:root{--toastify-color-light:#fff;--toastify-color-dark:#121212;--toastify-color-info:#3498db;--toastify-color-success:#07bc0c;--toastify-color-warning:#f1c40f;--toastify-color-error:#e74d3c;--toastify-color-transparent:#ffffffb3;--toastify-icon-color-info:var(--toastify-color-info);--toastify-icon-color-success:var(--toastify-color-success);--toastify-icon-color-warning:var(--toastify-color-warning);--toastify-icon-color-error:var(--toastify-color-error);--toastify-container-width:fit-content;--toastify-toast-width:320px;--toastify-toast-offset:16px;--toastify-toast-top:max(var(--toastify-toast-offset),env(safe-area-inset-top));--toastify-toast-right:max(var(--toastify-toast-offset),env(safe-area-inset-right));--toastify-toast-left:max(var(--toastify-toast-offset),env(safe-area-inset-left));--toastify-toast-bottom:max(var(--toastify-toast-offset),env(safe-area-inset-bottom));--toastify-toast-background:#fff;--toastify-toast-padding:14px;--toastify-toast-min-height:64px;--toastify-toast-max-height:800px;--toastify-toast-bd-radius:6px;--toastify-toast-shadow:0px 4px 12px #0000001a;--toastify-font-family:sans-serif;--toastify-z-index:9999;--toastify-text-color-light:#757575;--toastify-text-color-dark:#fff;--toastify-text-color-info:#fff;--toastify-text-color-success:#fff;--toastify-text-color-warning:#fff;--toastify-text-color-error:#fff;--toastify-spinner-color:#616161;--toastify-spinner-color-empty-area:#e0e0e0;--toastify-color-progress-light:linear-gradient(90deg,#4cd964,#5ac8fa,#007aff,#34aadc,#5856d6,#ff2d55);--toastify-color-progress-dark:#bb86fc;--toastify-color-progress-info:var(--toastify-color-info);--toastify-color-progress-success:var(--toastify-color-success);--toastify-color-progress-warning:var(--toastify-color-warning);--toastify-color-progress-error:var(--toastify-color-error);--toastify-color-progress-bgo:0.2}.Toastify__toast-container{box-sizing:border-box;color:#fff;display:flex;flex-direction:column;position:fixed;-webkit-transform:translateZ(9999);-webkit-transform:translateZ(var(--toastify-z-index));width:fit-content;width:var(--toastify-container-width);z-index:9999;z-index:var(--toastify-z-index)}.Toastify__toast-container--top-left{left:max(16px,env(safe-area-inset-left));left:var(--toastify-toast-left);top:max(16px,env(safe-area-inset-top));top:var(--toastify-toast-top)}.Toastify__toast-container--top-center{align-items:center;left:50%;top:max(16px,env(safe-area-inset-top));top:var(--toastify-toast-top);transform:translateX(-50%)}.Toastify__toast-container--top-right{align-items:end;right:max(16px,env(safe-area-inset-right));right:var(--toastify-toast-right);top:max(16px,env(safe-area-inset-top));top:var(--toastify-toast-top)}.Toastify__toast-container--bottom-left{bottom:max(16px,env(safe-area-inset-bottom));bottom:var(--toastify-toast-bottom);left:max(16px,env(safe-area-inset-left));left:var(--toastify-toast-left)}.Toastify__toast-container--bottom-center{align-items:center;bottom:max(16px,env(safe-area-inset-bottom));bottom:var(--toastify-toast-bottom);left:50%;transform:translateX(-50%)}.Toastify__toast-container--bottom-right{align-items:end;bottom:max(16px,env(safe-area-inset-bottom));bottom:var(--toastify-toast-bottom);right:max(16px,env(safe-area-inset-right));right:var(--toastify-toast-right)}.Toastify__toast{--y:0;align-items:center;border-radius:6px;border-radius:var(--toastify-toast-bd-radius);box-shadow:0 4px 12px #0000001a;box-shadow:var(--toastify-toast-shadow);box-sizing:border-box;display:flex;flex:1 1 auto;font-family:sans-serif;font-family:var(--toastify-font-family);margin-bottom:1rem;max-height:800px;max-height:var(--toastify-toast-max-height);min-height:64px;min-height:var(--toastify-toast-min-height);padding:14px;padding:var(--toastify-toast-padding);position:relative;touch-action:none;width:320px;width:var(--toastify-toast-width);word-break:break-word;z-index:0}@media only screen and 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Toastify__bounceInUp{0%,60%,75%,90%,to{animation-timing-function:cubic-bezier(.215,.61,.355,1)}0%{opacity:0;transform:translate3d(0,3000px,0)}60%{opacity:1;transform:translate3d(0,-20px,0)}75%{transform:translate3d(0,10px,0)}90%{transform:translate3d(0,-5px,0)}to{transform:translateZ(0)}}@keyframes