/* Transcribed from docs/frontend/design-language.md and clients/admin/src/app.css
   The single source for color, type, and shape. Where this disagrees with that
   document, that document is the authority. */
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --color-page: #faf9f7;
  --color-raised: #f2f0ec;
  --color-sunken: #edeae4;
  --color-border: #e4e1db;
  --color-border-control: #8f8779;
  --color-muted: #6e6862;
  --color-ink: #26231f;
  --color-accent: #2c4a6b;
  --color-oxide: #b4522e;
  --color-ok: #36684a;
  --color-warn: #836700;
  --color-danger: #a32f2f;
  --color-accent-tint: #e8eef5;
  --color-ok-tint: #e4f0e7;
  --color-warn-tint: #f6efd8;
  --color-danger-tint: #f8e7e5;
  --font-sans: 'IBM Plex Sans', ui-sans-serif, system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
  --text-eyebrow: 0.6875rem;
  --text-fine: 0.75rem;
  --text-cell: 0.8125rem;
  --text-body: 0.9375rem;
  --text-lead: 1.0625rem;
  --text-title: 1.3125rem;
  --text-display: 1.6875rem;
  --radius-chip: 2px;
  --radius-panel: 3px;
  --radius-overlay: 6px;
  --max: 1120px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --color-page: #1a1917;
    --color-raised: #232220;
    --color-sunken: #141311;
    --color-border: #35332f;
    --color-border-control: #706b61;
    --color-muted: #a19a92;
    --color-ink: #f2f0ec;
    --color-accent: #6fa0d0;
    --color-oxide: #e08055;
    --color-ok: #7fbf95;
    --color-warn: #d9b23a;
    --color-danger: #e8736f;
    --color-accent-tint: #1c2733;
    --color-ok-tint: #1b2620;
    --color-warn-tint: #282318;
    --color-danger-tint: #2b1e1d;
  }
}
:root[data-theme='dark'] {
  --color-page: #1a1917;
  --color-raised: #232220;
  --color-sunken: #141311;
  --color-border: #35332f;
  --color-border-control: #706b61;
  --color-muted: #a19a92;
  --color-ink: #f2f0ec;
  --color-accent: #6fa0d0;
  --color-oxide: #e08055;
  --color-ok: #7fbf95;
  --color-warn: #d9b23a;
  --color-danger: #e8736f;
  --color-accent-tint: #1c2733;
  --color-ok-tint: #1b2620;
  --color-warn-tint: #282318;
  --color-danger-tint: #2b1e1d;
}

* { box-sizing: border-box; }
html { color-scheme: light dark; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--color-page);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: var(--text-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--color-accent); text-decoration: underline; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; border-radius: var(--radius-chip); }

/* Layout */
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
@media (max-width: 700px) { .wrap { padding: 0 18px; } }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: var(--color-page);
  border-bottom: 1px solid var(--color-border);
}
.header-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; min-height: 54px;
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--color-ink); }
.brand-mark { color: var(--color-oxide); display: flex; }
.brand-word { font-weight: 600; font-size: 17px; letter-spacing: -0.02em; line-height: 1; }
.brand-word span { font-weight: 400; color: var(--color-muted); margin-left: 1px; }
.nav { display: flex; align-items: center; gap: 20px; font-size: var(--text-cell); }
.nav a { color: var(--color-muted); text-decoration: none; font-weight: 500; }
.nav a:hover { color: var(--color-ink); }
.nav .cta {
  color: var(--color-page); background: var(--color-accent);
  padding: 7px 12px; border-radius: var(--radius-panel);
  font-weight: 500; border: 1px solid transparent;
}
.nav .cta:hover { filter: brightness(1.06); color: var(--color-page); }
.theme-toggle {
  appearance: none; border: 1px solid var(--color-border-control);
  background: var(--color-raised); color: var(--color-muted);
  border-radius: var(--radius-panel); padding: 6px 9px;
  font-size: var(--text-fine); font-family: var(--font-mono);
  cursor: pointer; line-height: 1;
}
.theme-toggle:hover { color: var(--color-ink); border-color: var(--color-ink); }

