:root {
  color-scheme: dark;
  --bg: #050816;
  --bg-soft: #0a1020;
  --bg-deep: #0f1830;
  --panel: rgba(11, 16, 32, 0.88);
  --panel-strong: rgba(17, 25, 47, 0.96);
  --border: rgba(122, 162, 255, 0.18);
  --border-strong: rgba(122, 162, 255, 0.36);
  --text: #eef2ff;
  --muted: #a3afc9;
  --accent: #8cabff;
  --accent-strong: #c7d5ff;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top, rgba(140, 171, 255, 0.12), transparent 32rem),
    linear-gradient(180deg, var(--bg-soft) 0%, var(--bg) 100%);
}

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

code {
  font-family: "SFMono-Regular", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
}

.shell {
  width: min(100%, 80rem);
  margin: 0 auto;
  padding: max(1rem, env(safe-area-inset-top)) 1rem max(2rem, env(safe-area-inset-bottom));
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 100;
  padding: 0.8rem 1rem;
  border-radius: 0.9rem;
  background: var(--accent);
  color: #09101f;
  font-weight: 700;
}

.skip-link:focus {
  top: 1rem;
}

a:focus-visible {
  outline: 2px solid var(--accent-strong);
  outline-offset: 3px;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.35rem 0 0.85rem;
}

.status-banner {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0;
  padding: 0.45rem 0.7rem;
  border: 1px solid rgba(140, 171, 255, 0.24);
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(140, 171, 255, 0.12), rgba(140, 171, 255, 0.04)),
    rgba(255, 255, 255, 0.03);
}

.status-banner p {
  margin: 0;
  color: var(--muted);
  line-height: 1.2;
  font-size: 0.88rem;
  white-space: nowrap;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  min-height: 1.65rem;
  padding: 0.2rem 0.55rem;
  border: 1px solid rgba(199, 213, 255, 0.3);
  border-radius: 999px;
  background: rgba(11, 16, 32, 0.7);
  color: var(--accent-strong);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  white-space: nowrap;
}

.brand {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.site-nav a {
  padding: 0.55rem 0.85rem;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--muted);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  border-color: var(--border);
  color: var(--text);
  outline: none;
}

.hero {
  display: grid;
  gap: 1rem;
  align-items: stretch;
}

.router-hero {
  text-align: center;
  justify-items: center;
  gap: 0.45rem;
}

.hero,
.panel,
.project-card,
.system-card {
  border: 1px solid var(--border);
  border-radius: 1.4rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0)),
    var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.hero,
.panel {
  padding: 1.3rem;
}

.eyebrow,
.section-label,
.panel-label,
.project-kicker {
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero h1 {
  margin: 0.55rem 0 0;
  font-size: clamp(2.5rem, 8vw, 5rem);
  line-height: 0.98;
  max-width: 12.5ch;
}

.lede,
.section-copy,
.project-body p,
.system-card p,
.focus-list {
  color: var(--muted);
  line-height: 1.6;
}

.lede {
  margin-top: 1rem;
  max-width: 42rem;
  font-size: 1.06rem;
}

.router-hero h1 {
  max-width: 36rem;
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.4;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.hero-metrics {
  display: grid;
  gap: 0.8rem;
  margin-top: 1.3rem;
}

.metric {
  padding: 0.95rem 1rem;
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.03);
}

.metric strong {
  display: block;
  font-size: 0.98rem;
}

.metric span {
  display: block;
  margin-top: 0.35rem;
  color: var(--muted);
  line-height: 1.5;
  font-size: 0.95rem;
}

.primary-link,
.secondary-link,
.project-links a,
.system-card a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.9rem;
  padding: 0.8rem 1rem;
  border-radius: 0.95rem;
  border: 1px solid var(--border);
  transition: border-color 140ms ease, background 140ms ease, color 140ms ease, transform 140ms ease;
}

.primary-link {
  background: var(--accent);
  border-color: var(--accent);
  color: #09101f;
  font-weight: 700;
}

.secondary-link {
  background: rgba(255, 255, 255, 0.03);
}

.primary-link:hover,
.primary-link:focus-visible,
.secondary-link:hover,
.secondary-link:focus-visible,
.project-links a:hover,
.project-links a:focus-visible,
.system-card a:hover,
.system-card a:focus-visible {
  transform: translateY(-1px);
  border-color: var(--border-strong);
  outline: none;
}

main {
  display: grid;
  gap: 1rem;
  margin-top: 0.9rem;
}

.router-grid {
  display: grid;
  gap: 1rem;
}

.router-card {
  display: grid;
  gap: 0.45rem;
  padding: 1rem 1.25rem 3rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: 1.4rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0)),
    var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
  align-content: start;
}

.router-card:hover,
.router-card:focus-visible {
  transform: translateY(-1px);
  border-color: var(--border-strong);
  outline: none;
}

.router-kicker {
  margin: 0;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
}

