/* =========================================================
   Alan Chan — Quality Engineer · Portfolio
   ========================================================= */

:root {
  --bg: #07080c;
  --bg-soft: #0c0e15;
  --panel: #11131c;
  --ink: #ecebe4;
  --ink-dim: #9b9eac;
  --ink-faint: #595d6c;
  --line: rgba(236, 235, 228, 0.10);
  --line-soft: rgba(236, 235, 228, 0.06);

  --accent: #c8ff4d;       /* acid lime — "pass" / signal */
  --accent-ink: #0a0c05;
  --accent2: #6e7bff;      /* electric indigo — depth */
  --warn: #ff6b5e;         /* coral — "fail", used sparingly */

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --pad: clamp(1.25rem, 5vw, 7rem);
  --maxw: 1600px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-io: cubic-bezier(0.65, 0, 0.35, 1);
}

/* ---------- reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; margin: 0; padding: 0; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 6rem; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.is-locked { overflow: hidden; height: 100vh; }

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img, canvas { display: block; }
em { font-style: normal; color: var(--accent); }

::selection { background: var(--accent); color: var(--accent-ink); }

.dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  display: inline-block;
  box-shadow: 0 0 0 0 rgba(200, 255, 77, 0.6);
  animation: pulse 2.4s var(--ease-io) infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(200,255,77,0.55); }
  70%  { box-shadow: 0 0 0 8px rgba(200,255,77,0); }
  100% { box-shadow: 0 0 0 0 rgba(200,255,77,0); }
}

/* ---------- WebGL canvas ---------- */
.webgl {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 1.6s ease;
}
.webgl.is-ready { opacity: 1; }

/* ---------- grain ---------- */
.grain {
  position: fixed;
  inset: -50%;
  z-index: 2;
  pointer-events: none;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

/* =========================================================
   Preloader
   ========================================================= */
.preloader {
  position: fixed; inset: 0; z-index: 100;
  background: var(--bg);
  display: grid; place-items: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
.preloader.is-done { opacity: 0; visibility: hidden; }
.preloader__inner { width: min(80vw, 460px); text-align: left; }
.preloader__count {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 12vw, 7rem);
  font-weight: 500; line-height: 1; letter-spacing: -0.03em;
}
.preloader__count i { font-style: normal; color: var(--ink-faint); font-size: 0.35em; }
.preloader__label { margin: 1rem 0 1.4rem; }
.preloader__status {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--ink-dim);
}
.preloader__bar { height: 2px; background: var(--line); overflow: hidden; }
.preloader__bar span { display: block; height: 100%; width: 0%; background: var(--accent); transition: width 0.2s linear; }

/* =========================================================
   Custom cursor
   ========================================================= */
.cursor { position: fixed; top: 0; left: 0; z-index: 90; pointer-events: none; mix-blend-mode: difference; }
.cursor__dot {
  position: absolute; width: 6px; height: 6px; border-radius: 50%;
  background: #fff; transform: translate(-50%, -50%);
}
.cursor__ring {
  position: absolute; width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.7); transform: translate(-50%, -50%);
  transition: width 0.3s var(--ease), height 0.3s var(--ease), background 0.3s var(--ease);
}
.cursor.is-hover .cursor__ring { width: 64px; height: 64px; background: rgba(255,255,255,0.08); }
.cursor.is-down .cursor__ring { width: 28px; height: 28px; }
.cursor__label {
  position: absolute; transform: translate(-50%, -50%);
  font-family: var(--font-mono); font-size: 0.6rem; text-transform: uppercase;
  letter-spacing: 0.1em; color: #fff; opacity: 0;
  transition: opacity 0.25s var(--ease);
}
.cursor.is-hover .cursor__label { opacity: 1; }
@media (hover: none) { .cursor { display: none; } }

/* =========================================================
   Scroll progress
   ========================================================= */
.scroll-progress { position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 80; background: transparent; }
.scroll-progress span { display: block; height: 100%; width: 0%; background: var(--accent); transform-origin: left; }

