.course-management-container{padding:24px;background:#f5f7fa;min-height:100vh}.course-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;padding:16px 20px;background:#fff;border-radius:12px;box-shadow:0 2px 8px #0000000a}.course-header-title{font-size:20px;font-weight:600;color:#1f2937;margin:0}.course-actions{display:flex;gap:12px}.course-table-container{background:#fff;border-radius:12px;padding:20px;box-shadow:0 2px 8px #0000000a}.course-table-container .ant-table{font-size:14px}.course-table-container .ant-table-thead>tr>th{background:#f9fafb!important;font-weight:600;color:#374151;border-bottom:2px solid #e5e7eb;padding:14px 16px}.course-table-container .ant-table-tbody>tr>td{padding:16px;border-bottom:1px solid #f0f0f0}.course-table-container .ant-table-tbody>tr:hover>td{background:#f9fafb!important}.action-buttons{display:flex;gap:8px;flex-wrap:wrap}.action-buttons .ant-btn{border-radius:6px;font-weight:500;transition:all .2s ease;border:1px solid #e5e7eb}.action-buttons .ant-btn:hover{transform:translateY(-1px);box-shadow:0 2px 8px #0000001a}.action-buttons .ant-btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);border:none}.action-buttons .ant-btn-primary:hover{background:linear-gradient(135deg,#5568d3,#6a3f8f)}.status-selector{min-width:120px!important;position:relative!important;pointer-events:auto!important}.status-selector .ant-select-selector{border:none!important;background:transparent!important;box-shadow:none!important;padding:0!important;height:auto!important;min-height:24px!important;transition:none!important;pointer-events:auto!important;cursor:pointer!important}.status-selector,.status-selector *,.status-selector .ant-select-selector,.status-selector .ant-select-selection-item,.status-selector .ant-tag{transition:none!important;animation:none!important}.status-selector .ant-select-selection-item{padding:0!important;line-height:1.5!important;display:inline-block!important;overflow:visible!important}.status-selector .ant-select-selection-item .ant-tag{margin:0!important;padding:2px 10px!important;border-radius:12px!important;font-size:12px!important;font-weight:500!important;border:1px solid transparent!important;display:inline-flex!important;align-items:center!important;gap:4px!important;cursor:pointer!important;transition:none!important;height:22px!important;line-height:20px!important}.status-selector:hover .ant-select-selection-item .ant-tag,.status-selector.ant-select-focused .ant-select-selection-item .ant-tag,.status-selector.ant-select-open .ant-select-selection-item .ant-tag{opacity:1}.status-dropdown{border-radius:8px!important;box-shadow:0 4px 16px #0000001f!important;padding:4px!important;z-index:9999!important;pointer-events:auto!important}.status-dropdown .ant-select-item{padding:6px 12px!important;border-radius:6px!important;margin:2px!important;transition:background-color .1s ease!important;cursor:pointer!important;pointer-events:auto!important;position:relative!important}.status-dropdown .ant-select-item:hover{background:#f0f9ff!important}.status-dropdown .ant-select-item-option-selected{background:#e6f7ff!important;font-weight:500}.status-dropdown .ant-select-item .ant-tag{transition:none!important;animation:none!important;margin:0!important;pointer-events:none!important;-webkit-user-select:none!important;user-select:none!important}.status-dropdown .ant-select-item-option-content{pointer-events:auto!important;cursor:pointer!important;display:block!important;position:relative!important;z-index:1!important}.ant-select-dropdown,.ant-select-dropdown .rc-virtual-list-holder,.ant-select-dropdown .rc-virtual-list-holder-inner{pointer-events:auto!important}.status-tag-draft{background:#fafafa!important;color:#8c8c8c!important;border-color:#d9d9d9!important}.status-tag-published{background:#f6ffed!important;color:#389e0d!important;border-color:#b7eb8f!important}.status-tag-offline{background:#fff2f0!important;color:#cf1322!important;border-color:#ffccc7!important}.status-tag-upcoming{background:#e6f7ff!important;color:#0958d9!important;border-color:#91d5ff!important}.status-tag-ongoing{background:#fffbe6!important;color:#d48806!important;border-color:#ffe58f!important}.status-tag-ended{background:#f5f5f5!important;color:#595959!important;border-color:#d9d9d9!important}.status-selector.ant-select-sm .ant-select-selector{padding:0!important;min-height:24px!important}.status-selector.ant-select-sm .ant-tag{font-size:11px!important;height:20px!important;line-height:18px!important;padding:1px 8px!important}.status-dropdown{animation:antdSlideUpIn .2s ease-out!important}.status-dropdown .ant-select-item *{transition:none!important;animation:none!important}.status-selector.ant-select-disabled .ant-select-selector{opacity:.4}.status-selector.ant-select-disabled .ant-tag{cursor:not-allowed!important;opacity:.5!important}.status-selector .ant-select-arrow{display:inline-flex!important}.status-selector:after{content:none!important}.course-modal .ant-modal-header{background:linear-gradient(135deg,#667eea,#764ba2);border-radius:12px 12px 0 0;padding:20px 24px}.course-modal .ant-modal-title{color:#fff;font-size:18px;font-weight:600}.course-modal .ant-modal-close{color:#fff}.course-modal .ant-modal-close:hover{background:#ffffff1a}.course-modal .ant-modal-content{border-radius:12px;overflow:hidden}.course-modal .ant-modal-body{padding:24px}.course-modal .ant-modal-footer{border-top:1px solid #f0f0f0;padding:16px 24px}.course-modal .ant-btn{border-radius:6px;height:36px;padding:0 20px;font-weight:500}.course-modal .ant-btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);border:none}.course-form .ant-form-item-label>label{font-weight:500;color:#374151}.course-form .ant-input,.course-form .ant-input-number,.course-form .ant-select-selector,.course-form .ant-picker{border-radius:6px;border:1px solid #e5e7eb;transition:all .2s ease}.course-form .ant-input:focus,.course-form .ant-input-number:focus,.course-form .ant-select-focused .ant-select-selector,.course-form .ant-picker:focus{border-color:#667eea;box-shadow:0 0 0 2px #667eea1a}.course-form .ant-input:hover,.course-form .ant-select:hover .ant-select-selector,.course-form .ant-picker:hover{border-color:#667eea}.expanded-sessions{background:#f9fafb;padding:16px;border-radius:8px;margin:8px 0}.expanded-sessions .ant-table{background:#fff;border-radius:6px;overflow:hidden}.expanded-sessions .ant-table-thead>tr>th{background:#f3f4f6!important;font-size:13px;padding:10px 12px}.expanded-sessions .ant-table-tbody>tr>td{padding:12px}.question-table{margin-top:16px}.question-table .ant-table{border-radius:6px;overflow:hidden}.question-table .ant-table-thead>tr>th{background:#f9fafb!important;font-weight:500}.ant-spin-container{transition:opacity .3s ease}.ant-empty{padding:40px 0}.ant-empty-description{color:#9ca3af}.ant-tag{font-weight:500;border-radius:6px;padding:4px 12px;border:none}.ant-pagination{margin-top:24px}.ant-pagination-item{border-radius:6px;border:1px solid #e5e7eb;transition:all .2s ease}.ant-pagination-item:hover{border-color:#667eea}.ant-pagination-item-active{background:linear-gradient(135deg,#667eea,#764ba2);border:none}.ant-pagination-item-active a{color:#fff}@media (max-width: 768px){.course-management-container{padding:12px}.course-header{flex-direction:column;gap:12px;align-items:flex-start}.course-actions{width:100%;justify-content:flex-start}.course-table-container{padding:12px;overflow-x:auto}.action-buttons{flex-direction:column}.action-buttons .ant-btn{width:100%}.status-selector{min-width:100px!important}.status-selector .ant-tag{font-size:11px!important;padding:2px 8px!important}}.session-card-status .ant-select-selector{background:transparent!important}@keyframes successPulse{0%{box-shadow:0 0 #667eea66}70%{box-shadow:0 0 0 10px #667eea00}to{box-shadow:0 0 #667eea00}}.success-animation{animation:successPulse .6s ease-out}html,body{width:100%;height:100%}input::-ms-clear,input::-ms-reveal{display:none}*,*:before,*:after{box-sizing:border-box}html{font-family:sans-serif;line-height:1.15;-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%;-ms-overflow-style:scrollbar;-webkit-tap-highlight-color:rgba(0,0,0,0)}@-ms-viewport{width:device-width}body{margin:0}[tabindex="-1"]:focus{outline:none}hr{box-sizing:content-box;height:0;overflow:visible}h1,h2,h3,h4,h5,h6{margin-top:0;margin-bottom:.5em;font-weight:500}p{margin-top:0;margin-bottom:1em}abbr[title],abbr[data-original-title]{-webkit-text-decoration:underline dotted;text-decoration:underline dotted;border-bottom:0;cursor:help}address{margin-bottom:1em;font-style:normal;line-height:inherit}input[type=text],input[type=password],input[type=number],textarea{-webkit-appearance:none}ol,ul,dl{margin-top:0;margin-bottom:1em}ol ol,ul ul,ol ul,ul ol{margin-bottom:0}dt{font-weight:500}dd{margin-bottom:.5em;margin-left:0}blockquote{margin:0 0 1em}dfn{font-style:italic}b,strong{font-weight:bolder}small{font-size:80%}sub,sup{position:relative;font-size:75%;line-height:0;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}pre,code,kbd,samp{font-size:1em;font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,Courier,monospace}pre{margin-top:0;margin-bottom:1em;overflow:auto}figure{margin:0 0 1em}img{vertical-align:middle;border-style:none}a,area,button,[role=button],input:not([type=range]),label,select,summary,textarea{touch-action:manipulation}table{border-collapse:collapse}caption{padding-top:.75em;padding-bottom:.3em;text-align:left;caption-side:bottom}input,button,select,optgroup,textarea{margin:0;color:inherit;font-size:inherit;font-family:inherit;line-height:inherit}button,input{overflow:visible}button,select{text-transform:none}button,html [type=button],[type=reset],[type=submit]{-webkit-appearance:button}button::-moz-focus-inner,[type=button]::-moz-focus-inner,[type=reset]::-moz-focus-inner,[type=submit]::-moz-focus-inner{padding:0;border-style:none}input[type=radio],input[type=checkbox]{box-sizing:border-box;padding:0}input[type=date],input[type=time],input[type=datetime-local],input[type=month]{-webkit-appearance:listbox}textarea{overflow:auto;resize:vertical}fieldset{min-width:0;margin:0;padding:0;border:0}legend{display:block;width:100%;max-width:100%;margin-bottom:.5em;padding:0;color:inherit;font-size:1.5em;line-height:inherit;white-space:normal}progress{vertical-align:baseline}[type=number]::-webkit-inner-spin-button,[type=number]::-webkit-outer-spin-button{height:auto}[type=search]{outline-offset:-2px;-webkit-appearance:none}[type=search]::-webkit-search-cancel-button,[type=search]::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{font:inherit;-webkit-appearance:button}output{display:inline-block}summary{display:list-item}template{display:none}[hidden]{display:none!important}mark{padding:.2em;background-color:#feffe6}:where(.ant-table-wrapper) .ant-table-cell-fix-right,:where(.ant-table-wrapper) .ant-table-cell-fix-left{overflow:hidden}:where(.ant-table-wrapper) .km-table-actions{display:flex;flex-wrap:wrap;gap:6px;align-items:center}:where(.ant-table-wrapper) .km-table-actions .ant-btn{padding-inline:8px}:where(.ant-table-wrapper) td.ant-table-cell-fix-right:last-child,:where(.ant-table-wrapper) th.ant-table-cell-fix-right:last-child{white-space:normal}