:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --surface2: #334155;
  --border: #475569;
  --text: #f1f5f9;
  --muted: #94a3b8;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --success: #22c55e;
  --danger: #ef4444;
  --warning: #f59e0b;
  --radius: 8px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}

.hidden { display: none !important; }

/* Login */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  width: 100%;
  max-width: 400px;
}

.login-card h1 {
  font-size: 1.25rem;
  margin-bottom: 0.25rem;
}

.login-card p {
  color: var(--muted);
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
}

/* Layout */
.app-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.app-header h1 { font-size: 1.125rem; font-weight: 600; }

.user-info {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--muted);
}

main { padding: 1.5rem; max-width: 1200px; margin: 0 auto; }

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.toolbar h2 { font-size: 1rem; font-weight: 600; }

/* Form */
label {
  display: block;
  font-size: 0.8125rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="url"] {
  width: 100%;
  padding: 0.6rem 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.9375rem;
  margin-bottom: 1rem;
}

input:focus {
  outline: none;
  border-color: var(--primary);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0 1rem;
}

.check-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  font-size: 0.875rem;
}

.check-row input { width: auto; margin: 0; accent-color: var(--primary); }

/* Buttons */
.btn {
  padding: 0.55rem 1rem;
  border: none;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--surface2); color: var(--text); }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { opacity: 0.9; }

.btn-sm { padding: 0.35rem 0.65rem; font-size: 0.8125rem; }

.btn-group { display: flex; gap: 0.5rem; flex-wrap: wrap; }

/* Table */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

th, td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  background: var(--surface2);
  color: var(--muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,0.02); }

/* Badges */
.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-on { background: rgba(34,197,94,0.2); color: var(--success); }
.badge-off { background: rgba(148,163,184,0.2); color: var(--muted); }

/* Panel */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.panel h3 {
  font-size: 0.9375rem;
  margin-bottom: 1rem;
}

/* Toast / alert */
.alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-size: 0.875rem;
}

.alert-error { background: rgba(239,68,68,0.15); border: 1px solid var(--danger); color: #fca5a5; }
.alert-success { background: rgba(34,197,94,0.15); border: 1px solid var(--success); color: #86efac; }
.alert-info { background: rgba(59,130,246,0.15); border: 1px solid var(--primary); color: #93c5fd; }

.loading { color: var(--muted); font-size: 0.875rem; padding: 2rem; text-align: center; }

code { font-size: 0.8125rem; background: var(--bg); padding: 0.1rem 0.35rem; border-radius: 4px; }

@media (max-width: 640px) {
  th:nth-child(4), td:nth-child(4),
  th:nth-child(5), td:nth-child(5) { display: none; }
}