:root {
  --bg: #0f172a;
  --panel: #111827;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --primary: #10b981;
  --primary-dark: #0ea472;
  --border: #374151;
}

* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, "Noto Sans", "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji"; background: var(--bg); color: var(--text); }

.navbar { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; background: var(--panel); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 10; }
.brand { font-weight: 600; letter-spacing: 0.2px; }
.nav { display: flex; align-items: center; gap: 8px; }
.nav a { color: var(--text); text-decoration: none; padding: 8px 10px; border-radius: 6px; }
.nav a.active { background: #1f2937; }
.divider { width: 1px; height: 20px; background: var(--border); margin: 0 8px; }
.muted { color: var(--muted); font-size: 0.9em; }
.role-select { display: flex; align-items: center; gap: 8px; }
.role-select select { background: #1f2937; color: var(--text); border: 1px solid var(--border); border-radius: 6px; padding: 6px 8px; }

.container { max-width: 1100px; margin: 24px auto; padding: 0 16px; }
.section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.btn { background: #1f2937; color: var(--text); border: 1px solid var(--border); border-radius: 6px; padding: 8px 12px; cursor: pointer; }
.btn.primary { background: var(--primary); border-color: var(--primary-dark); color: #0b0f0f; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

.card { background: #0b1220; border: 1px solid var(--border); border-radius: 8px; padding: 12px; margin-bottom: 16px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.form-grid label { display: flex; flex-direction: column; gap: 6px; font-size: 0.92em; }
input, textarea, select { background: #111827; border: 1px solid var(--border); color: var(--text); border-radius: 6px; padding: 8px; }
textarea { min-height: 80px; }
.actions { display: flex; gap: 8px; margin-top: 8px; }

.table-wrap { overflow-x: auto; background: #0b1220; border: 1px solid var(--border); border-radius: 8px; }
table { width: 100%; border-collapse: collapse; }
thead tr { background: #111827; }
th, td { padding: 10px; border-bottom: 1px solid var(--border); text-align: left; }
tr.selected { outline: 2px solid var(--primary); }

.message { margin-top: 12px; padding: 10px; border-radius: 8px; }
.message.error { background: #3f1d2b; border: 1px solid #b91c1c; }
.message.success { background: #102a1a; border: 1px solid #10b981; }

@media (max-width: 720px) {
  .form-grid { grid-template-columns: 1fr; }
}