@import"https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap";@import"https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap";:root{--toastify-color-light: #fff;--toastify-color-dark: #121212;--toastify-color-info: #3498db;--toastify-color-success: #07bc0c;--toastify-color-warning: #f1c40f;--toastify-color-error: hsl(6, 78%, 57%);--toastify-color-transparent: rgba(255, 255, 255, .7);--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 rgba(0, 0, 0, .1);--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(to right, #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: .2}.Toastify__toast-container{z-index:var(--toastify-z-index);-webkit-transform:translate3d(0,0,var(--toastify-z-index));position:fixed;width:var(--toastify-container-width);box-sizing:border-box;color:#fff;display:flex;flex-direction:column}.Toastify__toast-container--top-left{top:var(--toastify-toast-top);left:var(--toastify-toast-left)}.Toastify__toast-container--top-center{top:var(--toastify-toast-top);left:50%;transform:translate(-50%);align-items:center}.Toastify__toast-container--top-right{top:var(--toastify-toast-top);right:var(--toastify-toast-right);align-items:end}.Toastify__toast-container--bottom-left{bottom:var(--toastify-toast-bottom);left:var(--toastify-toast-left)}.Toastify__toast-container--bottom-center{bottom:var(--toastify-toast-bottom);left:50%;transform:translate(-50%);align-items:center}.Toastify__toast-container--bottom-right{bottom:var(--toastify-toast-bottom);right:var(--toastify-toast-right);align-items:end}.Toastify__toast{--y: 0;position:relative;touch-action:none;width:var(--toastify-toast-width);min-height:var(--toastify-toast-min-height);box-sizing:border-box;margin-bottom:1rem;padding:var(--toastify-toast-padding);border-radius:var(--toastify-toast-bd-radius);box-shadow:var(--toastify-toast-shadow);max-height:var(--toastify-toast-max-height);font-family:var(--toastify-font-family);z-index:0;display:flex;flex:1 auto;align-items:center;word-break:break-word}@media only screen and (max-width:480px){.Toastify__toast-container{width:100vw;left:env(safe-area-inset-left);margin:0}.Toastify__toast-container--top-left,.Toastify__toast-container--top-center,.Toastify__toast-container--top-right{top:env(safe-area-inset-top);transform:translate(0)}.Toastify__toast-container--bottom-left,.Toastify__toast-container--bottom-center,.Toastify__toast-container--bottom-right{bottom:env(safe-area-inset-bottom);transform:translate(0)}.Toastify__toast-container--rtl{right:env(safe-area-inset-right);left:initial}.Toastify__toast{--toastify-toast-width: 100%;margin-bottom:0;border-radius:0}}.Toastify__toast-container[data-stacked=true]{width:var(--toastify-toast-width)}.Toastify__toast--stacked{position:absolute;width:100%;transform:translate3d(0,var(--y),0) scale(var(--s));transition:transform .3s}.Toastify__toast--stacked[data-collapsed] .Toastify__toast-body,.Toastify__toast--stacked[data-collapsed] .Toastify__close-button{transition:opacity .1s}.Toastify__toast--stacked[data-collapsed=false]{overflow:visible}.Toastify__toast--stacked[data-collapsed=true]:not(:last-child)>*{opacity:0}.Toastify__toast--stacked:after{content:"";position:absolute;left:0;right:0;height:calc(var(--g) * 1px);bottom:100%}.Toastify__toast--stacked[data-pos=top]{top:0}.Toastify__toast--stacked[data-pos=bot]{bottom:0}.Toastify__toast--stacked[data-pos=bot].Toastify__toast--stacked:before{transform-origin:top}.Toastify__toast--stacked[data-pos=top].Toastify__toast--stacked:before{transform-origin:bottom}.Toastify__toast--stacked:before{content:"";position:absolute;left:0;right:0;bottom:0;height:100%;transform:scaleY(3);z-index:-1}.Toastify__toast--rtl{direction:rtl}.Toastify__toast--close-on-click{cursor:pointer}.Toastify__toast-icon{margin-inline-end:10px;width:22px;flex-shrink:0;display:flex}.Toastify--animate{animation-fill-mode:both;animation-duration:.5s}.Toastify--animate-icon{animation-fill-mode:both;animation-duration:.3s}.Toastify__toast-theme--dark{background:var(--toastify-color-dark);color:var(--toastify-text-color-dark)}.Toastify__toast-theme--light,.Toastify__toast-theme--colored.Toastify__toast--default{background:var(--toastify-color-light);color:var(--toastify-text-color-light)}.Toastify__toast-theme--colored.Toastify__toast--info{color:var(--toastify-text-color-info);background:var(--toastify-color-info)}.Toastify__toast-theme--colored.Toastify__toast--success{color:var(--toastify-text-color-success);background:var(--toastify-color-success)}.Toastify__toast-theme--colored.Toastify__toast--warning{color:var(--toastify-text-color-warning);background:var(--toastify-color-warning)}.Toastify__toast-theme--colored.Toastify__toast--error{color:var(--toastify-text-color-error);background:var(--toastify-color-error)}.Toastify__progress-bar-theme--light{background:var(--toastify-color-progress-light)}.Toastify__progress-bar-theme--dark{background:var(--toastify-color-progress-dark)}.Toastify__progress-bar--info{background:var(--toastify-color-progress-info)}.Toastify__progress-bar--success{background:var(--toastify-color-progress-success)}.Toastify__progress-bar--warning{background:var(--toastify-color-progress-warning)}.Toastify__progress-bar--error{background:var(--toastify-color-progress-error)}.Toastify__progress-bar-theme--colored.Toastify__progress-bar--info,.Toastify__progress-bar-theme--colored.Toastify__progress-bar--success,.Toastify__progress-bar-theme--colored.Toastify__progress-bar--warning,.Toastify__progress-bar-theme--colored.Toastify__progress-bar--error{background:var(--toastify-color-transparent)}.Toastify__close-button{color:#fff;position:absolute;top:6px;right:6px;background:transparent;outline:none;border:none;padding:0;cursor:pointer;opacity:.7;transition:.3s ease;z-index:1}.Toastify__toast--rtl .Toastify__close-button{left:6px;right:unset}.Toastify__close-button--light{color:#000;opacity:.3}.Toastify__close-button>svg{fill:currentColor;height:16px;width:14px}.Toastify__close-button:hover,.Toastify__close-button:focus{opacity:1}@keyframes Toastify__trackProgress{0%{transform:scaleX(1)}to{transform:scaleX(0)}}.Toastify__progress-bar{position:absolute;bottom:0;left:0;width:100%;height:100%;z-index:1;opacity:.7;transform-origin:left}.Toastify__progress-bar--animated{animation:Toastify__trackProgress linear 1 forwards}.Toastify__progress-bar--controlled{transition:transform .2s}.Toastify__progress-bar--rtl{right:0;left:initial;transform-origin:right;border-bottom-left-radius:initial}.Toastify__progress-bar--wrp{position:absolute;overflow:hidden;bottom:0;left:0;width:100%;height:5px;border-bottom-left-radius:var(--toastify-toast-bd-radius);border-bottom-right-radius:var(--toastify-toast-bd-radius)}.Toastify__progress-bar--wrp[data-hidden=true]{opacity:0}.Toastify__progress-bar--bg{opacity:var(--toastify-color-progress-bgo);width:100%;height:100%}.Toastify__spinner{width:20px;height:20px;box-sizing:border-box;border:2px solid;border-radius:100%;border-color:var(--toastify-spinner-color-empty-area);border-right-color:var(--toastify-spinner-color);animation:Toastify__spin .65s linear infinite}@keyframes Toastify__bounceInRight{0%,60%,75%,90%,to{animation-timing-function:cubic-bezier(.215,.61,.355,1)}0%{opacity:0;transform:translate3d(3000px,0,0)}60%{opacity:1;transform:translate3d(-25px,0,0)}75%{transform:translate3d(10px,0,0)}90%{transform:translate3d(-5px,0,0)}to{transform:none}}@keyframes Toastify__bounceOutRight{20%{opacity:1;transform:translate3d(-20px,var(--y),0)}to{opacity:0;transform:translate3d(2000px,var(--y),0)}}@keyframes Toastify__bounceInLeft{0%,60%,75%,90%,to{animation-timing-function:cubic-bezier(.215,.61,.355,1)}0%{opacity:0;transform:translate3d(-3000px,0,0)}60%{opacity:1;transform:translate3d(25px,0,0)}75%{transform:translate3d(-10px,0,0)}90%{transform:translate3d(5px,0,0)}to{transform:none}}@keyframes