/* Garnet Guard site, from the brand thread's landing design (2026-10-10). Tokens follow docs/brand/colour/tokens.css. */
/* Self-hosted, OFL (licences in assets/fonts/). No third-party requests. */
@font-face { font-family: 'Inter'; font-style: normal; font-weight: 100 900; font-display: swap; src: url(fonts/inter-latin-opsz.woff2) format('woff2'); }
@font-face { font-family: 'JetBrains Mono'; font-style: normal; font-weight: 100 800; font-display: swap; src: url(fonts/jetbrains-mono-latin-wght.woff2) format('woff2'); }
/* Layout: paper page, one column of 1120px; the hero is a two-column grid where the right column is a field of
   seed outlines with one amber seed (the tell) under the real PR comment. Everything else is quiet rules and type. */
:root {
  --gg-garnet-900: #4A0C18; --gg-garnet-700: #8E1B2C; --gg-garnet-500: #B4263A; --gg-garnet-300: #D9586A; --gg-garnet-100: #F6DEE1;
  --gg-amber: #E0A100; --gg-ink: #1B1F24; --gg-slate: #5C636B; --gg-paper: #F7F3EE; --gg-white: #FFFFFF;

  --bg: #F7F3EE;            /* paper */
  --bg-2: #FFFDFA;          /* raised paper, for the card and the comment */
  --bg-3: #EFE9E1;          /* sunk paper, for the numbers strip and footer */
  --text: #1B1F24;          /* ink */
  --muted: #5C636B;         /* slate */
  --line: #DCD4C9;          /* hairline, paper darkened */
  --line-2: #C9BFB1;
  --accent: #8E1B2C;        /* garnet-700: buttons, the coloured word, links */
  --accent-hover: #B4263A;
  --accent-ink: #FFFFFF;    /* text on accent */
  --tint: #F6DEE1;          /* garnet-100 */
  --aril: #E0CBC3;          /* seed outlines on paper */
  --warn: #8A6100; --warn-bg: #FFF4D6; --warn-line: #E0A100;
  --pass: #2E7D4F;
  --term-bg: #1B1F24; --term-fg: #E6E1DA; --term-warn: #F0B429; --term-pass: #5DBB7A; --term-muted: #8A9099; --term-line: #2C3138;
  --gh-bg: #FFFFFF; --gh-line: #D0D7DE; --gh-head: #F6F8FA; --gh-text: #1F2328; --gh-muted: #59636E; --gh-link: #0969DA; --gh-warn: #9A6700; --gh-code: rgba(129,139,152,.12);
  --wm-ink: #1B1F24; --wm-garnet: #8E1B2C; --wm-seed: #4A0C18; --wm-body: #8E1B2C; --wm-window: #F7F3EE;

