/* BidGauge Documentation — shared stylesheet */

:root {
  --bg: #f6f7f9;
  --bg-panel: #ffffff;
  --bg-inset: #eef0f4;
  --text: #1c2230;
  --text-dim: #5b6472;
  --text-faint: #88909a;
  --border: #dde1e7;
  --accent: #1d5fb4;
  --accent-dim: #e7eefb;
  --accent-2: #b3541e;
  --accent-2-dim: #fbeee3;
  --ok: #1a7f4e;
  --ok-dim: #e4f5ec;
  --warn: #a3390a;
  --warn-dim: #fcebe3;
  --risk: #a3151a;
  --risk-dim: #fbe6e6;
  --code-bg: #eef0f4;
  --shadow: 0 1px 2px rgba(20, 24, 33, 0.06), 0 1px 12px rgba(20, 24, 33, 0.04);
  --diagram-line: #7d8798;
  --diagram-fill-1: #dfeaf9;
  --diagram-fill-1-stroke: #1d5fb4;
  --diagram-fill-2: #fbeee3;
  --diagram-fill-2-stroke: #b3541e;
  --diagram-fill-3: #e4f5ec;
  --diagram-fill-3-stroke: #1a7f4e;
  --diagram-fill-4: #f1eefb;
  --diagram-fill-4-stroke: #6a3fb0;
  --diagram-text: #1c2230;
  font-synthesis: none;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171d;
    --bg-panel: #1b1f27;
    --bg-inset: #21262f;
    --text: #e6e9ef;
    --text-dim: #a3acba;
    --text-faint: #767f8d;
    --border: #2c323d;
    --accent: #6fa8ea;
    --accent-dim: #1b2c42;
    --accent-2: #e0985c;
    --accent-2-dim: #3a2a1c;
    --ok: #5fcf9a;
    --ok-dim: #163828;
    --warn: #e59261;
    --warn-dim: #3a2416;
    --risk: #ec7273;
    --risk-dim: #3a1a1a;
    --code-bg: #21262f;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 1px 16px rgba(0, 0, 0, 0.24);
    --diagram-line: #8f98a8;
    --diagram-fill-1: #1b2c42;
    --diagram-fill-1-stroke: #6fa8ea;
    --diagram-fill-2: #3a2a1c;
    --diagram-fill-2-stroke: #e0985c;
    --diagram-fill-3: #163828;
    --diagram-fill-3-stroke: #5fcf9a;
    --diagram-fill-4: #251c3a;
    --diagram-fill-4-stroke: #a986e0;
    --diagram-text: #e6e9ef;
  }
}

:root[data-theme="dark"] {
  --bg: #14171d;
  --bg-panel: #1b1f27;
  --bg-inset: #21262f;
  --text: #e6e9ef;
  --text-dim: #a3acba;
  --text-faint: #767f8d;
  --border: #2c323d;
  --accent: #6fa8ea;
  --accent-dim: #1b2c42;
  --accent-2: #e0985c;
  --accent-2-dim: #3a2a1c;
  --ok: #5fcf9a;
  --ok-dim: #163828;
  --warn: #e59261;
  --warn-dim: #3a2416;
  --risk: #ec7273;
  --risk-dim: #3a1a1a;
  --code-bg: #21262f;
  --diagram-line: #8f98a8;
  --diagram-fill-1: #1b2c42;
  --diagram-fill-1-stroke: #6fa8ea;
  --diagram-fill-2: #3a2a1c;
  --diagram-fill-2-stroke: #e0985c;
  --diagram-fill-3: #163828;
  --diagram-fill-3-stroke: #5fcf9a;
  --diagram-fill-4: #251c3a;
  --diagram-fill-4-stroke: #a986e0;
  --diagram-text: #e6e9ef;
}

:root[data-theme="light"] {
  --bg: #f6f7f9;
  --bg-panel: #ffffff;
  --bg-inset: #eef0f4;
  --text: #1c2230;
  --text-dim: #5b6472;
  --text-faint: #88909a;
  --border: #dde1e7;
  --accent: #1d5fb4;
  --accent-dim: #e7eefb;
  --accent-2: #b3541e;
  --accent-2-dim: #fbeee3;
  --ok: #1a7f4e;
  --ok-dim: #e4f5ec;
  --warn: #a3390a;
  --warn-dim: #fcebe3;
  --risk: #a3151a;
  --risk-dim: #fbe6e6;
  --code-bg: #eef0f4;
  --diagram-line: #7d8798;
  --diagram-fill-1: #dfeaf9;
  --diagram-fill-1-stroke: #1d5fb4;
  --diagram-fill-2: #fbeee3;
  --diagram-fill-2-stroke: #b3541e;
  --diagram-fill-3: #e4f5ec;
  --diagram-fill-3-stroke: #1a7f4e;
  --diagram-fill-4: #f1eefb;
  --diagram-fill-4-stroke: #6a3fb0;
  --diagram-text: #1c2230;
}

* { box-sizing: border-box; }

html { color-scheme: light dark; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  font-size: 16px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0.75rem 1.5rem;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.topbar .brand {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
}

.topbar .brand .mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 800;
}

.topbar .brand .sub {
  font-weight: 400;
  color: var(--text-faint);
  font-size: 0.85rem;
}

.topnav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem;
  overflow-x: auto;
}

.topnav a {
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.85rem;
  white-space: nowrap;
}

