/* Minimal, clean styling */
:root { --bg: #0f172a; --card: #111827; --muted: #94a3b8; --text: #f8fafc; --accent: #22c55e; --danger: #ef4444; --border: #1f2937; }

* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; color: var(--text); background: linear-gradient(120deg, #0b1020, #090f1f 40%, #0b1020 80%) fixed; }
a { color: #93c5fd; text-decoration: none; }
a.btn, .btn, .btn-primary, .btn-logout { display: inline-block; padding: 8px 12px; border-radius: 6px; border: 1px solid var(--border); background: #0b1220; color: var(--text); }
.btn-primary { background: var(--accent); color: #052e12; border-color: #10b981; font-weight: 600; }
.btn-logout { background: #172554; color: #cbd5e1; }

.container { max-width: 1100px; margin: 24px auto; padding: 0 16px; }

.topbar { display:flex; gap: 16px; align-items:center; justify-content: space-between; padding: 12px 16px; border-bottom: 1px solid var(--border); background: rgba(0,0,0,0.35); position: sticky; top:0; backdrop-filter: blur(8px); }
.brand { font-weight: 700; letter-spacing: .3px; }
.menu a { margin-right: 12px; }
.user { display:flex; gap: 12px; align-items:center; }

.card { background: rgba(17,24,39,0.65); border: 1px solid var(--border); border-radius: 10px; padding: 16px; margin-bottom: 16px; }
.card-header { display:flex; align-items:center; justify-content: space-between; }

.table { width: 100%; border-collapse: collapse; }
.table th, .table td { border-bottom: 1px solid var(--border); padding: 8px; text-align: left; }
.table th { color: var(--muted); font-weight: 600; }
.table tr:hover td { background: rgba(255,255,255,0.03); }

.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.metric { text-align:center; }
.metric-value { font-size: 36px; font-weight: 700; }
.metric-label { color: var(--muted); }

label { display:block; margin: 8px 0 4px; color: var(--muted); }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=date], input[type=datetime-local], select, textarea {
  width: 100%; padding: 10px; border-radius: 8px; border: 1px solid var(--border); background: #0b1220; color: var(--text);
}
textarea { resize: vertical; }
.form-actions { margin-top: 12px; display:flex; gap: 8px; }

.alert { padding: 10px; border-radius: 6px; margin-bottom: 12px; }
.alert-error { background: rgba(239,68,68,0.12); border: 1px solid #7f1d1d; }

.muted { color: var(--muted); }

.list { margin: 0; padding-left: 18px; }
.list li { margin-bottom: 6px; }

/* Auth */
.auth-body { display:flex; align-items:center; justify-content:center; min-height: 100vh; }
.auth-card { width: 360px; background: rgba(17,24,39,0.65); border: 1px solid var(--border); border-radius: 10px; padding: 24px; }
.auth-card h1 { margin-top: 0; }