/*
 * layout.css — Atidaryta shared layout primitives
 * Used by all pages. Import after tokens.css, before page-specific CSS.
 * Covers: reset basics, page wrapper, header, nav, prose container,
 * disclaimer block, data freshness strip, footer.
 * Component spec: atidaryta_component_spec_v1.md
 * Last updated: 2026-06-05
 */

/* ============================================================
   RESET BASICS
   ============================================================ */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scrollbar-gutter: stable;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: var(--text-body);
  line-height: var(--leading-body);
  color: var(--text-primary);
  background: var(--bg-page);
  min-height: 100vh;
}

a {
  color: var(--text-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--text-secondary);
}

/* ============================================================
   PAGE WRAPPER
   ============================================================ */

.page-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================================
   HEADER — static, simple top bar
   ============================================================ */

.site-header {
  border-bottom: 1px solid var(--border-hair);
  background: var(--bg-surface);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo block */
.site-header__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.lt-flag {
  display: flex;
  flex-direction: column;
  width: 24px;
  height: 16px;
  border-radius: 2px;
  overflow: hidden;
  flex-shrink: 0;
}

.lt-flag span {
  flex: 1;
  display: block;
}

.lt-flag .y { background: #FDB913; }
.lt-flag .g { background: #006A44; }
.lt-flag .r { background: #C1272D; }

.site-header__name {
  font-family: 'Source Serif 4', serif;
  font-size: var(--text-h3);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1;
  text-decoration: none;
}

/* Header actions — right side */
.site-header__actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-toggle {
  display: flex;
  gap: 4px;
}

.lang-toggle button {
  background: none;
  border: 1px solid var(--border-hair);
  border-radius: 4px;
  padding: 3px 8px;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: var(--text-micro);
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}

.lang-toggle button:hover,
.lang-toggle button.active {
  border-color: var(--border-strong);
  color: var(--text-primary);
}

.config-link {
  color: var(--text-faint);
  text-decoration: none;
  font-size: 18px;
  line-height: 1;
  padding: 4px;
}

.config-link:hover {
  color: var(--text-secondary);
}

/* ============================================================
   NAV — tab strip below header
   ============================================================ */

.site-nav {
  border-bottom: 1px solid var(--border-hair);
  background: var(--bg-page);
}

.site-nav__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  gap: 0;
}

.site-nav__tab {
  display: inline-block;
  padding: 12px 16px;
  font-size: var(--text-label);
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
  white-space: nowrap;
}

.site-nav__tab:hover {
  color: var(--text-primary);
}

.site-nav__tab.active {
  color: var(--text-primary);
  border-bottom-color: var(--text-primary);
}

/* ============================================================
   PROSE CONTAINER — for reading pages (about, methodology, privacy)
   ============================================================ */

.prose {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 0 80px;
}

.prose h1 {
  font-family: 'Source Serif 4', serif;
  font-size: var(--text-h1);
  font-weight: 600;
  line-height: var(--leading-h);
  color: var(--text-primary);
  margin-bottom: 8px;
}

.prose .page-subtitle {
  font-size: var(--text-label);
  color: var(--text-secondary);
  margin-bottom: 40px;
}

.prose h2 {
  font-family: 'Source Serif 4', serif;
  font-size: var(--text-h2);
  font-weight: 600;
  line-height: var(--leading-h);
  color: var(--text-primary);
  margin-top: 48px;
  margin-bottom: 16px;
}

.prose h3 {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: var(--text-body);
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 24px;
  margin-bottom: 8px;
}

.prose p {
  color: var(--text-primary);
  margin-bottom: 16px;
}

.prose ul, .prose ol {
  padding-left: 24px;
  margin-bottom: 16px;
}

.prose li {
  margin-bottom: 6px;
}

.prose a {
  color: var(--text-primary);
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
  font-size: var(--text-small);
}

.prose th {
  text-align: left;
  font-weight: 500;
  font-size: var(--text-micro);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-strong);
  padding: 8px 12px 8px 0;
}

.prose td {
  border-bottom: 1px solid var(--border-hair);
  padding: 10px 12px 10px 0;
  vertical-align: top;
}

.prose hr {
  border: none;
  border-top: 1px solid var(--border-hair);
  margin: 40px 0;
}

/* ============================================================
   DISCLAIMER BLOCK
   Per design brief v4: load-bearing credibility infrastructure.
   Appears on methodology page AI blocks and page footers.
   ============================================================ */

.disclaimer {
  border: 1px solid var(--border-hair);
  border-radius: 4px;
  background: var(--bg-sunken);
  padding: 16px 20px;
  margin: 32px 0;
}

.disclaimer p {
  font-size: var(--text-small);
  color: var(--text-secondary);
  margin: 0;
  line-height: var(--leading-body);
}

.disclaimer strong {
  color: var(--text-primary);
  font-weight: 500;
}

/* ============================================================
   DATA FRESHNESS STRIP
   Shows last sync time. Populated by JS from /api/sync-status.
   ============================================================ */

.freshness-strip {
  font-size: var(--text-micro);
  color: var(--text-faint);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
}

.freshness-strip__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-faint);
  flex-shrink: 0;
}

.freshness-strip__dot.ok    { background: var(--vote-for); }
.freshness-strip__dot.warn  { background: var(--signal-shift); }
.freshness-strip__dot.error { background: var(--vote-against); }

/* ============================================================
   FOOTER
   ============================================================ */

.site-footer {
  border-top: 1px solid var(--border-hair);
  background: var(--bg-page);
  padding: 32px 0;
  margin-top: 48px;
}

.site-footer__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.site-footer__disclaimer {
  font-size: var(--text-small);
  color: var(--text-secondary);
  margin-bottom: 16px;
  max-width: 720px;
  line-height: var(--leading-body);
}

.site-footer__links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  font-size: var(--text-small);
  color: var(--text-faint);
}

.site-footer__links a {
  color: var(--text-faint);
  text-decoration: none;
}

.site-footer__links a:hover {
  color: var(--text-secondary);
}

/* ============================================================
   MOBILE — basics for prose pages
   ============================================================ */

@media (max-width: 600px) {
  .page-wrapper,
  .site-header__inner,
  .site-nav__inner,
  .site-footer__inner {
    padding: 0 16px;
  }

  .prose {
    padding: 32px 0 48px;
  }

  .prose h1 { font-size: var(--text-h2); }
  .prose h2 { font-size: var(--text-h3); }

  .site-nav__tab {
    padding: 10px 12px;
    font-size: var(--text-small);
  }
}