:root {
  --bg: #05070b;
  --bg-soft: #0d1117;
  --surface: rgba(11, 16, 25, 0.86);
  --surface-strong: rgba(16, 22, 34, 0.98);
  --surface-alt: rgba(14, 19, 29, 0.72);
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(28, 200, 227, 0.28);
  --text: #f4f7fb;
  --text-soft: rgba(244, 247, 251, 0.74);
  --text-dim: rgba(244, 247, 251, 0.46);
  --accent: #1cc8e3;
  --accent-strong: #6fe8f7;
  --accent-warm: #ffb84d;
  --accent-green: #7de2b6;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --container: min(1180px, calc(100vw - 40px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Space Grotesk', sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(28, 200, 227, 0.16), transparent 28%),
    radial-gradient(circle at 80% 10%, rgba(255, 184, 77, 0.1), transparent 24%),
    radial-gradient(circle at 50% 120%, rgba(125, 226, 182, 0.08), transparent 24%),
    linear-gradient(180deg, #04060a 0%, #06080d 38%, #05070b 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

body::before,
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -2;
}

body::before {
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at center, black 38%, transparent 88%);
}

body::after {
  background: linear-gradient(180deg, rgba(5, 7, 11, 0), rgba(5, 7, 11, 0.86));
  z-index: -1;
}

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

img {
  max-width: 100%;
}

button {
  font: inherit;
}

.site-shell {
  position: relative;
  padding-bottom: 72px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(5, 7, 11, 0.68);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.site-header__inner,
.section,
.footer__inner {
  width: var(--container);
  margin: 0 auto;
}

.site-header__inner {
  min-height: 78px;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand__mark {
  position: relative;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: inset 0 0 32px rgba(28, 200, 227, 0.16), 0 0 40px rgba(28, 200, 227, 0.12);
}

.brand__mark::before,
.brand__mark::after {
  content: '';
  position: absolute;
  inset: 8px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.brand__mark::after {
  inset: 13px;
  background: linear-gradient(135deg, var(--accent), rgba(255, 184, 77, 0.62));
  border: 0;
  box-shadow: 0 0 22px rgba(28, 200, 227, 0.42);
}

.brand__copy {
  display: grid;
  gap: 2px;
}

.brand__name {
  font-family: 'Sora', sans-serif;
  font-size: 0.94rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.brand__tag {
  font-size: 0.77rem;
  color: var(--text-dim);
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.site-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--text-soft);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  border: 1px solid transparent;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.08);
}

.nav-toggle {
  display: none;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 999px;
}

.button,
.ghost-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button {
  background: linear-gradient(135deg, var(--accent), #0f90b4);
  color: #021116;
  font-weight: 700;
  box-shadow: 0 16px 40px rgba(28, 200, 227, 0.24);
}

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

.ghost-button {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.1);
  color: var(--text);
}

.hero {
  width: var(--container);
  margin: 0 auto;
  padding: 88px 0 52px;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  gap: 30px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-soft);
  font-size: 0.85rem;
}

.eyebrow::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 18px rgba(28, 200, 227, 0.7);
}

.hero h1,
.page-hero h1 {
  font-family: 'Sora', sans-serif;
  font-size: clamp(3rem, 6vw, 5.5rem);
  line-height: 0.98;
  letter-spacing: -0.05em;
  margin: 18px 0 18px;
}

.hero p,
.page-hero p,
.section-copy {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text-soft);
  max-width: 64ch;
}

.hero__actions,
.hero__signals,
.cta-strip,
.pill-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero__actions {
  margin-top: 28px;
}

.hero__signals {
  margin-top: 22px;
}

.signal-pill,
.micro-pill {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-soft);
  font-size: 0.9rem;
}

.hero-visual,
.glass-panel,
.card,
.pricing-card,
.timeline-step,
.layer-card,
.surface-card,
.metric-card,
.cta-panel,
.stack-card,
.table-card {
  background: linear-gradient(180deg, rgba(15, 20, 31, 0.9), rgba(9, 13, 21, 0.96));
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}

.hero-visual {
  padding: 18px;
  position: relative;
  overflow: hidden;
}

.hero-visual::before {
  content: '';
  position: absolute;
  inset: -20% 20% auto;
  height: 180px;
  background: radial-gradient(circle, rgba(28, 200, 227, 0.18), transparent 68%);
}

.hero-preview {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 14px;
  min-height: 540px;
}

.preview-column,
.preview-stack {
  display: grid;
  gap: 14px;
}

.preview-card {
  border-radius: 22px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
}

.preview-card__label,
.section-label {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.73rem;
  color: var(--accent-strong);
}

.preview-card h3,
.card h3,
.surface-card h3,
.layer-card h3,
.stack-card h3,
.pricing-card h3,
.timeline-step h3 {
  margin: 10px 0 12px;
  font-size: 1.05rem;
}

.conversation-line,
.tool-line,
.code-line,
.graph-line,
.timeline-meta,
.layer-meta,
.metric-value,
.pricing-meta {
  font-family: 'IBM Plex Mono', monospace;
}

.conversation-line,
.tool-line,
.code-line,
.graph-line {
  color: var(--text-soft);
  font-size: 0.9rem;
  line-height: 1.6;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.conversation-line:last-child,
.tool-line:last-child,
.code-line:last-child,
.graph-line:last-child {
  border-bottom: 0;
}

.conversation-line span,
.tool-line span,
.code-line span,
.graph-line span {
  color: var(--accent-strong);
}

