:root {
  --bg: #f8fafc; --card: #fff; --border: #e2e8f0; --text: #0f172a;
  --muted: #64748b; --primary: #0f172a; --success: #059669; --danger: #dc2626;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: -apple-system, Segoe UI, Roboto, sans-serif; }
a { color: inherit; text-decoration: none; }
.container { max-width: 1100px; margin: 0 auto; padding: 24px 16px; }

.topbar { background: #fff; border-bottom: 1px solid var(--border); }
.topbar-inner { max-width: 1100px; margin: 0 auto; padding: 12px 16px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.brand { font-weight: 700; }
.topbar nav { display: flex; gap: 8px; flex-wrap: wrap; font-size: 14px; }
.topbar nav a { padding: 6px 10px; border-radius: 6px; border: 1px solid var(--border); }
.topbar nav a:hover { background: #f1f5f9; }

.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 20px; margin-bottom: 16px; }
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 700px) { .grid-2, .grid-4 { grid-template-columns: 1fr; } }

.btn { display: inline-block; padding: 8px 14px; border-radius: 6px; border: 1px solid var(--border); background: #fff; cursor: pointer; font-size: 14px; }
.btn:hover { background: #f1f5f9; }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { opacity: .9; }
.btn-danger { color: var(--danger); border-color: #fecaca; }

label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 4px; color: #334155; }
input, select, textarea { width: 100%; padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px; font-family: inherit; }
.field { margin-bottom: 14px; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; background: #f8fafc; }
.table-wrap { overflow-x: auto; background: #fff; border: 1px solid var(--border); border-radius: 12px; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; background: #f1f5f9; color: #475569; }
.badge-success { background: #ecfdf5; color: var(--success); }
.badge-danger { background: #fef2f2; color: var(--danger); }

.alert { padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; }
.alert-error { background: #fef2f2; color: #b91c1c; }
.alert-success { background: #ecfdf5; color: #047857; }

.login-wrap { display: flex; min-height: 100vh; align-items: center; justify-content: center; }
.login-card { width: 100%; max-width: 380px; }

.text-muted { color: var(--muted); }
.mb-0 { margin-bottom: 0; }
.flex-between { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; }