/* HAV design system — WCAG 2.2 AA tokens (light default) */
:root {
  --color-bg: #f7f9fc;
  --color-surface: #ffffff;
  --color-bg-muted: #eef2f7;
  --color-text: #1a1d21;
  --color-text-secondary: #444746;
  --color-text-muted: #5f6368;
  --color-border: #dadce0;
  --color-border-strong: #9aa0a6;
  --color-primary: #0b57d0;
  --color-primary-hover: #0842a0;
  --color-primary-subtle: #d3e3fd;
  --color-on-primary: #ffffff;
  --color-success: #137333;
  --color-success-subtle: #e6f4ea;
  --color-warning: #7d4e00;
  --color-warning-subtle: #fff8e1;
  --color-error: #b3261e;
  --color-error-subtle: #fce8e6;
  --color-focus-ring: #0b57d0;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --radius: 8px;
  --max-width: 1040px;
}

[data-theme="dark"] {
  --color-bg: #121316;
  --color-surface: #1e1f23;
  --color-bg-muted: #2d2e33;
  --color-text: #f1f3f4;
  --color-text-secondary: #c4c7c5;
  --color-text-muted: #9aa0a6;
  --color-border: #3c4043;
  --color-border-strong: #80868b;
  --color-primary: #aecbfa;
  --color-primary-hover: #8ab4f8;
  --color-primary-subtle: #394457;
  --color-on-primary: #041e49;
  --color-success: #6dd58c;
  --color-success-subtle: #1e3a29;
  --color-warning: #ffb955;
  --color-warning-subtle: #3e2e14;
  --color-error: #f2b8b5;
  --color-error-subtle: #3e1c1a;
  --color-focus-ring: #8ab4f8;
}

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-text);
  background: var(--color-bg);
}

a { color: var(--color-primary); }
a:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

.hav-page {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}

.hav-nav {
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.875rem;
}

.hav-nav a { margin-right: 1rem; }

h1 { font-size: 1.5rem; font-weight: 600; margin: 0 0 0.5rem; }
h2 { font-size: 1.125rem; font-weight: 600; margin: 1.5rem 0 0.75rem; }
h3 { font-size: 1rem; font-weight: 600; margin: 0 0 0.5rem; }

.lead { color: var(--color-text-secondary); margin: 0 0 1.25rem; }

.btn-row { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.25rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.375rem 0.875rem;
  font: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 6px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
}

.btn:hover { background: var(--color-bg-muted); }
.btn:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-on-primary);
}

.btn-primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); }

.btn-primary.is-active,
.btn-secondary.is-active {
  box-shadow: inset 0 0 0 2px var(--color-text);
}

.btn-secondary.is-active {
  background: var(--color-primary-subtle);
  border-color: var(--color-primary);
  color: var(--color-text);
}

.panel { display: none; }
.panel.is-visible { display: block; }

.callout {
  padding: 0.875rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-primary-subtle);
  margin-bottom: 1rem;
  font-size: 0.875rem;
}

.callout-warning {
  background: var(--color-warning-subtle);
  border-color: #feefc3;
  color: var(--color-warning);
}

[data-theme="dark"] .callout-warning { border-color: #5c4520; color: var(--color-warning); }

.card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  overflow: hidden;
}

.card-header {
  padding: 0.625rem 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-body { padding: 1rem; font-size: 0.875rem; color: var(--color-text-secondary); }

.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 0.75rem; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 0.75rem; }

.pill {
  display: inline-block;
  padding: 0.125rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-muted);
}

.pill-success { background: var(--color-success-subtle); color: var(--color-success); border-color: #ceead6; }
.pill-info { background: var(--color-primary-subtle); color: var(--color-primary); border-color: var(--color-primary-subtle); }
.pill-warning { background: var(--color-warning-subtle); color: var(--color-warning); border-color: #feefc3; }

.table-wrap { overflow-x: auto; margin: 1rem 0; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

th, td {
  padding: 0.625rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

th { font-weight: 600; background: var(--color-bg-muted); }
tr:last-child td { border-bottom: none; }
tr.striped:nth-child(even) td { background: var(--color-bg-muted); }
tr.highlight td { background: var(--color-success-subtle); }

