:root {
  --bg: #0b0c0f;
  --panel: #12151a;
  --border: #232733;
  --text: #e6e8ee;
  --muted: #a8adbb;
  --primary: #4aa6ff;
  --danger: #ff6174;
  --ok: #40d589;
  --radius: 12px;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body { font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif; background: var(--bg); color: var(--text); }

.app-header { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; background: rgba(11,12,15,0.8); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.brand .logo { font-size: 20px; }
.brand .title { letter-spacing: .4px; }

.side-nav { position: sticky; top: 52px; display: flex; gap: 8px; overflow: auto; padding: 10px 12px; border-bottom: 1px solid var(--border); background: var(--panel); }
.side-nav .nav-link { color: var(--text); text-decoration: none; padding: 8px 12px; border: 1px solid var(--border); border-radius: 999px; font-size: 14px; white-space: nowrap; }
.side-nav .nav-link:hover { border-color: var(--primary); }
.side-nav .nav-auth { margin-left: auto; }

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

h1 { font-size: 20px; margin: 12px 0 16px; }
h3 { margin: 8px 0; }
.muted { color: var(--muted); font-size: 12px; }

.cards { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; }
@media (min-width: 720px) { .cards { grid-template-columns: repeat(3, minmax(0,1fr)); } }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; }
.card .label { color: var(--muted); font-size: 12px; }
.card .value { font-size: 20px; font-weight: 700; margin-top: 6px; }

.btn { background: transparent; color: var(--text); border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; cursor: pointer; }
.btn:hover { border-color: var(--primary); }
.btn.primary { background: linear-gradient(180deg, #4aa6ff, #3b79ff); border-color: rgba(0,0,0,0); color: white; }
.btn.icon { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 10px; }
.btn.danger { border-color: #6a1f28; background: #2a0e12; color: #ffccd2; }

.form { display: grid; gap: 10px; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px; }
.form.grid { grid-template-columns: 1fr; }
@media (min-width: 720px) { .form.grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.form .full { grid-column: 1 / -1; }
.form label { display: grid; gap: 6px; font-size: 12px; color: var(--muted); }
.form input, .form select, .form textarea { width: 100%; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--border); background: #0e1118; color: var(--text); }
.form .actions { display: flex; gap: 8px; align-items: center; }
.form-inline { grid-template-columns: 1fr 1fr auto auto; }

.table-wrap { overflow: auto; margin-top: 10px; border-radius: var(--radius); border: 1px solid var(--border); }
.table { width: 100%; border-collapse: collapse; min-width: 640px; }
.table th, .table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 14px; }
.table thead th { position: sticky; top: 0; background: #0e1118; z-index: 1; }
.table .row-actions { display: flex; gap: 6px; }

.auth { max-width: 420px; margin: 0 auto; }

.settings { display: grid; gap: 12px; }
.settings .group { background: var(--panel); border: 1px solid var(--border); padding: 12px; border-radius: var(--radius); }

.hidden { display: none !important; }