/* ============================================================
   PORTFOLIO — custom.css
   Dark cybersecurity theme — Space Grotesk + JetBrains Mono
   ============================================================ */

:root {
  --bg: #0d1117;
  --surface: #161b22;
  --border: #21262d;
  --red: #dc2626;
  --red-light: #ef4444;
  --text: #f0f6fc;
  --muted: #8b949e;
  --tag-bg: #1f2937;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Canvas background — matrix rain lives here */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* Glowing grid overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,255,65,0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,255,65,0.055) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
  animation: grid-breathe 5s ease-in-out infinite;
}
@keyframes grid-breathe {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.6; }
}

/* Animated scan-line sweep */
.bg-scanline {
  position: fixed;
  left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, rgba(0,255,65,0.3) 40%, rgba(0,255,65,0.3) 60%, transparent);
  pointer-events: none;
  z-index: 1;
  animation: scanline-sweep 9s linear infinite;
}
@keyframes scanline-sweep {
  0%   { top: 64px; opacity: 0; }
  4%   { opacity: 1; }
  96%  { opacity: 0.6; }
  100% { top: 100vh; opacity: 0; }
}

/* HUD corner brackets */
.hud-br-tl, .hud-br-tr, .hud-br-bl, .hud-br-br {
  position: fixed;
  width: 28px; height: 28px;
  pointer-events: none;
  z-index: 10;
}
.hud-br-tl { top: 68px;  left: 6px;   border-top: 1.5px solid rgba(220,38,38,0.5); border-left:  1.5px solid rgba(220,38,38,0.5); }
.hud-br-tr { top: 68px;  right: 6px;  border-top: 1.5px solid rgba(220,38,38,0.5); border-right: 1.5px solid rgba(220,38,38,0.5); }
.hud-br-bl { bottom: 6px; left: 6px;  border-bottom: 1.5px solid rgba(220,38,38,0.5); border-left:  1.5px solid rgba(220,38,38,0.5); }
.hud-br-br { bottom: 6px; right: 6px; border-bottom: 1.5px solid rgba(220,38,38,0.5); border-right: 1.5px solid rgba(220,38,38,0.5); }

@media (prefers-reduced-motion: reduce) {
  #bg-canvas, .bg-scanline { display: none; }
  body::before { animation: none; }
  .ghost-col { animation: none; }
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--red); }

/* ── LOADING SCREEN ── */
#loading-screen {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.4s ease;
}
#loading-screen.hidden { opacity: 0; pointer-events: none; }
.loading-inner { display: flex; flex-direction: column; align-items: center; gap: 1rem; }
.loading-bar-wrap { width: 160px; height: 3px; background: var(--border); border-radius: 2px; overflow: hidden; }
.loading-bar { height: 100%; background: var(--red); animation: load-progress 1.2s ease forwards; }
@keyframes load-progress { from { width: 0; } to { width: 100%; } }
.loading-text { font-family: 'JetBrains Mono', monospace; font-size: 12px; color: var(--muted); }

/* ── NAVBAR ── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 8px 1.5rem;
  background: transparent;
}

.nav-terminal-box {
  max-width: 1200px;
  margin: 0 auto;
  background: rgba(13, 17, 23, 0.92);
  border: 1px solid rgba(63, 185, 80, 0.35);
  border-radius: 8px;
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(63, 185, 80, 0.08),
    0 0 20px rgba(63, 185, 80, 0.10),
    0 0 60px rgba(0, 0, 0, 0.6),
    0 8px 32px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(14px);
  animation: nav-box-glow 6s ease-in-out infinite;
}

@keyframes nav-box-glow {
  0%, 100% { box-shadow: 0 0 0 1px rgba(63,185,80,0.08), 0 0 20px rgba(63,185,80,0.10), 0 0 60px rgba(0,0,0,0.6), 0 8px 32px rgba(0,0,0,0.5); }
  50%       { box-shadow: 0 0 0 1px rgba(63,185,80,0.15), 0 0 32px rgba(63,185,80,0.18), 0 0 60px rgba(0,0,0,0.6), 0 8px 32px rgba(0,0,0,0.5); }
}

.nav-inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 5px 14px;
  gap: 0;
}

.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
  margin-right: 1rem;
}

/* Live + hamburger pushed to far right */
.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
  flex-shrink: 0;
}

.nav-live {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: #fff;
  white-space: nowrap;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(63, 185, 80, 0.15);
  border: 1px solid rgba(63, 185, 80, 0.75);
  box-shadow:
    0 0 8px rgba(63, 185, 80, 0.45),
    0 0 20px rgba(63, 185, 80, 0.22),
    inset 0 0 6px rgba(63, 185, 80, 0.10);
}

.logo-container {
  display: flex;
  align-items: center;
}

.navbar-logo {
  height: 52px;
  width: auto;
  object-fit: contain;
  transition: transform 0.3s ease, filter 0.3s ease;
  cursor: pointer;
}

.navbar-logo:hover {
  transform: scale(1.07);
  filter: drop-shadow(0 0 10px rgba(0, 255, 120, 0.65));
}

@media (max-width: 768px) {
  .navbar-logo { height: 40px; }
}

/* Wrapper holds the indicator + the ul so position:relative is scoped */
.nav-links-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

/* Sliding pill indicator */
.nav-indicator {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  height: 28px;
  border-radius: 6px;
  background: rgba(63, 185, 80, 0.15);
  border: 1px solid rgba(63, 185, 80, 0.75);
  box-shadow:
    0 0 8px rgba(63, 185, 80, 0.45),
    0 0 20px rgba(63, 185, 80, 0.22),
    inset 0 0 6px rgba(63, 185, 80, 0.10);
  transition: left 0.32s cubic-bezier(0.4, 0, 0.2, 1),
              width 0.32s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.2s ease;
  pointer-events: none;
  z-index: 0;
  opacity: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
  flex-wrap: nowrap;
  position: relative;
  z-index: 1;
}

.nav-links a {
  font-size: 12px;
  color: var(--muted);
  text-decoration: none;
  padding: 5px 9px;
  border-radius: 4px;
  transition: color 0.18s ease;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 400;
  white-space: nowrap;
  position: relative;
  z-index: 1;
}

.nav-links a:hover { color: #c8e6c9; }

.nav-links a.active { color: #fff; text-shadow: 0 0 8px rgba(63, 185, 80, 0.6); }

.nav-links a::after { display: none; }

.live-dot {
  width: 8px; height: 8px;
  background: #3fb950;
  border-radius: 50%;
  animation: pulse-green 2s ease-in-out infinite;
}
@keyframes pulse-green {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(63,185,80,0.5); }
  50% { opacity: 0.7; box-shadow: 0 0 0 4px rgba(63,185,80,0); }
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.hamburger span {
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s;
  display: block;
}
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 104px; left: 0; right: 0;
  background: rgba(13,17,23,0.98);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 999;
  padding: 1rem;
  flex-direction: column;
  gap: 0.25rem;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  color: var(--muted);
  text-decoration: none;
  padding: 10px 14px;
  font-size: 14px;
  border-radius: 4px;
  transition: all 0.2s;
}
.mobile-menu a:hover { color: var(--text); background: var(--surface); }
.mobile-menu a.active { color: #3fb950; background: rgba(63,185,80,0.08); box-shadow: inset 2px 0 0 #3fb950; }
.mobile-link-prompt { font-family: 'JetBrains Mono', monospace; font-size: 12px; color: #3fb950; opacity: 0.7; margin-right: 2px; }

/* ── GHOST TEXT ── */
.ghost-col {
  position: fixed;
  left: 10px; top: 0;
  width: 180px;
  height: 200%;
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
  opacity: 0.16;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: #3fb950;
  animation: scroll-up 22s linear infinite;
  white-space: pre-wrap;
  line-height: 1.9;
  text-shadow: 0 0 8px rgba(63,185,80,0.5);
}
@keyframes scroll-up {
  0% { transform: translateY(0); }
  100% { transform: translateY(-50%); }
}

/* ── LIVE TERMINAL ── */
#live-terminal {
  position: fixed;
  right: 16px; top: 112px;
  width: 220px; height: 280px;
  background: rgba(13,17,23,0.92);
  border: 1px solid rgba(63,185,80,0.35);
  border-radius: 6px;
  z-index: 100;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 0 20px rgba(63,185,80,0.15), 0 8px 40px rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
}
.term-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  background: #1c2128;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.term-dot { width: 10px; height: 10px; border-radius: 50%; }
.term-dot.r { background: #ff5f57; }
.term-dot.y { background: #ffbd2e; }
.term-dot.g { background: #28c840; }
.term-label { font-family: 'JetBrains Mono', monospace; font-size: 10px; color: #3fb950; margin-left: 4px; }
#term-body {
  flex: 1;
  overflow-y: auto;
  padding: 8px 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: #3fb950;
  line-height: 1.6;
}
#term-body::-webkit-scrollbar { width: 3px; }
#term-body::-webkit-scrollbar-thumb { background: var(--border); }

/* ── SECTIONS ── */
section { position: relative; z-index: 2; }
main { padding-top: 104px; }

.section-wrap { max-width: 1100px; margin: 0 auto; padding: 0 2rem; }

.section-head { text-align: center; margin-bottom: 3rem; }
.section-head h2 { font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 700; }
.section-head h2 span { color: var(--red); }
.section-head p {
  color: var(--muted);
  margin-top: 0.75rem;
  max-width: 620px;
  margin-left: auto; margin-right: auto;
  font-size: 15px;
}

/* Fade-in */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ── HERO ── */
#home {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}
#home::before {
  content: '';
  position: absolute;
  top: -10%;
  right: -5%;
  width: 55%;
  height: 80%;
  background: radial-gradient(ellipse at center, rgba(220,38,38,0.14) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  animation: glow-pulse-red 6s ease-in-out infinite;
}
#home::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 20%;
  width: 40%;
  height: 40%;
  background: radial-gradient(ellipse at center, rgba(63,185,80,0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  animation: glow-pulse-green 7s ease-in-out infinite;
}
@keyframes glow-pulse-red   { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }
@keyframes glow-pulse-green { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
#home .hero-wrap { position: relative; z-index: 1; }

.hero-wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 4rem 2rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: center;
}

.hero-left { max-width: 560px; }
.hero-label { font-size: 14px; color: var(--muted); font-family: 'JetBrains Mono', monospace; margin-bottom: 0.5rem; }
.hero-name { font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 700; line-height: 1.1; margin-bottom: 0.5rem; }

.hero-typewriter {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  color: var(--red);
  font-family: 'JetBrains Mono', monospace;
  min-height: 2.2rem;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0;
  white-space: nowrap;
}

.cursor {
  display: inline-block;
  width: 2px; height: 1.2em;
  background: var(--red);
  margin-left: 2px;
  animation: blink 0.8s step-end infinite;
  vertical-align: middle;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

.hero-bio { color: var(--muted); font-size: 15px; line-height: 1.8; margin-bottom: 2rem; max-width: 480px; }
.hero-actions { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }

.btn-hire {
  background: var(--red);
  color: #fff;
  padding: 10px 28px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
  font-family: 'Space Grotesk', sans-serif;
}
.btn-hire:hover { background: #b91c1c; transform: translateY(-1px); }

.hero-socials { display: flex; gap: 10px; }
.social-icon {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--muted);
  text-decoration: none;
  transition: all 0.2s;
  background: var(--surface);
}
.social-icon:hover { border-color: var(--red); color: var(--red); transform: translateY(-2px); }
.social-icon svg { width: 18px; height: 18px; }

/* Profile photo */
/*
.hero-right { display: flex; flex-direction: column; align-items: center; gap: 1.5rem; }
.profile-wrap { position: relative; }
.profile-img {
  width: 220px; height: 220px;
  border-radius: 50%;
  border: 2px solid var(--red);
  box-shadow:
    0 0 0 5px rgba(220,38,38,0.18),
    0 0 30px rgba(220,38,38,0.55),
    0 0 70px rgba(220,38,38,0.25),
    0 0 120px rgba(220,38,38,0.1);
  animation: float 4s ease-in-out infinite, profile-glow 4s ease-in-out infinite;
  background: var(--surface);
  display: flex; align-items: center; justify-content: center;
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--red);
  font-family: 'JetBrains Mono', monospace;
  overflow: hidden;
*/

.hero-right { display: flex; flex-direction: column; align-items: center; gap: 1.5rem; }
.profile-wrap { position: relative; }
.profile-img {
  width: 220px; height: 220px;
  border-radius: 50%;
  border: 1px solid rgba(63,185,80,0.35);
  box-shadow:
    0 0 20px rgba(63,185,80,0.35),
    0 0 45px rgba(63,185,80,0.18),
    0 8px 40px rgba(0,0,0,0.6);
  animation: float 4s ease-in-out infinite, profile-glow 4s ease-in-out infinite;
  background: var(--surface);
  display: flex; align-items: center; justify-content: center;
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--red);
  font-family: 'JetBrains Mono', monospace;
  overflow: hidden;
  
}
@keyframes profile-glow {
  0%, 100% { box-shadow: 0 0 0 5px rgba(220,38,38,0.18), 0 0 30px rgba(220,38,38,0.55), 0 0 70px rgba(220,38,38,0.25), 0 0 120px rgba(220,38,38,0.1); }
  50%       { box-shadow: 0 0 0 5px rgba(220,38,38,0.28), 0 0 50px rgba(220,38,38,0.7), 0 0 90px rgba(220,38,38,0.35), 0 0 150px rgba(220,38,38,0.15); }
}
.profile-img img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* ── TAGS ── */
.tags-wrap { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  background: var(--tag-bg);
  color: var(--muted);
  border-radius: 4px;
  font-size: 11px;
  padding: 3px 9px;
  font-family: 'JetBrains Mono', monospace;
  border: 1px solid transparent;
  transition: all 0.2s;
  white-space: nowrap;
}
.tag:hover { border-color: var(--red); color: var(--red); }

/* ── SERVICES ── */
@keyframes service-card-glow {
  0%, 100% {
    border-color: rgba(63,185,80,0.35);
    box-shadow: 0 0 0 1px rgba(63,185,80,0.08), 0 0 20px rgba(63,185,80,0.10), 0 0 60px rgba(0,0,0,0.6);
  }
  50% {
    border-color: rgba(63,185,80,0.55);
    box-shadow: 0 0 0 1px rgba(63,185,80,0.15), 0 0 32px rgba(63,185,80,0.18), 0 0 60px rgba(0,0,0,0.6);
  }
}
.services-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.service-card {
  background: var(--surface);
  border: 1px solid rgba(63,185,80,0.35);
  border-radius: 8px;
  padding: 28px;
  transition: transform 0.3s ease;
  cursor: default;
  animation: service-card-glow 3s ease-in-out infinite;
}
.service-card:hover { transform: translateY(-4px); }
.service-icon { font-size: 2rem; margin-bottom: 1rem; display: block; }
.service-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.75rem; }
.service-card p { color: var(--muted); font-size: 14px; line-height: 1.7; margin-bottom: 1.25rem; }
.service-card .tag {
  background: rgba(63,185,80,0.15);
  color: #fff;
  border: 1px solid rgba(63,185,80,0.75);
  border-radius: 6px;
  font-size: 11px;
  padding: 4px 10px;
  font-family: 'JetBrains Mono', monospace;
  box-shadow: 0 0 8px rgba(63,185,80,0.45), 0 0 20px rgba(63,185,80,0.22), inset 0 0 6px rgba(63,185,80,0.10);
  transition: all 0.2s;
  white-space: nowrap;
}
.service-card .tag:hover {
  background: rgba(63,185,80,0.25);
  box-shadow: 0 0 12px rgba(63,185,80,0.60), 0 0 28px rgba(63,185,80,0.30), inset 0 0 8px rgba(63,185,80,0.15);
}

/* ════════════════════════════════════════════════════════════════
   SKILL MATRIX  (sk-*)
   ════════════════════════════════════════════════════════════════ */

/* ── Terminal command strip ── */
.sk-terminal-strip {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.6rem 1rem;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0;
  row-gap: 4px;
  overflow: hidden;
}

.sk-ts-prompt { color: #22c55e; font-weight: 600; }
.sk-ts-sep    { color: var(--muted); }
.sk-ts-path   { color: #60a5fa; }
.sk-ts-dollar { color: var(--muted); }
.sk-ts-cmd    { color: var(--text); }
.sk-ts-divider{ color: var(--border); margin: 0 4px; }
.sk-ts-ok     { color: var(--muted); }
.sk-ts-hi     { color: #22c55e; font-weight: 700; }

