/* ───────────────────────────────────────────
   Ismail Qayyum — Portfolio
   ─────────────────────────────────────────── */

:root {
  --bg: #07070b;
  --bg-2: #0c0c14;
  --surface: #11111b;
  --surface-2: #161622;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #ececf1;
  --text-soft: #b6b6c2;
  --muted: #7a7a8c;
  --primary: #818cf8;
  --primary-2: #a78bfa;
  --accent: #06b6d4;
  --accent-2: #22d3ee;
  --grad: linear-gradient(135deg, #818cf8 0%, #a78bfa 50%, #22d3ee 100%);
  --grad-soft: linear-gradient(135deg, rgba(129, 140, 248, .15), rgba(34, 211, 238, .12));
  --shadow-lg: 0 30px 80px -20px rgba(0, 0, 0, 0.6), 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 0 1px rgba(129, 140, 248, .25), 0 20px 60px -20px rgba(129, 140, 248, .35);
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-xl: 28px;
  --container: 1200px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

* { box-sizing: border-box; }
*::selection { background: var(--primary); color: #07070b; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}
@media (max-width: 640px) {
  .container { padding: 0 20px; }
}

/* ───────── Background visuals ───────── */
.bg {
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.bg__canvas {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  display: block;
  opacity: .85;
}
.bg__blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(110px);
  opacity: .55;
  animation: float 22s ease-in-out infinite;
}
.bg__blob--1 {
  width: 520px; height: 520px;
  background: radial-gradient(circle, #6366f1 0%, transparent 60%);
  top: -120px; left: -100px;
}
.bg__blob--2 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, #06b6d4 0%, transparent 60%);
  top: 40%; right: -180px;
  animation-delay: -7s;
}
.bg__blob--3 {
  width: 480px; height: 480px;
  background: radial-gradient(circle, #a78bfa 0%, transparent 60%);
  bottom: -120px; left: 30%;
  animation-delay: -14s;
}
@keyframes float {
  0%, 100% { transform: translate3d(0,0,0) scale(1); }
  33% { transform: translate3d(40px, -30px, 0) scale(1.05); }
  66% { transform: translate3d(-30px, 30px, 0) scale(.95); }
}
.bg__noise {
  position: absolute; inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix type='saturate' values='0'/></filter><rect width='100%' height='100%' filter='url(%23n)' opacity='0.6'/></svg>");
  opacity: .035;
  mix-blend-mode: overlay;
}

/* ───────── Nav ───────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
  padding: 16px 28px;
  background: rgba(7, 7, 11, 0.55);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  border-bottom: 1px solid transparent;
  transition: border-color .25s var(--ease), background .25s var(--ease), padding .25s var(--ease);
}
.nav.is-scrolled {
  border-bottom-color: var(--border);
  padding: 12px 28px;
}
@media (max-width: 640px) {
  .nav, .nav.is-scrolled { padding: 12px 20px; }
}

.nav__brand {
  display: inline-flex; align-items: center; gap: 12px;
  font-weight: 700;
}
.nav__logo {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px;
  border-radius: 10px;
  background: var(--grad);
  color: #0a0a0f;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-weight: 800;
  font-size: 15px;
  letter-spacing: -.5px;
  box-shadow: 0 6px 20px -6px rgba(129, 140, 248, .6);
}
.nav__name { font-size: 14px; letter-spacing: -.2px; }
@media (max-width: 480px) { .nav__name { display: none; } }

.nav__links {
  display: flex; align-items: center; gap: 4px;
}
.nav__links a {
  position: relative;
  padding: 8px 14px;
  font-size: 14px;
  color: var(--text-soft);
  border-radius: var(--r-sm);
  transition: color .2s var(--ease), background .2s var(--ease);
}
.nav__links a:hover { color: var(--text); background: rgba(255,255,255,.04); }
@media (max-width: 880px) { .nav__links { display: none; } }

.nav__cta { display: flex; align-items: center; gap: 10px; }

.nav__toggle {
  display: none;
  width: 40px; height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.02);
  position: relative;
}
.nav__toggle span {
  display: block;
  width: 18px; height: 2px;
  background: var(--text);
  margin: 3px auto;
  border-radius: 2px;
  transition: transform .25s var(--ease), opacity .25s var(--ease);
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }
@media (max-width: 880px) { .nav__toggle { display: block; } }

