:root{--bg:#f3f6fb;--card:#ffffff;--accent:#4e73df;--muted:#6b7280}
html,body{height:100%;margin:0;font-family:Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial}
body{display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#eef2ff 0%, #f8fafc 100%);padding:32px}
.card{width:100%;max-width:420px;background:var(--card);border-radius:12px;box-shadow:0 8px 30px rgba(24,39,75,0.08);padding:28px;box-sizing:border-box}
h1{margin:0 0 12px;font-size:20px;color:#0f172a}
p.lead{margin:0 0 18px;color:var(--muted);font-size:14px}
label{display:block;font-size:13px;color:#111827;margin-bottom:6px}
.input{width:100%;padding:10px 12px;border-radius:8px;border:1px solid #e6edf3;background:#fbfdff;box-sizing:border-box;font-size:14px}
.form-row{margin-bottom:14px}
.btn{display:inline-block;width:100%;padding:10px 12px;border-radius:10px;background:var(--accent);color:#fff;border:0;font-weight:600;cursor:pointer;font-size:15px}
.hint{font-size:12px;color:#94a3b8;margin-top:12px;text-align:center}
.brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.brand .logo{width:44px;height:44px;border-radius:8px;background:linear-gradient(135deg,#6b46c1,#3b82f6);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700}
@media (max-width:480px){body{padding:16px}}