:root{--brand-primary:#5e8e3b;--brand-navy:#4a321a;--brand-cyan:#5e8e3b;--brand-gold:#eaa135;--brand-accent:#eaa135;--bg-portal:#faf6ee;--bg-surface:#fff;--border-light:#e8e0d2;--text-primary:#2e1e12;--text-secondary:#5e4e40;--text-muted:#9a8a7a;--status-success:#16a34a;--status-warning:#f59e0b;--status-error:#ef4444;--status-info:#0ea5e9;--sidebar-width:260px;--header-height:70px;--border-radius-lg:16px;--border-radius-md:12px;--border-radius-sm:8px;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0f3d2414, 0 2px 4px -1px #0f3d240a;--shadow-lg:0 10px 15px -3px #0f3d2414, 0 4px 6px -2px #0f3d240a;--shadow-hover:0 10px 25px -5px #0f3d2426, 0 8px 10px -6px #0f3d241a;--transition-smooth:.2s ease-in-out}body.theme-primary{--brand-navy:#ff6b6b;--brand-cyan:#4ecdc4;--brand-gold:#ffe66d;--bg-portal:#f7fff7;--bg-surface:#fff;--border-radius-lg:24px;--border-radius-md:16px;--border-radius-sm:12px;--shadow-sm:0 4px 0px 0 #0000000d;--shadow-hover:0 6px 0px 0 #0000001a;--font-family:"Quicksand", "Comic Sans MS", system-ui, sans-serif}body.theme-alevel{--brand-navy:#7a0b0b;--brand-cyan:#d4af37;--brand-gold:#d4af37;--bg-portal:#1a0505;--bg-surface:#2b0b0b;--border-light:#4a1515;--text-primary:#f8fafc;--text-secondary:#cbd5e1;--text-muted:#94a3b8;--border-radius-lg:4px;--border-radius-md:2px;--border-radius-sm:0px;--font-family:"Georgia", "Times New Roman", serif}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-portal);color:var(--text-primary);-webkit-font-smoothing:antialiased;min-height:100vh;line-height:1.5;font-family:var(--font-family,"Inter", "Segoe UI", system-ui, sans-serif);transition:background-color .5s,color .5s,font-size .5s}.glass-panel{background:var(--bg-surface);border:2px solid var(--border-light);border-radius:var(--border-radius-md);box-shadow:var(--shadow-sm);transition:var(--transition-smooth)}.glass-panel:hover{box-shadow:var(--shadow-hover);border-color:#cbd5e1;transform:translateY(-2px)}.app-container{background:var(--bg-portal);min-height:100vh;display:flex}.main-content{margin-left:var(--sidebar-width);transition:margin var(--transition-smooth);background:var(--bg-portal);flex:1;padding:40px}.full-content{background:0 0;flex:1;width:100%;min-height:100vh;margin:0;padding:0}@media (width<=768px){.main-content{margin-left:0;padding:20px}}h1{color:var(--brand-navy);letter-spacing:-.02em;margin-bottom:24px;font-size:2.25rem;font-weight:800}h2{color:var(--brand-navy);margin-bottom:16px;font-size:1.5rem;font-weight:700}h3{color:var(--text-primary);margin-bottom:12px;font-size:1.25rem;font-weight:700}p{color:var(--text-secondary);margin-bottom:16px;font-size:1rem}.text-gradient{color:var(--brand-cyan);font-weight:800}.btn{border-radius:var(--border-radius-sm);cursor:pointer;transition:all var(--transition-smooth);border:none;justify-content:center;align-items:center;gap:8px;padding:12px 24px;font-size:1rem;font-weight:700;display:inline-flex}.btn-primary{background-color:var(--brand-cyan);color:#fff;border-bottom:4px solid #2563eb}.btn-primary:hover{background-color:#60a5fa;border-bottom-width:2px;margin-top:2px;transform:translateY(2px)}.btn-secondary{color:var(--text-primary);border:2px solid var(--border-light);border-bottom:4px solid var(--border-light);background-color:#fff}.btn-secondary:hover{background-color:#f8fafc;border-bottom-width:2px;margin-top:2px;transform:translateY(2px)}.grid-2{grid-template-columns:repeat(2,1fr);gap:24px;display:grid}.grid-3{grid-template-columns:repeat(3,1fr);gap:24px;display:grid}.grid-4{grid-template-columns:repeat(4,1fr);gap:24px;display:grid}@media (width<=1024px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(1,1fr)}}@media (width<=768px){.grid-2,.grid-4{grid-template-columns:1fr}}.badge{text-transform:uppercase;letter-spacing:.05em;border-radius:20px;padding:6px 12px;font-size:.75rem;font-weight:700;display:inline-block}.badge-warning{color:#d97706;background:#fef3c7;border:2px solid #fde68a}.badge-info{color:#2563eb;background:#dbeafe;border:2px solid #bfdbfe}.badge-success{color:#059669;background:#d1fae5;border:2px solid #a7f3d0}.badge-cyan{color:#0284c7;background:#e0f2fe;border:2px solid #bae6fd}.progress-container{background:var(--border-light);border-radius:10px;width:100%;height:12px;margin-top:8px;overflow:hidden}.progress-fill{border-radius:10px;height:100%;transition:width 1s ease-in-out}.progress-fill.gold{background:var(--status-warning)}.progress-fill.blue{background:var(--brand-cyan)}.progress-fill.green{background:var(--status-success)}::-webkit-scrollbar{width:10px}::-webkit-scrollbar-track{background:var(--bg-portal)}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:5px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}body.theme-focus aside.sidebar,body.theme-focus .sidebar{opacity:0;transition:all .5s cubic-bezier(.4,0,.2,1);transform:translate(-100%);pointer-events:none!important;display:block!important}body.theme-focus .main-content{max-width:1000px;margin:0 auto;padding:60px 40px;transition:all .5s cubic-bezier(.4,0,.2,1);margin-left:0!important}body.theme-focus .grid-2,body.theme-focus .grid-3,body.theme-focus .grid-4{grid-template-columns:1fr!important}body.theme-focus .math-badge,body.theme-focus .equation-display,body.theme-focus .equation-box{min-width:max-content;margin:20px auto;white-space:nowrap!important;flex-shrink:0!important;font-size:3rem!important}body.theme-focus .header-stats,body.theme-focus .roadmap-container,body.theme-focus .topic-card p{opacity:.15;transition:opacity .3s}body.theme-focus .header-stats:hover,body.theme-focus .roadmap-container:hover,body.theme-focus .topic-card p:hover{opacity:1}body.theme-simplified{--font-family:"Comic Sans MS", "Arial Rounded MT Bold", sans-serif;letter-spacing:.02em;font-size:110%}body.theme-simplified p{font-size:1.15rem;line-height:1.8}body.theme-simplified .glass-panel{border:4px solid var(--border-light);box-shadow:none}body.theme-simplified .btn{border-radius:20px;padding:16px 32px;font-size:1.2rem}body.theme-tint-cream{--bg-portal:#fdf6e3;--bg-surface:#fffcf0}body.theme-tint-blue{--bg-portal:#ebf8ff;--bg-surface:#f0faff}body.theme-tint-green{--bg-portal:#f0fff4;--bg-surface:#f7fff9}body.theme-focus-tracking p:hover,body.theme-focus-tracking li:hover,body.theme-focus-tracking .equation-box:hover{background:#3b82f614;border-radius:4px;transition:all .2s;box-shadow:0 0 0 8px #3b82f614}@keyframes celebrate{0%{transform:scale(1)}50%{filter:brightness(1.2);transform:scale(1.1)rotate(2deg)}to{transform:scale(1)}}.animate-celebrate{animation:.6s cubic-bezier(.175,.885,.32,1.275) celebrate}.confetti-piece{background:var(--brand-gold);opacity:0;width:10px;height:10px;animation:1.5s ease-out forwards fall;position:absolute;top:0}@keyframes fall{0%{opacity:1;transform:translateY(-50px)rotate(0)}to{opacity:0;transform:translateY(200px)rotate(360deg)}}.break-modal-overlay{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:2000;background:#0a192fb3;justify-content:center;align-items:center;animation:.3s ease-out fadeIn;display:flex;position:fixed;inset:0}.break-modal{text-align:center;background:#fff;border-radius:20px;width:90%;max-width:450px;padding:40px;box-shadow:0 20px 50px #0000004d}.break-icon{margin-bottom:20px;font-size:3rem}.break-modal