/* ── Module grid ── */
.sk-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

/* ── Module card ── */
.sk-module {
  background: var(--surface);
  border: 1px solid rgba(63,185,80,0.35);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  transition: box-shadow 0.3s, border-color 0.3s, transform 0.3s;
  animation: service-card-glow 3s ease-in-out infinite;
}

.sk-module::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(63,185,80,0.04) 0%, transparent 55%);
  pointer-events: none;
  border-radius: inherit;
}

.sk-module:hover {
  box-shadow: 0 6px 30px rgba(63,185,80,0.18), inset 0 0 20px rgba(63,185,80,0.04);
  border-color: rgba(63,185,80,0.55);
  transform: translateY(-4px);
}

/* ── Card header ── */
.sk-module-header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1rem 1.2rem;
  border-bottom: 1px solid var(--border);
  background: rgba(63,185,80,0.025);
  position: relative;
  overflow: hidden;
}

/* scan-line sweep on hover */
.sk-module:hover .sk-module-header::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(63,185,80,0.07) 50%, transparent 100%);
  animation: sk-sweep 0.55s ease-out forwards;
}

@keyframes sk-sweep {
  from { transform: translateX(-100%); }
  to   { transform: translateX(200%); }
}

.sk-module-icon {
  width: 36px;
  height: 36px;
  background: rgba(63,185,80,0.1);
  border: 1px solid rgba(63,185,80,0.25);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(63,185,80,1);
  flex-shrink: 0;
  transition: background 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.sk-module:hover .sk-module-icon {
  background: rgba(63,185,80,0.2);
  border-color: rgba(63,185,80,0.5);
  box-shadow: 0 0 10px rgba(63,185,80,0.2);
}

.sk-module-meta {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
}

.sk-module-name {
  font-size: 17px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.01em;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sk-module-count {
  font-family: 'JetBrains Mono', monospace;
  font-size: 28px;
  font-weight: 800;
  color: rgba(63,185,80,1);
  opacity: 0.2;
  letter-spacing: -0.04em;
  line-height: 1;
  flex-shrink: 0;
  transition: opacity 0.25s, text-shadow 0.25s;
}

.sk-module:hover .sk-module-count {
  opacity: 0.6;
  text-shadow: 0 0 20px rgba(63,185,80,0.3);
}

/* ── Skill nodes ── */
.sk-module-skills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 1rem 1.2rem;
  flex: 1;
  align-content: flex-start;
}

.sk-module-skills .pill {
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  white-space: nowrap;
}

/* ── Status footer ── */
.sk-module-footer {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0.5rem 1.1rem;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.sk-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(63,185,80,1);
  flex-shrink: 0;
  box-shadow: 0 0 6px rgba(63,185,80,0.5);
  animation: sk-dot-pulse 2.4s ease-in-out infinite;
}

@keyframes sk-dot-pulse {
  0%, 100% { opacity: 1;    box-shadow: 0 0 5px  rgba(63,185,80,0.5); }
  50%       { opacity: 0.5; box-shadow: 0 0 10px rgba(63,185,80,0.18); }
}

.sk-status-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: rgba(63,185,80,1);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  flex-shrink: 0;
}

.sk-scan-bar {
  flex: 1;
  height: 2px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}

.sk-scan-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, rgba(63,185,80,1), rgba(63,185,80,0.2));
  border-radius: 2px;
  animation: sk-fill 3s ease-in-out infinite alternate;
}

@keyframes sk-fill {
  0%   { width: 12%; opacity: 0.5; }
  100% { width: 94%; opacity: 1;   }
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .sk-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .sk-grid { grid-template-columns: 1fr; }
  .sk-terminal-strip { font-size: 11px; }
  .sk-module-name { font-size: 13.5px; }
}

/* ── CERTIFICATIONS ── */
.cert-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 2rem;
  background: var(--surface);
  border: 1.5px solid rgba(63,185,80,0.5);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 0 18px rgba(63,185,80,0.15);
}
.cert-nav { background: #0d1117; border-right: 1px solid rgba(63,185,80,0.2); padding: 1rem 0; }
.cert-nav-item {
  padding: 14px 20px;
  cursor: pointer;
  font-size: 13px;
  color: var(--muted);
  border-left: 3px solid transparent;
  transition: all 0.2s;
  line-height: 1.4;
}
.cert-nav-item:hover { color: var(--text); background: rgba(255,255,255,0.03); }
.cert-nav-item.active { color: #ff5f57; border-left-color: #ff5f57; background: rgba(255,95,87,0.06); }
.cert-panel { padding: 2rem; display: none; }
.cert-panel.active { display: block; }
.cert-detail-top { display: grid; grid-template-columns: 240px 1fr; gap: 1.5rem; margin-bottom: 1.5rem; }
.cert-img-placeholder {
  width: 240px; height: 180px;
  background: #0d1117;
  border: 1px solid var(--border);
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  color: var(--muted);
  font-size: 13px;
  font-family: 'JetBrains Mono', monospace;
  flex-direction: column;
  gap: 8px;
}
.cert-info h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 6px; }
.cert-info-label {
  font-size: 11px;
  color: #ff5f57;
  font-family: 'JetBrains Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1rem;
}
.cert-table { width: 100%; border-collapse: collapse; }
.cert-table tr { border-bottom: 1px solid var(--border); }
.cert-table td { padding: 8px 0; font-size: 14px; vertical-align: top; }
.cert-table td:first-child { color: var(--muted); width: 90px; font-size: 13px; }
.cert-desc { color: var(--muted); font-size: 14px; line-height: 1.7; }

/* ── EXPERIENCE ── */
.exp-cards { display: flex; flex-direction: column; gap: 1.5rem; }
.exp-card {
  background: var(--surface);
  border: 1px solid rgba(63,185,80,0.35);
  border-radius: 8px;
  padding: 28px;
  transition: transform 0.3s ease;
  cursor: default;
  animation: service-card-glow 3s ease-in-out infinite;
}
.exp-card:hover { transform: translateY(-4px); }
.exp-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 0.5rem; flex-wrap: wrap; gap: 0.5rem; }
.exp-title { display: flex; align-items: center; gap: 10px; font-size: 1.1rem; font-weight: 700; }
.pulse-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: rgba(63,185,80,1);
  flex-shrink: 0;
  animation: pulse-green-dot 2s ease-in-out infinite;
}
.pulse-dot-green { background: rgba(63,185,80,1); animation-name: pulse-green-dot; }
@keyframes pulse-green-dot { 0%, 100% { box-shadow: 0 0 0 0 rgba(63,185,80,0.5); } 50% { box-shadow: 0 0 0 5px rgba(63,185,80,0); } }
.exp-badge {
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 20px;
  border: 1px solid rgba(63,185,80,0.75);
  color: rgba(63,185,80,1);
  font-family: 'JetBrains Mono', monospace;
}
.exp-badge-muted { border-color: var(--muted); color: var(--muted); }
.exp-company { color: rgba(63,185,80,1); font-size: 14px; margin-bottom: 0.25rem; font-weight: 600; }
.exp-meta { font-size: 13px; color: var(--muted); font-family: 'JetBrains Mono', monospace; margin-bottom: 1rem; }
.exp-desc { color: var(--muted); font-size: 14px; line-height: 1.7; margin-bottom: 1rem; }
.exp-achievements h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.5rem;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.5px;
}
.exp-achievements ul { list-style: none; display: flex; flex-direction: column; gap: 4px; margin-bottom: 1rem; }
.exp-achievements li { font-size: 14px; color: var(--muted); padding-left: 16px; position: relative; }
.exp-achievements li::before { content: '▸'; position: absolute; left: 0; color: rgba(63,185,80,1); font-size: 10px; top: 3px; }

/* ── EDUCATION ── */
.edu-cards { display: flex; flex-direction: column; gap: 1.5rem; }
.edu-card {
  background: var(--surface);
  border: 1px solid rgba(63,185,80,0.35);
  border-radius: 8px;
  padding: 28px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.5rem;
  align-items: start;
  transition: all 0.3s;
}
.edu-card:hover { border-color: rgba(63,185,80,0.6); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(63,185,80,0.1); }
.edu-icon {
  width: 52px; height: 52px;
  border-radius: 8px;
  background: rgba(63,185,80,0.1);
  border: 1px solid rgba(63,185,80,0.3);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
}
.edu-info h3 { font-size: 1rem; font-weight: 700; margin-bottom: 4px; }
.edu-school { color: rgba(63,185,80,1); font-size: 14px; margin-bottom: 4px; display: block; }
.edu-school-link { text-decoration: none; cursor: pointer; transition: color 0.2s; }
.edu-school-link:hover { color: #fff; text-decoration: underline; }
.edu-meta { font-size: 13px; color: var(--muted); font-family: 'JetBrains Mono', monospace; margin-bottom: 0.75rem; }
.edu-location {
  font-size: 12px;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  margin: 0 0 4px 0;
  display: flex;
  align-items: center;
  gap: 4px;
}
.edu-subjects-label {
  font-size: 12px;
  font-weight: 400;
  color: var(--muted);
  margin-bottom: 0.4rem;
  margin-top: 0.25rem;
}

/* ── VOLUNTEERING TIMELINE ── */
.vol-orgs { display: flex; flex-direction: column; gap: 2rem; }

.vol-org-card {
  position: relative;
  background: var(--surface);
  border: 1px solid rgba(63,185,80,0.35);
  border-radius: 10px;
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.vol-org-card:hover {
  border-color: rgba(63,185,80,0.35);
  box-shadow: 0 8px 32px rgba(63,185,80,0.07);
}

.vol-org-header {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.5rem 1.75rem;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(135deg, rgba(63,185,80,0.055) 0%, rgba(0,0,0,0.22) 100%);
}
.vol-org-logo {
  width: 52px; height: 52px;
  border-radius: 10px;
  background: rgba(63,185,80,0.08);
  border: 1px solid rgba(63,185,80,0.25);
  display: flex; align-items: center; justify-content: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 700;
  color: rgba(63,185,80,1);
  text-align: center;
  line-height: 1.2;
  flex-shrink: 0;
  overflow: hidden;
  letter-spacing: 0.5px;
}
.vol-org-logo img { width: 100%; height: 100%; object-fit: cover; border-radius: 9px; }
.vol-org-info { display: flex; flex-direction: column; gap: 3px; }
.vol-org-info h3 { font-size: 1rem; font-weight: 700; margin: 0; }
.vol-org-duration, .vol-org-location {
  font-size: 12px;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Timeline container */
.vol-timeline {
  position: relative;
  padding: 1.75rem 1.75rem 1rem 1.75rem;
}
.vol-timeline-line {
  position: absolute;
  left: calc(1.75rem + 9px);
  top: 1.75rem;
  bottom: 1.75rem;
  width: 1px;
  background: linear-gradient(to bottom, rgba(63,185,80,0.7), rgba(63,185,80,0.25) 70%, transparent);
  pointer-events: none;
}

/* Individual role row */
.vol-role {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 1.25rem;
  margin-bottom: 1.75rem;
  position: relative;
}
.vol-role:last-child { margin-bottom: 0; }

/* Dot */
.vol-role-dot-wrap { display: flex; justify-content: center; padding-top: 3px; }
.vol-role-dot {
  width: 20px; height: 20px;
  display: flex; align-items: flex-start; justify-content: center;
  position: relative;
}
.vol-dot-inner {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid rgba(63,185,80,0.5);
  position: relative;
  z-index: 1;
  transform: scale(0.6);
  opacity: 0;
  transition: transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s ease, border-color 0.3s, background 0.3s, box-shadow 0.3s;
}
.vol-role-dot.vol-dot-visible .vol-dot-inner {
  transform: scale(1);
  opacity: 1;
  border-color: rgba(63,185,80,1);
}
.vol-role-dot.vol-dot-current .vol-dot-inner {
  background: rgba(63,185,80,1);
  border-color: rgba(63,185,80,1);
  box-shadow: 0 0 0 3px rgba(63,185,80,0.18), 0 0 14px rgba(63,185,80,0.45);
  animation: vol-dot-pulse 2.2s ease-in-out infinite;
}
@keyframes vol-dot-pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(63,185,80,0.18), 0 0 14px rgba(63,185,80,0.4); }
  50%       { box-shadow: 0 0 0 6px rgba(63,185,80,0.08), 0 0 22px rgba(63,185,80,0.6); }
}

/* Role content */
.vol-role-header {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 3px;
}
.vol-role-title { font-size: 0.95rem; font-weight: 700; color: var(--text); }
.vol-present-badge {
  font-size: 10px;
  padding: 2px 9px;
  border-radius: 20px;
  background: rgba(63,185,80,0.08);
  border: 1px solid rgba(63,185,80,0.35);
  color: #3fb950;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.vol-role-meta {
  font-size: 12px;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  margin-bottom: 8px;
}
.vol-role-desc {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.75;
  margin-bottom: 4px;
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}
.vol-role-desc.vol-desc-expanded {
  -webkit-line-clamp: unset;
  display: block;
}
.vol-show-more {
  font-size: 12px;
  color: rgba(63,185,80,1);
  background: none;
  border: none;
  padding: 0 0 8px;
  cursor: pointer;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  display: block;
  transition: opacity 0.2s;
}
.vol-show-more:hover { opacity: 0.7; }
.vol-show-more.vol-show-more-hidden { display: none; }

.vol-role-achievements {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 6px;
}
.vol-role-achievements li {
  font-size: 13px;
  color: var(--muted);
  padding-left: 16px;
  position: relative;
  line-height: 1.65;
}
.vol-role-achievements li::before {
  content: '\25B8';
  position: absolute;
  left: 0;
  color: rgba(63,185,80,1);
  font-size: 10px;
  top: 3px;
}

/* Responsive */
@media (max-width: 768px) {
  .vol-org-header { padding: 1.25rem; }
  .vol-timeline { padding: 1.5rem 1.25rem 1rem; }
  .vol-timeline-line { left: calc(1.25rem + 9px); }
}

/* Hover top-accent sweep */
.vol-org-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, rgba(63,185,80,0.75) 30%, rgba(63,185,80,0.75) 70%, transparent 100%);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.4s ease;
}
.vol-org-card:hover::before { transform: scaleX(1); }

/* Role right-column: prevent overflow */
.vol-role-content { min-width: 0; }

/* Org logo image fit */
.vol-org-logo img { width: 100%; height: 100%; object-fit: cover; border-radius: 9px; }

/* Responsive: stack mobile nicely */
@media (max-width: 480px) {
  .vol-org-header { gap: 1rem; }
  .vol-role { gap: 1rem; }
}

/* ── VOLUNTEERING — org initials inside research-cert-placeholder ── */
.vol-initials-placeholder {
  font-family: 'JetBrains Mono', monospace;
  background: rgba(220, 38, 38, 0.06);
  border-color: rgba(220, 38, 38, 0.25);
}
.vol-initials-text {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--red);
  letter-spacing: 0.04em;
  text-align: center;
  line-height: 1.2;
  padding: 0 4px;
}

/* ── VOLUNTEERING HOME PREVIEW ── */
.vol-impact-row {
  display: flex;
  align-items: center;
  gap: 2rem;
  margin: 2rem 0;
  padding: 1.25rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  flex-wrap: wrap;
}
.vol-impact-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.vol-impact-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--red);
  line-height: 1;
}
.vol-impact-label {
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: 'JetBrains Mono', monospace;
}
.vol-impact-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
  flex-shrink: 0;
}

.vol-preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 0.5rem;
}
.vol-preview-card {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 1rem 1.1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: border-color 0.2s, transform 0.2s;
}
.vol-preview-card:hover {
  border-color: rgba(220, 38, 38, 0.5);
  transform: translateY(-2px);
}
.vol-preview-logo {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: rgba(220, 38, 38, 0.1);
  border: 1px solid rgba(220, 38, 38, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--red);
  flex-shrink: 0;
  overflow: hidden;
}
.vol-preview-logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 7px;
}
.vol-preview-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.vol-preview-name {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}
.vol-preview-role {
  font-size: 0.78rem;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
}
.vol-preview-present {
  color: #3fb950;
  font-size: 0.7rem;
}
.vol-preview-duration {
  font-size: 0.72rem;
  color: var(--muted);
  opacity: 0.7;
  font-family: 'JetBrains Mono', monospace;
}

