:root {
  color-scheme: light;
  --canvas: #fcfeff;
  --canvas-strong: #eaf3f7;
  --paper: rgba(255, 255, 255, 0.84);
  --paper-strong: #ffffff;
  --ink: #10283e;
  --muted: #55616b;
  --line: rgba(16, 40, 62, 0.12);
  --line-strong: rgba(16, 40, 62, 0.18);
  --primary: #10283e;
  --primary-deep: #081723;
  --secondary: #6f9fbe;
  --secondary-deep: #4c6f86;
  --tertiary: #7fc7d9;
  --success: #4e9a90;
  --error: #d52b1e;
  --shadow-soft: 0 22px 80px rgba(17, 28, 44, 0.12);
  --shadow-panel: 0 16px 50px rgba(13, 31, 49, 0.13);
  --radius-xl: 34px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 14px;
  --content-width: 1180px;
  --heading-font: "Manrope", "Inter", "Roboto", "Arial", sans-serif;
  --body-font: "Manrope", "Inter", "Roboto", "Arial", sans-serif;
  --mono-font: "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--body-font);
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(127, 199, 217, 0.22), transparent 28%),
    radial-gradient(circle at 85% 15%, rgba(111, 159, 190, 0.22), transparent 24%),
    linear-gradient(180deg, #ffffff 0%, #f7fafc 38%, #eef3f6 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(18, 36, 58, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 36, 58, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.36), transparent 72%);
  opacity: 0.5;
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

.page-shell {
  position: relative;
  overflow: clip;
}

.topbar-wrap {
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 18px 18px 0;
}

.topbar {
  width: min(var(--content-width), calc(100vw - 36px));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 18px;
  border: 1px solid rgba(255, 255, 255, 0.62);
  background: rgba(252, 254, 255, 0.82);
  backdrop-filter: blur(18px);
  border-radius: 999px;
  box-shadow: 0 14px 42px rgba(17, 28, 44, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  min-width: 0;
}

.brand-copy {
  min-width: 0;
  position: relative;
  padding-left: 18px;
}

.brand-copy::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--secondary), var(--tertiary));
}

.brand-title {
  display: block;
  font-size: 0.98rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-subtitle {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.84rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.site-nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
}

.site-nav-links a,
.footer-links a,
.legal-links a {
  color: var(--muted);
  text-decoration: none;
  transition: color 140ms ease;
}

.site-nav-links a:hover,
.footer-links a:hover,
.legal-links a:hover {
  color: var(--ink);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.58);
  color: var(--primary);
}

.button,
.button-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.96rem;
  font-weight: 700;
  text-decoration: none;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    background-color 160ms ease,
    border-color 160ms ease;
}

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

.button {
  color: #fffef9;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  box-shadow: 0 14px 34px rgba(16, 40, 62, 0.22);
}

.button-ghost {
  color: var(--primary);
  background: rgba(255, 255, 255, 0.38);
  border-color: var(--line-strong);
}

.button-ghost.dark {
  color: #fffef9;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.22);
}

.hero {
  width: min(var(--content-width), calc(100vw - 36px));
  margin: 24px auto 0;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
  gap: 30px;
  padding: 54px 0 22px;
}

.hero-copy,
.hero-visual,
.surface-card,
.capability-card,
.proof-card,
.architecture-card,
.security-card,
.cta-band {
  animation: rise-in 760ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.hero-copy {
  animation-delay: 60ms;
}

.hero-visual {
  animation-delay: 120ms;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(111, 159, 190, 0.24);
  background: rgba(255, 255, 255, 0.8);
  color: var(--secondary-deep);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.kicker::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--secondary), var(--tertiary));
  box-shadow: 0 0 0 5px rgba(111, 159, 190, 0.12);
}

.hero-title {
  margin: 24px 0 16px;
  max-width: 12ch;
  font-family: var(--heading-font);
  font-size: clamp(3.2rem, 8vw, 6.2rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
}

.hero-lead {
  max-width: 64ch;
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.hero-note {
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.95rem;
}

.host-ribbon {
  margin-top: 30px;
  display: grid;
  gap: 12px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.52);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}

.host-ribbon-title {
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
}

.host-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.host-card {
  padding: 16px;
  border-radius: var(--radius-md);
  background: rgba(247, 250, 252, 0.92);
  border: 1px solid rgba(16, 40, 62, 0.08);
}

.host-card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 0.9rem;
}

.host-card code {
  display: block;
  font-family: var(--mono-font);
  font-size: 0.85rem;
  line-height: 1.55;
  color: var(--primary);
  word-break: break-word;
}

.hero-visual {
  padding: 22px;
  border-radius: 38px;
  background:
    radial-gradient(circle at top left, rgba(127, 199, 217, 0.24), transparent 34%),
    radial-gradient(circle at 80% 12%, rgba(111, 159, 190, 0.28), transparent 28%),
    linear-gradient(180deg, var(--primary) 0%, var(--primary-deep) 100%);
  box-shadow: var(--shadow-soft);
  color: #f8f5ee;
}

.hero-visual-shell {
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 28px;
  background: rgba(11, 19, 32, 0.24);
}

.surface-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.surface-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.surface-pill::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--secondary), var(--tertiary));
}

.surface-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 1.1fr 0.9fr;
}

.surface-card {
  padding: 18px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.surface-card h3 {
  margin: 0;
  font-size: 1.05rem;
}

.surface-card p {
  margin: 10px 0 0;
  color: rgba(248, 245, 238, 0.72);
  line-height: 1.65;
}

.status-row {
  margin-top: 18px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.status-chip {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(248, 245, 238, 0.84);
  font-size: 0.84rem;
}

