:root{font-family:DM Sans,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;line-height:1.5;font-weight:400;color-scheme:light;color:#111;background-color:#fff;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box;margin:0;padding:0}body{margin:0;font-family:inherit;min-width:320px;min-height:100vh;background-color:#f5f5f5}a{font-weight:500;color:#007bff;text-decoration:none}a:hover{color:#0056b3;text-decoration:underline}h1{font-size:2.5em;line-height:1.2;font-weight:600;color:#111}h2{font-size:2em;line-height:1.3;font-weight:600;color:#111}h3{font-size:1.5em;line-height:1.4;font-weight:600;color:#111}h4{font-size:1.2em;line-height:1.4;font-weight:600;color:#111}input,select,textarea,button{font-family:inherit;font-size:inherit}input:focus,select:focus,textarea:focus{outline:2px solid #007bff;outline-offset:2px}button{border-radius:4px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;cursor:pointer;transition:all .2s;background-color:#007bff;color:#fff}button:hover:not(:disabled){background-color:#0056b3;transform:translateY(-1px)}button:active:not(:disabled){transform:translateY(0)}button:disabled{opacity:.6;cursor:not-allowed}button:focus,button:focus-visible{outline:2px solid #007bff;outline-offset:2px}.glass-btn,.glass-btn:hover:not(:disabled),.glass-btn:active:not(:disabled),.add-dashed-btn,.add-dashed-btn:hover:not(:disabled),.add-dashed-btn:active:not(:disabled),.mc-btn,.mc-btn:hover:not(:disabled),.mc-btn:active:not(:disabled){transform:none!important;background-color:unset;color:unset}.card-row-track::-webkit-scrollbar{display:none}.blobs-bg{position:fixed;inset:0;pointer-events:none;z-index:0;overflow:hidden}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#00000026;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#00000040}*{scrollbar-width:thin;scrollbar-color:rgba(0,0,0,.15) transparent}.spinner{border:4px solid #f3f3f3;border-top:4px solid #007bff;border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite}@keyframes progress-indeterminate{0%{left:-35%}to{left:100%}}.profile-header{background:#fff;border:1px solid rgba(0,0,0,.09);border-radius:12px;padding:32px;margin-bottom:32px;box-shadow:0 1px 4px #0000000f}.profile-header-content{display:flex;gap:32px;align-items:flex-start}.profile-picture-section{flex-shrink:0}.profile-picture{width:120px;height:120px;border-radius:50%;object-fit:cover;border:3px solid rgba(0,0,0,.08);box-shadow:0 2px 8px #0000001a}.profile-info-section{flex:1;display:flex;flex-direction:column;gap:16px}.profile-header-row{display:flex;justify-content:space-between;align-items:center;gap:16px}.profile-name{margin:0;font-size:35.2px;font-weight:600;color:#111}.edit-profile-btn{padding:10px 20px;background-color:#222;color:#fff;border:none;border-radius:8px;font-size:15.4px;font-weight:500;cursor:pointer;transition:all .2s ease;white-space:nowrap}.edit-profile-btn:hover{background-color:#000;transform:translateY(-1px);box-shadow:0 4px 8px #00000026}.profile-meta{display:flex;flex-wrap:wrap;gap:24px;margin-top:8px}.profile-meta-item{display:flex;gap:8px;align-items:baseline}.meta-label{font-weight:600;color:#111;font-size:15.4px}.meta-value{color:#111;font-size:16.5px}.profile-bio{margin-top:8px;padding-top:16px;border-top:1px solid rgba(0,0,0,.08)}.profile-bio p{margin:0;line-height:1.6;color:#111;font-size:16.5px;white-space:pre-wrap}.profile-empty-state{color:#555;font-style:italic;font-size:15.4px;margin:8px 0 0}@media(max-width:768px){.profile-header{padding:24px}.profile-header-content{flex-direction:column;align-items:center;text-align:center}.profile-picture{width:100px;height:100px}.profile-name{font-size:30.8px}.profile-header-row{flex-direction:column;align-items:center}.profile-meta{justify-content:center}}.profile-courses-section{margin-top:24px}.profile-courses-header{font-size:26.4px;font-weight:600;color:#111;margin-bottom:16px}.profile-courses-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}.profile-courses-empty{text-align:center;padding:48px 