:root{--bg:#0f172a;--card:#111827;--fg:#f8fafc;--muted:#94a3b8;--brand:#4f46e5;--ok:#10b981;--err:#ef4444;}
*{box-sizing:border-box} html,body{margin:0;padding:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--fg);background:linear-gradient(135deg,#312e81,#0f172a) fixed}
.container{max-width:1100px;margin:0 auto;padding:24px}
.center{min-height:100vh;display:flex;align-items:center;justify-content:center}
.card{background:rgba(17,24,39,.7);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.08);border-radius:18px;padding:28px;box-shadow:0 12px 40px rgba(0,0,0,.35)}
h1,h2,h3{margin:0 0 12px 0}
p{color:var(--fg);opacity:.9}
a.btn,button.btn{display:inline-block;padding:12px 16px;border-radius:12px;text-decoration:none;border:0;font-weight:700;cursor:pointer}
.btn-primary{background:#fff;color:#111827}
.btn-secondary{background:var(--brand);color:#fff}
.btn-ok{background:var(--ok);color:#06221b}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.2)}
.row{display:flex;gap:16px;flex-wrap:wrap}
.col{flex:1 1 280px}
.input{width:100%;padding:12px 14px;border-radius:10px;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);color:#fff}
.label{display:block;margin:8px 0 6px 2px;color:#cbd5e1}
.alert{padding:12px;border-radius:10px;margin:10px 0}
.alert.err{background:rgba(239,68,68,.15);border:1px solid rgba(239,68,68,.4);color:#fecaca}
.alert.ok{background:rgba(16,185,129,.15);border:1px solid rgba(16,185,129,.4);color:#bbf7d0}
.table{width:100%;border-collapse:collapse}
.table th,.table td{padding:10px;border-bottom:1px solid rgba(255,255,255,.08)}
.kpi{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:16px}
.kpi h3{font-size:14px;color:#cbd5e1;margin:0 0 6px}
.kpi .v{font-size:22px;font-weight:800}
.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
select,option{color:#111}
@media(max-width:640px){.card{padding:22px}}