:root{--lesrooster-gap:20px;--lesrooster-padding:20px;--lesrooster-border-radius:8px;--lesrooster-primary-color:#007cba;--lesrooster-secondary-color:#28a745;--lesrooster-danger-color:#dc3545;--lesrooster-text-color:#495057;--lesrooster-bg-light:#f8f9fa;--lesrooster-border-color:#e9ecef;--lesrooster-refresh-timeout:2000ms;--lesrooster-min-touch-height:48px;--primary-color:var(--lesrooster-primary-color);--border-radius:var(--lesrooster-border-radius);--spacing-sm:8px;--spacing-md:16px;--spacing-lg:24px;--border-color:var(--lesrooster-border-color);--hover-color:#f0f8ff;--text-color:#333;--text-muted:#999}.lesrooster-container{margin:20px 0;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,Cantarell,sans-serif}.lesrooster-filters{margin-bottom:16px}.lesrooster-accordion{border:1px solid var(--border-color);border-radius:8px;background:#f8f9fa}.lesrooster-accordion[open]{background:#fff}.lesrooster-accordion-summary{list-style:none;cursor:pointer;padding:12px 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ease;cursor:pointer}.lesrooster-day:hover{background:#e9ecef;border-color:#007cba}.lesrooster-day input[type="checkbox"]:checked+span{font-weight:600;color:#007cba}.lesrooster-day.checked{background:#e3f2fd;border-color:#007cba;color:#007cba}.lesrooster-day input[type="checkbox"]{accent-color:#007cba;width:16px;height:16px;margin:0;flex-shrink:0}.lesrooster-wijk-group{display:flex;flex-direction:column;gap:12px;padding:16px;background:#d4edda;border:1px solid #28a745;border-radius:var(--lesrooster-border-radius)}.lesrooster-wijk-label{font-weight:600;color:#495057;font-size:14px;margin-bottom:4px}.lesrooster-wijk-checkboxes{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:8px}@supports not (display:grid){.lesrooster-wijk-checkboxes{display:flex;flex-wrap:wrap;gap:8px}}.lesrooster-wijk{display:inline-flex;align-items:center;gap:8px;padding:6px 10px;background:#f1f3f5;border:1px solid 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