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.2s;display:flex}.teach-asai-btn:hover{background:rgba(var(--step-color-rgb),.15);transform:scale(1.02)}.card-progress-section{width:100%;margin-top:auto}.card-progress-bar{background:var(--section-highlight);border-radius:2px;width:100%;height:4px;margin-bottom:8px;overflow:hidden}.card-progress-fill{background:var(--step-color);height:100%;box-shadow:0 0 10px rgba(var(--step-color-rgb),.4)}.card-progress-text{color:var(--text-faded);font-size:11px;font-weight:700}.stats-bar{background-color:var(--input-bg);border-radius:20px;grid-template-columns:1fr 1fr 1.2fr auto;align-items:center;gap:32px;width:100%;margin-top:24px;padding:24px 32px;display:grid}.stats-item{align-items:center;gap:16px;display:flex}.stats-circle-container{border:4px solid var(--section-highlight);border-radius:50%;justify-content:center;align-items:center;width:52px;height:52px;display:flex;position:relative}.stats-circle-progress{border-right:4px solid var(--biology-color);border-top:4px solid var(--biology-color);border-bottom:4px solid #0000;border-left:4px solid #0000;border-radius:50%;width:52px;height:52px;position:absolute;top:-4px;left:-4px;transform:rotate(45deg)}.stats-percentage{color:var(--text-primary);font-size:14px;font-weight:800}.stats-content h4{color:var(--text-primary);margin-bottom:2px;font-size:15px;font-weight:700}.stats-content p{color:var(--text-secondary);opacity:.8;font-size:12px}.streak-icon{font-size:24px}.streak-days{color:var(--accent);font-weight:800}.score-badge{clip-path:polygon(25% 0,75% 0,100% 50%,75% 100%,25% 100%,0 50%);background:#4ade801a;justify-content:center;align-items:center;width:52px;height:52px;display:flex}.score-badge,.score-main{color:#4ade80;font-size:16px;font-weight:800}.score-total{color:var(--text-secondary);font-weight:500}.stats-chevron{color:var(--text-tertiary);opacity:.5}.sidebar-footer{flex-direction:column;gap:8px;display:flex;border-top:none!important;padding:16px!important}.sidebar-footer-nav{flex-direction:column;gap:4px;margin-bottom:8px;display:flex}.footer-nav-item{color:var(--text-secondary);cursor:pointer;border-radius:10px;align-items:center;gap:12px;padding:10px 12px;font-size:14px;font-weight:500;transition:all .2s;display:flex}.footer-nav-item:hover{background:var(--section-highlight);color:var(--text-primary)}.profile-card{cursor:pointer;border-radius:14px;flex-direction:row;align-items:center;gap:10px;padding:10px 12px;transition:background .2s;display:flex}.profile-card:hover{background:var(--nav-active-bg)}.profile-main-info{flex:1;align-items:center;gap:10px;min-width:0;display:flex}.profile-avatar-wrapper{background:var(--nav-active-bg);border-radius:50%;flex-shrink:0;width:38px;height:38px;position:relative;overflow:hidden}.profile-avatar-wrapper img{object-fit:cover;width:100%;height:100%}.profile-avatar-wrapper .header-profile-avatar{width:100%;height:100%;font-size:15px}.profile-text-info{flex-direction:column;min-width:0;display:flex}.profile-name{color:var(--text-primary);font-size:13.5px;font-weight:700}.profile-name,.profile-subtitle{white-space:nowrap;text-overflow:ellipsis;font-family:Plus Jakarta Sans,Inter,sans-serif;overflow:hidden}.profile-subtitle{color:var(--text-secondary);font-size:10.5px}.streak-badge-mini{background:var(--nav-active-bg);border:1.5px solid var(--border-color);border-radius:50%;flex-direction:row;flex-shrink:0;justify-content:center;align-items:center;gap:2px;width:56px;height:56px;display:flex}.streak-icon-mini{font-size:14px;line-height:1}.streak-info-mini{align-items:center;display:flex}.streak-days-mini{color:var(--text-primary);font-family:Plus