:root {
  --bg: #0d1117;
  --panel: #161b22;
  --panel2: #1c2230;
  --ink: #e6edf3;
  --dim: #9aa7b4;
  --line: #2a3340;
  --accent: #5db0ff;
  --crit: #ff5c6c;
  --high: #ff9d4d;
  --med: #ffd24d;
  --ok: #3fb950;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
code, pre, .term { font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 960px; margin: 0 auto; padding: 0 20px; }

.hero {
  background: radial-gradient(1200px 500px at 50% -10%, #1b2740 0%, var(--bg) 70%);
  border-bottom: 1px solid var(--line);
  padding: 70px 0 60px;
  text-align: center;
}
.logo { font-size: 20px; letter-spacing: .5px; color: var(--dim); }
.hero h1 { font-size: 42px; margin: 18px 0 6px; line-height: 1.15; }
.tag { font-size: 19px; color: var(--dim); margin: 0 0 22px; }
.lede { max-width: 680px; margin: 0 auto 28px; color: #cbd5e1; }
.cta { display: flex; gap: 12px; justify-content: center; }
.btn {
  display: inline-block; padding: 10px 18px; border-radius: 8px;
  border: 1px solid var(--line); color: var(--ink); background: var(--panel);
}
.btn.primary { background: var(--accent); color: #04263f; border-color: var(--accent); font-weight: 600; }

section { padding: 46px 0; border-bottom: 1px solid var(--line); }
h2 { font-size: 27px; margin: 0 0 14px; }
h3 { font-size: 18px; margin: 0 0 8px; }

/* Stack full-width so the diagram is large and readable. */
.two { display: grid; grid-template-columns: 1fr; gap: 18px; margin-top: 20px; }
@media (max-width: 760px) { .hero h1 { font-size: 32px; } }

.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.panel-head { padding: 10px 14px; background: var(--panel2); border-bottom: 1px solid var(--line); font-size: 13px; color: var(--dim); }
.panel .mermaid { margin: 0 auto; padding: 24px; text-align: center; }
.panel .mermaid svg { max-width: 100%; height: auto; }

.term { padding: 16px; font-size: 12.5px; white-space: pre-wrap; line-height: 1.9; }
.term .line { display: block; }
.term .sub, .term .fix { display: block; color: var(--dim); padding-left: 18px; font-size: 12px; line-height: 1.5; }
.term .fix { color: #a6e0a6; }
.term .dim { color: var(--dim); }
.term .done { display: block; margin-top: 10px; color: var(--ok); }
.b { display: inline-block; padding: 0 7px; border-radius: 5px; font-weight: 700; color: #04121f; }
.b.crit { background: var(--crit); }
.b.high { background: var(--high); }
.b.med  { background: var(--med); }

pre.code {
  background: var(--panel); border: 1px solid var(--line); border-radius: 10px;
  padding: 14px 16px; overflow-x: auto; font-size: 13px; color: #dbe4ee;
}
:not(pre) > code { background: #22293400; color: #b9e08f; padding: 0 3px; }

.steps { list-style: none; counter-reset: s; padding: 0; }
.steps li { counter-increment: s; position: relative; padding: 0 0 8px 44px; margin-bottom: 18px; }
.steps li::before {
  content: counter(s); position: absolute; left: 0; top: 0;
  width: 30px; height: 30px; border-radius: 50%; background: var(--accent); color: #04263f;
  display: grid; place-items: center; font-weight: 700;
}

.shot { margin: 20px 0 0; }
.shot img {
  width: 100%; border: 1px solid var(--line); border-radius: 12px; background: var(--panel);
  min-height: 120px; display: block;
}
.shot figcaption { color: var(--dim); font-size: 13px; margin-top: 8px; text-align: center; }
.pending { color: var(--high); }

table.cmp { width: 100%; border-collapse: collapse; margin-top: 8px; font-size: 14px; }
.cmp th, .cmp td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.cmp thead th { color: var(--dim); font-weight: 600; }
.cmp tr.me { background: #12233a; }

.road, .attr { padding-left: 0; list-style: none; }
.road li, .attr li { padding: 6px 0; border-bottom: 1px dashed var(--line); }
.road .ok, .road .soon { display: inline-block; width: 66px; font-size: 11px; font-weight: 700; text-transform: uppercase; }
.road .ok { color: var(--ok); }
.road .soon { color: var(--med); }
.lic { color: var(--dim); font-size: 14px; }

/* Top nav (multi-page) */
.nav { border-bottom: 1px solid var(--line); background: var(--panel); position: sticky; top: 0; z-index: 10; }
.navwrap { display: flex; align-items: center; justify-content: space-between; height: 52px; }
.brand { font-weight: 700; color: var(--ink); }
.navlinks a { color: var(--dim); margin-left: 18px; font-size: 14px; }
.navlinks a.active, .navlinks a:hover { color: var(--accent); }
.subhero { border-bottom: 1px solid var(--line); padding: 40px 0 26px; background: radial-gradient(900px 300px at 30% -20%, #1b2740 0%, var(--bg) 70%); }
.subhero h1 { font-size: 34px; margin: 0 0 10px; }

.pill { display: inline-block; font-size: 11px; font-weight: 700; text-transform: uppercase; padding: 1px 7px; border-radius: 4px; vertical-align: middle; }
.pill.ok { background: #143d22; color: var(--ok); }
.pill.wip { background: #3d3413; color: var(--med); }
.pill.soon { background: #2a3340; color: var(--dim); }
.principles { padding-left: 20px; }
.principles li { margin: 8px 0; }
.note { color: var(--dim); font-size: 14px; }

footer { padding: 26px 0; color: var(--dim); font-size: 14px; text-align: center; }