Toastify__bounceOutLeft{20%{opacity:1;transform:translate3d(20px,var(--y),0)}to{opacity:0;transform:translate3d(-2000px,var(--y),0)}}@keyframes 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) + 20px),0)}to{opacity:0;transform:translate3d(0,2000px,0)}}.Toastify__bounce-enter--top-left,.Toastify__bounce-enter--bottom-left{animation-name:Toastify__bounceInLeft}.Toastify__bounce-enter--top-right,.Toastify__bounce-enter--bottom-right{animation-name:Toastify__bounceInRight}.Toastify__bounce-enter--top-center{animation-name:Toastify__bounceInDown}.Toastify__bounce-enter--bottom-center{animation-name:Toastify__bounceInUp}.Toastify__bounce-exit--top-left,.Toastify__bounce-exit--bottom-left{animation-name:Toastify__bounceOutLeft}.Toastify__bounce-exit--top-right,.Toastify__bounce-exit--bottom-right{animation-name:Toastify__bounceOutRight}.Toastify__bounce-exit--top-center{animation-name:Toastify__bounceOutUp}.Toastify__bounce-exit--bottom-center{animation-name:Toastify__bounceOutDown}@keyframes Toastify__zoomIn{0%{opacity:0;transform:scale3d(.3,.3,.3)}50%{opacity:1}}@keyframes Toastify__zoomOut{0%{opacity:1}50%{opacity:0;transform:translate3d(0,var(--y),0) 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%{transform:perspective(400px) rotateX(90deg);animation-timing-function:ease-in;opacity:0}40%{transform:perspective(400px) rotateX(-20deg);animation-timing-function:ease-in}60%{transform:perspective(400px) rotateX(10deg);opacity:1}80%{transform:perspective(400px) rotateX(-5deg)}to{transform:perspective(400px)}}@keyframes Toastify__flipOut{0%{transform:translate3d(0,var(--y),0) perspective(400px)}30%{transform:translate3d(0,var(--y),0) perspective(400px) rotateX(-20deg);opacity:1}to{transform:translate3d(0,var(--y),0) perspective(400px) rotateX(90deg);opacity:0}}.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{visibility:hidden;transform:translate3d(110%,var(--y),0)}}@keyframes Toastify__slideOutLeft{0%{transform:translate3d(0,var(--y),0)}to{visibility:hidden;transform:translate3d(-110%,var(--y),0)}}@keyframes Toastify__slideOutDown{0%{transform:translate3d(0,var(--y),0)}to{visibility:hidden;transform:translate3d(0,500px,0)}}@keyframes Toastify__slideOutUp{0%{transform:translate3d(0,var(--y),0)}to{visibility:hidden;transform:translate3d(0,-500px,0)}}.Toastify__slide-enter--top-left,.Toastify__slide-enter--bottom-left{animation-name:Toastify__slideInLeft}.Toastify__slide-enter--top-right,.Toastify__slide-enter--bottom-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--top-left,.Toastify__slide-exit--bottom-left{animation-name:Toastify__slideOutLeft;animation-timing-function:ease-in;animation-duration:.3s}.Toastify__slide-exit--top-right,.Toastify__slide-exit--bottom-right{animation-name:Toastify__slideOutRight;animation-timing-function:ease-in;animation-duration:.3s}.Toastify__slide-exit--top-center{animation-name:Toastify__slideOutUp;animation-timing-function:ease-in;animation-duration:.3s}.Toastify__slide-exit--bottom-center{animation-name:Toastify__slideOutDown;animation-timing-function:ease-in;animation-duration:.3s}@keyframes Toastify__spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}html,body{width:100%;height:100%}.landing-container{display:flex;align-items:center;justify-content:center;width:100%;height:100vh;background-color:#f8f9fa;color:#1e293b;text-align:center;font-family:Poppins,sans-serif}.landing-content{max-width:600px;padding:20px;margin-bottom:250px}.landing-title{font-size:3rem;font-weight:700;margin-bottom:20px;color:#1e293b;letter-spacing:2px;animation:fadeIn 1s ease-in-out}.landing-subtext{font-size:1.2rem;margin-bottom:30px;color:#64748b;opacity:.9;animation:fadeIn 1.5s ease-in-out}.glow-button{position:relative;padding:14px 36px;font-size:1.125rem;font-weight:700;color:#fff;background:#6366f1;border:2px solid #6366f1;border-radius:50px;box-shadow:0 0 10px #6366f180;text-transform:uppercase;letter-spacing:1px;cursor:pointer;transition:all .3s ease-in-out;overflow:hidden}.glow-button:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:#6366f14d;transform:scale(0);transition:transform .4s ease-in-out;border-radius:50px;opacity:.4}.glow-button:hover{color:#fff;background:#4f46e5;transform:scale(1.05);box-shadow:0 0 20px #6366f1cc}.glow-button:hover:before{transform:scale(1)}.fade-in-button{opacity:0;transform:translateY(10px);animation:fadeIn 2s ease-in-out forwards}@media(max-width:768px){.landing-title{font-size:2.5rem}.landing-subtext{font-size:1rem}.glow-button{padding:12px 28px;font-size:1rem}}.login-container{display:flex;justify-content:center;align-items:center;height:100vh;background:#f8f9fa;color:#1e293b}.login-box{background:#fff;padding:40px;border-radius:12px;text-align:center;box-shadow:0 0 15px #0000001a;width:100%;max-width:400px;border:1px solid #e2e8f0;margin-bottom:300px}.login-box h2{font-size:2rem;font-weight:700;color:#1e293b;text-transform:uppercase;letter-spacing:1px;margin-bottom:20px;animation:fadeIn 1s ease-in-out}.login-form{display:flex;flex-direction:column;gap:15px}.login-button{position:relative;padding:14px 36px;font-size:1.125rem;font-weight:700;color:#fff;background:#6366f1;border:2px solid #6366f1;border-radius:50px;box-shadow:0 0 10px #6366f14d;text-transform:uppercase;letter-spacing:1px;cursor:pointer;transition:all .3s ease-in-out;overflow:hidden}.login-button:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:#6366f14d;transform:scale(0);transition:transform .4s ease-in-out;border-radius:50px;opacity:.4}.login-button:hover{color:green;background:green;transform:scale(1.05);box-shadow:0 0 20px #adff2f}.login-button:hover:before{transform:scale(1)}.signup-link{margin-top:15px;font-size:1rem}.signup-link a{color:#6366f1;text-decoration:none;font-weight:700}.signup-link a:hover{text-decoration:underline;color:green}.forgot-password{margin-top:10px;text-align:right}.forgot-password-link{color:#64748b;text-decoration:none;font-size:.9rem;transition:color .3s ease-in-out}.forgot-password-link:hover{color:#6366f1;text-decoration:underline}.register-container{display:flex;justify-content:center;align-items:center;height:100vh;background:#f8f9fa;color:#1e293b}.register-box{background:#fff;padding:40px;border-radius:12px;text-align:center;box-shadow:0 0 15px #0000001a;width:100%;max-width:400px;border:1px solid #e2e8f0;margin-bottom:250px}.register-box h2{font-size:2rem;font-weight:700;color:#1e293b;text-transform:uppercase;letter-spacing:1px;margin-bottom:20px;animation:fadeIn 1s ease-in-out}.register-form{display:flex;flex-direction:column;gap:15px}.input-group{display:flex;align-items:center;background:#f1f5f9;padding:12px;border-radius:8px;border:1px solid #e2e8f0}.input-group input{border:none;background:transparent;color:#1e293b;margin-left:10px;outline:none;flex:1;font-size:1rem}.icon{color:#64748b;font-size:1.2rem}.toggle-password{cursor:pointer;color:#64748b;font-size:1.2rem;margin-left:8px}.role-dropdown-container{transition:margin-bottom .3s ease-in-out;margin-bottom:10px}.role-dropdown-container.expanded{margin-bottom:57px}.role-label{display:flex;align-items:center;gap:10px;font-size:1rem}select{padding:10px;border-radius:5px;background:#f1f5f9;color:#1e293b;border:1px solid #e2e8f0;outline:none;font-size:1rem;cursor:pointer}.register-button{position:relative;padding:14px 36px;font-size:1.125rem;font-weight:700;color:#fff;background:#6366f1;border:2px solid #6366f1;border-radius:50px;box-shadow:0 0 10px #6366f14d;text-transform:uppercase;letter-spacing:1px;cursor:pointer;transition:all .3s ease-in-out;overflow:hidden}.register-button:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:#6366f14d;transform:scale(0);transition:transform .4s