h3{color:var(--brand-navy);margin-bottom:15px}.break-modal p{color:var(--text-muted);margin-bottom:30px;line-height:1.6}.break-actions{justify-content:center;gap:15px;display:flex}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.sidebar{width:var(--sidebar-width);background-color:var(--bg-surface);border-right:2px solid var(--border-light);height:100vh;color:var(--text-primary);z-index:1000;flex-direction:column;padding:32px 16px;display:flex;position:fixed;top:0;left:0}@media (width<=768px){.sidebar{transform:translate(-100%)}}.sidebar-header{align-items:center;gap:16px;margin-bottom:32px;padding:0 12px;display:flex}.logo-icon{flex-shrink:0;justify-content:center;align-items:center;width:80px;height:80px;display:flex}.sidebar-header h2{color:var(--brand-navy);letter-spacing:-.02em;margin:0;font-size:1.25rem;font-weight:800}.sidebar-stats{gap:8px;margin-bottom:32px;padding:0 12px;display:flex}.stat-pill{background:var(--bg-portal);border:2px solid var(--border-light);color:var(--text-primary);border-radius:20px;align-items:center;gap:6px;padding:6px 12px;font-size:.85rem;font-weight:700;display:flex}.stat-pill.streak{color:var(--status-warning);background:#fffbeb;border-color:#fde68a}.stat-pill.xp{color:var(--brand-primary);background:#f0fdf4;border-color:#bbf7d0}.sidebar-nav{scrollbar-width:none;flex-direction:column;flex:1;gap:8px;margin-bottom:16px;display:flex;overflow-y:auto}.sidebar-nav::-webkit-scrollbar{display:none}.sidebar-footer{border-top:2px solid var(--border-light);flex-direction:column;gap:8px;margin-top:auto;padding-top:16px;display:flex}.nav-label{text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);margin-top:24px;margin-bottom:8px;padding:0 16px;font-size:.75rem;font-weight:800}.nav-item{border-radius:var(--border-radius-md);color:var(--text-secondary);cursor:pointer;text-align:left;background:0 0;border:2px solid #0000;align-items:center;gap:12px;padding:14px 16px;font-size:.95rem;font-weight:700;transition:all .2s;display:flex}.nav-item:hover{background:var(--bg-portal);color:var(--brand-navy);transform:translate(4px)}.nav-item.active{color:var(--brand-primary);background-color:#f0fdf4;border:2px solid #bbf7d0;box-shadow:0 4px 6px -1px #16a34a1a}.nav-item .icon{opacity:.9;font-size:1.25rem}.sidebar-profile{align-items:center;gap:12px;margin-top:12px;display:flex}.avatar{background-color:var(--brand-cyan);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;font-size:1rem;font-weight:800;display:flex}.profile-info .name{color:var(--brand-navy);margin:0;font-size:.95rem;font-weight:700}.profile-info .grade{color:var(--text-muted);margin:0;font-size:.8rem;font-weight:600}.dashboard-view{max-width:1200px;margin:0 auto}.animate-fade-in{animation:.4s ease-out fadeIn}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.dashboard-header{border-bottom:1px solid var(--border-light);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:32px;padding-bottom:24px;display:flex}.whats-next-card{border-radius:var(--border-radius-lg);border-left:4px solid var(--brand-cyan);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:24px;margin-bottom:32px;padding:24px 28px;display:flex}.wn-left{flex:1;min-width:200px}.wn-eyebrow{text-transform:uppercase;letter-spacing:1px;color:var(--brand-cyan);margin-bottom:6px;font-size:.72rem;font-weight:800;display:block}.wn-title{margin:0 0 6px;font-size:1.35rem;font-weight:800}.wn-desc{color:var(--text-secondary);margin:0;font-size:.88rem}.wn-actions{flex-wrap:wrap;flex-shrink:0;gap:10px;display:flex}.header-stats{gap:32px;display:flex}.header-stats .stat{flex-direction:column;align-items:flex-end;display:flex}.header-stats .value{color:var(--brand-navy);font-size:1.75rem;font-weight:800}.header-stats .label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;font-size:.7rem;font-weight:700}.recommendation-hero{background-color:var(--brand-navy);color:#fff;border-radius:var(--border-radius-lg);box-shadow:var(--shadow-lg);justify-content:space-between;align-items:center;margin-bottom:48px;padding:48px;display:flex}.hero-content{max-width:60%}.hero-content h2{color:#fff;margin-top:16px;font-size:2.25rem;line-height:1.1}.hero-content p{color:#fffc;margin-bottom:32px;font-size:1rem}.hero-actions{gap:16px;display:flex}.hero-actions .btn-secondary{color:#fff;background-color:#ffffff1a;border-color:#fff3}.math-badge{border-radius:var(--border-radius-md);color:var(--brand-cyan);background:#ffffff0d;border:1px solid #ffffff1a;padding:32px;font-family:Fira 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.2s;display:flex}.action-list li:hover{border-color:var(--brand-cyan);background-color:#fff}.task-info,.activity-list li{flex-direction:column;display:flex}.task-info strong,.activity-list strong{color:var(--text-primary);font-size:.95rem}.task-info span,.activity-list span{color:var(--text-muted);font-size:.85rem}.time{color:var(--brand-cyan);text-transform:uppercase;margin-bottom:4px;font-size:.7rem;font-weight:700}.icon-btn{color:var(--brand-navy);cursor:pointer;background:0 0;border:none;font-size:1.25rem;transition:transform .2s}.icon-btn:hover{color:var(--brand-cyan)}.loading-state{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:400px;display:flex}.spinner{border:4px solid var(--border-light);border-top-color:var(--brand-navy);border-radius:50%;width:48px;height:48px;margin-bottom:24px;animation:1s linear infinite spin}.subject-switcher-row{gap:12px;margin-bottom:32px;padding-bottom:8px;display:flex;overflow-x:auto}.subject-pill{border:1px solid var(--border-light);color:var(--text-primary);cursor:pointer;white-space:nowrap;background:#ffffff08;border-radius:20px;align-items:center;gap:8px;padding:10px 18px;font-size:.9rem;font-weight:600;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex}.subject-pill:hover{background:#ffffff14;border-color:#f59e0b66;transform:translateY(-1px)}.subject-pill.active{background:var(--brand-navy);border-color:var(--brand-cyan);color:#fff;box-shadow:0 4px 12px #0f3d2433}.subject-icon{font-size:1rem}.phone-mockup{width:320px;height:540px;box-shadow:var(--shadow-lg), 0 25px 50px -12px #00000040;background:#f4f4f4;border:12px solid 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var(--border-light);gap:20px;padding-top:15px;display:flex}.c-stat{flex-direction:column;flex:1;display:flex}.c-value{color:var(--brand-navy);font-size:1.6rem;font-weight:800}.c-lbl{color:var(--text-secondary);font-size:.8rem}.timeline-container{flex-direction:column;gap:25px;padding:30px;display:flex;position:relative}.timeline-milestone{gap:20px;display:flex;position:relative}.timeline-milestone:before{content:"";background:var(--border-light);z-index:1;width:2px;position:absolute;top:40px;bottom:-35px;left:20px}.timeline-milestone:last-child:before{display:none}.milestone-marker{background:var(--bg-portal);border:3px solid var(--border-light);z-index:2;width:42px;height:42px;color:var(--text-muted);border-radius:50%;justify-content:center;align-items:center;font-weight:700;transition:all .3s;display:flex}.milestone-content{background:var(--bg-portal);border-radius:var(--border-radius-sm);border:1px solid var(--border-light);flex-wrap:wrap;flex:1;justify-content:space-between;align-items:center;gap:15px;padding:15px 20px;display:flex}.milestone-content