/* Vintage Telephone Switch Comparison - Styles */
* { box-sizing: border-box; }
html { font-size: 16px; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: #222;
  background: #fafafa;
}
header {
  background: #1a1a1a;
  color: #fff;
  padding: 1rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 10;
}
.logo {
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  font-size: 1.25rem;
}
nav a {
  color: #ccc;
  text-decoration: none;
  margin-left: 1.5rem;
  font-size: 0.9rem;
}
nav a:hover { color: #fff; }
nav a[aria-current='page'] { color: #fff; }
main {
  max-width: 75rem;
  margin: 0 auto;
  padding: 1.5rem;
}
section { margin-bottom: 2rem; }
.hero h1 {
  font-size: 2rem;
  margin: 0 0 0.75rem;
  color: #0a2f4a;
}
.hero p {
  font-size: 1.1rem;
  color: #555;
  margin: 0 0 1.5rem;
}
.search-filters {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.search-filters input, .search-filters select {
  padding: 0.5rem 0.75rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 1rem;
  min-width: 200px;
}
.search-filters input:focus, .search-filters select:focus {
  outline: 2px solid #0a2f4a;
  border-color: #0a2f4a;
}
table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
thead {
  background: #0a2f4a;
  color: #fff;
}
th, td {
  padding: 0.875rem 1rem;
  text-align: left;
  border-bottom: 1px solid #eee;
}
th { font-weight: 600; }
td strong { color: #0a2f4a; }
.result-summary { margin-top: 1rem; font-size: 0.95rem; color: #666; }
section h2 { font-size: 1.5rem; margin: 0 0 1rem; color: #0a2f4a; }
.audio-quality ul, .faq-section dl {
  margin: 0 0 1rem;
  padding-left: 1.5rem;
}
.audio-quality li { margin-bottom: 0.5rem; }
FDA dt { font-weight: 600; margin-top: 1rem; }
FAQS dd { margin: 0 0 0.75rem; color: #555; }
.checklist {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 1rem 0;
}
.checklist label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: default;
}
.checklist input[type='checkbox'] {
  width: 1.1rem;
  height: 1.1rem;
}
.cost-calculator {
  background: #f5f9ff;
  border-left: 4px solid #0a2f4a;
  padding: 1rem;
  margin-top: 1rem;
}
.cost-calculator label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}
.cost-calculator input {
  width: 100%;
  padding: 0.375rem;
  border: 1px solid #bbb;
  border-radius: 3px;
  font-size: 1rem;
}
#totalCost { font-weight: 700; color: #0a2f4a; }
.version-note { font-size: 0.85rem; color: #888; text-align: center; margin: 2rem 0; }
footer {
  background: #1a1a1a;
  color: #ccc;
  text-align: center;
  padding: 1.5rem;
  font-size: 0.9rem;
}
footer a { color: #99c; }
@media (max-width: 600px) {
  .search-filters { flex-direction: column; }
  .hero h1 { font-size: 1.75rem; }
  table {
    font-size: 0.9rem;
  }
  th, td { padding: 0.6rem 0.75rem; }
}
@media (max-width: 400px) {
  nav a { margin-left: 0.75rem; }
}



/* Factory-injected deployment helpers. The AI owns the site design above this block. */
.ad-unit {
  width: min(100%, 720px);
  min-height: 120px;
  margin: 24px auto;
  display: block;
}

.legal-page {
  width: min(900px, calc(100% - 32px));
  margin: 40px auto;
}

.factory-fallback-nav {
  width: min(900px, calc(100% - 32px));
  margin: 24px auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  font-size: 0.95rem;
}

.factory-fallback-nav a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}