ease-in-out;border-radius:50px;opacity:.4}.register-button:hover{color:#000;background:#87ceeb;transform:scale(1.05);box-shadow:0 0 20px #87ceeb}.register-button:hover:before{transform:scale(1)}.login-link{margin-top:15px;font-size:1rem}.login-link a{color:#6366f1;text-decoration:none;font-weight:700}.login-link a:hover{text-decoration:underline;color:green}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}a{text-decoration:none;color:#6366f1}a:hover{color:#fff}.navbar{display:flex;justify-content:space-between;align-items:center;padding:15px 30px;background-color:#1e1e1e;box-shadow:0 4px 8px #0003}.logo{font-size:1.8rem;font-weight:700;color:#6366f1}.nav-links{list-style:none;display:flex;gap:20px;align-items:center}.nav-links li{display:inline}.login-btn,.logout-btn{background-color:#6366f1;color:#121212;padding:10px 16px;border-radius:5px;font-weight:700;transition:.3s;border:none;cursor:pointer}.login-btn:hover,.logout-btn:hover{background-color:#fff;color:#121212}.dashboard{max-width:1000px;margin:40px auto;padding:20px;text-align:center}.guest-section{padding:40px;background:#1e1e1e;border-radius:10px;box-shadow:0 4px 12px #ffffff1a}.guest-section h2{font-size:2rem;color:#6366f1}.guest-content-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;margin-top:20px}.guest-item{background:#2a2a2a;padding:20px;border-radius:10px;box-shadow:0 2px 6px #ffffff1a}.guest-item h3{font-size:1.2rem;margin-bottom:10px;color:#6366f1}.guest-item ul{list-style:none;padding:0}.guest-item li{font-size:1rem;margin:5px 0}.student-section,.teacher-section{background:#1e1e1e;padding:30px;border-radius:10px;box-shadow:0 4px 12px #ffffff1a;margin-top:20px}.student-section h2,.teacher-section h2{color:#6366f1}.student-actions,.teacher-actions{display:flex;justify-content:center;gap:15px;margin-top:20px}.action-btn{display:inline-block;background-color:#6366f1;color:#121212;padding:10px 20px;font-weight:700;border-radius:5px;transition:.3s}.action-btn:hover{background-color:#fff;color:#121212}@media(max-width:768px){.nav-links{flex-direction:column;gap:10px}.student-actions,.teacher-actions{flex-direction:column}}.home-container{max-width:1200px;margin:0 auto;padding:2rem;min-height:calc(100vh - 70px);background:linear-gradient(135deg,#f8f9fa,#fff)}.home-nav{display:flex;justify-content:space-between;align-items:center;margin-bottom:3rem;padding:1rem;background:#fff;border-radius:12px;box-shadow:0 2px 8px #0000001a}.home-nav h1{margin:0;background:linear-gradient(45deg,var(--primary-color),#6366f1);-webkit-background-clip:text;-webkit-text-fill-color:transparent;font-size:2rem;font-weight:700}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem;margin-bottom:3rem}.feature-card{position:relative;background:#fff;border-radius:16px;padding:2rem;text-decoration:none;color:inherit;transition:all .3s ease;border:2px solid transparent;box-shadow:0 4px 6px #0000000d;overflow:hidden}.feature-card:before{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:linear-gradient(90deg,var(--primary-color),#6366f1);transform:scaleX(0);transform-origin:left;transition:transform .3s ease}.feature-card:hover{transform:translateY(-5px);border-color:#6366f11a;box-shadow:0 8px 12px #0000001a}.feature-card:hover:before{transform:scaleX(1)}.feature-card h2{margin:0 0 1rem;color:var(--primary-color);font-size:1.5rem;display:flex;align-items:center;gap:.5rem}.feature-card p{margin:0;color:var(--text-secondary);line-height:1.6}.feature-icon{font-size:2rem;margin-bottom:1rem;color:var(--primary-color);transition:transform .3s ease}.feature-card:hover .feature-icon{transform:scale(1.1)}.quick-stats{background:#fff;border-radius:16px;padding:2rem;box-shadow:0 4px 6px #0000000d}.quick-stats h2{margin:0 0 2rem;color:var(--primary-color);text-align:center;font-size:1.8rem}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:2rem}.stat-card{background:linear-gradient(135deg,#fff,#f8f9fa);border-radius:12px;padding:1.5rem;text-align:center;border:1px solid rgba(99,102,241,.1);transition:transform .3s ease}.stat-card:hover{transform:translateY(-3px)}.stat-card h3{color:var(--text-primary);margin-bottom:1rem;font-size:1.1rem}.progress-circle{width:120px;height:120px;margin:0 auto 1rem;position:relative;background:conic-gradient(var(--primary-color) 270deg,#eee 0deg);border-radius:50%;display:flex;align-items:center;justify-content:center}.progress-circle:before{content:"";position:absolute;width:90px;height:90px;background:#fff;border-radius:50%}.progress-value{position:relative;font-size:1.8rem;font-weight:700;color:var(--primary-color)}.stat-value{font-size:2.5rem;font-weight:700;color:var(--primary-color);margin-bottom:.5rem;background:linear-gradient(45deg,var(--primary-color),#6366f1);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.nav-buttons{display:flex;gap:1rem;align-items:center}.init-db-btn{display:flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background-color:var(--primary-color);color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:1rem;transition:background-color .3s ease}.init-db-btn:hover:not(:disabled){background-color:var(--primary-dark)}.init-db-btn:disabled{opacity:.7;cursor:not-allowed}.init-message{margin:1rem auto;padding:1rem;border-radius:4px;text-align:center;max-width:600px}.init-message.success{background-color:#e8f5e9;color:#2e7d32;border:1px solid #c8e6c9}.init-message.error{background-color:#ffebee;color:#c62828;border:1px solid #ffcdd2}@media(max-width:768px){.home-container{padding:1rem}.features-grid,.stats-grid{grid-template-columns:1fr}.home-nav{flex-direction:column;text-align:center;gap:1rem}}.performance-insights{margin:2rem 0;padding:2rem;background:#fff;border-radius:12px;box-shadow:0 2px 4px #0000001a}.insight-card{margin:1.5rem 0;padding:1.5rem;border-radius:8px;background:#f8f9fa}.insight-card.warning{background:#fff3e0;border-left:4px solid #f57c00}.insight-card.success{background:#e8f5e9;border-left:4px solid #2e7d32}.insight-header{display:flex;align-items:center;gap:.75rem;margin-bottom:1rem}.insight-header svg{font-size:1.5rem;color:#f57c00}.insight-card.success .insight-header svg{color:#2e7d32}.topics-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1rem;margin-top:1rem}.topic-card{background:#fff;padding:1.5rem;border-radius:8px;box-shadow:0 2px 4px #0000000d}.topic-card h4{margin:0 0 1rem;color:#2c3e50}.topic-stats{display:flex;justify-content:space-between;margin-bottom:1rem;font-size:.9rem;color:#666}.topic-card p{margin:.5rem 0;color:#666;font-size:.9rem}.practice-button{display:flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background:#3498db;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:.9rem;margin-top:1rem;transition:background .3s ease}.practice-button:hover{background:#2980b9}.suggestions-section{margin-top:2rem}.suggestions-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:1.5rem;margin-top:1rem}.suggestion-card{background:#fff;padding:1.5rem;border-radius:8px;box-shadow:0 2px 4px #0000000d}.suggestion-card h4{color:#2c3e50;margin:0 0 1rem;display:flex;align-items:center;gap:.5rem}.suggestion-card ul{list-style:none;padding:0;margin:0}.suggestion-card li{display:flex;justify-content:space-between;align-items:center;padding:.75rem 0;border-bottom:1px solid #eee}.suggestion-card li:last-child{border-bottom:none}.suggestion-card .more-topics{color:#666;font-style:italic;justify-content:center}.start-practice,.continue-practice,.review-subject{padding:.35rem .75rem;border:none;border-radius:4px;cursor:pointer;font-size:.8rem;transition:all .3s ease}.start-practice{background:#4caf50;color:#fff}.continue-practice{background:#ff9800;color:#fff}.review-subject{background:#f44336;color:#fff}.start-practice:hover,.continue-practice:hover,.review-subject:hover{filter:brightness(.9)}.suggestion-text{margin-top:1rem;padding-top:1rem;border-top:1px solid #eee;color:#666;font-size:.9rem}@media(max-width:768px){.performance-insights{padding:1rem}.topics-grid,.suggestions-grid{grid-template-columns:1fr}.suggestion-card li{flex-direction:column;align-items:flex-start;gap:.5rem}.start-practice,.continue-practice,.review-subject{width:100%}}.difficulty-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin-top:1rem}.difficulty-card{padding:1.5rem;border-radius:12px;text-align:center;color:#fff;transition:transform .3s ease;box-shadow:0 4px 6px #0000001a}.difficulty-card:hover{transform:translateY(-5px)}.difficulty-card.easy{background:linear-gradient(135deg,#4caf50,#43a047)}.difficulty-card.medium{background:linear-gradient(135deg,#ffc107,#ffb300)}.difficulty-card.hard{background:linear-gradient(135deg,#f44336,#e53935)}.difficulty-card h3{font-size:1.2rem;margin:0 0 1rem;font-weight:500}.difficulty-card .count{font-size:2.5rem;font-weight:700;margin:.5rem 0}.difficulty-card .label{font-size:.9rem;opacity:.9}.difficulty-card.easy:hover{box-shadow:0 6px 12px #4caf504d}.difficulty-card.medium:hover{box-shadow:0 6px 12px #ffc1074d}.difficulty-card.hard:hover{box-shadow:0 6px 12px #f443364d}.discussion-meta{display:flex;justify-content:space-between;color:#718096;font-size:.875rem;margin-bottom:1rem}.discussion-replies{margin-top:1.5rem;border-top:1px solid #e2e8f0;padding-top:1.5rem}.replies-section h4{color:#2c3e50;margin-bottom:1rem;font-size:1.1rem}.reply-card{background:#f8fafc;padding:1rem;border-radius:8px;margin-bottom:1rem}.reply-content{color:#4a5568;margin-bottom:.5rem;line-height:1.5}.reply-meta{display:flex;justify-content:space-between;color:#718096;font-size:.75rem}.reply-btn{background:#3498db;color:#fff;border:none;padding:.75rem 1.5rem;border-radius:8px;font-size:.9rem;font-weight:500;cursor:pointer;transition:all .3s ease;margin-top:1rem}.reply-btn:hover{background:#2980b9;transform:translateY(-1px)}.reply-form{margin-top:1rem}.reply-form textarea{width:100%;padding:.75rem;border:2px solid #e2e8f0;border-radius:8px;font-size:1rem;color:#2c3e50;transition:all .3s ease;margin-bottom:1rem;resize:vertical}.reply-form textarea:focus{outline:none;border-color:#3498db;box-shadow:0 0 0 2px #3498db33}.reply-actions{display:flex;gap:1rem}.reply-actions button{padding:.75rem 1.5rem;border-radius:8px;font-size:.9rem;font-weight:500;cursor:pointer;transition:all .3s ease}.cancel-btn{background:#e2e8f0;color:#4a5568;border:none}.cancel-btn:hover{background:#cbd5e0}.error-message{background:#fee2e2;color:#b91c1c;padding:1rem;border-radius:8px;margin-bottom:1rem;text-align:center;font-size:.9rem}.discussion-container{display:flex;flex-direction:column;justify-content:center;align-items:center;height:100vh;width:100%;background:#f8fafc;color:#1e293b;padding:20px;overflow:hidden}h2{font-size:2rem;font-weight:700;margin-bottom:20px}.white-background{background-color:#fff!important}.post-list{width:80%;max-width:800px;height:60vh;overflow-y:auto;background:#fff;border-radius:10px;padding:15px;box-shadow:0 0 10px #0000001a}.post{background:#e2e8f0;padding:12px;border-radius:8px;margin-bottom:10px}.post-input{display:flex;flex-direction:column;align-items:center;width:80%;max-width:800px;margin-top:20px}textarea{width:100%;height:100px;border:2px solid #94a3b8;border-radius:8px;padding:10px;font-size:1rem;resize:none;outline:none}.post-btn{margin-top:10px;padding:10px 20px;font-size:1rem;font-weight:700;background:#0f172a;color:#f8fafc;border:2px solid #6366f1;border-radius:8px;cursor:pointer;transition:all .3s ease-in-out}.post-btn:hover{background:#6366f1;box-shadow:0 0 10px #6366f180}.discuss-container{max-width:1200px;margin:0 auto;padding:2rem}.discuss-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:3rem;padding:1rem;background:#fff;border-radius:12px;box-shadow:0 2px 4px #0000001a}.header-content{text-align:left}.toggle-btn{padding:.75rem 1.5rem;border-radius:8px;font-weight:500;cursor:pointer;transition:all .3s ease;background:#3498db;color:#fff;border:none}.toggle-btn.ai-active{background:#2ecc71}.toggle-btn:hover{transform:translateY(-2px);box-shadow:0 4px 6px #0000001a}.ai-chat-container{display:flex;flex-direction:column;height:calc(100vh - 250px);background:#fff;border-radius:12px;box-shadow:0 4px 6px #0000001a;overflow:hidden}.chat-messages{flex:1;overflow-y:auto;padding:1.5rem;display:flex;flex-direction:column;gap:1rem}.message{max-width:80%;padding:1rem;border-radius:12px;margin-bottom:.5rem}.message.user{align-self:flex-end;background:#3498db;color:#fff}.message.assistant{align-self:flex-start;background:#f8f9fa;border:1px solid #e9ecef}.chat-input-form{display:flex;gap:1rem;padding:1rem;background:#f8f9fa;border-top:1px solid #e9ecef}.chat-input-form input{flex:1;padding:.75rem;border:2px solid #e2e8f0;border-radius:8px;font-size:1rem;transition:all .3s ease}.chat-input-form input:focus{outline:none;border-color:#3498db;box-shadow:0 0 0 2px #3498db33}.chat-input-form button{padding:.75rem 1.5rem;background:#3498db;color:#fff;border:none;border-radius:8px;font-weight:500;cursor:pointer;transition:all .3s ease}.chat-input-form button:hover:not(:disabled){background:#2980b9}.chat-input-form button:disabled{background:#cbd5e1;cursor:not-allowed}.discuss-header h1{color:#2c3e50;font-size:2.5rem;margin-bottom:.5rem}.discuss-header p{color:#666;font-size:1.1rem}.new-discussion{background:#fff;padding:2rem;border-radius:12px;box-shadow:0 4px 6px #0000001a;margin-bottom:3rem}.new-discussion h2{color:#2c3e50;margin-bottom:1.5rem;font-size:1.5rem}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;color:#2c3e50;font-weight:500}.form-group input,.form-group select,.form-group textarea{width:100%;padding:.75rem;border:2px solid #e2e8f0;border-radius:8px;font-size:1rem;color:#2c3e50;transition:all .3s ease}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:#3498db;box-shadow:0 0 0 2px #3498db33}.submit-btn{background:#3498db;color:#fff;border:none;padding:1rem 2rem;border-radius:8px;font-size:1rem;font-weight:500;cursor:pointer;transition:all .3s ease}.submit-btn:hover{background:#2980b9;transform:translateY(-2px)}.discussions-list{margin-top:3rem}.discussions-list h2{color:#2c3e50;margin-bottom:1.5rem;font-size:1.5rem}.discussion-card{background:#fff;padding:1.5rem;border-radius:12px;box-shadow:0 2px 4px #0000001a;margin-bottom:1.5rem;transition:all .3s ease}.discussion-card:hover{transform:translateY(-2px);box-shadow:0 4px 6px #0000001a}.discussion-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.discussion-header h3{color:#2c3e50;margin:0;font-size:1.25rem}.subject-tag{background:#e2e8f0;color:#2c3e50;padding:.25rem .75rem;border-radius:999px;font-size:.875rem;font-weight:500}.discussion-content{color:#4a5568;margin-bottom:1rem;line-height:1.6}.discussion-meta{display:flex;justify-content:space-between;color:#718096;font-size:.875rem}.error-message{background:#fee2e2;color:#b91c1c;padding:1rem;border-radius:8px;margin-bottom:1rem;text-align:center}.loading{text-align:center;padding:2rem;color:#2c3e50;font-size:1.1rem}@media(max-width:768px){.discuss-container{padding:1rem}.discuss-header h1{font-size:2rem}.discussion-header{flex-direction:column;align-items:flex-start;gap:.5rem}.subject-tag{align-self:flex-start}}.dashboard-container{padding:2rem;max-width:1400px;margin:0 auto}.dashboard-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:400px}.loading-spinner{width:50px;height:50px;border:4px solid #f3f3f3;border-top:4px solid #3498db;border-radius:50%;animation:spin 1s linear infinite;margin-bottom:1rem}.dashboard-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.dashboard-header h1{font-size:2rem;color:#2c3e50;margin:0}.time-range-selector select{padding:.5rem 1rem;border:2px solid #e0e0e0;border-radius:8px;font-size:1rem;background-color:#fff;cursor:pointer;transition:all .3s