:root {
  --topbar-bg: #2d2d2d;
  --topbar-text: #bbb;
  --topbar-active: #fff;
  --accent: #1a8a9a;
  --accent-dark: #147080;
  --content-bg: #1a1a1a;
  --panel-bg: #252525;
  --panel-border: #333;
  --text: #e8e8e8;
  --text-muted: #999;
  --success: #2ecc71;
  --danger: #e74c3c;
  --warning: #f1c40f;
  --font: 'Segoe UI', system-ui, sans-serif;
}

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

body {
  font-family: var(--font);
  font-size: 14px;
  color: var(--text);
  background: var(--content-bg);
  min-height: 100vh;
}

a { color: var(--accent); }

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px 24px 40px;
}

.topbar {
  display: flex;
  align-items: stretch;
  height: 48px;
  background: var(--topbar-bg);
  color: var(--topbar-text);
  border-bottom: 3px solid var(--accent);
  overflow: visible;
  position: relative;
  z-index: 100;
}

.topbar__logo {
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 4px;
  min-width: 160px;
}

.topbar__logo-mark {
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  padding: 2px 6px;
}

.topbar__logo-text {
  color: #fff;
  font-weight: 300;
  font-size: 16px;
  letter-spacing: 2px;
}

.topbar__tabs {
  display: flex;
  align-items: stretch;
  flex: 1;
}

.topbar__tab {
  display: flex;
  align-items: center;
  padding: 0 20px;
  color: var(--topbar-text);
  text-decoration: none;
  font-size: 13px;
}

.topbar__tab:hover { color: var(--topbar-active); background: rgba(255,255,255,0.05); }
.topbar__tab--active { color: var(--topbar-active); background: rgba(255,255,255,0.08); }

.topbar__user {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  font-size: 13px;
}

.topbar__logout button {
  background: none;
  border: none;
  color: var(--topbar-text);
  cursor: pointer;
  font-size: 16px;
}

.role-badge {
  font-size: 11px;
  padding: 2px 6px;
  background: #444;
  border-radius: 3px;
}

h1 { font-size: 22px; font-weight: 600; margin-bottom: 8px; }
h2 { font-size: 16px; margin-bottom: 12px; }

.lead { color: var(--text-muted); margin-bottom: 20px; }

.card {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  padding: 16px 20px;
  margin-bottom: 16px;
}

.card--danger { border-color: #633; }

.btn {
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid var(--panel-border);
  border-radius: 4px;
  background: #333;
  color: var(--text);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  text-decoration: none;
}

.btn:hover { background: #3a3a3a; }
.btn.primary { background: var(--accent); border-color: var(--accent-dark); color: #fff; }
.btn.primary:hover { background: var(--accent-dark); }
.btn.danger { background: #633; border-color: #522; color: #fff; }
.btn.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.link-btn {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font: inherit;
  text-decoration: underline;
}

.link-btn.danger { color: var(--danger); }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 3px;
  font-size: 11px;
  font-weight: 600;
}

.badge.ok { background: #1e4d2b; color: var(--success); }
.badge.muted { background: #333; color: var(--text-muted); }

.text-muted { color: var(--text-muted); }

.field { margin-bottom: 12px; }
.field label { display: block; margin-bottom: 4px; font-size: 12px; color: var(--text-muted); }
.field input, .field select, .field textarea {
  width: 100%;
  max-width: 400px;
  padding: 8px 10px;
  border: 1px solid var(--panel-border);
  border-radius: 4px;
  background: #1a1a1a;
  color: var(--text);
  font: inherit;
}

.form-inline { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; }
.form-inline .field { margin-bottom: 0; }

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th, .data-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--panel-border);
}

.data-table th { color: var(--text-muted); font-weight: 500; font-size: 12px; }
.actions-cell { white-space: nowrap; }
.actions-cell a, .actions-cell .inline-form { margin-right: 12px; }
.inline-form { display: inline; }

.detail-list { display: grid; grid-template-columns: 160px 1fr; gap: 8px 16px; }
.detail-list dt { color: var(--text-muted); }

.messages { list-style: none; margin-bottom: 16px; }
.message { padding: 10px 14px; border-radius: 4px; margin-bottom: 8px; }
.message--success { background: #1e4d2b; }
.message--error { background: #4d1e1e; }

.form-errors { color: var(--danger); margin-bottom: 12px; }

.hidden { display: none !important; }