:root {
  --guide-ink: #0a0a0a;
  --guide-muted: #646464;
  --guide-faint: #8b8b8b;
  --guide-line: rgba(0, 0, 0, 0.12);
  --guide-wash: #f5f5f4;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--guide-ink); background: #fff; font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif; overflow-x: hidden; }
a { color: inherit; }

.guide-nav { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 20px max(24px, calc((100vw - 1180px) / 2)); background: rgba(255,255,255,.92); border-bottom: 1px solid var(--guide-line); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); }
.guide-brand { text-decoration: none; font-size: 16px; font-weight: 750; letter-spacing: -0.7px; white-space: nowrap; }
.guide-brand span { color: var(--guide-muted); font-weight: 350; }
.guide-links { display: flex; align-items: center; gap: 26px; font-size: 14px; color: var(--guide-muted); }
.guide-links a { text-decoration: none; }
.guide-links a:hover, .guide-inline:hover { color: var(--guide-ink); }
.guide-nav-cta, .guide-btn-primary { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 22px; background: var(--guide-ink); color: #fff; border-radius: 999px; font-weight: 700; text-decoration: none; font-size: 14px; transition: transform .2s ease, opacity .2s ease; }
.guide-nav-cta:hover, .guide-btn-primary:hover { opacity: .84; transform: translateY(-1px); }

.guide-wrap { width: min(100% - 48px, 1040px); margin: 0 auto; }
.guide-hero { padding: clamp(64px, 10vw, 126px) 0 clamp(54px, 8vw, 96px); border-bottom: 1px solid var(--guide-line); }
.guide-kicker { margin: 0 0 16px; color: var(--guide-faint); font-size: 11px; font-weight: 800; letter-spacing: .17em; text-transform: uppercase; }
.guide-hero h1 { max-width: 800px; margin: 0; font-size: clamp(44px, 7.2vw, 86px); line-height: .95; letter-spacing: -.075em; }
.guide-lede { max-width: 690px; margin: 28px 0 0; color: var(--guide-muted); font-size: clamp(18px, 2.2vw, 22px); line-height: 1.55; letter-spacing: -.02em; }
.guide-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.guide-btn-secondary { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 22px; border: 1px solid var(--guide-line); border-radius: 999px; font-weight: 700; text-decoration: none; font-size: 14px; transition: border-color .2s ease, transform .2s ease; }
.guide-btn-secondary:hover { border-color: var(--guide-ink); transform: translateY(-1px); }

.guide-section { padding: clamp(50px, 7vw, 88px) 0; border-bottom: 1px solid var(--guide-line); }
.guide-section:last-of-type { border-bottom: 0; }
.guide-section-grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(32px, 6vw, 96px); }
.guide-section-label { margin: 3px 0 0; color: var(--guide-faint); font-size: 11px; font-weight: 800; letter-spacing: .17em; text-transform: uppercase; }
.guide-section h2 { max-width: 690px; margin: 0 0 18px; font-size: clamp(30px, 4.1vw, 50px); line-height: 1.03; letter-spacing: -.055em; }
.guide-copy { max-width: 690px; color: var(--guide-muted); font-size: 17px; line-height: 1.72; }
.guide-copy p { margin: 0 0 18px; }
.guide-inline { color: var(--guide-ink); text-underline-offset: 3px; }

.guide-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: 34px; }
.guide-card { min-width: 0; padding: 24px; border: 1px solid var(--guide-line); border-radius: 16px; }
.guide-card-num { margin: 0 0 38px; color: var(--guide-faint); font-size: 11px; font-weight: 800; letter-spacing: .12em; }
.guide-card h3 { margin: 0 0 10px; font-size: 18px; line-height: 1.15; letter-spacing: -.03em; }
.guide-card p { margin: 0; color: var(--guide-muted); font-size: 14px; line-height: 1.65; }

.guide-faq { display: grid; gap: 12px; }
.guide-faq-item { padding: 20px 22px; border: 1px solid var(--guide-line); border-radius: 14px; background: var(--guide-wash); }
.guide-faq-item h3 { margin: 0 0 8px; font-size: 16px; letter-spacing: -.02em; }
.guide-faq-item p { margin: 0; color: var(--guide-muted); font-size: 15px; line-height: 1.68; }

.guide-cta { margin: clamp(48px, 8vw, 96px) 0; padding: clamp(34px, 6vw, 68px); border-radius: 22px; background: var(--guide-ink); color: #fff; text-align: center; }
.guide-cta h2 { max-width: 680px; margin: 0 auto; font-size: clamp(32px, 5vw, 58px); line-height: 1; letter-spacing: -.06em; }
.guide-cta p { max-width: 550px; margin: 18px auto 28px; color: rgba(255,255,255,.68); font-size: 16px; line-height: 1.65; }
.guide-cta .guide-btn-primary { background: #fff; color: var(--guide-ink); }
.guide-cta .guide-btn-secondary { border-color: rgba(255,255,255,.32); color: #fff; }
.guide-footer { padding: 34px 0 52px; color: var(--guide-muted); font-size: 13px; line-height: 1.65; }
.guide-footer p { margin: 0 0 8px; }

@media (max-width: 760px) {
  .guide-nav { padding: 16px 20px; }
  .guide-links { display: none; }
  .guide-nav-cta { min-height: 40px; padding: 0 16px; font-size: 13px; }
  .guide-wrap { width: min(100% - 40px, 1040px); }
  .guide-section-grid, .guide-cards { grid-template-columns: 1fr; }
  .guide-card-num { margin-bottom: 22px; }
  .guide-actions { flex-direction: column; align-items: stretch; }
  .guide-actions a { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}