ease}.time-range-selector select:hover{border-color:#3498db}.stats-section{background:#fff;padding:2rem;border-radius:12px;box-shadow:0 4px 6px #0000001a;margin-bottom:2.5rem}.stats-section h2{color:#2c3e50;margin:0 0 1.5rem;font-size:1.2rem;font-weight:600}.stats-row{display:flex;justify-content:space-between;gap:1.5rem}.stat-card{flex:1;display:flex;flex-direction:column;align-items:center;padding:1.5rem;background:#f8fafc;border-radius:8px;transition:all .3s ease}.stat-card:hover{transform:translateY(-2px);box-shadow:0 2px 4px #0000001a}.stat-value{font-size:1.75rem;font-weight:600;color:#2c3e50;margin-bottom:.5rem}.charts-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(500px,1fr));gap:2rem;margin-bottom:2rem}.chart-card{background:#fff;padding:1.5rem;border-radius:12px;box-shadow:0 4px 6px #0000001a}.chart-card h2{margin:0 0 1.5rem;color:#2c3e50;font-size:1.3rem}.chart-container{position:relative;height:300px}.radar-container{height:400px}.topic-performance{grid-column:span 2}@media(max-width:1200px){.topic-performance{grid-column:span 1}}.difficulty-stats{display:flex;flex-direction:column;gap:1rem}.difficulty-stat{display:flex;flex-direction:column;gap:.5rem}.difficulty-label{display:flex;align-items:center;gap:.5rem;font-weight:500;color:#2c3e50}.difficulty-icon{font-size:1.2rem}.difficulty-progress{background:#f5f6fa;border-radius:10px;height:24px;overflow:hidden;position:relative}.progress-bar{height:100%;border-radius:10px;transition:width .3s ease;position:relative;display:flex;align-items:center;justify-content:flex-end;padding-right:8px}.progress-value{position:absolute;right:8px;color:#fff;font-size:.75rem;font-weight:500;line-height:24px;text-shadow:0 1px 2px rgba(0,0,0,.1)}.difficulty-stat.easy .progress-bar{background:linear-gradient(135deg,#4caf50,#43a047)}.difficulty-stat.medium .progress-bar{background:linear-gradient(135deg,#ffc107,#ffb300)}.difficulty-stat.hard .progress-bar{background:linear-gradient(135deg,#f44336,#e53935)}.performance-insights{margin-top:2rem}.performance-insights h2{margin:0 0 1.5rem;color:#2c3e50;font-size:1.3rem}.insights-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2.5rem;margin-bottom:3rem}.insight-card{background:#fff;padding:2rem;border-radius:12px;box-shadow:0 4px 6px #0000001a}.insight-card h3{margin:0 0 1.5rem;color:#2c3e50;font-size:1.2rem;font-weight:600}.insight-stats{display:flex;justify-content:space-between;gap:1.5rem;margin-bottom:1.5rem;flex-wrap:wrap}.insight-stat{flex:1;min-width:120px;display:flex;flex-direction:column;gap:.5rem;align-items:center;text-align:center;padding:1rem;background:#f8fafc;border-radius:8px;transition:all .3s ease}.insight-stat:hover{transform:translateY(-2px);box-shadow:0 2px 4px #0000001a}.stat-label{font-size:.9rem;color:#666;font-weight:500}.stat-value{font-size:1.5rem;color:#2c3e50;font-weight:600}.time-text{color:#000!important}.time-info{color:#000;font-size:.9rem;font-weight:500}@media(max-width:640px){.insight-stats{flex-direction:column}.insight-stat{width:100%}}.performance-indicator{height:28px;background:#f5f6fa;border-radius:8px;overflow:hidden;position:relative;margin-top:1rem}.indicator-bar{height:100%;border-radius:8px;transition:width .3s ease;position:relative;display:flex;align-items:center;justify-content:flex-end;padding-right:12px}.indicator-bar:after{content:attr(data-value);color:#fff;font-size:.85rem;font-weight:600;text-shadow:0 1px 2px rgba(0,0,0,.2)}@media(max-width:768px){.dashboard-container{padding:1rem}.dashboard-header{flex-direction:column;gap:1rem;text-align:center}.charts-grid{grid-template-columns:1fr}.chart-container{height:250px}.stats-row{flex-wrap:wrap;gap:1rem}.stat-card{flex:1 1 calc(50% - .5rem);min-width:calc(50% - .5rem)}}@media(max-width:480px){.stat-card{flex:1 1 100%;min-width:100%}}.quiz-container{max-width:1200px;margin:0 auto;padding:2rem;min-height:100vh;background:linear-gradient(135deg,#f8f9fa,#fff)}.quiz-start-container{max-width:800px;margin:2rem auto;padding:2rem;background:#fff;border-radius:12px;box-shadow:0 4px 6px #0000001a}.quiz-start-container h1{text-align:center;color:#2c3e50;margin-bottom:2rem;font-size:2rem}.subject-selection{margin:2rem 0;text-align:center}.subject-selection h2{margin-bottom:1rem;color:#2c3e50}.subject-select{width:300px;padding:12px;font-size:16px;border:2px solid #e0e0e0;border-radius:8px;background-color:#fff;color:#2c3e50;cursor:pointer;appearance:none;-webkit-appearance:none;-moz-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 1rem center;background-size:1em}.subject-select:focus{outline:none;border-color:#3498db;box-shadow:0 0 0 2px #3498db33}.subject-select:hover{border-color:#3498db}.subject-select option{padding:12px;font-size:16px;color:#2c3e50;background-color:#fff}.quiz-settings{display:flex;flex-direction:column;gap:2rem}.setting-group{display:flex;flex-direction:column;gap:1rem}.setting-group h2{color:#2c3e50;font-size:1.2rem;margin:0}.quiz-select{width:100%;padding:12px;font-size:16px;border:2px solid #e0e0e0;border-radius:8px;background-color:#fff;color:#2c3e50;cursor:pointer;-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 1rem center;background-size:1em}.quiz-select:focus{outline:none;border-color:#3498db;box-shadow:0 0 0 2px #3498db33}.number-input-container{display:flex;align-items:center;gap:1rem}.number-input{width:120px;padding:12px;font-size:16px;border:2px solid #e0e0e0;border-radius:8px;color:#2c3e50;-moz-appearance:textfield}.number-input::-webkit-outer-spin-button,.number-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.number-input:focus{outline:none;border-color:#3498db;box-shadow:0 0 0 2px #3498db33}.input-label{color:#666;font-size:.9rem}.start-quiz-btn{margin-top:1rem;padding:1rem 2rem;font-size:1.1rem;background:#3498db;color:#fff;border:none;border-radius:8px;cursor:pointer;transition:all .3s ease}.start-quiz-btn:hover:not(:disabled){background:#2980b9;transform:translateY(-2px)}.start-quiz-btn:disabled{background:#95a5a6;cursor:not-allowed}.quiz-header{background:#fff;padding:1.5rem;border-radius:12px;margin-bottom:2rem;box-shadow:0 2px 4px #0000000d}.quiz-header h2{color:var(--primary-color);margin:0 0 1rem}.quiz-info{display:flex;justify-content:space-between;align-items:center;font-size:1.1rem}.timer{background:#f8f9fa;padding:.5rem 1rem;border-radius:20px;font-weight:700;color:var(--primary-color)}.question-container{background:#fff;padding:2rem;border-radius:12px;margin-bottom:2rem;box-shadow:0 2px 4px #0000000d}.question-text{font-size:1.3rem;margin-bottom:2rem;line-height:1.6;color:var(--text-primary)}.options-container{display:grid;gap:1rem}.option-btn{background:#fff;border:2px solid #e0e0e0;padding:1rem;text-align:left;font-size:1.1rem;border-radius:8px;cursor:pointer;transition:all .3s ease}.option-btn:hover{border-color:var(--primary-color);background:#f8f9fa}.option-btn.selected{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.navigation-buttons{display:flex;justify-content:space-between;margin-bottom:2rem}.nav-btn,.submit-btn{padding:.8rem 2rem;font-size:1.1rem;border-radius:8px;cursor:pointer;transition:all .3s ease}.nav-btn{background:#fff;border:2px solid var(--primary-color);color:var(--primary-color)}.nav-btn:hover:not(:disabled){background:var(--primary-color);color:#fff}.submit-btn{background:#4caf50;color:#fff;border:none}.submit-btn:hover:not(:disabled){background:#45a049;transform:translateY(-2px)}.nav-btn:disabled,.submit-btn:disabled{opacity:.5;cursor:not-allowed}.question-palette{display:grid;grid-template-columns:repeat(auto-fit,minmax(40px,1fr));gap:.5rem;background:#fff;padding:1rem;border-radius:12px;box-shadow:0 2px 4px #0000000d}.palette-btn{width:40px;height:40px;border:2px solid #e0e0e0;border-radius:8px;background:#fff;cursor:pointer;transition:all .3s