:root {
  --bg-main: #0b1120;
  --bg-card: #151f32;
  --bg-input: #0f172a;
  --border: #28354e;
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --accent: #38bdf8;
  --accent-hover: #0ea5e9;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 255px;
  background-color: #090e1a;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.brand {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border);
}

.brand h1 {
  font-size: 17px;
  margin: 0;
  color: #fff;
  letter-spacing: 0.3px;
}

.brand .sub {
  font-size: 11px;
  color: var(--accent);
  margin-top: 4px;
  font-family: Consolas, monospace;
}

.nav-links {
  list-style: none;
  padding: 12px 10px;
  margin: 0;
  flex: 1;
}

.nav-links li {
  margin-bottom: 4px;
}

.nav-links a {
  display: flex;
  align-items: center;
  padding: 10px 14px;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: 7px;
  font-size: 13.5px;
  font-weight: 500;
  transition: all 0.15s;
}

.nav-links a:hover,
.nav-links a.active {
  background-color: var(--bg-card);
  color: #fff;
}

.sidebar-footer {
  padding: 14px 16px;
  border-top: 1px solid var(--border);
  font-size: 11.5px;
  color: var(--text-muted);
}

.main-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.topbar {
  height: 56px;
  border-bottom: 1px solid var(--border);
  background-color: rgba(15, 23, 42, 0.85);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
}

.topbar .badge-local {
  background: rgba(16, 185, 129, 0.15);
  color: #6ee7b7;
  border: 1px solid rgba(16, 185, 129, 0.35);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11.5px;
  font-family: Consolas, monospace;
}

.content {
  padding: 28px;
  max-width: 1440px;
  width: 100%;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
}

.page-header h2 {
  margin: 0;
  font-size: 22px;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 20px;
}

.card h3 {
  margin-top: 0;
  margin-bottom: 14px;
  font-size: 16px;
  color: #f8fafc;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(185px, 1fr));
  gap: 14px;
  margin-bottom: 22px;
}

.stat-box {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 15px 16px;
}

.stat-box .label {
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
}

.stat-box .value {
  font-size: 24px;
  font-weight: 700;
  color: var(--accent);
  margin-top: 6px;
}

.stat-box .subtext {
  font-size: 11.5px;
  color: var(--text-muted);
  margin-top: 4px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th, td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: middle;
}

th {
  color: var(--text-muted);
  font-weight: 600;
  background-color: rgba(15, 23, 42, 0.55);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
}

.form-group {
  margin-bottom: 14px;
}

.form-group label {
  display: block;
  font-size: 12.5px;
  color: var(--text-muted);
  margin-bottom: 5px;
  font-weight: 600;
}

input[type="text"],
input[type="email"],
input[type="number"],
input[type="password"],
input[type="datetime-local"],
select,
textarea {
  width: 100%;
  padding: 8px 11px;
  background-color: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-main);
  font-size: 13px;
  font-family: inherit;
}

textarea {
  min-height: 90px;
  font-family: Consolas, monospace;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 6px;
  border: 1px solid transparent;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  background-color: var(--accent);
  color: #082f49;
}

.btn:hover {
  background-color: var(--accent-hover);
}

.btn-secondary {
  background-color: #1e293b;
  color: var(--text-main);
  border-color: var(--border);
}

.btn-secondary:hover {
  background-color: #334155;
}

.btn-success {
  background-color: var(--success);
  color: #022c22;
}

.btn-warning {
  background-color: var(--warning);
  color: #451a03;
}

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

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
}

.badge-ok { background: rgba(16, 185, 129, 0.2); color: #6ee7b7; }
.badge-warn { background: rgba(245, 158, 11, 0.2); color: #fcd34d; }
.badge-err { background: rgba(239, 68, 68, 0.2); color: #fca5a5; }
.badge-info { background: rgba(56, 189, 248, 0.2); color: #7dd3fc; }

.alert {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 18px;
  font-size: 13.5px;
  border: 1px solid var(--border);
}

.alert-info { background: rgba(56, 189, 248, 0.12); border-color: rgba(56, 189, 248, 0.35); color: #bae6fd; }
.alert-success { background: rgba(16, 185, 129, 0.12); border-color: rgba(16, 185, 129, 0.35); color: #a7f3d0; }
.alert-warning { background: rgba(245, 158, 11, 0.12); border-color: rgba(245, 158, 11, 0.35); color: #fde68a; }
.alert-danger { background: rgba(239, 68, 68, 0.12); border-color: rgba(239, 68, 68, 0.35); color: #fecaca; }

code, pre {
  font-family: Consolas, 'Courier New', monospace;
  font-size: 12.5px;
}

pre {
  background: #090e1a;
  border: 1px solid var(--border);
  padding: 12px;
  border-radius: 6px;
  overflow-x: auto;
}