24px;color:#555;font-style:italic}.teacher-profile-container{max-width:1200px;margin:0 auto;padding:24px}.profile-loading{text-align:center;padding:80px 24px}.loading-spinner{border:4px solid #e5e7eb;border-top:4px solid #333;border-radius:50%;width:50px;height:50px;animation:spin 1s linear infinite;margin:0 auto 16px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.profile-loading p{color:#555;font-size:17.6px}.profile-error{text-align:center;padding:80px 24px}.profile-error h2{color:#d32f2f;margin-bottom:16px}.profile-error p{color:#333;margin-bottom:24px}.retry-btn{padding:12px 24px;background-color:#222;color:#fff;border:none;border-radius:8px;font-size:17.6px;cursor:pointer;transition:all .2s ease}.retry-btn:hover{background-color:#000;transform:translateY(-1px)}.password-modal-overlay{position:fixed;inset:0;background-color:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000;padding:20px}.password-modal-content{background:#fff;border-radius:12px;width:100%;max-width:450px;box-shadow:0 10px 40px #0003}.password-modal-header{display:flex;justify-content:space-between;align-items:center;padding:24px 24px 16px;border-bottom:1px solid #e0e0e0}.password-modal-header h2{margin:0;font-size:22px;color:#2c3e50;font-weight:600}.password-modal-close-btn{background:none;border:none;font-size:30.8px;color:#8b7355;cursor:pointer;padding:0;width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:4px;transition:background-color .2s}.password-modal-close-btn:hover{background-color:beige}.password-change-form{padding:24px}.password-form-group{margin-bottom:16px}.password-form-group label{display:block;margin-bottom:6px;font-weight:500;color:#2c3e50;font-size:15.4px}.password-form-group input{width:100%;padding:10px 12px;border:1px solid #d4c4a8;border-radius:8px;font-size:16.5px;font-family:inherit;transition:border-color .2s,box-shadow .2s}.password-form-group input:focus{outline:none;border-color:#8b7355;box-shadow:0 0 0 3px #8b73551a}.password-form-group input:disabled{background-color:#f5f5f5;cursor:not-allowed}.password-error-message{background-color:#fff5f5;border:1px solid #f5c6cb;color:#d32f2f;padding:10px 12px;border-radius:8px;margin-bottom:12px;font-size:15.4px}.password-success-message{background-color:#e8f5e9;border:1px solid #4caf50;color:#2e7d32;padding:10px 12px;border-radius:8px;margin-bottom:12px;font-size:15.4px}.password-modal-footer{display:flex;gap:12px;justify-content:flex-end;padding-top:16px;border-top:1px solid #e0e0e0}.password-btn-cancel,.password-btn-save{padding:10px 20px;border-radius:8px;font-size:15.4px;font-weight:500;cursor:pointer;transition:all .2s;border:none}.password-btn-cancel{background-color:#f5f5f5;color:#5a5a5a}.password-btn-cancel:hover:not(:disabled){background-color:#e0e0e0}.password-btn-save{background-color:#8b7355;color:#fff}.password-btn-save:hover:not(:disabled){background-color:#6d5a44;transform:translateY(-1px);box-shadow:0 4px 8px #00000026}.password-btn-cancel:disabled,.password-btn-save:disabled{opacity:.6;cursor:not-allowed}.multi-select-dropdown{position:relative;width:100%}.multi-select-label{display:block;margin-bottom:8px;font-weight:500;color:#2c3e50;font-size:15.4px}.multi-select-button{width:100%;padding:10px 12px;border:1px solid #d4c4a8;border-radius:8px;background-color:#fff;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:border-color .2s,box-shadow .2s}.multi-select-button:hover{border-color:#8b7355}.multi-select-text{font-size:16.5px;color:#2c3e50;flex:1;text-align:left}.multi-select-arrow{font-size:13.2px;color:#8b7355;transition:transform .2s}.multi-select-arrow.open{transform:rotate(180deg)}.multi-select-menu{position:absolute;top:calc(100% + 4px);left:0;right:0;background:#fff;border:1px solid #d4c4a8;border-radius:8px;box-shadow:0 4px 12px #00000026;z-index:1000;max-height:300px;overflow:hidden;display:flex;flex-direction:column}.multi-select-actions{display:flex;gap:8px;padding:8px;border-bottom:1px solid #e0e0e0;background-color:#f9f9f9}.multi-select-action-btn{flex:1;padding:6px 12px;background-color:transparent;border:1px solid #d4c4a8;border-radius:6px;font-size:14.3px;color:#8b7355;cursor:pointer;transition:all .2s}.multi-select-action-btn:hover{background-color:#8b7355;color:#fff}.multi-select-options{overflow-y:auto;max-height:240px}.multi-select-option{display:flex;align-items:center;padding:10px 12px;cursor:pointer;transition:background-color .2s;-webkit-user-select:none;user-select:none}.multi-select-option:hover{background-color:beige}.multi-select-option input[type=checkbox]{display:none}.multi-select-checkbox{font-size:19.8px;margin-right:10px;color:#8b7355}.multi-select-option-text{font-size:16.5px;color:#2c3e50}.modal-overlay{position:fixed;inset:0;background-color:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000;padding:20px}.modal-content{background:#fff;border-radius:12px;width:100%;max-width:600px;max-height:90vh;overflow-y:auto;box-shadow:0 10px 40px #0003}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:24px 24px 16px;border-bottom:1px solid #e0e0e0}.modal-header h2{margin:0;font-size:26.4px;color:#2c3e50;font-weight:600}.modal-close-btn{background:none;border:none;font-size:35.2px;color:#8b7355;cursor:pointer;padding:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:4px;transition:background-color .2s}.modal-close-btn:hover{background-color:beige}.edit-profile-form{padding:24px}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;font-weight:500;color:#2c3e50;font-size:15.4px}.form-group input,.form-group textarea,.form-group select{width:100%;padding:10px 12px;border:1px solid #d4c4a8;border-radius:8px;font-size:16.5px;font-family:inherit;transition:border-color .2s,box-shadow .2s}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:#8b7355;box-shadow:0 0 0 3px #8b73551a}.readonly-field{background-color:#f5f5f5;color:#888;cursor:not-allowed}.multi-select{min-height:120px}.multi-select option{padding:8px;cursor:pointer}.multi-select option:hover{background-color:beige}.field-hint{display:block;margin-top:6px;font-size:14.3px;color:#8b7355;font-style:italic}.btn-upload-picture{display:inline-block;padding:9px 18px;background-color:transparent;color:#8b7355;border:1px solid #8b7355;border-radius:8px;font-size:15.4px;font-weight:500;cursor:pointer;transition:all .2s;font-family:inherit}.btn-upload-picture:hover{background-color:#8b7355;color:#fff}.change-password-btn{padding:10px 16px;background-color:transparent;color:#8b7355;border:1px solid #8b7355;border-radius:8px;font-size:15.4px;cursor:pointer;transition:all .2s;font-weight:500}.change-password-btn:hover{background-color:#8b7355;color:#fff}.password-hint{margin-top:10px;padding:10px;background-color:#fff5f0;border-left:3px solid #8b7355;border-radius:4px}.error-message{background-color:#fff5f5;border:1px solid #f5c6cb;color:#d32f2f;padding:12px;border-radius:8px;margin-bottom:16px;font-size:15.4px}.modal-footer{display:flex;gap:12px;justify-content:flex-end;padding-top:20px;border-top:1px solid #e0e0e0}.btn-cancel,.btn-save{padding:10px 24px;border-radius:8px;font-size:16.5px;font-weight:500;cursor:pointer;transition:all .2s;border:none}.btn-cancel{background-color:#f5f5f5;color:#5a5a5a}.btn-cancel:hover:not(:disabled){background-color:#e0e0e0}.btn-save{background-color:#8b7355;color:#fff}.btn-save:hover:not(:disabled){background-color:#6d5a44;transform:translateY(-1px);box-shadow:0 4px 8px #00000026}.btn-cancel:disabled,.btn-save:disabled{opacity:.6;cursor:not-allowed}@media(max-width:768px){.modal-content{max-width:100%;margin:0;border-radius:0;max-height:100vh}.modal-overlay{padding:0}}