Toastify__bounceOutUp{20%{transform:translate3d(0,calc(var(--y) - 10px),0)}40%,45%{opacity:1;transform:translate3d(0,calc(var(--y) + 20px),0)}to{opacity:0;transform:translate3d(0,-2000px,0)}}@keyframes Toastify__bounceInDown{0%,60%,75%,90%,to{animation-timing-function:cubic-bezier(.215,.61,.355,1)}0%{opacity:0;transform:translate3d(0,-3000px,0)}60%{opacity:1;transform:translate3d(0,25px,0)}75%{transform:translate3d(0,-10px,0)}90%{transform:translate3d(0,5px,0)}to{transform:none}}@keyframes Toastify__bounceOutDown{20%{transform:translate3d(0,calc(var(--y) - 10px),0)}40%,45%{opacity:1;transform:translate3d(0,calc(var(--y) + 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scale3d(.3,.3,.3)}to{opacity:0}}.Toastify__zoom-enter{animation-name:Toastify__zoomIn}.Toastify__zoom-exit{animation-name:Toastify__zoomOut}@keyframes Toastify__flipIn{0%{animation-timing-function:ease-in;opacity:0;transform:perspective(400px) rotateX(90deg)}40%{animation-timing-function:ease-in;transform:perspective(400px) rotateX(-20deg)}60%{opacity:1;transform:perspective(400px) rotateX(10deg)}80%{transform:perspective(400px) rotateX(-5deg)}to{transform:perspective(400px)}}@keyframes Toastify__flipOut{0%{transform:translate3d(0,var(--y),0) perspective(400px)}30%{opacity:1;transform:translate3d(0,var(--y),0) perspective(400px) rotateX(-20deg)}to{opacity:0;transform:translate3d(0,var(--y),0) perspective(400px) rotateX(90deg)}}.Toastify__flip-enter{animation-name:Toastify__flipIn}.Toastify__flip-exit{animation-name:Toastify__flipOut}@keyframes Toastify__slideInRight{0%{transform:translate3d(110%,0,0);visibility:visible}to{transform:translate3d(0,var(--y),0)}}@keyframes Toastify__slideInLeft{0%{transform:translate3d(-110%,0,0);visibility:visible}to{transform:translate3d(0,var(--y),0)}}@keyframes Toastify__slideInUp{0%{transform:translate3d(0,110%,0);visibility:visible}to{transform:translate3d(0,var(--y),0)}}@keyframes Toastify__slideInDown{0%{transform:translate3d(0,-110%,0);visibility:visible}to{transform:translate3d(0,var(--y),0)}}@keyframes Toastify__slideOutRight{0%{transform:translate3d(0,var(--y),0)}to{transform:translate3d(110%,var(--y),0);visibility:hidden}}@keyframes Toastify__slideOutLeft{0%{transform:translate3d(0,var(--y),0)}to{transform:translate3d(-110%,var(--y),0);visibility:hidden}}@keyframes Toastify__slideOutDown{0%{transform:translate3d(0,var(--y),0)}to{transform:translate3d(0,500px,0);visibility:hidden}}@keyframes Toastify__slideOutUp{0%{transform:translate3d(0,var(--y),0)}to{transform:translate3d(0,-500px,0);visibility:hidden}}.Toastify__slide-enter--bottom-left,.Toastify__slide-enter--top-left{animation-name:Toastify__slideInLeft}.Toastify__slide-enter--bottom-right,.Toastify__slide-enter--top-right{animation-name:Toastify__slideInRight}.Toastify__slide-enter--top-center{animation-name:Toastify__slideInDown}.Toastify__slide-enter--bottom-center{animation-name:Toastify__slideInUp}.Toastify__slide-exit--bottom-left,.Toastify__slide-exit--top-left{animation-duration:.3s;animation-name:Toastify__slideOutLeft;animation-timing-function:ease-in}.Toastify__slide-exit--bottom-right,.Toastify__slide-exit--top-right{animation-duration:.3s;animation-name:Toastify__slideOutRight;animation-timing-function:ease-in}.Toastify__slide-exit--top-center{animation-duration:.3s;animation-name:Toastify__slideOutUp;animation-timing-function:ease-in}.Toastify__slide-exit--bottom-center{animation-duration:.3s;animation-name:Toastify__slideOutDown;animation-timing-function:ease-in}@keyframes Toastify__spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}:root{--navy-blue:#001f3f;--off-white:#f8f9fa;--light-blue:#007bff;--dark-blue:#002b5c;--gray:#6c757d;--dark-gray:#5a6268;--success-bg:#d4edda;--success-text:#155724;--error-bg:#f8d7da;--error-text:#721c24}body{background-color:#f8f9fa;background-color:var(--off-white);font-family:Arial,sans-serif;font-size:16px}.container{margin:0 