.error-boundary-page{background-color:var(--bg-color, var(--white));color:var(--text-color, var(--dark))}.error-boundary-content{padding:3rem 2rem}.error-boundary-title{font-size:2.5rem;font-weight:600;color:var(--text-dark, var(--dark));margin-bottom:1rem}.error-boundary-message{font-size:1.125rem;color:var(--text-body, var(--body));margin-bottom:2rem}.error-boundary-details{text-align:left;margin-top:2rem;padding:1rem;background-color:var(--bg-secondary, var(--light));border-radius:4px;border:1px solid var(--border-color, var(--outline))}.error-boundary-summary{cursor:pointer;font-weight:600;color:var(--text-dark, var(--dark));margin-bottom:.5rem}.error-boundary-stack{font-size:.875rem;color:var(--text-body, var(--body));white-space:pre-wrap;word-break:break-word;overflow-x:auto;margin:0;padding:1rem;background-color:var(--bg-color, var(--white));border-radius:4px}.error-boundary-actions{display:flex;justify-content:center;gap:1rem;flex-wrap:wrap}@media (max-width: 768px){.error-boundary-title{font-size:2rem}.error-boundary-message{font-size:1rem}}.layout-container{height:100vh;height:100dvh;overflow:hidden}.layout-user{display:flex;flex-direction:column}.layout-admin{display:flex;flex-direction:row}.topbar{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:0 24px;min-height:64px;background-color:var(--light)!important;border-bottom:1px solid var(--outline)!important;flex-shrink:0;z-index:1000}.topbar-left{flex-shrink:0;display:flex;align-items:center}.topbar-burger{display:none;align-items:center;justify-content:center;width:40px;height:40px;padding:0;border:none;background:none;cursor:pointer;color:var(--dark);border-radius:8px;transition:background-color .2s,color .2s}.topbar-burger:hover{background-color:var(--blue-l);color:var(--main)}.topbar-logo{display:flex;align-items:center;gap:10px;cursor:pointer;padding:8px 0;outline:none}.topbar-logo:focus-visible{outline:2px solid var(--main);outline-offset:4px;border-radius:4px}.topbar-logo-image{max-height:40px;max-width:180px;object-fit:contain;display:block}.logo-fallback{display:flex;align-items:center;gap:10px}.logo-icon{width:40px;height:40px;background-color:var(--main)!important;color:var(--white)!important;border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:700!important;font-size:20px!important;flex-shrink:0}.logo-text{font-size:20px!important;font-weight:600!important;color:var(--dark)!important;white-space:nowrap}.topbar-nav{display:flex;align-items:center;gap:4px;flex:1;justify-content:center;min-width:0}.topbar-nav-item{display:flex;align-items:center;gap:10px;padding:10px 16px;border:none;background:none;cursor:pointer;color:var(--body)!important;font-size:15px;font-weight:500;border-radius:8px;transition:all .2s;white-space:nowrap}.topbar-nav-item:hover,.topbar-nav-item.active{background-color:var(--blue-l)!important;color:var(--main)!important}.topbar-nav-icon{width:22px;height:22px;flex-shrink:0;object-fit:contain}.topbar-nav-icon img,.topbar-nav-item img.topbar-nav-icon{width:22px;height:22px}.topbar-nav-label{font-size:15px!important}.topbar-right{flex-shrink:0;display:flex;align-items:center;gap:8px}.topbar-logout{color:var(--red)!important}.topbar-logout:hover{background-color:color-mix(in srgb,var(--red) 10%,transparent)!important;color:var(--red)!important}.topbar-mobile-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background-color:color-mix(in srgb,var(--dark) 40%,transparent);z-index:1001;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease}.topbar-mobile-overlay.open{opacity:1;visibility:visible}.topbar-mobile-menu{display:none;position:fixed;top:0;right:0;bottom:0;width:280px;max-width:85vw;height:100vh;height:100dvh;max-height:100vh;max-height:100dvh;background-color:var(--white);box-shadow:-4px 0 24px color-mix(in srgb,var(--dark) 15%,transparent);z-index:1002;flex-direction:column;transform:translate(100%);transition:transform .3s ease;overflow-y:auto}.topbar-mobile-menu.open{transform:translate(0)}.topbar-mobile-menu-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--outline);flex-shrink:0}.topbar-mobile-menu-title{font-size:18px;font-weight:600;color:var(--dark)}.topbar-mobile-close{display:flex;align-items:center;justify-content:center;width:40px;height:40px;padding:0;border:none;background:none;cursor:pointer;color:var(--body);border-radius:8px;transition:background-color .2s,color .2s}.topbar-mobile-close:hover{background-color:var(--light);color:var(--dark)}.topbar-mobile-nav{flex:1;padding:12px 0;overflow-y:auto}.topbar-mobile-nav-item{display:flex;align-items:center;gap:12px;width:100%;padding:14px 20px;border:none;background:none;cursor:pointer;color:var(--body);font-size:16px;font-weight:500;text-align:left;transition:background-color .2s,color .2s}.topbar-mobile-nav-item:hover,.topbar-mobile-nav-item.active{background-color:var(--blue-l);color:var(--main)}.topbar-mobile-nav-icon{width:24px;height:24px;flex-shrink:0;object-fit:contain}.topbar-mobile-nav-icon svg{width:24px;height:24px}.topbar-mobile-nav-label{font-size:16px}.topbar-mobile-footer{padding:12px 0;border-top:1px solid var(--outline)}.topbar-mobile-logout{color:var(--red)!important}.topbar-mobile-logout:hover{background-color:color-mix(in srgb,var(--red) 10%,transparent)!important;color:var(--red)!important}.sidebar{width:250px;background-color:var(--light)!important;border-right:1px solid var(--outline)!important;display:flex;flex-direction:column;position:fixed;height:100vh;left:0;top:0;z-index:1000;transition:width .3s ease;overflow:visible}.sidebar.collapsed{width:70px}.sidebar-header{padding:20px;border-bottom:1px solid var(--outline)!important;position:relative;display:flex;align-items:center;justify-content:space-between;gap:10px}.sidebar.collapsed .sidebar-header{padding:20px 10px;justify-content:center}.sidebar-toggle{background:none;border:none;cursor:pointer;padding:8px;display:flex;align-items:center;justify-content:center;color:var(--body);border-radius:100px;transition:all .2s;flex-shrink:0}.sidebar-toggle:hover{background-color:var(--blue-l);color:var(--main)}.sidebar.collapsed .sidebar-toggle{position:absolute;right:-27px;background-color:var(--light);border:1px solid var(--outline);box-shadow:0 2px 4px color-mix(in srgb,var(--dark) 10%,transparent);z-index:1001;border-radius:100px}.sidebar .logo{display:flex;align-items:center;gap:10px;flex:1;justify-content:center}.sidebar:not(.collapsed) .logo{justify-content:flex-start}.sidebar .logo-image{max-height:40px;max-width:40px;object-fit:contain;flex-shrink:0}.sidebar:not(.collapsed) .logo-image{max-width:180px}.sidebar.collapsed .logo-text{display:none}.sidebar-nav{flex:1;padding:10px 0;overflow-y:auto;position:relative}.sidebar-footer{padding:10px 0;border-top:1px solid var(--outline)!important;margin-top:auto}.sidebar .nav-item{display:flex;align-items:center;gap:12px;padding:12px 20px;cursor:pointer;transition:all .2s;color:var(--body)!important;position:relative;white-space:nowrap;overflow:visible}.sidebar.collapsed .nav-item{padding:12px;justify-content:center}.sidebar .nav-item:hover{background-color:var(--blue-l)!important}.sidebar .nav-item.active{background-color:var(--blue-l)!important;color:var(--main)!important;font-weight:500!important}.logout-item{color:var(--red)!important}.logout-item:hover{background-color:color-mix(in srgb,var(--red) 10%,transparent)!important;color:var(--red)!important}.sidebar .nav-icon{font-size:20px!important;width:24px;text-align:center;flex-shrink:0}.sidebar .nav-icon img{width:24px;height:24px;object-fit:contain}.sidebar .nav-label{font-size:16px!important;transition:opacity .3s ease;overflow:hidden}.sidebar.collapsed .nav-label{display:none}.sidebar-tooltip{padding:8px 12px;background-color:var(--dark);color:var(--white);border-radius:4px;font-size:14px;font-weight:400;white-space:nowrap;box-shadow:0 2px 8px color-mix(in srgb,var(--dark) 15%,transparent);pointer-events:none}.sidebar-tooltip:before{content:"";position:absolute;right:100%;top:50%;transform:translateY(-50%);border:6px solid transparent;border-right-color:var(--dark)}.main-content{flex:1;display:flex;flex-direction:column;overflow:hidden}.layout-user .main-content{margin-left:0}.main-content-admin{margin-left:250px;transition:margin-left .3s ease}.main-content-admin.sidebar-collapsed{margin-left:70px}.content-area{flex:1;overflow-y:auto;padding:20px;background-color:var(--light)!important}@media (max-width: 1200px){.sidebar-toggle{display:none!important}}@media (max-width: 1024px){.topbar{flex-wrap:wrap;padding:12px 16px;gap:12px}.topbar-nav.topbar-nav-desktop{order:3;width:100%;justify-content:flex-start;overflow-x:auto;padding:4px 0;-webkit-overflow-scrolling:touch}.topbar-nav-item{padding:8px 12px;font-size:14px}.topbar-nav-label{font-size:14px!important}}@media (max-width: 768px){.topbar-burger{display:flex}.topbar-nav.topbar-nav-desktop,.topbar-right .topbar-logout{display:none!important}.topbar-mobile-overlay{display:block}.topbar-mobile-overlay:not(.open){pointer-events:none}.topbar-mobile-menu{display:flex}}@media (max-width: 576px){.topbar{padding:0 12px}.topbar-logo-image{max-width:120px}.layout-user .logo-text{font-size:16px!important}.topbar-mobile-menu{width:260px}}.chart-card{height:auto!important}.performance-container .row.row-eq-height--admin>.performance-chart-col>.chart-card--user-activity{flex:0 0 auto!important;height:auto!important}.chart-card--user-activity{flex:0 0 auto!important;height:auto!important}.chart-card--user-activity .card-body{min-height:220px}@media (min-width: 768px){.row-eq-height{display:flex;flex-wrap:wrap;align-items:stretch}.row-eq-height>.performance-chart-col{display:flex;flex-direction:column;min-height:0}.row-eq-height>.performance-chart-col>.chart-card--match-next:last-child{flex:1 1 auto;min-height:0;display:flex;flex-direction:column}}.chart-card--match-next .card-body.flex-grow-0{flex:0 1 auto}.chart-card--match-next .card-body.admin-questions-chart-body{flex:1;min-height:0;display:flex;flex-direction:column}.chart-card--match-next .card-body.admin-questions-chart-body>div{flex:1;min-height:260px}@media (max-width: 768px){.chart-card--match-next .card-body>div{min-height:200px}.chart-card--match-next .card-body.admin-questions-chart-body>div{min-height:240px}}@media (max-width: 576px){.chart-card--match-next .card-body>div{min-height:180px}.chart-card--match-next .card-body.admin-questions-chart-body>div{min-height:220px}}.empty-state{text-align:center;padding:60px 20px}.empty-state h4{margin-bottom:20px;color:var(--dark)}.empty-state p{margin-bottom:30px;color:var(--body)}.empty-state p.empty-state-info{font-size:14px}.empty-state p.calculating-message{margin-top:20px;font-size:12px}.empty-state button{min-width:200px}.performance-change-positive{color:var(--main)}.performance-change-negative{color:var(--red)}.performance-icon-wrapper.blue{background:var(--main)}.performance-icon-wrapper.pink{background:var(--red)}.performance-icon-wrapper.yellow{background:var(--orange)}.bar-chart-scrollable .bar-chart-wrapper{overflow-x:auto;min-width:0}.bar-chart-scrollable .bar-chart{min-width:max-content}.bar-chart-scrollable .bar-chart-item{flex:0 0 auto;min-width:40px}.grid-line{position:absolute;width:100%;height:1px}.bar{background:var(--main)}.donut-chart-flex-container{display:flex;align-items:center;gap:24px}.donut-chart-container{width:200px;height:200px;flex-shrink:0;margin-bottom:0}.donut-chart svg{width:100%;height:100%}.distribution-dot-container{display:flex;align-items:center;gap:8px}.distribution-dot{width:12px;height:12px;border-radius:100px}.distribution-dot.easy{background:var(--green)}.distribution-dot.mid{background:var(--orange)}.distribution-dot.hard{background:var(--red)}.line-chart-circle,.line-chart-label{cursor:pointer}.chart-overview-tooltip{transform:translate(-50%)}.chart-overview-value.added{color:var(--green)}.chart-overview-value.queue{color:var(--orange)}.legend-dot{border-radius:100%}.legend-dot.added{background:var(--green)}.legend-dot.queue{background:var(--orange)}.timeline-metrics{display:flex;justify-content:space-around;gap:20px}.timeline-metric{flex:1}.timeline-donut-wrapper{margin:0 auto}.difficulty-bar-bg{height:8px;border-radius:4px;overflow:hidden}.difficulty-bar{height:100%;border-radius:0!important}.difficulty-bar.quiz{background:var(--body)}.difficulty-bar.sectional{background:var(--orange)}.difficulty-bar.full-length{background:var(--green)}.skeleton-card{animation:skeleton-pulse 1.5s ease-in-out infinite;background-color:var(--white)!important}.skeleton-element{background:linear-gradient(90deg,var(--outline) 25%,var(--light) 50%,var(--outline) 75%);background-size:200% 100%;animation:skeleton-shimmer 1.5s infinite;border-radius:4px}.skeleton-circle{background:linear-gradient(90deg,var(--outline) 25%,var(--light) 50%,var(--outline) 75%);background-size:200% 100%;animation:skeleton-shimmer 1.5s infinite}.skeleton-profile{width:48px;height:48px;border-radius:50%}.skeleton-badge{width:100px;height:28px;border-radius:100px}.test-type-badge-skeleton{width:90px;height:32px;border-radius:100px}.skeleton-score{width:50px;height:20px;border-radius:4px}.skeleton-button{width:120px;height:38px;border-radius:4px}.skeleton-attempt-btn{flex:1;min-width:120px;height:44px;border-radius:4px}.skeleton-title{width:80%;height:24px;margin-bottom:15px}.skeleton-icon{width:20px;height:20px;border-radius:4px}.skeleton-text{width:80px;height:16px}@keyframes skeleton-shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes skeleton-pulse{0%,to{opacity:1}50%{opacity:.8}}.skeleton-icon-box{width:40px;height:40px;border-radius:4px}.skeleton-large-value{width:80px;height:28px}.skeleton-label{width:120px;height:16px;margin-top:8px}.skeleton-chart-title{width:180px;height:20px}.skeleton-dropdown{width:100px;height:32px;border-radius:6px}.skeleton-chart{width:100%;height:250px;border-radius:8px}.bar-chart-skeleton{display:flex;gap:16px;height:300px}.bar-chart-y-axis{display:flex;flex-direction:column;justify-content:space-between;width:40px}.skeleton-y-label{width:30px;height:14px}.bar-chart-bars{flex:1;display:flex;align-items:flex-end;justify-content:space-around;gap:8px}.bar-item{flex:1;display:flex;flex-direction:column;align-items:center;gap:8px}.skeleton-bar{width:100%;min-height:20px;border-radius:4px 4px 0 0;transition:height .3s ease}.skeleton-bar-label{width:40px;height:14px}.skeleton-table-header{width:100px;height:16px}.skeleton-table-cell{width:80px;height:16px}.skeleton-difficulty-label{width:100px;height:16px}.skeleton-difficulty-percent{width:50px;height:16px}.skeleton-difficulty-bar{width:100%;height:8px;border-radius:4px}.skeleton-donut{width:200px;height:200px;border-radius:50%;margin:0 auto}.skeleton-donut-center-value{width:60px;height:24px;margin:0 auto 8px}.skeleton-donut-center-label{width:120px;height:14px;margin:0 auto}.skeleton-distribution-dot{width:12px;height:12px;border-radius:50%}.skeleton-distribution-label{width:80px;height:14px;margin-left:8px}.skeleton-distribution-value{width:50px;height:16px}.skeleton-instruction-line{border-radius:4px}.skeleton-logo-icon{width:32px;height:32px;border-radius:6px}.skeleton-logo-text{width:100px;height:18px}.skeleton-test-title{width:200px;height:18px;margin:0 auto}.skeleton-header-btn{width:100px;height:32px;border-radius:4px}.skeleton-info-item{width:80px;height:16px}.skeleton-question-number{width:150px;height:20px}.skeleton-marks-info{width:100px;height:20px}.skeleton-section-label{width:80px;height:14px}.skeleton-timer{width:120px;height:24px;border-radius:4px}.skeleton-section-tab{width:100px;height:36px;border-radius:4px;display:inline-block;margin-right:8px}.skeleton-question-image{width:100%;height:200px;border-radius:8px}.skeleton-question-text{width:100%;height:20px;border-radius:4px}.skeleton-option{width:100%;height:50px;border-radius:4px}.skeleton-footer-btn{width:120px;height:38px;border-radius:4px;display:inline-block;margin-right:8px}.skeleton-profile-img{width:40px;height:40px;border-radius:50%;display:inline-block}.skeleton-profile-name{width:100px;height:16px;margin-left:12px;display:inline-block}.skeleton-status-item{width:100%;height:50px;border-radius:4px}.skeleton-palette-title{width:120px;height:20px;margin:16px 16px 0}.skeleton-palette-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(48px,1fr));gap:20px}.skeleton-palette-button{width:100%;aspect-ratio:1;border-radius:4px;min-height:40px}.skeleton-sidebar-btn{width:100%;height:40px;border-radius:4px}.skeleton-icon-circle{width:48px;height:48px;border-radius:50%}@media (max-width: 991px){.performance-container .performance-overall-container.mb-4,.performance-container .mb-4{margin-bottom:1rem!important}.performance-container .skeleton-card.chart-card,.performance-container .skeleton-card.performance-card{border-radius:8px}.mock-test-grid .skeleton-card.mock-test-card{padding:14px}.mock-test-grid .test-card-header{margin-bottom:10px}}@media (max-width: 768px){.mock-test-grid .skeleton-card.mock-test-card{padding:14px}.mock-test-grid .skeleton-profile.skeleton-circle{width:44px;height:44px}.mock-test-grid .test-type-badge-skeleton{width:80px;height:28px}.mock-test-grid .skeleton-title{height:22px}.mock-test-grid .skeleton-attempt-btn{min-height:42px;height:42px}.mock-test-grid .skeleton-icon{width:18px;height:18px}.mock-test-grid .skeleton-text{width:70px;height:15px}.performance-container .skeleton-card.performance-card .skeleton-icon-box{width:34px;height:34px}.performance-container .skeleton-large-value{width:70px;height:24px}.performance-container .skeleton-card.chart-card .chart-header{padding:14px 12px;flex-wrap:wrap;gap:8px}.performance-container .skeleton-chart-title{width:140px;height:18px}.performance-container .skeleton-chart{height:180px}.bar-chart-skeleton{height:220px;gap:12px}.bar-chart-y-axis,.skeleton-bar-label{width:32px}.skeleton-donut{width:120px;height:120px}.skeleton-donut-center-value{width:50px;height:20px}.skeleton-donut-center-label{width:90px;height:12px}.test-instructions .instruction-actions.d-flex{flex-direction:column;gap:12px}.test-instructions .skeleton-button{width:100%;max-width:100%}.test-taking-fullscreen .test-top-header-content{flex-wrap:wrap;gap:8px}.test-taking-fullscreen .test-info-header-content{padding:8px 12px;flex-wrap:wrap;gap:8px}.test-taking-fullscreen .question-panel .section-tabs,.test-taking-fullscreen .skeleton-section-tab{display:none!important}.test-taking-fullscreen .skeleton-logo-icon{width:28px;height:28px}.test-taking-fullscreen .skeleton-logo-text{width:80px;height:16px}.test-taking-fullscreen .skeleton-test-title{width:140px;height:16px}.test-taking-fullscreen .skeleton-header-btn{width:80px;height:28px}.test-taking-fullscreen .skeleton-info-item{width:60px;height:14px}.test-taking-fullscreen .skeleton-question-number{width:100px;height:18px}.test-taking-fullscreen .skeleton-marks-info{width:70px;height:18px}.test-taking-fullscreen .skeleton-question-image{height:160px}.test-taking-fullscreen .skeleton-option{height:44px}.test-taking-fullscreen .question-panel .test-footer-actions{position:fixed;bottom:0;left:0;right:0;padding:12px 16px;gap:8px}.test-taking-fullscreen .question-panel .test-footer-actions .skeleton-footer-btn{width:calc(50% - 4px);min-width:0}.test-taking-fullscreen .question-panel .test-footer-actions .skeleton-footer-btn:nth-child(n+3){display:none!important}.test-taking-fullscreen .skeleton-palette-grid{grid-template-columns:repeat(auto-fill,minmax(38px,1fr));gap:16px}.test-taking-fullscreen .skeleton-palette-button{min-height:38px}.test-taking-fullscreen .skeleton-profile-img{width:36px;height:36px}.test-taking-fullscreen .skeleton-profile-name{width:80px;height:14px}.test-taking-fullscreen .skeleton-status-item{height:44px}}@media (max-width: 576px){.mock-test-grid .skeleton-card.mock-test-card{padding:12px;border-radius:6px}.mock-test-grid .test-card-header{gap:10px;margin-bottom:8px}.mock-test-grid .skeleton-profile.skeleton-circle{width:40px;height:40px}.mock-test-grid .test-type-badge-skeleton{width:70px;height:26px}.mock-test-grid .skeleton-title{height:20px;margin-bottom:10px}.mock-test-grid .skeleton-attempt-btn{min-height:40px;height:40px}.mock-test-grid .skeleton-icon{width:16px;height:16px}.mock-test-grid .skeleton-text{width:60px;height:14px}.performance-container .skeleton-card.performance-card .skeleton-icon-box{width:32px;height:32px}.performance-container .skeleton-large-value{width:60px;height:22px}.performance-container .skeleton-chart{height:160px}.bar-chart-skeleton{height:180px}.skeleton-donut{width:100px;height:100px}.skeleton-donut-center-value{width:40px;height:18px}.skeleton-donut-center-label{width:70px;height:11px}.test-taking-fullscreen .test-info-header-content{padding:6px 12px;gap:6px}.test-taking-fullscreen .skeleton-question-number{width:80px;height:16px}.test-taking-fullscreen .skeleton-question-image{height:140px}.test-taking-fullscreen .skeleton-option{height:40px}.test-instructions .skeleton-title[style*="width: 300px"]{max-width:100%}}@media (max-width: 568px){.mock-test-grid .skeleton-card.mock-test-card{padding:10px}.mock-test-grid .test-card-header{margin-bottom:8px}.mock-test-grid .skeleton-profile.skeleton-circle{width:36px;height:36px}.mock-test-grid .test-type-badge-skeleton{width:64px;height:24px}.mock-test-grid .skeleton-title{height:18px}.mock-test-grid .skeleton-attempt-btn{min-height:38px;height:38px}.mock-test-grid .skeleton-icon{width:14px;height:14px}.mock-test-grid .skeleton-text{width:50px;height:13px}}@media (max-width: 375px){.mock-test-grid .skeleton-card.mock-test-card{padding:10px}}.test-result-page .distribution-card .skeleton-donut{width:100%;height:100%;max-width:200px;max-height:200px}@media (max-width: 991px){.test-result-page .performance-card .skeleton-icon-box,.test-result-page .sectional-summary .performance-card .skeleton-icon-box{width:34px;height:34px}.test-result-page .performance-summary .skeleton-large-value{width:70px;height:24px}.test-result-page .distribution-card .skeleton-donut{max-width:200px;max-height:200px}}@media (max-width: 768px){.test-result-page .performance-card .skeleton-icon-box,.test-result-page .sectional-summary .performance-card .skeleton-icon-box{width:32px;height:32px}.test-result-page .performance-summary .skeleton-large-value{width:60px;height:22px}.test-result-page .result-header .skeleton-button{flex:1;min-width:0}}@media (max-width: 480px){.test-result-page .performance-card .skeleton-icon-box,.test-result-page .sectional-summary .performance-card .skeleton-icon-box{width:28px;height:28px}.test-result-page .distribution-card .skeleton-donut{max-width:180px;max-height:180px}}@media (max-width: 992px){.test-solution-fullscreen .test-content-wrapper{padding:0!important}.test-solution-fullscreen .question-panel{padding-right:0;margin-bottom:24px}.test-solution-fullscreen .sidebar-panel{padding-left:0}.test-solution-fullscreen .test-info-header-content{padding:8px 12px;flex-wrap:wrap;gap:8px}.test-solution-fullscreen .skeleton-palette-grid{grid-template-columns:repeat(auto-fill,minmax(38px,1fr));gap:12px}.test-solution-fullscreen .skeleton-palette-button{min-height:38px}}@media (max-width: 768px){.test-solution-fullscreen .question-panel .section-tabs,.test-solution-fullscreen .skeleton-section-tab{display:none!important}.test-solution-fullscreen .skeleton-logo-icon{width:28px;height:28px}.test-solution-fullscreen .skeleton-logo-text{width:80px;height:16px}.test-solution-fullscreen .skeleton-test-title{width:140px;height:16px}.test-solution-fullscreen .skeleton-header-btn{width:80px;height:28px}.test-solution-fullscreen .skeleton-info-item{width:60px;height:14px}.test-solution-fullscreen .skeleton-question-number{width:100px;height:18px}.test-solution-fullscreen .skeleton-marks-info{width:70px;height:18px}.test-solution-fullscreen .skeleton-question-image{height:160px}.test-solution-fullscreen .skeleton-option{height:44px}.test-solution-fullscreen .question-panel .test-footer-actions{position:fixed;bottom:0;left:0;right:0;padding:12px 16px;gap:8px}.test-solution-fullscreen .question-panel .test-footer-actions .test-footer-btn-report{display:none!important}.test-solution-fullscreen .question-panel .test-footer-actions .test-footer-btn-prev,.test-solution-fullscreen .question-panel .test-footer-actions .test-footer-btn-save-next{flex:1;min-width:0}.test-solution-fullscreen .skeleton-profile-img{width:36px;height:36px}.test-solution-fullscreen .skeleton-profile-name{width:80px;height:14px}.test-solution-fullscreen .question-content-wrapper{padding-bottom:70px}}@media (max-width: 576px){.test-solution-fullscreen .test-info-header-content{padding:6px 12px;gap:6px}.test-solution-fullscreen .skeleton-question-number{width:80px;height:16px}.test-solution-fullscreen .skeleton-question-image{height:140px}.test-solution-fullscreen .skeleton-option{height:40px}}.chart-card__title{margin-bottom:.75rem;flex-shrink:0}.chart-card__chart{flex:1;min-height:200px;width:100%}.chart-card__chart--empty{display:flex;align-items:center;justify-content:center}.chart-card__empty-label{color:var(--body);font-size:.875rem}.chart-axis text{fill:var(--body);font-size:12px}.chart-card .recharts-legend-item-text,.chart-card .recharts-default-legend{color:var(--dark);font-size:.75rem}.chart-card .recharts-legend-item text{fill:var(--dark);font-size:12px}@media (max-width: var(--bp-md)){.chart-card:not(.chart-card--match-next){padding:calc(var(--card-padding) * .833);min-height:260px}}@media (max-width: var(--bp-sm)){.chart-card:not(.chart-card--match-next){padding:calc(var(--card-padding) * .667);min-height:240px}}.analytics-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--chart-grid-gap);width:100%}@media (max-width: var(--bp-lg)){.analytics-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: var(--bp-sm)){.analytics-grid{grid-template-columns:1fr;gap:calc(var(--chart-grid-gap) * .667)}}.performance-container{background-color:var(--light);min-height:100vh}.performance-container .performance-overall-container>.row.g-3{display:grid;grid-template-columns:repeat(2,1fr);gap:.75rem;align-items:stretch}.performance-container .performance-overall-container>.row.g-3>[class*=col-]{max-width:none;flex:none;width:auto}.performance-container .performance-overall-container>.row.g-3 .performance-card{height:100%;display:flex}.performance-container .performance-overall-container>.row.g-3 .performance-card .card-body{flex:1;display:flex;flex-direction:column}.performance-container .row.row-eq-height{display:grid;grid-template-columns:1fr;gap:16px;align-items:stretch}.performance-container .row.row-eq-height>[class*=col-]{max-width:none;flex:none;width:auto;min-width:0}.performance-container .row.row-eq-height>.performance-chart-col{display:flex;flex-direction:column;min-height:0}.performance-container .row.row-eq-height>.performance-chart-col .chart-card{flex:1;display:flex;flex-direction:column;min-height:0}.performance-container .row.row-eq-height>.performance-timeline-col{display:grid!important;grid-template-columns:1fr;gap:.75rem;align-items:stretch}.performance-container .row.row-eq-height>.performance-timeline-col>.chart-card{min-height:0;display:flex;flex-direction:column}.performance-container .row.row-eq-height>.performance-timeline-col>.chart-card .card-body{flex:1;min-height:0}.performance-container .performance-subject-row{display:grid!important;grid-template-columns:1fr;gap:1rem;align-items:start;width:100%}.performance-container .performance-subject-row>[class*=col-]{max-width:none!important;flex:none!important;width:auto!important;min-width:0}@media (min-width: 768px){.performance-container .performance-subject-row{grid-template-columns:7fr 5fr;gap:1.5rem}}@media (min-width: 992px){.performance-container .performance-overall-container>.row.g-3{grid-template-columns:repeat(4,1fr)}.performance-container .row.row-eq-height{grid-template-columns:8fr 4fr}}@media (max-width: 568px){.performance-container .performance-overall-container>.row.g-3,.performance-container .row.row-eq-height{gap:.5rem}}.performance-overall-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:nowrap;gap:12px}.performance-overall-header .performance-title{margin-bottom:0;flex-shrink:0}.performance-overall-header .performance-overall-filter{flex-shrink:0;margin-left:auto}.performance-title{font-size:16px;font-weight:600;color:var(--dark);margin-bottom:0}.performance-overall-filter{border:1px solid var(--outline);color:var(--body);font-size:14px;font-weight:500;padding:6px 12px;border-radius:6px;background:var(--white)}.performance-overall-filter:hover,.performance-overall-filter:focus{background-color:var(--light);border-color:var(--outline);color:var(--body)}.performance-subject-tabs .subject-breadcrumb{padding-bottom:10px;border-bottom:1px solid var(--outline)}.performance-subject-tabs .subject-breadcrumb .page-title{margin-bottom:0;border-bottom:none;padding:0}.performance-subject-tabs .clickable-breadcrumb .link,.performance-subject-tabs .clickable-breadcrumb .current{font-weight:500}.performance-subject-dropdown-mobile .performance-subject-dropdown{border:1px solid var(--outline);color:var(--body);font-size:14px;font-weight:500;padding:8px 12px;border-radius:6px;background-color:var(--white)}.performance-subject-dropdown-mobile .performance-subject-dropdown:hover,.performance-subject-dropdown-mobile .performance-subject-dropdown:focus{background-color:var(--light);border-color:var(--outline);color:var(--body)}.performance-card{border:none;border-radius:8px;background:var(--white);transition:transform .2s,box-shadow .2s;height:100%}.performance-card:hover{transform:translateY(-2px)}.performance-card-header{display:flex;align-items:flex-start;justify-content:space-between}.performance-icon-wrapper{width:40px;height:40px;border-radius:4px;display:flex;align-items:center;justify-content:center;overflow:hidden;flex-shrink:0}.performance-icon-wrapper svg{width:100%;height:100%}.performance-label{font-size:14px;color:var(--body);font-weight:500}.performance-value-row{display:flex;align-items:baseline;gap:8px}.performance-value-current{font-size:24px;font-weight:700;color:var(--dark)}.performance-value-last{font-size:16px;color:var(--body);font-weight:500}.performance-change-label{font-size:12px;color:var(--body);margin-bottom:4px}.performance-change{font-size:14px;font-weight:600}.chart-card{border:none;border-radius:12px;background:var(--white);height:100%}.row-eq-height{align-items:stretch}.chart-card--match-next{display:flex;flex-direction:column;height:100%}.chart-card--match-next .card-body{flex:1;min-height:0;display:flex;flex-direction:column}@media (min-width: 992px){.row-eq-height{display:flex;flex-wrap:wrap;align-items:stretch}.row-eq-height>.performance-chart-col{display:flex;flex-direction:column;min-height:0}.row-eq-height>.performance-chart-col>.chart-card--match-next{flex:1 1 auto;min-height:0;display:flex;flex-direction:column}.row-eq-height>.performance-timeline-col{display:flex;flex-direction:column}.row-eq-height>.performance-timeline-col>.chart-card{flex:0 0 auto}}.chart-header .dropdown-toggle{border:1px solid var(--outline);color:var(--body);font-size:14px;font-weight:500;padding:6px 12px;border-radius:6px;background:var(--white)}.chart-header .dropdown-toggle:hover,.chart-header .dropdown-toggle:focus{background-color:var(--light);border-color:var(--outline);color:var(--body)}.chart-title{font-size:16px!important;font-weight:600;color:var(--dark);margin:0}.performance-chart-col{min-width:0}.performance-chart-col .chart-card{width:100%;max-width:100%;overflow:hidden}.line-chart-container{padding:20px 0;width:100%;min-width:0;overflow:hidden}.line-chart-wrapper{position:relative;width:100%;min-width:0;height:240px;margin-bottom:20px;touch-action:manipulation;-webkit-tap-highlight-color:transparent}.chart-overview-tooltip{position:absolute;top:10px;left:50%;transform:translate(-50%);background:var(--white);border:1px solid var(--outline);border-radius:8px;padding:12px 16px;box-shadow:0 4px 16px color-mix(in srgb,var(--dark) 12%,transparent);z-index:10;min-width:180px;max-width:min(280px,calc(100vw - 24px));pointer-events:none;transition:opacity .15s ease}.chart-overview-date{font-size:12px;font-weight:600;color:var(--dark);margin-bottom:8px;padding-bottom:8px;border-bottom:1px solid var(--outline)}.chart-overview-values{display:flex;flex-direction:column;gap:6px}.chart-overview-item{display:flex;justify-content:space-between;align-items:center}.chart-overview-label{font-size:12px;color:var(--body);font-weight:500}.chart-overview-value{font-size:14px;font-weight:600}.chart-overview-value.attempted{color:var(--orange)}.chart-overview-value.score{color:var(--green)}.chart-overview-value.accuracy{color:var(--purple)}.line-chart-svg{width:100%;height:100%;min-width:0;overflow:visible;display:block}.line-chart-labels{display:flex;justify-content:space-around;margin-top:8px;padding:0 20px}.line-chart-label{font-size:12px;color:var(--body);font-weight:500;text-align:center}.line-chart-interactive{-webkit-tap-highlight-color:transparent}.line-chart-label.line-chart-interactive{min-height:36px;display:flex;align-items:center;justify-content:center;padding:4px 2px}.line-chart-labels-dense .line-chart-label{font-size:10px}.line-chart-legend{display:flex;justify-content:center;gap:24px;margin-top:16px}.line-chart-legend .legend-item{display:flex;align-items:center;gap:8px}.legend-dot{width:12px;height:12px;border-radius:2px}.legend-dot.attempted{background-color:var(--orange)}.legend-dot.score{background-color:var(--green)}.legend-dot.accuracy{background-color:var(--purple)}.timeline-metrics{display:flex;flex-direction:row;gap:24px;align-items:center}.timeline-metric{width:100%;display:flex;justify-content:center}.timeline-donut-wrapper{position:relative;width:150px;height:150px}.timeline-donut-svg{width:100%;height:100%}.timeline-donut-center{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;background:var(--white);width:100px;height:100px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center}.timeline-value{font-size:20px;font-weight:700;color:var(--dark);margin-bottom:4px}.timeline-label{font-size:11px;color:var(--body);font-weight:500;text-align:center;line-height:1.2}.difficulty-level-list{display:flex;flex-direction:column;gap:16px}.difficulty-item{display:flex;flex-direction:column;gap:8px}.difficulty-label{font-size:14px;font-weight:600;color:var(--dark)}.difficulty-bar-wrapper{width:100%}.difficulty-bar-bg{width:100%;height:8px;background-color:var(--outline);border-radius:16px;overflow:hidden}.difficulty-bar{height:100%;border-radius:16px;transition:width .5s ease}.difficulty-bar.easy{background-color:var(--green)}.difficulty-bar.medium{background-color:var(--orange)}.difficulty-bar.hard{background-color:var(--red)}.difficulty-bar.attempted{background-color:var(--main)}.difficulty-bar.score{background-color:var(--purple)}.difficulty-bar.accuracy{background-color:var(--green)}.difficulty-percentage{font-size:14px;font-weight:600;color:var(--dark)}.subject-tabs{margin-bottom:24px}.subject-tabs .nav-tabs{border-bottom:1px solid var(--outline)}.subject-tabs .nav-link{border:none!important;background:transparent!important;color:var(--body);font-weight:600;padding:10px 16px 11px;margin-right:0;border-radius:0}.subject-tabs .nav-link:hover{color:var(--main)}.subject-tabs .nav-link.active{color:var(--main);background-color:transparent!important;border-bottom:3px solid var(--main)!important}.performance-subject-row{width:100%}.performance-subject-row>.col{margin-bottom:0}.subject-metrics{display:flex;justify-content:space-around;gap:20px;flex-wrap:wrap}.subject-metric-item{display:flex;justify-content:center}.subject-donut-wrapper{position:relative;width:150px;height:150px}.subject-donut-svg{width:100%;height:100%}.subject-donut-center{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;background:var(--white);width:80px;height:80px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center}.subject-value{font-size:16px;font-weight:700;color:var(--dark);margin-bottom:2px}.subject-label{font-size:10px;color:var(--body);font-weight:500;text-align:center;line-height:1.2}.question-distribution{display:flex;flex-direction:column;gap:20px}.performance-container .performance-subject-row .chart-card .question-distribution{padding:16px}.donut-chart-container{width:200px;height:200px;position:relative}.donut-chart{width:100%;height:100%}.donut-center-value-container{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center}.donut-center-value{font-size:32px;font-weight:700;color:var(--dark);line-height:1.2;display:block}.donut-center-label{font-size:12px;color:var(--body);font-weight:500;line-height:1.2;display:block;margin-top:4px}.donut-ring{stroke:var(--outline)}.donut-segment{transition:stroke-dasharray .3s}.correct-segment{stroke:var(--green)}.wrong-segment{stroke:var(--red)}.not-attempted-segment{stroke:var(--outline)}.question-distribution-breakdown{display:flex;flex-direction:column;gap:16px;width:100%}.distribution-item{width:100%}.distribution-info{display:flex;align-items:center;gap:12px;width:100%}.distribution-label-wrapper{display:flex;align-items:center;gap:8px;min-width:100px}.distribution-dot{width:12px;height:12px;border-radius:2px;flex-shrink:0}.distribution-dot.correct,.distribution-bar-segment.correct{background-color:var(--green)!important}.distribution-dot.wrong,.distribution-bar-segment.wrong{background-color:var(--red)!important}.distribution-dot.unattempted,.distribution-bar-segment.unattempted{background-color:var(--outline)!important}.distribution-label{font-size:14px;color:var(--body);font-weight:500;white-space:nowrap}.distribution-bar-wrapper{flex:1;height:8px;background-color:var(--light);border-radius:4px;overflow:hidden;position:relative}.distribution-bar{height:100%;border-radius:4px;transition:width .3s ease}.distribution-bar.correct{background-color:var(--green)}.distribution-bar.wrong{background-color:var(--red)}.distribution-bar.unattempted{background-color:var(--outline)}.distribution-value{font-size:14px;font-weight:600;color:var(--dark);min-width:60px;text-align:right}.subject-tabs .nav-item{padding:0}.subject-tabs .nav-item:hover{color:var(--main);background-color:transparent!important}.subject-tabs .nav-item .active{color:var(--main)!important;background-color:transparent!important}.topic-table{margin:0}.topic-table thead th{font-size:14px;font-weight:600;color:var(--white);padding:12px;background:var(--body);border-bottom:2px solid color-mix(in srgb,var(--white) 20%,transparent);white-space:nowrap;min-width:85px}.topic-table thead th:first-child{min-width:100px}.topic-table thead th:last-child{min-width:110px}.topic-table tbody td{padding:16px 12px;font-size:14px;color:var(--body);border-bottom:1px solid var(--outline)}.topic-table tbody tr:hover{background-color:var(--light)}.dark-mode .topic-table thead th{background-color:var(--outline);color:var(--dark);border-bottom-color:var(--outline)}.dark-mode .topic-table tbody tr{background-color:var(--white)}.dark-mode .topic-table tbody tr:hover{background-color:var(--light)}.dark-mode .topic-table tbody td{color:var(--body);border-bottom-color:var(--outline)}.dark-mode .topic-table .topic-name,.dark-mode .topic-table .topic-accuracy{color:var(--dark)}.topic-name{font-weight:500;color:var(--dark)}.topic-accuracy{font-weight:600;color:var(--dark)}.practice-badge{padding:4px 12px;border-radius:12px;font-size:12px;font-weight:600}.practice-badge.low{background-color:var(--green-l);color:var(--green)}.practice-badge.mid{background-color:var(--orange-l);color:var(--orange)}.practice-badge.hard{background-color:var(--red-l);color:var(--red)}.dark-mode .practice-badge.low{background-color:color-mix(in srgb,var(--green) 22%,var(--white));color:color-mix(in srgb,var(--green) 85%,var(--dark))}.dark-mode .practice-badge.mid{background-color:color-mix(in srgb,var(--orange) 22%,var(--white));color:color-mix(in srgb,var(--orange) 90%,var(--dark))}.dark-mode .practice-badge.hard{background-color:color-mix(in srgb,var(--red) 22%,var(--white));color:color-mix(in srgb,var(--red) 90%,var(--dark))}.loading-spinner{display:flex;justify-content:center;align-items:center;min-height:400px}.empty-state{text-align:center;padding:60px 20px;color:var(--body)}.empty-state p{font-size:16px}.empty-message{text-align:center;color:var(--body);padding:40px 0;font-size:14px}.performance-timeline-col{flex-direction:column}@media (min-width: 768px) and (max-width: 991px){.performance-timeline-col{flex-direction:row!important;flex-wrap:nowrap;gap:12px;align-items:stretch}.performance-timeline-col>.chart-card{flex:1 1 0;min-width:0;max-width:50%}.performance-timeline-col .chart-card .card-body,.performance-timeline-col .chart-header{padding:10px 12px}.performance-timeline-col .chart-title{font-size:14px!important}.performance-timeline-col .timeline-metrics{gap:12px}.performance-timeline-col .timeline-donut-wrapper{width:110px;height:110px;margin:0 auto}.performance-timeline-col .timeline-donut-center{width:72px;height:72px}.performance-timeline-col .timeline-value{font-size:16px}.performance-timeline-col .timeline-label{font-size:9px}.performance-timeline-col .difficulty-level-list{gap:10px}.performance-timeline-col .difficulty-item{gap:6px}.performance-timeline-col .difficulty-label,.performance-timeline-col .difficulty-percentage{font-size:13px}.performance-timeline-col .difficulty-bar-bg{height:6px}}@media (max-width: 991px){.performance-container{padding:16px}.performance-chart-col,.performance-timeline-col{flex:0 0 100%;max-width:100%}.performance-chart-col .chart-card{width:100%}.line-chart-container{padding:16px 0}.line-chart-labels{padding:0 12px}.performance-title{font-size:15px}.performance-value-current{font-size:22px}.performance-value-last{font-size:14px}.performance-label{font-size:13px}.performance-icon-wrapper{width:36px;height:36px}.line-chart-wrapper{height:200px}.chart-overview-tooltip{min-width:180px;padding:10px 14px;max-width:min(260px,calc(100vw - 32px))}.chart-overview-date{font-size:11px}.chart-overview-value{font-size:13px}.line-chart-legend{gap:20px;margin-top:12px}.line-chart-label{font-size:11px}.timeline-metrics{gap:16px}.timeline-donut-wrapper{width:130px;height:130px}.timeline-donut-center{width:85px;height:85px}.timeline-value{font-size:18px}.timeline-label{font-size:10px}.subject-donut-wrapper{width:130px;height:130px}.subject-donut-center{width:70px;height:70px}.subject-value{font-size:15px}.subject-label{font-size:9px}.subject-tabs .nav-link{padding:8px 12px;font-size:14px}.chart-header{padding:16px}.chart-title{font-size:15px!important}}@media (max-width: 768px){.performance-container{padding:12px}.performance-title{font-size:14px}.performance-value-current{font-size:20px}.performance-value-last{font-size:13px}.performance-change-label{font-size:11px}.performance-label{font-size:12px}.performance-icon-wrapper{width:34px;height:34px}.line-chart-wrapper{height:180px}.line-chart-container{padding:12px 0}.chart-overview-tooltip{top:50%;left:50%;transform:translate(-50%,-50%);min-width:160px;padding:8px 12px;font-size:11px;max-width:min(240px,calc(100% - 24px))}.line-chart-label.line-chart-interactive{min-height:40px;padding:6px 2px}.chart-overview-date{font-size:10px;margin-bottom:6px;padding-bottom:6px}.chart-overview-values{gap:4px}.chart-overview-value{font-size:12px}.line-chart-legend{flex-wrap:wrap;justify-content:center;gap:12px 20px;margin-top:10px}.line-chart-labels{padding:0 8px;margin-top:6px;min-width:0;overflow-x:auto;-webkit-overflow-scrolling:touch}.line-chart-label{font-size:10px;flex-shrink:0}.line-chart-labels-dense .line-chart-label{font-size:9px}.chart-header{padding:14px 12px;flex-wrap:wrap;gap:8px}.chart-title{font-size:14px!important}.performance-timeline-col{flex-direction:column}.performance-timeline-col>.chart-card{flex:1 1 auto}.timeline-metrics{flex-direction:row;justify-content:space-around;align-items:center;gap:16px}.timeline-metric{flex:1;min-width:0}.timeline-donut-wrapper{width:120px;height:120px;margin:0 auto}.timeline-donut-center{width:75px;height:75px}.timeline-value{font-size:18px}.subject-metrics{flex-direction:row;justify-content:space-between;align-items:center;gap:12px;flex-wrap:nowrap}.subject-metrics .subject-metric-item{flex:1;min-width:0}.subject-donut-wrapper{width:120px;height:120px;margin:0 