/* base.css — layout + component styles that reference theme.css variables.
 * This file is theme-agnostic: it works for all 4 theme presets because it
 * only uses CSS custom properties defined in theme.css.
 */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; }

img, svg { max-width: 100%; height: auto; display: block; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0;
  margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0);
  white-space: nowrap; border: 0;
}

/* Header */
.site-header {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) 0;
}
.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-6);
}
.site-header .brand {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--color-primary);
  text-decoration: none;
}
.site-header nav { display: flex; gap: var(--space-6); }
.site-header nav a {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
}
.site-header nav a:hover { color: var(--color-primary); }

/* Footer */
.site-footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: var(--space-12) 0;
  margin-top: var(--space-16);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}
.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-6);
}
.site-footer nav { display: flex; flex-wrap: wrap; gap: var(--space-4); }
.site-footer a { color: var(--color-text-muted); text-decoration: none; }
.site-footer a:hover { color: var(--color-primary); }

/* Hero */
.hero {
  padding: var(--space-16) 0 var(--space-12);
  background: linear-gradient(180deg, var(--color-bg-alt), var(--color-bg));
  text-align: center;
}
.hero .eyebrow {
  color: var(--color-primary);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  margin: 0 0 var(--space-3);
}
.hero h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  margin: 0 0 var(--space-4);
  max-width: 22ch;
  margin-inline: auto;
}
.hero .lead {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 58ch;
  margin: 0 auto var(--space-6);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-weight: 600;
  text-decoration: none;
  border: 2px solid transparent;
  transition: all 0.15s ease;
  cursor: pointer;
}
.btn-primary {
  background: var(--color-accent);
  color: #0f172a;
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-secondary:hover { background: var(--color-primary); color: var(--color-text-inverse); }

/* Comparison table */
.comparison-table-wrap {
  overflow-x: auto;
  margin: var(--space-8) 0;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  background: var(--color-bg-card);
}
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}
.comparison-table th,
.comparison-table td {
  padding: var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}
.comparison-table thead th {
  background: var(--color-bg-alt);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}
.comparison-table tbody tr.featured {
  background: color-mix(in srgb, var(--color-accent) 8%, var(--color-bg-card));
}
.comparison-table .product-name {
  display: flex; align-items: center; gap: var(--space-3);
  font-weight: 600;
}
.comparison-table .badge {
  display: inline-block;
  background: var(--color-accent);
  color: #0f172a;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.7rem;
  margin-left: var(--space-2);
}
.comparison-table .stars { color: var(--color-accent); letter-spacing: 2px; }
.comparison-table .rating-num { margin-left: var(--space-2); font-weight: 600; }
.comparison-table .pros ul { margin: 0; padding-left: var(--space-4); }
.comparison-table .price { font-weight: 700; white-space: nowrap; }

/* Review card */
.review-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin: var(--space-6) 0;
  box-shadow: var(--shadow-sm);
}
.review-card header { display: flex; gap: var(--space-4); align-items: flex-start; }
.review-card img { border-radius: var(--radius-md); }
.review-card h3 { margin: 0 0 var(--space-2); }
.review-card .rating { color: var(--color-accent); margin: 0 0 var(--space-2); }
.review-card .price { font-weight: 700; color: var(--color-primary); margin: 0; }
.review-card .summary { margin: var(--space-4) 0; color: var(--color-text-muted); }
.review-card footer { display: flex; justify-content: space-between; align-items: center; gap: var(--space-4); flex-wrap: wrap; }
.review-card .author { color: var(--color-text-muted); font-size: 0.85rem; margin: 0; }

/* FAQ */
.faq { margin: var(--space-12) 0; }
.faq h2 { margin-bottom: var(--space-6); }
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-3);
  background: var(--color-bg-card);
}
.faq-item summary {
  padding: var(--space-4) var(--space-6);
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; float: right; font-size: 1.4rem; line-height: 1; }
.faq-item[open] summary::after { content: '−'; }
.faq-answer { padding: 0 var(--space-6) var(--space-6); color: var(--color-text-muted); }