ease}.palette-btn:hover{border-color:var(--primary-color)}.palette-btn.current{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.palette-btn.answered{background:#e8f5e9;border-color:#4caf50;color:#4caf50}.quiz-completed{max-width:800px;margin:2rem auto;padding:2rem;background:#fff;border-radius:16px;box-shadow:0 4px 6px #0000001a}.quiz-completed h1{color:var(--primary-color);text-align:center;margin-bottom:2rem}.score-display{text-align:center;margin-bottom:3rem;padding:2rem;background:#f8f9fa;border-radius:12px}.score-display h2{color:var(--primary-color);font-size:2rem;margin-bottom:1rem}.question-review{margin-top:2rem}.review-item{padding:1.5rem;margin-bottom:1rem;border-radius:8px;background:#f8f9fa}.review-item.correct{border-left:4px solid #4CAF50}.review-item.incorrect{border-left:4px solid #f44336}.your-answer,.correct-answer{margin-top:.5rem;font-size:.9rem}.your-answer{color:#666}.correct-answer{color:#4caf50;font-weight:700}.restart-quiz-btn{display:block;width:100%;max-width:300px;margin:2rem auto 0;padding:1rem;background:var(--primary-color);color:#fff;border:none;border-radius:8px;font-size:1.1rem;cursor:pointer;transition:all .3s ease}.restart-quiz-btn:hover{transform:translateY(-2px);box-shadow:0 4px 8px #0003}.quiz-loading{display:flex;justify-content:center;align-items:center;min-height:60vh;font-size:1.2rem;color:var(--primary-color)}.error-message{padding:1rem;margin-bottom:1rem;background:#fee2e2;border:1px solid #ef4444;color:#b91c1c;border-radius:8px;text-align:center}.error-message.success{background-color:#e8f5e9;color:#2e7d32;border-color:#c8e6c9}.init-questions-btn{margin-top:1rem;background:#fff;color:var(--primary-color);border:2px solid var(--primary-color);padding:1rem 2rem;font-size:1.1rem;border-radius:8px;cursor:pointer;transition:all .3s ease}.init-questions-btn:hover:not(:disabled){background:var(--primary-color);color:#fff}.init-questions-btn:disabled{opacity:.5;cursor:not-allowed;border-color:#ccc;color:#666}@media(max-width:768px){.quiz-container,.quiz-header{padding:1rem}.quiz-info{flex-direction:column;gap:1rem;align-items:flex-start}.question-container{padding:1.5rem}.navigation-buttons{flex-direction:column;gap:1rem}.nav-btn,.submit-btn{width:100%}.question-palette{grid-template-columns:repeat(5,1fr)}}.main-navigation{background:#fff;box-shadow:0 2px 4px #0000001a;padding:1rem 2rem;position:sticky;top:0;z-index:1000}.nav-container{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;gap:4rem}.nav-logo{font-size:1.5rem;font-weight:700;color:#2c3e50;text-decoration:none;transition:color .2s ease}.nav-logo:hover{color:#3498db}.nav-links{display:flex;gap:2rem;align-items:center}.nav-link{color:#666;text-decoration:none;font-weight:500;padding:.5rem 1rem;border-radius:4px;transition:all .2s ease;display:flex;align-items:center;gap:.5rem}.nav-link svg{font-size:1.2rem}.nav-link:hover{color:#3498db;background:#f8f9fa}.nav-link.active{color:#3498db;background:#ebf5ff}.user-section{display:flex;align-items:center;gap:1rem}.user-info{display:flex;align-items:center;gap:.5rem}.user-avatar-container{position:relative;cursor:pointer}.user-avatar{cursor:pointer;width:32px;height:32px;border-radius:50%;background:#e1e8ed;display:flex;align-items:center;justify-content:center;color:#666;font-weight:500}.user-name{color:#2c3e50;font-weight:500}.logout-button{margin:0 1rem;padding:.5rem 1rem;border:none;border-radius:4px;background:#e74c3c;color:#fff;font-weight:500;cursor:pointer;transition:background .2s ease;display:flex;align-items:center;gap:.5rem}.logout-button:hover{background:#c0392b}.auth-buttons{display:flex;gap:1rem}.login-button,.register-button{padding:.5rem 1rem;border-radius:4px;text-decoration:none;transition:all .2s}.login-button{background:transparent;color:#3498db;border:1px solid #3498db}.login-button:hover{background:#3498db1a}.register-button{background:#3498db;color:#fff;border:1px solid #3498db}.register-button:hover{background:#2e6da4;border-color:#2e6da4}@media(max-width:768px){.main-navigation{padding:1rem}.nav-container{flex-direction:column;gap:1rem}.nav-links{flex-wrap:wrap;justify-content:center;gap:1rem}.user-section{flex-direction:column;align-items:center}.nav-link{font-size:.9rem;padding:.4rem .8rem}.user-info{flex-direction:column;text-align:center}.user-name{font-size:.9rem}}.custom-tooltip{visibility:hidden;position:absolute;top:120%;left:50%;transform:translate(-50%);background-color:#2c3e50;color:#fff;padding:8px 12px;border-radius:6px;font-size:14px;white-space:nowrap;box-shadow:0 2px 5px #0003;z-index:1000;opacity:0;transition:opacity .3s,visibility .3s}.custom-tooltip:before{content:"";position:absolute;bottom:100%;left:50%;transform:translate(-50%);border-width:6px;border-style:solid;border-color:transparent transparent #2c3e50 transparent}.user-avatar-container:hover .custom-tooltip{visibility:visible;opacity:1}.question-attempt-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000}.question-attempt-modal{background:#fff;border-radius:10px;padding:2rem;width:90%;max-width:800px;max-height:90vh;overflow-y:auto;position:relative;box-shadow:0 4px 6px #0000001a}.close-button{position:absolute;top:1rem;right:1rem;background:none;border:none;font-size:1.5rem;cursor:pointer;color:#666;padding:.5rem;line-height:1;border-radius:50%;transition:background-color .3s ease}.close-button:hover{background-color:#f0f0f0}.question-header{display:flex;gap:1rem;margin-bottom:1.5rem;flex-wrap:wrap}.difficulty{padding:.25rem .75rem;border-radius:15px;font-size:.875rem;font-weight:500}.difficulty.easy{background:#e8f5e9;color:#2e7d32}.difficulty.medium{background:#fff3e0;color:#f57c00}.difficulty.hard{background:#ffebee;color:#c62828}.subject,.topic{padding:.25rem .75rem;border-radius:15px;background:#f5f5f5;color:#666;font-size:.875rem}.question-attempt-modal h2{color:#2c3e50;margin-bottom:1rem}.description{color:#666;margin-bottom:1.5rem;line-height:1.5}.question-text{font-size:1.1rem;color:#2c3e50;margin-bottom:2rem;padding:1rem;background:#f8f9fa;border-radius:8px;line-height:1.6}.options-container{display:flex;flex-direction:column;gap:1rem;margin-bottom:2rem}.option-label{display:flex;align-items:center;gap:1rem;padding:1rem;border:1px solid #ddd;border-radius:8px;cursor:pointer;transition:all .3s ease}.option-label:hover{background:#f8f9fa}.option-label input[type=radio]{width:20px;height:20px;margin:0}.option-text{font-size:1rem;color:#2c3e50}.explanation-container{margin-bottom:2rem}.explanation-container label{display:block;margin-bottom:.5rem;color:#666;font-size:.9rem}.explanation-container textarea{width:100%;padding:.75rem;border:1px solid #ddd;border-radius:8px;resize:vertical;font-size:1rem;font-family:inherit}.button-container{display:flex;gap:1rem;justify-content:flex-end}.cancel-button,.submit-button{padding:.75rem 1.5rem;border:none;border-radius:8px;font-size:1rem;font-weight:500;cursor:pointer;transition:all .3s ease}.cancel-button{background:#f8f9fa;color:#666}.cancel-button:hover{background:#e9ecef}.submit-button{background:#3498db;color:#fff}.submit-button:hover{background:#2980b9}.submit-button:disabled,.cancel-button:disabled{opacity:.7;cursor:not-allowed}@media(max-width:768px){.question-attempt-modal{padding:1.5rem;width:95%}.button-container{flex-direction:column}.cancel-button,.submit-button{width:100%}}.problems-container{padding:2rem;max-width:1400px;margin:0 auto}.problems-loading{position:fixed;top:0;left:0;right:0;bottom:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#ffffffe6;z-index:1000}.loading-spinner{border:4px solid #f3f3f3;border-top:4px solid #3498db;border-radius:50%;width:50px;height:50px;animation:spin 1s linear infinite;margin-bottom:1rem}.problems-loading