.dash-table-wrap{background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden;overflow-x:auto}.dash-table{width:100%;border-collapse:collapse;min-width:640px}.dash-table thead{background-color:var(--color-light);border-bottom:1px solid var(--color-border)}.dash-table th{padding:.85rem 1rem;text-align:left;font-size:var(--font-size-xs);font-weight:700;color:var(--color-muted);text-transform:uppercase;letter-spacing:.5px;white-space:nowrap}.dash-table td{padding:.9rem 1rem;font-size:var(--font-size-sm);color:var(--color-dark);border-bottom:1px solid var(--color-border);vertical-align:middle}.dash-table tbody tr:last-child td{border-bottom:none}.dash-table tbody tr:hover{background-color:#fafafa}.table-course{display:flex;align-items:center;gap:var(--gap-md)}.table-course__thumb{width:52px;height:38px;border-radius:var(--radius-sm);object-fit:cover;flex-shrink:0}.table-course div{display:flex;flex-direction:column;gap:2px}.table-course strong{font-size:var(--font-size-sm);font-weight:600;color:var(--color-dark)}.table-actions{display:flex;align-items:center;gap:var(--gap-xs);flex-wrap:nowrap}.course-form-layout{max-width:780px}.course-form{display:flex;flex-direction:column;gap:var(--gap-xl)}.course-form .form-group{display:flex;flex-direction:column;gap:var(--gap-xs);margin-bottom:var(--gap-lg)}.course-form .form-group:last-of-type{margin-bottom:0}.course-form label{font-size:var(--font-size-sm);font-weight:600;color:var(--color-dark)}.required{color:var(--color-danger)}.course-form .form-input-wrap input,.course-form textarea{width:100%;padding:.75rem 1rem .75rem 2.8rem;border:1.5px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--font-size-sm);color:var(--color-dark);background:var(--color-white);outline:none;transition:border-color .2s,box-shadow .2s;font-family:var(--font-family)}.course-form textarea{padding:.75rem 1rem;resize:vertical}.course-form .form-input-wrap input:focus,.course-form textarea:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px #4f46e51a}.form-select-wrap{position:relative;display:flex;align-items:center}.form-select-wrap>i{position:absolute;left:.9rem;color:var(--color-muted);font-size:var(--font-size-sm);pointer-events:none}.form-select-wrap select{width:100%;padding:.75rem 1rem .75rem 2.8rem;border:1.5px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--font-size-sm);color:var(--color-dark);background:var(--color-white);outline:none;cursor:pointer;appearance:none;transition:border-color .2s;font-family:var(--font-family)}.form-select-wrap select:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px #4f46e51a}.thumbnail-preview{margin-top:var(--gap-md);border-radius:var(--radius-md);overflow:hidden;max-width:320px;border:1px solid var(--color-border)}.thumbnail-preview img{width:100%;height:180px;object-fit:cover}.form-submit-row{display:flex;align-items:center;gap:var(--gap-md)}.builder-info-bar{display:flex;align-items:center;gap:var(--gap-xl);background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:1rem var(--gap-lg);margin-bottom:var(--gap-xl);flex-wrap:wrap}.builder-info-bar span{display:flex;align-items:center;gap:var(--gap-sm);font-size:var(--font-size-sm);color:var(--color-muted)}.builder-layout{display:grid;grid-template-columns:1fr 280px;gap:var(--gap-xl);align-items:start}.builder-main{background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden}.builder-header{display:flex;align-items:center;justify-content:space-between;padding:var(--gap-lg);border-bottom:1px solid var(--color-border);background-color:var(--color-light)}.builder-header h2{font-size:var(--font-size-base);font-weight:700;color:var(--color-dark)}.builder-add-form{padding:var(--gap-lg);background-color:#f8f9ff;border-bottom:1px solid var(--color-border);display:flex;flex-direction:column;gap:var(--gap-md)}.builder-add-form .form-input-wrap input{width:100%;padding:.65rem 1rem .65rem 2.5rem;border:1.5px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--font-size-sm);outline:none;background:#fff;font-family:var(--font-family)}.builder-add-form .form-input-wrap input:focus{border-color:var(--color-primary)}.builder-add-form__actions{display:flex;gap:var(--gap-sm)}.builder-sections{padding:var(--gap-md);display:flex;flex-direction:column;gap:var(--gap-md);min-height:100px}.builder-section{border:1px solid var(--color-border);border-radius:var(--radius-md);overflow:hidden}.builder-section__header{display:flex;align-items:center;justify-content:space-between;padding:.75rem var(--gap-md);background-color:var(--color-light);cursor:pointer;gap:var(--gap-md)}.builder-section__left{display:flex;align-items:center;gap:var(--gap-sm);flex:1;min-width:0}.builder-section__title{font-size:var(--font-size-sm);font-weight:600;color:var(--color-dark);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.builder-section__actions{display:flex;align-items:center;gap:var(--gap-xs);flex-shrink:0}.builder-topics{border-top:1px solid var(--color-border)}.builder-topic{display:flex;align-items:center;justify-content:space-between;padding:.65rem var(--gap-md) .65rem 2rem;border-bottom:1px solid