/* Hero — intentionally left-aligned, asymmetric, not a centered pill stack */
.hero {
  padding: 42px 0 28px;
  display: grid;
  grid-template-columns: 1.18fr 0.82fr;
  gap: 28px;
  align-items: start;
}
@media (max-width: 860px) { .hero { grid-template-columns: 1fr; padding-top: 28px; } }
.eyebrow {
  font-family: var(--font-mono); font-size: var(--text-eyebrow);
  letter-spacing: 0.11em; text-transform: uppercase;
  color: var(--color-muted); font-weight: 500;
}
.hero h1 {
  margin: 8px 0 12px;
  font-size: clamp(1.75rem, 3.2vw, 2.35rem);
  line-height: 1.08; letter-spacing: -0.03em; font-weight: 600;
  text-wrap: balance;
}
.hero .lead {
  font-size: var(--text-lead); color: var(--color-muted);
  max-width: 58ch; margin: 0;
}
.hero-actions { display: flex; gap: 10px; margin-top: 22px; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--color-accent); color: #fff;
  text-decoration: none; font-weight: 500; font-size: var(--text-cell);
  padding: 9px 14px; border-radius: var(--radius-panel);
  border: 1px solid var(--color-accent);
}
.btn-primary:hover { filter: brightness(1.07); color: #fff; }
.btn-ghost {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--color-raised); color: var(--color-ink);
  text-decoration: none; font-size: var(--text-cell); font-weight: 500;
  padding: 9px 14px; border-radius: var(--radius-panel);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover { border-color: var(--color-border-control); }
.mono { font-family: var(--font-mono); }

/* Right panel — flush, hairline, no shadow */
.hero-panel {
  background: var(--color-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-panel);
  padding: 18px 18px 16px;
}
.hero-panel h2 {
  font-family: var(--font-mono); font-size: var(--text-eyebrow);
  letter-spacing: 0.11em; text-transform: uppercase;
  color: var(--color-muted); margin: 0 0 12px; font-weight: 500;
}
.kv { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; font-size: var(--text-cell); line-height: 1.45; }
.kv dt { font-family: var(--font-mono); color: var(--color-muted); font-size: var(--text-fine); }
.kv dd { margin: 0; font-weight: 500; }
.kv .sep { grid-column: 1 / -1; height: 1px; background: var(--color-border); margin: 8px 0; }
.status-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.02em;
  padding: 3px 7px; border-radius: var(--radius-chip);
  border: 1px solid var(--color-border); background: var(--color-page);
}
.chip i { width: 6px; height: 6px; border-radius: 999px; display: inline-block; }
.chip--ok i { background: var(--color-ok); }
.chip--warn i { background: var(--color-warn); }
.chip--accent i { background: var(--color-accent); }
.chip--muted i { background: var(--color-muted); }

/* Section scaffolding — rules, not gaps */
.rule { height: 1px; background: var(--color-border); border: 0; margin: 28px 0; }
.section { padding: 8px 0 6px; }
.section-head { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 18px; }
@media (max-width: 860px) { .section-head { grid-template-columns: 1fr; } }
.section-head h2 {
  margin: 0; font-size: var(--text-title); line-height: 1.2;
  letter-spacing: -0.02em; font-weight: 600;
}
.section-head p { margin: 0; color: var(--color-muted); font-size: var(--text-body); }
.prose { max-width: 68ch; }
.prose p { margin: 0 0 12px; }

