:root {
  --bg: #0f0a1a;
  --bg-2: #1a1230;
  --card: #24183f;
  --card-2: #2e214f;
  --line: rgba(255, 255, 255, 0.08);
  --text: #f4efff;
  --muted: #b9aed4;
  --accent: #8b5cf6;
  --accent-2: #c084fc;
  --ok: #34d399;
  --warn: #fbbf24;
  --danger: #f87171;
  --radius: 14px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(139, 92, 246, 0.28), transparent 60%),
    radial-gradient(900px 500px at 100% 0%, rgba(192, 132, 252, 0.18), transparent 55%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
}

a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}
.login-card {
  width: 100%;
  max-width: 420px;
  background: linear-gradient(180deg, var(--card), var(--bg-2));
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 32px 28px;
  box-shadow: var(--shadow);
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}
.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), #6d28d9);
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 18px;
}
.brand h1 {
  margin: 0;
  font-size: 1.25rem;
}
.subtitle {
  color: var(--muted);
  margin: 0 0 24px;
  font-size: 0.95rem;
}

.layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}
.sidebar {
  background: rgba(26, 18, 48, 0.92);
  border-right: 1px solid var(--line);
  padding: 20px 14px;
  position: sticky;
  top: 0;
  height: 100vh;
}
.sidebar .brand { margin: 4px 8px 24px; }
.nav a {
  display: block;
  padding: 11px 14px;
  border-radius: 10px;
  color: var(--muted);
  margin-bottom: 4px;
  text-decoration: none;
}
.nav a:hover, .nav a.active {
  background: rgba(139, 92, 246, 0.18);
  color: var(--text);
  text-decoration: none;
}
.nav .section-label {
  color: #7c7199;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 16px 14px 6px;
}
.sidebar-foot {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 18px;
  color: var(--muted);
  font-size: 0.85rem;
}

.main {
  padding: 28px;
}
.page-head {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
}
.page-head h2 {
  margin: 0;
  font-size: 1.55rem;
}
.page-head p {
  margin: 4px 0 0;
  color: var(--muted);
}

.grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  margin-bottom: 22px;
}
.stat {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}
.stat .label { color: var(--muted); font-size: 0.85rem; }
.stat .value { font-size: 1.8rem; font-weight: 700; margin-top: 6px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
  margin-bottom: 18px;
}
.card h3 { margin: 0 0 14px; font-size: 1.05rem; }

.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
th { color: var(--muted); font-weight: 600; font-size: 0.8rem; }
tr:hover td { background: rgba(255,255,255,0.02); }

.form-row {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
}
.form-row label {
  font-size: 0.88rem;
  color: var(--muted);
}
input[type="text"],
input[type="password"],
input[type="number"],
input[type="search"],
select,
textarea {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 10px;
  padding: 11px 12px;
  font: inherit;
}
textarea { min-height: 110px; resize: vertical; }
input:focus, select:focus, textarea:focus {
  outline: 2px solid rgba(139, 92, 246, 0.45);
  border-color: transparent;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: 10px;
  padding: 10px 16px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), #6d28d9);
}
.btn:hover { filter: brightness(1.08); text-decoration: none; }
.btn-secondary {
  background: var(--card-2);
  border: 1px solid var(--line);
  color: var(--text);
}
.btn-danger { background: #b91c1c; }
.btn-sm { padding: 6px 10px; font-size: 0.82rem; border-radius: 8px; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; }

.alert {
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 16px;
  border: 1px solid var(--line);
}
.alert-ok { background: rgba(52, 211, 153, 0.12); color: #a7f3d0; }
.alert-error { background: rgba(248, 113, 113, 0.12); color: #fecaca; }
.alert-warn { background: rgba(251, 191, 36, 0.12); color: #fde68a; }
.alert-info { background: rgba(139, 92, 246, 0.14); color: #ddd6fe; }

.badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(255,255,255,0.08);
}
.badge-ok { background: rgba(52, 211, 153, 0.18); color: #6ee7b7; }
.badge-off { background: rgba(248, 113, 113, 0.15); color: #fca5a5; }
.badge-guest { background: rgba(251, 191, 36, 0.15); color: #fcd34d; }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
  align-items: center;
}
.toolbar .grow { flex: 1; min-width: 180px; }

.muted { color: var(--muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.85rem; }
.stack-2 { display: grid; gap: 16px; grid-template-columns: 1fr 1fr; }

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar {
    position: relative;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--line);
  }
  .sidebar-foot { position: static; margin-top: 18px; }
  .stack-2 { grid-template-columns: 1fr; }
  .main { padding: 18px 14px; }
}