/* =========================================================
   Navigation
   ========================================================= */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 70;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.4rem var(--pad);
  mix-blend-mode: difference;
}
.nav__brand { display: flex; align-items: baseline; gap: 0.55rem; font-family: var(--font-display); }
.nav__mark {
  font-weight: 700; font-size: 1.05rem; letter-spacing: -0.02em;
  border: 1px solid rgba(255,255,255,0.5); border-radius: 6px; padding: 0.2rem 0.4rem;
  color: #fff;
}
.nav__brandfull { font-size: 0.95rem; color: #fff; opacity: 0.85; }
.nav__links { display: flex; gap: 2.2rem; }
.nav__links a { font-size: 0.86rem; color: #fff; opacity: 0.78; transition: opacity 0.3s var(--ease); position: relative; }
.nav__links a span { font-family: var(--font-mono); font-size: 0.62rem; color: var(--accent); margin-right: 0.25rem; opacity: 0.9; }
.nav__links a:hover { opacity: 1; }
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: -5px; height: 1px; width: 0;
  background: #fff; transition: width 0.35s var(--ease);
}
.nav__links a:hover::after { width: 100%; }
.nav__status {
  display: flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.04em;
  color: #fff; opacity: 0.85;
}
.nav__burger { display: none; }

/* mobile menu */
.mobile-menu {
  position: fixed; inset: 0; z-index: 60;
  background: var(--bg-soft);
  padding: 6rem var(--pad) 2rem;
  display: flex; flex-direction: column; justify-content: space-between;
  transform: translateY(-100%);
  transition: transform 0.6s var(--ease);
  visibility: hidden;
}
.mobile-menu.is-open { transform: translateY(0); visibility: visible; }
.mobile-menu__links { display: flex; flex-direction: column; gap: 0.4rem; }
.mobile-menu__links a {
  font-family: var(--font-display); font-size: clamp(2.4rem, 12vw, 4rem);
  font-weight: 500; letter-spacing: -0.02em; line-height: 1.1;
  display: flex; align-items: baseline; gap: 0.8rem;
}
.mobile-menu__links a span { font-family: var(--font-mono); font-size: 0.9rem; color: var(--accent); }
.mobile-menu__foot {
  display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: 0.8rem; color: var(--ink-dim);
  border-top: 1px solid var(--line); padding-top: 1.4rem;
}
.mobile-menu__foot a { color: var(--ink); }

/* =========================================================
   Layout primitives
   ========================================================= */
main { position: relative; z-index: 3; }
section { position: relative; padding-left: var(--pad); padding-right: var(--pad); }

.section-head { max-width: var(--maxw); margin: 0 auto; padding-top: clamp(5rem, 12vh, 11rem); }
.section-head__index,
.about__index,
.contact__index {
  font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--ink-dim);
  display: flex; align-items: center; gap: 0.5rem; margin-bottom: 1.6rem;
}
.section-head__index span,
.about__index span,
.contact__index span { color: var(--accent); }
.section-head__title {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(2.6rem, 7vw, 6rem); line-height: 0.98; letter-spacing: -0.03em;
}

/* =========================================================
   Hero
   ========================================================= */
.hero {
  min-height: 100svh;
  display: flex; flex-direction: column; justify-content: center;
  padding-top: clamp(7rem, 16vh, 12rem); padding-bottom: 4rem;
  max-width: var(--maxw); margin: 0 auto;
}
.hero__inner { width: 100%; }
.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--ink-dim); margin-bottom: clamp(1.5rem, 4vh, 3rem);
}
.hero__title {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(3rem, 11.5vw, 12rem);
  line-height: 0.92; letter-spacing: -0.045em;
}
.hero__title .line { display: block; overflow: hidden; }
.hero__title .word { display: inline-block; }
.hero__title .accent { color: var(--accent); }

.hero__bottom {
  display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between;
  gap: 2rem; margin-top: clamp(2rem, 6vh, 4.5rem);
}
.hero__lede {
  max-width: 38ch; font-size: clamp(1rem, 1.4vw, 1.2rem);
  color: var(--ink-dim); line-height: 1.55;
}
.hero__lede em { color: var(--accent); }
.hero__meta { display: flex; gap: 2.5rem; }
.hero__meta-item { display: flex; flex-direction: column; gap: 0.3rem; }
.hero__meta-item .k {
  font-family: var(--font-mono); font-size: 0.68rem; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--ink-faint);
}
.hero__meta-item .v { font-size: 0.92rem; color: var(--ink); }