@media (max-width: 768px) {
  .vol-preview-grid { grid-template-columns: 1fr; }
  .vol-impact-row { gap: 1.25rem; }
}
@media (min-width: 480px) and (max-width: 768px) {
  .vol-preview-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ── VOLUNTEERING DEDICATED PAGE ── */
.vol-list-header {
  padding: 5rem 0 2rem;
}
.vol-list-title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  margin: 0.4rem 0 0.75rem;
  line-height: 1.2;
}
.vol-list-title span { color: var(--red); }
.vol-list-sub {
  color: var(--muted);
  max-width: 640px;
  line-height: 1.65;
}

/* 2-column grid on the dedicated page */
.vol-orgs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
@media (max-width: 768px) {
  .vol-orgs-grid { grid-template-columns: 1fr; }
}

/* Category badge on org cards */
.vol-org-category-badge {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid;
  margin-bottom: 3px;
}
.vol-cat-tech      { color: #60a5fa; border-color: rgba(96,165,250,0.35); background: rgba(96,165,250,0.08); }
.vol-cat-social    { color: #34d399; border-color: rgba(52,211,153,0.35); background: rgba(52,211,153,0.08); }
.vol-cat-academic  { color: #a78bfa; border-color: rgba(167,139,250,0.35); background: rgba(167,139,250,0.08); }
.vol-cat-leadership{ color: #fbbf24; border-color: rgba(251,191,36,0.35); background: rgba(251,191,36,0.08); }
.vol-cat-other     { color: var(--muted); border-color: var(--border); background: transparent; }

/* ── WRITEUPS / PROJECT CARDS ── */
.writeup-cards { display: flex; flex-direction: column; gap: 1.25rem; }
.writeup-card {
  background: var(--surface);
  border: 1px solid rgba(63,185,80,0.35);
  border-radius: 8px;
  padding: 20px;
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1.25rem;
  align-items: start;
  transition: all 0.3s;
}
.writeup-card:hover { border-color: rgba(63,185,80,0.7); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(63,185,80,0.1); }
.writeup-thumb {
  width: 120px; height: 80px;
  background: var(--tag-bg);
  border-radius: 6px;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--muted);
  font-size: 11px;
  font-family: 'JetBrains Mono', monospace;
  text-align: center;
  flex-shrink: 0;
}
.writeup-content { flex: 1; }
.writeup-tags { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 8px; }
.writeup-title { font-size: 15px; font-weight: 600; margin-bottom: 6px; line-height: 1.4; }
.writeup-excerpt { font-size: 13px; color: var(--muted); line-height: 1.6; margin-bottom: 8px; }
.writeup-meta { font-size: 12px; color: var(--muted); font-family: 'JetBrains Mono', monospace; opacity: 0.7; }

/* Pills */
.pill {
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 20px;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  text-decoration: none;
  display: inline-block;
}
.pill-red { background: rgba(220,38,38,0.15); color: var(--red); border: 1px solid rgba(220,38,38,0.3); }
.pill-blue { background: rgba(59,130,246,0.15); color: #60a5fa; border: 1px solid rgba(59,130,246,0.3); }
.pill-green { background: rgba(34,197,94,0.15); color: #4ade80; border: 1px solid rgba(34,197,94,0.3); }
.pill-yellow { background: rgba(234,179,8,0.15); color: #facc15; border: 1px solid rgba(234,179,8,0.3); }
.pill-purple { background: rgba(168,85,247,0.15); color: #c084fc; border: 1px solid rgba(168,85,247,0.3); }
.pill-gray { background: var(--tag-bg); color: var(--muted); border: 1px solid var(--border); }

/* ── VIEW ALL ── */
.btn-view-all {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 1.5rem;
  color: rgba(63,185,80,1);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  padding: 8px 0;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}
.btn-view-all:hover { border-color: rgba(63,185,80,1); }

/* ── WRITEUPS PAGE ── */
.writeups-breadcrumb { font-family: 'JetBrains Mono', monospace; font-size: 14px; color: var(--muted); margin-bottom: 1.5rem; }
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
  font-family: 'JetBrains Mono', monospace;
  margin-bottom: 1.5rem;
  transition: color 0.2s;
}
.back-link:hover { color: var(--text); }

/* ── CONTACT ── */
.contact-wrap { max-width: 900px; margin: 0 auto; padding: 0 2rem; }
.contact-head { margin-bottom: 2.5rem; }
.contact-head h2 span { color: rgba(63,185,80,1); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: stretch; }

/* ── Left info card ── */
.contact-info {
  background: var(--surface);
  border: 1px solid rgba(63,185,80,0.35);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.contact-info-hdr {
  background: rgba(63,185,80,0.04);
  border-bottom: 1px solid rgba(63,185,80,0.2);
  padding: 0.7rem 1.35rem;
  display: flex;
  align-items: center;
  gap: 10px;
}
.ci-dots { display: flex; gap: 5px; }
.ci-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.ci-hdr-label { font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--muted); }
.contact-info-body { padding: 1.5rem 1.75rem; display: flex; flex-direction: column; gap: 1rem; flex: 1; }

.contact-item { display: flex; align-items: flex-start; gap: 1rem; }
.contact-item-icon {
  width: 40px; height: 40px;
  border-radius: 8px;
  background: rgba(63,185,80,0.1);
  border: 1px solid rgba(63,185,80,0.25);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
}
.contact-item-body p:first-child {
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  font-family: 'JetBrains Mono', monospace;
  margin-bottom: 2px;
}
.contact-item-body p:last-child { font-size: 14px; }
.contact-avail-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: rgba(63,185,80,1);
  box-shadow: 0 0 6px rgba(63,185,80,0.6);
  animation: sk-dot-pulse 2.4s ease-in-out infinite;
  vertical-align: middle;
  margin-right: 5px;
}
.contact-eng { margin-top: 0.25rem; }
.contact-eng-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: rgba(63,185,80,0.8);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.contact-eng-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.contact-eng-tag {
  background: rgba(63,185,80,0.1);
  color: #fff;
  border: 1px solid rgba(63,185,80,0.6);
  border-radius: 6px;
  font-size: 11px;
  padding: 4px 10px;
  font-family: 'JetBrains Mono', monospace;
  box-shadow: 0 0 7px rgba(63,185,80,0.35), 0 0 16px rgba(63,185,80,0.15), inset 0 0 5px rgba(63,185,80,0.08);
  white-space: nowrap;
}
.response-box {
  margin-top: 0.25rem;
  background: rgba(63,185,80,0.04);
  border: 1px solid rgba(63,185,80,0.2);
  border-radius: 6px;
  padding: 1rem;
}
.response-box h4 { font-size: 13px; font-weight: 600; color: rgba(63,185,80,1); margin-bottom: 6px; font-family: 'JetBrains Mono', monospace; }
.response-box p { font-size: 13px; color: var(--muted); line-height: 1.6; }

/* Contact form */
.contact-form-wrap { display: flex; flex-direction: column; }
.contact-form {
  background: var(--surface);
  border: 1px solid rgba(63,185,80,0.35);
  border-radius: 8px;
  padding: 1.75rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.contact-form .form-group:has(textarea) { flex: 1; display: flex; flex-direction: column; }
.contact-form .form-group textarea { flex: 1; min-height: 100px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1rem; }
.form-group { margin-bottom: 1rem; display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 12px; color: var(--muted); font-family: 'JetBrains Mono', monospace; text-transform: uppercase; letter-spacing: 0.5px; }
.form-group input,
.form-group textarea,
.form-group select {
  background: #0d1117;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 4px;
  padding: 10px 14px;
  font-size: 14px;
  font-family: 'Space Grotesk', sans-serif;
  transition: border-color 0.2s;
  width: 100%;
  outline: none;
  resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus { border-color: rgba(63,185,80,0.7); }
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--muted); opacity: 0.6; }
.btn-submit {
  width: 100%;
  background: rgba(63,185,80,1);
  color: #0d1117;
  border: none;
  padding: 12px;
  border-radius: 4px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  font-family: 'Space Grotesk', sans-serif;
  transition: background 0.2s, transform 0.2s;
}
.btn-submit:hover { background: rgba(46,160,67,1); transform: translateY(-1px); }

/* Flash messages */
.flash-message {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 1rem auto;
  padding: 12px 20px;
  border-radius: 6px;
  font-size: 14px;
  font-family: 'JetBrains Mono', monospace;
}
.flash-success { background: rgba(63,185,80,0.1); border: 1px solid rgba(63,185,80,0.3); color: #3fb950; }
.flash-error { background: rgba(220,38,38,0.1); border: 1px solid rgba(220,38,38,0.3); color: var(--red); }
#form-success-banner { margin-bottom: 1.5rem; }

/* ── CONTACT SECTION REFINEMENTS ── */
.contact-info,
.contact-form {
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow:
    0 0 0 1px rgba(63,185,80,0.1),
    0 8px 32px rgba(0,0,0,0.45),
    inset 0 1px 0 rgba(255,255,255,0.03);
  transition: box-shadow 0.35s ease, border-color 0.35s ease;
}
.contact-info:hover {
  border-color: rgba(63,185,80,0.55);
  box-shadow:
    0 0 0 1px rgba(63,185,80,0.18),
    0 0 22px rgba(63,185,80,0.07),
    0 8px 32px rgba(0,0,0,0.45),
    inset 0 1px 0 rgba(255,255,255,0.03);
}
.contact-form:hover {
  border-color: rgba(63,185,80,0.55);
  box-shadow:
    0 0 0 1px rgba(63,185,80,0.18),
    0 0 22px rgba(63,185,80,0.07),
    0 8px 32px rgba(0,0,0,0.45),
    inset 0 1px 0 rgba(255,255,255,0.03);
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: rgba(63,185,80,0.8);
  box-shadow: 0 0 0 3px rgba(63,185,80,0.1);
  background: rgba(13,17,23,0.98);
}
.btn-submit {
  box-shadow: 0 0 0 0 rgba(63,185,80,0);
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}
.btn-submit:hover {
  background: rgba(46,160,67,1);
  transform: translateY(-1px);
  box-shadow: 0 0 18px rgba(63,185,80,0.3), 0 0 40px rgba(63,185,80,0.1);
}
.contact-item-icon {
  transition: background 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.contact-item:hover .contact-item-icon {
  background: rgba(63,185,80,0.15);
  border-color: rgba(63,185,80,0.45);
  box-shadow: 0 0 10px rgba(63,185,80,0.18);
}

/* ═══════════════════════════════════════════════════════
   CYBER FOOTER SYSTEM
   ═══════════════════════════════════════════════════════ */

footer.cf-footer {
  position: relative;
  z-index: 2;
  background: var(--bg);
  overflow: hidden;
  padding-top: 2.5rem;
}

/* Background grid */
.cf-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(34,197,94,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34,197,94,0.025) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
  z-index: 0;
}

/* Radial ambient glows */
.cf-bg-glow {
  position: absolute;
  width: 500px; height: 500px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  top: -80px;
}
.cf-bg-glow-l {
  left: -100px;
  background: radial-gradient(circle, rgba(34,197,94,0.05) 0%, transparent 65%);
}
.cf-bg-glow-r {
  right: -100px;
  top: 40px;
  background: radial-gradient(circle, rgba(96,165,250,0.035) 0%, transparent 65%);
}

/* Entry divider */
.cf-entry-rule {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 0 3rem 3rem;
  position: relative;
  z-index: 1;
}
.cf-entry-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(34,197,94,0.3), transparent);
}
.cf-entry-mark {
  font-size: 13px;
  color: rgba(34,197,94,0.55);
  font-family: 'JetBrains Mono', monospace;
  animation: cf-mark-pulse 4s ease-in-out infinite;
}
@keyframes cf-mark-pulse {
  0%, 100% { opacity: 0.55; text-shadow: none; }
  50% { opacity: 1; text-shadow: 0 0 12px rgba(34,197,94,0.7); }
}

/* ── Main footer 2-column grid ── */
.cf-main {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  padding: 0 3rem 3.5rem;
  max-width: 1280px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* ── Brand column ── */
.cf-brand-col {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 1.75rem;
}
.cf-brand-left { display: flex; flex-direction: column; gap: 1rem; }
.cf-brand-right {
  padding-left: 1.5rem;
  border-left: 1px solid rgba(34,197,94,0.15);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  text-align: right;
  margin-left: auto;
}

.cf-brand-sys {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.15em;
  color: rgba(34,197,94,0.75);
  text-transform: uppercase;
}
.cf-sys-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 6px rgba(34,197,94,0.8);
  animation: sk-dot-pulse 2.4s ease-in-out infinite;
  flex-shrink: 0;
}

.cf-brand-name-block {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.5rem, 2.2vw, 1.9rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
}
.cf-bracket { color: #22c55e; }
.cf-bracket-open { color: #ffffff; }
.cf-brand-black { color: var(--text); }
.cf-brand-ethics { color: #22c55e; }

.cf-brand-desc {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.75;
  text-align: justify;
}

.cf-brand-rule {
  display: flex;
  align-items: center;
  gap: 6px;
}
.cf-rule-line { flex: 1; height: 1px; background: rgba(34,197,94,0.18); }
.cf-rule-node { font-size: 8px; color: rgba(34,197,94,0.35); }

.cf-specs { display: flex; flex-direction: column; gap: 5px; align-items: flex-end; }
.cf-specs-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: rgba(34,197,94,0.65);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 3px;
  text-align: right;
}
.cf-specs-list {
  list-style: none;
  padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 5px;
  align-items: flex-end;
}
.cf-specs-list li {
  font-size: 12px;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  transition: color 0.2s;
  text-align: right;
}
.cf-specs-list li:hover { color: var(--text); }
.cf-li-arrow { color: #22c55e; margin-left: 7px; margin-right: 0; }

.cf-collab-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
}
.cf-avail-row {
  display: flex;
  justify-content: center;
}
.cf-social-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.cf-avail {
  display: inline-flex;
  align-items: flex-start;
  gap: 10px;
  background: rgba(34,197,94,0.05);
  border: 1px solid rgba(34,197,94,0.22);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  white-space: nowrap;
}
.cf-avail-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #22c55e;
  margin-top: 2px;
  box-shadow: 0 0 6px rgba(34,197,94,0.8);
  animation: sk-dot-pulse 2.4s ease-in-out infinite;
  flex-shrink: 0;
}
.cf-avail-text { display: flex; flex-direction: column; gap: 3px; }
.cf-avail-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 700;
  color: #22c55e;
  letter-spacing: 0.09em;
  white-space: nowrap;
}
.cf-avail-sub { font-size: 11px; color: var(--muted); white-space: nowrap; }

/* ── Navigation column ── */
.cf-nav-col { display: flex; flex-direction: column; gap: 0.75rem; }

.cf-nav-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: rgba(34,197,94,0.65);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.cf-nav-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2px;
  padding: 0.8rem 1.1rem;
  border: 1px solid rgba(34,197,94,0.25);
  border-radius: 8px;
  background: rgba(34,197,94,0.03);
  box-shadow:
    0 0 0 1px rgba(34,197,94,0.06),
    0 0 22px rgba(34,197,94,0.07),
    inset 0 0 32px rgba(34,197,94,0.025);
  transition: border-color 0.3s, box-shadow 0.3s;
}
.cf-nav-strip:hover {
  border-color: rgba(34,197,94,0.38);
  box-shadow:
    0 0 0 1px rgba(34,197,94,0.1),
    0 0 32px rgba(34,197,94,0.1),
    inset 0 0 32px rgba(34,197,94,0.04);
}

.cf-nav-item {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--muted);
  text-decoration: none;
  padding: 5px 10px;
  border-radius: 4px;
  white-space: nowrap;
  transition: color 0.2s, background 0.2s;
}
.cf-nav-item:hover {
  color: var(--text);
  background: rgba(34,197,94,0.09);
}

.cf-nav-sep {
  color: rgba(34,197,94,0.38);
  font-family: 'JetBrains Mono', monospace;
  font-size: 15px;
  line-height: 1;
  user-select: none;
  flex-shrink: 0;
  padding: 0 1px;
}

/* Gradient rule between grid and terminal */
.cf-footer-rule {
  height: 1px;
  background: linear-gradient(90deg, transparent 5%, rgba(34,197,94,0.18) 35%, rgba(96,165,250,0.1) 65%, transparent 95%);
  margin: 0 3rem;
  position: relative;
  z-index: 1;
}

/* ── Terminal signature ── */
.cft-section {
  padding: 3rem;
  display: flex;
  justify-content: center;
  position: relative;
  z-index: 1;
}

