:root {
  --black: #050505;
  --white: #f4f1ea;
  --soft: #dfdbd2;
  --muted: #8d8980;
  --line: rgba(244, 241, 234, 0.16);
  --line-dark: rgba(5, 5, 5, 0.14);
  --max: 1680px;
  --pad: clamp(18px, 3.4vw, 58px);
  background: var(--black);
  color: var(--white);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: geometricPrecision;
}

* {
  box-sizing: border-box;
}

html {
  overflow-x: hidden;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--black);
}

a {
  color: inherit;
  text-decoration: none;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 60;
  width: 100%;
  height: 2px;
  background: var(--white);
  transform: scaleX(0);
  transform-origin: left;
  opacity: 0.86;
}

.site-nav {
  position: fixed;
  z-index: 30;
  top: 0;
  left: 0;
  right: 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 20px var(--pad);
  color: var(--white);
  mix-blend-mode: difference;
}

.brand-mark,
.nav-links,
.nav-cta,
.kicker,
.outline-link,
.watch-link {
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.brand-mark {
  font-weight: 800;
}

.nav-links {
  display: flex;
  gap: clamp(18px, 2.4vw, 36px);
}

.nav-links span,
.nav-cta span,
.kicker span,
.outline-link span {
  display: block;
  margin-top: 5px;
  letter-spacing: 0;
  text-transform: none;
  font-size: 10px;
  font-weight: 500;
  opacity: 0.72;
}

.watch-link span {
  display: block;
  margin-top: 5px;
  letter-spacing: 0;
  text-transform: none;
  font-size: 10px;
  opacity: 0.62;
}

.nav-links a {
  opacity: 0.74;
  transition: opacity 200ms ease;
}

.nav-links a.is-active,
.nav-links a:hover {
  opacity: 1;
}

.nav-cta {
  justify-self: end;
  border: 1px solid currentColor;
  border-radius: 999px;
  padding: 12px 16px;
}

.hero-vast {
  position: relative;
  min-height: 100svh;
  isolation: isolate;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  padding: 104px var(--pad) clamp(34px, 5vw, 70px);
}

.hero-bg,
.hero-shade {
  position: absolute;
  inset: 0;
}

.hero-bg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.22) contrast(1.05) brightness(0.78);
  transform: scale(1.02);
  z-index: -3;
  transition: transform 120ms linear;
}

.hero-shade {
  z-index: -2;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.66)),
    radial-gradient(circle at 70% 25%, rgba(255, 255, 255, 0.08), transparent 28%);
}

.hero-content {
  width: min(100%, var(--max));
  margin: 0 auto;
  min-width: 0;
}

.kicker {
  margin: 0;
  color: rgba(244, 241, 234, 0.68);
}

.hero-vast h1 {
  max-width: 900px;
  margin: 18px 0 0;
  font-size: clamp(70px, 9vw, 138px);
  font-weight: 560;
  line-height: 0.86;
  letter-spacing: 0;
}

.title-zh {
  max-width: 560px;
  margin: 18px 0 0;
  color: rgba(244, 241, 234, 0.76);
  font-size: clamp(20px, 2vw, 28px);
  line-height: 1.18;
}

.system-overlay {
  position: absolute;
  right: var(--pad);
  bottom: clamp(110px, 14vw, 230px);
  display: grid;
  gap: 10px;
  width: min(280px, 26vw);
  padding-top: 14px;
  border-top: 1px solid rgba(244, 241, 234, 0.32);
  color: rgba(244, 241, 234, 0.52);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.system-overlay::before,
.system-overlay::after {
  content: "";
  position: absolute;
  width: 110px;
  height: 1px;
  background: rgba(244, 241, 234, 0.22);
  transform-origin: right;
}

.system-overlay::before {
  top: -34px;
  right: 0;
  transform: rotate(-28deg);
}

.system-overlay::after {
  top: 52px;
  right: 120px;
  transform: rotate(18deg);
}

.hero-lower {
  display: grid;
  grid-template-columns: minmax(0, 480px) minmax(180px, auto);
  align-items: end;
  gap: 24px;
  margin-top: clamp(26px, 5vw, 64px);
  min-width: 0;
}

.hero-lower p {
  max-width: 100%;
  margin: 0;
  color: rgba(244, 241, 234, 0.78);
  font-size: clamp(18px, 2vw, 28px);
  line-height: 1.22;
  overflow-wrap: break-word;
}

.hero-lower .zh-note,
.zh-note,
.section-zh,
.footer-zh {
  color: rgba(244, 241, 234, 0.58);
  font-size: 15px;
  line-height: 1.55;
}