.surface-slab {
  margin-top: 14px;
  display: grid;
  gap: 12px;
}

.signal-card {
  padding: 16px;
  border-radius: 22px;
  background: rgba(248, 245, 238, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.signal-label {
  color: rgba(248, 245, 238, 0.68);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.signal-value {
  display: block;
  margin-top: 8px;
  font-family: var(--heading-font);
  font-size: 1.55rem;
  letter-spacing: -0.04em;
}

.section {
  width: min(var(--content-width), calc(100vw - 36px));
  margin: 0 auto;
  padding: 38px 0 0;
}

.section + .section {
  padding-top: 58px;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 26px;
}

.section-head h2 {
  margin: 0;
  max-width: 12ch;
  font-family: var(--heading-font);
  font-size: clamp(2.15rem, 4vw, 3.5rem);
  line-height: 0.98;
  letter-spacing: -0.05em;
}

.section-head p {
  max-width: 56ch;
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.capability-grid,
.proof-grid,
.security-grid {
  display: grid;
  gap: 18px;
}

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

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

.capability-card,
.proof-card,
.security-card,
.architecture-card,
.cta-band,
.legal-card {
  background: var(--paper);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-panel);
  backdrop-filter: blur(18px);
}

.capability-card,
.proof-card,
.security-card,
.architecture-card {
  padding: 22px;
}

.capability-eyebrow,
.proof-eyebrow,
.security-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.capability-eyebrow::before,
.proof-eyebrow::before,
.security-eyebrow::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--tertiary));
}

.capability-card h3,
.proof-card h3,
.security-card h3,
.architecture-card h3,
.legal-card h1,
.legal-card h2 {
  margin: 18px 0 10px;
  font-family: var(--heading-font);
  letter-spacing: -0.03em;
}

.capability-card p,
.proof-card p,
.security-card p,
.architecture-card p,
.legal-card p,
.legal-card li {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.capability-list,
.legal-list {
  margin: 16px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.capability-list li,
.legal-list li {
  margin: 10px 0 0;
}

.operating-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 22px;
}

.operating-intro {
  padding: 30px;
  border-radius: 30px;
  background:
    radial-gradient(circle at top left, rgba(127, 199, 217, 0.18), transparent 36%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.88) 0%, rgba(242, 247, 250, 0.88) 100%);
  border: 1px solid rgba(16, 40, 62, 0.08);
  box-shadow: var(--shadow-panel);
}

.operating-intro h3 {
  margin: 0 0 14px;
  font-family: var(--heading-font);
  font-size: 2rem;
  letter-spacing: -0.04em;
}

.operating-rail {
  display: grid;
  gap: 14px;
}

.rail-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  padding: 22px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(16, 40, 62, 0.08);
  box-shadow: var(--shadow-panel);
}

.rail-index {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-weight: 800;
}

.rail-step h3 {
  margin: 0 0 8px;
  font-size: 1.15rem;
}

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

.architecture-card code {
  display: inline-block;
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(16, 40, 62, 0.06);
  font-family: var(--mono-font);
  font-size: 0.88rem;
  color: var(--primary);
  word-break: break-all;
}

.cta-band {
  margin: 58px auto 0;
  padding: 30px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  background:
    radial-gradient(circle at top left, rgba(127, 199, 217, 0.18), transparent 34%),
    linear-gradient(135deg, rgba(16, 40, 62, 0.96) 0%, rgba(76, 111, 134, 0.94) 100%);
  color: #f9f6f0;
}

.cta-band h2 {
  margin: 0 0 10px;
  font-family: var(--heading-font);
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.04em;
}

.cta-band p {
  margin: 0;
  max-width: 58ch;
  color: rgba(249, 246, 240, 0.78);
  line-height: 1.75;
}

.cta-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-footer {
  width: min(var(--content-width), calc(100vw - 36px));
  margin: 34px auto 0;
  padding: 28px 0 50px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: var(--muted);
  border-top: 1px solid rgba(18, 36, 58, 0.1);
}

.footer-links,
.legal-links {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.legal-shell {
  width: min(900px, calc(100vw - 36px));
  margin: 36px auto 0;
  padding-bottom: 40px;
}

.legal-card {
  padding: 36px;
}

.legal-card h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 0.98;
}

.legal-card h2 {
  font-size: 1.45rem;
}

.legal-card section + section {
  margin-top: 28px;
}

.legal-meta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(18, 36, 58, 0.06);
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
}

.muted-link {
  color: var(--primary);
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(24px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1080px) {
  .hero,
  .operating-layout,
  .cta-band,
  .section-head {
    grid-template-columns: 1fr;
  }

  .capability-grid,
  .proof-grid,
  .security-grid,
  .architecture-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 780px) {
  .topbar {
    border-radius: 26px;
    align-items: start;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 18px;
    right: 18px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
    padding: 18px;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(16, 40, 62, 0.12);
    box-shadow: 0 20px 45px rgba(17, 28, 44, 0.12);
  }

  .site-nav[data-open="true"] {
    display: flex;
  }

  .site-nav-links,
  .nav-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .host-grid,
  .capability-grid,
  .proof-grid,
  .security-grid,
  .architecture-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    width: min(var(--content-width), calc(100vw - 28px));
    margin-top: 10px;
    padding-top: 30px;
  }

  .section,
  .site-footer,
  .legal-shell {
    width: min(var(--content-width), calc(100vw - 28px));
  }

  .topbar-wrap {
    padding-inline: 14px;
  }

  .hero-title,
  .section-head h2,
  .cta-band h2,
  .legal-card h1 {
    max-width: none;
  }

  .cta-actions {
    justify-content: flex-start;
  }

  .legal-card {
    padding: 28px 22px;
  }
}