:root {
  --color-navy: #1f2e45;
  --color-navy-deep: #0f2547;
  --color-ink: #2a374b;
  --color-heading: #202e44;
  --color-civic: #5890d4;
  --color-civic-deep: #3375c6;
  --color-civic-soft: #75acde;
  --color-navy-tint: #e8eef6;
  --color-paper: #ffffff;
  --color-card: #f4f6f9;
  --color-muted: #5b6573;
  --color-line: #d2dfef;
  --color-mark: #cfe3f7;
  --font-display: "Arial Narrow", Impact, "Helvetica Neue", sans-serif;
  --font-sans: "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-ink);
  background: var(--color-paper);
  min-height: 100vh;
  line-height: 1.45;
  overflow-x: hidden;
}

button:not(:disabled),
[role="button"]:not(:disabled) {
  cursor: pointer;
}

.app-shell { min-height: 100vh; }

.banner {
  background: var(--color-navy);
  color: white;
  padding: calc(14px + env(safe-area-inset-top, 0px)) 24px 16px;
  border-bottom: 6px solid var(--color-civic);
}

.banner-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
}

.seal {
  width: 88px;
  height: 88px;
  object-fit: contain;
  flex-shrink: 0;
  background: white;
  border-radius: 50%;
  padding: 3px;
}

.banner-copy { min-width: 0; }

.banner .eyebrow {
  margin: 0;
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--color-civic-soft);
}

.banner h1 {
  font-family: var(--font-display);
  font-weight: 400;
  color: white;
  font-size: 34px;
  letter-spacing: -0.6px;
  text-transform: uppercase;
  margin: 2px 0 0;
  line-height: 1.05;
}

.banner .subtitle {
  color: white;
  font-size: 18px;
  margin: 4px 0 0;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  font-weight: 700;
}

.banner .context {
  color: rgb(255 255 255 / 0.72);
  font-size: 14px;
  margin: 4px 0 0;
}

.layout {
  max-width: 1100px;
  margin: 0 auto;
  padding: 22px 20px 64px;
}

.search-panel {
  background: white;
  border: 1px solid var(--color-line);
  border-left: 6px solid var(--color-navy);
  padding: 18px 18px 14px;
  margin-bottom: 18px;
}

.search-label {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 16px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--color-navy);
  margin-bottom: 8px;
}

.search-row {
  display: flex;
  gap: 8px;
}

.search-row input {
  flex: 1;
  font-family: inherit;
  font-size: 16px;
  padding: 12px 14px;
  border: 1px solid #c5cddb;
  border-radius: 0;
  outline: none;
  min-width: 0;
  min-height: 48px;
  background: white;
  color: var(--color-ink);
}

.search-row input:focus {
  border-color: var(--color-civic);
  box-shadow: 0 0 0 3px rgb(88 144 212 / 0.25);
}

.search-row button {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 1px;
  text-transform: uppercase;
  background: var(--color-civic);
  color: white;
  border: 0;
  padding: 12px 18px;
  min-width: 96px;
  min-height: 48px;
}

.search-row button:hover { background: var(--color-civic-deep); }

.hint {
  color: var(--color-muted);
  font-size: 15px;
  margin: 8px 0 0;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.chip,
.recent-chip {
  background: var(--color-navy-tint);
  color: var(--color-navy);
  border: 0;
  padding: 10px 12px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  min-height: 44px;
}

.chip:hover,
.recent-chip:hover { background: #d7e4f4; }

.install-wrap {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid #edf0f5;
}

.install-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.install-btn {
  background: var(--color-navy);
  color: white;
  border: 0;
  min-height: 44px;
  padding: 8px 14px;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
}

.install-btn:hover { background: var(--color-navy-deep); }

.install-note,
.install-status {
  font-size: 14px;
  color: var(--color-muted);
}

.install-pill {
  margin-top: 4px;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-navy);
}

.install-help {
  margin-top: 8px;
  background: var(--color-navy-tint);
  padding: 10px 14px;
  font-size: 15px;
  color: var(--color-navy);
}

.install-help ol {
  margin: 0;
  padding-left: 18px;
}

.grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 18px;
  align-items: start;
}

.nav-card,
.results-card {
  background: white;
  border: 1px solid var(--color-line);
}

.browse-fold { border: 0; }
.browse-fold > summary { list-style: none; }
.browse-fold > summary::-webkit-details-marker { display: none; }

.section-bar {
  font-family: var(--font-display);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.7px;
  background: var(--color-navy);
  color: white;
  padding: 10px 12px;
  font-size: 15px;
}

