:root {
  --bg: #f5f6f8;
  --panel: #ffffff;
  --border: #e2e5ea;
  --text: #1c2128;
  --muted: #6b7280;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --good: #16a34a;
  --good-bg: #dcfce7;
  --warn: #d97706;
  --warn-bg: #fef3c7;
  --bad: #dc2626;
  --bad-bg: #fee2e2;
  --sidebar-bg: #14181f;
  --sidebar-text: #cbd2dc;
  --radius: 8px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

code {
  background: #eef0f3;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
}

.shell { display: flex; min-height: 100vh; }

.sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  padding: 20px 0;
}

.sidebar .brand {
  font-weight: 700;
  font-size: 16px;
  color: #fff;
  padding: 0 20px 20px;
}

.nav-links { list-style: none; margin: 0; padding: 0; flex: 1; }
.nav-links li a {
  display: block;
  padding: 10px 20px;
  color: var(--sidebar-text);
  border-left: 3px solid transparent;
}
.nav-links li a:hover { background: rgba(255,255,255,0.06); text-decoration: none; }
.nav-links li a.active {
  background: rgba(255,255,255,0.08);
  color: #fff;
  border-left-color: var(--primary);
}

.sidebar-footer {
  padding: 16px 20px 0;
  border-top: 1px solid rgba(255,255,255,0.1);
  margin-top: 12px;
}
.user-chip { font-size: 13px; margin-bottom: 8px; color: #fff; }
.user-chip .role { color: var(--sidebar-text); margin-left: 4px; font-size: 12px; }

.link-button {
  background: none;
  border: none;
  color: var(--sidebar-text);
  cursor: pointer;
  padding: 0;
  font-size: 13px;
}
.link-button:hover { color: #fff; text-decoration: underline; }

.content {
  flex: 1;
  padding: 28px 36px;
  max-width: 1100px;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  gap: 12px;
  flex-wrap: wrap;
}
.page-header h1 { margin: 0; font-size: 22px; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}
.panel-narrow { max-width: 520px; }
.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.panel-header h2 { margin: 0; font-size: 16px; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
}
.stat-value { font-size: 28px; font-weight: 700; }
.stat-label { color: var(--muted); font-size: 13px; margin-top: 4px; }
.stat-good .stat-value { color: var(--good); }
.stat-warn .stat-value { color: var(--warn); }
.stat-bad .stat-value { color: var(--bad); }

.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.data-table th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.03em; }

.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: #eef0f3;
  color: var(--muted);
}
.badge-good { background: var(--good-bg); color: var(--good); }
.badge-warn { background: var(--warn-bg); color: var(--warn); }
.badge-bad { background: var(--bad-bg); color: var(--bad); }

.btn {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
  line-height: 1.2;
}
.btn:hover { background: #f0f1f3; text-decoration: none; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-danger { background: #fff; border-color: var(--bad); color: var(--bad); }
.btn-danger:hover { background: var(--bad-bg); }
.btn-small { padding: 5px 10px; font-size: 12px; }
.btn-block { width: 100%; text-align: center; }

.row-actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.inline-form { display: inline; }

.filter-bar {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.filter-bar select, .filter-bar input[type="text"] {
  padding: 8px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  font-size: 13px;
}

form label {
  display: block;
  margin-bottom: 14px;
  font-weight: 600;
  font-size: 13px;
}
form input, form select, form textarea {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 9px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  font-size: 14px;
  font-family: inherit;
  font-weight: normal;
}
form input:disabled { background: #f4f5f6; color: var(--muted); }
.hint { display: block; font-weight: normal; color: var(--muted); font-size: 12px; margin-top: 4px; }
.form-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; }

.muted { color: var(--muted); }
.small { font-size: 12px; }

.flash {
  padding: 10px 14px;
  border-radius: 6px;
  margin-bottom: 16px;
  font-size: 13px;
}
.flash-success { background: var(--good-bg); color: var(--good); }
.flash-error { background: var(--bad-bg); color: var(--bad); }

.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
}
.auth-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  width: 100%;
  max-width: 360px;
}
.auth-card h1 { margin: 0 0 4px; font-size: 20px; }

.detail-list { display: grid; grid-template-columns: 180px 1fr; row-gap: 12px; margin: 0; }
.detail-list dt { color: var(--muted); font-size: 13px; }
.detail-list dd { margin: 0; }

.code-block {
  background: #14181f;
  color: #d7dee8;
  padding: 14px;
  border-radius: 6px;
  overflow-x: auto;
  font-size: 12.5px;
}