/* Self-hosted fonts (inlined here so stubs need no extra CSS request). */
@font-face{font-family:"Inter";font-style:normal;font-weight:400;font-display:swap;src:url("/assets/fonts/inter-latin-400-normal.woff2") format("woff2")}
@font-face{font-family:"Inter";font-style:normal;font-weight:500;font-display:swap;src:url("/assets/fonts/inter-latin-500-normal.woff2") format("woff2")}
@font-face{font-family:"Inter";font-style:normal;font-weight:600;font-display:swap;src:url("/assets/fonts/inter-latin-600-normal.woff2") format("woff2")}
@font-face{font-family:"Inter";font-style:normal;font-weight:700;font-display:swap;src:url("/assets/fonts/inter-latin-700-normal.woff2") format("woff2")}
@font-face{font-family:"Inter";font-style:normal;font-weight:800;font-display:swap;src:url("/assets/fonts/inter-latin-800-normal.woff2") format("woff2")}
@font-face{font-family:"JetBrains Mono";font-style:normal;font-weight:400;font-display:swap;src:url("/assets/fonts/jetbrains-mono-latin-400-normal.woff2") format("woff2")}
@font-face{font-family:"JetBrains Mono";font-style:normal;font-weight:500;font-display:swap;src:url("/assets/fonts/jetbrains-mono-latin-500-normal.woff2") format("woff2")}
@font-face{font-family:"JetBrains Mono";font-style:normal;font-weight:700;font-display:swap;src:url("/assets/fonts/jetbrains-mono-latin-700-normal.woff2") format("woff2")}
/* Shared styles for TermPuzzle resource/doc pages. Dark, matches the landing. */
:root {
  --bg: #060B16; --bg-raise: #0B1222; --panel: rgba(255,255,255,.03);
  --border: rgba(255,255,255,.08); --border-strong: rgba(255,255,255,.14);
  --text: #E8ECF4; --muted: #9AA5BA;
  --violet: #7C5CFC; --violet-soft: #A78BFA; --blue: #3B82F6; --sky: #38BDF8; --teal: #2DD4BF; --green: #34D399;
  --grad-brand: linear-gradient(100deg, var(--violet) 0%, var(--blue) 45%, var(--teal) 100%);
  --font-ui: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
  --radius: 14px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  font-family: var(--font-ui); background: var(--bg); color: var(--text); line-height: 1.7;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
::selection { background: rgba(124,92,252,.35); }
.container { max-width: 820px; margin: 0 auto; padding: 0 24px; }
.ambient { position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background: radial-gradient(620px 420px at 12% -4%, rgba(124,92,252,.14), transparent 65%),
              radial-gradient(640px 460px at 92% 6%, rgba(45,212,191,.08), transparent 65%); }

/* header */
header { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  background: rgba(6,11,22,.72); border-bottom: 1px solid var(--border); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.wordmark { font-size: 1.13rem; font-weight: 800; letter-spacing: -.02em; color: var(--text); }
.wordmark em { font-style: normal; background: var(--grad-brand); -webkit-background-clip: text; background-clip: text; color: transparent; }
.nav-right { display: flex; align-items: center; gap: 18px; }
.nav-right a.back { color: var(--muted); text-decoration: none; font-size: .92rem; font-weight: 500; transition: color .2s; }
.nav-right a.back:hover { color: var(--text); }
.btn { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: .88rem;
  padding: 8px 16px; border-radius: 10px; text-decoration: none; transition: all .2s; white-space: nowrap;
  background: var(--grad-brand); color: #fff; box-shadow: 0 4px 24px rgba(99,102,241,.35), inset 0 1px 0 rgba(255,255,255,.18); }
.btn:hover { filter: brightness(1.1); transform: translateY(-1px); }
a:focus-visible, summary:focus-visible { outline: 2px solid var(--sky); outline-offset: 3px; border-radius: 6px; }

/* doc hero + prose */
.doc { padding: 60px 0 40px; }
.doc .eyebrow { font-family: var(--font-mono); font-size: 12px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--muted); display: inline-flex; align-items: center; gap: 9px; margin-bottom: 14px; }
.doc .eyebrow::before { content: ""; width: 20px; height: 1px; background: var(--teal); }
.doc h1 { font-size: clamp(2rem, 5vw, 2.9rem); font-weight: 800; letter-spacing: -.03em; line-height: 1.05; text-wrap: balance; }
.doc .lede { color: var(--muted); font-size: 1.1rem; max-width: 60ch; margin-top: 16px; }
.doc-note { font-family: var(--font-mono); font-size: .75rem; color: var(--muted); margin-top: 20px;
  border: 1px dashed var(--border-strong); border-radius: 8px; padding: 9px 13px; display: inline-block; }

