:root{--brand-600:#0d9488;--brand-700:#0f766e;--ink:#0f172a;--text:#334155;--muted:#64748b;--bg:#ffffff;--alt:#f8fafc;--max:1120px;--r:16px}
*{box-sizing:border-box}html,body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,'Helvetica Neue',Arial,sans-serif;color:var(--text);background:var(--bg)}
a{text-decoration:none;color:var(--brand-700)}a:hover{text-decoration:underline}img{max-width:100%;display:block}
h1,h2,h3{color:var(--ink);letter-spacing:-0.01em;margin:0 0 8px}h1{font-size:clamp(28px,5vw,40px)}h2{font-size:clamp(22px,4vw,28px)}p{line-height:1.7;margin:10px 0}
.container{max-width:var(--max);margin:auto;padding:0 20px}.btn{display:inline-block;padding:10px 16px;border-radius:999px;background:var(--brand-600);color:#fff;border:1px solid transparent}
.btn:hover{background:var(--brand-700);text-decoration:none}.btn.ghost{background:transparent;border-color:#e2e8f0;color:var(--ink)}
.grid2{display:grid;grid-template-columns:1fr;gap:24px}.grid3{display:grid;grid-template-columns:1fr;gap:16px}
.card{border:1px solid #e2e8f0;border-radius:var(--r);padding:16px;background:#fff;box-shadow:0 1px 0 rgba(16,24,40,.02)}
.badge{display:inline-flex;gap:8px;align-items:center;color:var(--muted);font-size:14px}
header.top{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.75);backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid #e2e8f0}
.nav{display:flex;align-items:center;gap:16px}.brand{display:flex;align-items:center;gap:12px}
.brand .logo{height:36px;width:36px;border-radius:12px;background:var(--brand-600);color:#fff;display:grid;place-items:center;font-weight:700}
header .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.nav a{color:#475569}.nav a.active{color:#0f172a;font-weight:600}
.hero{background:linear-gradient(to bottom,#ecfeff,#fff);padding:64px 0}.section{padding:56px 0}.section.alt{background:var(--alt)}
footer.site{border-top:1px solid #e2e8f0;padding:24px 0;color:#64748b}.menu-btn{display:none}
.mobile{display:none;flex-direction:column;padding:10px 20px;border-top:1px solid #e2e8f0;background:#fff}
@media(min-width:860px){.grid2{grid-template-columns:1.2fr .8fr}.grid3{grid-template-columns:repeat(3,1fr)}}
@media(max-width:859px){.menu-btn{display:inline-block;padding:8px 10px;border-radius:10px}nav.nav{display:none}.mobile.show{display:flex}}