:root {
  color-scheme: dark;
  --bg: #090c14;
  --panel: #111827;
  --panel-2: #172033;
  --line: #293247;
  --text: #f4f7fb;
  --muted: #9aa6bc;
  --soft: #657189;
  --cyan: #67e8f9;
  --pink: #f472b6;
  --green: #34d399;
  --orange: #fb923c;
  --red: #fb7185;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .55; }
a { color: var(--cyan); }

.shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 244px minmax(0, 1fr);
}

.sidebar {
  border-right: 1px solid var(--line);
  background: #0c111d;
  padding: 22px 18px;
}

.brand {
  display: grid;
  gap: 4px;
  margin-bottom: 28px;
}

.brand strong {
  font-size: 17px;
  letter-spacing: .08em;
}

.brand span, .muted { color: var(--muted); }

.nav {
  display: grid;
  gap: 8px;
}

.nav button {
  width: 100%;
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  text-align: left;
  border-radius: 8px;
  padding: 10px 12px;
}

.nav button.active {
  background: var(--panel-2);
  border-color: var(--line);
  color: var(--text);
}

.main {
  min-width: 0;
  padding: 24px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}

.topbar h1 {
  margin: 0;
  font-size: 24px;
}

.role {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}

.role::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 14px;
}

.span-4 { grid-column: span 4; }
.span-6 { grid-column: span 6; }
.span-8 { grid-column: span 8; }
.span-12 { grid-column: span 12; }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}

.panel h2, .panel h3 {
  margin: 0 0 12px;
  font-size: 16px;
}

.metric {
  font-size: 30px;
  font-weight: 800;
  line-height: 1;
}

.field {
  display: grid;
  gap: 7px;
  margin-bottom: 12px;
}

.field span {
  color: var(--muted);
  font-size: 13px;
}

input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0b1220;
  color: var(--text);
  padding: 11px 12px;
  outline: none;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(103, 232, 249, .14);
}

.btn {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 13px;
  color: var(--text);
  background: var(--panel-2);
}

.btn.primary {
  border-color: transparent;
  background: linear-gradient(135deg, #0891b2, #be185d);
}

.btn.danger {
  border-color: rgba(251, 113, 133, .5);
  color: #fecdd3;
  background: rgba(127, 29, 29, .35);
}

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.auth-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.auth-card {
  width: min(440px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
}

.auth-card h1 {
  margin: 0 0 8px;
  font-size: 24px;
}

.notice {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 11px 12px;
  margin: 12px 0;
  color: var(--muted);
  background: rgba(255,255,255,.03);
}

.notice.error { border-color: rgba(251,113,133,.45); color: #fecdd3; }
.notice.success { border-color: rgba(52,211,153,.45); color: #bbf7d0; }
.notice.warning { border-color: rgba(251,146,60,.5); color: #fed7aa; }

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

th, td {
  border-bottom: 1px solid var(--line);
  padding: 10px 8px;
  text-align: left;
  vertical-align: top;
}

th { color: var(--muted); font-weight: 600; }

.badge {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 8px;
  color: var(--muted);
  font-size: 12px;
}

.badge.good { border-color: rgba(52,211,153,.45); color: #bbf7d0; }
.badge.warn { border-color: rgba(251,146,60,.5); color: #fed7aa; }

@media (max-width: 820px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { border-right: 0; border-bottom: 1px solid var(--line); }
  .nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .span-4, .span-6, .span-8 { grid-column: span 12; }
  .main { padding: 16px; }
}