/* ── Prose — rich article typography ──────────────────────────────────────── */
.prose {
  max-width: 74ch;
  margin-inline: auto;
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--color-text);
  padding: var(--space-8) 0 var(--space-16);
}

/* ── Paragraphs ── */
.prose p { margin: 0 0 1.5em; }
.prose p:last-child { margin-bottom: 0; }

/* ── Headings ── */
.prose h2 {
  font-size: clamp(1.25rem, 2.5vw, 1.6rem);
  font-weight: 800;
  color: var(--color-text);
  margin: 2.5em 0 0.75em;
  padding-left: 1rem;
  border-left: 4px solid var(--color-primary);
  line-height: 1.25;
}
.prose h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 2em 0 0.6em;
}
.prose h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 1.5em 0 0.5em;
}

/* ── Lists ── */
.prose ul, .prose ol {
  padding-left: 1.5em;
  margin: 0 0 1.5em;
}
.prose li {
  margin-bottom: 0.45em;
  line-height: 1.65;
}
.prose ul > li { list-style-type: none; position: relative; padding-left: 0.5em; }
.prose ul > li::before {
  content: '›';
  position: absolute;
  left: -1em;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 1.1em;
}
.prose ol > li { list-style-type: decimal; }

/* ── Links ── */
.prose a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 0.15s;
}
.prose a:hover { color: var(--color-primary-dark, #d97706); }

/* ── Strong / em ── */
.prose strong { font-weight: 700; color: var(--color-text); }
.prose em { font-style: italic; }

/* ── Tables ── */
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 2em 0;
  font-size: 0.9rem;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(0,0,0,0.07);
}
.prose thead th {
  background: var(--color-bg-alt, #f4f4f5);
  font-weight: 700;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  padding: 10px 14px;
  text-align: left;
  border-bottom: 2px solid var(--color-border);
}
.prose tbody td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}
.prose tbody tr:last-child td { border-bottom: none; }
.prose tbody tr:hover { background: var(--color-bg-alt, rgba(0,0,0,0.02)); }
.prose tbody tr:nth-child(even) { background: rgba(0,0,0,0.018); }

/* ── Blockquote as callout ── */
.prose blockquote {
  margin: 2em 0;
  padding: 1.25rem 1.5rem;
  background: rgba(246,130,31,0.07);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--color-text);
  font-style: normal;
}
.prose blockquote p { margin: 0; }
.prose blockquote strong { color: var(--color-primary); }

/* ── Horizontal rule ── */
.prose hr {
  border: none;
  border-top: 2px solid var(--color-border);
  margin: 3em 0;
}

/* ── Code ── */
.prose code {
  background: var(--color-bg-alt, #f4f4f5);
  border: 1px solid var(--color-border);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.875em;
  color: var(--color-primary);
}

/* ── Article wrapper — two-column on wide screens ── */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 3rem;
  align-items: start;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}
.article-sidebar {
  position: sticky;
  top: 80px;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.article-meta-bar {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 0.5rem;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}
.article-meta-bar .meta-item { display: flex; align-items: center; gap: 4px; }
.article-meta-bar .meta-sep { opacity: 0.3; }

/* TOC */
.toc-box {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
}
.toc-box h4 {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin: 0 0 0.75rem;
  padding: 0;
  border: none;
}
.toc-box ol {
  margin: 0;
  padding-left: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.toc-box li { font-size: 0.82rem; line-height: 1.4; }
.toc-box a { color: var(--color-text-muted); text-decoration: none; }
.toc-box a:hover { color: var(--color-primary); }

/* Verdict box */
.verdict-box {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
}
.verdict-box h4 {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin: 0 0 0.75rem;
}
.verdict-score {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--color-text);
  line-height: 1;
}
.verdict-score span { font-size: 1rem; color: var(--color-text-muted); }
.verdict-stars { font-size: 0.9rem; color: #F59E0B; margin: 2px 0 8px; }
.verdict-label { font-size: 0.78rem; font-weight: 700; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.04em; }

@media (max-width: 900px) {
  .article-layout {
    grid-template-columns: 1fr;
  }
  .article-sidebar { display: none; }
  .prose { padding: var(--space-6) 0 var(--space-12); }
}