.topnav a:hover { background: var(--bg-inset); color: var(--text); }
.topnav a.active { background: var(--accent-dim); color: var(--accent); font-weight: 600; }

main {
  max-width: 980px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 5rem;
}

.page-header {
  margin-bottom: 2rem;
}

.eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  margin-bottom: 0.75rem;
}

.page-header h1 {
  margin: 0 0 0.5rem;
  font-size: 2rem;
  letter-spacing: -0.01em;
}

.page-header .dek {
  color: var(--text-dim);
  font-size: 1.05rem;
  max-width: 70ch;
}

h2 {
  font-size: 1.35rem;
  margin: 2.5rem 0 0.9rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border);
  letter-spacing: -0.005em;
}

section:first-of-type h2:first-child,
h2:first-child { border-top: none; padding-top: 0; }

h3 {
  font-size: 1.05rem;
  margin: 1.75rem 0 0.6rem;
}

p { color: var(--text); }
p.lede { color: var(--text-dim); }

a { color: var(--accent); }

ul, ol { padding-left: 1.3rem; }
li { margin: 0.3rem 0; }

.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow);
  margin: 1.25rem 0;
}

.diagram-wrap {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  margin: 1.25rem 0 0.5rem;
  box-shadow: var(--shadow);
  overflow-x: auto;
}

.diagram-wrap svg { display: block; margin: 0 auto; max-width: 100%; height: auto; }

.diagram-caption {
  color: var(--text-faint);
  font-size: 0.85rem;
  text-align: center;
  margin-top: 0.5rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 1.5rem;
  font-size: 0.92rem;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}

caption {
  caption-side: top;
  text-align: left;
  color: var(--text-faint);
  font-size: 0.82rem;
  margin-bottom: 0.4rem;
}

th, td {
  text-align: left;
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  background: var(--bg-inset);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-dim);
}

tr:last-child td { border-bottom: none; }

td code, p code, li code {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.08rem 0.35rem;
  font-size: 0.85em;
  font-family: "Cascadia Code", Consolas, "SFMono-Regular", Menlo, monospace;
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.55;
}

pre code {
  background: none;
  border: none;
  padding: 0;
  font-family: "Cascadia Code", Consolas, "SFMono-Regular", Menlo, monospace;
}

.badge {
  display: inline-block;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge.ok { background: var(--ok-dim); color: var(--ok); }
.badge.warn { background: var(--warn-dim); color: var(--warn); }
.badge.risk { background: var(--risk-dim); color: var(--risk); }
.badge.info { background: var(--accent-dim); color: var(--accent); }
.badge.neutral { background: var(--bg-inset); color: var(--text-dim); }

.check { color: var(--ok); font-weight: 700; }
.dash { color: var(--text-faint); }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin: 1.25rem 0;
}

.card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.1rem 1.25rem;
  box-shadow: var(--shadow);
}

.card h3 { margin-top: 0; font-size: 0.98rem; }
.card p { margin: 0.3rem 0 0; font-size: 0.88rem; color: var(--text-dim); }

.callout {
  border-left: 4px solid var(--accent);
  background: var(--accent-dim);
  border-radius: 0 10px 10px 0;
  padding: 0.9rem 1.1rem;
  margin: 1.25rem 0;
  font-size: 0.92rem;
}

.callout.risk { border-left-color: var(--risk); background: var(--risk-dim); }
.callout.warn { border-left-color: var(--warn); background: var(--warn-dim); }
.callout.ok { border-left-color: var(--ok); background: var(--ok-dim); }

.callout strong.tag {
  display: inline-block;
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  margin-bottom: 0.3rem;
}

.toc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.toc-card {
  display: block;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.1rem 1.25rem;
  text-decoration: none;
  color: var(--text);
  box-shadow: var(--shadow);
  transition: transform 0.08s ease, border-color 0.08s ease;
}

.toc-card:hover { border-color: var(--accent); transform: translateY(-1px); }

.toc-card .num {
  font-size: 0.75rem;
  color: var(--text-faint);
  font-weight: 700;
  letter-spacing: 0.05em;
}

.toc-card h3 { margin: 0.25rem 0 0.35rem; font-size: 1.05rem; color: var(--text); }
.toc-card p { margin: 0; font-size: 0.86rem; color: var(--text-dim); }

.stack-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0 2rem;
}

.stack-chip {
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.3rem 0.75rem;
  font-size: 0.82rem;
  color: var(--text-dim);
}

footer.page-footer {
  max-width: 980px;
  margin: 0 auto;
  padding: 1.5rem 1.5rem 3rem;
  color: var(--text-faint);
  font-size: 0.8rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.prev-next {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.prev-next a {
  text-decoration: none;
  color: var(--text-dim);
  font-size: 0.88rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem 0.9rem;
  max-width: 45%;
}

.prev-next a:hover { border-color: var(--accent); color: var(--accent); }
.prev-next .lbl { display: block; font-size: 0.72rem; color: var(--text-faint); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.15rem; }
.prev-next .next { text-align: right; margin-left: auto; }

.role-yes { color: var(--ok); font-weight: 700; }
.role-no { color: var(--text-faint); }

@media print {
  .topbar, .prev-next, footer.page-footer { display: none; }
  body { background: #fff; color: #000; }
  .panel, .diagram-wrap, table, .card, .toc-card { box-shadow: none; border-color: #ccc; }
}

@media (max-width: 640px) {
  .topbar { flex-wrap: wrap; }
  main { padding: 1.5rem 1rem 4rem; }
  .page-header h1 { font-size: 1.6rem; }
}