.preview-orbit {
  position: absolute;
  inset: auto -72px -84px auto;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 0 44px rgba(125, 226, 182, 0.08);
}

.preview-orbit::before,
.preview-orbit::after {
  content: '';
  position: absolute;
  inset: 22px;
  border: 1px solid rgba(28, 200, 227, 0.16);
  border-radius: 50%;
}

.preview-orbit::after {
  inset: 54px;
  border-color: rgba(255, 184, 77, 0.22);
}

.section {
  padding: 34px 0;
}

.section-heading {
  display: grid;
  gap: 12px;
  margin-bottom: 24px;
}

.section-heading h2 {
  font-family: 'Sora', sans-serif;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.05;
  margin: 0;
}

.section-grid,
.surface-grid,
.layer-grid,
.metric-grid,
.pricing-grid,
.matrix-grid,
.story-grid,
.architecture-grid,
.runtime-grid {
  display: grid;
  gap: 18px;
}

.section-grid,
.surface-grid,
.story-grid,
.metric-grid,
.runtime-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.layer-grid,
.matrix-grid,
.pricing-grid,
.architecture-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card,
.surface-card,
.layer-card,
.metric-card,
.pricing-card,
.stack-card,
.table-card {
  padding: 24px;
}

.card p,
.surface-card p,
.layer-card p,
.pricing-card p,
.stack-card p,
.table-card p,
.metric-card p,
.timeline-step p {
  color: var(--text-soft);
  line-height: 1.7;
}

.card ul,
.surface-card ul,
.layer-card ul,
.pricing-card ul,
.stack-card ul,
.table-card ul,
.timeline-step ul {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
  display: grid;
  gap: 10px;
}

.card li,
.surface-card li,
.layer-card li,
.pricing-card li,
.stack-card li,
.table-card li,
.timeline-step li {
  position: relative;
  padding-left: 18px;
  color: var(--text-soft);
}

.card li::before,
.surface-card li::before,
.layer-card li::before,
.pricing-card li::before,
.stack-card li::before,
.table-card li::before,
.timeline-step li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.8em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(28, 200, 227, 0.36);
}

.metric-card {
  min-height: 180px;
}

.metric-value {
  font-size: 2rem;
  color: var(--accent-strong);
  margin-top: 24px;
}

.layer-card {
  position: relative;
  overflow: hidden;
}

.layer-card::after {
  content: '';
  position: absolute;
  inset: auto -20px -50px auto;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(28, 200, 227, 0.18), transparent 68%);
}

.layer-meta,
.timeline-meta,
.pricing-meta {
  font-size: 0.86rem;
  color: var(--text-dim);
  letter-spacing: 0.03em;
}

.timeline {
  display: grid;
  gap: 14px;
}

.timeline-step {
  padding: 24px;
}

.timeline-step__top {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
}

.page-hero {
  width: var(--container);
  margin: 0 auto;
  padding: 74px 0 26px;
  display: grid;
  gap: 22px;
}

.page-hero__meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.page-hero__meta .micro-pill {
  border-radius: 18px;
  min-height: 84px;
  display: grid;
  align-content: start;
  gap: 6px;
}

.matrix-row {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr 1fr;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.matrix-row:last-child {
  border-bottom: 0;
}

.matrix-row strong {
  color: var(--accent-strong);
}

.cta-panel {
  width: var(--container);
  margin: 28px auto 0;
  padding: 28px;
  display: flex;
  justify-content: space-between;
  gap: 22px;
  align-items: center;
}

.cta-panel h2 {
  margin: 0 0 10px;
  font-family: 'Sora', sans-serif;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
}

.footer {
  padding-top: 32px;
}

.footer__inner {
  padding: 28px 0 44px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  color: var(--text-dim);
}

.footer__links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

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

@media (max-width: 1080px) {
  .hero,
  .section-grid,
  .surface-grid,
  .story-grid,
  .metric-grid,
  .runtime-grid,
  .layer-grid,
  .matrix-grid,
  .pricing-grid,
  .architecture-grid,
  .page-hero__meta,
  .hero-preview {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 54px;
  }

  .cta-panel {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 860px) {
  .site-header__inner {
    grid-template-columns: auto auto auto;
  }

  .site-nav {
    display: none;
    position: absolute;
    left: 20px;
    right: 20px;
    top: calc(100% + 12px);
    background: rgba(10, 14, 21, 0.98);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 14px;
    border-radius: 24px;
    justify-content: flex-start;
  }

  .site-nav.is-open {
    display: grid;
  }

  .site-nav a {
    width: 100%;
  }

  .nav-toggle {
    display: inline-flex;
  }
}

@media (max-width: 640px) {
  .site-header__inner,
  .section,
  .hero,
  .page-hero,
  .footer__inner,
  .cta-panel {
    width: min(100vw - 28px, 1180px);
  }

  .site-header__inner {
    min-height: 72px;
    grid-template-columns: 1fr auto;
  }

  .brand__tag,
  .nav-cta {
    display: none;
  }

  .hero h1,
  .page-hero h1 {
    font-size: clamp(2.5rem, 12vw, 4rem);
  }

  .preview-card,
  .card,
  .surface-card,
  .layer-card,
  .metric-card,
  .pricing-card,
  .stack-card,
  .table-card,
  .timeline-step,
  .cta-panel {
    padding: 20px;
    border-radius: 22px;
  }

  .matrix-row,
  .timeline-step__top {
    grid-template-columns: 1fr;
  }

  .hero-preview {
    min-height: auto;
  }
}