.hero__scroll {
  position: absolute; left: var(--pad); bottom: 2.2rem;
  display: flex; flex-direction: column; align-items: center; gap: 0.6rem;
  font-family: var(--font-mono); font-size: 0.64rem; text-transform: uppercase; letter-spacing: 0.15em;
  color: var(--ink-dim);
}
.hero__scroll-line { width: 1px; height: 48px; background: linear-gradient(var(--accent), transparent); animation: scrolldn 2s var(--ease-io) infinite; transform-origin: top; }
@keyframes scrolldn { 0% { transform: scaleY(0); } 40% { transform: scaleY(1); } 100% { transform: scaleY(0); transform-origin: bottom; } }

.hero__ticker {
  position: absolute; right: 0; bottom: 2.2rem; max-width: 46vw; overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 18%, #000 82%, transparent);
}
.hero__ticker-track {
  display: flex; gap: 1.1rem; white-space: nowrap;
  font-family: var(--font-mono); font-size: 0.74rem; color: var(--ink-faint);
  animation: ticker 26s linear infinite;
}
.hero__ticker-track span:nth-child(odd) { color: var(--ink-dim); }
@keyframes ticker { to { transform: translateX(-50%); } }

/* =========================================================
   About / Manifesto
   ========================================================= */
.about { max-width: var(--maxw); margin: 0 auto; padding-top: clamp(7rem, 18vh, 16rem); padding-bottom: clamp(4rem, 8vh, 7rem); }
.about__statement {
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(1.6rem, 4.4vw, 4rem); line-height: 1.18; letter-spacing: -0.02em;
  max-width: 24ch;
}
@media (min-width: 720px) { .about__statement { max-width: 80%; } }
.manifesto .w {
  display: inline-block;
  color: var(--ink-faint);
  transition: color 0.4s var(--ease);
}
.manifesto .w.is-lit { color: var(--ink); }
.manifesto em { color: var(--accent); }

.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  margin-top: clamp(3.5rem, 9vh, 7rem);
  background: var(--line-soft);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.stat { background: var(--bg); padding: clamp(1.6rem, 3vw, 2.6rem) 1.2rem clamp(1.6rem, 3vw, 2.6rem) 0; }
.stat__num {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(2.2rem, 5vw, 4.4rem); line-height: 1; letter-spacing: -0.03em;
  color: var(--ink);
}
.stat__num .sfx { color: var(--accent); }
.stat__label { margin-top: 0.7rem; font-size: 0.82rem; color: var(--ink-dim); max-width: 18ch; }

/* =========================================================
   Selected Work
   ========================================================= */
.work { padding-bottom: clamp(4rem, 10vh, 9rem); }
.work__track {
  max-width: var(--maxw); margin: clamp(3rem, 8vh, 6rem) auto 0;
  display: grid; gap: clamp(2.5rem, 6vh, 5rem);
}
.case {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(1.5rem, 4vw, 4rem);
  align-items: center;
  border-top: 1px solid var(--line); padding-top: clamp(2rem, 5vh, 3.5rem);
}
.case--flag { grid-template-columns: 1.2fr 1fr; }
.case__media { position: relative; }
.case__tag {
  position: absolute; top: 1rem; left: 1rem; z-index: 2;
  font-family: var(--font-mono); font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--ink); background: rgba(7,8,12,0.55); backdrop-filter: blur(8px);
  border: 1px solid var(--line); padding: 0.35rem 0.7rem; border-radius: 100px;
}
.case__visual {
  position: relative; aspect-ratio: 16 / 11; border-radius: 14px; overflow: hidden;
  border: 1px solid var(--line);
  display: grid; place-items: center;
  background: linear-gradient(135deg, #0e1018, #14131d);
  transition: transform 0.6s var(--ease);
}
.case:hover .case__visual { transform: translateY(-6px); }
.case__big {
  font-family: var(--font-display); font-weight: 600; letter-spacing: -0.04em;
  font-size: clamp(2.5rem, 6vw, 5rem); color: rgba(236,235,228,0.14);
}
.case__visual--atlas { background: radial-gradient(120% 120% at 0% 0%, #1a2230, #0c0e15); }
.case__visual--pulse { background: radial-gradient(120% 120% at 100% 0%, #221a2e, #0c0e15); }
.case__visual--vela  { background: radial-gradient(120% 120% at 50% 100%, #102019, #0c0e15); }

