/* base.css — layout + component styles that reference theme.css variables. */

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

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;
  position: relative;
  z-index: 100;
}
.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;
  flex-shrink: 0;
}
.site-header .main-nav { display: flex; gap: var(--space-6); }
.site-header .main-nav a {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
}
.site-header .main-nav a:hover { color: var(--color-primary); }

/* Hamburger button — hidden on desktop */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 5px;
  z-index: 101;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile nav */
@media (max-width: 768px) {
  .hamburger { display: flex; }
  .site-header .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: var(--space-4);
    gap: 0;
    box-shadow: var(--shadow-md);
  }
  .site-header .main-nav.open { display: flex; }
  .site-header .main-nav a {
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--color-border);
  }
  .site-header .main-nav a:last-child { border-bottom: none; }
}

/* Footer */
.site-footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: var(--space-12) 0;
  margin-top: 0;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}
.site-footer .container {
  display: block;
}
.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(1.6rem, 4vw, 3.2rem);
  margin: 0 0 var(--space-4);
  max-width: 100%;
  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 — already has overflow-x wrapper */
.comparison-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  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 */
.prose { max-width: 72ch; margin-inline: auto; }
.prose p { margin: 0 0 var(--space-4); }
.prose h2 { margin-top: var(--space-12); margin-bottom: var(--space-4); }
.prose h3 { margin-top: var(--space-8); margin-bottom: var(--space-3); }
.prose ul, .prose ol { padding-left: var(--space-6); margin: 0 0 var(--space-4); }
.prose a { color: var(--color-primary); }

/* Global mobile text */
@media (max-width: 768px) {
  h1, h2, h3, p, li, td, th { max-width: 100%; overflow-wrap: break-word; }
}