/* StateRoadRules: one stylesheet, no web fonts, light + dark. */

:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #17202b;
  --muted: #5b6675;
  --line: #dde2e8;
  --brand: #0f2742;
  --brand-2: #1c4370;
  --accent: #ffc83d;
  --link: #1557b0;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 4px 16px rgba(16, 24, 40, .06);

  /* category colors: c1 = strictest/highest ... c5 = none */
  --c1: #c2410c; --c1-soft: #ffedd5; --c1-ink: #7c2d12;
  --c2: #d97706; --c2-soft: #fef3c7; --c2-ink: #78350f;
  --c3: #0d9488; --c3-soft: #ccfbf1; --c3-ink: #134e4a;
  --c4: #2563eb; --c4-soft: #dbeafe; --c4-ink: #1e3a8a;
  --c5: #8a94a3; --c5-soft: #eceff3; --c5-ink: #334155;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1520;
    --surface: #152131;
    --text: #e6ebf2;
    --muted: #9aa8b9;
    --line: #26364a;
    --brand: #0a1a2d;
    --brand-2: #16314f;
    --link: #7fb2ff;
    --shadow: none;
    --c1-soft: #431d0b; --c1-ink: #fed7aa;
    --c2-soft: #3d2a06; --c2-ink: #fde68a;
    --c3-soft: #0b3532; --c3-ink: #99f6e4;
    --c4-soft: #172a52; --c4-ink: #bfdbfe;
    --c5: #5d6878; --c5-soft: #222f40; --c5-ink: #cbd5e1;
    color-scheme: dark;
  }
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

a { color: var(--link); text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
img, svg { max-width: 100%; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -.01em; }
h1 { font-size: clamp(1.9rem, 4.5vw, 2.7rem); margin: .2em 0 .4em; }
h2 { font-size: clamp(1.3rem, 2.8vw, 1.6rem); margin: 1.8em 0 .6em; }
p { margin: 0 0 1em; }
table { border-collapse: collapse; width: 100%; }

.wrap { width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 16px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: #000; padding: 8px 12px; z-index: 10; }
.skip:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

/* Header */
.site-header { background: var(--brand); color: #fff; position: sticky; top: 0; z-index: 5; }
.header-row { display: flex; align-items: center; gap: 16px; min-height: 60px; }
.logo { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; font-size: 1.15rem; font-weight: 600; }
.logo b, .footer-logo b { color: var(--accent); }
.site-nav { margin-left: auto; display: flex; gap: 4px; }
.site-nav a { color: #dbe6f3; text-decoration: none; padding: 8px 12px; border-radius: 8px; font-size: .95rem; }
.site-nav a:hover, .site-nav a[aria-current] { background: var(--brand-2); color: #fff; }
.menu-toggle { display: none; margin-left: auto; background: none; border: 0; color: #fff; padding: 8px; cursor: pointer; }
.site-nav { align-items: center; }
.nav-group { position: relative; }
.nav-group summary { list-style: none; cursor: pointer; color: #dbe6f3; padding: 8px 12px; border-radius: 8px; font-size: .95rem; }
.nav-group summary::-webkit-details-marker { display: none; }
.nav-group summary::after { content: " ▾"; font-size: .75em; opacity: .7; }
.nav-group summary:hover, .nav-group summary.is-active, .nav-group[open] summary { background: var(--brand-2); color: #fff; }
.nav-menu { position: absolute; top: calc(100% + 6px); left: 0; min-width: 260px; background: var(--brand); border: 1px solid var(--brand-2); border-radius: 10px; padding: 6px; box-shadow: 0 10px 30px rgba(0, 0, 0, .3); display: flex; flex-direction: column; }
.nav-menu a { white-space: nowrap; }

@media (max-width: 860px) {
  .menu-toggle { display: block; }
  .site-nav { display: none; position: absolute; left: 0; right: 0; top: 60px; flex-direction: column; background: var(--brand); padding: 8px 16px 16px; box-shadow: 0 8px 20px rgba(0, 0, 0, .25); }
  .site-nav.is-open { display: flex; }
  .site-nav a, .nav-group summary { padding: 12px; font-size: 1rem; }
  .site-nav { align-items: stretch; max-height: calc(100vh - 60px); overflow-y: auto; }
  .nav-menu { position: static; box-shadow: none; border: 0; padding: 0 0 0 12px; min-width: 0; }
  .nav-menu a { white-space: normal; }
}