Jakarta Sans,Inter,sans-serif;font-size:13px;font-weight:800;line-height:1}.streak-label-mini{display:none}.collapsed .profile-card{align-items:center;padding:8px}.collapsed .profile-subtitle,.collapsed .profile-text-info,.collapsed .streak-badge-mini{display:none}.history-popup{background:var(--surface-card);-webkit-backdrop-filter:blur(16px);z-index:10000;pointer-events:auto;border:none;border-radius:12px;min-width:220px;max-width:280px;padding:8px;animation:slideInFromLeft .2s cubic-bezier(.4,0,.2,1);position:fixed;box-shadow:0 10px 40px #0003}@keyframes slideInFromLeft{0%{opacity:0;transform:translate(-8px)}to{opacity:1;transform:translate(0)}}.history-popup-title-bar{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;opacity:.7;padding:8px 12px 6px;font-size:11px;font-weight:700}.history-popup-separator{display:none}.history-popup-list{flex-direction:column;gap:2px;max-height:300px;display:flex;overflow-y:auto}.history-popup-date{color:var(--text-secondary);text-transform:uppercase;opacity:.5;letter-spacing:.3px;padding:12px 12px 4px;font-size:10px;font-weight:700}.history-popup-item{color:var(--text-primary);cursor:pointer;border-radius:8px;align-items:center;gap:10px;padding:8px 12px;font-size:13px;text-decoration:none;transition:background .2s;display:flex}.history-popup-item:hover{background:var(--section-highlight)}.history-popup-item-text{white-space:nowrap;text-overflow:ellipsis;flex:1;line-height:1.4;overflow:hidden}.history-popup-footer{border-top:none;margin-top:8px;padding-top:8px}.history-popup-see-all{color:var(--text-primary);cursor:pointer;border-radius:8px;align-items:center;gap:10px;padding:8px 12px;font-size:13px;text-decoration:none;transition:background .2s;display:flex}.history-popup-see-all:hover{background:var(--section-highlight)}.history-popup-empty{text-align:center;color:var(--text-secondary);opacity:.6;padding:24px 12px;font-size:13px}.curriculum-picker-overlay{background:var(--overlay-bg);-webkit-backdrop-filter:blur(16px);z-index:11000;justify-content:center;align-items:center;padding:24px;animation:fadeIn .18s;display:flex;position:fixed;inset:0}.curriculum-picker-modal{background:var(--sidebar-bg);border:1px solid var(--border-color);width:100%;max-width:680px;max-height:78vh;box-shadow:0 32px 96px var(--modal-shadow),0 0 0 .5px #ffffff0a inset;border-radius:20px;flex-direction:column;animation:modalScaleUp .28s cubic-bezier(.16,1,.3,1);display:flex;overflow:hidden}.curriculum-picker-header{border-bottom:1px solid var(--border-color);padding:24px 24px 0}.curriculum-picker-top{justify-content:space-between;align-items:flex-start;margin-bottom:20px;display:flex}.curriculum-picker-title{color:var(--text-primary);letter-spacing:-.3px;margin:0 0 4px;font-size:20px;font-weight:600}.curriculum-picker-subtitle{color:var(--text-tertiary);margin:0;font-size:13px}.curriculum-picker-close{width:30px;height:30px;color:var(--text-tertiary);cursor:pointer;background:0 0;border:none;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;transition:background .15s,color .15s;display:flex}.curriculum-picker-close:hover{background:var(--bg-active);color:var(--text-primary)}.curriculum-picker-search{margin-bottom:16px;position:relative}.curriculum-picker-search-icon{color:var(--text-tertiary);pointer-events:none;position:absolute;top:50%;left:0;transform:translateY(-50%)}.curriculum-picker-search input{border:none;border-bottom:1px solid var(--border-color);width:100%;color:var(--text-primary);box-sizing:border-box;background:0 0;outline:none;padding:8px 0 12px 28px;font-size:15px;font-weight:400;transition:border-color .15s}.curriculum-picker-search