.browse-fold > summary.section-bar {
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.browse-fold > summary.section-bar::after {
  content: "Hide";
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: 0.4px;
  font-weight: 700;
  color: var(--color-civic-soft);
}

.browse-fold:not([open]) > summary.section-bar::after { content: "Show"; }

.nav-list { padding: 8px 0 12px; }
.nav-group { margin: 4px 0; }

.nav-group > summary {
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  color: var(--color-navy);
  padding: 12px;
  min-height: 44px;
  list-style: none;
}

.nav-group > summary::-webkit-details-marker { display: none; }
.nav-group > summary:hover { background: var(--color-navy-tint); }

.nav-group > button {
  display: block;
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-navy);
  padding: 12px;
  min-height: 44px;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.nav-group > button:hover { background: var(--color-navy-tint); }

.nav-items { display: none; padding: 0 0 6px; }
.nav-group.open .nav-items,
.nav-group[open] .nav-items { display: block; }

.nav-items button,
.nav-items a {
  display: flex;
  align-items: center;
  width: 100%;
  text-align: left;
  padding: 10px 12px 10px 22px;
  min-height: 44px;
  color: var(--color-muted);
  background: transparent;
  border: 0;
  font-size: 14px;
  font-family: inherit;
  text-decoration: none;
  overflow-wrap: anywhere;
  line-height: 1.25;
}

.nav-items button:hover,
.nav-items button.active,
.nav-items a:hover,
.nav-items a.active {
  background: #eef5fb;
  color: var(--color-navy);
}

.status {
  padding: 10px 14px;
  font-size: 15px;
  color: var(--color-muted);
  border-bottom: 1px solid #edf0f5;
}

.cards {
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.rule-card {
  background: var(--color-card);
  border-left: 6px solid var(--color-navy);
  padding: 14px 16px;
  overflow-wrap: anywhere;
  scroll-margin-top: 16px;
}

.cite {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  color: var(--color-navy);
}

.rule-card h2 {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--color-heading);
  margin: 3px 0 8px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: -0.3px;
}

.plain {
  background: #eef5fb;
  padding: 10px 12px;
  margin-bottom: 10px;
  font-size: 16px;
}

.plain .kicker {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--color-navy);
  margin-bottom: 4px;
}

.official-wrap { margin-top: 6px; }

.official-wrap summary {
  font-weight: 700;
  color: var(--color-navy);
  font-size: 15px;
  min-height: 44px;
  display: flex;
  align-items: center;
}

.official {
  margin-top: 8px;
  font-size: 15px;
  color: #2d3748;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

mark {
  background: var(--color-mark);
  color: inherit;
  padding: 0 1px;
}

.empty {
  padding: 28px 16px;
  text-align: center;
  color: var(--color-muted);
}

.note {
  background: var(--color-navy-tint);
  padding: 10px 12px;
  font-size: 14px;
  color: #2a3a58;
  margin-top: 16px;
}

.note a {
  color: var(--color-civic-deep);
  font-weight: 700;
}

footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px calc(28px + env(safe-area-inset-bottom, 0px));
  font-size: 14px;
  color: var(--color-muted);
}

footer p { margin: 0 0 6px; }
footer .credit { font-size: 13px; letter-spacing: 0.2px; }
footer a { color: var(--color-civic-deep); font-weight: 700; }

@media (min-width: 821px) {
  .browse-fold > summary.section-bar { pointer-events: none; }
  .browse-fold > summary.section-bar::after { display: none; }
}

@media (max-width: 820px) {
  .banner { padding: calc(12px + env(safe-area-inset-top, 0px)) 14px 12px; }
  .seal { width: 64px; height: 64px; }
  .banner h1 { font-size: 24px; }
  .banner .subtitle { font-size: 14px; }
  .layout { padding: 12px 12px 40px; }
  .search-panel {
    position: sticky;
    top: 0;
    z-index: 30;
    margin-bottom: 12px;
    padding: 12px;
    box-shadow: 0 6px 16px rgb(31 46 69 / 0.1);
  }
  .hint { display: none; }
  .chips {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 4px;
  }
  .chip { flex: 0 0 auto; white-space: nowrap; }
  .grid { grid-template-columns: 1fr; }
  .rule-card { padding: 12px; scroll-margin-top: 132px; }
  .rule-card h2 { font-size: 18px; }
  footer { padding: 0 12px calc(24px + env(safe-area-inset-bottom, 0px)); }
}