var(--color-border);gap:var(--gap-md);background-color:var(--color-white);transition:background .15s}.builder-topic:last-child{border-bottom:none}.builder-topic:hover{background-color:#fafafa}.builder-topic__left{display:flex;align-items:center;gap:var(--gap-sm);font-size:var(--font-size-sm);color:var(--color-dark);flex:1;min-width:0}.builder-topic__left span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.builder-topic__right{display:flex;align-items:center;gap:var(--gap-xs);flex-shrink:0}.topic-type-icon{width:16px;flex-shrink:0}.topic-type--video{color:var(--color-primary)}.topic-type--quiz{color:var(--color-warning)}.topic-type--assignment{color:var(--color-success)}.topic-type--text{color:var(--color-muted)}.drag-handle{color:#cbd5e1;cursor:grab;font-size:var(--font-size-sm);flex-shrink:0}.drag-handle:active{cursor:grabbing}.icon-btn{width:28px;height:28px;border-radius:var(--radius-sm);background:none;border:1px solid var(--color-border);color:var(--color-muted);display:flex;align-items:center;justify-content:center;font-size:var(--font-size-xs);cursor:pointer;transition:all .15s;flex-shrink:0}.icon-btn:hover{background-color:var(--color-light);color:var(--color-dark)}.icon-btn--danger:hover{background-color:#fee2e2;color:var(--color-danger);border-color:var(--color-danger)}.builder-add-topic-form{padding:var(--gap-md);background-color:#f8f9ff;border-top:1px solid var(--color-border);display:flex;flex-direction:column;gap:var(--gap-md)}.add-topic-fields{display:flex;gap:var(--gap-sm);align-items:center;flex-wrap:wrap}.add-topic-fields .form-input-wrap input,.add-topic-fields .form-select-wrap select{padding:.6rem 1rem .6rem 2.3rem;border:1.5px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--font-size-sm);outline:none;background:#fff;font-family:var(--font-family);width:100%}.add-topic-fields .form-input-wrap input:focus,.add-topic-fields .form-select-wrap select:focus{border-color:var(--color-primary)}.builder-empty{text-align:center;padding:3rem 2rem;color:var(--color-muted)}.builder-empty i{font-size:2.5rem;display:block;margin-bottom:var(--gap-md);color:var(--color-border)}.builder-tips{display:flex;flex-direction:column;gap:var(--gap-md);padding:0}.builder-tips li{display:flex;align-items:flex-start;gap:var(--gap-sm);font-size:var(--font-size-sm);color:var(--color-muted);line-height:1.5}.builder-tips li i{color:var(--color-primary);margin-top:2px;flex-shrink:0}.builder-stats{display:flex;flex-direction:column;gap:var(--gap-md)}.builder-stat{display:flex;align-items:center;justify-content:space-between;padding:.6rem 0;border-bottom:1px solid var(--color-border);font-size:var(--font-size-sm)}.builder-stat:last-child{border-bottom:none}.builder-stat span{color:var(--color-muted)}.builder-stat strong{font-weight:700;color:var(--color-dark)}.modal-overlay{position:fixed;inset:0;background:#00000080;z-index:1000;display:flex;align-items:center;justify-content:center;padding:1rem}.modal{background:var(--color-white);border-radius:var(--radius-lg);width:100%;max-width:520px;box-shadow:var(--shadow-lg);overflow:hidden}.modal__header{display:flex;align-items:center;justify-content:space-between;padding:var(--gap-lg);border-bottom:1px solid var(--color-border);background-color:var(--color-light)}.modal__header h3{font-size:var(--font-size-base);font-weight:700;color:var(--color-dark)}.modal__close{width:30px;height:30px;border-radius:50%;background-color:var(--color-border);color:var(--color-dark);display:flex;align-items:center;justify-content:center;cursor:pointer;border:none;transition:background .15s}.modal__close:hover{background-color:#cbd5e1}.modal__body{padding:var(--gap-xl);display:flex;flex-direction:column;gap:0}.modal__body .form-group{display:flex;flex-direction:column;gap:var(--gap-xs)}.modal__body label{font-size:var(--font-size-sm);font-weight:600;color:var(--color-dark)}.modal__body .form-input-wrap input,.modal__body textarea{width:100%;padding:.7rem 1rem .7rem 2.6rem;border:1.5px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--font-size-sm);color:var(--color-dark);background:#fff;outline:none;transition:border-color .2s;font-family:var(--font-family)}.modal__body textarea{padding:.7rem 1rem;resize:vertical}.modal__body .form-input-wrap input:focus,.modal__body textarea:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px #4f46e51a}.modal__footer{display:flex;gap:var(--gap-md);padding:var(--gap-lg);border-top:1px solid var(--color-border);background-color:var(--color-light)}.section-toggle-icon{color:var(--color-muted);font-size:var(--font-size-xs);transition:transform .2s;flex-shrink:0}.section-toggle-icon.collapsed{transform:rotate(-90deg)}@media(max-width:1024px){.builder-layout{grid-template-columns:1fr}.builder-sidebar{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap-lg)}.builder-sidebar .dash-card:last-child{margin-top:0}}@media(max-width:768px){.course-form-layout{max-width:100%}.form-row{grid-template-columns:1fr}.builder-info-bar{gap:var(--gap-md)}.add-topic-fields{flex-direction:column;align-items:stretch}.builder-sidebar{grid-template-columns:1fr}.table-actions{flex-wrap:wrap}}