  --font-display: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-text: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', ui-monospace, Menlo, Consolas, monospace;
  --radius: 6px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171B; --bg-2: #1B1F24; --bg-3: #101316; --text: #ECE8E2; --muted: #A3AAB2; --line: #2C3138; --line-2: #3A4049;
    --accent: #D9586A; --accent-hover: #E98292; --accent-ink: #1B1F24; --tint: #2A1418; --aril: #3A2C30;
    --warn: #F0B429; --warn-bg: #2A2310; --warn-line: #E0A100; --pass: #5DBB7A;
    --term-bg: #0D0F12; --term-line: #22262C;
    --gh-bg: #0D1117; --gh-line: #3D444D; --gh-head: #151B23; --gh-text: #F0F6FC; --gh-muted: #9198A1; --gh-link: #4493F8; --gh-warn: #D29922; --gh-code: rgba(101,108,118,.2);
    --wm-ink: #F7F3EE; --wm-garnet: #D9586A; --wm-seed: #F7F3EE; --wm-body: #F7F3EE; --wm-window: #1B1F24;
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }
body { margin: 0; background: var(--bg); color: var(--text); font: 400 17px/1.6 var(--font-text); font-optical-sizing: auto; }
a { color: var(--accent); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--accent-hover); }
code, pre, kbd { font-family: var(--font-mono); }
code { font-size: .86em; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 3px; }
h1, h2, h3, h4 { font-family: var(--font-display); font-variation-settings: "opsz" 32; font-weight: 700; letter-spacing: -0.025em; line-height: 1.08; margin: 0 0 .5em; text-wrap: balance; }
h1 { font-size: clamp(2.4rem, 5.6vw, 4.1rem); letter-spacing: -0.035em; }
h2 { font-size: clamp(1.75rem, 3.6vw, 2.5rem); }
h3 { font-size: 1.2rem; letter-spacing: -0.015em; }
h4 { font-size: .95rem; letter-spacing: 0; }
p { margin: 0 0 1em; }
.wrap { max-width: 1120px; margin: 0 auto; padding-inline: 20px; }
@media (min-width: 720px) { .wrap { padding-inline: 32px; } }
.skip { position: absolute; left: -999px; top: 0; background: var(--bg-2); padding: 8px 12px; z-index: 20; }
.skip:focus { left: 8px; top: 8px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.eyebrow { font-size: .78rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); display: flex; align-items: center; gap: 10px; margin: 0 0 20px; }
.eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); flex: none; }
.lede { font-size: 1.2rem; line-height: 1.55; max-width: 34em; color: var(--text); }
.section-lede { font-size: 1.1rem; max-width: 38em; color: var(--muted); margin-bottom: 36px; }
.fine { font-size: .9rem; color: var(--muted); max-width: 60em; }
.center { text-align: center; margin-inline: auto; }
.sect { padding-block: 88px; }
.sect + .sect { border-top: 1px solid var(--line); }
@media (max-width: 720px) { .sect { padding-block: 60px; } }
.sub { margin-top: 56px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 20px; border-radius: var(--radius); font-weight: 600; font-size: 1rem; text-decoration: none; border: 1px solid transparent; transition: background .15s, color .15s, border-color .15s; }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: var(--accent-hover); color: var(--accent-ink); }
.btn-quiet { background: transparent; color: var(--text); border-color: var(--line-2); }
.btn-quiet:hover { border-color: var(--text); color: var(--text); }
.pill { display: inline-block; font: 600 .7rem/1 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; padding: 5px 8px; border-radius: 999px; border: 1px solid var(--line-2); color: var(--muted); vertical-align: middle; }
.pill-warn { color: var(--warn); border-color: var(--warn-line); background: var(--warn-bg); }
.pill-pass { color: var(--pass); border-color: var(--pass); }

/* Header */
.top { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.top-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px 24px; min-height: 68px; flex-wrap: wrap; padding-block: 10px; }
.brand { display: inline-flex; line-height: 0; color: inherit; }
.brand svg { height: 34px; width: auto; }
.top nav { display: flex; gap: 6px 22px; flex-wrap: wrap; font-size: .95rem; font-weight: 500; align-items: center; }
.top nav a { color: var(--text); text-decoration: none; padding: 6px 0; border-bottom: 2px solid transparent; }
.top nav a:hover { border-bottom-color: var(--accent); }
.top nav a.gh { padding: 8px 14px; border: 1px solid var(--line-2); border-radius: var(--radius); }
.top nav a.gh:hover { border-color: var(--text); }
.top nav .soon { font-size: .62rem; margin-left: 6px; }

