:root {
  --ink: #1c1c1c;
  --paper: #fafaf9;
  --stone: #edeae3;
  --line: rgba(28, 28, 28, 0.14);
  --muted: rgba(28, 28, 28, 0.62);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: 'Plus Jakarta Sans', sans-serif; }
a { color: inherit; }
.seo-shell { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.seo-nav { background: rgba(250,250,249,.96); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20; backdrop-filter: blur(12px); }
.seo-nav__inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.seo-brand { text-decoration: none; font-size: 20px; font-weight: 800; letter-spacing: -.04em; white-space: nowrap; }
.seo-brand span { font-weight: 300; }
.seo-links { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 22px; }
.seo-links a { text-decoration: none; font-size: 11px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; }
.seo-links a:hover, .seo-links a:focus-visible { opacity: .55; }
.seo-hero { padding: 112px 0 86px; background: var(--stone); border-bottom: 1px solid var(--line); }
.seo-kicker { display: block; margin-bottom: 20px; font-size: 11px; font-weight: 700; letter-spacing: .28em; text-transform: uppercase; color: var(--muted); }
.seo-hero h1 { max-width: 880px; margin: 0 0 28px; font-size: clamp(42px, 7vw, 82px); line-height: .98; letter-spacing: -.055em; }
.seo-lead { max-width: 760px; margin: 0; font-size: clamp(18px, 2.2vw, 24px); line-height: 1.6; color: var(--muted); font-weight: 300; }
.seo-section { padding: 88px 0; }
.seo-section--white { background: #fff; }
.seo-section h2 { margin: 0 0 18px; font-size: clamp(28px, 4vw, 48px); letter-spacing: -.045em; line-height: 1.1; }
.seo-section p { max-width: 780px; font-size: 17px; line-height: 1.75; color: var(--muted); }
.seo-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.seo-card { padding: 40px 40px 44px 0; border-bottom: 1px solid var(--line); }
.seo-card:nth-child(even) { padding-left: 40px; border-left: 1px solid var(--line); }
.seo-card h2, .seo-card h3 { margin: 0 0 14px; font-size: 24px; line-height: 1.25; letter-spacing: -.03em; }
.seo-card p { margin: 0; font-size: 16px; line-height: 1.7; color: var(--muted); }
.seo-cost { margin: 0 0 18px; font-size: clamp(28px, 4vw, 42px); font-weight: 800; letter-spacing: -.05em; }
.seo-note { padding: 24px 28px; border-left: 3px solid var(--ink); background: var(--stone); color: var(--muted); line-height: 1.65; }
.seo-cta { padding: 68px; background: var(--ink); color: #fff; display: grid; grid-template-columns: 1fr auto; gap: 36px; align-items: center; }
.seo-cta h2 { margin: 0 0 12px; color: #fff; }
.seo-cta p { margin: 0; color: rgba(255,255,255,.65); }
.seo-button { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 0 28px; border: 1px solid currentColor; text-decoration: none; font-size: 11px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; white-space: nowrap; }
.seo-button--light { background: #fff; color: var(--ink); border-color: #fff; }
.seo-related { display: flex; flex-wrap: wrap; gap: 14px 28px; padding-top: 28px; border-top: 1px solid var(--line); }
.seo-related a { font-size: 13px; font-weight: 700; text-underline-offset: 5px; }
.seo-footer { padding: 42px 0; border-top: 1px solid var(--line); background: #fff; color: var(--muted); font-size: 12px; }
.estimator { margin-top: 42px; padding: 38px; background: #fff; border: 1px solid var(--line); }
.estimator-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 20px; }
.estimator label { display: block; margin-bottom: 9px; font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.estimator select { width: 100%; min-height: 52px; padding: 0 14px; border: 1px solid var(--line); background: var(--paper); color: var(--ink); font: inherit; }
.estimator-output { margin-top: 28px; padding-top: 28px; border-top: 1px solid var(--line); }
.estimator-output strong { display: block; font-size: clamp(30px, 5vw, 54px); letter-spacing: -.05em; }
.estimator-output span { color: var(--muted); line-height: 1.6; }

@media (max-width: 760px) {
  .seo-nav__inner { padding: 18px 0; align-items: flex-start; }
  .seo-links { gap: 12px 18px; }
  .seo-links a { font-size: 9px; }
  .seo-hero { padding: 78px 0 62px; }
  .seo-section { padding: 64px 0; }
  .seo-grid { grid-template-columns: 1fr; }
  .seo-card, .seo-card:nth-child(even) { padding: 30px 0; border-left: 0; }
  .seo-cta { padding: 42px 28px; grid-template-columns: 1fr; }
  .estimator { padding: 26px 20px; }
  .estimator-grid { grid-template-columns: 1fr; }
}