.cft-terminal {
  width: 100%;
  max-width: 740px;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  font-family: 'JetBrains Mono', monospace;
  background: rgba(10,14,20,0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow:
    0 0 0 1px rgba(34,197,94,0.07),
    0 20px 55px rgba(0,0,0,0.6),
    0 0 50px rgba(34,197,94,0.04);
  transition: box-shadow 0.4s ease;
}
.cft-terminal:hover {
  box-shadow:
    0 0 0 1px rgba(34,197,94,0.16),
    0 20px 65px rgba(0,0,0,0.65),
    0 0 70px rgba(34,197,94,0.07);
}

.cft-bar {
  display: flex;
  align-items: center;
  padding: 10px 16px;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid rgba(34,197,94,0.1);
  position: relative;
}
.cft-dots { display: flex; gap: 6px; }
.cft-dot { width: 11px; height: 11px; border-radius: 50%; }
.cft-dot-r { background: #ff5f57; }
.cft-dot-y { background: #ffbd2e; }
.cft-dot-g { background: #28c840; }
.cft-bar-title {
  position: absolute;
  left: 50%; transform: translateX(-50%);
  font-size: 11px;
  color: var(--muted);
  pointer-events: none;
  white-space: nowrap;
}
.cft-bar-pid {
  margin-left: auto;
  font-size: 10px;
  color: rgba(34,197,94,0.38);
  letter-spacing: 0.08em;
}

.cft-body { padding: 1.25rem 1.6rem 1.5rem; line-height: 1.9; }

.cft-row { font-size: 13px; }
.cft-row-gap { height: 0.55rem; }
.cft-ps  { color: #22c55e; font-weight: 600; }
.cft-sep { color: var(--muted); }
.cft-path { color: #60a5fa; }
.cft-dol { color: var(--muted); }
.cft-cmd { color: var(--text); }
.cft-gt  { color: var(--muted); margin-right: 7px; }
.cft-row-out   { color: var(--muted); padding-left: 4px; }
.cft-row-status { color: #22c55e; font-weight: 700; padding-left: 4px; letter-spacing: 0.06em; }
.cft-row-status .cft-gt { color: #22c55e; }

.cft-cursor { color: #22c55e; animation: cft-blink 1s step-end infinite; }
@keyframes cft-blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* Sequential reveal (triggered by JS when terminal enters viewport) */
.cft-row {
  opacity: 0;
  transform: translateY(4px);
  transition-property: opacity, transform;
  transition-duration: 0.28s;
  transition-timing-function: ease;
  transition-delay: var(--d, 0s);
}
.cft-terminal.cft-visible .cft-row {
  opacity: 1;
  transform: translateY(0);
}

/* ── System status bar ── */
.cfst-bar {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.012);
  position: relative;
  z-index: 1;
}
.cfst-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0.6rem 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
}
.cfst-module { display: flex; align-items: center; gap: 5px; padding: 0 1rem; }
.cfst-indicator { width: 5px; height: 5px; border-radius: 50%; flex-shrink: 0; }
.cfst-green { background: #22c55e; box-shadow: 0 0 5px rgba(34,197,94,0.7); }
.cfst-yellow { background: #ffbd2e; box-shadow: 0 0 5px rgba(255,189,46,0.65); }
.cfst-key { color: var(--muted); letter-spacing: 0.09em; text-transform: uppercase; }
.cfst-colon { color: rgba(255,255,255,0.12); margin: 0 2px; }
.cfst-val { color: var(--text); font-weight: 600; }
.cfst-pipe { color: var(--border); font-size: 13px; line-height: 1; user-select: none; }

/* ── Micro-footer ── */
.cfm-bar {
  padding: 1rem 3rem;
  position: relative;
  z-index: 1;
}
.cfm-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--muted);
  flex-wrap: wrap;
}
.cfm-glow-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 7px rgba(34,197,94,0.9);
  animation: sk-dot-pulse 2.4s ease-in-out infinite;
  flex-shrink: 0;
}
.cfm-sep { color: rgba(255,255,255,0.12); }
.cfm-tagline { color: rgba(34,197,94,0.65); font-style: italic; }

/* ── Responsive ── */
@media (max-width: 900px) {
  .cf-main { gap: 2.5rem; padding: 0 2rem 3rem; }
  .cf-entry-rule, .cf-footer-rule { margin-left: 2rem; margin-right: 2rem; }
  .cft-section { padding: 2.5rem 2rem; }
  .cfst-inner, .cfm-bar { padding-left: 2rem; padding-right: 2rem; }
  .cf-brand-col { flex-direction: column; }
  .cf-brand-right { border-left: none; padding-left: 0; border-top: 1px solid rgba(34,197,94,0.15); padding-top: 1rem; align-items: flex-start; text-align: left; margin-left: 0; }
  .cf-specs { align-items: flex-start; }
  .cf-specs-label { text-align: left; }
  .cf-specs-list { align-items: flex-start; }
  .cf-specs-list li { text-align: left; }
  .cf-li-arrow { margin-left: 0; margin-right: 7px; }
}
@media (max-width: 768px) {
  .cf-entry-rule, .cf-footer-rule { margin-left: 1.5rem; margin-right: 1.5rem; }
  .cft-section { padding: 2rem 1.5rem; }
  .cft-bar-title { display: none; }
  .cfst-inner { padding: 0.5rem 1.5rem; justify-content: center; }
  .cfst-module { padding: 3px 0.65rem; }
  .cfst-pipe { display: none; }
  .cfm-bar { padding: 0.875rem 1.5rem; }
  .cf-main { padding: 0 1.5rem 2.5rem; }
}
@media (max-width: 480px) {
  .cft-body { padding: 1rem; }
  .cft-row { font-size: 11px; }
  .cft-bar { padding: 8px 12px; }
  .cfst-inner { gap: 4px 0; flex-wrap: wrap; }
  .cf-nav-item { font-size: 11px; padding: 4px 7px; }
  .cf-nav-sep { font-size: 13px; }
}

/* ── BACK TO TOP ── */
#back-top {
  position: fixed;
  bottom: 24px; right: 24px;
  width: 40px; height: 40px;
  background: var(--red);
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 18px;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 500;
  transition: background 0.2s, transform 0.2s;
}
#back-top:hover { background: #b91c1c; transform: translateY(-2px); }
#back-top.show { display: flex; }

/* ── DIVIDER ── */
.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: 0 2rem;
  position: relative;
  z-index: 2;
}

/* ── WRITEUP BODY ── */
.writeup-body {
  font-size: 15px;
  line-height: 1.9;
  color: var(--text);
}
.writeup-body p { margin-bottom: 1.2rem; color: var(--muted); }
.writeup-body h2 { font-size: 1.4rem; font-weight: 700; margin: 2rem 0 1rem; }
.writeup-body h3 { font-size: 1.15rem; font-weight: 700; margin: 1.5rem 0 0.75rem; }
.writeup-body code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  background: var(--tag-bg);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--red-light);
}
.writeup-body pre {
  background: #0d1117;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.25rem;
  overflow-x: auto;
  margin-bottom: 1.5rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: #3fb950;
  line-height: 1.6;
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  #live-terminal { display: none; }
  .ghost-col { display: none; }
}

/* Hamburger at 1100px: 11 nav items won't fit below this width */
@media (max-width: 1100px) {
  .nav-links-wrap { display: none; }
  .hamburger { display: flex; }
}

@media (max-width: 900px) {
  .cert-layout { grid-template-columns: 1fr; }
  .cert-nav {
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 0.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
  }
  .cert-nav-item { border-left: none; border-bottom: 2px solid transparent; padding: 8px 14px; border-radius: 4px; }
  .cert-nav-item.active { border-bottom-color: rgba(63,185,80,1); border-left: none; }
  .cert-detail-top { grid-template-columns: 1fr; }
  .cert-img-placeholder { width: 100%; }
}

@media (max-width: 768px) {
  .hero-wrap { grid-template-columns: 1fr; text-align: center; justify-items: center; padding: 2rem 1.5rem 3rem; }
  .hero-left { max-width: 100%; }
  .hero-right { order: -1; }
  .hero-bio { text-align: left; }
  .hero-actions { justify-content: center; }
  .profile-img { width: 160px; height: 160px; font-size: 2.5rem; }
  .services-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .writeup-card { grid-template-columns: 1fr; }
  .writeup-thumb { width: 100%; height: 60px; }
  .edu-card { grid-template-columns: 1fr; }
  .section-wrap { padding: 0 1.25rem; }
  /* Reduce section padding on tablet/mobile (overrides inline style) */
  #services, #certifications, #experience, #education,
  #volunteering, #projects-preview, #research,
  #writeups-preview, #contact { padding: 3.5rem 0 !important; }
  /* Card padding reduction */
  .service-card { padding: 20px; }
  .exp-card { padding: 20px; }
  .edu-card { padding: 20px; }
  /* Tighter section heading spacing */
  .section-head { margin-bottom: 2rem; }
  /* Services: 2-col grid on tablets before collapsing */
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  /* Services fully stacked on small tablets/phones */
  .services-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero-name { font-size: 2rem; }
  .section-head h2 { font-size: 1.6rem; }
  /* Further reduce section padding on phones */
  #services, #certifications, #experience, #education,
  #volunteering, #projects-preview, #research,
  #writeups-preview, #contact { padding: 3rem 0 !important; }
  /* Tighter card padding */
  .service-card { padding: 16px; }
  .exp-card { padding: 16px; }
  .edu-card { padding: 16px; }
  /* Section head */
  .section-head { margin-bottom: 1.5rem; }
  /* Contact wrap */
  .contact-wrap { padding: 0 1rem; }
  /* Experience meta — prevent overflow on narrow screens */
  .exp-meta { font-size: 12px; word-break: break-word; }
  /* Writeup card thumb */
  .writeup-thumb { height: 48px; }
}

/* ════════════════════════════════════════════════════════════════
   WRITEUPS — Complete Redesign
   ════════════════════════════════════════════════════════════════ */

/* ── Shared: Section Label ── */
.wu-section-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--red);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 10px;
}
.wu-count {
  color: var(--muted);
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
}
.wu-prompt { color: var(--red); }

/* ── Shared: Category & Difficulty Badges ── */
.wu-cat-badge {
  font-size: 10px;
  padding: 3px 10px;
  border-radius: 20px;
  background: rgba(124,58,237,0.15);
  color: #a78bfa;
  border: 1px solid rgba(124,58,237,0.3);
  font-family: 'JetBrains Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.wu-diff-badge {
  font-size: 10px;
  padding: 3px 10px;
  border-radius: 20px;
  font-family: 'JetBrains Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.wu-diff-beginner  { background: rgba(34,197,94,0.12);  color: #4ade80; border: 1px solid rgba(34,197,94,0.28); }
.wu-diff-intermediate { background: rgba(59,130,246,0.12); color: #60a5fa; border: 1px solid rgba(59,130,246,0.28); }
.wu-diff-advanced  { background: rgba(234,179,8,0.12); color: #facc15; border: 1px solid rgba(234,179,8,0.28); }
.wu-diff-expert    { background: rgba(220,38,38,0.12); color: #ef4444; border: 1px solid rgba(220,38,38,0.28); }
.wu-feat-badge {
  font-size: 10px;
  padding: 3px 10px;
  border-radius: 20px;
  background: rgba(251,191,36,0.12);
  color: #fbbf24;
  border: 1px solid rgba(251,191,36,0.28);
  font-family: 'JetBrains Mono', monospace;
}

/* ── Stretched Link (full-card click) ── */
.wu-stretched-link {
  position: absolute;
  inset: 0;
  z-index: 0;
}
/* Ensure interactive child elements sit above the link */
.wu-card .pill,
.wu-card button,
.wu-featured-card .pill {
  position: relative;
  z-index: 2;
}

/* ── Cover Gradients ── */
.wu-g1 { background: linear-gradient(135deg, #160010 0%, #3d0826 60%, #1a0a1a 100%); }
.wu-g2 { background: linear-gradient(135deg, #010a2a 0%, #0d1a4d 60%, #010f2a 100%); }
.wu-g3 { background: linear-gradient(135deg, #001a08 0%, #0a3d1a 60%, #001a10 100%); }
.wu-g4 { background: linear-gradient(135deg, #1a1400 0%, #3d3000 60%, #1a1800 100%); }
.wu-g5 { background: linear-gradient(135deg, #1a0028 0%, #3d0060 60%, #1a002a 100%); }

.wu-cover-ghost-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 20px;
  font-weight: 700;
  color: rgba(255,255,255,0.1);
  text-align: center;
  line-height: 1.4;
  padding: 1rem;
  text-shadow: 0 0 30px rgba(255,255,255,0.05);
  user-select: none;
}

/* ═══════════════════════════
   LIST PAGE
   ═══════════════════════════ */

.wu-list-header {
  padding: 4rem 0 2rem;
  position: relative;
  z-index: 2;
}

.wu-list-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.wu-breadcrumb {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.wu-list-title {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.wu-list-title span { color: var(--red); }

.wu-list-sub {
  color: var(--muted);
  font-size: 15px;
  max-width: 520px;
  line-height: 1.7;
}

/* Search */
.wu-search-form { flex-shrink: 0; }
.wu-search-box {
  display: flex;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0 12px;
  gap: 8px;
  transition: border-color 0.2s;
  min-width: 260px;
}
.wu-search-box:focus-within { border-color: var(--red); }
.wu-search-icon { color: var(--muted); flex-shrink: 0; }
.wu-search-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 14px;
  font-family: 'Space Grotesk', sans-serif;
  padding: 10px 0;
}
.wu-search-input::placeholder { color: var(--muted); opacity: 0.6; }
.wu-search-clear {
  color: var(--muted);
  font-size: 12px;
  text-decoration: none;
  padding: 2px 4px;
  border-radius: 2px;
  transition: color 0.2s;
}
.wu-search-clear:hover { color: var(--red); }

/* Category tabs */
.wu-cat-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 1rem;
}
.wu-cat-tab {
  font-size: 12px;
  font-family: 'JetBrains Mono', monospace;
  padding: 5px 14px;
  border-radius: 20px;
  border: 1px solid var(--border);
  color: var(--muted);
  text-decoration: none;
  transition: all 0.2s;
  white-space: nowrap;
}
.wu-cat-tab:hover { border-color: var(--red); color: var(--text); }
.wu-cat-tab.active { background: rgba(220,38,38,0.12); border-color: var(--red); color: var(--red); }

/* Tag filter */
.wu-tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  margin-bottom: 1rem;
}
.wu-filter-label {
  font-size: 11px;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  white-space: nowrap;
}

/* Featured grid */
.wu-featured-section { padding: 1.5rem 0 0; position: relative; z-index: 2; }
.wu-featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.wu-featured-card {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  height: 300px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
}
.wu-featured-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.4), 0 0 0 1px rgba(220,38,38,0.2);
}
.wu-featured-cover {
  width: 100%;
  height: 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.wu-featured-cover img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}
.wu-featured-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13,17,23,1) 0%, rgba(13,17,23,0.6) 40%, rgba(13,17,23,0.1) 100%);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  z-index: 1;
}
.wu-featured-badges { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 8px; }
.wu-featured-title {
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 6px;
  color: var(--text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.wu-featured-excerpt {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.55;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.wu-featured-footer { display: flex; justify-content: space-between; align-items: center; }
.wu-meta-sm { font-size: 11px; color: var(--muted); font-family: 'JetBrains Mono', monospace; }
.wu-read-arrow { font-size: 12px; color: var(--red); font-family: 'JetBrains Mono', monospace; font-weight: 600; }

/* All writeups grid */
.wu-all-section { padding: 2rem 0 4rem; position: relative; z-index: 2; }
.wu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

/* Card */
.wu-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  position: relative;
  transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
}
.wu-card:hover {
  border-color: rgba(220,38,38,0.4);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.3), 0 0 0 1px rgba(220,38,38,0.12);
}
.wu-card-cover {
  position: relative;
  height: 150px;
  overflow: hidden;
}
.wu-card-cover img { width: 100%; height: 100%; object-fit: cover; }
.wu-card-gradient {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.wu-card-cover-badge {
  position: absolute;
  bottom: 8px;
  left: 10px;
  z-index: 2;
}
.wu-featured-star {
  position: absolute;
  top: 8px;
  right: 10px;
  z-index: 2;
  color: #fbbf24;
  font-size: 14px;
  text-shadow: 0 0 8px rgba(251,191,36,0.6);
}
.wu-card-body { padding: 1.1rem 1.1rem 1.25rem; }
.wu-card-tags { display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 9px; position: relative; z-index: 2; }
.wu-card-title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 7px;
  color: var(--text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.wu-card-excerpt {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.wu-card-meta {
  font-size: 11px;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  opacity: 0.7;
  display: flex;
  align-items: center;
  gap: 5px;
}
.wu-dot-sep { opacity: 0.5; }

