:root {
  --bg: #0b0d12;
  --bg-soft: #11141b;
  --fg: #eef0f4;
  --fg-soft: #a8aebb;
  --fg-mute: #6b7180;
  --line: rgba(255, 255, 255, 0.08);
  --accent-a: #ff5b3a;
  --accent-b: #6c5ce7;
  --max: 1100px;
  --max-narrow: 720px;
  --radius: 14px;
  --pad: clamp(1.25rem, 4vw, 2.5rem);

  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --font-display: var(--font-sans);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #fafaf7;
    --bg-soft: #f1f1ec;
    --fg: #15171c;
    --fg-soft: #4a4f5a;
    --fg-mute: #8a8f99;
    --line: rgba(0, 0, 0, 0.08);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: clamp(15px, 1vw + 0.4rem, 17px);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,
svg,
canvas {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}

a:hover {
  color: var(--accent-a);
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
}
.skip:focus {
  left: 1rem;
  top: 1rem;
  background: var(--fg);
  color: var(--bg);
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  z-index: 1000;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  background: color-mix(in oklab, var(--bg) 70%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
}

.site-header nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.9rem var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  font-size: 1.05rem;
}

.brand__mark {
  width: 18px;
  height: 18px;
  border-radius: 5px;
  background: linear-gradient(135deg, var(--accent-a), var(--accent-b));
  box-shadow: 0 0 24px -6px var(--accent-a);
}

.brand__word {
  font-family: var(--font-mono);
}

.nav {
  display: flex;
  gap: clamp(0.75rem, 2vw, 1.6rem);
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.95rem;
  color: var(--fg-soft);
}

.nav a {
  position: relative;
  padding: 0.25rem 0;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -2px;
  height: 1px;
  background: currentColor;
  transition: right 0.25s ease;
}

.nav a:hover::after {
  right: 0;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  height: 100svh;
  min-height: 560px;
  overflow: hidden;
  display: flex;
  align-items: center;
}

#hero-gl,
.hero__fallback {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero__fallback {
  background:
    radial-gradient(60% 60% at 30% 30%, color-mix(in oklab, var(--accent-b) 55%, transparent), transparent 70%),
    radial-gradient(50% 50% at 70% 70%, color-mix(in oklab, var(--accent-a) 55%, transparent), transparent 70%),
    var(--bg);
  filter: saturate(115%);
  animation: drift 24s ease-in-out infinite alternate;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.hero.no-gl .hero__fallback {
  opacity: 1;
}

@keyframes drift {
  from {
    transform: translate3d(-2%, -1%, 0) scale(1.05);
  }
  to {
    transform: translate3d(2%, 1%, 0) scale(1.1);
  }
}

.hero__inner {
  position: relative;
  z-index: 2;
  max-width: var(--max);
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--pad);
}

.hero__eyebrow {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  color: var(--fg-soft);
  margin: 0 0 1rem;
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 7vw, 5.5rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin: 0 0 1.5rem;
  max-width: 18ch;
  text-shadow: 0 2px 30px color-mix(in oklab, var(--bg) 65%, transparent);
}

.hero__sub {
  font-size: clamp(0.95rem, 1.2vw, 1.1rem);
  color: var(--fg-soft);
  margin: 0;
}

.hero__cue {
  position: absolute;
  z-index: 2;
  left: 50%;
  bottom: 2.2rem;
  width: 22px;
  height: 36px;
  border: 1px solid var(--fg-soft);
  border-radius: 12px;
  transform: translateX(-50%);
  opacity: 0.7;
}

.hero__cue span {
  position: absolute;
  left: 50%;
  top: 7px;
  width: 2px;
  height: 8px;
  background: var(--fg-soft);
  border-radius: 1px;
  transform: translateX(-50%);
  animation: cue 1.6s ease-in-out infinite;
}

@keyframes cue {
  0%,
  100% {
    transform: translate(-50%, 0);
    opacity: 1;
  }
  50% {
    transform: translate(-50%, 10px);
    opacity: 0.2;
  }
}

/* ---------- Sections ---------- */
.section {
  padding: clamp(4rem, 10vw, 8rem) 0;
  border-top: 1px solid var(--line);
}

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.container--narrow {
  max-width: var(--max-narrow);
}

.section__kicker,
.footer__kicker {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  color: var(--fg-mute);
  margin: 0 0 0.75rem;
}

.section__title,
.footer__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.9rem, 4vw, 3rem);
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 2.5rem;
}

.prose p {
  font-size: clamp(1.05rem, 1.3vw, 1.2rem);
  color: var(--fg-soft);
  margin: 0 0 1.1rem;
}

.prose em {
  color: var(--fg);
  font-style: normal;
  background: linear-gradient(180deg, transparent 60%, color-mix(in oklab, var(--accent-a) 35%, transparent) 60%);
  padding: 0 0.15em;
}

/* ---------- Timeline ---------- */
.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 1px;
  background: var(--line);
}

.timeline__item {
  display: grid;
  grid-template-columns: clamp(110px, 18%, 170px) 1fr;
  gap: clamp(1rem, 3vw, 2.5rem);
  padding: 1.25rem 0 1.25rem 1.25rem;
  position: relative;
}

.timeline__item::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 1.85rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent-a);
  box-shadow: 0 0 0 4px var(--bg), 0 0 18px -2px var(--accent-a);
}

.timeline__when {
  font-family: var(--font-mono);
  color: var(--fg-mute);
  font-size: 0.85rem;
  padding-top: 0.4rem;
}

.timeline__what h3 {
  margin: 0 0 0.35rem;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

.timeline__what h3 span {
  color: var(--fg-soft);
  font-weight: 500;
}

.timeline__what p {
  margin: 0;
  color: var(--fg-soft);
}

/* ---------- Project cards ---------- */
.cards {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: clamp(0.8rem, 2vw, 1.25rem);
}

.card {
  position: relative;
  padding: 1.5rem 1.5rem 1.25rem;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  isolation: isolate;
  transition: transform 0.35s ease, border-color 0.35s ease;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    400px circle at var(--mx, 50%) var(--my, 0%),
    color-mix(in oklab, var(--accent-a) 22%, transparent),
    transparent 60%
  );
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: -1;
  pointer-events: none;
}

.card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in oklab, var(--accent-a) 50%, var(--line));
}

.card:hover::before {
  opacity: 1;
}

.card__title {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}

.card__pitch {
  margin: 0 0 1rem;
  color: var(--fg-soft);
  font-size: 0.95rem;
}

.chips {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.chips li {
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: color-mix(in oklab, var(--fg) 6%, transparent);
  color: var(--fg-soft);
}

.card__link {
  position: absolute;
  right: 1rem;
  top: 1rem;
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--fg-soft);
  background: color-mix(in oklab, var(--fg) 5%, transparent);
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.card__link:hover {
  color: var(--bg);
  background: var(--accent-a);
  transform: translate(2px, -2px);
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: clamp(3rem, 8vw, 6rem) 0 3rem;
}

.links {
  list-style: none;
  padding: 0;
  margin: 0 0 3rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
}

.links a {
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
}

.footer__fine {
  font-family: var(--font-mono);
  color: var(--fg-mute);
  font-size: 0.8rem;
  margin: 0;
}

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero__fallback,
  .hero__cue span {
    animation: none;
  }
}