.mobile-menu {
  position: fixed;
  top: 64px; left: 12px; right: 12px;
  padding: 14px;
  background: rgba(12, 12, 20, .9);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--border);
  border-radius: 18px;
  z-index: 49;
  display: none;
  flex-direction: column;
  gap: 4px;
  box-shadow: var(--shadow-lg);
}
.mobile-menu.is-open { display: flex; }
.mobile-menu a {
  padding: 12px 14px;
  border-radius: 10px;
  color: var(--text-soft);
  font-size: 15px;
  font-weight: 500;
}
.mobile-menu a:hover { background: rgba(255,255,255,.04); color: var(--text); }
.mobile-menu__cta {
  margin-top: 6px;
  background: var(--grad);
  color: #0a0a0f !important;
  font-weight: 600;
  text-align: center;
}

/* ───────── Buttons ───────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -.1px;
  border: 1px solid transparent;
  transition: transform .2s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease), color .2s var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--grad);
  color: #08080d;
  box-shadow: 0 10px 24px -10px rgba(129, 140, 248, .65);
}
.btn--primary:hover { box-shadow: 0 14px 30px -10px rgba(129, 140, 248, .85); }

.btn--secondary {
  background: rgba(255,255,255,.04);
  color: var(--text);
  border-color: var(--border);
}
.btn--secondary:hover { background: rgba(255,255,255,.07); border-color: var(--border-strong); }

.btn--ghost {
  background: transparent;
  color: var(--text-soft);
  border-color: var(--border);
}
.btn--ghost:hover { color: var(--text); border-color: var(--border-strong); background: rgba(255,255,255,.03); }

.btn--lg { padding: 14px 22px; font-size: 15px; }
.btn--sm { padding: 8px 14px; font-size: 13px; }

/* ───────── Hero ───────── */
.hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  padding: 130px 0 80px;
  display: flex;
  align-items: center;
}
.hero__inner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
}
@media (max-width: 980px) {
  .hero__inner { grid-template-columns: 1fr; gap: 40px; }
  .hero { padding: 110px 0 60px; min-height: auto; }
}

.hero__badge {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 6px 14px 6px 10px;
  background: rgba(255,255,255,.03);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  color: var(--text-soft);
  margin-bottom: 28px;
}
.hero__badge .dot {
  width: 8px; height: 8px;
  background: #34d399;
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(52, 211, 153, .15);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(52, 211, 153, .15); }
  50% { box-shadow: 0 0 0 8px rgba(52, 211, 153, .05); }
}

.hero__title {
  font-size: clamp(40px, 6vw, 76px);
  line-height: 1.02;
  letter-spacing: -.04em;
  font-weight: 800;
  margin: 0 0 24px;
}
.grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lede {
  font-size: clamp(16px, 1.6vw, 19px);
  color: var(--text-soft);
  max-width: 580px;
  margin: 0 0 36px;
}
.hero__lede strong { color: var(--text); font-weight: 600; }

.hero__ctas {
  display: flex; flex-wrap: wrap; gap: 12px;
  margin-bottom: 36px;
}

.hero__socials {
  display: flex; gap: 6px;
}
.hero__socials a {
  width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.02);
  color: var(--text-soft);
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease), transform .2s var(--ease);
}
.hero__socials a:hover {
  color: var(--text);
  border-color: var(--primary);
  background: rgba(129, 140, 248, .08);
  transform: translateY(-2px);
}

/* Hero visual stack: portrait + terminal */
.hero__visual {
  position: relative;
  width: 100%;
  max-width: 520px;
  margin-left: auto;
}
@media (max-width: 980px) {
  .hero__visual { max-width: 100%; margin-left: 0; }
}