.case__visual--spectra {
  background:
    radial-gradient(120% 120% at 80% 0%, rgba(110,123,255,0.18), transparent 60%),
    radial-gradient(120% 120% at 10% 100%, rgba(200,255,77,0.16), transparent 55%),
    #0a0c13;
}
.case__logo {
  position: relative; z-index: 2;
  font-family: var(--font-display); font-weight: 700; letter-spacing: -0.04em;
  font-size: clamp(2.6rem, 7vw, 5.5rem); color: var(--ink);
}
.spectra-grid {
  position: absolute; inset: 0; z-index: 1;
  display: grid; grid-template-columns: repeat(4, 1fr); grid-template-rows: repeat(3, 1fr);
  padding: 14%; gap: 10%;
  opacity: 0.6;
}
.spectra-grid span {
  border-radius: 4px;
  background: rgba(236,235,228,0.05);
  border: 1px solid var(--line);
  animation: gridpass 4s var(--ease-io) infinite;
}
.spectra-grid span:nth-child(3n) { animation-delay: 0.4s; }
.spectra-grid span:nth-child(3n+1) { animation-delay: 0.9s; }
.spectra-grid span:nth-child(4n) { animation-delay: 1.4s; }
.spectra-grid span:nth-child(5n) { animation-delay: 0.6s; }
@keyframes gridpass {
  0%, 100% { background: rgba(236,235,228,0.04); }
  50% { background: rgba(200,255,77,0.22); border-color: rgba(200,255,77,0.4); }
}

.case__body { }
.case__num { font-family: var(--font-mono); font-size: 0.75rem; color: var(--accent); letter-spacing: 0.1em; }
.case__title {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(1.6rem, 3.4vw, 2.8rem); line-height: 1.05; letter-spacing: -0.02em;
  margin: 0.8rem 0 1rem;
}
.case__desc { color: var(--ink-dim); max-width: 46ch; font-size: clamp(0.95rem, 1.1vw, 1.05rem); }
.case__meta { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1.4rem 0; }
.case__meta li {
  font-family: var(--font-mono); font-size: 0.7rem; color: var(--ink-dim);
  border: 1px solid var(--line); border-radius: 100px; padding: 0.3rem 0.7rem;
}
.case__metrics { display: flex; flex-wrap: wrap; gap: clamp(1.4rem, 3vw, 2.6rem); border-top: 1px solid var(--line); padding-top: 1.3rem; }
.case__metrics b { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.3rem, 2.4vw, 2rem); display: block; letter-spacing: -0.02em; }
.case__metrics span { font-size: 0.74rem; color: var(--ink-faint); }

/* =========================================================
   Stack / layers
   ========================================================= */
.stack { padding-bottom: clamp(4rem, 10vh, 9rem); }
.stack__list { max-width: var(--maxw); margin: clamp(3rem, 8vh, 6rem) auto 0; border-top: 1px solid var(--line); }
.layer {
  display: grid; grid-template-columns: 0.5fr 1.4fr 2fr 1.4fr; gap: 2rem; align-items: center;
  padding: clamp(1.4rem, 3.6vh, 2.6rem) 0;
  border-bottom: 1px solid var(--line);
  position: relative;
  transition: padding-left 0.5s var(--ease);
}
.layer::before {
  content: ""; position: absolute; left: -2vw; top: 0; bottom: 0; width: 0;
  background: linear-gradient(90deg, rgba(200,255,77,0.08), transparent);
  transition: width 0.5s var(--ease); pointer-events: none;
}
.layer:hover { padding-left: 1.4rem; }
.layer:hover::before { width: 40%; }
.layer__no { font-family: var(--font-mono); font-size: 0.8rem; color: var(--accent); }
.layer__name {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(1.4rem, 3vw, 2.4rem); letter-spacing: -0.02em; line-height: 1;
  transition: color 0.4s var(--ease), transform 0.5s var(--ease);
}
.layer:hover .layer__name { color: var(--accent); }
.layer__desc { color: var(--ink-dim); font-size: 0.95rem; max-width: 44ch; }
.layer__tags { display: flex; flex-wrap: wrap; gap: 0.4rem; justify-content: flex-end; }
.layer__tags span {
  font-family: var(--font-mono); font-size: 0.68rem; color: var(--ink-faint);
  border: 1px solid var(--line); border-radius: 100px; padding: 0.25rem 0.6rem;
}

