*{box-sizing:border-box;margin:0;padding:0}
body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Arial,sans-serif;color:#1a1a1a;background:#f7f8fb;line-height:1.5}
.container{max-width:1100px;margin:0 auto;padding:0 20px}
.header{background:#fff;border-bottom:1px solid #e5e7eb;position:sticky;top:0}
.header .container{display:flex;align-items:center;justify-content:space-between;padding:14px 20px}
.logo{font-weight:700;font-size:20px;text-decoration:none;color:#0f172a}
nav a{margin-left:18px;text-decoration:none;color:#334155}
.btn{display:inline-block;padding:10px 16px;border-radius:8px;text-decoration:none;border:1px solid transparent;cursor:pointer;font-weight:600}
.btn-primary{background:#2563eb;color:#fff}
.btn-primary:hover{filter:brightness(.95)}
.btn-outline{border-color:#cbd5e1;color:#334155;background:#fff}
.btn-outline:hover{background:#f1f5f9}
.hero{background:linear-gradient(135deg,#eff6ff,#e0f2fe);padding:80px 0;text-align:center}
.hero h1{font-size:36px;margin-bottom:12px}
.hero p{font-size:18px;color:#475569;margin-bottom:24px}
.hero-actions{display:flex;gap:12px;justify-content:center}
.section{padding:60px 0}
h1{font-size:32px;margin-bottom:16px}
h2{font-size:26px;margin-bottom:12px}
h3{font-size:20px;margin-bottom:8px}
.card{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:20px;box-shadow:0 1px 2px rgba(0,0,0,.04)}
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;margin-top:24px}
.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px;margin-top:24px}
.features-preview .note{text-align:center;margin-top:20px;color:#64748b}
.pricing .price{font-size:28px;font-weight:700;margin:12px 0}
.pricing ul{list-style:none;padding:0;margin:16px 0}
.pricing li{padding:6px 0;border-bottom:1px dashed #e5e7eb}
.pricing.featured{border-color:#2563eb;box-shadow:0 4px 12px rgba(37,99,235,.15)}
.login{max-width:480px;margin:80px auto}
.login-card{padding:32px}
form label{display:block;margin-bottom:14px;font-weight:600}
input{width:100%;padding:10px 12px;border:1px solid #cbd5e1;border-radius:8px;margin-top:6px}
.error{color:#dc2626;margin-top:10px}
.note{color:#64748b;font-size:14px;margin-top:12px}
.toolbar{display:flex;gap:12px;margin:20px 0}
.grid-files{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:16px}
.file-card{background:#fff;border:1px solid #e5e7eb;border-radius:10px;padding:16px;text-align:center}
.file-card .icon{font-size:36px;margin-bottom:8px}
.footer{border-top:1px solid #e5e7eb;background:#fff;margin-top:40px}
.footer .container{padding:20px;font-size:14px;color:#64748b}