:root {
  --bg: #0f1419;
  --surface: #1a212b;
  --surface-2: #232c38;
  --border: #2f3a48;
  --text: #e6e9ee;
  --muted: #8b96a5;
  --accent: #5b9dff;
  --success: #3fb97a;
  --warning: #e0a93b;
  --danger: #e5584f;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.5 system-ui, sans-serif; }
a { color: var(--accent); }

.app { display: flex; min-height: 100vh; }
.sidebar { width: 230px; flex-shrink: 0; background: var(--surface); border-right: 1px solid var(--border); padding: 1rem 0; display: flex; flex-direction: column; }
.sidebar .brand { padding: 0 1.2rem 1rem; font-weight: 700; font-size: 1.1rem; }
.sidebar nav a { display: block; padding: .55rem 1.2rem; color: var(--text); text-decoration: none; border-left: 3px solid transparent; }
.sidebar nav a:hover { background: var(--surface-2); }
.sidebar nav a.active { border-left-color: var(--accent); background: var(--surface-2); }
.sidebar nav a.disabled { color: var(--muted); pointer-events: none; }
.sidebar .user { margin-top: auto; padding: 1rem 1.2rem 0; border-top: 1px solid var(--border); color: var(--muted); font-size: .85rem; }
.content { flex: 1; padding: 1.5rem 2rem; min-width: 0; }

.page-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.page-header h1 { margin: 0; font-size: 1.5rem; }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1rem; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 1rem 1.2rem; }
.card h2 { margin: 0 0 .4rem; font-size: 1rem; }
.card p { margin: 0; color: var(--muted); font-size: .9rem; }
.card.off { opacity: .55; }

.badge-success, .badge-warning, .badge-danger { display: inline-block; padding: .1rem .55rem; border-radius: 999px; font-size: .78rem; }
.badge-success { background: rgba(63,185,122,.18); color: var(--success); }
.badge-warning { background: rgba(224,169,59,.18); color: var(--warning); }
.badge-danger  { background: rgba(229,88,79,.18);  color: var(--danger); }

.btn { display: inline-block; padding: .5rem 1rem; background: var(--accent); color: #fff; border: 0; border-radius: 6px; cursor: pointer; font: inherit; text-decoration: none; }
.btn:hover { filter: brightness(1.1); }
.btn-secondary { background: var(--surface-2); border: 1px solid var(--border); color: var(--text); }

label { display: block; margin: .8rem 0 .25rem; color: var(--muted); font-size: .9rem; }
input[type=text], input[type=password] { width: 100%; padding: .55rem .7rem; background: var(--bg); color: var(--text); border: 1px solid var(--border); border-radius: 6px; font: inherit; }
input:focus { outline: 2px solid var(--accent); outline-offset: 0; }

.alert { padding: .7rem 1rem; border-radius: 6px; margin-bottom: 1rem; }
.alert-danger { background: rgba(229,88,79,.15); border: 1px solid var(--danger); }

.alert-ok { background: rgba(63,185,122,.15); border: 1px solid var(--success); }
.alert code, td code { background: var(--bg); padding: .1rem .4rem; border-radius: 4px; user-select: all; }

table.list { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; }
table.list th, table.list td { padding: .6rem .9rem; text-align: left; border-bottom: 1px solid var(--border); }
table.list th { color: var(--muted); font-weight: 600; font-size: .85rem; }
table.list tr:last-child td { border-bottom: 0; }
.table-wrap { overflow-x: auto; }

select { width: 100%; padding: .55rem .7rem; background: var(--bg); color: var(--text); border: 1px solid var(--border); border-radius: 6px; font: inherit; }
.form-card { max-width: 480px; }
.actions { display: flex; gap: .6rem; margin-top: 1.2rem; flex-wrap: wrap; }
.btn-danger { background: var(--danger); }
.muted { color: var(--muted); }

.login-box { max-width: 380px; margin: 12vh auto 0; }
.login-box .btn { width: 100%; margin-top: 1.2rem; }

@media (max-width: 700px) {
  .app { flex-direction: column; }
  .sidebar { width: auto; }
  .content { padding: 1rem; }
}