input::placeholder{color:var(--text-tertiary);font-weight:400}.curriculum-picker-search input:focus{border-bottom-color:var(--accent)}.curriculum-picker-tabs{scrollbar-width:none;gap:2px;padding-bottom:0;display:flex;overflow-x:auto}.curriculum-picker-tabs::-webkit-scrollbar{display:none}.curriculum-picker-tab{color:var(--text-tertiary);cursor:pointer;white-space:nowrap;background:0 0;border:none;border-bottom:2px solid #0000;align-items:center;gap:6px;margin-bottom:-1px;padding:9px 14px 10px;font-size:13px;font-weight:500;transition:color .15s,border-color .15s;display:flex}.curriculum-picker-tab:hover{color:var(--text-primary)}.curriculum-picker-tab.active{color:var(--accent);border-bottom-color:var(--accent)}.curriculum-picker-tab-count{background:var(--section-highlight);color:var(--text-tertiary);border-radius:10px;padding:1px 6px;font-size:11px;font-weight:600}.curriculum-picker-tab.active .curriculum-picker-tab-count{background:rgba(var(--accent-rgb),.15);color:var(--accent)}.curriculum-picker-body{scrollbar-width:thin;scrollbar-color:var(--bg-tertiary) transparent;flex:1;padding:20px 24px 24px;overflow-y:auto}.curriculum-picker-body::-webkit-scrollbar{width:4px}.curriculum-picker-body::-webkit-scrollbar-track{background:0 0}.curriculum-picker-body::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:4px}.curriculum-picker-group-label{letter-spacing:.08em;text-transform:uppercase;color:var(--text-tertiary);margin-bottom:10px;font-size:11px;font-weight:700}.curriculum-picker-group+.curriculum-picker-group{margin-top:24px}.curriculum-picker-grid{grid-template-columns:repeat(auto-fill,minmax(188px,1fr));gap:8px;display:grid}.curriculum-picker-card{border:1px solid var(--border-color);background:var(--surface-card);cursor:pointer;text-align:left;border-radius:12px;flex-direction:column;padding:14px 14px 12px;transition:border-color .15s,background .15s,transform .15s,box-shadow .15s;display:flex;position:relative;overflow:hidden}.curriculum-picker-card:hover{border-color:var(--nav-active-bg);background:var(--bg-active);box-shadow:0 4px 16px var(--drop-shadow);transform:translateY(-1px)}.curriculum-picker-card.selected{border-color:var(--accent);background:rgba(var(--accent-rgb),.06)}.curriculum-picker-card.selected:hover{border-color:var(--accent);background:rgba(var(--accent-rgb),.1)}.curriculum-card-accent{opacity:.5;border-radius:2px 2px 0 0;height:2px;transition:opacity .15s;position:absolute;top:0;left:0;right:0}.curriculum-picker-card.selected .curriculum-card-accent,.curriculum-picker-card:hover 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auto;display:block}.all-files-modal-overlay{background:var(--overlay-bg);-webkit-backdrop-filter:blur(16px);z-index:11000;justify-content:center;align-items:center;padding:24px;animation:fadeIn .18s;display:flex;position:fixed;inset:0}.all-files-modal{background-color:var(--main-bg);border:1px solid var(--border-color);border-radius:16px;flex-direction:column;width:90%;max-width:900px;height:80vh;min-height:500px;animation:modalScaleUp .3s cubic-bezier(.16,1,.3,1);display:flex;overflow:hidden;box-shadow:0 20px 60px #00000073}.all-files-modal-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:flex-start;padding:24px 28px 18px;display:flex}.all-files-modal-header .header-titles{flex-direction:column;gap:4px;display:flex}.all-files-modal-header h2{color:var(--text-primary);margin:0;font-size:22px;font-weight:700}.all-files-modal-header .header-subtitle{color:var(--text-secondary);margin:0;font-size:13.5px}.all-files-modal-close{background:var(--nav-active-bg);cursor:pointer;color:var(--text-secondary);border:none;border-radius:10px;justify-content:center;align-items:center;padding:8px;transition:all .2s;display:flex}.all-files-modal-close:hover{background:var(--bg-active);color:var(--text-primary)}.modal-divider{background:var(--border-color);height:1px;margin:0}.all-files-modal-body{flex-direction:column;flex:1;gap:12px;padding:20px 28px 28px;display:flex;overflow:hidden}.curriculum-sticky-header{flex-direction:column;flex-shrink:0;gap:10px;display:flex}.curriculum-section-header{justify-content:space-between;align-items:center;display:flex}.curriculum-section-header h3{color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.8px;margin:0;font-size:11px;font-weight:700}.curriculum-section-header .subject-count{color:var(--text-secondary);font-size:12px;font-weight:500}.curriculum-filters{scrollbar-width:none;-ms-overflow-style:none;gap:12px;margin-bottom:8px;padding:0 4px 16px;display:flex;overflow-x:auto}.curriculum-filters::-webkit-scrollbar{display:none}.curriculum-filters .filter-chip{background:var(--tool-bg);border:1px solid var(--border-color);cursor:pointer;border-radius:12px;flex-direction:column;flex-shrink:0;gap:2px;min-width:130px;padding:10px 16px;transition:all .25s;display:flex}.curriculum-filters .filter-chip:hover{border-color:var(--accent);background:var(--bg-active)}.curriculum-filters .filter-chip.active{background:var(--accent);border-color:var(--accent);box-shadow:0 0 16px #ffc10740}.curriculum-filters .filter-chip.active .filter-label{color:#000}.curriculum-filters .filter-chip.active .filter-desc{color:#000000b3}.curriculum-filters .filter-chip .filter-label{color:var(--text-primary);font-size:13px;font-weight:700}.curriculum-filters .filter-chip .filter-desc{color:var(--text-tertiary);font-size:9.5px}.curriculum-search-container{width:100%}.curriculum-search-container .search-wrapper{width:100%;position:relative}.curriculum-search-container .search-input{background:var(--input-bg);border:1px solid var(--border-color);width:100%;color:var(--text-primary);border-radius:12px;outline:none;padding:12px 16px 12px 42px;font-size:14.5px;transition:border-color .2s,box-shadow .2s}.curriculum-search-container .search-input:focus{border-color:var(--accent);box-shadow:0 0 0 2px #ffffff0d}.curriculum-search-container .search-icon{color:var(--text-tertiary);pointer-events:none;position:absolute;top:50%;left:16px;transform:translateY(-50%)}.curricula-list{flex-direction:column;flex:1;gap:16px;padding-bottom:8px;display:flex;overflow-y:auto}.curricula-list .curriculum-card{background:var(--tool-bg);border:1px solid var(--border-color);border-radius:16px;flex-direction:row;justify-content:space-between;align-items:center;gap:24px;padding:24px;transition:transform .25s,border-color .25s,box-shadow .25s;display:flex}.curricula-list .curriculum-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 8px 24px #0003}.curricula-list .curriculum-card .card-content{flex-direction:column;flex:1;gap:12px;display:flex}.curricula-list .curriculum-card .card-header-meta{align-items:center;gap:8px;display:flex}.curricula-list .curriculum-card .card-header-meta span{letter-spacing:.3px;border-radius:8px;padding:4px 10px;font-size:10px;font-weight:700}.curricula-list .curriculum-card .card-header-meta .badge-igcse{color:#4f8df5;background:#2b72e526}.curricula-list .curriculum-card .card-header-meta .badge-code{color:var(--text-secondary);background:#ffffff0a}.curricula-list .curriculum-card h3{color:var(--text-primary);margin:0;font-size:22px;font-weight:700;line-height:1.2}.curricula-list .curriculum-card .card-description{color:var(--text-secondary);margin:0;font-size:13.5px;line-height:1.5}.curricula-list .curriculum-card .card-footer-meta{flex-wrap:wrap;gap:16px;margin-top:4px;display:flex}.curricula-list .curriculum-card .card-footer-meta .meta-item{color:var(--text-secondary);align-items:center;gap:8px;font-size:13px;display:flex}.curricula-list .curriculum-card .card-footer-meta .meta-item i{font-size:13px}.curricula-list .curriculum-card .card-actions{flex-direction:column;flex-shrink:0;gap:10px;min-width:170px;display:flex}.curricula-list .curriculum-card .card-actions button{cursor:pointer;border:none;border-radius:10px;justify-content:center;align-items:center;gap:6px;width:100%;padding:12px 20px;font-size:13.5px;font-weight:700;transition:background .2s,color .2s,border-color .2s;display:flex}.curricula-list .curriculum-card .card-actions .btn-start-learning{background:var(--accent);color:#000}.curricula-list .curriculum-card .card-actions .btn-start-learning:hover{opacity:.9}.curricula-list .curriculum-card .card-actions .btn-view-syllabus{color:var(--text-primary);background:0 0;border:1px solid #ffffff26}.curricula-list .curriculum-card .card-actions .btn-view-syllabus:hover{background:var(--bg-active);border-color:#ffffff4d}.logout-overlay{z-index:10000;-webkit-backdrop-filter:blur(16px);background:#0009;justify-content:center;animation:logout-fade-in .2s ease-out;position:fixed;inset:0}.logout-overlay,.logout-popup{align-items:center;display:flex}.logout-popup{background:var(--modal-card-bg,var(--surface-card));border:1px solid var(--border-color);border-radius:24px;flex-direction:column;width:90%;max-width:400px;padding:40px 32px;animation:logout-scale-up .3s cubic-bezier(.34,1.56,.64,1);box-shadow:0 24px 60px #0000004d}.logout-icon{color:#ef4444;background:#ef44441a;border-radius:50%;justify-content:center;align-items:center;width:52px;height:52px;margin-bottom:20px;display:flex}.logout-title{color:var(--text-primary);text-align:center;letter-spacing:-.02em;margin:0 0 10px;font-size:1.25rem;font-weight:700;line-height:1.3}.logout-subtitle{color:var(--text-secondary);text-align:center;margin:0 0 28px;font-size:.875rem;line-height:1.5}.logout-subtitle strong{color:var(--text-primary);font-weight:600}.logout-btn-group{flex-direction:column;gap:10px;width:100%;display:flex}.logout-confirm-btn{color:#fff;cursor:pointer;background:#ef4444;border:none;border-radius:999px;width:100%;padding:12px 20px;font-size:.9rem;font-weight:600;transition:opacity .15s,transform .15s}.logout-confirm-btn:hover{opacity:.88;transform:translateY(-1px)}.logout-confirm-btn:active{transform:translateY(0)}.logout-cancel-btn{border:1px solid var(--border-color);width:100%;color:var(--text-primary);cursor:pointer;background:0 0;border-radius:999px;padding:12px 20px;font-size:.9rem;font-weight:600;transition:background .15s,border-color .15s,transform .15s}.logout-cancel-btn:hover{background:var(--bg-tertiary);transform:translateY(-1px)}.logout-cancel-btn:active{transform:translateY(0)}@keyframes logout-fade-in{0%{opacity:0}to{opacity:1}}@keyframes logout-scale-up{0%{opacity:0;transform:scale(.93)}to{opacity:1;transform:scale(1)}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-backdrop-blur{syntax:"*";inherits:false}@property --tw-backdrop-brightness{syntax:"*";inherits:false}@property --tw-backdrop-contrast{syntax:"*";inherits:false}@property --tw-backdrop-grayscale{syntax:"*";inherits:false}@property --tw-backdrop-hue-rotate{syntax:"*";inherits:false}@property --tw-backdrop-invert{syntax:"*";inherits:false}@property --tw-backdrop-opacity{syntax:"*";inherits:false}@property --tw-backdrop-saturate{syntax:"*";inherits:false}@property --tw-backdrop-sepia{syntax:"*";inherits:false}