/* Empty state */
.wu-empty-state {
  text-align: center;
  padding: 4rem 0;
  color: var(--muted);
}
.wu-empty-code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 2.5rem;
  color: var(--red);
  opacity: 0.4;
  margin-bottom: 1rem;
}
.wu-empty-title { font-size: 1.1rem; font-weight: 600; margin-bottom: 0.5rem; color: var(--text); }
.wu-empty-sub { font-size: 14px; }

/* ═══════════════════════════
   DETAIL PAGE
   ═══════════════════════════ */

/* Reading Progress Bar */
.wu-progress-bar {
  position: fixed;
  top: 64px;
  left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--red) 0%, #7c3aed 100%);
  width: 0%;
  z-index: 1001;
  transition: width 0.08s linear;
  box-shadow: 0 0 8px rgba(220,38,38,0.5);
}

.wu-detail-wrap { padding-bottom: 4rem; }
.wu-detail-nav { padding-top: 1.5rem; }

/* Hero banner */
.wu-hero-section-wrap { padding-top: 0.5rem; }
.wu-detail-hero {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  min-height: 460px;
  display: flex;
  align-items: flex-end;
}
.wu-hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 15% 40%, rgba(124,58,237,0.28) 0%, transparent 55%),
    radial-gradient(ellipse at 85% 15%, rgba(220,38,38,0.32) 0%, transparent 55%),
    radial-gradient(ellipse at 50% 90%, rgba(0,0,0,0.6) 0%, transparent 60%),
    linear-gradient(135deg, #080c12 0%, #0d1117 60%, #0a0f1a 100%);
}
.wu-hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(124,58,237,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124,58,237,0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.wu-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(13,17,23,1) 0%,
    rgba(13,17,23,0.85) 30%,
    rgba(13,17,23,0.15) 70%,
    transparent 100%
  );
}
.wu-hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.25;
}
.wu-hero-inner {
  position: relative;
  z-index: 1;
  padding: 2.5rem 3rem;
  width: 100%;
}
.wu-hero-badges { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 1rem; }
.wu-hero-title {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 0.75rem;
  color: var(--text);
}
.wu-hero-excerpt {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.75;
  margin-bottom: 1.25rem;
  max-width: 720px;
}
.wu-hero-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 1rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--muted);
}
.wu-hero-meta-item {
  display: flex;
  align-items: center;
  gap: 5px;
}
.wu-hero-sep { opacity: 0.4; }
.wu-hero-tags { display: flex; flex-wrap: wrap; gap: 6px; }

/* Content layout (TOC + article) */
.wu-content-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 3rem;
  padding-top: 2.5rem;
  padding-bottom: 2rem;
  align-items: start;
}

/* TOC sidebar */
.wu-toc {
  position: sticky;
  top: calc(64px + 2rem);
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 2px solid rgba(220,38,38,0.5);
  border-radius: 6px;
  padding: 1.1rem;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
}
.wu-toc::-webkit-scrollbar { width: 3px; }
.wu-toc::-webkit-scrollbar-thumb { background: var(--border); }
.wu-toc-header { margin-bottom: 1rem; }
.wu-toc-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--red);
  text-transform: uppercase;
  letter-spacing: 1.2px;
  display: block;
}
.wu-toc-loading {
  font-size: 12px;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
}
#wu-toc-nav a {
  display: block;
  padding: 4px 8px;
  color: var(--muted);
  text-decoration: none;
  font-size: 12px;
  line-height: 1.5;
  border-left: 2px solid transparent;
  margin-left: -2px;
  border-radius: 0 3px 3px 0;
  transition: all 0.18s ease;
  font-family: 'Space Grotesk', sans-serif;
}
#wu-toc-nav a:hover,
#wu-toc-nav a.toc-active {
  color: var(--text);
  border-left-color: var(--red);
  background: rgba(220,38,38,0.06);
  padding-left: 12px;
}
#wu-toc-nav a.toc-h3 { padding-left: 16px; font-size: 11px; opacity: 0.8; }
#wu-toc-nav a.toc-h3:hover,
#wu-toc-nav a.toc-h3.toc-active { padding-left: 20px; opacity: 1; }

/* Article */
.wu-article { min-width: 0; }

/* No content state */
.wu-no-content {
  text-align: center;
  padding: 3rem 0;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
}
.wu-no-content-icon { font-size: 2rem; color: var(--red); opacity: 0.4; margin-bottom: 0.75rem; }
.wu-no-content-sub { font-size: 12px; margin-top: 0.5rem; }

/* Article footer */
.wu-article-footer {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.wu-article-footer-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.wu-article-footer-tags .pill { text-decoration: none; position: relative; z-index: 1; }

/* Prev/Next nav */
.wu-prev-next {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  padding-top: 1rem;
  padding-bottom: 2rem;
}
.wu-nav-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.1rem 1.25rem;
  text-decoration: none;
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.wu-nav-card:hover { border-color: var(--red); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(220,38,38,0.1); }
.wu-nav-prev { text-align: left; }
.wu-nav-next { text-align: right; }
.wu-nav-dir { font-size: 11px; color: var(--red); font-family: 'JetBrains Mono', monospace; }
.wu-nav-title { font-size: 14px; font-weight: 600; color: var(--text); line-height: 1.35; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* Related section */
.wu-related-section { padding-bottom: 2rem; }
.wu-related-grid { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }

/* ═══════════════════════════
   ENHANCED WRITEUP BODY
   (overrides existing styles)
   ═══════════════════════════ */

.writeup-body {
  font-size: 15px;
  line-height: 1.9;
  color: var(--text);
}
.writeup-body > *:first-child { margin-top: 0; }

.writeup-body p { margin-bottom: 1.25rem; color: var(--muted); }

.writeup-body h2 {
  font-size: 1.45rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem;
  color: var(--text);
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
  scroll-margin-top: 90px;
}
.writeup-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 2rem 0 0.75rem;
  color: var(--text);
  scroll-margin-top: 90px;
}
.writeup-body h4 {
  font-size: 1rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
  color: var(--red-light);
  font-family: 'JetBrains Mono', monospace;
}
.writeup-body h2 .headerlink,
.writeup-body h3 .headerlink { display: none; }

.writeup-body code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  background: var(--tag-bg);
  padding: 2px 7px;
  border-radius: 4px;
  color: var(--red-light);
  border: 1px solid rgba(220,38,38,0.15);
}

.writeup-body pre { margin: 0 0 1.5rem; border-radius: 0 0 8px 8px; }
.writeup-body pre code {
  background: none;
  border: none;
  padding: 0;
  color: inherit;
  font-size: 13px;
  line-height: 1.65;
}

.writeup-body blockquote {
  border-left: 3px solid var(--red);
  margin: 1.5rem 0;
  padding: 0.9rem 1.25rem;
  background: rgba(220,38,38,0.04);
  border-radius: 0 6px 6px 0;
}
.writeup-body blockquote p { color: var(--muted); font-style: italic; margin: 0; }
.writeup-body blockquote p strong { color: var(--text); font-style: normal; }

.writeup-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 14px;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.writeup-body th {
  background: rgba(220,38,38,0.06);
  border: 1px solid var(--border);
  padding: 10px 14px;
  text-align: left;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--red);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.writeup-body td {
  border: 1px solid var(--border);
  padding: 9px 14px;
  color: var(--muted);
  vertical-align: top;
}
.writeup-body tr:nth-child(even) td { background: rgba(255,255,255,0.015); }

.writeup-body ul,
.writeup-body ol {
  padding-left: 1.5rem;
  margin: 0.5rem 0 1.25rem;
}
.writeup-body li { margin-bottom: 0.35rem; font-size: 15px; line-height: 1.75; color: var(--muted); }
.writeup-body ul > li::marker { color: var(--red); }
.writeup-body ol > li::marker { color: var(--red); font-family: 'JetBrains Mono', monospace; font-size: 13px; }

.writeup-body a { color: var(--red-light); text-decoration: underline; text-underline-offset: 3px; }
.writeup-body a:hover { color: var(--red); }

.writeup-body img {
  max-width: 100%;
  border-radius: 8px;
  border: 1px solid var(--border);
  margin: 1.5rem 0;
  display: block;
}
.writeup-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

/* ── Terminal Code Block (injected by JS) ── */
.wu-terminal {
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(63,185,80,0.18);
  margin-bottom: 1.5rem;
  box-shadow: 0 4px 20px rgba(0,0,0,0.35), 0 0 0 1px rgba(63,185,80,0.08);
}
.wu-term-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 14px;
  background: #1c2128;
  border-bottom: 1px solid rgba(63,185,80,0.12);
  user-select: none;
}
.wu-term-dot { width: 12px; height: 12px; border-radius: 50%; flex-shrink: 0; }
.wu-term-dot.r { background: #ff5f57; }
.wu-term-dot.y { background: #ffbd2e; }
.wu-term-dot.g { background: #28c840; }
.wu-term-prompt {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: #3fb950;
  margin-left: 6px;
  flex: 1;
}
.wu-term-lang {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--muted);
  opacity: 0.6;
  margin-right: 8px;
  text-transform: uppercase;
}
.wu-copy-btn {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--muted);
  background: none;
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 3px 9px;
  cursor: pointer;
  transition: all 0.2s;
  flex-shrink: 0;
}
.wu-copy-btn:hover { color: var(--text); border-color: rgba(255,255,255,0.3); }
.wu-copy-btn.wu-copied { color: #3fb950; border-color: #3fb950; }

.wu-terminal pre {
  margin: 0;
  padding: 1.1rem 1.25rem;
  background: #0a0e15;
  overflow-x: auto;
  border-radius: 0;
  border: none;
  line-height: 1.6;
}
.wu-terminal pre code { font-size: 13px; }

/* ── Responsive overrides ── */
@media (max-width: 1024px) {
  .wu-featured-grid { grid-template-columns: repeat(2, 1fr); }
  .wu-featured-grid > *:nth-child(3) { display: none; }
}

@media (max-width: 900px) {
  .wu-content-layout { grid-template-columns: 1fr; }
  .wu-toc { display: none; }
  .wu-hero-inner { padding: 2rem 1.5rem; }
  .wu-detail-hero { min-height: 380px; }
}

@media (max-width: 768px) {
  .wu-list-top { flex-direction: column; }
  .wu-search-box { min-width: 100%; }
  .wu-featured-grid { grid-template-columns: 1fr; }
  .wu-featured-grid > *:nth-child(2),
  .wu-featured-grid > *:nth-child(3) { display: none; }
  .wu-featured-card { height: 250px; }
  .wu-grid { grid-template-columns: 1fr; }
  .wu-prev-next { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .wu-hero-title { font-size: 1.35rem; }
  .wu-hero-inner { padding: 1.5rem 1.25rem; }
}

/* ════════════════════════════════════════════════════════════════
   PROJECTS PAGE — GitHub-powered showcase
   ════════════════════════════════════════════════════════════════ */

/* CSS-only entrance animation — no JS required */
@keyframes proj-card-enter {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes proj-fade-in {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

.proj-section { position: relative; z-index: 2; }

/* ── Page Header ── */
.proj-page-header { margin-bottom: 3rem; }

.proj-page-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 0.85rem;
}
.proj-page-title span {
  background: linear-gradient(135deg, #7c3aed 0%, #a78bfa 60%, #c4b5fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.proj-page-subtitle {
  color: var(--muted);
  font-size: 15px;
  max-width: 640px;
  line-height: 1.75;
}

/* ── Controls ── */
.proj-controls {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.proj-search-form { }

.proj-search-box {
  display: flex;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0 14px;
  gap: 10px;
  max-width: 460px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.proj-search-box:focus-within {
  border-color: rgba(124,58,237,0.55);
  box-shadow: 0 0 0 3px rgba(124,58,237,0.08);
}

.proj-search-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 14px;
  font-family: 'Space Grotesk', sans-serif;
  padding: 11px 0;
}
.proj-search-input::placeholder { color: var(--muted); opacity: 0.55; }

/* Language filter tabs */
.proj-lang-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.proj-lang-tab {
  font-size: 12px;
  font-family: 'JetBrains Mono', monospace;
  padding: 5px 15px;
  border-radius: 20px;
  border: 1px solid var(--border);
  color: var(--muted);
  text-decoration: none;
  transition: all 0.2s;
  white-space: nowrap;
  background: transparent;
}
.proj-lang-tab:hover {
  border-color: rgba(124,58,237,0.5);
  color: #a78bfa;
  background: rgba(124,58,237,0.05);
}
.proj-lang-tab.active {
  background: rgba(124,58,237,0.12);
  border-color: rgba(124,58,237,0.5);
  color: #a78bfa;
}

/* ── Projects Grid ── */
.proj-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

/* ── Project Card ── */
.proj-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
  /* CSS-only staggered entrance — always visible, no JS needed */
  animation: proj-card-enter 0.55s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.proj-card:nth-child(1) { animation-delay: 0ms; }
.proj-card:nth-child(2) { animation-delay: 80ms; }
.proj-card:nth-child(3) { animation-delay: 160ms; }
.proj-card:nth-child(4) { animation-delay: 240ms; }
.proj-card:nth-child(5) { animation-delay: 320ms; }
.proj-card:nth-child(6) { animation-delay: 400ms; }
.proj-card:nth-child(7) { animation-delay: 480ms; }
.proj-card:nth-child(8) { animation-delay: 560ms; }
.proj-card:nth-child(9) { animation-delay: 640ms; }

.proj-card:hover {
  border-color: rgba(124,58,237,0.45);
  transform: translateY(-6px);
  box-shadow:
    0 20px 48px rgba(0,0,0,0.38),
    0 0 0 1px rgba(124,58,237,0.12),
    0 0 28px rgba(124,58,237,0.08);
}

/* Animated gradient top accent bar */
.proj-card-accent {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, #7c3aed, #a78bfa, #60a5fa, #dc2626, #7c3aed);
  background-size: 300% 100%;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}
.proj-card:hover .proj-card-accent {
  transform: scaleX(1);
  animation: proj-accent-slide 4s linear infinite;
}
@keyframes proj-accent-slide {
  0%   { background-position: 0% 0%; }
  100% { background-position: 300% 0%; }
}

/* Subtle inner glow on hover */
.proj-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 12px;
  background: radial-gradient(ellipse at 50% 0%, rgba(124,58,237,0.06) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}
.proj-card:hover::after { opacity: 1; }

.proj-card-inner { padding: 1.4rem 1.5rem 1.3rem; display: flex; flex-direction: column; height: 100%; }

/* Card header */
.proj-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 0.85rem;
}

.proj-card-icon {
  color: #8b949e;
  flex-shrink: 0;
  transition: color 0.2s;
}
.proj-card:hover .proj-card-icon { color: #a78bfa; }

.proj-card-name-wrap {
  display: flex;
  align-items: center;
  gap: 7px;
  flex: 1;
  min-width: 0;
}

.proj-card-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: 0.3px;
}

.proj-demo-badge {
  font-size: 9px;
  padding: 2px 7px;
  border-radius: 20px;
  background: rgba(251,191,36,0.1);
  color: #fbbf24;
  border: 1px solid rgba(251,191,36,0.28);
  font-family: 'JetBrains Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  flex-shrink: 0;
}

/* Description */
.proj-card-desc {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.68;
  margin-bottom: 1rem;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Topics */
.proj-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 1rem;
}

.proj-topic-tag {
  font-size: 10px;
  padding: 2px 9px;
  border-radius: 20px;
  background: rgba(124,58,237,0.08);
  color: #a78bfa;
  border: 1px solid rgba(124,58,237,0.2);
  font-family: 'JetBrains Mono', monospace;
  white-space: nowrap;
  transition: all 0.2s;
}
.proj-topic-tag:hover, .proj-card:hover .proj-topic-tag {
  background: rgba(124,58,237,0.15);
  border-color: rgba(124,58,237,0.35);
}
.proj-topic-more {
  background: transparent;
  color: var(--muted);
  border-color: var(--border);
}

/* Meta: language + stats */
.proj-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  gap: 0.5rem;
}

.proj-lang-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.proj-lang-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  flex-shrink: 0;
}

.proj-lang-label {
  font-size: 12px;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
}