auto}.subject-donut-center{width:65px;height:65px}.subject-value{font-size:14px}.subject-label{font-size:9px}.subject-tabs{margin-bottom:16px}.subject-tabs .nav-link{padding:8px 10px;font-size:13px}.subject-tabs .nav-tabs{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;-ms-overflow-style:none}.subject-tabs .nav-tabs::-webkit-scrollbar{display:none}.subject-tabs .nav-item{flex-shrink:0}.distribution-info{flex-wrap:wrap;gap:8px}.distribution-label{font-size:13px}.distribution-value{font-size:13px;min-width:50px}.distribution-percent,.difficulty-label,.difficulty-percentage{font-size:13px}.topic-table{font-size:12px}.topic-table thead th,.topic-table tbody td{padding:10px 8px}.topic-name{max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.practice-badge{padding:3px 10px;font-size:11px}.table-responsive{-webkit-overflow-scrolling:touch;overflow-x:auto}.topic-table{min-width:500px}.performance-overall-container .mb-4,.performance-container .mb-4{margin-bottom:1rem!important}.performance-subject-row{flex-direction:column;align-items:stretch;gap:16px}.performance-subject-row>[class*=col-]{max-width:100%}}@media (max-width: 576px){.performance-container{padding:8px}.performance-title{font-size:13px}.performance-value-current{font-size:18px}.performance-value-last{font-size:12px}.performance-change-label{font-size:10px}.performance-label{font-size:11px}.performance-icon-wrapper{width:30px;height:30px}.performance-overall-filter{font-size:12px;padding:5px 10px}.line-chart-wrapper{height:160px}.line-chart-container{padding:10px 0}.chart-overview-tooltip{top:50%;left:50%;transform:translate(-50%,-50%);min-width:140px;padding:6px 10px;max-width:min(220px,calc(100% - 20px))}.line-chart-label.line-chart-interactive{min-height:44px;padding:8px 2px}.chart-overview-date{font-size:9px}.chart-overview-value{font-size:11px}.line-chart-legend{gap:10px 16px;margin-top:8px}.line-chart-legend .legend-item{font-size:11px}.legend-dot{width:10px;height:10px}.chart-header{padding:12px 10px}.chart-title{font-size:13px!important}.chart-card .chart-header.mb-2{margin-bottom:.5rem!important}.timeline-donut-wrapper{width:120px;height:120px}.timeline-donut-center{width:80px;height:80px}.timeline-value{font-size:16px}.timeline-label{font-size:9px}.subject-donut-wrapper{width:100px;height:100px}.subject-donut-center{width:55px;height:55px}.subject-value{font-size:12px}.subject-label{font-size:8px}.subject-tabs .nav-link{padding:6px 8px;font-size:12px}.distribution-bar-header{margin-bottom:8px}.performance-container .performance-subject-row .chart-card .question-distribution{padding:12px}.distribution-info{gap:6px}.distribution-label{font-size:12px}.distribution-value{font-size:12px;min-width:40px}.distribution-percent{font-size:12px}.distribution-dot{width:10px;height:10px}.difficulty-label,.difficulty-percentage{font-size:12px}.difficulty-bar-bg{height:6px}.difficulty-level-list{gap:12px}.topic-table{font-size:11px;min-width:420px}.topic-table thead th,.topic-table tbody td{padding:8px 6px}.topic-name{max-width:90px}.practice-badge{padding:2px 8px;font-size:10px}.empty-state{padding:40px 16px}.empty-state p{font-size:14px}}@media (max-width: 568px){.performance-container{padding:6px}.performance-overall-container .mb-4,.performance-container .mb-4{margin-bottom:.75rem!important}.performance-value-current{font-size:16px}.performance-value-last{font-size:11px}.performance-icon-wrapper{width:28px;height:28px}.line-chart-wrapper{height:150px}.chart-overview-tooltip{top:50%;left:50%;transform:translate(-50%,-50%);min-width:130px;max-width:min(200px,calc(100% - 16px))}.line-chart-label.line-chart-interactive{min-height:44px}.timeline-metrics{gap:12px}.timeline-donut-wrapper{width:100px;height:100px}.timeline-donut-center{width:65px;height:65px}.timeline-value{font-size:14px}.subject-donut-wrapper{width:90px;height:90px}.subject-donut-center{width:50px;height:50px}.subject-value{font-size:11px}.subject-label{font-size:7px}.topic-table{min-width:380px}.topic-table thead th,.topic-table tbody td{padding:6px 4px;font-size:10px}.topic-name{max-width:80px}}.user-dashboard-stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:.75rem;align-items:stretch}.user-dashboard-stat-card{display:flex;min-height:0}.user-dashboard-stat-card .performance-card{flex:1;display:flex;align-items:stretch}.user-dashboard-stat-card .performance-card .card-body{flex:1;display:flex;align-items:center}.user-dashboard-charts-grid{display:grid;gap:16px;grid-template-columns:1fr;grid-template-rows:auto;grid-template-areas:"activity" "subject" "donut" "recent"}.user-dashboard-activity-chart{grid-area:activity}.user-dashboard-subject-chart{grid-area:subject}.user-dashboard-donut-chart{grid-area:donut}.user-dashboard-recent-activity{grid-area:recent}.user-dashboard-chart-item{min-height:0;display:flex;flex-direction:column}.user-dashboard-chart-item .chart-card{flex:1;display:flex;flex-direction:column;min-height:0}.dashboard-container{padding:20px;background-color:var(--light);min-height:100vh}.dashboard-title{font-size:24px;font-weight:600;color:var(--dark);margin-bottom:24px}.new-performance-card-header{display:flex;align-items:center;justify-content:flex-start}.user-dashboard-empty-state{text-align:center;padding:60px 20px}.user-dashboard-empty-state-inner{max-width:600px;margin:0 auto}.user-dashboard-empty-icon{font-size:72px;margin-bottom:20px}.user-dashboard-empty-title{margin-bottom:16px;color:var(--dark);font-size:1.25rem;font-weight:600}.user-dashboard-empty-text{font-size:18px;color:var(--body);margin-bottom:30px;line-height:1.6}.chart-card{border:none;border-radius:12px;box-shadow:0 2px 8px color-mix(in srgb,var(--dark) 8%,transparent);background:var(--white);height:100%}@media (min-width: 768px){.user-dashboard-stats-grid{grid-template-columns:repeat(2,1fr)}.user-dashboard-charts-grid{grid-template-columns:1fr 1fr;grid-template-areas:"activity activity" "subject donut" "recent recent"}}@media (min-width: 992px){.user-dashboard-stats-grid{grid-template-columns:repeat(4,1fr)}.user-dashboard-charts-grid{grid-template-columns:repeat(12,1fr);grid-template-rows:auto auto;grid-template-areas:unset}.user-dashboard-activity-chart{grid-area:unset;grid-column:1 / 9;grid-row:1}.user-dashboard-subject-chart{grid-area:unset;grid-column:9 / 13;grid-row:1}.user-dashboard-donut-chart{grid-area:unset;grid-column:1 / 4;grid-row:2}.user-dashboard-recent-activity{grid-area:unset;grid-column:4 / 13;grid-row:2}}.user-dashboard-charts-grid{align-items:stretch}@media (min-width: 992px){.user-dashboard-activity-chart,.user-dashboard-subject-chart{align-self:stretch}}.chart-card--match-next .card-body,.user-dashboard-chart-item .chart-card .card-body{flex:1;min-height:0;display:flex;flex-direction:column}.chart-card--match-next .card-body>div{flex:1;min-height:220px}@media (max-width: 768px){.chart-card--match-next .card-body>div{min-height:200px}}@media (max-width: 576px){.chart-card--match-next .card-body>div{min-height:180px}}.chart-header{display:flex;justify-content:space-between;align-items:center;background:var(--white);flex-shrink:0}.chart-title{font-size:18px;font-weight:600;color:var(--dark);margin:0}.view-all-link{background:none;border:none;color:var(--main);font-size:14px;font-weight:500;cursor:pointer;padding:0;text-decoration:none}.view-all-link:hover{text-decoration:underline;color:var(--main);opacity:.9}.question-distribution-wrapper{display:flex;flex-direction:column;align-items:center;gap:24px}.donut-chart-container{width:200px;height:200px;position:relative;flex-shrink:0}.donut-chart-wrapper{position:relative;width:200px;height:200px}.donut-chart{width:100%;height:100%;transform:rotate(-90deg)}.donut-chart-center{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center}.donut-chart-value{font-size:24px;font-weight:700;color:var(--dark);margin-bottom:4px}.donut-chart-label{font-size:12px;color:var(--body);font-weight:500}.donut-legend{display:flex;flex-direction:column;gap:12px;width:100%}.legend-item{display:flex;align-items:center;gap:12px}.legend-color{width:16px;height:16px;border-radius:4px;flex-shrink:0}.legend-label{flex:1;font-size:14px;color:var(--body);font-weight:500}.legend-value{font-size:14px;font-weight:600;color:var(--dark)}.recent-activity-table{margin:0;table-layout:auto}.recent-activity-table thead th:first-child,.recent-activity-table tbody td:first-child{min-width:180px}.recent-activity-table tbody td:first-child{vertical-align:top;padding-top:12px}.recent-activity-table thead th{border-bottom:2px solid var(--outline);font-size:14px;font-weight:600;color:var(--white);padding:10px 8px;background:transparent;vertical-align:middle}.dark-mode .recent-activity-table thead th{background-color:var(--outline);color:var(--dark);border-bottom-color:var(--outline)}.recent-activity-table tbody td{padding:10px 8px;font-size:14px;color:var(--body);border-bottom:1px solid var(--outline);vertical-align:middle}.recent-activity-table tbody tr:hover{background-color:var(--light)}.test-name{font-weight:600;font-size:15px;color:var(--dark);line-height:1.4;white-space:normal;word-wrap:break-word;min-width:180px;max-width:320px}.test-activity{color:var(--body)}.test-score{font-weight:600;color:var(--dark)}.action-cell{vertical-align:middle}.action-cell .btn-view-solutions{display:inline-flex;align-items:center;justify-content:center}.btn-view-solutions{min-height:unset;padding:8px 16px!important;font-size:12px!important;border-radius:4px;transition:all .2s}.btn-view-solutions:hover{transform:translateY(-1px)}@media (max-width: 991px){.user-dashboard-empty-title{font-size:1.125rem}.user-dashboard-empty-text{font-size:16px}}.user-dashboard-subject-chart .chart-card .card-body,.user-dashboard-donut-chart .chart-card .card-body{display:flex;flex-direction:column}.user-dashboard-subject-chart .difficulty-level-list,.user-dashboard-donut-chart .question-distribution-wrapper{flex:1;min-height:0}.user-dashboard-donut-chart .question-distribution-wrapper{justify-content:center}@media (min-width: 768px) and (max-width: 991px){.user-dashboard-subject-chart .difficulty-level-list,.user-dashboard-donut-chart .question-distribution-wrapper{flex:1;min-height:0}}@media (max-width: 768px){.user-dashboard-empty-state{padding:40px 16px}.user-dashboard-empty-icon{font-size:56px;margin-bottom:16px}.user-dashboard-empty-title{font-size:1rem;margin-bottom:12px}.user-dashboard-empty-text{font-size:14px;margin-bottom:24px}.new-performance-card-header{flex-wrap:nowrap}.performance-value-current{font-size:20px}.performance-label{font-size:12px}.performance-icon-wrapper{width:36px;height:36px}.performance-icon-wrapper svg{width:36px;height:36px}.chart-header{padding:14px 16px;flex-wrap:wrap;gap:8px}.chart-title{font-size:16px!important}.performance-card.p-3{padding:.65rem!important}.performance-card.p-3 .card-body{padding:10px 