@import url(https://fonts.googleapis.com/css2?family=Manrope:wght@200..800&display=swap);@import url(https://fonts.googleapis.com/css2?family=Space+Mono:ital,wght@0,400;0,700;1,400;1,700&display=swap);body{font-family:Manrope,sans-serif;background-color:#fcfcf9;color:#333;line-height:1.5;min-height:100vh;margin:0;padding:0;display:flex;align-items:center;justify-content:center;background-size:cover;background-position:center;transition:background-color .3s,color .3s}.sidebar-close-btn{display:none!important}.container{width:100%;max-width:500px;margin:20px;padding:0}.profile-container{display:flex;width:100%;min-height:100vh;max-width:none}.sidebar{width:250px;background-color:rgba(231,231,221,.5);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-right:1px solid rgba(0,0,0,.1);display:flex;flex-direction:column;padding:20px 0;position:fixed;height:100vh;left:0;top:0;z-index:10}.sidebar-header{text-align:center;padding:0 20px 20px;border-bottom:1px solid rgba(0,0,0,.1)}.sidebar-nav{flex:1;display:flex;flex-direction:column;padding:20px 0}.sidebar-nav-item{display:flex;align-items:center;padding:12px 20px;margin:5px 0;background:0 0;border:none;text-align:left;font-family:Manrope,sans-serif;font-size:15px;font-weight:500;color:#666;cursor:pointer;transition:.3s;border-left:3px solid transparent;position:relative;overflow:hidden}.sidebar-nav-item::after{content:'';position:absolute;top:0;left:0;width:0;height:100%;background-color:rgba(255,130,0,.1);z-index:-1;transition:width .3s}.sidebar-nav-item.active::after,.sidebar-nav-item:hover::after{width:100%}.sidebar-nav-item i{margin-right:10px;width:20px;text-align:center}.sidebar-nav-item:hover{background-color:rgba(255,130,0,.1);color:#ff8200}.sidebar-nav-item.active{color:#ff8200;background-color:rgba(255,130,0,.1);border-left:3px solid #ff8200}.sidebar-footer{padding:20px;border-top:1px solid rgba(0,0,0,.1);display:flex;flex-direction:column;gap:15px}.back-link{color:#666;text-decoration:none;font-size:14px;display:block;text-align:center}.back-link:hover{color:#ff8200}.main-content{flex:1;padding:40px 30px 30px;margin-left:250px}.content-header{margin-bottom:30px}.content-header h2{font-size:28px;margin-bottom:5px;color:#333}.content-header p{color:#666;margin:0}.profile-card{margin-bottom:30px;padding:25px}.profile-info{display:flex;align-items:center}.profile-image-container{margin-right:20px}.profile-image-container img{width:80px;height:80px;border-radius:50%;object-fit:cover;border:3px solid #ff8400}.profile-details h3{margin:0 0 2px;font-size:24px;color:#333}.profile-details p{margin:0;color:#666;font-size:16px}.placeholder-card{text-align:center;padding:30px;margin-bottom:30px;background-color:rgba(255,245,223,.5);border:2px dashed rgba(255,130,0,.3)}.placeholder-card h3{color:#ff8200;margin-bottom:10px}.placeholder-card p{color:#666}.card-layout,.card-one{background-color:rgba(231,231,221,.5);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-radius:10px;padding:20px;margin-bottom:20px;transition:background-color .3s}.auth-header{text-align:center;margin-bottom:20px}.logo{width:120px;margin-bottom:15px}.auth-header h2{font-size:24px;font-weight:600;margin-bottom:10px;color:#333}.auth-header p{color:#666;font-size:14px;margin-bottom:0}.form-group{margin-bottom:20px}label{display:block;margin-bottom:8px;font-weight:500;font-size:14px;color:#333}input[type=email],input[type=password],input[type=text]{width:100%;padding:10px 12px;border:1px solid #ddd;border-radius:10px;font-size:14px;background-color:rgba(255,255,255,.9);color:#333;transition:border-color .3s,background-color .3s;box-sizing:border-box;font-family:Manrope,sans-serif}select{width:100%;padding:10px 40px 10px 12px;border:1px solid #ddd;border-radius:10px;font-size:14px;background-color:rgba(255,255,255,.9);color:#333;font-family:Manrope,sans-serif;box-sizing:border-box;cursor:pointer;transition:border-color .3s,background-color .3s,opacity .3s;-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");background-repeat:no-repeat;background-position:right 12px center;background-size:16px}select:disabled{opacity:.6;cursor:not-allowed;background-color:rgba(248,248,248,.9)}input[type=email]:focus,input[type=password]:focus,input[type=text]:focus,select:focus{border-color:#ff8400;outline:0;box-shadow:0 0 0 2px rgba(255,132,0,.2)}#courseUploadForm select{background-color:rgba(255,255,255,.95);backdrop-filter:blur(5px);-webkit-backdrop-filter:blur(5px)}#courseUploadForm .form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px}.btn{background-color:#ff8400;color:#fff;border:none;padding:12px 20px;border-radius:10px;font-size:16px;font-weight:500;cursor:pointer;width:100%;font-family:Manrope,sans-serif;transition:background-color .3s;text-align:center;display:inline-block;margin-top:10px}.btn:hover{background-color:#e67300}.btn-outline{background-color:transparent;border:1px solid #ff8400;color:#ff8400}.btn-outline:hover{background-color:rgba(255,132,0,.1)}.btn-sm{padding:8px 15px;font-size:14px;width:auto}.form-actions{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.remember-me,.terms-agreement{display:flex;align-items:center;font-size:14px}.terms-agreement input[type=checkbox]{position:relative;width:20px;height:20px;margin-right:8px;appearance:none;-webkit-appearance:none;border:2px solid #ddd;border-radius:50%;background-color:#fff;cursor:pointer;transition:.3s cubic-bezier(.4, 0, .2, 1);flex-shrink:0}.terms-agreement input[type=checkbox]:hover{border-color:#ff8200;transform:scale(1.05)}.terms-agreement input[type=checkbox]:checked{background-color:#ff8200;border-color:#ff8200;transform:scale(1)}.terms-agreement input[type=checkbox]:checked::after{content:'✓';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(0);color:#fff;font-size:12px;font-weight:700;animation:.3s cubic-bezier(.4,0,.2,1) .1s forwards checkmark-appear}@keyframes checkmark-appear{0%{transform:translate(-50%,-50%) scale(0) rotate(-45deg);opacity:0}50%{transform:translate(-50%,-50%) scale(1.2) rotate(0);opacity:1}100%{transform:translate(-50%,-50%) scale(1) rotate(0);opacity:1}}.terms-agreement input[type=checkbox]:focus{outline:0;box-shadow:0 0 0 3px rgba(255,130,0,.2)}body.dark-mode .terms-agreement input[type=checkbox]{border-color:#555;background-color:#333}body.dark-mode .terms-agreement input[type=checkbox]:hover{border-color:#ff8200}body.dark-mode .terms-agreement input[type=checkbox]:checked{background-color:#ff8200;border-color:#ff8200}.remember-me input,.terms-agreement input{margin-right:8px}.profile-picture-input{display:flex;flex-direction:column;align-items:center}.profile-picture-preview{display:flex;flex-direction:column;align-items:center;margin-bottom:10px}#picturePreview{width:100px;height:100px;border-radius:50%;object-fit:cover;border:3px solid #ff8400;margin-bottom:10px}.profile-picture-input.horizontal{display:flex;flex-direction:row;align-items:center;gap:20px;margin-bottom:15px}.profile-picture-input.horizontal .profile-picture-preview{margin-bottom:0}.profile-picture-input.horizontal .picture-actions{display:flex;flex-direction:column;justify-content:center}.profile-picture-input.horizontal #picturePreview{margin-bottom:0}.tabs{display:flex;border-bottom:1px solid #ddd;margin-bottom:20px}.tab-button{padding:10px 15px;background:0 0;border:none;font-family:Manrope,sans-serif;font-size:14px;font-weight:500;color:#666;cursor:pointer;position:relative;transition:color .3s}.tab-button.active{color:#ff8400}.tab-button.active::after{content:'';position:absolute;bottom:-1px;left:0;width:100%;height:3px;background-color:#ff8400}.tab-pane{display:none}.tab-pane.active{display:block;opacity:1;transition:opacity .3s}.notification{position:fixed;top:20px;right:20px;background-color:#fff;border-radius:8px;box-shadow:0 4px 12px rgba(0,0,0,.15);padding:15px;display:flex;align-items:center;justify-content:space-between;max-width:350px;z-index:9999;transform:translateX(120%);transition:transform .3s ease-out;opacity:0}.notification.show{transform:translateX(0);opacity:1}.notification-content{display:flex;align-items:center}.notification-icon{margin-right:12px;font-size:20px}.notification-message{font-size:14px}.notification-close{background:0 0;border:none;font-size:18px;cursor:pointer;color:#999;margin-left:10px}.notification.success .notification-icon:before{content:'\f058';font-family:'Font Awesome 5 Free';font-weight:900;color:#56ca00}.notification.error .notification-icon:before{content:'\f057';font-family:'Font Awesome 5 Free';font-weight:900;color:#ff4c51}.notification.info .notification-icon:before{content:'\f05a';font-family:'Font Awesome 5 Free';font-weight:900;color:#16b1ff}body.dark-mode{background-color:#121212;color:#e0e0e0}body.dark-mode .card-layout,body.dark-mode .card-one{background-color:rgba(30,30,30,.8)}body.dark-mode .sidebar{background-color:rgba(30,30,30,.8);border-right-color:rgba(255,255,255,.1)}body.dark-mode .sidebar-footer,body.dark-mode .sidebar-header{border-color:rgba(255,255,255,.1)}body.dark-mode .sidebar-nav-item{color:#b0b0b0}body.dark-mode .sidebar-nav-item:hover{background-color:rgba(255,130,0,.1);color:#ff8200}body.dark-mode .sidebar-nav-item.active{color:#ff8200;background-color:rgba(255,130,0,.1);border-left-color:#ff8200}body.dark-mode .back-link{color:#b0b0b0}body.dark-mode .back-link:hover{color:#ff8200}body.dark-mode .content-header h2{color:#e0e0e0}body.dark-mode .content-header p{color:#b0b0b0}body.dark-mode .profile-details h3{color:#e0e0e0}body.dark-mode .profile-details p{color:#b0b0b0}body.dark-mode .placeholder-card{background-color:rgba(30,30,30,.5);border-color:rgba(255,130,0,.3)}body.dark-mode .placeholder-card p{color:#b0b0b0}body.dark-mode .auth-header h2{color:#e0e0e0}body.dark-mode .auth-header p{color:#b0b0b0}body.dark-mode label{color:#e0e0e0}body.dark-mode input[type=email],body.dark-mode input[type=password],body.dark-mode input[type=text]{background-color:rgba(50,50,50,.8);color:#e0e0e0;border-color:#444}body.dark-mode select{background-color:rgba(50,50,50,.8);color:#e0e0e0;border-color:#444;background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23e0e0e0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e")}body.dark-mode select:disabled{background-color:rgba(30,30,30,.8);color:#666}body.dark-mode #courseUploadForm select{background-color:rgba(50,50,50,.95);backdrop-filter:blur(5px);-webkit-backdrop-filter:blur(5px)}body.dark-mode .form-footer,body.dark-mode .tab-button{color:#b0b0b0}body.dark-mode .tab-button.active{color:#ff8400}body.dark-mode .notification{background-color:#333;color:#e0e0e0}.recovery-key-display{display:flex;align-items:center;margin:15px 0;background-color:rgba(255,255,255,.7);border-radius:8px;padding:5px;border:1px solid #ddd}.recovery-key-display input{flex:1;border:none;background:0 0;padding:10px;font-family:'Space