.score-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 120px;
}

.score-bar-track {
  flex: 1;
  height: 6px;
  border-radius: 3px;
  background: var(--color-border);
  overflow: hidden;
}

.score-bar-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 3px;
}

.score-bar-fill.muted { background: var(--color-border-strong); opacity: 0.5; }

.bar-chart { margin: 1rem 0; }
.bar-chart-row {
  display: grid;
  grid-template-columns: 100px 1fr 2.5rem;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 0.5rem;
  font-size: 0.8125rem;
}

.bar-chart-bar {
  height: 20px;
  background: var(--color-primary);
  border-radius: 3px;
  min-width: 4px;
}

.muted { color: var(--color-text-muted); font-size: 0.8125rem; }

.phone-frame {
  width: 320px;
  max-width: 100%;
  border: 2px solid var(--color-border-strong);
  border-radius: 24px;
  overflow: hidden;
  background: var(--color-surface);
}

.phone-status {
  display: flex;
  justify-content: space-between;
  padding: 0.625rem 1rem 0.375rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-bottom: 1px solid var(--color-border);
}

.phone-title {
  padding: 0.5rem 1rem;
  font-weight: 600;
  border-bottom: 1px solid var(--color-border);
}

.phone-body { padding: 1rem; min-height: 420px; font-size: 0.875rem; }

.phone-tabs {
  display: flex;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-muted);
}

.phone-tab {
  flex: 1;
  text-align: center;
  padding: 0.5rem 0;
  font-size: 0.6875rem;
  color: var(--color-text-muted);
}

.phone-tab.active { color: var(--color-primary); font-weight: 600; }

.layout-split {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 1.5rem;
  align-items: start;
}

@media (max-width: 768px) {
  .layout-split { grid-template-columns: 1fr; }
}

.preview-frame {
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-surface);
}

.swatch {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.swatch-color {
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
}

.swatch-meta { padding: 0.5rem 0.625rem; font-size: 0.8125rem; }
.swatch-meta strong { display: block; }
.swatch-meta code { color: var(--color-text-muted); font-size: 0.75rem; }

pre.code-block {
  margin: 0;
  padding: 0.75rem;
  border-radius: var(--radius);
  background: var(--color-bg-muted);
  font-size: 0.75rem;
  line-height: 1.5;
  overflow-x: auto;
}

details summary {
  cursor: pointer;
  font-weight: 600;
  padding: 0.75rem 1rem;
  background: var(--color-bg-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

details[open] summary { border-radius: var(--radius) var(--radius) 0 0; }
details pre { border-top: none; border-radius: 0 0 var(--radius) var(--radius); border: 1px solid var(--color-border); }

.trust-banner {
  padding: 0.75rem;
  border-radius: var(--radius);
  background: var(--color-success-subtle);
  border: 1px solid #ceead6;
  margin-bottom: 0.75rem;
}

.doc-row {
  padding: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 0.5rem;
}

.chip-row { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0.75rem 0; }

.chip {
  padding: 0.375rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  font-size: 0.8125rem;
}

.sidebar-preview {
  width: 220px;
  border-right: 1px solid var(--color-border);
  background: var(--color-bg-muted);
  padding: 0.75rem 0;
  flex-shrink: 0;
}

.sidebar-item {
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  border-left: 3px solid transparent;
}

.sidebar-item.active {
  background: var(--color-primary-subtle);
  border-left-color: var(--color-primary);
  font-weight: 600;
  color: var(--color-text);
}

.desktop-layout { display: flex; min-height: 480px; }

.level-aaa { color: var(--color-success); font-weight: 600; }
.level-aa { color: var(--color-primary); font-weight: 600; }

/* Print — expand tabbed panels; hide interactive chrome */
@media print {
  body { background: #fff; }
  .btn-row { display: none !important; }
  .hav-nav a { color: var(--color-text); text-decoration: none; }
  .panel { display: block !important; }
  .panel[hidden] { display: block !important; }
  .panel + .panel { page-break-before: always; padding-top: 0.5rem; }
  .phone-frame { break-inside: avoid; }
  .card { break-inside: avoid; }
  .table-wrap { break-inside: avoid; }
  .print-section { page-break-before: always; }
  .print-section:first-child { page-break-before: auto; }
}