.proj-meta-stats {
  display: flex;
  align-items: center;
  gap: 10px;
}

.proj-stat {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
}

/* Card footer */
.proj-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.proj-view-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
  color: #a78bfa;
  text-decoration: none;
  padding: 6px 14px;
  border-radius: 6px;
  border: 1px solid rgba(124,58,237,0.3);
  background: rgba(124,58,237,0.07);
  transition: all 0.2s ease;
  white-space: nowrap;
}
.proj-view-btn:hover {
  background: rgba(124,58,237,0.18);
  border-color: rgba(124,58,237,0.6);
  color: #c4b5fd;
  box-shadow: 0 0 14px rgba(124,58,237,0.2);
  transform: translateY(-1px);
}

.proj-view-btn--disabled {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-family: 'JetBrains Mono', monospace;
  color: var(--muted);
  opacity: 0.45;
  padding: 6px 0;
  cursor: default;
}

.proj-updated-date {
  font-size: 10px;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  opacity: 0.55;
  white-space: nowrap;
}

/* ── Responsive ── */
@media (max-width: 1100px) {
  .proj-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .proj-grid { grid-template-columns: 1fr; }
  .proj-page-title { font-size: 1.75rem; }
  .proj-search-box { max-width: 100%; }
}

/* ════════════════════════════════════════════════════════════════
   HOME PAGE — Projects preview section
   ════════════════════════════════════════════════════════════════ */

/* Reuse .proj-grid / .proj-card for the home preview.
   The cards here need the same entrance animation but can be
   slightly more compact. No overrides needed — proj-card already
   handles itself. The section header uses standard .section-head. */

.home-proj-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

/* Compact card variant for home page */
.home-proj-card {
  position: relative;
  background: var(--surface);
  border: 1px solid rgba(63,185,80,0.35);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
  animation: proj-card-enter 0.55s cubic-bezier(0.16, 1, 0.3, 1) both;
  display: flex;
  flex-direction: column;
}
.home-proj-card:nth-child(1) { animation-delay: 0ms; }
.home-proj-card:nth-child(2) { animation-delay: 80ms; }
.home-proj-card:nth-child(3) { animation-delay: 160ms; }
.home-proj-card:nth-child(4) { animation-delay: 240ms; }
.home-proj-card:nth-child(5) { animation-delay: 320ms; }
.home-proj-card:nth-child(6) { animation-delay: 400ms; }

.home-proj-card:hover {
  border-color: rgba(63,185,80,0.55);
  transform: translateY(-5px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.35), 0 0 0 1px rgba(63,185,80,0.1), 0 0 24px rgba(63,185,80,0.1);
}

/* Animated top bar */
.home-proj-card-accent {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, rgba(63,185,80,0.2), rgba(63,185,80,1), #4ade80, rgba(63,185,80,1), rgba(63,185,80,0.2));
  background-size: 300% 100%;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}
.home-proj-card:hover .home-proj-card-accent {
  transform: scaleX(1);
  animation: proj-accent-slide 4s linear infinite;
}

.home-proj-card-inner { padding: 1.25rem 1.35rem 1.15rem; flex: 1; display: flex; flex-direction: column; }

.home-proj-card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 0.7rem;
}
.home-proj-card-icon { color: #8b949e; flex-shrink: 0; transition: color 0.2s; }
.home-proj-card:hover .home-proj-card-icon { color: rgba(63,185,80,1); }

.home-proj-card-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.home-proj-card-desc {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.65;
  flex: 1;
  margin-bottom: 0.85rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.home-proj-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border);
}

.home-proj-lang {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
}

.home-proj-stars {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
}

@media (max-width: 1024px) {
  .home-proj-grid { grid-template-columns: repeat(2, 1fr); }
  .home-proj-card:nth-child(5),
  .home-proj-card:nth-child(6) { display: none; }
}
@media (max-width: 640px) {
  .home-proj-grid { grid-template-columns: 1fr; }
  .home-proj-card:nth-child(3),
  .home-proj-card:nth-child(4),
  .home-proj-card:nth-child(5),
  .home-proj-card:nth-child(6) { display: none; }
}

/* ════════════════════════════════════════════════════════════════
   RESEARCH & PUBLICATIONS
   ════════════════════════════════════════════════════════════════ */

.research-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.research-card {
  background: var(--surface);
  border: 1px solid rgba(63,185,80,0.35);
  border-radius: 8px;
  padding: 1.5rem;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
  position: relative;
  overflow: hidden;
}

/* Green left accent bar */
.research-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: rgba(63,185,80,1);
  border-radius: 8px 0 0 8px;
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.research-card:hover {
  border-color: rgba(63,185,80,0.6);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(63,185,80,0.08);
}

.research-card:hover::before {
  transform: scaleY(1);
}

/* Top row: certificate thumb + paper info */
.research-card-top {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 1.25rem;
  align-items: flex-start;
  margin-bottom: 1rem;
}

/* Certificate image */
.research-cert-wrap {
  flex-shrink: 0;
}

.research-cert-img {
  width: 110px;
  height: 78px;
  object-fit: cover;
  border-radius: 5px;
  border: 1px solid var(--border);
  display: block;
}

.research-cert-placeholder {
  width: 110px;
  height: 78px;
  background: var(--tag-bg);
  border: 1px dashed var(--border);
  border-radius: 5px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  color: var(--muted);
  font-size: 10px;
  font-family: 'JetBrains Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Paper title, authors, venue */
.research-title {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 0.35rem;
  color: var(--text);
}

.research-authors {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 0.4rem;
  font-family: 'JetBrains Mono', monospace;
}

.research-venue {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--red-light);
  font-family: 'JetBrains Mono', monospace;
}

/* Abstract excerpt */
.research-abstract {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 0.9rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Tags row */
.research-tags {
  margin-bottom: 1rem;
}

/* Footer: read link */
.research-card-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  border-top: 1px solid var(--border);
  padding-top: 0.85rem;
}

.research-read-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 600;
  color: var(--red);
  text-decoration: none;
  font-family: 'JetBrains Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transition: color 0.2s, gap 0.2s;
}

.research-read-link:hover {
  color: var(--red-light);
  gap: 8px;
}

@media (max-width: 600px) {
  .research-card-top {
    grid-template-columns: 1fr;
  }
  .research-cert-img,
  .research-cert-placeholder {
    width: 100%;
    height: 120px;
  }
}

/* ════════════════════════════════════════════════════════════════
   RESEARCH PUBLICATIONS — DEDICATED LIST PAGE  (rp-*)
   ════════════════════════════════════════════════════════════════ */

/* ── Page header ── */
.rp-list-header {
  padding: 4rem 0 2rem;
  position: relative;
  z-index: 2;
}

.rp-list-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 1.75rem;
}

.rp-list-title {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  margin: 0.3rem 0 0.6rem;
}
.rp-list-title span { color: var(--red); }

.rp-list-sub {
  color: var(--muted);
  font-size: 14px;
  max-width: 560px;
  line-height: 1.6;
  margin-bottom: 0.9rem;
}

/* Stats row (n papers · n domains) */
.rp-stats-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--muted);
}
.rp-stat-num { color: var(--red); font-weight: 700; }
.rp-stat-sep { color: var(--border); }

/* ── Highlighted section ── */
.rp-highlight-section {
  padding: 1.5rem 0 0;
  position: relative;
  z-index: 2;
}

.rp-highlight-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.rp-highlight-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: grid;
  grid-template-columns: 220px 1fr;
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s;
  position: relative;
}

.rp-highlight-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--red), #7c3aed, var(--red));
  background-size: 200% 100%;
  animation: rp-shimmer 4s linear infinite;
}

@keyframes rp-shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.rp-highlight-card:hover {
  border-color: rgba(220,38,38,0.45);
  box-shadow: 0 10px 32px rgba(220,38,38,0.1);
}

/* Visual panel (left) */
.rp-hl-visual {
  position: relative;
  background: #0a0f15;
  display: flex;
  align-items: center;
  justify-content: center;
  border-right: 1px solid var(--border);
  min-height: 240px;
  overflow: hidden;
}

.rp-hl-cert-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.rp-hl-cert-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: #2d3748;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 10px,
    rgba(255,255,255,0.015) 10px,
    rgba(255,255,255,0.015) 20px
  );
}

.rp-hl-venue-badge {
  position: absolute;
  bottom: 10px;
  left: 10px;
  right: 10px;
  background: rgba(220,38,38,0.9);
  color: #fff;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 8px;
  border-radius: 4px;
  text-align: center;
  backdrop-filter: blur(4px);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

/* Info panel (right) */
.rp-hl-info {
  padding: 1.6rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.rp-hl-index {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--red);
  letter-spacing: 0.12em;
  margin-bottom: 0.55rem;
}

.rp-hl-title {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 0.65rem;
  color: var(--text);
}

.rp-hl-authors {
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11.5px;
  color: var(--muted);
  margin-bottom: 0.3rem;
}

.rp-hl-meta {
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 0.9rem;
}

.rp-hl-abstract {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 0.9rem;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.rp-hl-tags {
  margin-bottom: 1.1rem;
}

.rp-read-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  align-self: flex-start;
  background: var(--red);
  color: #fff;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 8px 16px;
  border-radius: 5px;
  text-decoration: none;
  transition: background 0.2s, gap 0.2s, box-shadow 0.2s;
  margin-top: auto;
}

.rp-read-btn:hover {
  background: var(--red-light);
  gap: 10px;
  box-shadow: 0 4px 14px rgba(220,38,38,0.35);
}

/* ── All publications grid ── */
.rp-all-section {
  padding: 2rem 0 4rem;
  position: relative;
  z-index: 2;
}

.rp-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

/* ── Publication card ── */
.rp-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
  position: relative;
}

.rp-card:hover {
  border-color: rgba(220,38,38,0.4);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(220,38,38,0.09);
}

/* Card header: icon + venue + year chips */
.rp-card-header {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0.85rem 1rem 0;
  flex-wrap: nowrap;
  overflow: hidden;
}

.rp-card-icon {
  color: var(--muted);
  flex-shrink: 0;
  transition: color 0.2s;
}
.rp-card:hover .rp-card-icon { color: var(--red); }

.rp-venue-chip {
  flex: 1;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--red);
  background: rgba(220,38,38,0.1);
  border: 1px solid rgba(220,38,38,0.25);
  border-radius: 3px;
  padding: 2px 6px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  min-width: 0;
}

.rp-year-chip {
  flex-shrink: 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--muted);
  background: var(--tag-bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 2px 6px;
}

/* Card body */
.rp-card-body {
  padding: 0.9rem 1rem 0.75rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.rp-card-title {
  font-size: 14px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--text);
  margin-bottom: 0.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.rp-card-authors {
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 0.65rem;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.rp-card-abstract {
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.65;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 0.75rem;
}

.rp-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  position: relative;
  z-index: 2;
}

/* Card footer */
.rp-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--border);
}

.rp-card-cert {
  display: flex;
  align-items: center;
  gap: 6px;
}

.rp-card-cert-thumb {
  width: 32px;
  height: 22px;
  object-fit: cover;
  border-radius: 3px;
  border: 1px solid var(--border);
}

.rp-card-cert-icon {
  width: 32px;
  height: 22px;
  background: var(--tag-bg);
  border: 1px dashed var(--border);
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
}

.rp-card-cert-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ── Responsive breakpoints (highlight card + layout only) ── */
@media (max-width: 1024px) {
  .rp-highlight-card { grid-template-columns: 180px 1fr; }
}

@media (max-width: 768px) {
  .rp-list-top { flex-direction: column; }
  .rp-highlight-card { grid-template-columns: 1fr; }
  .rp-hl-visual { min-height: 160px; border-right: none; border-bottom: 1px solid var(--border); }
  .rp-hl-cert-img { width: 100%; height: 160px; object-fit: cover; }
}

@media (max-width: 640px) {
  .rp-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .rp-list-header { padding: 2.5rem 0 1.5rem; }
  .rp-hl-visual { min-height: 130px !important; }
}

/* ════════════════════════════════════════════════════════════════
   UNIFIED PUBLICATION CARD  (rp-pub-*)
   Used by both the highlighted list and the 2-column grid.
   ════════════════════════════════════════════════════════════════ */

.rp-pub-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* Base card — horizontal layout: image panel left, info panel right */
.rp-pub-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: grid;
  grid-template-columns: 190px 1fr;
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s;
  position: relative;
}

.rp-pub-card:hover {
  border-color: rgba(220,38,38,0.4);
  box-shadow: 0 8px 28px rgba(220,38,38,0.09);
}

/* Featured variant — wider image panel + animated top border */
.rp-pub-card--featured {
  grid-template-columns: 240px 1fr;
}

.rp-pub-card--featured::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--red), #7c3aed, var(--red));
  background-size: 200% 100%;
  animation: rp-shimmer 4s linear infinite;
}

.rp-pub-card--featured:hover {
  border-color: rgba(220,38,38,0.45);
  box-shadow: 0 10px 32px rgba(220,38,38,0.1);
}

/* ── Visual (left) panel ── */
.rp-pub-visual {
  position: relative;
  background: #0a0f15;
  display: flex;
  align-items: center;
  justify-content: center;
  border-right: 1px solid var(--border);
  min-height: 220px;
  overflow: hidden;
}

.rp-pub-cert-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  cursor: pointer;
  transition: transform 0.35s ease, opacity 0.35s ease;
}

.rp-pub-visual:hover .rp-pub-cert-img {
  transform: scale(1.04);
  opacity: 0.88;
}

.rp-pub-cert-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: #2d3748;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  width: 100%;
  height: 100%;
  min-height: 220px;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 10px,
    rgba(255,255,255,0.015) 10px,
    rgba(255,255,255,0.015) 20px
  );
}

/* Zoom hint — fades in on hover over the visual panel */
.rp-cert-zoom-hint {
  position: absolute;
  top: 8px; right: 8px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.06em;
  padding: 4px 8px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
  opacity: 0;
  transition: opacity 0.2s ease;
  backdrop-filter: blur(4px);
  pointer-events: none;
}

.rp-pub-visual:hover .rp-cert-zoom-hint {
  opacity: 1;
}

/* Venue badge pinned to bottom of visual panel */
.rp-pub-venue-badge {
  position: absolute;
  bottom: 10px;
  left: 10px;
  right: 10px;
  background: rgba(220,38,38,0.9);
  color: #fff;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 8px;
  border-radius: 4px;
  text-align: center;
  backdrop-filter: blur(4px);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

/* ── Info (right) panel ── */
.rp-pub-info {
  padding: 1.5rem 1.75rem;
  display: flex;
  flex-direction: column;
}

.rp-pub-index {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--red);
  letter-spacing: 0.12em;
  margin-bottom: 0.5rem;
}

.rp-pub-title {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 0.55rem;
  color: var(--text);
}

.rp-pub-authors {
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11.5px;
  color: var(--muted);
  margin-bottom: 0.3rem;
}

.rp-pub-meta {
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 0.85rem;
}

.rp-pub-abstract {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 0.85rem;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.rp-pub-abstract--long {
  -webkit-line-clamp: 4;
}

.rp-pub-tags {
  margin-bottom: 1rem;
}

/* Outline variant of the read button */
.rp-read-btn--outline {
  background: transparent;
  color: var(--red);
  border: 1px solid rgba(220,38,38,0.5);
  margin-top: auto;
}

.rp-read-btn--outline:hover {
  background: rgba(220,38,38,0.1);
  box-shadow: none;
  gap: 10px;
}

/* ── rp-pub-* responsive (after base styles so cascade is correct) ── */
@media (max-width: 768px) {
  .rp-pub-card { grid-template-columns: 1fr; }
  .rp-pub-card--featured { grid-template-columns: 1fr; }
  .rp-pub-visual { min-height: 180px; border-right: none; border-bottom: 1px solid var(--border); }
  .rp-pub-cert-img { height: 180px; object-fit: cover; }
}

@media (max-width: 480px) {
  .rp-pub-info { padding: 1rem 1.25rem; }
  .rp-pub-title { font-size: 0.95rem; }
  .rp-pub-visual { min-height: 140px; }
  .rp-pub-cert-placeholder { min-height: 140px; }
}

/* ════════════════════════════════════════════════════════════════
   CERTIFICATE LIGHTBOX  (rp-lb-*)
   Shared by the Research page and the Home page cert section.
   ════════════════════════════════════════════════════════════════ */

.rp-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.rp-lightbox.rp-lb-active {
  opacity: 1;
  pointer-events: all;
}

.rp-lb-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.88);
  backdrop-filter: blur(6px);
}

.rp-lb-shell {
  position: relative;
  z-index: 1;
  width: min(92vw, 960px);
  max-height: 90vh;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.55);
}

.rp-lb-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  flex-shrink: 0;
  gap: 1rem;
}

