.student-chart-container[data-v-12f8edea]{background:#fff;border-radius:8px;padding:24px;box-shadow:0 2px 8px rgba(0,0,0,.1);margin-bottom:24px}.chart-controls[data-v-12f8edea]{margin-bottom:24px}.date-range-selector[data-v-12f8edea]{display:flex;align-items:center;gap:12px}.date-input[data-v-12f8edea]{padding:8px 12px;border:1px solid #ddd;border-radius:4px;font-size:14px;min-width:120px}.date-input[data-v-12f8edea]:focus{outline:none;border-color:#007bff;box-shadow:0 0 0 2px rgba(0,123,255,.25)}.date-separator[data-v-12f8edea]{font-weight:500;color:#666}.search-button[data-v-12f8edea]{background:#007bff;color:#fff;border:none;padding:8px 16px;border-radius:4px;cursor:pointer;font-size:14px;font-weight:500}.search-button[data-v-12f8edea]:hover:not(:disabled){background:#0056b3}.search-button[data-v-12f8edea]:disabled{background:#6c757d;cursor:not-allowed}.chart-title[data-v-12f8edea]{margin-bottom:20px}.chart-title h3[data-v-12f8edea]{margin:0;font-size:18px;font-weight:600;color:#333}.chart-wrapper[data-v-12f8edea]{position:relative;height:400px;width:100%}.chart-canvas[data-v-12f8edea]{width:100%!important;height:100%!important}.loading[data-v-12f8edea],.no-data[data-v-12f8edea]{text-align:center;padding:40px;color:#666;font-size:16px}.loading[data-v-12f8edea]{color:#007bff}