.hero__portrait {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  z-index: 1;
  isolation: isolate;
  /* No frame — figure floats with backdrop glow */
}
/* Soft luminous disc that lights the subject from behind */
.hero__portrait-disc {
  position: absolute;
  left: 50%; top: 52%;
  transform: translate(-50%, -50%);
  width: 78%; aspect-ratio: 1 / 1;
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%,
      rgba(129, 140, 248, .55) 0%,
      rgba(167, 139, 250, .35) 30%,
      rgba(34, 211, 238, .18) 55%,
      transparent 75%);
  filter: blur(8px);
  z-index: 0;
  pointer-events: none;
}
/* Outer ambient glow */
.hero__portrait-glow {
  position: absolute;
  inset: -8%;
  background:
    radial-gradient(circle at 30% 22%, rgba(129, 140, 248, .35) 0%, transparent 55%),
    radial-gradient(circle at 78% 80%, rgba(34, 211, 238, .28) 0%, transparent 55%);
  filter: blur(36px);
  z-index: 0;
  pointer-events: none;
  animation: portrait-glow 9s ease-in-out infinite;
}
@keyframes portrait-glow {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: .8; transform: scale(1.04); }
}
.hero__portrait img {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: 50% 100%;
  display: block;
  filter:
    drop-shadow(0 0 30px rgba(129, 140, 248, .35))
    drop-shadow(0 18px 40px rgba(0, 0, 0, .55))
    contrast(1.04) saturate(1.04);
  transition: filter .55s var(--ease), transform .55s var(--ease);
}
.hero__portrait:hover img {
  transform: translateY(-6px) scale(1.015);
  filter:
    drop-shadow(0 0 44px rgba(129, 140, 248, .55))
    drop-shadow(0 22px 48px rgba(0, 0, 0, .65))
    contrast(1.05) saturate(1.08);
}
@media (prefers-reduced-motion: reduce) {
  .hero__portrait-glow { animation: none; }
}
.hero__portrait-badge {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  background: rgba(7, 7, 11, .82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  font-size: 12px;
  color: var(--text);
  font-weight: 500;
  letter-spacing: -.01em;
  z-index: 4;
  white-space: nowrap;
}
.hero__portrait-badge-dot {
  width: 7px; height: 7px;
  background: #34d399;
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(52, 211, 153, .18);
  animation: pulse 2.4s ease-in-out infinite;
}

/* Terminal sits cleanly below the portrait — no overlap */
.hero__visual .terminal {
  margin-top: 22px;
  position: relative;
  z-index: 1;
}
.hero__visual .terminal__body {
  min-height: 220px;
  font-size: 12.5px;
  padding: 18px;
}

/* Terminal */
.terminal {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  background: rgba(10, 10, 16, .85);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(8px);
}
.terminal::before {
  content: "";
  position: absolute; inset: -1px;
  border-radius: 17px;
  background: var(--grad);
  opacity: .35;
  z-index: -1;
  filter: blur(20px);
}
.terminal__bar {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 16px;
  background: rgba(255,255,255,.03);
  border-bottom: 1px solid var(--border);
}
.terminal__dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  display: inline-block;
}
.terminal__dot--r { background: #ff5f57; }
.terminal__dot--y { background: #febc2e; }
.terminal__dot--g { background: #28c840; }
.terminal__title {
  margin-left: 10px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 12px;
  color: var(--muted);
}
.terminal__body {
  margin: 0;
  padding: 22px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 13.5px;
  line-height: 1.7;
  white-space: pre-wrap;
  color: var(--text-soft);
  min-height: 320px;
}
.terminal__body .tk { color: #c4b5fd; }
.terminal__body .str { color: #6ee7b7; }
.terminal__body .num { color: #fbbf24; }
.terminal__body .com { color: #71717a; font-style: italic; }
.terminal__body .out { color: var(--text); }
.terminal__body .cur {
  display: inline-block;
  width: 8px; height: 1.05em;
  background: var(--accent-2);
  vertical-align: text-bottom;
  margin-left: 2px;
  animation: blink 1s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero__scroll {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  width: 26px; height: 42px;
  border: 1.5px solid rgba(255,255,255,.18);
  border-radius: 14px;
  display: flex; justify-content: center;
  padding-top: 8px;
}
.hero__scroll span {
  width: 3px; height: 8px;
  background: var(--text-soft);
  border-radius: 3px;
  animation: scroll 1.8s ease-in-out infinite;
}
@keyframes scroll {
  0% { opacity: 0; transform: translateY(-4px); }
  40% { opacity: 1; }
  100% { opacity: 0; transform: translateY(12px); }
}
@media (max-width: 980px) { .hero__scroll { display: none; } }

/* ───────── Stats ───────── */
.stats {
  position: relative; z-index: 1;
  padding: 30px 0 60px;
}
.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding: 28px;
  border-radius: var(--r-xl);
  background: linear-gradient(135deg, rgba(129, 140, 248, .06), rgba(34, 211, 238, .04));
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
}
@media (max-width: 880px) { .stats__grid { grid-template-columns: repeat(2, 1fr); padding: 22px; } }
@media (max-width: 480px) { .stats__grid { grid-template-columns: 1fr; gap: 8px; padding: 18px; } }

.stat {
  padding: 18px;
  border-right: 1px solid var(--border);
  text-align: left;
}
.stat:last-child { border-right: 0; }
@media (max-width: 880px) {
  .stat { border-right: 0; border-bottom: 1px solid var(--border); }
  .stat:nth-child(2n) { border-right: 0; }
  .stat:nth-last-child(-n+2) { border-bottom: 0; }
}
@media (max-width: 480px) {
  .stat { border-bottom: 1px solid var(--border); padding: 14px 4px; }
  .stat:last-child { border-bottom: 0; }
}