/* =========================================================
   Approach / Terminal
   ========================================================= */
.approach {
  max-width: var(--maxw); margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 6vw, 6rem);
  align-items: center;
  padding-top: clamp(5rem, 12vh, 11rem); padding-bottom: clamp(5rem, 12vh, 11rem);
}
.approach__title {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(2.4rem, 6vw, 5rem); line-height: 0.98; letter-spacing: -0.03em;
  margin: 1.4rem 0 2.4rem;
}
.approach__principles { display: grid; gap: 1.2rem; max-width: 46ch; }
.approach__principles li {
  font-size: 1rem; color: var(--ink-dim); padding-left: 1.6rem; position: relative;
  line-height: 1.55;
}
.approach__principles li::before {
  content: "✓"; position: absolute; left: 0; top: 0; color: var(--accent); font-weight: 700;
}
.approach__principles b { color: var(--ink); font-weight: 600; }

.terminal {
  background: #0a0b11;
  border: 1px solid var(--line);
  border-radius: 14px; overflow: hidden;
  box-shadow: 0 40px 120px -40px rgba(0,0,0,0.8), 0 0 0 1px rgba(200,255,77,0.04);
}
.terminal__bar {
  display: flex; align-items: center; gap: 1rem;
  padding: 0.8rem 1rem; border-bottom: 1px solid var(--line); background: #0c0e15;
}
.terminal__dots { display: flex; gap: 0.45rem; }
.terminal__dots i { width: 11px; height: 11px; border-radius: 50%; background: #2a2d3a; display: block; }
.terminal__dots i:first-child { background: #ff6b5e; }
.terminal__dots i:nth-child(2) { background: #ffd166; }
.terminal__dots i:nth-child(3) { background: var(--accent); }
.terminal__path { font-family: var(--font-mono); font-size: 0.72rem; color: var(--ink-faint); }
.terminal__body {
  font-family: var(--font-mono); font-size: clamp(0.72rem, 1vw, 0.84rem);
  line-height: 1.7; padding: 1.2rem 1.3rem; min-height: 340px;
  white-space: pre-wrap; word-break: break-word;
}
.terminal__body .ln { display: block; }
.terminal__body .c-dim { color: var(--ink-faint); }
.terminal__body .c-pass { color: var(--accent); }
.terminal__body .c-info { color: var(--accent2); }
.terminal__body .c-warn { color: var(--warn); }
.terminal__body .c-ink { color: var(--ink); }
.terminal__cursor { display: inline-block; width: 8px; height: 1em; background: var(--accent); vertical-align: text-bottom; animation: blink 1s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* =========================================================
   Marquee
   ========================================================= */
.marquee {
  padding: 0; overflow: hidden;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  background: var(--bg-soft);
}
.marquee__track {
  display: flex; align-items: center; gap: 2.2rem; white-space: nowrap;
  padding: clamp(1.4rem, 3vw, 2.2rem) 0;
  animation: marquee 32s linear infinite;
}
.marquee__track span {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(1.6rem, 4vw, 3rem); letter-spacing: -0.02em; color: var(--ink);
}
.marquee__track i { color: var(--accent); font-style: normal; font-size: 1rem; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* =========================================================
   Contact
   ========================================================= */
.contact {
  max-width: var(--maxw); margin: 0 auto;
  padding-top: clamp(6rem, 14vh, 12rem); padding-bottom: 2.5rem;
}
.contact__title {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(2.8rem, 11vw, 11rem); line-height: 0.92; letter-spacing: -0.04em;
  margin: 1.8rem 0 clamp(2.5rem, 6vh, 4rem);
}
.contact__title .line { display: block; overflow: hidden; }
.contact__title .accent { color: var(--accent); }