/* Breadcrumbs */
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 4px; padding: 0; margin: 14px auto 0; font-size: .88rem; color: var(--muted); }
.crumbs li + li::before { content: "›"; margin-right: 4px; }
.crumbs a { color: var(--muted); }

/* Buttons and forms */
.btn {
  display: inline-block; border: 0; border-radius: 10px; padding: 11px 18px; cursor: pointer;
  background: var(--brand-2); color: #fff; font: inherit; font-weight: 600; text-decoration: none;
}
.btn:hover { filter: brightness(1.12); }
.btn-accent { background: var(--accent); color: #1b1b1b; }
.btn-big { padding: 14px 26px; font-size: 1.05rem; }

select, input {
  font: inherit; color: var(--text); background: var(--surface);
  border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; width: 100%; min-height: 46px;
}
label { display: block; font-weight: 600; font-size: .92rem; margin-bottom: 6px; }
label small { font-weight: 400; color: var(--muted); }

/* Hero */
.hero { background: linear-gradient(160deg, var(--brand) 0%, var(--brand-2) 100%); color: #fff; padding: 44px 0 52px; }
.hero h1 { max-width: 16em; }
.hero .lead { color: #d3dfec; max-width: 36em; }
.hero-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 32px; align-items: center; }
.hero .state-picker label { color: #fff; }
.hero-card { background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .15); border-radius: var(--radius); padding: 24px; }
.hero-card-title { font-size: 1.25rem; font-weight: 700; margin-bottom: .3em; }
.eyebrow { text-transform: uppercase; letter-spacing: .08em; font-size: .78rem; font-weight: 700; color: var(--muted); margin: 0; }
.hero .eyebrow { color: var(--accent); }
.lead { font-size: 1.12rem; color: var(--muted); }
@media (max-width: 760px) { .hero-grid { grid-template-columns: 1fr; } .hero { padding: 32px 0 36px; } }

.state-picker { margin: 20px 0; max-width: 520px; }
.picker-row { display: flex; gap: 8px; }
.picker-row select { flex: 1; }

/* Home */
.topic-group-title { font-size: .95rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 32px 0 12px; }
.topic-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.topic-card {
  display: flex; flex-direction: column; gap: 6px; padding: 20px; border-radius: var(--radius);
  background: var(--surface); box-shadow: var(--shadow); border: 1px solid var(--line); text-decoration: none; color: var(--text);
  border-top: 4px solid var(--c1);
}
.topic-card:hover { transform: translateY(-2px); transition: transform .15s; }
.group-driving .topic-card { border-top-color: var(--c4); }
.group-owning .topic-card { border-top-color: var(--c2); }
.group-motorcycle .topic-card { border-top-color: var(--c1); }
.topic-card-name { font-weight: 700; font-size: 1.08rem; }
.topic-card-text { color: var(--muted); font-size: .95rem; flex: 1; }
.topic-card-more { color: var(--link); font-weight: 600; font-size: .92rem; }
@media (max-width: 900px) { .topic-cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .topic-cards { grid-template-columns: 1fr; } }

.tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.tabs button {
  font: inherit; font-size: .95rem; padding: 8px 14px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--line); background: var(--surface); color: var(--text);
}
.tabs button[aria-selected="true"] { background: var(--brand-2); color: #fff; border-color: var(--brand-2); }
.js .tab-panel[hidden] { display: none; }
.map-more { text-align: center; font-weight: 600; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
@media (max-width: 760px) { .two-col { grid-template-columns: 1fr; } }
.changes { list-style: none; padding: 0; margin: 0; }
.changes li { display: flex; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.change-date { flex: 0 0 72px; font-size: .85rem; font-weight: 700; color: var(--muted); padding-top: 2px; }

.link-list { padding-left: 1.1em; }
.link-list li { margin: 6px 0; }
.link-list.cols { columns: 2; column-gap: 32px; }
@media (max-width: 600px) { .link-list.cols { columns: 1; } }

.state-grid { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 8px; }
.state-grid a {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 10px;
  background: var(--surface); border: 1px solid var(--line); text-decoration: none; color: var(--text);
}
.state-grid a:hover { border-color: var(--link); }
.state-grid .code { font-size: .78rem; font-weight: 700; color: var(--muted); min-width: 2.6em; }
.about-box { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 4px 24px 12px; margin: 40px 0; }

