:root {
  --bg: #0f1115;
  --panel: #171a21;
  --border: #262b36;
  --text: #e6e8eb;
  --muted: #8a92a3;
  --accent: #4f8cff;
  --good: #35c17a;
  --warn: #e6b800;
  --bad: #e5484d;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.layout { display: flex; min-height: 100vh; }
.sidebar { width: 220px; background: var(--panel); border-right: 1px solid var(--border); padding: 20px 0; display: flex; flex-direction: column; }
.sidebar .brand { font-weight: 700; padding: 0 20px 20px; }
.sidebar a { padding: 10px 20px; color: var(--text); }
.sidebar a.active, .sidebar a:hover { background: rgba(79,140,255,0.12); text-decoration: none; }
.sidebar-footer { margin-top: auto; padding: 20px; border-top: 1px solid var(--border); }
.user-chip { color: var(--muted); font-size: 13px; margin-bottom: 8px; }
.link-button { background: none; border: none; color: var(--accent); cursor: pointer; padding: 0; font-size: 13px; }

.content { flex: 1; padding: 32px; max-width: 1100px; }
h1 { margin-top: 0; }

.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 20px 0 32px; }
.stat-card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 18px; display: flex; flex-direction: column; }
.stat-num { font-size: 32px; font-weight: 700; }
.stat-label { color: var(--muted); font-size: 13px; margin-top: 4px; }
.stat-good .stat-num { color: var(--good); }
.stat-bad .stat-num { color: var(--bad); }
.stat-warn .stat-num { color: var(--warn); }

.data-table { width: 100%; border-collapse: collapse; margin: 12px 0 28px; }
.data-table th, .data-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 14px; }
.data-table th { color: var(--muted); font-weight: 600; }

.badge { padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-info { background: rgba(79,140,255,0.15); color: var(--accent); }
.badge-warning { background: rgba(230,184,0,0.15); color: var(--warn); }
.badge-critical, .badge-status-revoked { background: rgba(229,72,77,0.15); color: var(--bad); }
.badge-status-online { background: rgba(53,193,122,0.15); color: var(--good); }
.badge-status-offline { background: rgba(229,72,77,0.15); color: var(--bad); }
.badge-status-pending { background: rgba(230,184,0,0.15); color: var(--warn); }

.filter-bar { display: flex; gap: 10px; margin-bottom: 16px; align-items: center; }
.filter-bar input[type=text], .filter-bar select { background: var(--panel); border: 1px solid var(--border); color: var(--text); padding: 8px 10px; border-radius: 6px; }

.stacked-form { display: flex; flex-direction: column; gap: 12px; max-width: 360px; margin-bottom: 24px; }
.stacked-form label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); }
.stacked-form input, .stacked-form select { background: var(--panel); border: 1px solid var(--border); color: var(--text); padding: 8px 10px; border-radius: 6px; }

button, .stacked-form button { background: var(--accent); color: #fff; border: none; padding: 8px 14px; border-radius: 6px; cursor: pointer; font-size: 13px; }
button.danger { background: var(--bad); }
button:hover { opacity: 0.9; }

.muted { color: var(--muted); }
.detail-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 20px 0 28px; }
.detail-grid strong { display: block; font-size: 12px; color: var(--muted); font-weight: 600; margin-bottom: 4px; }

.alert { padding: 10px 14px; border-radius: 6px; margin-bottom: 16px; font-size: 14px; }
.alert-error { background: rgba(229,72,77,0.15); color: var(--bad); }
.alert-ok { background: rgba(53,193,122,0.15); color: var(--good); }

/* Login page */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--bg); }
.login-card { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 32px; width: 320px; display: flex; flex-direction: column; gap: 14px; }
.login-card h1 { font-size: 20px; margin: 0 0 10px; }
.login-card label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); }
.login-card input { background: #0f1115; border: 1px solid var(--border); color: var(--text); padding: 10px; border-radius: 6px; }