h4{color:var(--text-primary);width:250px;margin:0;font-size:1.1rem}.milestone-content p{color:var(--text-secondary);flex:1;min-width:200px;margin:0;font-size:.9rem}.timeline-milestone.done .milestone-marker{background:var(--brand-primary);border-color:var(--brand-primary);color:#fff;box-shadow:0 0 10px #16a34a33}.timeline-milestone.done .milestone-content{border-left:4px solid var(--brand-primary);background:var(--bg-surface)}.timeline-milestone.active .milestone-marker{background:var(--brand-gold);border-color:var(--brand-gold);color:#fff;animation:2s infinite pulse-ring}.timeline-milestone.active .milestone-content{border-left:4px solid var(--brand-gold);background:var(--bg-surface)}.timeline-milestone.locked{opacity:.6}.timeline-progress{align-items:center;gap:10px;min-width:150px;display:flex}.timeline-progress .t-bar{background:var(--border-light);border-radius:3px;flex:1;height:6px;overflow:hidden}.timeline-progress .t-fill{background:var(--brand-primary);border-radius:3px;height:100%}.timeline-progress .t-fill.warning{background:var(--brand-gold)}.timeline-progress .t-pct{font-size:.85rem;font-weight:700}.status-lbl{color:var(--text-secondary);font-size:.8rem;font-weight:700}.gap-card{flex-direction:column;justify-content:space-between;padding:20px;display:flex;border-top:4px solid var(--brand-gold)!important}.gap-domain{text-transform:uppercase;color:var(--text-secondary);margin-bottom:5px;font-size:.75rem;font-weight:700;display:block}.gap-card h4{color:var(--brand-navy);margin-bottom:2px;font-size:1.1rem}.gap-topic{color:var(--text-muted);margin-bottom:15px;font-size:.85rem}.gap-mastery{align-items:center;gap:10px;margin-bottom:15px;display:flex}.mastery-lbl{color:var(--text-secondary);font-size:.75rem}.g-bar{background:var(--bg-portal);border:1px solid var(--border-light);border-radius:3px;flex:1;height:6px;overflow:hidden}.g-fill{background:var(--brand-gold);border-radius:3px;height:100%}.g-score{font-size:.8rem;font-weight:700}.gap-socratic-tip{color:var(--text-secondary);background:var(--bg-portal);border-radius:var(--border-radius-sm);margin-bottom:20px;padding:10px;font-size:.85rem;line-height:1.4}.gap-actions{gap:10px;display:flex}.gap-actions button{flex:1}.map-wrapper{padding:30px}.topology-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:15px;display:grid}.node-button{border-radius:var(--border-radius-md);border:2px dashed var(--border-light);background:var(--bg-portal);cursor:pointer;transition:var(--transition-smooth);flex-direction:column;justify-content:center;align-items:center;gap:8px;padding:20px 15px;display:flex}.node-button:hover{box-shadow:var(--shadow-md);border-style:solid;transform:scale(1.03)}.node-button.selected{border:2px solid var(--brand-primary);box-shadow:0 0 12px #16a34a26}.node-lbl{color:var(--text-primary);text-align:center;font-size:.95rem;font-weight:700}.node-badge{border-radius:10px;padding:2px 8px;font-size:.75rem;font-weight:700}.node-button.mastered{border-color:var(--brand-primary);background:#16a34a0a;border-style:solid}.node-button.mastered .node-badge{background:var(--brand-primary);color:#fff}.node-button.proficient{border-color:var(--status-info);background:#0ea5e90a;border-style:solid}.node-button.proficient .node-badge{background:var(--status-info);color:#fff}.node-button.developing{border-color:var(--brand-gold);background:#f59e0b0a;border-style:solid}.node-button.developing .node-badge{background:var(--brand-gold);color:#fff}.node-button.beginner{background:var(--bg-surface);border-color:#cbd5e1}.node-button.beginner .node-badge{color:var(--text-primary);background:#cbd5e1}.node-details-card{background:var(--bg-surface);border:2px