/* Reset and layout primitives. Mobile-first: base rules target a ~360px viewport; wider
   layouts are added inside min-width layers, never narrowed with max-width. */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
}
img { max-width: 100%; display: block; }
a { color: var(--color-link); }
h1, h2, h3 { font-family: var(--font-serif); line-height: 1.2; margin: 0 0 var(--space-3); }
h1 { font-size: 1.75rem; }
h2 { font-size: 1.35rem; margin-top: var(--space-7); }
h3 { font-size: 1.1rem; }
p { margin: 0 0 var(--space-4); }
table { border-collapse: collapse; width: 100%; }
.tabular, td, th { font-variant-numeric: tabular-nums; }

main { padding: 0 var(--space-4) var(--space-8); }
.page-header { max-width: var(--max-content); margin: var(--space-6) auto var(--space-5); }
.section-narrow { max-width: var(--max-content); margin: 0 auto; }
.prose p { color: var(--color-ink-soft); }

.fixture-banner {
  background: var(--color-warn-bg);
  color: var(--color-warn);
  text-align: center;
  font-size: 0.85rem;
  padding: var(--space-2) var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

/* Header */
.site-header { border-bottom: 1px solid var(--color-border); background: var(--color-surface); }
.site-nav { display: flex; align-items: center; justify-content: space-between; max-width: var(--max-wide); margin: 0 auto; padding: var(--space-3) var(--space-4); position: relative; }
.brand { display: flex; align-items: center; gap: var(--space-2); text-decoration: none; color: var(--color-ink); }
.brand-mark { display: flex; align-items: center; }
.brand-mark img { height: 28px; width: 28px; display: block; }
.brand-name { font-family: var(--font-serif); font-weight: 700; font-size: 1.1rem; }
.nav-toggle { display: flex; flex-direction: column; justify-content: center; gap: 4px; width: 44px; height: 44px; background: none; border: none; cursor: pointer; }
.nav-toggle span { display: block; height: 2px; width: 22px; background: var(--color-ink); }
.nav-links {
  display: none; position: absolute; top: 100%; left: 0; right: 0;
  background: var(--color-surface); border-bottom: 1px solid var(--color-border);
  flex-direction: column; padding: var(--space-2) var(--space-4);
}
.nav-links.is-open { display: flex; }
.nav-link { display: block; padding: var(--space-3) 0; text-decoration: none; color: var(--color-ink-soft); font-weight: 500; }
.nav-link.is-active { color: var(--color-accent); }

@media (min-width: 48rem) {
  .nav-toggle { display: none; }
  .nav-links { display: flex; position: static; flex-direction: row; gap: var(--space-5); border: none; padding: 0; background: none; }
  .nav-link { padding: 0; }
}

/* Footer */
.site-footer { border-top: 1px solid var(--color-border); margin-top: var(--space-8); background: var(--color-surface-alt); }
/* max-content, not max-wide: the footer is a block of links and paragraphs, the same shape as
   the page's own text content, not a spread-out bar like the header nav. Using the wide
   container left its left edge far outside the narrow content column above it on desktop. */
.footer-inner { max-width: var(--max-content); margin: 0 auto; padding: var(--space-6) var(--space-4); font-size: 0.85rem; color: var(--color-ink-faint); }
.footer-links { display: flex; flex-wrap: wrap; gap: var(--space-4); margin-bottom: var(--space-3); }
.footer-links a { color: var(--color-ink-soft); text-decoration: none; }
.disclaimer { max-width: 40rem; }

/* Hero */
.hero { max-width: var(--max-content); margin: var(--space-6) auto var(--space-7); }
.hero h1 { font-size: 2rem; }
.hero-sub { color: var(--color-ink-soft); font-size: 1.05rem; }

/* Lists */
.link-list, .provider-list { list-style: none; padding: 0; margin: 0; }
.link-list li, .provider-list li { padding: var(--space-2) 0; border-bottom: 1px solid var(--color-border); display: flex; justify-content: space-between; align-items: center; gap: var(--space-3); flex-wrap: wrap; }

.model-badge { font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.03em; padding: 2px 8px; border-radius: 999px; border: 1px solid; white-space: nowrap; }
.model-published { color: var(--color-accent); border-color: var(--color-accent); background: var(--color-accent-soft); }
.model-quote-only { color: var(--color-ink-faint); border-color: var(--color-border-strong); background: var(--color-surface-alt); }
.model-partial { color: var(--color-warn); border-color: var(--color-warn); background: var(--color-warn-bg); }

.provider-table-wrap, .plan-table-wrap, .capability-matrix-wrap { max-width: var(--max-wide); margin: 0 auto; overflow-x: auto; }
.provider-table, .plan-table, .capability-matrix { min-width: 32rem; }
.provider-table th, .provider-table td,
.plan-table th, .plan-table td,
.capability-matrix th, .capability-matrix td { text-align: left; padding: var(--space-2) var(--space-3); border-bottom: 1px solid var(--color-border); font-size: 0.9rem; }
.source-link { font-size: 0.7rem; margin-left: var(--space-1); color: var(--color-ink-faint); text-decoration: none; border-bottom: 1px dotted var(--color-ink-faint); }
.cap-included { color: var(--color-accent); }
.cap-unavailable { color: var(--color-ink-faint); }
.cap-unknown { color: var(--color-warn); }
.cap-addon, .cap-addon-quote { color: var(--color-ink-soft); }

.confidence-table th, .confidence-table td { text-align: left; padding: var(--space-2) 0; border-bottom: 1px solid var(--color-border); vertical-align: top; }
.confidence-table th { width: 8rem; white-space: nowrap; padding-right: var(--space-3); }

.worked-example { border-top: 1px solid var(--color-border); padding: var(--space-3) 0; }

.faq details { border-bottom: 1px solid var(--color-border); padding: var(--space-3) 0; }
.faq summary { cursor: pointer; font-weight: 600; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary span::before { content: '+ '; color: var(--color-accent); }
.faq details[open] summary span::before { content: '\2212 '; }

.provider-notes { max-width: var(--max-content); margin: var(--space-6) auto; color: var(--color-ink-faint); font-size: 0.85rem; font-style: italic; }

.error-page { text-align: center; padding: var(--space-8) 0; }
.error-page h1 { font-size: 3rem; }

@media (min-width: 64rem) {
  main { padding-left: var(--space-6); padding-right: var(--space-6); }
}