.hero-lower .zh-note {
  margin-top: 10px;
  grid-column: 1;
}

.watch-link,
.outline-link {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid currentColor;
  border-radius: 999px;
}

.outline-link {
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  line-height: 1.1;
}

.watch-link {
  align-self: end;
  justify-self: start;
  grid-column: 2;
  grid-row: 1 / span 2;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  line-height: 1.1;
}

.mission-block,
.spec-strip,
.systems-vast,
.roadmap {
  position: relative;
  z-index: 2;
  background: var(--white);
  color: var(--black);
  padding-inline: var(--pad);
}

.mission-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: end;
  padding-top: clamp(80px, 11vw, 150px);
  padding-bottom: clamp(80px, 11vw, 150px);
}

.mission-copy,
.section-head,
.spec-strip,
.system-rows,
.roadmap-grid {
  max-width: var(--max);
  margin-inline: auto;
}

.mission-block .kicker,
.systems-vast .kicker,
.roadmap .kicker {
  color: var(--muted);
}

.mission-block h2,
.section-head h2 {
  max-width: 1180px;
  margin: 18px 0 0;
  font-size: clamp(38px, 6.4vw, 104px);
  font-weight: 540;
  line-height: 0.95;
  letter-spacing: 0;
}

.section-zh {
  max-width: 600px;
  margin: 26px 0 0;
  color: #5d5a54;
}

.spec-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
  padding-top: 0;
  padding-bottom: 0;
}

.spec-strip article {
  min-height: 260px;
  padding: clamp(22px, 3vw, 42px);
  border-left: 1px solid var(--line-dark);
}

.spec-strip article,
.system-row,
.roadmap-grid article,
.runway-card {
  transition:
    opacity 600ms ease,
    transform 700ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

.reveal {
  opacity: 0;
  transform: translateY(46px);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.spec-strip article:last-child {
  border-right: 1px solid var(--line-dark);
}

.spec-strip span,
.system-row span,
.roadmap-grid span,
.runway-card span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.spec-strip strong {
  display: block;
  margin-top: 58px;
  font-size: clamp(24px, 2.4vw, 38px);
  line-height: 1;
}

.spec-strip em {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-size: 15px;
  font-style: normal;
}

.spec-strip p,
.system-row p,
.roadmap-grid p {
  margin: 16px 0 0;
  color: #5d5a54;
  line-height: 1.5;
}

.spec-strip small,
.system-row small,
.roadmap-grid small,
.runway-card small {
  display: block;
  margin-top: 10px;
  color: #777269;
  font-size: 13px;
  line-height: 1.55;
}

.parallax-runway {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(28px, 6vw, 110px);
  min-height: 200vh;
  padding: clamp(90px, 11vw, 160px) var(--pad);
  background: var(--black);
  color: var(--white);
}

.parallax-runway::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, transparent 0 48%, rgba(244, 241, 234, 0.08) 48% 48.1%, transparent 48.1%),
    radial-gradient(circle at var(--cursor-x, 70%) var(--cursor-y, 30%), rgba(244, 241, 234, 0.08), transparent 22%);
  pointer-events: none;
  opacity: 0.8;
}

.sticky-copy {
  position: sticky;
  top: 100px;
  align-self: start;
  max-width: 640px;
}

.sticky-copy h2 {
  margin: 18px 0 0;
  font-size: clamp(46px, 6vw, 96px);
  font-weight: 540;
  line-height: 0.92;
}

.sticky-copy p:last-child {
  margin-top: 24px;
  max-width: 440px;
  color: rgba(244, 241, 234, 0.68);
  line-height: 1.6;
}

.sticky-copy .section-zh,
.sticky-copy .zh-note {
  color: rgba(244, 241, 234, 0.56);
}

.runway-stack {
  display: grid;
  gap: clamp(26px, 5vw, 84px);
}

.runway-card {
  width: min(100%, 720px);
  justify-self: end;
}

.runway-card.is-offset {
  justify-self: start;
}

.runway-card video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: #191919;
  filter: saturate(0.86) contrast(1.04);
  transition:
    transform 900ms cubic-bezier(0.2, 0.7, 0.2, 1),
    filter 600ms ease;
}

.runway-card:hover video {
  transform: scale(1.025);
  filter: saturate(1) contrast(1.08);
}

.runway-card div {
  display: grid;
  grid-template-columns: 0.5fr 1fr;
  gap: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  margin-top: 12px;
}

.runway-card h3 {
  margin: 0;
  font-size: clamp(24px, 3vw, 42px);
  line-height: 0.98;
  font-weight: 520;
}

.runway-card small {
  color: rgba(244, 241, 234, 0.54);
}

.systems-vast,
.roadmap {
  padding-top: clamp(90px, 11vw, 160px);
  padding-bottom: clamp(90px, 11vw, 160px);
}

