:root{
  --bg:#ffffff;
  --text:#0b0b0b;
  --muted:#5b5b5b;
  --line:#e8e8e8;
  --card:#f6f6f6;
  --max:1100px;
  --radius:16px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;line-height:1.5}
a{color:inherit;text-decoration:underline;text-underline-offset:3px}
a:hover{opacity:.85}

.container{max-width:var(--max);margin:0 auto;padding:0 20px}

.skip-link{
  position:absolute;left:-999px;top:auto;width:1px;height:1px;overflow:hidden;
}
.skip-link:focus{left:20px;top:20px;width:auto;height:auto;background:#fff;padding:10px;border:1px solid var(--line);border-radius:10px;z-index:10}

.site-header{
  position:sticky;top:0;background:rgba(255,255,255,.9);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0}
.brand{font-weight:800;text-decoration:none}
.brand-mark{letter-spacing:.08em}
.nav{display:flex;gap:14px;flex-wrap:wrap}
.nav a{text-decoration:none;border-bottom:1px solid transparent}
.nav a:hover{border-bottom-color:var(--text)}

.site-main{padding:34px 0}

.hero{
  padding:28px 0 10px 0;
}
.hero h1{font-size:clamp(28px,4vw,44px);line-height:1.1;margin:0 0 10px 0}
.hero p{margin:0 0 18px 0;color:var(--muted);max-width:70ch}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:10px 0 0 0}
.btn{
  display:inline-block;padding:10px 14px;border-radius:999px;
  border:1px solid var(--text);
  text-decoration:none;
}
.btn.primary{background:var(--text);color:var(--bg)}

.section{padding:26px 0;border-top:1px solid var(--line);margin-top:26px}
.section h2{margin:0 0 14px 0;font-size:18px;letter-spacing:.02em}
.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:14px}

.card{
  border:1px solid var(--line);background:var(--card);
  border-radius:var(--radius);padding:16px;
}
.card h3{margin:0 0 6px 0;font-size:16px}
.card p{margin:0;color:var(--muted)}
.card a{text-decoration:none}
.card a:hover{text-decoration:underline}

.col-6{grid-column:span 6}
.col-4{grid-column:span 4}
.col-12{grid-column:span 12}

@media (max-width:900px){
  .col-6,.col-4{grid-column:span 12}
}

.site-footer{
  border-top:1px solid var(--line);
  padding:26px 0;
}
.footer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.footer-title{font-weight:700;margin-bottom:8px}
.footer-text{color:var(--muted)}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr}
}