.stat__value {
  font-size: clamp(36px, 4.4vw, 56px);
  font-weight: 800;
  letter-spacing: -.04em;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
  margin-bottom: 8px;
}
.stat__label {
  font-size: 13px;
  color: var(--text-soft);
  line-height: 1.4;
}

/* ───────── Section heading ───────── */
.section {
  position: relative; z-index: 1;
  padding: 100px 0;
}
@media (max-width: 880px) { .section { padding: 70px 0; } }

.section__head {
  margin-bottom: 56px;
  max-width: 820px;
}
@media (max-width: 880px) { .section__head { margin-bottom: 40px; } }

.kicker {
  display: inline-flex; align-items: center; gap: 12px;
  margin-bottom: 18px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 12.5px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--muted);
}
.kicker span {
  color: var(--primary);
  font-weight: 600;
}
.section__head h2 {
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.05;
  letter-spacing: -.03em;
  font-weight: 800;
  margin: 0;
}

/* ───────── About ───────── */
.about {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 980px) { .about { grid-template-columns: 1fr; gap: 32px; } }

.about__col p {
  font-size: 17px;
  color: var(--text-soft);
  margin: 0 0 18px;
}
.about__col strong { color: var(--text); font-weight: 600; }

.about__card {
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  position: sticky;
  top: 100px;
}
.about__card h3 {
  margin: 0 0 18px;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--muted);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-weight: 500;
}
.about__list {
  list-style: none;
  padding: 0; margin: 0 0 24px;
  display: flex; flex-direction: column; gap: 14px;
}
.about__list li {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 14px;
  font-size: 14px;
  align-items: baseline;
  border-bottom: 1px solid var(--border);
  padding-bottom: 14px;
}
.about__list li:last-child { border-bottom: 0; padding-bottom: 0; }
.about__list span {
  color: var(--muted);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .06em;
}

/* ───────── Skills ───────── */
.skills {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 980px) { .skills { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .skills { grid-template-columns: 1fr; } }

.skill {
  position: relative;
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  transition: transform .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease);
}
.skill::before {
  content: "";
  position: absolute; inset: 0;
  border-radius: var(--r-lg);
  padding: 1px;
  background: var(--grad);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity .35s var(--ease);
  pointer-events: none;
}
.skill:hover { transform: translateY(-4px); background: var(--surface-2); }
.skill:hover::before { opacity: 1; }

.skill header {
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 18px;
}
.skill__icon {
  width: 42px; height: 42px;
  border-radius: 12px;
  background: var(--grad-soft);
  border: 1px solid var(--border);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--primary);
}
.skill__icon svg { width: 22px; height: 22px; }
.skill h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -.02em;
}
.chips {
  list-style: none;
  padding: 0; margin: 0;
  display: flex; flex-wrap: wrap; gap: 6px;
}
.chips li {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 12px;
  padding: 5px 11px;
  background: rgba(129, 140, 248, .08);
  color: var(--text-soft);
  border: 1px solid rgba(129, 140, 248, .15);
  border-radius: 999px;
}
.chips--muted li {
  background: rgba(255,255,255,.03);
  border-color: var(--border);
  color: var(--text-soft);
}

/* ───────── Timeline ───────── */
.timeline {
  list-style: none;
  padding: 0; margin: 0;
  position: relative;
}
.timeline::before {
  content: "";
  position: absolute;
  top: 0; bottom: 0;
  left: 12px;
  width: 2px;
  background: linear-gradient(to bottom, transparent, var(--border-strong) 5%, var(--border-strong) 95%, transparent);
}
.tl {
  position: relative;
  padding-left: 50px;
  margin-bottom: 28px;
}
.tl:last-child { margin-bottom: 0; }
.tl__dot {
  position: absolute;
  left: 4px; top: 22px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--primary);
  box-shadow: 0 0 0 4px rgba(129, 140, 248, .12);
}
.tl:first-child .tl__dot {
  background: var(--grad);
  border-color: transparent;
  box-shadow: 0 0 0 4px rgba(129, 140, 248, .2), 0 0 24px rgba(129, 140, 248, .55);
}
.tl__card {
  padding: 26px 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}
.tl__card:hover { transform: translateX(4px); border-color: var(--border-strong); }