p{color:#2c3e50;font-size:1.2rem;font-weight:500;margin-top:1rem}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.progress-overview{background:#fff;border-radius:10px;padding:1.5rem;margin-bottom:2rem;box-shadow:0 2px 4px #0000001a}.progress-overview h2{margin-bottom:1rem;display:flex;align-items:center;gap:.5rem;color:#2c3e50}.progress-stats{display:grid;grid-template-columns:2fr 1fr;gap:2rem}.progress-bars{display:flex;flex-direction:column;gap:1rem}.progress-item{display:flex;flex-direction:column;gap:.5rem}.progress-item label{font-size:.9rem;color:#666}.progress-bar{height:20px;background:#f0f0f0;border-radius:10px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,#3498db,#2980b9);transition:width .3s ease;display:flex;align-items:center;justify-content:center}.progress-fill.accuracy{background:linear-gradient(90deg,#2ecc71,#27ae60)}.progress-text{color:#000;font-size:.8rem;font-weight:700}.subject-progress{margin-bottom:2rem}.subject-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem;margin-top:1rem}.subject-card{background:#fff;border-radius:10px;padding:1.5rem;box-shadow:0 2px 4px #0000001a}.subject-card h3{margin-bottom:1rem;color:#2c3e50}.subject-stats{display:flex;justify-content:space-between;margin-top:1rem;font-size:.9rem;color:#666}.filters-section{background:#fff;border-radius:10px;padding:1.5rem;margin-bottom:2rem;box-shadow:0 2px 4px #0000001a}.filters-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.reset-filters{padding:.5rem 1rem;background:#e74c3c;color:#fff;border:none;border-radius:5px;cursor:pointer;transition:background .3s ease}.reset-filters:hover{background:#c0392b}.filters-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem}.filter-group,.search-group{display:flex;flex-direction:column;gap:.5rem}.filter-group label,.search-group label{font-size:.9rem;color:#666;display:flex;align-items:center;gap:.5rem}.filter-group select,.search-group input{padding:.5rem;border:1px solid #ddd;border-radius:5px;font-size:.9rem}.problems-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem}.problem-card{background:#fff;border-radius:10px;padding:1.5rem;box-shadow:0 2px 4px #0000001a;transition:transform .2s ease;cursor:pointer}.problem-card:hover{transform:translateY(-2px)}.problem-card.attempted{border-left:4px solid #2ecc71}.problem-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.problem-topic{font-size:.8rem;color:#666;background:#f7f9fc;padding:.25rem .5rem;border-radius:3px}.problem-difficulty{font-size:.8rem;font-weight:700;padding:.25rem .5rem;border-radius:3px}.problem-difficulty.easy{background:#e8f5e9;color:#2e7d32}.problem-difficulty.medium{background:#fff3e0;color:#f57c00}.problem-difficulty.hard{background:#ffebee;color:#c62828}.problem-content{margin-bottom:1rem}.problem-content h3{font-size:1.1rem;color:#2c3e50;margin-bottom:.5rem}.problem-content p{font-size:.9rem;color:#666;line-height:1.4}.problem-footer{display:flex;justify-content:space-between;align-items:center;font-size:.8rem}.problem-subject{color:#666}.problem-status{font-weight:700}.problem-status.attempted{color:#2ecc71}.problem-status.unattempted{color:#95a5a6}.no-problems{grid-column:1 / -1;text-align:center;padding:2rem;background:#fff;border-radius:10px;color:#666}.stat-card{text-align:center}.stat-card h3{margin-bottom:1rem;color:#2c3e50}.circular-progress{width:120px;height:120px;border-radius:50%;background:conic-gradient(#3498db var(--progress),#f0f0f0 0deg);display:flex;align-items:center;justify-content:center;margin:0 auto;position:relative}.circular-progress:before{content:"";position:absolute;width:90px;height:90px;background:#fff;border-radius:50%}.progress-value{position:relative;font-size:1.5rem;font-weight:700;color:#2c3e50}.icon{margin-right:.5rem}.progress-bar{height:100%;display:flex;align-items:center;justify-content:flex-end;padding-right:10px;color:#000;font-weight:500;transition:width .3s ease}.test-room-container{max-width:1000px;margin:2rem auto;padding:1.5rem;background:#fff;border-radius:12px;box-shadow:0 2px 8px #0000001a}.test-header{display:flex;justify-content:space-between;align-items:center;padding-bottom:1.5rem;border-bottom:2px solid #eef2f7;margin-bottom:2rem}.test-title{font-size:1.75rem;font-weight:600;color:#2d3748}.timer{background:#ebf8ff;padding:.75rem 1.5rem;border-radius:8px;color:#2b6cb0;font-weight:600;font-size:1.25rem;display:flex;align-items:center;gap:.5rem}.timer svg{width:20px;height:20px}.questions-container{display:flex;flex-direction:column;gap:2rem}.question-card{background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;padding:1.5rem;transition:all .3s ease}.question-card:hover{box-shadow:0 4px 12px #0000000d;transform:translateY(-2px)}.question-text{font-size:1.125rem;color:#1a202c;margin-bottom:1.5rem;line-height:1.6}.question-type-badge{display:inline-block;padding:.25rem .75rem;border-radius:15px;font-size:.875rem;font-weight:600;margin-bottom:1rem}.question-type-badge.mcq{background-color:#e9d8fd;color:#553c9a}.question-type-badge.nat{background-color:#feebc8;color:#9c4221}.options-grid{display:flex;flex-direction:column;gap:.75rem}.option-item{display:flex;align-items:center;padding:.75rem 1rem;background:#fff;border:1px solid #e2e8f0;border-radius:6px;cursor:pointer;transition:all .2s ease}.option-item:hover{background:#f7fafc;border-color:#cbd5e0}.option-item input[type=radio]{margin-right:1rem}.nat-input{width:100%;padding:.75rem 1rem;border:2px solid #e2e8f0;border-radius:6px;font-size:1rem;transition:all .2s ease}.nat-input:focus{outline:none;border-color:#4299e1;box-shadow:0 0 0 3px #4299e11a}.submit-button{margin-top:2rem;padding:1rem 2rem;background-color:#4299e1;color:#fff;border:none;border-radius:8px;font-size:1.125rem;font-weight:600;cursor:pointer;transition:all .2s ease;width:100%}.submit-button:hover{background-color:#3182ce;transform:translateY(-1px)}.submit-button:active{transform:translateY(0)}.no-test-message{text-align:center;padding:3rem;color:#718096;font-size:1.25rem;background:#f7fafc;border-radius:8px;border:2px dashed #e2e8f0}@media(max-width:768px){.test-room-container{margin:1rem;padding:1rem}.test-header{flex-direction:column;gap:1rem;align-items:flex-start}.timer{width:100%;justify-content:center}}.contest-container{padding:2rem;max-width:1200px;margin:0 auto}.contest-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.contest-title{font-size:2rem;font-weight:700;margin:0 auto}.tests-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1rem}.test-results-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000}.test-results-modal{background:#fff;border-radius:12px;padding:2rem;width:90%;max-width:800px;max-height:90vh;overflow-y:auto;box-shadow:0 4px 20px #00000026}.results-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;padding-bottom:1rem;border-bottom:1px solid #eee}.results-header h2{margin:0;color:#333;font-size:1.5rem}.close-button{background:none;border:none;font-size:1.5rem;color:#666;cursor:pointer;padding:.5rem}.close-button:hover{color:#333}.results-summary{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin-bottom:2rem}.summary-card{background:#f8f9fa;padding:1.5rem;border-radius:10px;display:flex;align-items:center;gap:1rem;box-shadow:0 2px 4px #0000000d}.summary-card .icon{font-size:2rem;color:#4a90e2}.summary-card .stat h3{margin:0;font-size:.9rem;color:#666}.summary-card .stat p{margin:.25rem 0 0;font-size:1.5rem;font-weight:700;color:#333}.user-results{background:#e3f2fd;padding:2rem;border-radius:10px;margin-top:2rem}.user-results h3{margin:0 0 1.5rem;color:#1976d2;font-size:1.2rem}.user-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1.5rem}.user-stat{background:#fff;padding:1rem;border-radius:8px;text-align:center}.user-stat label{display:block;font-size:.9rem;color:#666;margin-bottom:.5rem}.user-stat span{display:block;font-size:1.25rem;font-weight:700;color:#1976d2}.test-card{background:#fff;border-radius:10px;padding:1.5rem;box-shadow:0 