/* Hero */
.hero { padding-block: 72px 80px; overflow: hidden; }
.hero-grid { display: grid; gap: 48px; align-items: center; }
@media (min-width: 960px) { .hero-grid { grid-template-columns: 1fr 1fr; gap: 48px; } .hero { padding-block: 96px 104px; } }
.hero-copy { min-width: 0; }
.hero-copy h1 em { font-style: normal; color: var(--accent); }
.tagline { font-family: var(--font-display); font-weight: 700; color: var(--accent); font-size: 1.05rem; letter-spacing: -0.01em; margin: 4px 0 28px; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 24px; }
.hero-figure { position: relative; margin: 0; min-width: 0; }
.arils { position: absolute; inset: -34% -24% -22% -8%; color: var(--aril); pointer-events: none; z-index: 0;
  -webkit-mask-image: radial-gradient(ellipse 64% 62% at 56% 46%, #000 42%, transparent 100%); mask-image: radial-gradient(ellipse 64% 62% at 56% 46%, #000 42%, transparent 100%); }
.arils svg { width: 100%; height: 100%; display: block; }
.arils .tell { transform-origin: center; transform-box: fill-box; animation: land .6s cubic-bezier(.2,.8,.2,1) .5s both; }
@keyframes land { from { opacity: 0; transform: scale(.4); } to { opacity: 1; transform: scale(1); } }
.gh-comment { position: relative; z-index: 1; background: var(--gh-bg); color: var(--gh-text); border: 1px solid var(--gh-line); border-radius: 8px; font: 14px/1.5 var(--font-text); box-shadow: 0 24px 48px -24px rgba(27,31,36,.35), 0 1px 0 rgba(27,31,36,.04); max-width: 560px; margin-inline: auto; }
.gh-head { display: flex; align-items: center; gap: 8px; background: var(--gh-head); border-bottom: 1px solid var(--gh-line); padding: 10px 14px; border-radius: 8px 8px 0 0; color: var(--gh-muted); }
.gh-avatar { width: 20px; height: 20px; border-radius: 50%; background: var(--gh-muted); opacity: .5; flex: none; }
.gh-head strong { color: var(--gh-text); }
.gh-bot { font-size: 11px; border: 1px solid var(--gh-line); border-radius: 999px; padding: 0 6px; }
.gh-body { padding: 14px 16px 10px; }
.gh-body p { margin: 0 0 10px; }
.gh-title { display: flex; align-items: center; gap: 6px; }
.gh-title svg { width: 16px; height: 16px; }
.gh-alert { border-left: 3px solid var(--gh-warn); padding: 2px 0 2px 14px; margin: 0 0 12px; }
.gh-alert-label { color: var(--gh-warn); font-weight: 600; display: flex; align-items: center; gap: 6px; }
.gh-alert ul { margin: 0; padding-left: 20px; }
.gh-alert li { margin-bottom: 6px; }
.gh-body code { background: var(--gh-code); padding: 1px 5px; border-radius: 4px; font-size: 12.5px; }
.gh-body a { color: var(--gh-link); text-decoration: none; }
.gh-foot { font-size: 12px; color: var(--gh-muted); margin: 0; }
.hero-figure figcaption { position: relative; z-index: 1; font-size: .85rem; color: var(--muted); margin: 14px auto 0; max-width: 560px; }

/* Numbers */
.numbers { background: var(--bg-3); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding-block: 40px; }
.stats { display: grid; gap: 28px 40px; margin: 0 0 20px; }
@media (min-width: 720px) { .stats { grid-template-columns: repeat(3, 1fr); } .stats > div + div { border-left: 1px solid var(--line-2); padding-left: 40px; } }
.stats dt { font-size: .82rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.stats dd { margin: 0; }
.big { display: block; font-family: var(--font-display); font-variation-settings: "opsz" 32; font-weight: 700; font-size: 2.6rem; letter-spacing: -0.03em; line-height: 1; font-variant-numeric: tabular-nums; }
.unit { display: block; color: var(--muted); font-size: .95rem; margin-top: 6px; }