.tl__meta {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  margin-bottom: 10px;
}
.tl__date {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: .03em;
}
.tl__pill {
  padding: 3px 9px;
  background: rgba(52, 211, 153, .14);
  border: 1px solid rgba(52, 211, 153, .3);
  color: #6ee7b7;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.tl h3 {
  margin: 0 0 4px;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -.02em;
}
.tl__company {
  color: var(--primary);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 14px;
}
.tl ul {
  margin: 0;
  padding-left: 20px;
  color: var(--text-soft);
  font-size: 15px;
}
.tl ul li { margin-bottom: 8px; }
.tl ul li::marker { color: var(--primary); }
.tl strong { color: var(--text); font-weight: 600; }

/* ───────── Cards (Projects) ───────── */
.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
@media (max-width: 880px) { .cards { grid-template-columns: 1fr; } }

.card {
  position: relative;
  padding: 30px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  transition: transform .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease);
  overflow: hidden;
}
.card::after {
  content: "";
  position: absolute;
  top: 0; right: 0;
  width: 200px; height: 200px;
  background: radial-gradient(circle at top right, rgba(129, 140, 248, .12), transparent 70%);
  opacity: 0;
  transition: opacity .35s var(--ease);
  pointer-events: none;
}
.card:hover { transform: translateY(-4px); border-color: var(--border-strong); background: var(--surface-2); }
.card:hover::after { opacity: 1; }

.card--feature {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, rgba(129, 140, 248, .06), rgba(34, 211, 238, .04)), var(--surface);
}
@media (min-width: 881px) {
  .card--feature {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 40px;
    align-items: start;
  }
  .card--feature .card__metrics { align-self: end; }
}

.card__tag {
  display: inline-block;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11.5px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 14px;
}
.card h3 {
  margin: 0 0 12px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -.02em;
}
.card p {
  margin: 0 0 18px;
  color: var(--text-soft);
  font-size: 15px;
}
.card__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 22px;
  padding: 18px;
  background: rgba(0,0,0,.25);
  border: 1px solid var(--border);
  border-radius: 14px;
}
.card__metrics div { text-align: center; }
.card__metrics strong {
  display: block;
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -.02em;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 2px;
}
.card__metrics span { font-size: 12px; color: var(--muted); }

.card__links {
  display: flex; gap: 8px; margin-top: 18px; flex-wrap: wrap;
}
.card__links a {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  color: var(--text-soft);
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}
.card__links a:hover { color: var(--text); border-color: var(--primary); background: rgba(129, 140, 248, .08); }

.cta-strip {
  margin-top: 40px;
  padding: 32px;
  border-radius: var(--r-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
}
.cta-strip h3 { margin: 0 0 4px; font-size: 22px; letter-spacing: -.02em; }
.cta-strip p { margin: 0; color: var(--text-soft); }

/* ───────── Writing & Publications (card grid) ───────── */
.writing {
  list-style: none;
  padding: 0; margin: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 980px) { .writing { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .writing { grid-template-columns: 1fr; } }

.writing__card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  transition: transform .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease);
  overflow: hidden;
}
.writing__card::after {
  content: "";
  position: absolute;
  top: 0; right: 0;
  width: 200px; height: 200px;
  background: radial-gradient(circle at top right, rgba(129, 140, 248, .12), transparent 70%);
  opacity: 0;
  transition: opacity .35s var(--ease);
  pointer-events: none;
}
.writing__card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  background: var(--surface-2);
}
.writing__card:hover::after { opacity: 1; }

.writing__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
}
.writing__venue {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--primary);
}
.writing__date {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .04em;
}
.writing__card h3 {
  margin: 0 0 12px;
  font-size: 20px;
  line-height: 1.25;
  letter-spacing: -.02em;
  font-weight: 700;
}
.writing__card p {
  margin: 0 0 18px;
  color: var(--text-soft);
  font-size: 14.5px;
  flex: 1;
}
.writing__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  align-self: flex-start;
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  color: var(--text-soft);
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}
.writing__link:hover {
  color: var(--text);
  border-color: var(--primary);
  background: rgba(129, 140, 248, .08);
}

/* ───────── Contact ───────── */
.section--contact {
  padding-bottom: 120px;
}
.contact {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}
.contact .kicker { justify-content: center; }
.contact h2 {
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1.04;
  letter-spacing: -.03em;
  font-weight: 800;
  margin: 0 0 22px;
}
.contact__lede {
  color: var(--text-soft);
  font-size: 17px;
  margin: 0 auto 36px;
  max-width: 560px;
}
.contact__actions {
  display: flex; gap: 12px; justify-content: center; flex-wrap: wrap;
  margin-bottom: 56px;
}
.contact__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  text-align: left;
}
@media (max-width: 800px) { .contact__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .contact__grid { grid-template-columns: 1fr; } }
.contact__grid > div {
  padding: 18px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  transition: border-color .25s var(--ease), transform .25s var(--ease);
}
.contact__grid > div:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.contact__grid span {
  display: block;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--muted);
  margin-bottom: 6px;
}
.contact__grid a {
  font-weight: 500;
  font-size: 14.5px;
  word-break: break-word;
}