/* Two-column facts */
.facts {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 14px 24px; margin-top: 6px;
}
@media (max-width: 700px) { .facts { grid-template-columns: 1fr; } }
.fact {
  border-top: 1px solid var(--color-border);
  padding-top: 12px;
}
.fact h3 { margin: 0 0 6px; font-size: var(--text-cell); font-weight: 600; }
.fact p { margin: 0; color: var(--color-muted); font-size: var(--text-cell); line-height: 1.5; }
.fact code {
  font-family: var(--font-mono); font-size: 12px;
  background: var(--color-sunken); border: 1px solid var(--color-border);
  padding: 1px 5px; border-radius: var(--radius-chip);
}

/* Trust buckets — a definition list, not a card grid */
.buckets {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 0; border: 1px solid var(--color-border);
  border-radius: var(--radius-panel); overflow: hidden;
  background: var(--color-raised);
}
@media (max-width: 700px) { .buckets { grid-template-columns: 1fr; } }
.bucket {
  padding: 16px 18px; border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.bucket:nth-child(2n) { border-right: 0; }
.bucket:nth-last-child(-n+2) { border-bottom: 0; }
@media (max-width: 700px) {
  .bucket { border-right: 0; }
  .bucket:nth-last-child(-n+2) { border-bottom: 1px solid var(--color-border); }
  .bucket:last-child { border-bottom: 0; }
}
.bucket h3 { margin: 0 0 4px; font-size: var(--text-cell); font-weight: 600; display: flex; align-items: center; gap: 8px; }
.bucket p { margin: 0; color: var(--color-muted); font-size: var(--text-cell); line-height: 1.5; }
.bucket .label {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 2px 6px; border-radius: var(--radius-chip); border: 1px solid var(--color-border);
  background: var(--color-page); color: var(--color-muted); font-weight: 500;
}

/* Timeline — a single vertical line, not bento boxes */
.timeline { position: relative; padding-left: 22px; margin-top: 8px; }
.timeline::before {
  content: ""; position: absolute; left: 5px; top: 6px; bottom: 8px;
  width: 1px; background: var(--color-border);
}
.phase { position: relative; padding: 14px 0 14px 14px; }
.phase::before {
  content: ""; position: absolute; left: -17px; top: 18px;
  width: 9px; height: 9px; border-radius: 999px;
  background: var(--color-page); border: 2px solid var(--color-accent);
}
.phase--now::before { background: var(--color-accent); }
.phase h3 { margin: 0 0 4px; font-size: var(--text-body); font-weight: 600; display: flex; align-items: center; gap: 10px; }
.phase h3 .tag {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.06em; text-transform: uppercase;
  border: 1px solid var(--color-border); border-radius: var(--radius-chip);
  padding: 2px 6px; color: var(--color-muted); font-weight: 500;
}
.phase h3 .tag--now { color: var(--color-accent); border-color: var(--color-accent); background: var(--color-accent-tint); }
.phase p { margin: 0; color: var(--color-muted); font-size: var(--text-cell); max-width: 68ch; }
.phase ul { margin: 8px 0 0 16px; color: var(--color-muted); font-size: var(--text-cell); line-height: 1.5; }
.phase ul li { margin: 2px 0; }

/* Callout — oxide only here, per the rule */
.callout {
  border: 1px solid var(--color-border);
  border-left: 2px solid var(--color-oxide);
  background: var(--color-raised);
  border-radius: var(--radius-panel);
  padding: 14px 16px;
  display: grid; grid-template-columns: 1fr auto; gap: 16px; align-items: center;
}
@media (max-width: 700px) { .callout { grid-template-columns: 1fr; } }
.callout p { margin: 0; font-size: var(--text-cell); color: var(--color-muted); }
.callout strong { color: var(--color-ink); }

/* Footer */
.site-footer {
  margin-top: 32px; border-top: 1px solid var(--color-border);
  padding: 18px 0 28px; color: var(--color-muted);
  font-size: var(--text-fine); font-family: var(--font-mono);
}
.footer-row { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.site-footer a { color: var(--color-muted); }
.site-footer a:hover { color: var(--color-ink); }

/* Utilities */
.sr-only { position: absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); border:0; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}