:root{--bg:#f6f7f9;--fg:#1f2933;--accent:#2563eb;--muted:#6b7280}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--fg);line-height:1.6}
header{background:#fff;border-bottom:1px solid #e5e7eb}
nav{max-width:960px;margin:0 auto;padding:1rem;display:flex;gap:1.5rem;align-items:center}
nav .brand{font-weight:700;margin-right:auto;display:flex;align-items:center;gap:.5rem;color:var(--fg);text-decoration:none}
nav a{color:var(--muted);text-decoration:none}
nav a:hover{color:var(--accent)}
main{max-width:960px;margin:0 auto;padding:3rem 1rem}
.hero h1{font-size:2.4rem;margin:0 0 .5rem}
.hero p{font-size:1.15rem;color:var(--muted);max-width:640px}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:.7rem 1.4rem;border-radius:8px;text-decoration:none;margin-top:1rem}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;margin-top:2.5rem}
.card{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:1.5rem}
.card h3{margin-top:0}
footer{max-width:960px;margin:0 auto;padding:2rem 1rem;color:var(--muted);font-size:.9rem;border-top:1px solid #e5e7eb}