/* ───────── Footer ───────── */
.footer {
  position: relative; z-index: 1;
  border-top: 1px solid var(--border);
  padding: 28px 0;
  font-size: 13.5px;
  color: var(--muted);
}
.footer__inner {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 14px;
}
.footer a { color: var(--text-soft); }
.footer a:hover { color: var(--text); }

/* ───────── Logo Marquee ───────── */
.marquee-section {
  position: relative; z-index: 1;
  padding: 12px 0 40px;
}
.marquee {
  position: relative;
  width: 100%;
  overflow: hidden;
  padding: 22px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,.015), rgba(255,255,255,0));
  --marquee-fade: 80px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 var(--marquee-fade), #000 calc(100% - var(--marquee-fade)), transparent);
  mask-image: linear-gradient(90deg, transparent, #000 var(--marquee-fade), #000 calc(100% - var(--marquee-fade)), transparent);
}
.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee 50s linear infinite;
  will-change: transform;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__row {
  list-style: none;
  margin: 0; padding: 0;
  display: flex; align-items: center; gap: 56px;
  padding-right: 56px;
}
.marquee__row li {
  display: inline-flex; align-items: center; gap: 12px;
  flex: 0 0 auto;
  transition: transform .2s var(--ease);
}
.marquee__row li:hover { transform: translateY(-2px); }
.marquee__row li:hover img { filter: none; opacity: 1; }
.marquee__row li:hover span { color: var(--text); }
.marquee__row img {
  width: 24px; height: 24px;
  object-fit: contain;
  /* Force monochrome (white) regardless of source brand color */
  filter: brightness(0) invert(1);
  opacity: .55;
  transition: opacity .25s var(--ease), filter .25s var(--ease);
}
.marquee__row span {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 13px;
  letter-spacing: -.01em;
  color: var(--text-soft);
  white-space: nowrap;
}
@keyframes marquee {
  from { transform: translate3d(0, 0, 0); }
  to   { transform: translate3d(-50%, 0, 0); }
}
@media (max-width: 640px) {
  .marquee__row { gap: 36px; padding-right: 36px; }
  .marquee__row img { width: 20px; height: 20px; }
  .marquee__row span { font-size: 12px; }
  .marquee { --marquee-fade: 40px; }
}

/* ───────── Medallion Architecture ───────── */
.medallion {
  background: linear-gradient(135deg, rgba(129, 140, 248, .04), rgba(34, 211, 238, .03));
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 36px 32px 32px;
  position: relative;
  overflow: hidden;
}
.medallion::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: var(--r-xl);
  background:
    radial-gradient(ellipse 600px 200px at 30% 0%, rgba(129, 140, 248, .12), transparent 70%),
    radial-gradient(ellipse 500px 200px at 80% 100%, rgba(34, 211, 238, .08), transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.medallion > * { position: relative; z-index: 1; }

.medallion__svg {
  width: 100%;
  height: auto;
  display: block;
  max-height: 320px;
}
.medallion__svg .m-node circle:nth-child(1) {
  transition: stroke-width .3s var(--ease);
}
.medallion__svg .m-node:hover circle:nth-child(1) {
  stroke-width: 2.5;
}
.medallion__svg text { user-select: none; }

.medallion__legend {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  margin-top: 8px;
}
@media (max-width: 1100px) { .medallion__legend { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 720px) {
  .medallion__legend { grid-template-columns: repeat(2, 1fr); }
  .medallion { padding: 24px 18px 20px; }
}
@media (max-width: 460px) { .medallion__legend { grid-template-columns: 1fr; } }

.medallion__layer {
  padding: 16px 16px 18px;
  background: rgba(0, 0, 0, .25);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: border-color .25s var(--ease), transform .25s var(--ease);
}
.medallion__layer:hover {
  border-color: var(--c, var(--border-strong));
  transform: translateY(-2px);
}
.medallion__pill {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--c);
  background: color-mix(in srgb, var(--c) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--c) 35%, transparent);
  margin-bottom: 10px;
}
.medallion__layer p {
  margin: 0;
  font-size: 13.5px;
  color: var(--text-soft);
  line-height: 1.5;
}
.medallion__layer strong { color: var(--text); font-weight: 600; }

