:root {
  --bg: #000;
  --paper: #0b0d11;
  --panel: rgba(255, 255, 255, .045);
  --panel-strong: rgba(255, 255, 255, .075);
  --line: rgba(255, 255, 255, .12);
  --line-soft: rgba(255, 255, 255, .07);
  --text: #f2f3ef;
  --muted: rgba(242, 243, 239, .66);
  --faint: rgba(242, 243, 239, .42);
  --accent: #ffad63;
  --blue: #9bd7ff;
  --green: #b6f59a;
  --max: 1180px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  min-height: 100vh;
  background: #000;
  color: var(--text);
  font-family: Manrope, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  font-feature-settings: "liga" 1, "kern" 1;
}

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

video {
  display: block;
  width: 100%;
}

.page-noise,
.ambient {
  display: none;
}

.progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 60;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), #fff, var(--blue));
  box-shadow: 0 0 20px rgba(255, 173, 99, .48);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  padding: 0 clamp(22px, 5vw, 72px);
  background: linear-gradient(to bottom, rgba(0, 0, 0, .82), rgba(0, 0, 0, .52));
  border-bottom: 1px solid rgba(255, 255, 255, .06);
  backdrop-filter: blur(20px);
}

.brand,
.top-nav {
  font-family: "IBM Plex Mono", monospace;
  text-transform: uppercase;
  letter-spacing: .18em;
  font-size: 11px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
}

.brand-mark {
  position: relative;
  width: 64px;
  height: 64px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  border-radius: 50%;
}

.brand-mark canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.top-nav {
  display: flex;
  gap: clamp(20px, 4vw, 42px);
  color: var(--muted);
}

.top-nav a {
  transition: color .2s, text-shadow .2s;
}

.top-nav a:hover {
  color: #fff;
  text-shadow: 0 0 18px rgba(155, 215, 255, .32);
}

.article-shell {
  width: min(var(--max), calc(100vw - 44px));
  margin: 0 auto;
}

.article-wide {
  width: min(1440px, calc(100vw - 44px));
  margin: 0 auto;
}

.hero {
  padding: clamp(86px, 12vw, 156px) 0 clamp(48px, 8vw, 86px);
}

.kicker,
.section-label {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--faint);
}

.hero h1 {
  max-width: 980px;
  margin-top: 20px;
  font-family: "Space Grotesk", Manrope, system-ui, sans-serif;
  font-size: clamp(52px, 9vw, 132px);
  line-height: .9;
  letter-spacing: -.075em;
  font-weight: 600;
}

.lede {
  max-width: 780px;
  margin-top: 32px;
  color: var(--muted);
  font-size: clamp(18px, 2.2vw, 24px);
  line-height: 1.65;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 34px;
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  color: var(--faint);
  background: rgba(255, 255, 255, .035);
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.feature-video {
  position: relative;
  margin-bottom: clamp(90px, 11vw, 150px);
  border: 1px solid var(--line);
  border-radius: 34px;
  overflow: hidden;
  background: #0b0d0f;
  box-shadow: 0 34px 130px rgba(0, 0, 0, .62);
}

.feature-video video {
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.video-caption {
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, .11);
  border-radius: 18px;
  background: rgba(5, 6, 8, .58);
  backdrop-filter: blur(18px);
}

.video-caption span {
  color: var(--accent);
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.video-caption p {
  color: rgba(255, 255, 255, .78);
  font-size: 13px;
}

.article-grid {
  display: grid;
  grid-template-columns: 190px minmax(0, 760px);
  gap: clamp(38px, 7vw, 92px);
  align-items: start;
}

.toc {
  position: sticky;
  top: 116px;
  display: grid;
  gap: 11px;
  padding-top: 8px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--faint);
}