.rp-lb-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--muted);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  min-width: 0;
  flex: 1;
}

.rp-lb-controls {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.rp-lb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  padding: 0;
}

.rp-lb-btn:hover {
  background: rgba(220,38,38,0.12);
  border-color: rgba(220,38,38,0.4);
  color: var(--red);
}

.rp-lb-btn--close:hover {
  background: rgba(220,38,38,0.15);
  border-color: var(--red);
  color: var(--red);
}

.rp-lb-zoom-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--muted);
  min-width: 38px;
  text-align: center;
  user-select: none;
}

.rp-lb-sep {
  width: 1px;
  height: 20px;
  background: var(--border);
  margin: 0 4px;
  flex-shrink: 0;
}

.rp-lb-viewport {
  flex: 1;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: grab;
  min-height: 300px;
  background: #0a0f15;
  position: relative;
}

.rp-lb-viewport:active { cursor: grabbing; }

.rp-lb-img-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}

.rp-lb-img {
  max-width: 100%;
  max-height: 68vh;
  object-fit: contain;
  display: block;
  transform-origin: center center;
  transition: transform 0.08s linear;
  user-select: none;
  -webkit-user-drag: none;
  pointer-events: none;
}

.rp-lb-footer {
  padding: 0.45rem 1rem;
  border-top: 1px solid var(--border);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--muted);
  text-align: center;
  background: var(--bg);
  flex-shrink: 0;
}

.rp-lb-footer kbd {
  background: var(--tag-bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 5px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
}

/* Cert image clickable hint on home page */
.cert-img-clickable {
  position: relative;
  cursor: pointer;
}

.cert-img-clickable .rp-cert-zoom-hint {
  top: 6px;
  right: 6px;
}

.cert-img-clickable:hover .rp-cert-zoom-hint {
  opacity: 1;
}

/* ════════════════════════════════════════════════════════════════
   SKILLS — STACKED LAYOUT: OVERVIEW + DYNAMIC MATRIX
   ════════════════════════════════════════════════════════════════ */

.sk-section {
  padding: 5rem 0 4rem;
  background: transparent;
  position: relative;
}

.sk-section-wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.sk-section-head { margin-bottom: 0 !important; }

.sk-section-wrap .sk-terminal-strip { justify-content: center; }

/* ── Dynamic Matrix Card — matches .cert-layout exactly ── */
.sk-matrix-card {
  display: grid;
  grid-template-columns: 240px 1fr;
  background: var(--surface);
  border: 1.5px solid rgba(63,185,80,0.5);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 0 18px rgba(63,185,80,0.15);
}

/* ── Domain nav — matches .cert-nav ── */
.sk-matrix-nav {
  background: #0d1117;
  border-right: 1px solid rgba(63,185,80,0.2);
  padding: 1rem 0;
  display: flex;
  flex-direction: column;
}

.sk-matrix-nav-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9.5px;
  color: rgba(255,95,87,0.7);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0 1.25rem 0.8rem;
  border-bottom: 1px solid rgba(63,185,80,0.15);
  margin-bottom: 0.5rem;
}

/* matches .cert-nav-item */
.sk-matrix-nav-item {
  padding: 14px 20px;
  cursor: pointer;
  font-size: 13px;
  color: var(--muted);
  border-left: 3px solid transparent;
  transition: all 0.2s;
  line-height: 1.4;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.sk-matrix-nav-item:hover { color: var(--text); background: rgba(255,255,255,0.03); }

/* matches .cert-nav-item.active */
.sk-matrix-nav-item.active {
  color: #ff5f57;
  border-left-color: #ff5f57;
  background: rgba(255,95,87,0.06);
}

.sk-matrix-domain-id {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: rgba(255,95,87,0.5);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  line-height: 1;
  display: block;
}

.sk-matrix-nav-item.active .sk-matrix-domain-id { color: rgba(255,95,87,0.85); }

.sk-matrix-domain-name {
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  color: inherit;
  display: block;
}

/* ── Radar panel — matches .cert-panel ── */
.sk-matrix-panel {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.sk-matrix-panel-header {
  width: 100%;
  margin-bottom: 1rem;
  text-align: center;
}

/* matches .cert-info-label */
.sk-matrix-panel-badge {
  font-size: 11px;
  color: #ff5f57;
  font-family: 'JetBrains Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.35rem;
  display: block;
}

/* matches .cert-info h3 */
.sk-matrix-panel-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0;
}

.sk-matrix-chart-wrap {
  width: 100%;
  max-width: 500px;
  transition: opacity 0.28s ease;
}

.sk-matrix-chart-wrap.sk-radar-fade { opacity: 0; }

.sk-matrix-svg {
  width: 100%;
  height: auto;
  display: block;
  overflow: visible;
}

/* ── Responsive ── */

@media (max-width: 1100px) {
  .sk-matrix-card { grid-template-columns: 200px 1fr; }
  .sk-section-wrap .sk-terminal-strip { justify-content: flex-start; }
}

/* matches cert responsive overrides */
@media (max-width: 768px) {
  .sk-section { padding: 3.5rem 0; }
  .sk-module-header { padding: 0.8rem 1rem; }
  .sk-module-name { font-size: 15px; }
  .sk-matrix-card { grid-template-columns: 1fr; }
  .sk-matrix-nav {
    border-right: none;
    border-bottom: 1px solid rgba(63,185,80,0.2);
    padding: 0.5rem 0 0;
    flex-direction: row;
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
  }
  .sk-matrix-nav::-webkit-scrollbar { display: none; }
  .sk-matrix-nav-label { display: none; }
  .sk-matrix-nav-item {
    border-left: none;
    border-bottom: 3px solid transparent;
    padding: 10px 14px 12px;
    white-space: nowrap;
    flex-shrink: 0;
    flex-direction: column;
    gap: 2px;
  }
  .sk-matrix-nav-item.active {
    border-left: none;
    border-bottom-color: #ff5f57;
    background: rgba(255,95,87,0.06);
  }
  .sk-matrix-domain-id { display: none; }
  .sk-matrix-domain-name { font-size: 13px; }
  .sk-matrix-panel { padding: 1.5rem 1rem; }
  .sk-matrix-chart-wrap { max-width: 380px; }
}


@media (max-width: 480px) {
  .sk-section { padding: 3rem 0; }
  .sk-section-wrap { padding: 0 1rem; gap: 1rem; }
  .sk-module-name { font-size: 14px; }
  .sk-module-count { display: none; }
  .sk-module-header { gap: 0.6rem; }
}

/* ════════════════════════════════════════════════════════════════
   NEOFETCH HERO — Cyberpunk Linux Terminal Boot
   ════════════════════════════════════════════════════════════════ */

/* ── Section wrapper ── */
.nf-section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

/* ── Terminal outer container ── */
.nf-terminal-wrap {
  background: rgba(6, 8, 13, 0.97);
  border: 1px solid rgba(0, 255, 180, 0.22);
  border-radius: 10px;
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(0, 255, 180, 0.06),
    0 0 32px rgba(0, 255, 180, 0.09),
    0 0 90px rgba(0, 200, 255, 0.05),
    0 28px 64px rgba(0, 0, 0, 0.75);
  animation: nf-wrap-glow 5s ease-in-out infinite;
}

@keyframes nf-wrap-glow {
  0%, 100% {
    box-shadow:
      0 0 0 1px rgba(0, 255, 180, 0.06),
      0 0 32px rgba(0, 255, 180, 0.09),
      0 0 90px rgba(0, 200, 255, 0.05),
      0 28px 64px rgba(0, 0, 0, 0.75);
  }
  50% {
    box-shadow:
      0 0 0 1px rgba(0, 255, 180, 0.13),
      0 0 44px rgba(0, 255, 180, 0.16),
      0 0 110px rgba(0, 200, 255, 0.08),
      0 28px 64px rgba(0, 0, 0, 0.75);
  }
}

/* ── Chrome title bar ── */
.nf-chrome {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: rgba(10, 14, 20, 0.99);
  border-bottom: 1px solid rgba(0, 255, 180, 0.12);
}

.nf-dots {
  display: flex;
  gap: 7px;
  flex-shrink: 0;
}

.nf-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.nf-dot-r { background: #ff5f57; box-shadow: 0 0 5px rgba(255, 95, 87, 0.65); }
.nf-dot-y { background: #ffbd2e; box-shadow: 0 0 5px rgba(255, 189, 46, 0.65); }
.nf-dot-g { background: #28c840; box-shadow: 0 0 5px rgba(40, 200, 64, 0.65); }

.nf-chrome-label {
  flex: 1;
  text-align: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: rgba(192, 132, 252, 0.55);
  letter-spacing: 0.04em;
  user-select: none;
}

.nf-chrome-right {
  flex-shrink: 0;
  width: 42px;
}

/* ── Terminal body ── */
.nf-body {
  position: relative;
  padding: 1.6rem 1.8rem;
}

/* CRT scan-lines */
.nf-scanlines {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.2) 2px,
    rgba(0, 0, 0, 0.2) 4px
  );
  pointer-events: none;
  z-index: 5;
}

/* ── Two-column grid (image left, terminal right) ── */
.nf-cols {
  display: grid;
  grid-template-columns: 40% 1fr;
  gap: 2.5rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

/* ── Right (visual left): terminal text ── */
.nf-left-col {
  min-width: 0;
}

.nf-output {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  line-height: 1.65;
  color: #c9d1d9;
  min-height: 280px;
}

/* Individual output lines */
.nf-line { display: block; }

/* Prompt colour palette — Cyberpunk style */
.nf-ps { color: #22d3ee; }                           /* cyan   — box chars, brackets  */
.nf-pu {
  color: #c084fc;
  font-weight: 700;
  text-shadow: 0 0 9px rgba(192, 132, 252, 0.55);
}                                                     /* violet — visitor@portfolio    */
.nf-pp { color: #4ade80; }                           /* green  — ~/path               */
.nf-pd { color: #22d3ee; }                           /* cyan   — $                    */
.nf-pc { color: #f1f5f9; }                           /* off-white — command text      */

/* Name output — solid white, like command text */
.nf-out-name {
  font-size: clamp(1.85rem, 3.2vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.1;
  display: inline-block;
  color: #f1f5f9;
  text-shadow:
    0 0 8px rgba(241, 245, 249, 0.25),
    0 0 20px rgba(241, 245, 249, 0.1);
}

/* Tagline — neon red, word-by-word reveal loop */
.nf-tagline {
  color: #ef4444;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14.5px;
  font-style: italic;
  letter-spacing: 0.03em;
  text-shadow:
    0 0 8px rgba(239, 68, 68, 0.75),
    0 0 22px rgba(239, 68, 68, 0.4),
    0 0 50px rgba(239, 68, 68, 0.18);
  animation: nf-tagline-glow 3s ease-in-out infinite;
}
.nf-tagline-caret {
  color: #ef4444;
  animation: nf-blink 0.7s step-end infinite;
  vertical-align: middle;
}
.nf-tagline-word {
  display: inline-block;
  opacity: 0;
  transform: translateY(5px);
  transition: opacity 0.22s ease, transform 0.22s ease;
}
.nf-tagline-word.nf-tw-show {
  opacity: 1;
  transform: translateY(0);
}
@keyframes nf-tagline-glow {
  0%, 100% {
    text-shadow:
      0 0 8px rgba(239, 68, 68, 0.75),
      0 0 22px rgba(239, 68, 68, 0.4),
      0 0 50px rgba(239, 68, 68, 0.18);
  }
  50% {
    text-shadow:
      0 0 14px rgba(239, 68, 68, 1),
      0 0 36px rgba(239, 68, 68, 0.65),
      0 0 75px rgba(239, 68, 68, 0.32);
  }
}

/* Bio output */
.nf-out-bio {
  color: #b0bec9;
  font-size: 12.5px;
  line-height: 1.85;
}

/* System info rows */
.nf-si-row { display: block; }
.nf-si-k {
  display: inline-block;
  min-width: 66px;
  color: #22d3ee;
  font-weight: 600;
  font-size: 12px;
}
.nf-si-sep { color: rgba(34, 211, 238, 0.4); font-size: 12px; }
.nf-si-v   { color: #e2e8f0; font-size: 12px; }

/* Blinking terminal cursor at end */
.nf-end-cursor {
  display: inline-block;
  width: 8px;
  height: 14px;
  background: #00ff88;
  vertical-align: middle;
  animation: nf-blink 0.85s step-end infinite;
}
@keyframes nf-blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* ── Actions bar (hire + socials) ── */
.nf-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1.1rem;
  opacity: 0;
  transition: opacity 0.7s ease;
}
.nf-actions.nf-actions-show { opacity: 1; }

.nf-hire-btn {
  display: inline-block;
  background: rgba(220, 38, 38, 0.12);
  color: #ef4444;
  border: 1px solid rgba(220, 38, 38, 0.45);
  padding: 7px 22px;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.22s;
  letter-spacing: 0.02em;
}
.nf-hire-btn:hover {
  background: rgba(220, 38, 38, 0.26);
  border-color: #ef4444;
  box-shadow: 0 0 18px rgba(220, 38, 38, 0.28);
  transform: translateY(-1px);
}

.nf-socials {
  display: flex;
  gap: 8px;
}

.nf-social-icon {
  width: 34px;
  height: 34px;
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: all 0.22s;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 600;
}
.nf-social-icon svg { width: 15px; height: 15px; }

/* GitHub — grey */
.nf-si--github {
  background: rgba(139, 148, 158, 0.12);
  color: #8b949e;
  border: 1px solid rgba(139, 148, 158, 0.4);
}
.nf-si--github:hover {
  background: rgba(139, 148, 158, 0.26);
  border-color: #8b949e;
  box-shadow: 0 0 14px rgba(139, 148, 158, 0.28);
  transform: translateY(-2px);
}

/* LinkedIn — blue */
.nf-si--linkedin {
  background: rgba(0, 119, 181, 0.12);
  color: #0a95d0;
  border: 1px solid rgba(0, 119, 181, 0.4);
}
.nf-si--linkedin:hover {
  background: rgba(0, 119, 181, 0.26);
  border-color: #0a95d0;
  box-shadow: 0 0 14px rgba(0, 119, 181, 0.28);
  transform: translateY(-2px);
}

/* TryHackMe — red/orange */
.nf-si--tryhackme {
  background: rgba(220, 38, 38, 0.12);
  color: #ef4444;
  border: 1px solid rgba(220, 38, 38, 0.4);
}
.nf-si--tryhackme:hover {
  background: rgba(220, 38, 38, 0.26);
  border-color: #ef4444;
  box-shadow: 0 0 14px rgba(220, 38, 38, 0.28);
  transform: translateY(-2px);
}

/* Twitter / X — sky blue */
.nf-si--twitter {
  background: rgba(29, 155, 240, 0.12);
  color: #1d9bf0;
  border: 1px solid rgba(29, 155, 240, 0.4);
}
.nf-si--twitter:hover {
  background: rgba(29, 155, 240, 0.26);
  border-color: #1d9bf0;
  box-shadow: 0 0 14px rgba(29, 155, 240, 0.28);
  transform: translateY(-2px);
}

/* Facebook — blue */
.nf-si--facebook {
  background: rgba(24, 119, 242, 0.12);
  color: #1877f2;
  border: 1px solid rgba(24, 119, 242, 0.4);
}
.nf-si--facebook:hover {
  background: rgba(24, 119, 242, 0.26);
  border-color: #1877f2;
  box-shadow: 0 0 14px rgba(24, 119, 242, 0.28);
  transform: translateY(-2px);
}

/* WhatsApp — green */
.nf-si--whatsapp {
  background: rgba(37, 211, 102, 0.12);
  color: #25d366;
  border: 1px solid rgba(37, 211, 102, 0.4);
}
.nf-si--whatsapp:hover {
  background: rgba(37, 211, 102, 0.26);
  border-color: #25d366;
  box-shadow: 0 0 14px rgba(37, 211, 102, 0.28);
  transform: translateY(-2px);
}

/* Email — amber */
.nf-si--email {
  background: rgba(251, 191, 36, 0.12);
  color: #fbbf24;
  border: 1px solid rgba(251, 191, 36, 0.4);
}
.nf-si--email:hover {
  background: rgba(251, 191, 36, 0.26);
  border-color: #fbbf24;
  box-shadow: 0 0 14px rgba(251, 191, 36, 0.28);
  transform: translateY(-2px);
}

/* ── Left (visual): portrait focal column ── */
.nf-right-col {
  display: flex;
  justify-content: center;
  align-items: center;
}

