:root { color-scheme: light; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
* { box-sizing: border-box; }
body { margin: 0; color: #1f2937; background: #f8fafc; line-height: 1.7; }
a { color: #2563eb; text-decoration: none; }
a:hover { text-decoration: underline; }
.seo-nav { max-width: 1120px; margin: auto; padding: 20px 24px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.seo-brand { color: #4f46e5; font-size: 1.25rem; font-weight: 800; }
.seo-nav-links { display: flex; gap: 16px; align-items: center; font-size: .92rem; }
.seo-main { max-width: 960px; margin: auto; padding: 56px 24px 80px; }
.seo-hero { text-align: center; max-width: 780px; margin: 0 auto 48px; }
.seo-kicker { color: #2563eb; font-weight: 800; text-transform: uppercase; letter-spacing: .12em; font-size: .78rem; }
h1 { margin: 12px 0 18px; color: #111827; font-size: clamp(2.2rem, 6vw, 4.2rem); line-height: 1.1; letter-spacing: -.04em; }
h2 { margin-top: 42px; color: #111827; font-size: 1.75rem; line-height: 1.25; }
h3 { color: #111827; margin-bottom: 6px; }
.seo-lead { font-size: 1.18rem; color: #4b5563; }
.seo-cta { display: inline-block; margin-top: 20px; padding: 13px 22px; border-radius: 12px; color: white; background: linear-gradient(90deg, #2563eb, #7c3aed); font-weight: 800; box-shadow: 0 10px 24px rgba(37, 99, 235, .2); }
.seo-cta:hover { text-decoration: none; transform: translateY(-1px); }
.seo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.seo-card { padding: 22px; background: white; border: 1px solid #e5e7eb; border-radius: 16px; box-shadow: 0 8px 24px rgba(15, 23, 42, .04); }
.seo-example { padding: 20px 24px; background: #111827; color: #e5e7eb; border-radius: 14px; overflow-x: auto; }
.seo-faq { padding: 14px 0; border-bottom: 1px solid #e5e7eb; }
.seo-footer { max-width: 960px; margin: auto; padding: 24px; border-top: 1px solid #e5e7eb; color: #6b7280; font-size: .9rem; }
@media (max-width: 700px) { .seo-nav-links { gap: 8px; font-size: .8rem; } .seo-main { padding-top: 32px; } .seo-grid { grid-template-columns: 1fr; } }