.toc a {
  transition: color .2s, transform .2s;
}

.toc a:hover,
.toc a.active {
  color: #fff;
  transform: translateX(4px);
}

.prose-section {
  padding-bottom: clamp(70px, 10vw, 126px);
}

.prose-section h2,
.section-intro h2 {
  margin-top: 16px;
  font-family: "Space Grotesk", Manrope, system-ui, sans-serif;
  font-size: clamp(34px, 5vw, 66px);
  line-height: 1;
  letter-spacing: -.055em;
  font-weight: 500;
}

.prose-section p:not(.section-label),
.section-intro p:not(.section-label) {
  margin-top: 22px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.82;
}

blockquote {
  margin-top: 34px;
  padding: 26px 30px;
  border-left: 2px solid var(--accent);
  border-radius: 0 22px 22px 0;
  background: rgba(255, 255, 255, .045);
  color: rgba(255, 255, 255, .84);
  font-family: "Space Grotesk", Manrope, sans-serif;
  font-size: clamp(21px, 3vw, 32px);
  line-height: 1.28;
  letter-spacing: -.035em;
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 34px;
}

.principle-grid div {
  min-height: 210px;
  padding: 24px;
  border: 1px solid var(--line-soft);
  border-radius: 24px;
  background: var(--panel);
}

.principle-grid span,
.demo-card span {
  color: var(--accent);
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.principle-grid h3 {
  margin-top: 30px;
  font-family: "Space Grotesk", Manrope, sans-serif;
  font-size: 25px;
  line-height: 1;
  letter-spacing: -.04em;
  font-weight: 500;
}

.principle-grid p {
  margin-top: 14px !important;
  font-size: 14px !important;
  line-height: 1.65 !important;
}

.demo-section {
  padding: clamp(86px, 12vw, 150px) 0;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.section-intro {
  width: min(760px, calc(100vw - 44px));
  margin: 0 auto clamp(46px, 7vw, 86px);
}

.demo-list {
  display: grid;
  gap: clamp(52px, 8vw, 96px);
}

.demo-card {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr);
  gap: clamp(24px, 5vw, 70px);
  align-items: center;
}

.demo-card.reverse {
  grid-template-columns: minmax(280px, .65fr) minmax(0, 1.35fr);
}

.demo-card.reverse video {
  order: 2;
}

.demo-card video {
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: #0b0d0f;
  box-shadow: 0 30px 100px rgba(0, 0, 0, .5);
}

.demo-card h3 {
  margin-top: 16px;
  font-family: "Space Grotesk", Manrope, sans-serif;
  font-size: clamp(27px, 4vw, 48px);
  line-height: 1;
  letter-spacing: -.052em;
  font-weight: 500;
}

.demo-card p {
  margin-top: 18px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
}

.tail-grid {
  padding-top: clamp(84px, 12vw, 150px);
}

.status-panel {
  padding: 34px;
  margin-bottom: 90px;
  border: 1px solid var(--line-soft);
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(255, 255, 255, .065), rgba(255, 255, 255, .035));
}

.final-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.final-links a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: rgba(255, 255, 255, .78);
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  transition: background .2s, color .2s, transform .2s;
}

.final-links a:hover {
  color: #fff;
  background: rgba(255, 255, 255, .06);
  transform: translateY(-2px);
}

@media (max-width: 900px) {
  .article-grid,
  .demo-card,
  .demo-card.reverse {
    grid-template-columns: 1fr;
  }

  .toc {
    display: none;
  }

  .demo-card.reverse video {
    order: 0;
  }

  .principle-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .site-header {
    height: 68px;
    padding-inline: 18px;
  }

  .brand span:last-child {
    display: none;
  }

  .top-nav,
  .brand {
    font-size: 10px;
    letter-spacing: .1em;
  }

  .article-shell,
  .article-wide,
  .section-intro {
    width: min(100% - 28px, var(--max));
  }

  .hero {
    padding-top: 76px;
  }

  .hero h1 {
    font-size: clamp(46px, 16vw, 76px);
  }

  .video-caption {
    position: static;
    border-radius: 0;
    border-inline: 0;
    border-bottom: 0;
  }

  .status-panel {
    padding: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .001ms !important;
  }
}