/* Written pages (landing, compare, learn) — the same file on all four Optanik sites. */
.seo {
  --seo-accent: var(--blue-hot, #7ec8ff);
  --seo-accent-deep: var(--blue, #3aa0ff);
  max-width: 76rem;
  margin: 0 auto;
  padding: calc(var(--header-h, 4.5rem) + 2.2rem) 1rem 4rem;
  color: var(--ink);
}
.seo-gold { --seo-accent: var(--gold-hot, #f0d47a); --seo-accent-deep: var(--gold, #d4af37); }

.seo-crumbs { display: flex; flex-wrap: wrap; gap: 0.35rem; margin: 0 0 1.4rem; padding: 0; list-style: none; font-size: 0.85rem; color: var(--ink-dim); }
.seo-crumbs li + li::before { content: "›"; margin-right: 0.35rem; opacity: 0.6; }
.seo-crumbs a { color: var(--ink-dim); text-decoration: none; }
.seo-crumbs a:hover { color: var(--ink); }

.seo-head { max-width: 50rem; margin-bottom: 2.4rem; }
.seo-kicker { margin: 0 0 0.6rem; font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--seo-accent); }
.seo-head h1 { margin: 0 0 1rem; font-size: clamp(2rem, 4.6vw, 3.1rem); line-height: 1.08; letter-spacing: -0.02em; }
.seo-lead { margin: 0 0 1rem; font-size: 1.15rem; line-height: 1.6; color: var(--ink-dim); }
.seo-meta { margin: 0; font-size: 0.85rem; color: var(--ink-dim); }

.seo-layout { display: grid; grid-template-columns: minmax(0, 1fr); gap: 2.5rem; }
@media (min-width: 64rem) {
  .seo-layout.has-toc { grid-template-columns: 15rem minmax(0, 1fr); }
}
.seo-toc { align-self: start; position: sticky; top: calc(var(--header-h, 4.5rem) + 1rem); font-size: 0.9rem; }
.seo-toc p { margin: 0 0 0.6rem; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-dim); }
.seo-toc ol { margin: 0; padding: 0; list-style: none; border-left: 1px solid var(--line-strong); }
.seo-toc a { display: block; padding: 0.3rem 0 0.3rem 0.9rem; color: var(--ink-dim); text-decoration: none; line-height: 1.35; }
.seo-toc a:hover { color: var(--ink); }
@media (max-width: 63.99rem) { .seo-toc { position: static; } }

.seo-body { max-width: 46rem; font-size: 1.04rem; line-height: 1.72; }
.seo-body h2 { margin: 2.8rem 0 0.8rem; font-size: 1.6rem; line-height: 1.2; letter-spacing: -0.01em; scroll-margin-top: calc(var(--header-h, 4.5rem) + 1rem); }
.seo-body h3 { margin: 1.8rem 0 0.5rem; font-size: 1.15rem; scroll-margin-top: calc(var(--header-h, 4.5rem) + 1rem); }
.seo-body > :first-child { margin-top: 0; }
.seo-body p, .seo-body li { color: #c9d1de; }
.seo-gold .seo-body p, .seo-gold .seo-body li { color: #ddd5c6; }
.seo-body strong { color: var(--ink); }
.seo-body a { color: var(--seo-accent); text-decoration: underline; text-underline-offset: 0.18em; }
.seo-body ul, .seo-body ol { padding-left: 1.3rem; }
.seo-body li { margin: 0.35rem 0; }
.seo-body code { font-family: var(--mono); font-size: 0.9em; padding: 0.1em 0.35em; border-radius: 0.3rem; background: var(--bg-card); }

.seo-table { margin: 1.4rem 0; overflow-x: auto; border: 1px solid var(--line-strong); border-radius: var(--radius, 1rem); }
.seo-table table { width: 100%; border-collapse: collapse; font-size: 0.94rem; line-height: 1.45; }
.seo-table th, .seo-table td { padding: 0.75rem 0.9rem; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
.seo-table thead th { background: var(--bg-card); color: var(--ink); font-weight: 600; white-space: nowrap; }
.seo-table tbody th { color: var(--ink); font-weight: 600; }
.seo-table td { color: #c9d1de; }
.seo-table tr:last-child th, .seo-table tr:last-child td { border-bottom: 0; }
@media (max-width: 40rem) { .seo-table table { min-width: 34rem; } }

.seo-note { margin: 1.5rem 0; padding: 1rem 1.2rem; border-left: 3px solid var(--seo-accent-deep); border-radius: 0 0.7rem 0.7rem 0; background: var(--bg-card); color: #c9d1de; }
.seo-note a { color: var(--seo-accent); }
.seo-cta { display: flex; flex-wrap: wrap; gap: 0.7rem; margin: 1.6rem 0; }
.seo-cta .btn, .seo-band .btn { text-decoration: none; }

.seo-cards { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fill, minmax(min(100%, 20rem), 1fr)); margin: 0 0 2rem; }
.seo-card { display: flex; flex-direction: column; gap: 0.5rem; padding: 1.3rem 1.4rem; border: 1px solid var(--line-strong); border-radius: var(--radius, 1rem); background: var(--bg-soft); color: var(--ink); text-decoration: none; transition: border-color 0.15s, transform 0.15s; }
.seo-card:hover { border-color: var(--seo-accent-deep); transform: translateY(-2px); }
.seo-card strong { font-size: 1.1rem; line-height: 1.3; }
.seo-card span { color: var(--ink-dim); font-size: 0.95rem; line-height: 1.5; }
.seo-card small { margin-top: auto; color: var(--seo-accent); font-family: var(--mono); font-size: 0.75rem; }

.seo-band { margin-top: 3.5rem; padding: 2rem; border: 1px solid var(--line-strong); border-radius: calc(var(--radius, 1rem) * 1.3); background: var(--bg-soft); }
.seo-band h2 { margin: 0 0 0.5rem; font-size: 1.5rem; }
.seo-band p { margin: 0 0 1.2rem; color: var(--ink-dim); }
.seo-band .seo-band-actions { display: flex; flex-wrap: wrap; gap: 0.7rem; margin: 0; }

.seo-related { margin-top: 3rem; }
.seo-related h2 { font-size: 1.2rem; margin: 0 0 1rem; }