@media (max-width: 720px) {
  .medallion__svg { max-height: none; min-height: 220px; }
}

/* ───────── Research section ───────── */
.research {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
@media (max-width: 880px) { .research { grid-template-columns: 1fr; } }

.research__card {
  position: relative;
  padding: 30px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  transition: transform .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease);
  display: flex;
  flex-direction: column;
}
.research__card:hover { transform: translateY(-4px); border-color: var(--border-strong); background: var(--surface-2); }
.research__card--featured {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, rgba(167, 139, 250, .06), rgba(34, 211, 238, .05)), var(--surface);
}
.research__card--placeholder {
  background: repeating-linear-gradient(45deg, rgba(255,255,255,.012) 0 12px, transparent 12px 24px), var(--surface);
  border-style: dashed;
  border-color: rgba(255,255,255,.12);
}
.research__card--code {
  background: linear-gradient(135deg, rgba(129, 140, 248, .04), rgba(0, 0, 0, .2)), var(--surface);
}

.research__head {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  margin-bottom: 12px;
}
.research__tag {
  display: inline-block;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11.5px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--primary);
}
.research__pill {
  padding: 3px 10px;
  background: rgba(52, 211, 153, .14);
  border: 1px solid rgba(52, 211, 153, .3);
  color: #6ee7b7;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.research__card h3 {
  margin: 0 0 12px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.25;
}
.research__card p {
  margin: 0 0 18px;
  color: var(--text-soft);
  font-size: 15px;
}
.research__card strong { color: var(--text); font-weight: 600; }
.research__placeholder-note {
  color: var(--muted) !important;
  font-style: italic;
}
.research__placeholder-note em {
  color: var(--text-soft);
  font-style: normal;
  font-weight: 500;
}

.research__diagram {
  margin: 8px 0 18px;
  padding: 16px;
  background: rgba(0, 0, 0, .25);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.research__diagram svg {
  width: 100%;
  height: auto;
  display: block;
}
.research__diagram--placeholder {
  background: rgba(0, 0, 0, .15);
  border-style: dashed;
  border-color: rgba(255, 255, 255, .08);
}

.research__meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}
.research__meta > div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.research__meta span {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--muted);
}
.research__meta strong {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text);
  word-break: break-word;
}
.research__meta a {
  font-size: 13.5px;
  color: var(--primary);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  word-break: break-word;
}
.research__meta a:hover { color: var(--accent-2); }
.research__meta--empty strong { color: var(--muted); font-weight: 400; }

@media (max-width: 560px) {
  .research__meta { grid-template-columns: 1fr; }
}

/* Research card image (DCGAN, CNN samples) */
.research__visual {
  margin: 0 0 18px;
  padding: 0;
  background: rgba(0, 0, 0, .35);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  position: relative;
}
.research__visual img {
  width: 100%;
  height: auto;
  display: block;
  background: #0a0a0f;
}
.research__visual figcaption {
  padding: 10px 14px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11.5px;
  color: var(--muted);
  letter-spacing: .04em;
  border-top: 1px solid var(--border);
  background: rgba(0, 0, 0, .25);
}

/* ───────── Architecture spec (e.g. DCGAN G/D layers) ───────── */
.arch-spec {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 0 0 18px;
  padding: 16px;
  background: rgba(0, 0, 0, .25);
  border: 1px solid var(--border);
  border-radius: 12px;
}
@media (max-width: 520px) { .arch-spec { grid-template-columns: 1fr; } }

.arch-spec__col {
  --c: var(--primary);
  padding: 14px 14px 10px;
  background: rgba(255, 255, 255, .015);
  border: 1px solid var(--border);
  border-radius: 10px;
  position: relative;
}
.arch-spec__col--gen { --c: #a78bfa; }
.arch-spec__col--disc { --c: #fbbf24; }
.arch-spec__col::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 32px; height: 2px;
  background: var(--c);
  border-radius: 0 0 4px 0;
}
.arch-spec__col header {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--border);
}
.arch-spec__label {
  font-family: 'Inter', system-ui;
  font-size: 12px;
  font-weight: 700;
  color: var(--c);
  letter-spacing: .04em;
}
.arch-spec__sub {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 9.5px;
  letter-spacing: .04em;
  color: var(--muted);
}
.arch-spec__layers {
  list-style: none;
  padding: 0; margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.arch-spec__layers li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 5px 8px;
  border-radius: 5px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  background: rgba(255, 255, 255, .015);
  border: 1px solid transparent;
  transition: border-color .2s var(--ease), background .2s var(--ease);
}
.arch-spec__layers li:hover {
  background: rgba(255, 255, 255, .03);
  border-color: color-mix(in srgb, var(--c) 30%, transparent);
}
.arch-spec__layer {
  color: var(--text-soft);
  font-weight: 500;
}
.arch-spec__shape {
  color: var(--c);
  font-weight: 600;
  white-space: nowrap;
}