/* Replays */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line-2); margin-bottom: 0; overflow-x: auto; }
.tabs button { appearance: none; background: none; border: 0; border-bottom: 2px solid transparent; margin-bottom: -1px; padding: 12px 14px; font: 500 .9rem/1 var(--font-mono); color: var(--muted); cursor: pointer; white-space: nowrap; }
.tabs button:hover { color: var(--text); }
.tabs button[aria-selected="true"] { color: var(--text); border-bottom-color: var(--accent); }
.panel { display: none; padding-top: 32px; }
.panel.is-active { display: block; }
.panel-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px 20px; margin-bottom: 12px; }
.panel-head h3 { margin: 0; font-size: 1.45rem; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.panel-head .meta { margin: 0; color: var(--muted); font-size: .9rem; }
.panel > p { max-width: 62em; }
.term { background: var(--term-bg); color: var(--term-fg); border-radius: 8px; padding: 0; margin: 20px 0; overflow: hidden; border: 1px solid var(--term-line); }
.term-bar { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-bottom: 1px solid var(--term-line); font: 500 .78rem/1 var(--font-mono); color: var(--term-muted); }
.term-bar .mark { width: 14px; height: 14px; }
.term pre { margin: 0; padding: 16px 18px; overflow-x: auto; font: 400 .84rem/1.6 var(--font-mono); color: var(--term-fg); }
.t-b { font-weight: 700; color: #FFFFFF; }
.t-warn { color: var(--term-warn); font-weight: 700; }
.t-pass { color: var(--term-pass); font-weight: 700; }
.t-mute { color: var(--term-muted); }
.limits { border-left: 3px solid var(--line-2); padding: 2px 0 2px 18px; max-width: 62em; }
.limits h4 { margin: 0 0 6px; color: var(--muted); font-weight: 600; }
.limits p { margin: 0; font-size: .95rem; }
.clean-list { columns: 2; gap: 32px; list-style: none; padding: 0; margin: 20px 0; font-size: .95rem; max-width: 46em; }
@media (min-width: 720px) { .clean-list { columns: 3; } }
.clean-list li { break-inside: avoid; padding: 6px 0; border-bottom: 1px solid var(--line); }

/* How it works */
.cards { display: grid; gap: 20px; margin: 0 0 48px; }
@media (min-width: 760px) { .cards { grid-template-columns: repeat(3, 1fr); } }
.card { background: var(--bg-2); border: 1px solid var(--line); border-radius: 10px; padding: 24px 24px 20px; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.card .fam { font: 700 1.6rem/1 var(--font-mono); color: var(--accent); letter-spacing: -0.02em; }
.card h3 { margin: 0; }
.card p { margin: 0; font-size: .97rem; color: var(--text); flex: 1; }
.rules { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.rules a { font: 500 .78rem/1 var(--font-mono); text-decoration: none; color: var(--accent); border: 1px solid var(--line-2); border-radius: 4px; padding: 5px 7px; }
.rules a:hover { border-color: var(--accent); }
.principles { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px 40px; max-width: 60em; }
@media (min-width: 760px) { .principles { grid-template-columns: 1fr 1fr; } }
.principles li { padding-left: 22px; position: relative; font-size: .97rem; }
.principles li::before { content: ""; position: absolute; left: 0; top: .55em; width: 10px; height: 10px; background: var(--accent); clip-path: polygon(50% 0, 100% 100%, 0 100%); }
.explain { display: grid; gap: 16px; margin: 0; }
@media (min-width: 760px) { .explain { grid-template-columns: 1fr 1fr; } }
.explain > div { background: var(--bg-2); border: 1px solid var(--line); border-radius: 10px; padding: 18px 20px; min-width: 0; }
.explain dt { font-family: var(--font-mono); font-weight: 700; font-size: .9rem; margin-bottom: 8px; }
.explain dd { margin: 0; font-size: .95rem; }
.explain em { font-style: normal; font-weight: 600; }

/* Try it (planned) */
.tryit .drop { display: grid; gap: 16px; margin: 28px 0 16px; }
@media (min-width: 760px) { .tryit .drop { grid-template-columns: 1fr auto 1fr; align-items: stretch; } }
.dropzone { border: 2px dashed var(--line-2); border-radius: 10px; padding: 28px 20px; text-align: center; background: var(--bg-2); min-width: 0; }
.dropzone .lab { font-size: .78rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.dropzone .name { font-family: var(--font-mono); font-size: .95rem; margin-bottom: 4px; }
.dropzone .hint { font-size: .85rem; color: var(--muted); margin: 0; }
.tryit .delta { display: grid; place-items: center; font-family: var(--font-display); font-size: 2rem; color: var(--accent); }
.tryit .run { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.tryit .run .btn[aria-disabled="true"] { opacity: .55; pointer-events: none; }
.tryit .fine { margin: 0; }
.tryit .sim { margin-top: 28px; }

