:root { color-scheme: dark; --bg: #0a0d3a; --surface: #171c4b; --ink: #fff; --muted: #b9bed8; --green: #35ed7e; --purple: #5865f2; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--bg); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
a { color: inherit; }
.site-header { max-width: 1120px; margin: 0 auto; padding: 24px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { font-size: 18px; font-weight: 950; letter-spacing: -.04em; text-decoration: none; }
.site-nav { display: flex; align-items: center; gap: 22px; font-size: 14px; font-weight: 750; }
.site-nav a { text-decoration: none; }
.site-nav .cta { padding: 11px 15px; border-radius: 11px; color: #000; background: var(--green); }
.guide { max-width: 1120px; margin: 0 auto; padding: 80px 24px 120px; }
.eyebrow { margin: 0 0 20px; color: var(--green); font-size: 13px; font-weight: 900; letter-spacing: .12em; }
h1 { max-width: 960px; margin: 0; font-size: clamp(54px, 8vw, 100px); line-height: .93; letter-spacing: -.06em; text-wrap: balance; }
.lede { max-width: 800px; margin: 30px 0 0; color: var(--muted); font-size: clamp(19px, 2vw, 24px); line-height: 1.55; }
.quick-answer { margin: 54px 0 90px; padding: 30px; border: 1px solid rgba(255,255,255,.15); border-radius: 24px; background: var(--surface); }
.quick-answer strong { color: var(--green); }
.quick-answer p { margin: 10px 0 0; font-size: 17px; line-height: 1.7; }
.toc { margin-bottom: 84px; padding: 28px 30px; border-radius: 24px; color: #000; background: var(--green); }
.toc h2 { margin: 0 0 15px; font-size: 18px; }
.toc ol { margin: 0; padding-left: 22px; columns: 2; column-gap: 40px; }
.toc li { margin: 8px 0; break-inside: avoid; }
.content-section { max-width: 880px; padding: 64px 0; border-top: 1px solid rgba(255,255,255,.16); }
.content-section h2 { margin: 0 0 22px; font-size: clamp(34px, 5vw, 54px); line-height: 1; letter-spacing: -.045em; }
.content-section h3 { margin: 36px 0 12px; font-size: 23px; }
.content-section p, .content-section li { color: var(--muted); font-size: 17px; line-height: 1.75; }
.content-section li + li { margin-top: 10px; }
.content-section strong { color: var(--ink); }
.format-grid { margin-top: 28px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.format-grid article { padding: 24px; border-radius: 18px; background: var(--surface); }
.format-grid h3 { margin: 0 0 8px; color: var(--green); }
.format-grid p { margin: 0; font-size: 15px; }
.guide-cta { margin-top: 70px; padding: clamp(36px, 6vw, 68px); border-radius: 32px; color: #000; background: var(--green); }
.guide-cta h2 { max-width: 700px; margin: 0; font-size: clamp(38px, 6vw, 66px); line-height: 1; letter-spacing: -.05em; }
.guide-cta p { max-width: 680px; font-size: 18px; line-height: 1.6; }
.guide-cta a { margin-top: 12px; padding: 15px 20px; display: inline-block; border-radius: 12px; color: #fff; background: #000; font-weight: 850; text-decoration: none; }
.site-footer { max-width: 1120px; margin: 0 auto; padding: 36px 24px 60px; border-top: 1px solid rgba(255,255,255,.15); color: var(--muted); font-size: 14px; }
@media (max-width: 700px) { .site-header { align-items: flex-start; } .site-nav { flex-wrap: wrap; justify-content: flex-end; gap: 12px; } .guide { padding-top: 54px; } .toc ol { columns: 1; } .format-grid { grid-template-columns: 1fr; } }