auto;padding:20px;width:80%}.page-wrapper{display:flex;flex-direction:column;min-height:100vh;padding:20px}h1,h2,h3,h4,h5,h6{color:#001f3f;color:var(--navy-blue);font-weight:700}h2{font-size:1.8rem}h3{font-size:1.5rem}h4{font-size:1.4rem}.page-title{font-size:2rem;margin-bottom:20px}p{color:#555;font-size:1rem}.empty-message{color:#888;font-size:1.2rem}.button{border:none;border-radius:5px;cursor:pointer;font-size:16px;padding:10px 20px;transition:background-color .3s ease}.button-primary{background-color:#001f3f;background-color:var(--navy-blue);color:#fff}.button-primary:hover{background-color:#002b5c;background-color:var(--dark-blue)}.button-secondary{background-color:#6c757d;background-color:var(--gray);color:#fff}.button-secondary:hover{background-color:#5a6268;background-color:var(--dark-gray)}.input,.submission-textarea,.textarea{border:1px solid #ddd;border-radius:5px;font-size:16px;margin-bottom:10px;padding:10px;width:100%}.input:focus,.submission-textarea:focus,.textarea:focus{border-color:#007bff;border-color:var(--light-blue);outline:none}.form-group{margin-bottom:20px}.form-group label{display:block;font-weight:700;margin-bottom:5px}.card{background-color:#fff;border:1px solid #001f3f;border:1px solid var(--navy-blue);border-radius:8px;box-shadow:0 0 10px #0000001a;padding:15px}.card-header{font-size:1.2rem;font-weight:700;margin-bottom:10px}.card-body{font-size:1rem;margin-bottom:10px}.assignment-item{margin-bottom:20px;padding:20px}ul{list-style-type:none}li{margin-bottom:15px}.assignment-list{padding:0}.course-grid{grid-gap:20px;display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));margin-top:20px}.flex{display:flex}.flex-column{flex-direction:column}.flex-row{flex-direction:row}.justify-center{justify-content:center}.align-center{align-items:center}.align-start{align-items:flex-start}.feedback-message{border-radius:5px;margin-bottom:20px;padding:10px}.feedback-message.success{background-color:#d4edda;background-color:var(--success-bg);color:#155724;color:var(--success-text)}.feedback-message.error{background-color:#f8d7da;background-color:var(--error-bg);color:#721c24;color:var(--error-text)}.error-message{color:#721c24;color:var(--error-text);font-size:1.2rem}.loader{animation:spin 1s linear infinite;border:5px solid #0000;border-radius:50%;border-top-color:#007bff;border-top:5px solid var(--light-blue);display:block;height:40px;margin:20px auto;width:40px}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.enroll-form{border-top:1px solid #eee;margin-top:15px;padding-top:15px}.enroll-form select{border:1px solid #ddd;border-radius:4px;margin-bottom:10px;padding:8px;width:100%}.dashboard-layout{display:grid;grid-template-columns:250px 1fr;min-height:100vh}.sidebar{background-color:#001f3f;background-color:var(--navy-blue);color:#fff;padding:20px}.sidebar-title{border-bottom:1px solid #fff3;color:#fff;font-size:1.5rem;margin-bottom:30px;padding-bottom:10px}.sidebar-nav{display:flex;flex-direction:column;gap:15px}.nav-link{border-radius:5px;color:#fff;padding:10px;text-decoration:none;transition:background-color .3s ease}.nav-link:hover{background-color:#ffffff1a}.dashboard-main{background-color:#f8f9fa;background-color:var(--off-white);padding:30px}.dashboard-heading{margin-bottom:30px}.analytics-cards{grid-gap:20px;display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}.analytics-card{border-left:4px solid #001f3f;border-left:4px solid var(--navy-blue);box-shadow:0 0 10px #0000001a;padding:20px}.analytics-card,.auth-container{background-color:#fff;border-radius:8px}.auth-container{box-shadow:0 0 20px #0000001a;margin:50px auto;max-width:500px;padding:30px}.auth-title{color:#001f3f;color:var(--navy-blue);margin-bottom:30px;text-align:center}.form-input{border:1px solid #ddd;border-radius:5px;font-size:16px;margin-bottom:15px;padding:12px;width:100%}.form-input:focus{border-color:#001f3f;border-color:var(--navy-blue);outline:none}.course-layout-grid{grid-gap:2rem;display:grid;gap:2rem;grid-template-columns:2fr 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