.nf-img-wrap {
  position: relative;
  display: inline-block;
  vertical-align: top;
  line-height: 0;
  border: 1.5px solid rgba(0, 255, 180, 0.55);
  border-radius: 8px;
  box-shadow:
    0 0 0 1px rgba(0, 255, 180, 0.15),
    0 0 14px rgba(0, 255, 180, 0.50),
    0 0 35px rgba(0, 255, 180, 0.22),
    0 0 65px rgba(0, 255, 180, 0.10),
    0 8px 32px rgba(0, 0, 0, 0.55);
  animation: nf-portrait-frame-pulse 5s ease-in-out infinite;
}

/* Cyberpunk targeting-reticle corners — sit inside the image edges */
.nf-img-wrap::before {
  content: '';
  position: absolute;
  inset: 5px;
  border-radius: 4px;
  pointer-events: none;
  z-index: 3;
  background:
    linear-gradient(rgba(0, 255, 180, 0.90), rgba(0, 255, 180, 0.90)) top left    / 16px 1.5px no-repeat,
    linear-gradient(rgba(0, 255, 180, 0.90), rgba(0, 255, 180, 0.90)) top left    / 1.5px 16px no-repeat,
    linear-gradient(rgba(0, 255, 180, 0.90), rgba(0, 255, 180, 0.90)) top right   / 16px 1.5px no-repeat,
    linear-gradient(rgba(0, 255, 180, 0.90), rgba(0, 255, 180, 0.90)) top right   / 1.5px 16px no-repeat,
    linear-gradient(rgba(0, 255, 180, 0.90), rgba(0, 255, 180, 0.90)) bottom left / 16px 1.5px no-repeat,
    linear-gradient(rgba(0, 255, 180, 0.90), rgba(0, 255, 180, 0.90)) bottom left / 1.5px 16px no-repeat,
    linear-gradient(rgba(0, 255, 180, 0.90), rgba(0, 255, 180, 0.90)) bottom right/ 16px 1.5px no-repeat,
    linear-gradient(rgba(0, 255, 180, 0.90), rgba(0, 255, 180, 0.90)) bottom right/ 1.5px 16px no-repeat;
  animation: nf-corner-pulse 3s ease-in-out infinite;
}

/* Portrait — filter only on the img, frame lives on the wrapper */
.nf-portrait {
  display: block;
  width: 100%;
  max-width: 310px;
  height: 420px;
  object-fit: cover;
  object-position: top center;
  border-radius: 8px;
  filter:
    saturate(0.35)
    hue-rotate(148deg)
    brightness(1.2)
    contrast(1.12);
  animation: nf-portrait-glitch 9s ease-in-out infinite;
}

@keyframes nf-portrait-glitch {
  0%, 87%, 100% {
    transform: translate(0, 0);
    filter: saturate(0.35) hue-rotate(148deg) brightness(1.2) contrast(1.12);
    clip-path: none;
  }
  88% {
    transform: translate(-4px, 0);
    filter: saturate(0.7) hue-rotate(110deg) brightness(1.5) contrast(1.35);
    clip-path: polygon(0 8%, 100% 8%, 100% 26%, 0 26%);
  }
  89% {
    transform: translate(4px, 1px);
    filter: saturate(0.15) hue-rotate(205deg) brightness(0.82) contrast(1.28);
    clip-path: none;
  }
  90% {
    transform: translate(-2px, -1px);
    filter: saturate(0.5) hue-rotate(138deg) brightness(1.15) contrast(1.1);
    clip-path: polygon(0 58%, 100% 58%, 100% 74%, 0 74%);
  }
  91% {
    transform: translate(0, 0);
    filter: saturate(0.35) hue-rotate(148deg) brightness(1.2) contrast(1.12);
    clip-path: none;
  }
  93% {
    transform: translate(3px, 0);
    filter: saturate(0.9) hue-rotate(118deg) brightness(1.6) contrast(1.3);
    clip-path: polygon(0 80%, 100% 80%, 100% 91%, 0 91%);
  }
  94% {
    transform: translate(0, 0);
    filter: saturate(0.35) hue-rotate(148deg) brightness(1.2) contrast(1.12);
    clip-path: none;
  }
}

/* Social-icon teal colour overlay */
.nf-img-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 6px;
  background: linear-gradient(
    155deg,
    rgba(0, 255, 180, 0.07) 0%,
    rgba(0, 100, 255, 0.04) 50%,
    rgba(0, 255, 180, 0.02) 100%
  );
  mix-blend-mode: screen;
  pointer-events: none;
  z-index: 2;
  animation: nf-overlay-pulse 9s ease-in-out infinite;
}

@keyframes nf-overlay-pulse {
  0%, 87%, 100% { opacity: 1; }
  88%           { opacity: 0.2; }
  89%           { opacity: 1; }
  90%           { opacity: 0.4; }
  91%           { opacity: 1; }
  93%           { opacity: 0.3; }
  94%           { opacity: 1; }
}

/* Neon frame pulsing glow */
@keyframes nf-portrait-frame-pulse {
  0%, 100% {
    border-color: rgba(0, 255, 180, 0.55);
    box-shadow:
      0 0 0 1px rgba(0, 255, 180, 0.15),
      0 0 14px rgba(0, 255, 180, 0.50),
      0 0 35px rgba(0, 255, 180, 0.22),
      0 0 65px rgba(0, 255, 180, 0.10),
      0 8px 32px rgba(0, 0, 0, 0.55);
  }
  50% {
    border-color: rgba(0, 255, 180, 0.82);
    box-shadow:
      0 0 0 1px rgba(0, 255, 180, 0.28),
      0 0 22px rgba(0, 255, 180, 0.75),
      0 0 52px rgba(0, 255, 180, 0.36),
      0 0 88px rgba(0, 255, 180, 0.16),
      0 8px 40px rgba(0, 0, 0, 0.65);
  }
}

/* Corner accent pulse */
@keyframes nf-corner-pulse {
  0%, 100% { opacity: 0.65; }
  50%       { opacity: 1; filter: blur(0.4px); }
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .nf-cols {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .nf-left-col  { order: 1; }
  .nf-right-col { order: 2; }
  .nf-portrait  { max-width: 260px; height: 300px; }
  .nf-output    { min-height: 200px; }
}

@media (max-width: 480px) {
  .nf-section { padding: 1.5rem 1rem; }
  .nf-body    { padding: 1.1rem 1.1rem; }
  .nf-portrait { max-width: 200px; height: 240px; }
  .nf-chrome-label { font-size: 9px; }
  .nf-output { font-size: 12px; min-height: 160px; }
}

/* ════════════════════════════════════════════════════════════════
   FULL CROSS-DEVICE RESPONSIVE SYSTEM
   Targets: Desktop 1200px+ | Laptop 1024-1199px |
            Tablet-L 769-1023px | Tablet-P 481-768px |
            Mobile 321-480px | Small 320px and below
   ════════════════════════════════════════════════════════════════ */

/* ── Prevent horizontal overflow site-wide ── */
html, body { overflow-x: hidden; }
main { overflow-x: hidden; }

/* ── Navbar: tighten logo on laptop ── */
@media (max-width: 1200px) {
  .navbar-logo { height: 44px; }
  #navbar { padding: 6px 1.25rem; }
}

/* ── Mobile menu: properly positioned under navbar on all sizes ── */
@media (max-width: 1100px) {
  .mobile-menu {
    top: 80px;
    border-radius: 0 0 8px 8px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.5);
    max-height: calc(100vh - 80px);
    overflow-y: auto;
  }
  main { padding-top: 80px; }
}
@media (max-width: 768px) {
  .mobile-menu { top: 70px; max-height: calc(100vh - 70px); }
  main { padding-top: 70px; }
  .navbar-logo { height: 38px; }
}

/* ── Terminal command strips: scroll horizontally, never wrap ── */
@media (max-width: 768px) {
  .sk-terminal-strip {
    overflow-x: auto;
    flex-wrap: nowrap;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding: 0.55rem 0.85rem;
  }
  .sk-terminal-strip::-webkit-scrollbar { display: none; }
  .sk-ts-divider,
  .sk-ts-ok { white-space: nowrap; }
}

/* ── Hero neofetch — portrait centered on stacked layout ── */
@media (max-width: 900px) {
  .nf-right-col {
    display: flex;
    justify-content: center;
    order: 2;
  }
  .nf-left-col { order: 1; }
  .nf-actions {
    justify-content: flex-start;
    flex-wrap: wrap;
  }
  .nf-socials { flex-wrap: wrap; }
}
@media (max-width: 640px) {
  .nf-section { padding: 1.25rem 1rem; }
  .nf-terminal-wrap { border-radius: 8px; }
  .nf-body { padding: 1rem; }
  .nf-actions { gap: 0.6rem; }
  .nf-hire-btn { font-size: 12px; padding: 7px 14px; }
  .nf-social-icon { width: 30px; height: 30px; }
  .nf-social-icon svg { width: 14px; height: 14px; }
}
@media (max-width: 400px) {
  .nf-portrait { max-width: 170px; height: 210px; }
  .nf-output { font-size: 11px; }
}

/* ── Skills section: skill-module grid ── */
@media (min-width: 641px) and (max-width: 900px) {
  .sk-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .sk-section-wrap { padding: 0 1.25rem; }
}
@media (max-width: 480px) {
  .sk-matrix-chart-wrap { max-width: 100%; }
  .sk-matrix-panel { padding: 1rem 0.75rem; }
}

/* ── Certifications: prevent image overflow ── */
@media (max-width: 600px) {
  .cert-img-placeholder { height: 150px; }
  .cert-panel { padding: 1.25rem; }
  .cert-detail-top { gap: 1rem; }
}

/* ── Experience: badge wrap on narrow ── */
@media (max-width: 520px) {
  .exp-header { flex-direction: column; align-items: flex-start; gap: 0.4rem; }
  .exp-title { font-size: 1rem; }
}

/* ── Education: icon scaling ── */
@media (max-width: 480px) {
  .edu-icon { width: 42px; height: 42px; font-size: 1.1rem; }
  .edu-card { gap: 1rem; padding: 16px; }
}

/* ── Volunteering: stack header on phones ── */
@media (max-width: 520px) {
  .vol-org-header { flex-direction: column; gap: 0.75rem; }
  .vol-org-logo { width: 44px; height: 44px; }
  .vol-timeline { padding: 1.25rem 1rem 1rem; }
  .vol-timeline-line { left: calc(1rem + 9px); }
  .vol-role { gap: 0.85rem; }
}

/* ── Projects home preview: 2-col on tablets ── */
@media (min-width: 641px) and (max-width: 1023px) {
  .home-proj-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ── Research cards: stack image on phones ── */
@media (max-width: 520px) {
  .research-card { padding: 1.1rem; }
  .research-card-top { grid-template-columns: 1fr; gap: 0.75rem; }
  .research-cert-img,
  .research-cert-placeholder { width: 100%; height: 110px; }
}

/* ── Writeup cards: thumbnail on tablet ── */
@media (min-width: 481px) and (max-width: 768px) {
  .writeup-card { grid-template-columns: 90px 1fr; }
  .writeup-thumb { width: 90px; height: 70px; }
}

/* ── Contact section ── */
@media (max-width: 520px) {
  .contact-item { gap: 0.75rem; }
  .contact-item-icon { width: 34px; height: 34px; font-size: 0.85rem; }
  .contact-item-body p:last-child { font-size: 13px; word-break: break-word; }
  .contact-eng-tag { font-size: 10px; padding: 3px 8px; }
  .contact-form { padding: 1.25rem; }
  .btn-submit { font-size: 14px; }
}

/* ── Footer: stack on mobile ── */
@media (max-width: 600px) {
  .cf-brand-col { flex-direction: column; gap: 1.25rem; }
  .cf-brand-right {
    border-left: none;
    padding-left: 0;
    border-top: 1px solid rgba(34,197,94,0.15);
    padding-top: 1rem;
    align-items: flex-start;
    text-align: left;
    margin-left: 0;
  }
  .cf-specs { align-items: flex-start; }
  .cf-specs-label { text-align: left; }
  .cf-specs-list { align-items: flex-start; }
  .cf-avail { flex-direction: column; gap: 4px; }
  .cf-avail-title, .cf-avail-sub { white-space: normal; }
  .cf-entry-rule { margin: 0 1rem 2rem; }
  .cf-main { padding: 0 1rem 2rem; }
  .cfm-bar { padding: 0.875rem 1rem; }
  .cfst-inner { padding: 0.5rem 1rem; flex-wrap: wrap; justify-content: center; }
  .cfst-pipe { display: none; }
  .cfst-module { padding: 3px 0.5rem; }
}
@media (max-width: 400px) {
  .cf-collab-group { gap: 0.5rem; }
  .cf-avail { padding: 0.6rem 0.75rem; }
  .cf-social-row { gap: 0.5rem; }
  .nf-hire-btn { font-size: 11px; padding: 6px 12px; }
}

/* ── Section dividers: tighter margins ── */
@media (max-width: 640px) {
  .section-divider { margin: 0 1rem; }
}

/* ── Back-to-top: smaller on mobile ── */
@media (max-width: 480px) {
  #back-top { bottom: 16px; right: 16px; width: 36px; height: 36px; font-size: 16px; }
}

/* ── Very small screens (≤360px) ── */
@media (max-width: 360px) {
  .section-wrap { padding: 0 0.75rem; }
  .contact-wrap { padding: 0 0.75rem; }
  .nf-section { padding: 1rem 0.75rem; }
  .sk-section-wrap { padding: 0 0.75rem; }
  .service-card,
  .exp-card,
  .edu-card { padding: 14px; }
  .section-head h2 { font-size: 1.45rem; }
  .section-head p { font-size: 13px; }
  .vol-timeline { padding: 1rem 0.75rem 0.75rem; }
  .vol-timeline-line { left: calc(0.75rem + 9px); }
  .cf-main { padding: 0 0.75rem 1.75rem; }
  .cfm-bar { padding: 0.75rem; }
}

/* ── Tablet landscape (769-1024px): multi-column intermediate layouts ── */
@media (min-width: 769px) and (max-width: 1024px) {
  .section-wrap { padding: 0 1.5rem; }
  .contact-wrap { padding: 0 1.5rem; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .home-proj-grid { grid-template-columns: repeat(2, 1fr); }
  .sk-grid { grid-template-columns: repeat(2, 1fr); }
  #services, #certifications, #experience, #education,
  #volunteering, #projects-preview, #research,
  #writeups-preview, #contact { padding: 4rem 0 !important; }
}

/* ── Laptop (1025-1199px) ── */
@media (min-width: 1025px) and (max-width: 1199px) {
  .section-wrap { padding: 0 1.75rem; }
  .home-proj-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ── Ensure pill tags wrap on mobile ── */
@media (max-width: 480px) {
  .tags-wrap { gap: 4px; }
  .pill { font-size: 9px; padding: 2px 7px; }
}

/* ── Writeups and projects list pages on mobile ── */
@media (max-width: 640px) {
  .wu-featured-card { height: 220px; }
  .proj-grid { grid-template-columns: 1fr; }
}
@media (min-width: 641px) and (max-width: 900px) {
  .wu-featured-grid { grid-template-columns: repeat(2, 1fr); }
  .proj-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ── Flash messages on mobile ── */
@media (max-width: 640px) {
  .flash-message { margin: 0.75rem 1rem; font-size: 13px; }
}

/* ── HUD brackets: hide on small screens to avoid overlap ── */
@media (max-width: 640px) {
  .hud-br-tl, .hud-br-tr, .hud-br-bl, .hud-br-br { display: none; }
}

/* ── Ghost column: always hidden below 1200px for clean layout ── */
@media (max-width: 1200px) {
  .ghost-col { display: none; }
}

/* ── Cert lightbox on mobile ── */
@media (max-width: 640px) {
  .rp-lb-shell { width: 96vw; max-height: 88vh; }
  .rp-lb-toolbar { padding: 8px 10px; flex-wrap: wrap; gap: 6px; }
  .rp-lb-title { font-size: 11px; max-width: 60%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
}

/* ── Scrollspy nav-indicator: disable on mobile ── */
@media (max-width: 1100px) {
  .nav-indicator { display: none; }
}

/* ── Mobile link tap targets: comfortable 44px minimum ── */
@media (max-width: 768px) {
  .mobile-menu a { min-height: 44px; display: flex; align-items: center; }
  .btn-view-all { min-height: 44px; }
  .nf-hire-btn { min-height: 40px; display: inline-flex; align-items: center; }
}