:root {
  color-scheme: light;
  --school-font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --school-bg: #f6f7fb;
  --school-surface: #ffffff;
  --school-surface-subtle: #fafbfe;
  --school-text: #172033;
  --school-muted: #687386;
  --school-border: #e4e8f0;
  --school-border-strong: #d7ddea;
  --school-primary: #253858;
  --school-primary-soft: #eef2f8;
  --school-success: #287a55;
  --school-warning: #9a6814;
  --school-danger: #b83b3b;
  --school-radius-sm: 8px;
  --school-radius: 12px;
  --school-radius-lg: 18px;
  --school-shadow: 0 8px 28px rgba(20, 35, 60, .06);
  --school-sidebar: 248px;
  --school-topbar: 68px;
  font-family: var(--school-font);
  background: var(--school-bg);
  color: var(--school-text);
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: var(--school-bg); color: var(--school-text); font-family: var(--school-font); }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
.school-card { background: var(--school-surface); border: 1px solid var(--school-border); border-radius: var(--school-radius-lg); box-shadow: var(--school-shadow); }
.school-button { min-height: 40px; padding: 8px 14px; border: 1px solid var(--school-border-strong); border-radius: var(--school-radius); background: var(--school-surface); color: var(--school-text); font-weight: 650; }
.school-button--primary { background: var(--school-primary); color: #fff; border-color: var(--school-primary); }
.school-input { min-height: 40px; padding: 8px 11px; border: 1px solid var(--school-border-strong); border-radius: var(--school-radius); background: var(--school-surface); color: var(--school-text); }
.school-badge { display: inline-flex; align-items: center; min-height: 26px; padding: 3px 9px; border-radius: 999px; background: var(--school-primary-soft); color: var(--school-primary); font-size: 12px; font-weight: 700; }
.school-page-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; margin-bottom: 22px; }
.school-page-header h1 { margin: 0; font-size: clamp(24px, 3vw, 34px); letter-spacing: -.025em; }
.school-page-header p { margin: 6px 0 0; color: var(--school-muted); }
.school-table { width: 100%; border-collapse: collapse; }
.school-table th, .school-table td { padding: 12px 14px; border-bottom: 1px solid var(--school-border); text-align: start; }
.school-table th { color: var(--school-muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.school-stack { display: grid; gap: 18px; }
.school-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 18px; }
.school-drawer { position: fixed; inset-block: 0; inset-inline-end: 0; width: min(440px, 100vw); background: var(--school-surface); border-inline-start: 1px solid var(--school-border); box-shadow: -18px 0 40px rgba(20,35,60,.12); z-index: 50; }
@media (max-width: 760px) { .school-page-header { flex-direction: column; } .school-grid { grid-template-columns: 1fr; } }