:root {
  --navy: #071018;
  --navy-2: #0c1824;
  --panel: #101c2a;
  --line: #1e3144;
  --text: #e8eef4;
  --muted: #8aa0b5;
  --teal: #14b8a6;
  --teal-2: #5eead4;
  --ink: #f4f7fa;
  --warn: #fbbf24;
  --bad: #fb7185;
  --ok: #4ade80;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: "Avenir Next", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", ui-monospace, Menlo, monospace;
  --max: 1120px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--navy); color: var(--text); font-family: var(--sans); line-height: 1.55; }
a { color: var(--teal-2); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { max-width: 100%; }
code, pre { font-family: var(--mono); }
pre { background: #050b12; border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; overflow: auto; font-size: 13px; color: #d7e6f2; }
code { font-size: 0.92em; }
p code, li code { background: #132233; padding: 0.1em 0.35em; border-radius: 4px; }

.wrap { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(7,16,24,.92); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.nav { display: flex; align-items: center; justify-content: space-between; min-height: 64px; gap: 20px; }
.nav-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 700; letter-spacing: .02em; }
.brand:hover { text-decoration: none; }
.brand img { width: 28px; height: 28px; }
.nav-links { display: flex; gap: 22px; align-items: center; font-size: 14px; flex-wrap: wrap; }
.nav-links a { color: var(--muted); }
.nav-links a:hover, .nav-links a.active { color: var(--ink); text-decoration: none; }
.btn { display: inline-flex; align-items: center; justify-content: center; border-radius: 8px; padding: 9px 14px; font-weight: 600; font-size: 14px; border: 1px solid transparent; }
.btn:hover { text-decoration: none; }
.btn-primary,
.nav-links a.btn-primary,
.nav-links a.btn-primary:hover,
.nav-links a.btn-primary:active,
.nav-links a.btn-primary.active {
  background: var(--teal);
  color: #04201c;
}
.btn-ghost { border-color: var(--line); color: var(--ink); }
.hero { padding: 88px 0 56px; }
.kicker { color: var(--teal-2); font-size: 12px; letter-spacing: .16em; font-weight: 700; text-transform: uppercase; }
.hero h1 { font-family: var(--serif); font-size: clamp(36px, 6vw, 64px); line-height: 1.05; margin: 12px 0 18px; font-weight: 600; }
.lede { font-size: 19px; color: var(--muted); max-width: none; margin: 0 0 8px; }
.cta-row { display: flex; gap: 12px; margin-top: 28px; flex-wrap: wrap; }
.grid-3, .grid-2, .grid-4 { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); }
.section { padding: 56px 0; }
.section h2 { font-family: var(--serif); font-size: 32px; margin: 0 0 8px; }
.section .sub { color: var(--muted); margin: 0 0 28px; }
.stat { font-family: var(--serif); font-size: 40px; color: var(--teal-2); }
.muted { color: var(--muted); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.site-footer { border-top: 1px solid var(--line); padding: 36px 0 48px; color: var(--muted); font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 24px; }
.footer-grid h4 { color: var(--ink); margin: 0 0 10px; font-size: 13px; letter-spacing: .08em; text-transform: uppercase; }
.footer-grid a { display: block; color: var(--muted); margin: 6px 0; }
.diagram { background: #08131d; border: 1px solid var(--line); border-radius: 16px; padding: 16px; overflow: auto; }
.docs { display: grid; grid-template-columns: 240px 1fr; gap: 36px; padding: 32px 0 80px; }
.docs-nav { position: sticky; top: 84px; align-self: start; font-size: 14px; }
.docs-nav a { display: block; color: var(--muted); padding: 6px 0; }
.docs-nav a.active { color: var(--teal-2); }
.docs-nav .g { margin: 16px 0 6px; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: #6c8296; }
.prose h1 { font-family: var(--serif); font-size: 36px; margin: 0 0 10px; }
.prose h2 { font-family: var(--serif); font-size: 26px; margin: 36px 0 10px; }
.prose h3 { font-size: 18px; margin: 24px 0 8px; }
.prose p, .prose li { color: #c5d3df; }
.meta { color: var(--muted); font-size: 13px; }