.system-rows {
  margin-top: clamp(44px, 6vw, 90px);
  border-top: 1px solid var(--line-dark);
}

.system-row {
  display: grid;
  grid-template-columns: 0.18fr minmax(240px, 0.7fr) minmax(260px, 0.8fr);
  gap: 24px;
  align-items: baseline;
  padding: clamp(22px, 3vw, 42px) 0;
  border-bottom: 1px solid var(--line-dark);
}

.system-row h3 {
  margin: 0;
  font-size: clamp(26px, 3.5vw, 58px);
  line-height: 0.94;
  font-weight: 520;
}

.system-row h3 small {
  color: var(--muted);
  font-size: 15px;
}

.system-row p small,
.roadmap-grid p small {
  color: #777269;
}

.roadmap {
  background: #e3ded3;
}

.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: clamp(44px, 6vw, 90px);
  border-top: 1px solid var(--line-dark);
  border-left: 1px solid var(--line-dark);
}

.roadmap-grid article {
  min-height: 320px;
  padding: clamp(22px, 3vw, 40px);
  border-right: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.roadmap-grid h3 {
  margin: 76px 0 0;
  font-size: clamp(26px, 3vw, 46px);
  line-height: 1;
  font-weight: 520;
}

.roadmap-grid h3 small {
  color: var(--muted);
  font-size: 15px;
}

.sticky-footer {
  position: sticky;
  bottom: 0;
  z-index: 1;
  min-height: 86vh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 520px);
  align-items: end;
  gap: clamp(30px, 7vw, 120px);
  padding: clamp(80px, 10vw, 150px) var(--pad) clamp(34px, 5vw, 70px);
  background: var(--black);
  color: var(--white);
}

.sticky-footer::before {
  content: "VIC GUAN LAB / AI FILM DIRECTION / BRAND WORLDS / PRODUCT FUTURES";
  position: absolute;
  left: 0;
  right: 0;
  top: 34px;
  white-space: nowrap;
  color: rgba(244, 241, 234, 0.1);
  font-size: clamp(38px, 7vw, 110px);
  font-weight: 600;
  letter-spacing: 0;
  animation: footer-tape 26s linear infinite;
}

.sticky-footer h2 {
  max-width: 1000px;
  margin: 18px 0 0;
  font-size: clamp(58px, 9vw, 152px);
  line-height: 0.86;
  font-weight: 560;
}

.footer-zh {
  margin: 22px 0 0;
}

.footer-contact {
  border-top: 1px solid var(--line);
  padding-top: 22px;
}

.footer-contact a,
.footer-contact span {
  display: block;
  margin-top: 16px;
  font-size: clamp(24px, 3vw, 44px);
  line-height: 1.05;
}

.footer-contact small {
  display: block;
  margin-top: 32px;
  color: rgba(244, 241, 234, 0.56);
}

@media (max-width: 980px) {
  .site-nav {
    grid-template-columns: 1fr auto;
  }

  .nav-links {
    display: none;
  }

  .hero-lower,
  .mission-block,
  .parallax-runway,
  .sticky-footer {
    grid-template-columns: 1fr;
  }

  .spec-strip,
  .roadmap-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .sticky-copy {
    position: relative;
    top: auto;
  }

  .system-row {
    grid-template-columns: 0.18fr 1fr;
  }

  .system-row p {
    grid-column: 2;
  }
}

@media (max-width: 640px) {
  .nav-cta {
    display: none;
  }

  .hero-vast {
    min-height: 94svh;
  }

  .hero-vast h1 {
    font-size: clamp(52px, 15vw, 62px);
    max-width: 8.5ch;
  }

  .title-zh {
    font-size: 20px;
  }

  .system-overlay {
    display: none;
  }

  .hero-lower {
    max-width: calc(100vw - 36px);
  }

  .hero-lower p {
    width: min(100%, 330px);
    font-size: 16px;
    max-width: calc(100vw - 36px);
  }

  .watch-link {
    grid-column: auto;
    grid-row: auto;
  }

  .spec-strip,
  .roadmap-grid {
    grid-template-columns: 1fr;
  }

  .spec-strip article,
  .roadmap-grid article {
    min-height: 220px;
  }

  .runway-card div,
  .system-row {
    grid-template-columns: 1fr;
  }

  .system-row p {
    grid-column: auto;
  }

  .sticky-footer h2 {
    font-size: clamp(52px, 17vw, 76px);
  }

  .footer-contact a,
  .footer-contact span {
    font-size: 22px;
    word-break: break-word;
  }
}

@keyframes footer-tape {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(-42%);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
  }
}