/* ───────── NBF Before/After Slider ───────── */
.slider {
  --handle: 50%;
  max-width: 580px;
  margin: 4px auto 22px;
}
.slider__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.slider__caption {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
}
.slider__caption-mono {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--primary);
}
.slider__caption-hint {
  font-size: 11.5px;
  color: var(--muted);
  letter-spacing: .04em;
}
.slider__tabs {
  display: inline-flex;
  background: rgba(0, 0, 0, .35);
  padding: 4px;
  border-radius: 999px;
  border: 1px solid var(--border);
}
.slider__tabs button {
  padding: 6px 14px;
  border-radius: 999px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--muted);
  cursor: pointer;
  transition: color .2s var(--ease), background .25s var(--ease);
}
.slider__tabs button:hover { color: var(--text); }
.slider__tabs button.is-active {
  background: var(--grad);
  color: #07070b;
  font-weight: 600;
}

.slider__viewer {
  position: relative;
  aspect-ratio: 1 / 1;
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
  background: #050507;
  cursor: ew-resize;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}
.slider__img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: contain;
  image-rendering: -webkit-optimize-contrast;
  display: block;
  pointer-events: none;
  background: #050507;
}
.slider__img--after {
  clip-path: inset(0 0 0 var(--handle));
  -webkit-clip-path: inset(0 0 0 var(--handle));
}
.slider__chip {
  position: absolute;
  top: 12px;
  padding: 5px 10px;
  background: rgba(7, 7, 11, .82);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 10.5px;
  letter-spacing: .12em;
  color: var(--text);
  pointer-events: none;
  z-index: 2;
}
.slider__chip--before { left: 12px; color: #fca5a5; border-color: rgba(248, 113, 113, .35); }
.slider__chip--after  { right: 12px; color: #6ee7b7; border-color: rgba(52, 211, 153, .4); }

.slider__handle {
  position: absolute;
  top: 0; bottom: 0;
  left: var(--handle);
  width: 0;
  transform: translateX(-1px);
  pointer-events: none;
  z-index: 3;
}
.slider__handle-line {
  position: absolute;
  top: 0; bottom: 0; left: 0;
  width: 2px;
  background: rgba(255, 255, 255, .85);
  box-shadow: 0 0 18px rgba(255, 255, 255, .45);
}
.slider__handle-knob {
  position: absolute;
  top: 50%; left: 1px;
  transform: translate(-50%, -50%);
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(7, 7, 11, .9);
  border: 2px solid #fff;
  box-shadow: 0 6px 24px rgba(0, 0, 0, .45), 0 0 0 4px rgba(129, 140, 248, .15);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  pointer-events: auto;
}
.slider__viewer:active { cursor: grabbing; }
@media (max-width: 600px) {
  .slider__head { flex-direction: column; align-items: flex-start; }
}

/* Research metadata anchor styling (used for repo links) */
.research__meta a {
  font-size: 13.5px;
  color: var(--primary);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-weight: 500;
  transition: color .2s var(--ease);
}
.research__meta a:hover { color: var(--accent-2); }

/* Code block */
.codeblock {
  border-radius: 14px;
  overflow: hidden;
  background: rgba(7, 7, 11, .85);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
}
.codeblock__bar {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 16px;
  background: rgba(255, 255, 255, .03);
  border-bottom: 1px solid var(--border);
}
.codeblock__title {
  margin-left: 8px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 12px;
  color: var(--muted);
}
.codeblock__body {
  margin: 0;
  padding: 20px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--text-soft);
  overflow-x: auto;
  white-space: pre;
}
.codeblock__body code { font: inherit; color: inherit; }
.codeblock__body .ck { color: #c4b5fd; }       /* keywords */
.codeblock__body .cf { color: #93c5fd; }       /* function names */
.codeblock__body .cs { color: #71717a; font-style: italic; } /* docstrings/comments */
.codeblock__body .cstr { color: #6ee7b7; }     /* strings */
.codeblock__body .cn { color: #fbbf24; }       /* numbers */

/* ───────── Reveal animation ───────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .bg__blob { animation: none; }
  .hero__badge .dot { animation: none; }
  .terminal__body .cur { animation: none; }
}