12px!important}.question-distribution-wrapper{flex-direction:row;align-items:center;justify-content:center;gap:16px;flex-wrap:nowrap}.donut-chart-container{width:160px;height:160px;flex-shrink:0}.question-distribution-breakdown{flex:1;min-width:0}.donut-chart{transform:scale(.8);transform-origin:center}.donut-center-value{font-size:24px}.donut-center-label{font-size:11px}.distribution-label,.distribution-value{font-size:13px}.recent-activity-table{font-size:12px}.recent-activity-table thead th,.recent-activity-table tbody td{padding:8px 6px}.btn-view-solutions{padding:4px 10px!important;font-size:11px!important}.empty-message{padding:24px 0;font-size:13px}.table-responsive{-webkit-overflow-scrolling:touch;overflow-x:auto}.recent-activity-table{min-width:400px}}@media (max-width: 576px){.user-dashboard-empty-state{padding:32px 12px}.user-dashboard-empty-icon{font-size:48px}.user-dashboard-empty-title{font-size:.9375rem}.user-dashboard-empty-text{font-size:13px;margin-bottom:20px}.new-performance-card-header .ps-3{padding-left:.5rem!important}.performance-value-current{font-size:18px}.performance-label{font-size:11px}.performance-icon-wrapper{width:32px;height:32px}.performance-icon-wrapper svg{width:32px;height:32px}.chart-header{padding:12px}.chart-title{font-size:14px!important}.donut-chart-container{width:140px;height:140px}.donut-center-value{font-size:20px}.donut-center-label{font-size:10px}.question-distribution-wrapper,.question-distribution-breakdown{gap:12px}.distribution-label-wrapper{min-width:80px}.distribution-dot{width:10px;height:10px}.performance-card.p-3{padding:.5rem!important}.performance-card.p-3 .card-body{padding:8px 10px!important}.recent-activity-table thead th,.recent-activity-table tbody td{padding:8px 6px;font-size:12px}.recent-activity-table thead th:first-child,.recent-activity-table tbody td:first-child{min-width:120px}.test-name{min-width:100px;max-width:200px;font-size:13px;font-weight:600}.btn-view-solutions{padding:2px 8px!important;font-size:10px!important}.difficulty-label,.difficulty-percentage{font-size:12px}.difficulty-bar-bg{height:6px}.recent-activity-table{min-width:360px}}@media (max-width: 568px){.user-dashboard-stats-grid,.user-dashboard-charts-grid{gap:8px}.user-dashboard-responsive .mb-4{margin-bottom:.75rem!important}.performance-card.p-3{padding:.4rem!important}.performance-card.p-3 .card-body{padding:6px 8px!important}.new-performance-card-header .ps-3{padding-left:.4rem!important}.performance-value-current{font-size:16px}.performance-label{font-size:10px}.performance-icon-wrapper{width:28px;height:28px}.performance-icon-wrapper svg{width:28px;height:28px}.chart-header{padding:10px 12px}.chart-title{font-size:13px!important}.donut-chart-container{width:120px;height:120px}.donut-center-value{font-size:18px}.donut-center-label{font-size:9px}.question-distribution-wrapper{gap:12px}.distribution-label,.distribution-value{font-size:11px}.distribution-label-wrapper{min-width:70px}.distribution-dot{width:8px;height:8px}.recent-activity-table thead th,.recent-activity-table tbody td{padding:5px 3px;font-size:10px}.recent-activity-table{min-width:320px}.test-name{max-width:100px}.btn-view-solutions{padding:4px 8px;font-size:10px}.view-all-link{font-size:12px}.difficulty-label,.difficulty-percentage{font-size:11px}.difficulty-bar-bg{height:5px}.difficulty-level-list{gap:12px}.user-dashboard-empty-state{padding:24px 10px}.user-dashboard-empty-icon{font-size:40px}.user-dashboard-empty-title{font-size:.875rem}.user-dashboard-empty-text{font-size:12px;margin-bottom:16px}}.App{min-height:100vh}.App .card{text-align:center;max-width:800px;margin:0 auto}.Toastify__toast-container{z-index:9999}.Toastify__toast{border-radius:8px;box-shadow:0 4px 12px color-mix(in srgb,var(--dark) 15%,transparent);font-family:Lato,sans-serif;font-size:14px;font-weight:400;padding:12px 16px;min-height:48px}.Toastify__toast--success{background-color:var(--green);color:var(--white)}.Toastify__toast--success .Toastify__toast-icon{color:var(--white)}.Toastify__toast--error{background-color:var(--red);color:var(--white)}.Toastify__toast--error .Toastify__toast-icon{color:var(--white)}.Toastify__toast--warning{background-color:var(--orange);color:var(--white)}.Toastify__toast--warning .Toastify__toast-icon{color:var(--white)}.Toastify__toast--info{background-color:var(--main);color:var(--white)}.Toastify__toast--info .Toastify__toast-icon{color:var(--white)}.Toastify__progress-bar{background-color:color-mix(in srgb,var(--white) 30%,transparent);height:3px}.Toastify__progress-bar--success,.Toastify__progress-bar--error,.Toastify__progress-bar--warning,.Toastify__progress-bar--info{background-color:color-mix(in srgb,var(--white) 40%,transparent)}.Toastify__close-button{color:var(--white);opacity:.8}.Toastify__close-button:hover{opacity:1}.dark-mode .Toastify__toast{background-color:var(--light);color:var(--dark)}.dark-mode .Toastify__toast--success{background-color:var(--green);color:var(--white)}.dark-mode .Toastify__toast--error{background-color:var(--red);color:var(--white)}.dark-mode .Toastify__toast--warning{background-color:var(--orange);color:var(--white)}.dark-mode .Toastify__toast--info{background-color:var(--main);color:var(--white)}.auth-illustration-container{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 20px;height:100%;background:linear-gradient(135deg,var(--blue-l) 0%,var(--white) 100%)}.auth-illustration{width:100%;max-width:400px;margin-bottom:0}.illustration-svg{width:100%;height:auto;max-height:300px}.auth-slider-wrapper{position:relative;width:100%;height:120px;margin-bottom:0;overflow:hidden}.auth-promo-text{position:absolute;top:0;left:0;width:100%;text-align:center;opacity:0;transform:translate(100%);transition:opacity 1s cubic-bezier(.4,0,.2,1),transform 1s cubic-bezier(.4,0,.2,1);pointer-events:none;will-change:opacity,transform}.auth-promo-text.active{opacity:1;transform:translate(0);pointer-events:auto}.auth-promo-text:not(.active){transform:translate(-100%)}.auth-promo-title{font-size:28px;font-weight:700;color:var(--dark);margin-bottom:10px}.auth-promo-subtitle{font-size:16px;color:var(--body);margin:0}.auth-nav-dots{display:flex;gap:8px;justify-content:center}.nav-dot{width:8px;height:8px;border-radius:50%;background-color:var(--outline);transition:all .3s ease}.nav-dot.active{width:24px;border-radius:4px;background-color:var(--main)}.dark-mode .auth-illustration-container{background:linear-gradient(135deg,var(--blue-l) 0%,var(--white) 100%)}.dark-mode .auth-promo-title{color:var(--dark)}.dark-mode .auth-promo-subtitle{color:var(--body)}.dark-mode .auth-illustration .auth-logo-fallback{color:var(--main)}@media (max-width: 768px){.auth-illustration-container{padding:0}.auth-promo-title{font-size:24px}.auth-promo-subtitle{font-size:14px}}@media (max-width: 568px){.auth-slider-wrapper,.auth-nav-dots{display:none!important}.auth-illustration img{max-width:160px!important;max-height:100px!important;margin-bottom:24px!important}.auth-illustration .auth-logo-fallback{font-size:32px!important;margin-bottom:24px!important}}.auth-page{min-height:100vh;background-color:var(--white);overflow-y:auto}.auth-container{padding:0;min-height:100vh}.auth-row{min-height:100vh;margin:0}.auth-left{background:linear-gradient(135deg,var(--blue-l) 0%,var(--white) 100%);display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative;padding:40px;overflow-y:auto}.auth-back-button{position:absolute;top:30px;left:30px;cursor:pointer;padding:8px;border-radius:8px;transition:background-color .2s}.auth-back-button:hover{background-color:color-mix(in srgb,var(--dark) 5%,transparent)}.auth-right{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px;position:relative;background-color:var(--white);overflow-y:auto}.auth-close-button{position:absolute;top:30px;right:30px;cursor:pointer;padding:8px;border-radius:8px;transition:background-color .2s;border:none;background:transparent}.auth-close-button:hover{background-color:color-mix(in srgb,var(--dark) 5%,transparent)}.auth-form-container{width:100%;max-width:450px}.auth-title{font-size:32px;font-weight:700;color:var(--dark);margin-bottom:12px}.auth-subtitle{font-size:16px;color:var(--body);margin-bottom:32px;line-height:1.5}.auth-mobile-display{font-size:18px;font-weight:600;color:var(--dark);margin-bottom:32px}.auth-form{margin-top:24px}.input-group .input-app:first-child+.auth-password-toggle,.input-group .form-control.input-app:first-child+.auth-password-toggle{border-left:none;border-radius:0 8px 8px 0}.input-group:focus-within .auth-password-toggle{border-color:var(--outline)}.auth-password-toggle{border:1px solid var(--outline)!important;border-left:none!important;background-color:transparent!important;color:var(--body);height:48px;padding:0 16px;border-radius:0 8px 8px 0;transition:border-color .2s,color .2s}.auth-password-toggle:hover{background-color:transparent;border-color:var(--outline);color:var(--dark)}.auth-password-toggle:focus{box-shadow:none;border-color:var(--outline);background-color:transparent;color:var(--dark)}.auth-password-toggle:focus-visible{outline:none;border-color:var(--outline);box-shadow:0 0 0 1px var(--outline);background-color:transparent}.auth-password-toggle:disabled{opacity:.6;cursor:not-allowed;background-color:transparent;border-color:var(--outline)}.auth-password-toggle svg path{stroke:var(--body)}.auth-divider{display:flex;align-items:center;text-align:center;margin:32px 0;color:var(--body);font-size:14px}.auth-divider:before,.auth-divider:after{content:"";flex:1;border-bottom:1px solid var(--outline)}.auth-divider span{padding:0 16px}.auth-social-buttons{display:flex;flex-direction:column;gap:12px}.auth-social-button{height:48px;border:1px solid var(--outline);border-radius:8px;background-color:var(--white);color:var(--dark);font-size:16px;font-weight:500;display:flex;align-items:center;justify-content:center;transition:all .2s}.auth-social-button:hover{background-color:var(--light);border-color:var(--outline);color:var(--dark)}.auth-social-button svg{flex-shrink:0}.auth-link{color:var(--main);text-decoration:none;font-weight:500;transition:color .2s}.auth-link:hover{color:var(--main-hover);text-decoration:underline}.auth-link-button{background:none;border:none;color:var(--main);text-decoration:none;font-weight:500;cursor:pointer;padding:0;transition:color .2s}.auth-link-button:hover{color:var(--main-hover);text-decoration:underline}.auth-switch-text{color:var(--body);font-size:14px;margin:0}.otp-container{display:flex;gap:12px;justify-content:center;margin:32px 0}.otp-input{width:48px;height:56px;border:1px solid var(--outline);border-radius:8px;text-align:center;font-size:24px;font-weight:600;color:var(--dark);transition:all .2s}.otp-input:focus{border-color:var(--outline);box-shadow:0 0 0 3px color-mix(in srgb,var(--outline) 20%,transparent);outline:none}.otp-input:disabled{background-color:var(--light);cursor:not-allowed}.otp-resend{text-align:center;margin-bottom:24px}.auth-resend-text{color:var(--body);font-size:14px}.auth-resend-timer{color:var(--main);font-size:14px;font-weight:500}.auth-checkbox{font-size:14px;color:var(--body)}.auth-checkbox .form-check-input{border-color:var(--outline);cursor:pointer}.auth-checkbox .form-check-input:checked{background-color:var(--main);border-color:var(--outline)}.auth-checkbox .form-check-input:focus{box-shadow:0 0 0 3px color-mix(in srgb,var(--outline) 20%,transparent)}.auth-checkbox .form-check-label{cursor:pointer;user-select:none}.auth-options-row{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center;justify-content:space-between}.auth-terms{text-align:center;margin-top:24px}.auth-terms-text{color:var(--body);font-size:12px;margin:0;line-height:1.5}.auth-divider-or{position:relative;text-align:center;margin:24px 0}.auth-divider-or hr{margin:0;border:none;border-top:1px solid var(--outline)}.auth-divider-or-text{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background-color:var(--white);padding:0 15px;color:var(--body);font-size:14px;font-weight:500}.dark-mode .auth-divider-or-text{background-color:var(--white);color:var(--dark)}.dark-mode .auth-page{background-color:var(--light)}.dark-mode .auth-left{background:linear-gradient(135deg,var(--blue-l) 0%,var(--white) 100%)}.dark-mode .auth-right{background-color:var(--white)}.dark-mode .auth-title,.dark-mode .auth-subtitle,.dark-mode .auth-mobile-display{color:var(--dark)}.dark-mode .auth-password-toggle{border-color:var(--outline);background-color:var(--white);color:var(--dark)}.dark-mode .auth-password-toggle:hover,.dark-mode .auth-password-toggle:focus{color:var(--dark);border-color:var(--outline)}.dark-mode .auth-password-toggle svg path{stroke:var(--dark)}.dark-mode .auth-google-button{background-color:var(--white);border-color:var(--outline);color:var(--dark)}.dark-mode .auth-google-button:hover{background-color:var(--light);border-color:var(--outline);color:var(--dark)}.dark-mode .auth-social-button{background-color:var(--white);border-color:var(--outline);color:var(--dark)}.dark-mode .auth-social-button:hover{background-color:var(--light);color:var(--dark)}.dark-mode .auth-switch-text{color:var(--body)}.dark-mode .auth-checkbox,.dark-mode .auth-checkbox .form-check-label{color:var(--dark)}.dark-mode .auth-resend-text,.dark-mode .auth-terms-text{color:var(--body)}.dark-mode .otp-input{background-color:var(--white);border-color:var(--outline);color:var(--dark)}.dark-mode .otp-input:disabled{background-color:var(--light)}.dark-mode .auth-loading .spinner-border,.dark-mode .auth-page .spinner-border,.dark-mode .auth-container .spinner-border{color:var(--main)}.auth-google-button{width:100%;border:1px solid var(--outline);border-radius:8px;padding:12px!important;display:flex;align-items:center;justify-content:center;gap:10px;background-color:var(--white);color:var(--dark);font-size:16px;font-weight:500;transition:all .2s}.auth-google-button:hover{background-color:var(--light);border-color:var(--outline)}.auth-google-button:disabled{opacity:.7;cursor:not-allowed}@media (max-width: 768px){.auth-row{flex-direction:column;min-height:100vh}.auth-left{padding:24px 20px}.auth-right{min-height:60vh;padding:24px 20px}.auth-form-container{padding:0 4px}.auth-title{font-size:28px;margin-bottom:10px}.auth-subtitle{font-size:14px;margin-bottom:24px}.auth-form{margin-top:20px}.form-label-app{font-size:15px;margin-bottom:6px}.auth-divider-or{margin:20px 0}.auth-divider-or-text{padding:0 12px;font-size:13px}.auth-google-button{font-size:14px;gap:8px}.auth-back-button,.auth-close-button{top:20px;left:20px;right:20px}.otp-container{gap:8px}.otp-input{width:40px;height:48px;font-size:20px}.auth-form .mb-3{margin-bottom:8px!important}}@media (max-width: 576px){.auth-left{padding:20px 16px}.auth-illustration img{margin-bottom:0!important}.auth-right{padding:20px 16px}.auth-form-container{max-width:100%;padding:0}.auth-title{font-size:24px;margin-bottom:8px}.auth-form{margin-top:16px}.form-label-app{font-size:14px}.input-app,.auth-password-toggle{padding:10px 14px}.auth-divider-or{margin:16px 0}.auth-divider-or-text{padding:0 10px;font-size:12px}.auth-switch-text{font-size:13px}.otp-input{width:36px;height:44px;font-size:18px}}@media (max-width: 375px){.auth-left,.auth-right{padding:16px 12px}.auth-title{font-size:20px}.input-app,.auth-password-toggle{padding:8px 12px;font-size:16px}.auth-checkbox{font-size:13px}.auth-options-row{gap:6px 12px}}.success-animation-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:color-mix(in srgb,var(--dark) 50%,transparent);display:flex;align-items:center;justify-content:center;z-index:9999;animation:fadeIn .3s ease-in-out}.success-animation-container{background:var(--white);border-radius:16px;padding:3rem 2rem;text-align:center;position:relative;box-shadow:0 20px 60px color-mix(in srgb,var(--dark) 30%,transparent);animation:slideUp .4s ease-out;overflow:hidden}.success-checkmark{width:80px;height:80px;margin:0 auto 1.5rem;position:relative}.checkmark{width:100%;height:100%}.checkmark-circle{stroke:var(--green);stroke-width:2;stroke-miterlimit:10;fill:none;animation:stroke .6s cubic-bezier(.65,0,.45,1) forwards}.checkmark-check{transform-origin:50% 50%;stroke:var(--green);stroke-width:3;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:48;stroke-dashoffset:48;animation:stroke .3s cubic-bezier(.65,0,.45,1) .8s forwards}.success-message{font-size:1.25rem;font-weight:600;color:var(--dark);margin:0;animation:fadeInUp .5s ease-out .3s both}.confetti-container{position:absolute;top:0;left:0;right:0;bottom:0;pointer-events:none;overflow:hidden}.confetti{position:absolute;width:10px;height:10px;top:-10px;animation:confettiFall 3s linear forwards}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(30px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes stroke{to{stroke-dashoffset:0}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes confettiFall{0%{transform:translateY(0) rotate(0);opacity:1}to{transform:translateY(100vh) rotate(720deg);opacity:0}}.dark-mode .success-animation-container{background:var(--light);color:var(--white)}.dark-mode .success-message{color:var(--white)}@media (max-width: 576px){.success-animation-container{padding:2rem 1.5rem;margin:1rem}.success-checkmark{width:60px;height:60px}.success-message{font-size:1rem}}*{margin:0;padding:0;box-sizing:border-box}:root{--bp-xs: 375px;--bp-sm: 576px;--bp-md: 768px;--bp-lg: 992px;--full-height: 100vh;--full-height-fallback: 100dvh;--main: #0081CC;--main-hover: #006BA3;--blue-l: #EBF7FF;--dark: #101213;--body: #666666;--placeholder: #999999;--disabled: #CCCCCC;--outline: #E9EAED;--light: #F8FAFD;--white: #FFFFFF;--green: #00CEB6;--green-l: #E4F6F4;--red: #FF6692;--red-l: #FBEFF0;--orange: #FFAE1F;--orange-l: #FCF7ED;--purple: #735DFF;--purple-l: #DAD8E8;--card-padding: 1.5rem;--card-radius: 16px;--card-shadow: 0 8px 24px rgba(0, 0, 0, .05);--chart-grid-gap: 1.5rem}.dark-mode{--dark: #DDDDDD;--body: #B3B3B3;--placeholder: #999999;--disabled: #555555;--outline: #2f2f2f;--light: #141414;--white: #1f1f1f;--blue-l: #1a3a4a;--green-l: #1a3a38;--red-l: #3a1a25;--orange-l: #3d3520;--purple:#8B7CFF}html{min-height:100vh;min-height:100dvh;min-height:-webkit-fill-available;background-color:var(--light)}body{font-family:Lato,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;min-height:100dvh;min-height:-webkit-fill-available;background-color:var(--light)}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}.bg-main{background-color:var(--main)!important}.bg-blue-l{background-color:var(--blue-l)!important}.bg-dark{background-color:var(--dark)!important}.bg-body{background-color:var(--body)!important}.bg-outline{background-color:var(--outline)!important}.bg-light{background-color:var(--light)!important}.bg-white{background-color:var(--white)!important}.bg-green{background-color:var(--green)!important}.bg-green-l{background-color:var(--green-l)!important}.bg-red{background-color:var(--red)!important}.bg-red-l{background-color:var(--red-l)!important}.bg-orange{background-color:var(--orange)!important}.bg-orange-l{background-color:var(--orange-l)!important}.bg-purple{background-color:var(--purple)!important}.bg-purple-l{background-color:var(--purple-l)!important}.text-main{color:var(--main)!important}.text-blue-l{color:var(--blue-l)!important}.text-dark{color:var(--dark)!important}.text-body{color:var(--body)!important}.text-outline{color:var(--outline)!important}.text-light{color:var(--light)!important}.text-white{color:var(--white)!important}.text-green{color:var(--green)!important}.text-green-l{color:var(--green-l)!important}.text-red{color:var(--red)!important}.text-red-l{color:var(--red-l)!important}.text-orange{color:var(--orange)!important}.text-orange-l{color:var(--orange-l)!important}.text-purple{color:var(--purple)!important}.text-purple-l{color:var(--purple-l)!important}.border-main{border-color:var(--main)!important}.border-blue-l{border-color:var(--blue-l)!important}.border-dark{border-color:var(--dark)!important}.border-body{border-color:var(--body)!important}.border-outline{border-color:var(--outline)!important}.border-light{border-color:var(--light)!important}.border-white{border-color:var(--white)!important}.border-green{border-color:var(--green)!important}.border-green-l{border-color:var(--green-l)!important}.border-red{border-color:var(--red)!important}.border-red-l{border-color:var(--red-l)!important}.border-orange{border-color:var(--orange)!important}.border-orange-l{border-color:var(--orange-l)!important}.border-purple{border-color:var(--purple)!important}.border-purple-l{border-color:var(--purple-l)!important}.text-12{font-size:12px!important}.text-14{font-size:14px!important}.text-16{font-size:16px!important}.text-20{font-size:20px!important}.text-24{font-size:24px!important}@media (max-width: 991px){.text-24{font-size:22px!important}.text-20{font-size:18px!important}.text-16{font-size:15px!important}.text-14{font-size:13px!important}.text-12{font-size:11px!important}}@media (max-width: 768px){.text-24{font-size:20px!important}.text-20{font-size:17px!important}.text-16{font-size:14px!important}.text-14{font-size:13px!important}.text-12{font-size:11px!important}}@media (max-width: 576px){.text-24{font-size:18px!important}.text-20{font-size:16px!important}.text-16{font-size:14px!important}.text-14{font-size:12px!important}.text-12{font-size:10px!important}}@media (max-width: 568px){.text-24{font-size:17px!important}.text-20{font-size:15px!important}.text-16{font-size:13px!important}.text-14{font-size:12px!important}.text-12{font-size:10px!important}}.font-light{font-weight:300!important}.font-regular{font-weight:400!important}.font-medium{font-weight:500!important}.font-semibold{font-weight:600!important}.font-bold{font-weight:700!important}.bottom-border{border-bottom:1px solid var(--outline)!important}.btn-app-primary{padding:12px 24px;background-color:var(--main)!important;border:none;border-radius:4px;font-size:16px;font-weight:600;color:var(--white);display:inline-flex;align-items:center;justify-content:center;transition:all .2s;cursor:pointer}.btn-app-primary:hover{background-color:var(--main-hover)!important;color:var(--white)}.btn-app-primary:disabled{background-color:var(--disabled)!important;cursor:not-allowed;opacity:.8}.btn-app-primary svg{flex-shrink:0}.btn-app-secondary{padding:12px 24px;border:1px solid