.router-badge {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  display: inline-flex;
  padding: 0.28rem 0.48rem;
  border: 1px solid rgba(122, 162, 255, 0.2);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.03);
  font-family: "SFMono-Regular", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.76rem;
  line-height: 1;
}

.router-card h2 {
  margin: 0;
  padding-right: 4.8rem;
  font-size: clamp(1.5rem, 3.2vw, 1.95rem);
  font-weight: 600;
  line-height: 1.05;
}

.router-description {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
  font-size: 0.95rem;
}

.router-hover {
  position: absolute;
  left: 1.25rem;
  right: 1.25rem;
  bottom: 1rem;
  color: rgba(199, 213, 255, 0.72);
  font-size: 0.82rem;
  font-family: "SFMono-Regular", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-style: italic;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 150ms ease, transform 150ms ease;
  pointer-events: none;
}

.router-card:hover .router-hover,
.router-card:focus-visible .router-hover {
  opacity: 1;
  transform: translateY(0);
}

.hero-panel {
  border: 1px solid var(--border);
  border-radius: 1.2rem;
  padding: 1.1rem;
  background:
    linear-gradient(180deg, rgba(140, 171, 255, 0.1), rgba(140, 171, 255, 0.03)),
    rgba(255, 255, 255, 0.03);
}

.section-head h2 {
  margin: 0.4rem 0 0;
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  line-height: 1.1;
}

.focus-list {
  margin: 0.9rem 0 0;
  padding-left: 1.1rem;
}

.focus-list li + li {
  margin-top: 0.55rem;
}

.route-panel {
  margin-top: 1.15rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.route-label {
  margin: 0;
  color: var(--accent-strong);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.route-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 0.8rem;
}

.route-list a {
  padding: 0.65rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.projects-grid,
.systems-grid,
.about-points,
.overview-points {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

.project-card,
.system-card {
  padding: 1.1rem;
}

.project-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.project-body {
  display: grid;
  gap: 0.8rem;
}

.project-card h3,
.system-card h3 {
  margin: 0.35rem 0 0;
  font-size: 1.3rem;
  line-height: 1.15;
}

.project-body p,
.system-card p {
  margin: 0;
}

.project-summary {
  color: var(--text);
  font-size: 1.02rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.tag-list li,
.overview-points span,
.about-points span {
  padding: 0.45rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.9rem;
}

.route-hint {
  color: var(--muted);
  font-size: 0.92rem;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.9rem;
  color: var(--accent-strong);
  font-size: 0.95rem;
  font-weight: 600;
}

.zone-header {
  display: grid;
  gap: 0.75rem;
}

.zone-header h1 {
  margin: 0;
  font-size: clamp(2rem, 6vw, 3.25rem);
  line-height: 1;
}

.zone-subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.55;
}

.stub-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

.stub-card {
  border: 1px solid var(--border);
  border-radius: 1.2rem;
  background: rgba(255, 255, 255, 0.03);
  padding: 1.1rem;
}

.stub-card h2 {
  margin: 0;
  font-size: 1.35rem;
  line-height: 1.15;
}

.stub-card p {
  margin: 0.75rem 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1rem;
}

.project-links a,
.system-card a {
  background: rgba(255, 255, 255, 0.03);
}

.section-copy {
  margin: 1rem 0 0;
  max-width: 44rem;
}

.about-layout {
  display: grid;
  gap: 1rem;
}

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

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

.footer-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-bar span {
  color: var(--muted);
}

.footer-bar span + span::before {
  content: "/";
  margin-right: 0.75rem;
  color: rgba(163, 175, 201, 0.5);
}

@media (min-width: 48rem) {
  .shell {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }

  .hero {
    grid-template-columns: minmax(0, 1.6fr) minmax(18rem, 0.9fr);
    padding: 1.7rem;
  }

  .router-hero {
    grid-template-columns: 1fr;
    padding: 1.35rem 1.8rem;
  }

  .panel {
    padding: 1.6rem;
  }

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

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

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

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

  .project-card-wide {
    grid-column: span 2;
  }

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

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

@media (max-width: 39.99rem) {
  .site-header {
    flex-direction: column;
    align-items: stretch;
  }

  .status-banner {
    flex-wrap: wrap;
    align-items: center;
  }

  .site-nav {
    width: 100%;
  }

  .site-nav a {
    flex: 1 1 auto;
    text-align: center;
  }

  .about-points,
  .overview-points {
    grid-template-columns: 1fr;
  }

  .status-banner p {
    white-space: normal;
  }

  .router-badge {
    position: static;
    justify-self: start;
  }

  .router-card h2 {
    padding-right: 0;
  }

  .router-card {
    padding: 1rem 1rem 3rem 1rem;
  }

  .router-hover {
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
  }
}

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

  .primary-link,
  .secondary-link,
  .project-links a,
  .system-card a {
    transition: none;
  }
}