.contact__cta {
  position: relative; display: inline-flex; align-items: center; gap: 1.2rem;
  padding: clamp(1rem, 2vw, 1.5rem) clamp(1.6rem, 3vw, 2.4rem);
  border: 1px solid var(--line); border-radius: 100px; overflow: hidden;
  font-family: var(--font-display); font-size: clamp(1.1rem, 2.6vw, 2rem); font-weight: 500;
  letter-spacing: -0.02em;
}
.contact__cta-bg {
  position: absolute; inset: 0; z-index: 0; background: var(--accent);
  border-radius: 100px; transform: scale(0); transform-origin: center;
  transition: transform 0.55s var(--ease);
}
.contact__cta:hover .contact__cta-bg { transform: scale(1.05); }
.contact__cta-label, .contact__cta-arrow { position: relative; z-index: 1; transition: color 0.4s var(--ease); }
.contact__cta-arrow { transition: color 0.4s var(--ease), transform 0.4s var(--ease); }
.contact__cta:hover .contact__cta-label,
.contact__cta:hover .contact__cta-arrow { color: var(--accent-ink); }
.contact__cta:hover .contact__cta-arrow { transform: translateX(6px); }

.contact__grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem;
  margin-top: clamp(4rem, 10vh, 8rem);
  border-top: 1px solid var(--line); padding-top: 2.4rem;
}
.contact__col { display: flex; flex-direction: column; gap: 0.6rem; }
.contact__col .k {
  font-family: var(--font-mono); font-size: 0.68rem; text-transform: uppercase;
  letter-spacing: 0.12em; color: var(--ink-faint); margin-bottom: 0.4rem;
}
.contact__col a { color: var(--ink-dim); transition: color 0.3s var(--ease); width: fit-content; }
.contact__col a:hover { color: var(--accent); }
.contact__col--clock { align-items: flex-start; }
.contact__time { font-family: var(--font-display); font-size: clamp(1.6rem, 3vw, 2.4rem); letter-spacing: -0.02em; }
.contact__loc { font-family: var(--font-mono); font-size: 0.74rem; color: var(--ink-faint); }

.footer {
  display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between;
  margin-top: clamp(3rem, 8vh, 6rem); padding-top: 1.6rem; border-top: 1px solid var(--line);
  font-family: var(--font-mono); font-size: 0.72rem; color: var(--ink-faint);
}

/* =========================================================
   Reveal helpers (pre-JS hidden state)
   ========================================================= */
.reveal-up { opacity: 0; transform: translateY(28px); }
.is-inview .reveal-up,
.reveal-up.is-inview { opacity: 1; transform: none; }

/* JS-disabled / reduced motion fallback: show everything */
.no-js .reveal-up,
.no-anim .reveal-up { opacity: 1 !important; transform: none !important; }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 1080px) {
  .layer { grid-template-columns: 0.5fr 1.6fr 2fr; }
  .layer__tags { display: none; }
}

@media (max-width: 880px) {
  .nav__links, .nav__status { display: none; }
  .nav__burger {
    display: flex; flex-direction: column; gap: 5px; justify-content: center;
    width: 42px; height: 42px; background: none; border: 1px solid rgba(255,255,255,0.4);
    border-radius: 8px; cursor: pointer;
  }
  .nav__burger span { display: block; width: 18px; height: 1.5px; background: #fff; margin: 0 auto; transition: transform 0.4s var(--ease), opacity 0.3s; }
  .nav__burger.is-open span:first-child { transform: translateY(3.25px) rotate(45deg); }
  .nav__burger.is-open span:last-child { transform: translateY(-3.25px) rotate(-45deg); }

  .hero__ticker { display: none; }
  .hero__bottom { flex-direction: column; align-items: flex-start; gap: 2rem; }

  .case, .case--flag { grid-template-columns: 1fr; gap: 1.6rem; }
  .case__media { order: -1; }

  .approach { grid-template-columns: 1fr; gap: 3rem; }

  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(odd) { border-right: 1px solid var(--line-soft); }
}

@media (max-width: 560px) {
  :root { --pad: 1.25rem; }
  .hero { padding-top: 8rem; }
  .hero__meta { gap: 1.6rem; }
  .layer { grid-template-columns: auto 1fr; gap: 0.6rem 1rem; }
  .layer__no { align-self: start; }
  .layer__desc { grid-column: 1 / -1; }
  .contact__grid { grid-template-columns: 1fr; gap: 1.8rem; }
  .footer { flex-direction: column; gap: 0.4rem; }
  .stats { grid-template-columns: 1fr 1fr; }
  .case__metrics { gap: 1.2rem; }
}

/* =========================================================
   Reduced motion
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal-up { opacity: 1 !important; transform: none !important; }
  .webgl { opacity: 0.5 !important; }
}