section.block { padding: 34px 0; border-top: 1px solid var(--border); }
section.block:first-of-type { border-top: none; }
h2 { font-size: 1.5rem; font-weight: 750; letter-spacing: -.01em; margin-bottom: 14px; }
h3 { font-size: 1.05rem; font-weight: 700; margin: 22px 0 8px; }
p { color: var(--muted); margin-bottom: 14px; }
p strong, li strong { color: var(--text); font-weight: 600; }
a { color: var(--sky); text-decoration: none; }
a:hover { text-decoration: underline; }
ul, ol { color: var(--muted); margin: 0 0 16px 0; padding-left: 0; list-style: none; }
li { position: relative; padding-left: 22px; margin-bottom: 10px; }
li::before { content: ""; position: absolute; left: 4px; top: 11px; width: 6px; height: 6px; border-radius: 50%; background: var(--teal); }
code { font-family: var(--font-mono); font-size: .85em; color: var(--violet-soft); background: rgba(124,92,252,.1);
  border: 1px solid var(--border); border-radius: 5px; padding: 1px 6px; }

/* index grid of doc links */
.dlist { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--border);
  border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; margin: 8px 0; }
.dlist a { display: flex; flex-direction: column; gap: 4px; padding: 18px 20px; background: var(--bg);
  text-decoration: none; transition: background .2s; }
.dlist a:hover { background: var(--bg-raise); }
.dlist b { color: var(--text); font-weight: 650; font-size: .98rem; }
.dlist span { color: var(--muted); font-size: .82rem; font-family: var(--font-mono); }
@media (max-width: 620px) { .dlist { grid-template-columns: 1fr; } }

/* stack / status chips */
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 4px 0 8px; }
.chips span { font-family: var(--font-mono); font-size: .76rem; color: var(--muted);
  border: 1px solid var(--border); border-radius: 999px; padding: 5px 12px; background: var(--panel); }

/* code block */
.codeblock { background: #0A1020; border: 1px solid var(--border-strong); border-radius: var(--radius);
  overflow: hidden; box-shadow: 0 18px 48px rgba(0,0,0,.45); margin: 8px 0 4px; }
.codeblock-bar { display: flex; align-items: center; gap: 6px; padding: 10px 16px; background: rgba(255,255,255,.03); border-bottom: 1px solid var(--border); }
.codeblock-bar i { width: 9px; height: 9px; border-radius: 50%; }
.codeblock-bar i:nth-child(1) { background: #FF5F57; } .codeblock-bar i:nth-child(2) { background: #FEBC2E; } .codeblock-bar i:nth-child(3) { background: #28C840; }
.codeblock-bar span { font-family: var(--font-mono); font-size: .72rem; color: var(--muted); margin-left: 8px; }
.codeblock pre { padding: 18px 20px; font-family: var(--font-mono); font-size: .82rem; line-height: 1.8; color: #C4CDE0; overflow-x: auto; }
.codeblock .k { color: var(--sky); } .codeblock .s { color: var(--green); } .codeblock .n { color: #FBBF24; } .codeblock .cm { color: #5B6780; }

/* roadmap columns */
.road { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 8px; }
.road .col { border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; background: var(--panel); }
.road .col h3 { margin: 0 0 12px; font-family: var(--font-mono); font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; }
.road .col.now h3 { color: var(--teal); } .road .col.next h3 { color: var(--sky); } .road .col.future h3 { color: var(--violet-soft); }
@media (max-width: 720px) { .road { grid-template-columns: 1fr; } }

/* changelog */
.release { border-top: 1px solid var(--border); padding: 26px 0; }
.release:first-child { border-top: none; }
.release .tag { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: .8rem;
  color: var(--teal); border: 1px solid rgba(45,212,191,.4); border-radius: 999px; padding: 3px 11px; }
.release h3 { margin: 12px 0 6px; font-size: 1.15rem; }
.release .sub { color: var(--muted); font-size: .95rem; margin-bottom: 12px; }

/* footer */
footer { border-top: 1px solid var(--border); padding: 40px 0; margin-top: 40px; }
.foot-bottom { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.foot-bottom p { color: var(--muted); font-size: .82rem; }
.foot-nav { display: flex; gap: 20px; flex-wrap: wrap; }
.foot-nav a { color: var(--muted); font-size: .82rem; text-decoration: none; transition: color .2s; }
.foot-nav a:hover { color: var(--text); }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; } }