solid var(--border-light);padding:25px;border-top:4px solid var(--brand-primary)!important}.node-details-header{justify-content:space-between;align-items:flex-start;margin-bottom:20px;display:flex}.node-details-header h3{color:var(--brand-navy);margin:5px 0 0}.close-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;font-size:1.8rem;line-height:1}.details-skill-list{flex-direction:column;gap:12px;list-style:none;display:flex}.skill-detail-item{border-radius:var(--border-radius-sm);background:var(--bg-portal);border:1px solid var(--border-light);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;padding:12px 15px;display:flex}.detail-name{flex-direction:column;display:flex}.detail-name strong{color:var(--text-primary);font-size:.95rem}.detail-name span{color:var(--text-muted);font-size:.8rem}.detail-status{align-items:center;gap:15px;display:flex}@keyframes pulse-ring{0%{box-shadow:0 0 #f59e0b66}70%{box-shadow:0 0 0 10px #f59e0b00}to{box-shadow:0 0 #f59e0b00}}.revision-planner-view{max-width:1000px;margin:0 auto;position:relative}.planner-header{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:30px;display:flex}.planner-header h1{margin-top:10px;margin-bottom:5px}.planner-header .subtitle{color:var(--text-secondary)}.commitment-settings{flex-direction:column;gap:6px;min-width:280px;padding:15px 20px;display:flex}.commitment-settings label{color:var(--text-primary);font-size:.85rem;font-weight:600}.planner-select{border-radius:var(--border-radius-sm);border:1px solid var(--text-muted);background:var(--bg-surface);outline:none;padding:8px 12px;font-family:inherit;font-size:.9rem}.planner-toast{background:var(--brand-navy);color:#fff;border-radius:var(--border-radius-md);box-shadow:var(--shadow-lg);z-index:999;padding:15px 25px;font-weight:700;position:fixed;bottom:30px;right:30px}.planner-stat-card{flex-direction:column;justify-content:center;padding:20px;display:flex}.planner-stat-card h3{color:var(--text-secondary);margin:0 0 10px;font-size:1rem}.stat-large{margin-bottom:5px;font-size:2.5rem;font-weight:900;line-height:1}.xp-note{color:var(--text-muted);font-size:.75rem}.p-bar-container{background:var(--border-light);border-radius:3px;width:100%;height:6px;margin-top:10px;overflow:hidden}.p-bar-fill{background:var(--brand-primary);border-radius:3px;height:100%;transition:width .4s}.coach-summary{background:var(--bg-portal);border:1px dashed var(--border-light);justify-content:center;display:flex}.coach-bubble{color:var(--text-primary);margin:0;font-size:.95rem;font-style:italic;line-height:1.5}.schedule-list{flex-direction:column;gap:15px;display:flex}.schedule-row{background:var(--bg-surface);justify-content:space-between;align-items:center;gap:20px;padding:20px;transition:all .25s;display:flex}.schedule-row:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.row-date{flex-direction:column;flex-shrink:0;width:110px;display:flex}.day-name{color:var(--brand-navy);font-size:1.1rem;font-weight:800}.date-str{color:var(--text-muted);font-size:.85rem}.row-details{flex:1}.task-domain{text-transform:uppercase;color:var(--text-muted);font-size:.7rem;font-weight:700;display:block}.task-details h4{color:var(--text-primary);margin:2px 0;font-size:1.1rem}.task-meta{color:var(--text-secondary);margin:0;font-size:.85rem}.row-actions{align-items:center;gap:15px;display:flex}.schedule-row.rest-day{background:var(--bg-portal);opacity:.8;border-style:dashed}.rest-day-message{flex-direction:column;display:flex}.rest-day-message strong{color:var(--text-primary);font-size:.95rem}.rest-day-message