/* Articles */
.article { padding-bottom: 40px; }
.page-head { margin: 18px 0 8px; max-width: 820px; }
.prose { max-width: 780px; }
.callout { background: var(--c2-soft); color: var(--c2-ink); padding: 14px 18px; border-radius: var(--radius); font-weight: 600; }
.callout a { color: inherit; }

.answer {
  border-radius: var(--radius); padding: 20px 24px; margin: 8px 0 24px; max-width: 820px;
  background: var(--c5-soft); color: var(--c5-ink); border-left: 6px solid var(--c5);
}
.answer p { margin: 0 0 .4em; }
.answer-label { text-transform: uppercase; letter-spacing: .08em; font-size: .75rem; font-weight: 700; opacity: .8; }
.answer-value { font-size: 1.6rem; font-weight: 800; line-height: 1.2; }
.answer.c1 { background: var(--c1-soft); color: var(--c1-ink); border-color: var(--c1); }
.answer.c2 { background: var(--c2-soft); color: var(--c2-ink); border-color: var(--c2); }
.answer.c3 { background: var(--c3-soft); color: var(--c3-ink); border-color: var(--c3); }
.answer.c4 { background: var(--c4-soft); color: var(--c4-ink); border-color: var(--c4); }

.content-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 40px; align-items: start; }
.content-side { position: sticky; top: 76px; }
@media (max-width: 960px) { .content-grid { grid-template-columns: minmax(0, 1fr); } .content-side { position: static; } }
.side-box { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin-bottom: 16px; }
.side-title { font-weight: 700; margin-bottom: 8px; }
.side-box ul { list-style: none; padding: 0; margin: 0; }
.side-box li a { display: flex; justify-content: space-between; gap: 10px; padding: 9px 0; border-bottom: 1px solid var(--line); text-decoration: none; color: var(--text); }
.side-box li:last-child a { border: 0; }
.side-box li a b { color: var(--link); text-align: right; }
.side-box .legend { font-size: .78rem; }

.facts { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.facts th, .facts td { padding: 12px 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.facts tr:last-child th, .facts tr:last-child td { border-bottom: 0; }
.facts th { width: 46%; font-weight: 600; color: var(--muted); }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.data-table th, .data-table td { padding: 10px 14px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
.data-table tbody tr:last-child > * { border-bottom: 0; }
.data-table thead th { font-size: .85rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); background: var(--bg); position: sticky; top: 0; }
.data-table tbody th { font-weight: 600; }
.data-table tbody tr:hover { background: var(--bg); }
.data-table tr.is-current { background: var(--c2-soft); }
.data-table tr.is-diff th::after { content: " ≠"; color: var(--c1); }
[data-sortable] thead th { cursor: pointer; user-select: none; }
[data-sortable] thead th::after { content: " ↕"; opacity: .4; }
[data-sortable] thead th[aria-sort]::after { opacity: 1; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: .88rem; font-weight: 600; text-decoration: none; white-space: nowrap; }
.badge.c1 { background: var(--c1-soft); color: var(--c1-ink); }
.badge.c2 { background: var(--c2-soft); color: var(--c2-ink); }
.badge.c3 { background: var(--c3-soft); color: var(--c3-ink); }
.badge.c4 { background: var(--c4-soft); color: var(--c4-ink); }
.badge.c5 { background: var(--c5-soft); color: var(--c5-ink); }

/* Tile map */
.tilemap { margin: 20px 0; }
.tilemap svg { display: block; width: 100%; max-width: 720px; height: auto; margin: 0 auto; }
.tile rect { fill: var(--c5); transition: opacity .15s; }
.tile text { fill: #fff; font: 700 17px system-ui, sans-serif; pointer-events: none; }
.tile.c1 rect { fill: var(--c1); }
.tile.c2 rect { fill: var(--c2); }
.tile.c3 rect { fill: var(--c3); }
.tile.c4 rect { fill: var(--c4); }
.tile:hover rect, .tile:focus rect { opacity: .78; }
.tile.is-current rect { stroke: var(--text); stroke-width: 4; }
.tilemap.is-filtered .tile:not(.is-match) { opacity: .2; }
.legend { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 16px; margin-top: 12px; font-size: .9rem; }
.legend-item { display: inline-flex; align-items: center; gap: 6px; cursor: default; }
.js .legend-item { cursor: pointer; }
.legend small { color: var(--muted); }
.swatch { width: 14px; height: 14px; border-radius: 4px; background: var(--c5); display: inline-block; }
.swatch.c1 { background: var(--c1); } .swatch.c2 { background: var(--c2); } .swatch.c3 { background: var(--c3); } .swatch.c4 { background: var(--c4); }

