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#0000001a}.header-section{text-align:center;margin-bottom:2.5rem}.header-section h1{color:#222088;font-size:2rem;font-weight:700;margin-bottom:.5rem}.subtitle{color:#666;font-size:1rem}.requests-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}.request-card{background:#fff;border:1px solid #eef0f2;border-radius:10px;display:flex;overflow:hidden;box-shadow:0 4px 10px #0000000d;transition:transform .2s ease}.request-card:hover{transform:translateY(-4px);box-shadow:0 6px 15px #2220881a}.card-status-bar{width:6px;background-color:#222088}.card-content{padding:1.5rem;width:100%;display:flex;flex-direction:column}.card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:1rem}.card-header h3{margin:0;color:#333;font-size:1.2rem;font-weight:700}.status-pill{font-size:.7rem;font-weight:800;padding:4px 8px;border-radius:12px;background:#eef0ff;color:#222088}.card-body p{margin:5px 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#e1e8ed;border-radius:12px;margin-top:20px}.empty-state-icon{width:80px;height:80px;color:#222088;background-color:#eef0ff;padding:15px;border-radius:50%;margin-bottom:20px}.empty-state-container h2{color:#333;font-size:1.5rem;margin-bottom:10px;font-weight:700}.empty-state-container p{color:#777;max-width:400px;line-height:1.6;margin-bottom:25px}.refresh-btn{background-color:transparent;color:#222088;border:1.5px solid #222088;padding:8px 20px;border-radius:6px;font-weight:600;cursor:pointer;transition:all .2s ease}.refresh-btn:hover{background-color:#222088;color:#fff}.card-status-bar.pendiente{background-color:#222088}.card-status-bar.completada{background-color:#28a745}.status-pill.pendiente{background:#eef0ff;color:#222088}.status-pill.completada{background:#d4edda;color:#155724}.completed-badge{display:flex;align-items:center;justify-content:center;gap:8px;padding:10px;background-color:#f0fff4;color:#28a745;font-weight:700;font-size:.9rem;border-radius:6px;border:1px solid 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#ddd;border-radius:8px;background-color:#fff;color:#555;outline:none;transition:border-color .3s ease,box-shadow .3s ease;box-sizing:border-box}.form-group input:focus,.form-group select:focus{border-color:#222088;box-shadow:0 0 8px #2220884d}.materias-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;background-color:#fafafa;padding:15px;border-radius:8px;border:1px solid #eee;max-height:200px;overflow-y:auto}.materia-checkbox{display:flex!important;align-items:center;cursor:pointer;font-weight:400!important;font-size:.9rem!important;padding:5px;border-radius:4px;transition:background .2s}.materia-checkbox:hover{background-color:#e8eaf6}.materia-checkbox input{width:auto!important;margin-right:10px;accent-color:#222088;transform:scale(1.2);cursor:pointer}.selection-count{font-size:.85rem;color:#222088;margin-top:8px;text-align:right;font-weight:600}.submit-btn{background-color:#222088;color:#fff;border:none;padding:1rem;font-size:1.1rem;border-radius:8px;font-weight:700;cursor:pointer;width:100%;margin-top:1rem;box-shadow:0 4px 14px #22208866;transition:all .3s ease}.submit-btn:hover:not(:disabled){background-color:#02006e;transform:translateY(-2px);box-shadow:0 6px 20px #02006e99}.submit-btn:disabled{background-color:#ccc;cursor:not-allowed;box-shadow:none}.actividad-container{min-height:100vh;padding:40px 20px;background-color:#f0f5f8;display:flex;justify-content:center;align-items:flex-start;text-align:center}.actividad-card{background:#fff;width:100%;max-width:1100px;padding:2rem;border-radius:12px;box-shadow:0 8px 24px #0000001a}.actividad-header h1{color:#222088;margin-bottom:.5rem;font-size:1.8rem}.actividad-header p{color:#666;margin-bottom:2rem;font-size:.95rem}.table-responsive{overflow-x:auto}.logs-table{width:100%;border-collapse:collapse;font-family:Arial,sans-serif;font-size:.95rem}.logs-table th{background-color:#222088;color:#fff;text-align:left;padding:14px;font-weight:600;border-radius:4px 4px 0 0}.logs-table td{padding:14px;border-bottom:1px solid #eee;color:#333}.logs-table tbody tr:nth-child(2n){background-color:#f8f9fa}.logs-table tbody tr:hover{background-color:#eef2ff}.badge{padding:4px 10px;border-radius:12px;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px}.badge-admin{background-color:#e3f2fd;color:#1565c0;border:1px solid #bbdefb}.badge-tutor{background-color:#fff3e0;color:#ef6c00;border:1px solid #ffe0b2}.badge-estudiante{background-color:#e8f5e9;color:#2e7d32;border:1px solid #c8e6c9}.col-fecha{white-space:nowrap;color:#555;font-size:.9rem}.col-user{font-weight:600}.col-detalle{color:#666;font-style:italic}.loading-state,.empty-state{text-align:center;padding:40px;color:#888;font-style:italic}