Mono',monospace;font-size:14px;color:#333}.btn-icon{background:0 0;border:none;color:#666;cursor:pointer;padding:10px;border-radius:5px;transition:.2s}.btn-icon:hover{background-color:rgba(0,0,0,.05);color:#ff8400}.form-help{color:#666;font-size:14px;margin:10px 0}body.dark-mode .recovery-key-display{background-color:rgba(50,50,50,.7);border-color:#444}body.dark-mode .recovery-key-display input{color:#e0e0e0}body.dark-mode .form-help{color:#aaa}body.dark-mode .btn-icon:hover{background-color:rgba(255,255,255,.05)}.form-divider{height:1px;background-color:rgba(0,0,0,.1);margin:25px 0}body.dark-mode .form-divider{background-color:rgba(255,255,255,.1)}.header-actions{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.form-section-title{margin-top:20px;margin-bottom:15px;padding-bottom:10px;border-bottom:1px solid rgba(0,0,0,.1);color:#444;font-size:18px;font-weight:600}.form-section{margin-bottom:25px}.form-section:last-child{margin-bottom:20px}.card-one{margin-bottom:30px}.card-one h3{margin-top:0;font-size:20px;font-weight:600;color:#333}body.dark-mode .card-one h3,body.dark-mode .form-section-title{color:#e0e0e0}@media (max-width:768px){#courseUploadForm .form-row{grid-template-columns:1fr;gap:10px}.profile-picture-input.horizontal .profile-picture-preview{margin-bottom:15px}.profile-container{flex-direction:column}.sidebar{width:100%;height:auto;position:relative;border-right:none;border-bottom:1px solid rgba(0,0,0,.1);padding-bottom:0}.sidebar-nav{flex-direction:row;justify-content:center;padding:10px 0;overflow-x:auto}.sidebar-nav-item{margin:0 5px;padding:8px 15px;border-left:none;border-bottom:3px solid transparent}.sidebar-nav-item.active{border-left:none;border-bottom:3px solid #ff8200}.sidebar-nav-item i{margin-right:5px}.sidebar-footer{padding:10px;flex-direction:row;justify-content:space-between;align-items:center}.main-content{margin-left:0;padding:20px}.profile-info{flex-direction:row;text-align:left;align-items:center}.profile-image-container{margin-right:15px;margin-bottom:0}.profile-image-container img{width:60px;height:60px}.sidebar-nav{flex-wrap:wrap}.sidebar-footer{flex-direction:column!important}.theme-switcher-card{width:100%;margin:10px 0}}.mobile-menu-toggle{display:none;position:fixed;top:15px;left:15px;z-index:1000}#hamburgerButton{background:rgba(231,231,221,.9);border:none;border-radius:50%;width:40px;height:40px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:18px;color:#666;transition:.3s}#hamburgerButton:hover{background-color:rgba(255,130,0,.2);color:#ff8200}body.dark-mode #hamburgerButton{background:rgba(50,50,50,.9);color:#ccc}body.dark-mode #hamburgerButton:hover{background-color:rgba(255,130,0,.2);color:#ff8200}.content-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background-color:rgba(0,0,0,.5);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);z-index:5}@media (max-width:768px){.mobile-menu-toggle{display:block}.sidebar{transform:translateX(-100%);transition:transform .3s;z-index:900;width:250px;height:100vh;position:fixed;overflow-y:auto}.sidebar.open{transform:translateX(0)}.content-overlay.active{display:block}body.sidebar-open .sidebar{flex-direction:column;height:100vh;padding:20px 0}body.sidebar-open .sidebar-nav{flex-direction:column;padding:20px 0}body.sidebar-open .sidebar-nav-item{margin:5px 0;padding:12px 20px;border-left:3px solid transparent;border-bottom:none}body.sidebar-open .sidebar-nav-item.active{border-left:3px solid #ff8200;border-bottom:none}body.sidebar-open .sidebar-footer{flex-direction:column;padding:20px}.main-content{margin-left:0;width:100%;transition:margin-left .3s}}@media (prefers-color-scheme:dark){body:not(.light-mode){background-color:#121212;color:#e0e0e0}body:not(.light-mode) .card-layout,body:not(.light-mode) .card-one{background-color:rgba(30,30,30,.8)}body:not(.light-mode) input[type=email],body:not(.light-mode) input[type=password],body:not(.light-mode) input[type=text]{background-color:rgba(50,50,50,.8);color:#e0e0e0;border-color:#444}body:not(.light-mode):not(.dark-mode) .theme-option[data-theme=system]{background-color:rgba(255,130,0,.2);color:#ff8200;font-weight:700}}.danger-section{background-color:rgba(255,235,235,.9);border-left:4px solid #ff4c51}.danger-warning{display:inline-block;background-color:rgba(255,76,81,.1);border-left:4px solid #ff4c51;padding:10px 15px;margin:15px 0;color:#d63031;font-weight:600;font-size:14px;border-radius:0 4px 4px 0}.danger-list{margin:15px 0;padding-left:20px}.danger-list li{margin-bottom:8px;color:var(--text-primary);position:relative;padding-left:5px}.danger-list li::before{content:"•";color:#ff4c51;font-weight:700;display:inline-block;margin-right:8px}.btn-danger{background-color:#ff4c51;color:#fff;margin-top:20px;border:none;padding:10px 20px;border-radius:8px;font-weight:600;transition:background-color .2s}.btn-danger:hover{background-color:#d63031}body.dark-mode .danger-warning{background-color:rgba(255,76,81,.15);color:#ff6b6e}body.dark-mode .danger-list li{color:var(--text-primary)}body.dark-mode .btn-danger{background-color:#ff4c51}body.dark-mode .btn-danger:hover{background-color:#c42c2c;box-shadow:0 2px 8px rgba(255,76,81,.3)}.card-layout .card-header{display:flex;align-items:center;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--border-color)}.card-layout .card-header h3{margin:0;font-size:18px;font-weight:600;color:var(--text-primary);display:flex;align-items:center}.theme-switcher-card{background-color:rgba(255,255,255,.5);border-radius:50px;padding:5px;margin-top:10px;border:1px solid rgba(0,0,0,.1)}.theme-switcher-card h4{margin:0 0 10px;font-size:14px;color:#666;text-align:center}.theme-options{display:flex;justify-content:space-between;gap:5px}.theme-option{flex:1;display:flex;flex-direction:column;align-items:center;padding:8px 5px;background:0 0;border:1px solid transparent;border-radius:50px;cursor:pointer;transition:.2s}input:-internal-autofill-selected{appearance:menulist-button;background-image:none;background-color:none;color:none}.theme-option i{font-size:16px;margin-bottom:5px;color:#666}.theme-option span{font-size:12px;color:#666}.theme-option:hover{background-color:rgba(255,130,0,.1)}.theme-option.active{background-color:rgba(255,130,0,.2);border-color:#ff8200}.theme-option.active i,.theme-option.active span{color:#ff8200}body.dark-mode .theme-switcher-card{background-color:rgba(50,50,50,.5);border-color:rgba(255,255,255,.1)}body.dark-mode .theme-option i,body.dark-mode .theme-option span,body.dark-mode .theme-switcher-card h4{color:#aaa}body.dark-mode .theme-option:hover{background-color:rgba(255,130,0,.1)}body.dark-mode .theme-option.active{background-color:rgba(255,130,0,.2);border-color:#ff8200}body.dark-mode .theme-option.active i,body.dark-mode .theme-option.active span{color:#ff8200}@media (prefers-color-scheme:light){body:not(.light-mode):not(.dark-mode) .theme-option[data-theme=system]{background-color:rgba(255,130,0,.2);color:#ff8200;font-weight:700}}@media (max-width:768px){.sub-tab-nav{overflow-x:auto;white-space:nowrap;-ms-overflow-style:none;scrollbar-width:none;display:flex;flex-wrap:nowrap;padding-bottom:5px}.sub-tab-nav::-webkit-scrollbar{display:none}.sub-tab-btn{flex:0 0 auto}.files-sub-tabs{overflow:hidden}}