/* State page */
.summary-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 20px 0; }
.summary-card { display: flex; flex-direction: column; gap: 4px; padding: 16px; border-radius: var(--radius); text-decoration: none; background: var(--c5-soft); color: var(--c5-ink); }
.summary-card.c1 { background: var(--c1-soft); color: var(--c1-ink); }
.summary-card.c2 { background: var(--c2-soft); color: var(--c2-ink); }
.summary-card.c3 { background: var(--c3-soft); color: var(--c3-ink); }
.summary-card.c4 { background: var(--c4-soft); color: var(--c4-ink); }
.summary-name { font-size: .82rem; text-transform: uppercase; letter-spacing: .06em; font-weight: 700; opacity: .85; }
.summary-value { font-size: 1.25rem; font-weight: 800; }
.summary-more { font-size: .88rem; font-weight: 600; }
@media (max-width: 760px) { .summary-grid { grid-template-columns: repeat(2, 1fr); } }

.compare-groups { columns: 3 220px; column-gap: 24px; }
.compare-group { break-inside: avoid; margin-bottom: 8px; }
.compare-group h2 { font-size: 1.05rem; margin: 1em 0 .3em; }
.compare-group ul { margin: 0; padding-left: 1.1em; }

/* Calculator */
.calc { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); max-width: 820px; }
.calc-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 18px; }
.field-wide { grid-column: 1 / -1; }
.js .calc .btn-big { display: none; }
.calc-result { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 4px; }
.calc-result[hidden] { display: none; }
.result-main { background: var(--c3-soft); color: var(--c3-ink); border-radius: 10px; padding: 14px 16px; }
.result-main span { display: block; font-size: .85rem; font-weight: 600; }
.result-main strong { font-size: 1.7rem; }
.result-note { grid-column: 1 / -1; color: var(--muted); font-size: .92rem; margin: 0; }
@media (max-width: 560px) { .calc-fields, .calc-result { grid-template-columns: minmax(0, 1fr); } .calc { padding: 16px; } }

/* FAQ, sources, ads */
.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; margin-bottom: 8px; }
.faq summary { padding: 14px 18px; font-weight: 600; cursor: pointer; }
.faq details p { padding: 0 18px 14px; margin: 0; }
.sources { margin-top: 36px; padding: 16px 20px; border-radius: var(--radius); background: var(--surface); border: 1px dashed var(--line); font-size: .9rem; color: var(--muted); }
.sources p:last-child { margin: 0; }
.ad { margin: 28px 0; min-height: 100px; }
.ad-placeholder { display: grid; place-items: center; border: 2px dashed var(--line); border-radius: var(--radius); color: var(--muted); font-size: .85rem; }

.not-found { text-align: center; padding: 60px 16px; }
.not-found .state-picker { margin: 20px auto; }

/* Footer */
.site-footer { background: var(--brand); color: #c4d2e2; margin-top: 40px; padding: 36px 0 20px; font-size: .93rem; }
.site-footer a { color: #e3ecf6; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr; gap: 24px; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin: 6px 0; }
.footer-logo { font-size: 1.2rem; font-weight: 700; color: #fff; margin-bottom: .4em; }
.footer-head { font-weight: 700; color: #fff; margin-bottom: .4em; }
.footer-note { border-top: 1px solid rgba(255, 255, 255, .12); margin-top: 24px; padding-top: 16px; font-size: .84rem; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }
@media print { .site-header, .site-footer, .ad, .content-side, .state-picker { display: none; } }
.compare-table th, .compare-table td { white-space: normal; }
.checklist { padding-left: 1.3em; }
.checklist li { margin: 8px 0; }
.page-figure { margin: 24px 0; }
.page-figure img { display: block; width: 100%; height: auto; border-radius: var(--radius); }
.page-figure figcaption { font-size: .88rem; color: var(--muted); margin-top: 6px; }
.lead-p { font-size: 1.05rem; }
.article-list li { margin: 6px 0; }
.faq summary h3 { display: inline; font-size: 1rem; margin: 0; }