:root {
  color-scheme: dark;
  --bg: #101113;
  --panel: #181a1d;
  --panel-strong: #202328;
  --ink: #f4f0e8;
  --muted: #bbb3a3;
  --quiet: #8c948f;
  --line: #343235;
  --amber: #d7b35f;
  --teal: #69c3b0;
  --oxide: #c4674f;
  --blue: #7fa7d9;
  --black: #050607;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 12% 20%, rgba(255, 255, 255, .16) 0 1px, transparent 1.6px),
    radial-gradient(circle at 74% 12%, rgba(215, 179, 95, .2) 0 1px, transparent 1.5px),
    radial-gradient(circle at 84% 68%, rgba(105, 195, 176, .18) 0 1px, transparent 1.5px),
    linear-gradient(135deg, #101113 0%, #15140f 45%, #111817 100%);
  background-size: 190px 170px, 280px 240px, 330px 310px, auto;
  color: var(--ink);
  letter-spacing: 0;
}

a {
  color: inherit;
}

.site-shell {
  display: grid;
  grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
  min-height: 100vh;
}

.rail {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: auto;
  padding: 22px 18px;
  background: rgba(16, 17, 19, .88);
  border-right: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
  padding-bottom: 18px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(215, 179, 95, .65);
  color: var(--amber);
  background: #17140e;
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 1rem;
}

.brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: .78rem;
}

nav {
  display: grid;
  gap: 4px;
}

.nav-item,
.nav-subitem {
  display: block;
  border-radius: 6px;
  color: var(--muted);
  line-height: 1.25;
  text-decoration: none;
}

.nav-item {
  padding: 8px 9px;
  font-size: .88rem;
}

.nav-subitem {
  padding: 6px 9px 6px 22px;
  color: var(--quiet);
  font-size: .8rem;
}

.nav-item:hover,
.nav-subitem:hover {
  background: rgba(215, 179, 95, .11);
  color: var(--ink);
}

main {
  width: min(1180px, 100%);
  padding: 34px clamp(18px, 4vw, 52px) 48px;
}

.masthead {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(310px, .9fr);
  gap: 28px;
  align-items: center;
  padding: 0 0 32px;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--teal);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  letter-spacing: 0;
}

h1 {
  max-width: 850px;
  margin: 0;
  font-size: clamp(2.15rem, 2.9rem, 3.2rem);
  line-height: 1.04;
}

.lede {
  max-width: 780px;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 1.06rem;
  line-height: 1.65;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(120px, 1fr));
  gap: 10px;
  margin-top: 22px;
}

.metrics span {
  min-height: 72px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(24, 26, 29, .72);
  color: var(--muted);
  font-size: .86rem;
}

.metrics strong {
  display: block;
  color: var(--amber);
  font-size: 1.55rem;
  line-height: 1.1;
}

.map-panel {
  margin: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(5, 6, 7, .42);
}

.map-panel img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px;
}

.map-panel figcaption {
  margin-top: 10px;
  color: var(--quiet);
  font-size: .82rem;
}

.roadmap {
  max-width: 880px;
  padding-top: 22px;
}

.roadmap h2 {
  margin: 42px 0 12px;
  padding-top: 8px;
  color: var(--ink);
  font-size: 1.55rem;
  line-height: 1.18;
}

.roadmap h3 {
  margin: 24px 0 8px;
  color: var(--teal);
  font-size: 1.06rem;
  line-height: 1.25;
}

.roadmap p {
  margin: 11px 0;
  color: var(--muted);
  line-height: 1.72;
}

.roadmap ul,
.roadmap ol {
  margin: 10px 0 18px;
  padding-left: 24px;
  color: var(--muted);
}

.roadmap li {
  margin: 7px 0;
  line-height: 1.6;
}

.roadmap li::marker {
  color: var(--amber);
}

.roadmap code {
  border: 1px solid rgba(215, 179, 95, .22);
  border-radius: 5px;
  padding: .08rem .32rem;
  background: rgba(215, 179, 95, .1);
  color: #f5d489;
  font-size: .92em;
}

pre {
  overflow-x: auto;
  margin: 15px 0 24px;
  padding: 14px 16px;
  border: 1px solid #2e3c3a;
  border-left: 3px solid var(--teal);
  border-radius: 8px;
  background: #090b0d;
}

pre code {
  border: 0;
  padding: 0;
  background: transparent;
  color: #dbe8e5;
  font-size: .9rem;
  line-height: 1.55;
}

footer {
  max-width: 880px;
  margin-top: 48px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--quiet);
  font-size: .84rem;
}

footer code {
  color: var(--amber);
}

@media (max-width: 900px) {
  .site-shell {
    display: block;
  }

  .rail {
    position: static;
    height: auto;
    max-height: none;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

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

  .masthead {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 560px) {
  main {
    padding: 24px 15px 36px;
  }

  .rail {
    padding: 16px 14px;
  }

  nav {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 2rem;
  }

  .metrics {
    grid-template-columns: 1fr;
  }
}