:root {
  color-scheme: dark;
  --bg: #070a0f;
  --surface: rgba(18, 24, 32, 0.78);
  --surface-strong: rgba(25, 34, 44, 0.94);
  --line: rgba(242, 239, 231, 0.14);
  --line-strong: rgba(242, 239, 231, 0.26);
  --text: #f4f1e9;
  --muted: #aab2ba;
  --accent: #63c6ba;
  --warm: #d69a48;
  --blue: #75d6ff;
  --danger: #ff8a7a;
  --radius: 8px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(circle at 16% 12%, rgba(99, 198, 186, 0.2), transparent 26rem),
    radial-gradient(circle at 82% 18%, rgba(214, 154, 72, 0.16), transparent 28rem),
    linear-gradient(160deg, #070a0f 0%, #10181d 48%, #070a0f 100%);
  color: var(--text);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 76px 76px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.68), transparent 76%);
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.site-shell {
  min-height: 100vh;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem clamp(1rem, 4vw, 3rem);
  border-bottom: 1px solid var(--line);
  background: rgba(7, 10, 15, 0.78);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  min-height: 44px;
  text-decoration: none;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--warm));
  color: #071113;
  font-weight: 950;
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: 0.25rem;
}

.site-nav a,
.header-actions a,
.header-actions button,
.hero-actions a,
.hero-actions button,
.route-card a,
.copy-card button {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.055);
  color: var(--text);
  text-decoration: none;
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  padding: 0 0.75rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-nav a[aria-current="page"],
.site-nav a:hover,
.header-actions a:hover,
.header-actions button:hover,
.hero-actions a:hover,
.hero-actions button:hover,
.route-card a:hover,
.copy-card button:hover {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.1);
}

.header-actions {
  display: flex;
  gap: 0.5rem;
}

.header-actions a,
.header-actions button,
.hero-actions a,
.hero-actions button,
.route-card a,
.copy-card button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0 0.9rem;
  font-weight: 800;
}

.primary-action {
  background: linear-gradient(135deg, rgba(99, 198, 186, 0.2), rgba(214, 154, 72, 0.18)) !important;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(18rem, 0.75fr);
  gap: clamp(1rem, 4vw, 3rem);
  align-items: center;
  min-height: calc(100vh - 74px);
  padding: clamp(2.2rem, 6vw, 6rem) clamp(1rem, 5vw, 5rem);
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 14ch;
  margin-bottom: 1rem;
  font-size: clamp(3rem, 8vw, 7.8rem);
  line-height: 0.88;
  letter-spacing: 0;
}

.lede {
  max-width: 64ch;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.4rem;
}

.system-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background:
    linear-gradient(135deg, rgba(99, 198, 186, 0.12), transparent 40%),
    linear-gradient(315deg, rgba(214, 154, 72, 0.13), transparent 42%),
    var(--surface);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.34);
}

.system-card::before {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  content: "";
  background:
    radial-gradient(circle at 50% 45%, rgba(117, 214, 255, 0.24), transparent 18%),
    conic-gradient(from 110deg, rgba(99, 198, 186, 0.28), rgba(214, 154, 72, 0.18), rgba(117, 214, 255, 0.22), rgba(99, 198, 186, 0.28)),
    linear-gradient(135deg, #0d1518, #141c25);
  mask-image: radial-gradient(circle, #000 42%, transparent 70%);
}

.system-card-body {
  display: grid;
  gap: 0.9rem;
  padding: 1rem;
}

.status-list,
.capability-grid,
.roadmap-grid,
.route-grid,
.proof-grid {
  display: grid;
  gap: 0.85rem;
}

.status-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.status-list article,
.capability-card,
.roadmap-card,
.route-card,
.proof-card,
.copy-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.055);
  padding: 1rem;
}

.status-list span,
.capability-card span,
.roadmap-card span,
.proof-card span {
  display: block;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.status-list strong {
  display: block;
  margin-top: 0.25rem;
  font-size: 1.2rem;
}

.section {
  padding: clamp(2rem, 5vw, 5rem) clamp(1rem, 5vw, 5rem);
}

.section-heading {
  max-width: 56rem;
  margin-bottom: 1.5rem;
}

.section-heading h2 {
  margin-bottom: 0.7rem;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 0.96;
  letter-spacing: 0;
}

.section-heading p,
.capability-card p,
.roadmap-card p,
.route-card p,
.proof-card p,
.copy-card p {
  color: var(--muted);
  line-height: 1.55;
}

.capability-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.roadmap-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.route-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.route-card {
  display: grid;
  align-content: space-between;
  min-height: 14rem;
}

.route-card a {
  margin-top: 1rem;
}

.proof-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.copy-card {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
}

.page-status {
  min-height: 1.4rem;
  color: var(--accent);
  font-size: 0.9rem;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem clamp(1rem, 5vw, 5rem);
  border-top: 1px solid var(--line);
  color: var(--muted);
}

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

  .site-nav,
  .header-actions {
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 0.2rem;
  }

  .hero,
  .copy-card {
    grid-template-columns: 1fr;
  }

  .capability-grid,
  .roadmap-grid,
  .route-grid,
  .proof-grid,
  .status-list {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }
}