var(--outline);border-radius:8px;background-color:var(--white);color:var(--main);font-size:16px;font-weight:500;display:inline-flex;align-items:center;justify-content:center;transition:all .2s;cursor:pointer}.btn-app-secondary:hover{background-color:var(--light);border-color:var(--main);color:var(--main)}.btn-app-secondary:disabled{opacity:.7;cursor:not-allowed}.btn-app-secondary svg{flex-shrink:0}.dark-mode .btn-app-primary,.dark-mode .btn-app-primary:hover,.dark-mode .btn-app-primary:disabled{color:var(--dark)!important}.dark-mode .btn-app-secondary{background-color:transparent;border-color:var(--outline);color:var(--dark)!important}.dark-mode .btn-app-secondary:hover{background-color:var(--light);border-color:var(--main);color:var(--dark)!important}.dark-mode .btn-app-secondary:disabled{color:rgba(255,255,255,.7)!important}.dark-mode .table .btn-app-primary,.dark-mode .card-body .btn-app-primary,.dark-mode .modal-body .btn-app-primary,.dark-mode .table .btn-app-secondary,.dark-mode .card-body .btn-app-secondary,.dark-mode .modal-body .btn-app-secondary{color:var(--dark)!important}.dark-mode .btn-outline-primary,.dark-mode .btn-outline-secondary{color:var(--dark)!important;border-color:var(--outline);background-color:var(--white)}.dark-mode .btn-outline-primary:hover,.dark-mode .btn-outline-secondary:hover{color:var(--main)!important;background-color:var(--light);border-color:var(--main)}.dark-mode .card,.dark-mode .card-header{background-color:var(--white);border-color:var(--outline);color:var(--dark)}.dark-mode .card-body{background-color:var(--white);color:var(--dark)}.dark-mode .modal-content,.dark-mode .modal-header{background-color:var(--white);border-color:var(--outline);color:var(--dark)}.dark-mode .modal-body{background-color:var(--white);color:var(--dark)}.dark-mode .modal-footer{background-color:var(--white);border-color:var(--outline);color:var(--dark)}.dark-mode .modal-title{color:var(--dark)}.dark-mode .table>:not(caption)>*>*{background-color:var(--white);border-bottom-color:var(--outline);color:var(--dark)}.dark-mode .table>:not(caption)>thead>*>*{background-color:var(--outline);color:var(--dark);border-bottom-color:var(--outline)}.dark-mode .table>:not(caption)>tbody>*>*{background-color:var(--white);color:var(--dark);border-bottom-color:var(--outline)}.dark-mode .table tbody tr:hover>*{background-color:var(--light);color:var(--dark)}.dark-mode .result-dropdown .dropdown-menu{background-color:var(--white);border-color:var(--outline)}.dark-mode .result-dropdown .dropdown-item{color:var(--dark)}.dark-mode .result-dropdown .dropdown-item:hover,.dark-mode .result-dropdown .dropdown-item:focus{background-color:var(--light);color:var(--dark)}.dark-mode .result-dropdown .dropdown-item.active{color:var(--on-main)!important}@media (max-width: 768px){.btn-app-primary,.btn-app-secondary{min-height:44px;padding:10px 20px;font-size:15px}}@media (max-width: 576px){.btn-app-primary,.btn-app-secondary{min-height:40px;padding:10px 16px;font-size:14px}}.btn-link.btn-app-primary,.btn-link.btn-app-secondary,.btn-link.auth-google-button,.btn-link.auth-password-toggle,.btn-link.btn-app-primary:hover,.btn-link.auth-google-button:hover,.btn-link.btn-app-secondary:hover{text-decoration:none}.input-app{height:48px;border:1px solid var(--outline);border-radius:8px;padding:12px 16px;font-size:16px;color:var(--dark);background-color:var(--white);transition:all .2s;width:100%}.input-app:focus{border-color:var(--main);box-shadow:0 0 0 3px color-mix(in srgb,var(--main) 12%,transparent);outline:none}.input-app::placeholder{color:var(--placeholder)}.input-app.is-invalid{border-color:var(--red)}.input-app.is-invalid:focus{border-color:var(--red);box-shadow:0 0 0 3px color-mix(in srgb,var(--red) 12%,transparent)}.form-label-app{font-size:16px;font-weight:500;color:var(--dark);margin-bottom:8px;display:block}.form-error-app{display:block;margin-top:4px;font-size:14px;color:var(--red)}.input-app-icon{background-color:var(--white);border:1px solid var(--outline);padding:0 16px;height:48px;display:flex;align-items:center;justify-content:center}.input-app-icon svg{width:16px;height:16px}.input-group .input-app-icon:first-child{border-radius:8px 0 0 8px;border-right:none}.input-group .input-app-icon:first-child+.input-app,.input-group .input-app-icon:first-child+.form-control.input-app{border-radius:0 8px 8px 0;border-left:none}.input-group:focus-within .input-app-icon:first-child{border-color:var(--main);border-right:none}.input-group:focus-within .input-app-icon:first-child+.input-app,.input-group:focus-within .input-app-icon:first-child+.form-control.input-app{border-left:1px solid var(--main)}.input-group .input-app:first-child,.input-group .form-control.input-app:first-child{border-radius:8px 0 0 8px;border-right:none}.input-group .input-app:first-child+.input-app-icon,.input-group .form-control.input-app:first-child+.input-app-icon{border-radius:0 8px 8px 0;border-left:none}.input-group:focus-within .input-app:first-child,.input-group:focus-within .form-control.input-app:first-child{border-right:1px solid var(--main)}.input-group:focus-within .input-app:first-child+.input-app-icon,.input-group:focus-within .form-control.input-app:first-child+.input-app-icon{border-color:var(--main);border-left:none}.input-group .input-app.is-invalid~.input-app-icon,.input-group .form-control.input-app.is-invalid~.input-app-icon,.input-group .input-app.is-invalid,.input-group .form-control.input-app.is-invalid{border-color:var(--red)}.dark-mode .input-app{background-color:var(--white);border-color:var(--outline);color:var(--dark)}.dark-mode .input-app:focus{border-color:var(--main);background-color:var(--white)}.dark-mode .form-label-app{color:var(--dark)}.dark-mode .input-app-icon{background-color:var(--white);border-color:var(--outline)}.dark-mode .input-app-icon svg path{stroke:var(--body)}.btn.bg-main,.btn-primary.bg-main{background-color:var(--main)!important;border-color:var(--main)!important}.header-actions button{width:max-content}.btn.bg-main:hover,.btn-primary.bg-main:hover{background-color:var(--main)!important;border-color:var(--main)!important;opacity:.85}.alert.bg-blue-l{background-color:var(--blue-l)!important}.alert.bg-green-l{background-color:var(--green-l)!important}.alert.text-green{color:var(--green)!important}.alert.bg-red-l{background-color:var(--red-l)!important}.alert.text-red{color:var(--red)!important}.alert.bg-orange-l{background-color:var(--orange-l)!important}.alert.text-orange{color:var(--orange)!important}.alert.bg-purple-l{background-color:var(--purple-l)!important}.alert.text-purple{color:var(--purple)!important}.toast.bg-success{background-color:var(--green)!important}.toast.bg-danger{background-color:var(--red)!important}.toast.bg-warning{background-color:var(--orange)!important}.toast.bg-info,.pagination-controls .btn-primary{background-color:var(--main)!important}.pagination-controls .btn-outline-primary{background-color:var(--white)!important;border-color:var(--outline)!important;color:var(--body)!important}.pagination-controls .btn-outline-primary:hover{color:var(--white)!important;background-color:var(--main)!important}.h1,.h2,.h3,.h4,.h5,.h6,h1,h2,h3,h4,h5,h6{margin-bottom:0!important}.header-actions .border-main:hover{background-color:var(--blue-l)!important}*{scrollbar-width:thin;scrollbar-color:var(--body) var(--light)}*::-webkit-scrollbar{width:4px;height:4px}*::-webkit-scrollbar-track{background:var(--light)!important;border-radius:8px}*::-webkit-scrollbar-thumb{background:var(--body)!important;border-radius:8px}*::-webkit-scrollbar-thumb:hover{background:var(--dark)!important}.content-area{padding:16px!important}@media (max-width: 768px){.content-area{padding:12px!important}}@media (max-width: 576px){.content-area{padding:8px!important}}.level-badge{display:inline-block;padding:6px 12px;border-radius:999px;font-size:14px;font-weight:500;transition:all .2s}.level-badge.level-easy{background-color:var(--green-l)!important;color:var(--green);border-color:var(--green)}.level-badge.level-mid{background-color:var(--orange-l)!important;color:var(--orange);border-color:var(--orange)}.level-badge.level-hard{background-color:var(--red-l)!important;color:var(--red);border-color:var(--red)}.level-badge:not(.level-easy):not(.level-mid):not(.level-hard){background-color:var(--white);color:var(--body);border-color:var(--outline)}.dark-mode .level-badge.level-easy{background-color:color-mix(in srgb,var(--green) 22%,var(--white))!important;color:color-mix(in srgb,var(--green) 85%,var(--dark))}.dark-mode .level-badge.level-mid{background-color:color-mix(in srgb,var(--orange) 22%,var(--white))!important;color:color-mix(in srgb,var(--orange) 90%,var(--dark))}.dark-mode .level-badge.level-hard{background-color:color-mix(in srgb,var(--red) 22%,var(--white))!important;color:color-mix(in srgb,var(--red) 90%,var(--dark))}.dark-mode .level-badge:not(.level-easy):not(.level-mid):not(.level-hard){background-color:color-mix(in srgb,var(--body) 25%,var(--white))!important;color:var(--dark)}.dark-mode .topic-badge{background-color:color-mix(in srgb,var(--main) 22%,var(--white));color:color-mix(in srgb,var(--main) 90%,var(--dark))}.question-text-content{color:var(--dark)}.dark-mode .question-text-content{color:var(--dark)!important}.dark-mode .palette-section-title,.dark-mode .test-palette-drawer-title{background-color:var(--outline);color:var(--dark);border-bottom:1px solid var(--outline)}.page-header{display:flex;flex-direction:column;flex-shrink:0;background-color:var(--light)}.page-title{font-size:16px!important;font-weight:600!important;color:var(--main)!important;padding:0 8px 10px;border-bottom:1px solid var(--outline)}.clickable-breadcrumb .link{cursor:pointer;color:var(--body)!important;padding:0 16px 9px}.clickable-breadcrumb .link:hover{color:var(--main)!important}.clickable-breadcrumb .sep{color:var(--body);margin:0 6px}.clickable-breadcrumb .current{color:var(--main)!important;border-bottom:3px solid var(--main)!important;padding:0 16px 9px}.loading-container{display:flex;justify-content:center;align-items:center;min-height:400px}.dropdown-toggle-app,.result-dropdown .result-dropdown-toggle,.result-dropdown-toggle{border:1px solid var(--outline);color:var(--body);font-size:14px;font-weight:500;padding:8px 12px;border-radius:6px;background:var(--white)}.dropdown-toggle-app:hover,.dropdown-toggle-app:focus,.result-dropdown .result-dropdown-toggle:hover,.result-dropdown .result-dropdown-toggle:focus,.result-dropdown-toggle:hover,.result-dropdown-toggle:focus{background-color:var(--light);border-color:var(--outline);color:var(--body)}.result-dropdown .dropdown-menu{border:1px solid var(--outline);border-radius:6px;box-shadow:0 4px 16px color-mix(in srgb,var(--dark) 12%,transparent);padding:4px 0}.result-dropdown .dropdown-item{font-size:14px;color:var(--dark);padding:8px 12px}.result-dropdown .dropdown-item:hover,.result-dropdown .dropdown-item:focus{background-color:var(--light);color:var(--dark)}.result-dropdown .dropdown-item.active{background-color:var(--main);color:var(--white)}.chart-card{box-shadow:none!important}