:root {
  --bg: #050816;
  --bg-elevated: rgba(11, 18, 40, 0.82);
  --bg-panel: rgba(15, 24, 54, 0.88);
  --line: rgba(132, 166, 255, 0.18);
  --line-strong: rgba(132, 166, 255, 0.34);
  --text: #eef4ff;
  --muted: #98a7c7;
  --accent: #73d2ff;
  --accent-strong: #34b7ff;
  --accent-warm: #ff8b3d;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  --radius-lg: 28px;
  --radius-md: 18px;
  --max-width: 1240px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 18%, rgba(52, 183, 255, 0.16), transparent 24%),
    radial-gradient(circle at 86% 16%, rgba(255, 139, 61, 0.12), transparent 22%),
    radial-gradient(circle at 50% 80%, rgba(100, 128, 255, 0.12), transparent 30%),
    linear-gradient(180deg, #040611 0%, #070b1d 42%, #04070f 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: radial-gradient(circle at center, black 42%, transparent 88%);
}

.page-shell {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
  padding: 22px 0 64px;
}

.site-header,
.hero,
.metrics,
.content-block,
.site-footer {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 700ms ease, transform 700ms ease;
}

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

.site-header {
  position: sticky;
  top: 16px;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 16px 20px;
  margin-bottom: 30px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(8, 12, 28, 0.72);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--text);
  text-decoration: none;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 62px;
  padding: 8px 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(52, 183, 255, 0.22), rgba(255, 139, 61, 0.18));
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.86rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.brand-text,
.site-nav a,
.eyebrow,
.metric-label,
.panel-label,
.demo-tag,
.footer-note {
  font-family: "IBM Plex Mono", monospace;
}

.brand-text {
  color: var(--muted);
  font-size: 0.92rem;
}

.site-nav {
  display: flex;
  gap: 18px;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.84rem;
}

.site-nav a:hover {
  color: var(--text);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 28px;
  align-items: stretch;
  margin-bottom: 26px;
}

.hero-copy,
.hero-panel,
.metric-card,
.info-card,
.demo-card,
.deployment-card,
.evidence-board {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(10, 16, 36, 0.92), rgba(8, 13, 28, 0.84));
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 46px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2 {
  margin: 0;
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.hero h1 {
  max-width: 11ch;
  font-size: clamp(3rem, 5vw, 5.7rem);
}

.hero-text {
  max-width: 56ch;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: #03101a;
  background: linear-gradient(135deg, var(--accent), #b6f2ff);
}

.button-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line-strong);
}

.hero-panel {
  position: relative;
  overflow: hidden;
  min-height: 100%;
  padding: 28px;
}

.hero-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 50% 15%, rgba(115, 210, 255, 0.22), transparent 32%),
    radial-gradient(circle at 15% 75%, rgba(255, 139, 61, 0.12), transparent 24%);
}

.signal-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(7, minmax(22px, 1fr));
  align-items: end;
  gap: 14px;
  min-height: 280px;
  padding: 18px;
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01)),
    rgba(4, 8, 18, 0.66);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.signal-column {
  border-radius: 999px 999px 18px 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), #74ddff 40%, #57a4ff 70%, rgba(46, 72, 156, 0.18));
  box-shadow: 0 0 40px rgba(107, 206, 255, 0.18);
  animation: drift 4.8s ease-in-out infinite;
}

.signal-column.short { height: 36%; animation-delay: -1.2s; }
.signal-column.medium { height: 54%; animation-delay: -2.1s; }
.signal-column.tall { height: 80%; animation-delay: -0.4s; }
.signal-column.pulse { height: 66%; animation-delay: -3s; }

.hero-panel-copy {
  position: relative;
  z-index: 1;
  margin-top: 20px;
  color: var(--muted);
}

.panel-label,
.metric-label,
.demo-tag,
.footer-note {
  color: var(--accent);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 18px;
}

.metric-card,
.info-card,
.demo-card,
.deployment-card {
  padding: 24px;
}

.metric-card strong,
.board-row strong,
.demo-card h3,
.deployment-card h3,
.info-card h3 {
  display: block;
  margin-top: 14px;
  margin-bottom: 10px;
  font-size: 1.25rem;
}

.metric-card p,
.info-card p,
.board-row span,
.demo-card p,
.deployment-card p,
.site-footer p,
.hero-panel-copy p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.content-block {
  padding: 34px;
  margin-top: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(9, 14, 32, 0.9), rgba(6, 11, 24, 0.82));
  box-shadow: var(--shadow);
}

.section-heading {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.section-heading h2 {
  max-width: 12ch;
  font-size: clamp(2.1rem, 3vw, 3.7rem);
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.95fr);
  gap: 20px;
}

.stack {
  display: grid;
  gap: 18px;
}

.evidence-board {
  display: grid;
  gap: 1px;
  overflow: hidden;
  padding: 1px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
}

.board-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  background: rgba(7, 12, 26, 0.94);
}

.demo-band {
  background:
    radial-gradient(circle at 82% 18%, rgba(255, 139, 61, 0.08), transparent 25%),
    linear-gradient(180deg, rgba(9, 14, 32, 0.9), rgba(6, 11, 24, 0.82));
}

.demo-grid,
.deployment-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 26px 8px 0;
}

@keyframes drift {
  0%, 100% { transform: translateY(0) scaleY(1); }
  50% { transform: translateY(-8px) scaleY(1.03); }
}

@media (max-width: 1080px) {
  .hero,
  .split-layout,
  .metrics,
  .demo-grid,
  .deployment-grid {
    grid-template-columns: 1fr;
  }

  .section-heading h2,
  .hero h1 {
    max-width: none;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(calc(100% - 20px), var(--max-width));
    padding-top: 14px;
  }

  .site-header {
    flex-direction: column;
    align-items: stretch;
    border-radius: 28px;
  }

  .site-nav {
    justify-content: space-between;
  }

  .hero-copy,
  .hero-panel,
  .content-block,
  .metric-card,
  .info-card,
  .demo-card,
  .deployment-card {
    padding: 22px;
  }

  .site-footer {
    flex-direction: column;
    padding-left: 0;
    padding-right: 0;
  }
}