.blog-list article { padding: 18px 0; border-bottom: 1px solid var(--line); }
.blog-list h2 { font-family: var(--serif); font-size: 24px; margin: 0 0 6px; }
.tag { display: inline-block; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--teal-2); border: 1px solid #164e48; padding: 2px 7px; border-radius: 999px; }
.hero-panel { margin-top: 40px; }
.nav-toggle {
  display: none;
  background: var(--panel);
  border: 1px solid var(--teal);
  color: var(--teal-2);
  border-radius: 8px;
  min-height: 40px;
  padding: 8px 14px;
  cursor: pointer;
  font-weight: 700;
  font-size: 14px;
}
.hero-visual { width: 100%; border-radius: 16px; display: block; margin-top: 36px; border: 1px solid var(--line); }
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.principle { border-top: 2px solid var(--teal); padding-top: 16px; }
.principle h3 { margin: 0 0 8px; font-family: var(--serif); }
.logo-row { display: flex; flex-wrap: wrap; gap: 10px; }
.logo-pill {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
}
.logo-pill:hover { border-color: var(--teal); text-decoration: none; color: var(--teal-2); }
.zero-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.figure { margin: 24px 0; }
.figure img { width: 100%; border-radius: 14px; border: 1px solid var(--line); display: block; }
.figure figcaption { color: var(--muted); font-size: 13px; margin-top: 8px; }
.steps { counter-reset: step; padding: 0; list-style: none; }
.steps li { position: relative; padding: 0 0 20px 48px; border-left: 1px solid var(--line); margin-left: 14px; }
.steps li:last-child { border-left-color: transparent; }
.steps li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: -14px;
  top: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #122233;
  border: 1px solid var(--teal);
  color: var(--teal-2);
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.banner {
  display: flex;
  gap: 20px;
  align-items: center;
  background: linear-gradient(120deg, #0d1b28, #102433);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
}
.banner img { width: 160px; border-radius: 10px; flex-shrink: 0; }
.quote { border-left: 3px solid var(--teal); padding: 4px 0 4px 16px; color: var(--muted); font-style: italic; }
.docs-toggle { display: none; }
@media (max-width: 900px) {
  .grid-3, .grid-4, .grid-2, .footer-grid, .docs, .principles, .zero-grid { grid-template-columns: 1fr; }
  .wrap { width: calc(100% - 28px); margin: 0 auto; }
  .nav {
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    min-height: 0;
    gap: 0;
    padding: 12px 0 8px;
  }
  .nav-top { width: 100%; }
  .nav-toggle { display: inline-flex; align-items: center; }
  .nav-links {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
    padding: 8px 0 4px;
  }
  .nav-links.is-collapsed { display: none; }
  .nav-links a {
    display: block;
    padding: 12px 0;
    border-top: 1px solid var(--line);
    text-align: left;
  }
  .nav-links a.btn-primary {
    margin: 12px 0 4px;
    text-align: center;
    width: 100%;
  }
  .docs { padding-top: 16px; }
  .docs-toggle {
    display: block;
    width: 100%;
    margin-bottom: 12px;
    background: var(--panel);
    color: var(--ink);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 10px 12px;
    text-align: left;
    font-weight: 600;
  }
  .docs-nav { display: none; position: static; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 12px 16px; margin-bottom: 20px; }
  .docs-nav.open { display: block; }
  .hero { padding: 28px 0 24px; }
  .hero h1 { font-size: clamp(28px, 8vw, 40px); }
  .lede { font-size: 16px; }
  .section { padding: 36px 0; }
  .section h2, .prose h1 { font-size: 28px; }
  .cta-row { flex-direction: column; align-items: stretch; }
  .cta-row .btn { width: 100%; }
  .banner { flex-direction: column; align-items: stretch; }
  .banner img { width: 100%; }
  .diagram { padding: 8px; }
  .diagram svg { min-width: 280px; }
  pre { font-size: 12px; padding: 12px; }
  table { display: block; overflow-x: auto; }
  .site-footer { padding: 28px 0 40px; }
}