:root {
  --bg: #f4f6fa;
  --panel: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --brand: #2563eb;
  --brand-dark: #1d4ed8;
  --danger: #dc2626;
  --ok: #16a34a;
  --warn: #ca8a04;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: Inter, ui-sans-serif, system-ui, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--brand-dark); text-decoration: none; }
.layout { display: grid; grid-template-columns: 280px 1fr; min-height: 100vh; }
.sidebar { background: #111827; color: #fff; padding: 24px 18px; display:flex; flex-direction:column; gap:20px; }
.brand { display:flex; align-items:center; gap:14px; }
.brand.compact { margin-bottom: 18px; }
.brand h1 { margin:0; font-size: 20px; }
.brand p { margin: 4px 0 0; color:#cbd5e1; font-size: 13px; }
.brand-badge { width:48px; height:48px; border-radius:12px; background: var(--brand); display:flex; align-items:center; justify-content:center; font-weight:700; }
.sidebar nav { display:flex; flex-direction:column; gap:8px; }
.sidebar nav a { padding: 12px 14px; border-radius: 12px; color:#d1d5db; font-weight:600; }
.sidebar nav a.active, .sidebar nav a:hover { background:#1f2937; color:#fff; }
.sidebar-user { margin-top:auto; display:flex; align-items:center; justify-content:space-between; background:#1f2937; border-radius: 14px; padding: 12px; }
.sidebar-user span { display:block; color:#9ca3af; font-size: 12px; }
.content { padding: 28px; }
.page-head { display:flex; justify-content:space-between; align-items:flex-start; margin-bottom:22px; gap:16px; }
.page-head h2 { margin:0 0 4px; font-size: 32px; }
.page-head p { margin:0; color: var(--muted); }
.cards { display:grid; gap:18px; margin-bottom:24px; }
.cards.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cards.six { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.metric-card { background: var(--panel); border:1px solid var(--line); border-radius: 18px; padding: 18px 20px; }
.metric-card span { display:block; color: var(--muted); font-size: 14px; margin-bottom: 8px; }
.metric-card strong { font-size: 34px; }
.split { display:grid; gap:22px; }
.two-col-equal { grid-template-columns: 1fr 1fr; }
.two-col-wide { grid-template-columns: 1.2fr .8fr; }
.panel { background: var(--panel); border:1px solid var(--line); border-radius: 20px; padding: 20px; margin-bottom:22px; }
.panel-head { display:flex; justify-content:space-between; align-items:center; margin-bottom: 16px; }
.panel-head h3, .panel-head h4 { margin:0; }
.panel-head.subhead { margin-top: 18px; }
.table-wrap { overflow:auto; }
table { width:100%; border-collapse:collapse; font-size:14px; }
th, td { padding: 12px 10px; border-bottom:1px solid var(--line); text-align:left; vertical-align:top; }
th { color: var(--muted); font-weight:600; }
.status-pill { display:inline-flex; align-items:center; gap:6px; padding: 6px 10px; border-radius:999px; font-size:12px; font-weight:700; }
.status-pill.ok { background:#dcfce7; color: #166534; }
.status-pill.err { background:#fee2e2; color:#991b1b; }
.status-pill.warn { background:#fef3c7; color:#92400e; }
.status-pill.muted { background:#e5e7eb; color:#4b5563; }
.status-pill.info { background:#dbeafe; color:#1d4ed8; }
.form-grid { display:grid; gap:16px; }
.form-grid.two-col { grid-template-columns: 1fr 1fr; }
.form-grid.compact-grid { gap: 12px; }
.form-grid .full { grid-column: 1 / -1; }
label { display:block; font-size: 13px; color: var(--muted); margin-bottom:6px; font-weight:600; }
input, select { width:100%; padding: 12px 14px; border:1px solid #d1d5db; border-radius: 12px; background:#fff; font: inherit; }
.checkbox { display:flex; align-items:center; gap:10px; color: var(--text); font-weight:600; }
.checkbox input { width: auto; }
.action-row { display:flex; gap:10px; }
.actions, .inline-actions { display:flex; flex-wrap:wrap; gap:10px; }
.btn { display:inline-flex; align-items:center; justify-content:center; background: var(--brand); color:#fff; border:0; border-radius: 12px; padding: 11px 16px; font-weight:700; cursor:pointer; }
.btn.secondary { background:#fff; border:1px solid var(--line); color:var(--text); }
.btn.danger { background: var(--danger); color:#fff; }
.btn.small { padding: 8px 12px; font-size: 12px; }
.detail-grid { display:grid; grid-template-columns: 1fr 1fr; gap:16px; }
.detail-grid .full { grid-column:1 / -1; }
.detail-box { background:#f9fafb; border:1px solid var(--line); border-radius: 12px; padding: 12px 14px; min-height: 48px; }
.review-form { border:1px solid var(--line); border-radius:16px; padding:16px; margin-bottom:16px; background:#fafafa; }
.review-form h4 { margin:0 0 12px; }
.login-wrap { min-height:100vh; display:flex; align-items:center; justify-content:center; padding:24px; background: linear-gradient(135deg, #eff6ff, #f8fafc); }
.login-card { width:100%; max-width: 420px; background:#fff; border:1px solid var(--line); border-radius: 22px; padding: 28px; box-shadow: 0 20px 50px rgba(15,23,42,.08); }
.login-card label { margin-top: 10px; }
.login-card .btn { width:100%; margin-top:18px; }
.alert { padding:12px 14px; border-radius:12px; margin-bottom:14px; }
.alert.error { background:#fee2e2; color:#991b1b; }
@media (max-width: 1200px) {
  .cards.six { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .two-col-equal, .two-col-wide { grid-template-columns: 1fr; }
}
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .cards.three, .cards.six, .form-grid.two-col, .detail-grid { grid-template-columns: 1fr; }
  .content { padding: 16px; }
}