/* Get started */
.steps { display: grid; gap: 24px; margin: 0 0 24px; }
@media (min-width: 960px) { .steps { grid-template-columns: 1.2fr 1fr 1fr; } }
.step { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.step h3 { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin: 0; font-size: 1.05rem; }
.step-n { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); font: 700 .85rem/1 var(--font-mono); flex: none; }
.code { background: var(--term-bg); color: var(--term-fg); border-radius: 8px; padding: 14px 16px; margin: 0; overflow-x: auto; font: 400 .84rem/1.6 var(--font-mono); border: 1px solid var(--term-line); }
.code .c { color: var(--term-muted); }
.step .fine { margin: 0; font-size: .88rem; }
.recording { position: relative; }
.recording .play { position: absolute; right: 12px; top: 10px; font: 600 .7rem/1 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--term-muted); border: 1px solid var(--term-line); border-radius: 999px; padding: 5px 8px; }

/* Open */
.open-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 18px 48px; max-width: 64em; }
@media (min-width: 760px) { .open-list { grid-template-columns: 1fr 1fr; } }
.open-list li { font-size: .97rem; padding-top: 14px; border-top: 1px solid var(--line); }
.open-list strong { display: block; margin-bottom: 2px; }

/* Footer */
.foot { background: var(--bg-3); border-top: 1px solid var(--line); padding-block: 48px 40px; }
.foot-inner { display: grid; gap: 28px 48px; }
@media (min-width: 760px) { .foot-inner { grid-template-columns: auto 1fr; align-items: start; } }
.foot .endorsed svg { height: 54px; width: auto; display: block; }
.foot .tagline { margin: 12px 0 0; font-size: .95rem; }
.foot-links { display: flex; flex-wrap: wrap; gap: 8px 24px; font-size: .95rem; align-self: center; }
.foot-links a { color: var(--text); text-decoration: none; }
.foot-links a:hover { color: var(--accent); text-decoration: underline; }
.credit { grid-column: 1 / -1; font-size: .85rem; color: var(--muted); margin: 8px 0 0; max-width: 70em; }

[hidden] { display: none !important; }

/* Without JavaScript every replay panel shows. */
.no-js .tabs { display: none; }
.no-js .panel { display: block; }
.explain > div { scroll-margin-top: 96px; }
.explain > div:target { box-shadow: 0 0 0 2px var(--warn-line); }

/* Rule and blog pages rendered by build.py */
.doc { padding-block: 48px 72px; }
.doc .wrap { max-width: 780px; }
.doc pre { background: var(--term-bg); color: var(--term-fg); border: 1px solid var(--term-line); border-radius: 8px; padding: 14px 16px; overflow-x: auto; font-size: .82rem; }
.doc table { border-collapse: collapse; width: 100%; font-size: .95rem; }
.doc th, .doc td { border: 1px solid var(--line); padding: 6px 10px; text-align: left; vertical-align: top; }
.crumbs { font-size: .9rem; color: var(--muted); }
.rule-meta { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 24px; }
.rule-meta span { font: 500 .78rem var(--font-mono); border: 1px solid var(--line); border-radius: 4px; padding: 2px 8px; color: var(--muted); }
.doc .meta { color: var(--muted); font-size: .9rem; }
.posts { list-style: none; padding: 0; margin: 0; display: grid; gap: 20px; }
.posts li { border-top: 1px solid var(--line); padding-top: 16px; color: var(--muted); }
.posts a { font-weight: 600; font-size: 1.1rem; }
.posts time { font: .82rem var(--font-mono); margin-left: 8px; }
.doc h2 { margin-top: 1.6em; }
.doc table + h2, .doc pre + h2 { margin-top: 1.4em; }