span{color:var(--text-secondary);font-size:.85rem}.schedule-row.completed{border-color:var(--brand-primary);background:#16a34a05}.schedule-row.completed .task-details h4{color:var(--text-muted);text-decoration:line-through}.checkbox-container{cursor:pointer;-webkit-user-select:none;user-select:none;color:var(--text-primary);padding-left:28px;font-size:.9rem;font-weight:700;display:block;position:relative}.checkbox-container input{opacity:0;cursor:pointer;width:0;height:0;position:absolute}.checkmark{background-color:var(--bg-portal);border:2px solid var(--border-light);border-radius:4px;width:20px;height:20px;transition:all .2s;position:absolute;top:1px;left:0}.checkbox-container:hover input~.checkmark{border-color:var(--brand-primary)}.checkbox-container input:checked~.checkmark{background-color:var(--brand-primary);border-color:var(--brand-primary)}.checkmark:after{content:"";display:none;position:absolute}.checkbox-container input:checked~.checkmark:after{display:block}.checkbox-container .checkmark:after{border:2px solid #fff;border-width:0 2px 2px 0;width:5px;height:10px;top:2px;left:6px;transform:rotate(45deg)}@media (width<=768px){.schedule-row{flex-direction:column;align-items:flex-start}.row-date{border-bottom:1px solid var(--border-light);flex-direction:row;justify-content:space-between;width:100%;padding-bottom:8px}.row-actions{justify-content:space-between;width:100%}}.rapid-revision-view{max-width:800px;margin:0 auto}.intro-container{background:var(--bg-surface);border:2px solid var(--border-light);flex-direction:column;align-items:center;margin-top:20px;display:flex}.intro-badge{background:var(--brand-navy);color:#fff;border-radius:12px;margin-bottom:20px;padding:5px 15px;font-size:.85rem;font-weight:700}.intro-desc{color:var(--text-secondary);max-width:550px;margin-bottom:30px;font-size:1.15rem;line-height:1.6}.arena-rules{text-align:left;flex-direction:column;gap:20px;width:100%;max-width:500px;margin:0 auto 30px;display:flex}.rule-item{align-items:center;gap:15px;display:flex}.rule-icon{background:var(--bg-portal);border:1px solid var(--border-light);border-radius:50%;justify-content:center;align-items:center;width:55px;height:55px;font-size:2rem;display:flex}.rule-text{flex-direction:column;display:flex}.rule-text strong{color:var(--text-primary);font-size:1rem}.rule-text span{color:var(--text-secondary);font-size:.85rem}.arena-header{background:var(--bg-surface);justify-content:space-between;align-items:center;padding:15px 25px;display:flex}.header-left{flex-direction:column;gap:8px;display:flex}.card-counter{color:var(--text-secondary);font-size:.85rem;font-weight:700}.card-indicator-row{gap:6px;display:flex}.card-dot{background:var(--border-light);border-radius:3px;width:25px;height:6px;transition:all .3s}.card-dot.active{background:var(--brand-gold);width:40px}.card-dot.completed{background:var(--brand-primary)}.arena-timer{background:var(--bg-portal);border-radius:var(--border-radius-sm);border:1px solid var(--border-light);align-items:center;gap:8px;padding:8px 15px;font-weight:700;display:flex}.arena-timer.timer-alert{border-color:var(--status-error);color:var(--status-error);background:#ef44441a;animation:1s infinite alternate pulse-red}.flashcard-panel{background:var(--bg-surface);padding:35px;position:relative}.card-tag{background:var(--bg-portal);color:var(--brand-primary);text-transform:uppercase;border:1px solid var(--border-light);border-radius:10px;margin-bottom:20px;padding:3px 10px;font-size:.75rem;font-weight:700;display:inline-block}.card-question{color:var(--brand-navy);margin-bottom:25px;font-size:1.45rem;line-height:1.5}.options-grid{grid-template-columns:1fr;gap:12px;display:grid}.option-btn{border-radius:var(--border-radius-sm);border:2px