2px 4px #0000001a;transition:transform .2s,box-shadow .2s;cursor:pointer}.test-card:hover{transform:translateY(-2px);box-shadow:0 4px 8px #00000026}.test-card.active{border:2px solid #4CAF50}.test-card.upcoming{border:2px solid #2196F3}.test-card.completed{border:2px solid #9E9E9E;opacity:.8}.test-title{font-size:1.25rem;font-weight:700;margin-bottom:1rem;color:#333}.test-time-info{display:flex;align-items:flex-start;gap:1rem;margin-bottom:1rem;padding:1rem;background-color:#00000008;border-radius:8px}.test-time-info .icon{font-size:1.2rem;color:#666;margin-top:4px}.test-performance{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1rem;margin:1rem 0;padding:1rem;background-color:#f8f9fa;border-radius:8px}.performance-stat{display:flex;align-items:center;gap:.5rem;padding:.5rem;background-color:#fff;border-radius:6px;box-shadow:0 2px 4px #0000000d}.performance-stat .icon{font-size:1.2rem;color:#4a90e2}.performance-stat span{font-size:.9rem;color:#333}.user-performance{grid-column:1 / -1;padding:1rem;background-color:#e3f2fd;border-radius:8px;margin-top:.5rem}.user-performance h3{color:#1976d2;margin-bottom:.5rem;font-size:1.1rem}.user-performance p{color:#333;margin:.25rem 0}.test-details{display:flex;flex-direction:column;gap:.5rem}.test-details p{margin:0;color:#666}.time-remaining{color:#2196f3;font-weight:600;margin-top:.5rem}.status-badge{display:inline-block;padding:.25rem .75rem;border-radius:15px;font-size:.875rem;font-weight:600;margin-top:.5rem}.status-badge.active{background-color:#e8f5e9;color:#4caf50}.status-badge.upcoming{background-color:#e3f2fd;color:#2196f3}.status-badge.attempted{background-color:#9c27b0;color:#fff}.test-card.attempted{border:2px solid #9C27B0}.status-badge.completed{background-color:#eee;color:#9e9e9e}.modal{display:flex;justify-content:center;align-items:center;position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;z-index:1000}.modal-content{background-color:#fff;padding:20px;border-radius:5px;box-shadow:0 2px 10px #0000001a}button{margin-top:10px}.test-creation-container{max-width:600px;margin:auto;padding:20px;background:#fff;border-radius:12px;box-shadow:0 6px 12px #0000001a;font-family:Poppins,sans-serif}.test-creation-container h2{text-align:center;color:#333;font-size:22px;margin-bottom:20px}.test-creation-container label{font-weight:600;display:block;margin-top:12px;color:#555}.test-creation-container input,.test-creation-container select{width:100%;padding:10px;margin-top:5px;border:1px solid #ccc;border-radius:8px;font-size:14px;transition:.3s ease-in-out}.test-creation-container input:focus,.test-creation-container select:focus{border-color:#007bff;box-shadow:0 0 6px #007bff33}.test-creation-container button{width:100%;padding:12px;background:linear-gradient(135deg,#007bff,#0056b3);color:#fff;border:none;border-radius:8px;cursor:pointer;font-weight:600;margin-top:18px;transition:all .3s ease-in-out}.test-creation-container button:hover{background:linear-gradient(135deg,#0056b3,#004494)}.test-creation-container input[type=text]{margin-bottom:10px}.test-creation-container select{cursor:pointer}@media(max-width:768px){.test-creation-container{max-width:90%;padding:15px}}*{margin:0;padding:0;box-sizing:border-box;font-family:Poppins,sans-serif}.teacher-home{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#1f2937;padding:2rem;width:100%;height:100vh}.hero-section{text-align:center;max-width:600px}.hero-section h1{font-size:2rem;font-weight:700;margin-bottom:1rem}.hero-section p{font-size:1.125rem;color:#4b5563;margin-bottom:1.5rem}.cta-button{background-color:#2563eb;color:#fff;padding:.75rem 1.5rem;border-radius:.75rem;font-size:1rem;font-weight:600;box-shadow:0 4px 6px #0000001a;transition:background-color .3s ease}.cta-button:hover{background-color:#1e40af}.features-section{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;width:100%;max-width:900px;margin-top:3rem}.feature-card{background-color:#fff;padding:1.5rem;border-radius:.75rem;box-shadow:0 4px 6px #0000001a;text-align:center}.feature-card h2{font-size:1.25rem;font-weight:600;margin-bottom:.5rem}.feature-card p{color:#6b7280}.profile-container{max-width:700px;margin:4rem auto;padding:3rem;background:#fff;border-radius:20px;box-shadow:0 10px 30px #0000001a;font-family:Poppins,sans-serif;animation:fadeIn .5s ease-out;border:1px solid rgba(99,102,241,.1)}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.profile-title{margin-bottom:2.5rem;text-align:center;font-size:2.5rem;font-weight:700;background:linear-gradient(135deg,#6366f1,#8b5cf6);-webkit-background-clip:text;-webkit-text-fill-color:transparent;letter-spacing:-.5px}.profile-section{margin-bottom:2.5rem;background:#f8fafc;padding:1.5rem;border-radius:16px;border:1px solid #e2e8f0;transition:transform .2s ease,box-shadow .2s ease}.profile-section:hover{transform:translateY(-2px);box-shadow:0 4px 12px #0000000d}.profile-section h3{margin-bottom:1.5rem;display:flex;align-items:center;gap:.75rem;color:#1e293b;font-size:1.25rem;font-weight:600}.profile-section h3 svg{color:#6366f1}.profile-form-row{display:flex;gap:1rem}.profile-form-col{display:flex;flex-direction:column;gap:1rem}.profile-input{padding:1rem 1.25rem;border-radius:12px;border:2px solid transparent;background-color:#fff;color:#1e293b;font-size:1rem;font-family:Poppins,sans-serif;transition:all .3s ease;box-shadow:0 2px 4px #00000005}.profile-input:focus{outline:none;border-color:#6366f1;box-shadow:0 0 0 4px #6366f11a}.flex-grow{flex:1}.profile-btn{padding:1rem 2rem;border-radius:50px;border:none;background:linear-gradient(135deg,#6366f1,#4f46e5);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:.75rem;font-size:1rem;font-weight:600;transition:all .3s ease;align-self:flex-start;box-shadow:0 4px 12px #6366f14d;text-transform:uppercase;letter-spacing:.5px}.profile-btn:hover{transform:translateY(-2px);box-shadow:0 6px 16px #6366f166;filter:brightness(1.1)}.profile-btn:disabled{opacity:.7;cursor:not-allowed;transform:none}.profile-divider{border:none;height:1px;background:linear-gradient(90deg,transparent,#e2e8f0,transparent);margin:2.5rem 0}:root{--primary-color: #4a90e2;--primary-dark: #357abd;--danger-color: #dc3545;--danger-dark: #c82333;--text-primary: #333;--text-secondary: #666;--background-light: #f8f9fa;--border-color: #ddd}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;line-height:1.6;background-color:var(--background-light);color:var(--text-primary)}.app-container{margin-top:70px;padding:2rem;min-height:calc(100vh - 70px)}.loading-screen{display:flex;flex-direction:column;justify-content:center;align-items:center;height:100vh;background-color:var(--background-light)}.loader{width:48px;height:48px;border:5px solid var(--border-color);border-bottom-color:var(--primary-color);border-radius:50%;animation:rotation 1s linear infinite;margin-bottom:1rem}@keyframes rotation{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.text-center{text-align:center}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mt-4{margin-top:2rem}.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.mb-4{margin-bottom:2rem}.Toastify__toast{border-radius:8px}.Toastify__toast--success{background:#357c37;color:#fff}.Toastify__toast--error{background:var(--danger-color);color:#fff}@media(max-width:768px){.app-container{padding:1rem}}.btn{padding:.5rem 1rem;border:none;border-radius:4px;cursor:pointer;font-size:1rem;transition:all .2s}.btn-primary{background:var(--primary-color);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-danger{background:var(--danger-color);color:#fff}.btn-danger:hover{background:var(--danger-dark)}.btn-outline{background:transparent;border:1px solid var(--primary-color);color:var(--primary-color)}.btn-outline:hover{background:#4a90e21a}