solid var(--border-light);background:var(--bg-surface);cursor:pointer;text-align:left;align-items:center;gap:15px;padding:16px 20px;font-family:inherit;font-size:1rem;transition:all .2s;display:flex}.option-btn:hover:not(:disabled){border-color:var(--brand-gold);background:var(--bg-portal);transform:translateY(-1px)}.option-letter{color:var(--text-muted);font-weight:800}.option-text{color:var(--text-primary);font-weight:600}.option-btn.correct-option{border-color:var(--brand-primary);background:#16a34a0d}.option-btn.correct-option .option-letter{color:var(--brand-primary)}.option-btn.wrong-option{border-color:var(--status-error);background:#ef44440d}.option-btn.wrong-option .option-letter{color:var(--status-error)}.option-btn.disabled-option{opacity:.5;cursor:default}.hint-widget{border-top:1px solid var(--border-light);padding-top:15px}.hints-box{background:var(--bg-portal);border:1px solid var(--border-light);border-radius:var(--border-radius-sm);flex-direction:column;gap:8px;margin-top:12px;padding:15px;display:flex}.hint-step{color:var(--text-primary);margin:0;font-size:.9rem;line-height:1.4}.no-hints{color:var(--text-muted);font-size:.85rem;font-style:italic}.explanation-panel{border-top:2px solid var(--border-light);padding-top:25px}.alert-header{border-radius:var(--border-radius-sm);text-align:center;margin-bottom:15px;padding:10px 15px;font-size:1.05rem;font-weight:800}.alert-header.success{background:var(--brand-primary);color:#fff}.alert-header.error{background:var(--status-error);color:#fff}.explanation-content{background:var(--bg-portal);border-radius:var(--border-radius-sm);border:1px solid var(--border-light);margin-bottom:20px;padding:20px}.explanation-content h4{color:var(--brand-navy);margin-bottom:8px}.explanation-content p{color:var(--text-primary);margin:0;line-height:1.5}.common-mistakes-box{border-top:1px solid var(--border-light);margin-top:15px;padding-top:15px}.common-mistakes-box strong{color:var(--status-error);margin-bottom:5px;font-size:.9rem;display:block}.common-mistakes-box ul{color:var(--text-secondary);padding-left:20px;font-size:.85rem}.explanation-actions{justify-content:flex-end;display:flex}.finished-container{flex-direction:column;align-items:center;margin-top:20px;display:flex}.completion-award{margin-bottom:15px;font-size:4rem;animation:2s ease-in-out infinite alternate float}.finished-desc{color:var(--text-secondary);font-size:1.15rem}.xp-card{flex-direction:column;align-items:center;gap:5px;padding:20px 40px;display:flex}.xp-title{text-transform:uppercase;color:var(--text-secondary);font-size:.85rem;font-weight:700}.xp-value{font-size:2.2rem;font-weight:900;line-height:1}.xp-breakdown{color:var(--text-muted);font-size:.8rem}.mastery-summary-box{text-align:left;width:100%;max-width:500px}.mastery-summary-box h3{color:var(--brand-navy);border-bottom:1px solid var(--border-light);margin-bottom:15px;padding-bottom:10px}.no-upgrades{color:var(--text-muted);text-align:center;font-size:.9rem;font-style:italic}.upgraded-list{flex-direction:column;gap:10px;list-style:none;display:flex}.upgraded-item{background:var(--bg-portal);border:1px solid var(--border-light);border-radius:var(--border-radius-sm);justify-content:space-between;align-items:center;padding:10px 15px;font-size:.9rem;display:flex}.skill-name{color:var(--text-primary);font-weight:700}.skill-delta{color:var(--text-secondary);font-size:.85rem}.arrow-green{color:var(--brand-primary);font-weight:800}.finished-actions{gap:15px;display:flex}@keyframes float{0%{transform:translateY(0)}to{transform:translateY(-8px)}}