@import"https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap";:root{--bg-base: #020617;--bg-surface: #0f172a;--bg-elevated: #1e293b;--bg-hover: rgba(255, 255, 255, .05);--bg-active: rgba(59, 130, 246, .1);--base-font-size: 16px;--blue: #3b82f6;--blue-light: #60a5fa;--blue-glow: rgba(59, 130, 246, .2);--blue-subtle: rgba(59, 130, 246, .08);--gold: #fbbf24;--gold-light: #fcd34d;--gold-glow: rgba(251, 191, 36, .2);--gold-subtle: rgba(251, 191, 36, .08);--text-main: #f8fafc;--text-muted: #94a3b8;--border-default: rgba(255, 255, 255, .08);--font-main: "Outfit", sans-serif;--shadow-premium: 0 10px 15px -3px rgba(0, 0, 0, .4);--success: #10b981;--success-bg: rgba(16, 185, 129, .1);--error: #ef4444;--warning: #f59e0b;--text-primary: #eef2ff;--text-secondary: #a5b4fc;--text-disabled: #374151;--border-subtle: rgba(165, 180, 252, .08);--border-strong: rgba(165, 180, 252, .25);--sidebar-width: 72px;--topbar-height: 56px;--r-sm: 8px;--r-md: 14px;--r-lg: 20px;--r-xl: 28px;--r-pill: 9999px;--trans-fast: .2s cubic-bezier(.4, 0, .2, 1);--trans-smooth: .3s cubic-bezier(.4, 0, .2, 1);--trans-bounce: .5s cubic-bezier(.175, .885, .32, 1.275)}[data-theme=light]{--bg-base: #f1f5f9;--bg-surface: #ffffff;--bg-elevated: #ffffff;--bg-hover: rgba(15, 23, 42, .06);--bg-active: rgba(59, 130, 246, .12);--text-main: #0f172a;--text-muted: #475569;--text-primary: #1e293b;--text-secondary: #334155;--border-default: rgba(15, 23, 42, .12);--border-subtle: rgba(15, 23, 42, .08);--border-strong: rgba(15, 23, 42, .2);--shadow-premium: 0 10px 15px -3px rgba(0, 0, 0, .04);--gold: #b45309;--blue: #2563eb;--blue-light: #1d4ed8;--blue-glow: rgba(37, 99, 235, .15)}[data-theme=light] .badge:not(.save){color:var(--text-main);background:var(--bg-hover)}[data-theme=light] .select-input-premium{color:var(--text-main);background:#fff;border-color:var(--border-default)}[data-theme=light] .nav-item{color:var(--text-muted)}[data-theme=light] .nav-item:hover{color:var(--text-main)}[data-theme=light] .nav-item.active{color:var(--blue);background:var(--bg-active)}[data-theme=light] .btn-settings-danger:not(:hover){background:#ef444414;color:#dc2626;border-color:#ef444433}[data-theme=light] .stat-card{background:#fff;box-shadow:0 4px 6px -1px #0000001a}[data-theme=light] .card,[data-theme=light] .sidebar{background:#fff}[data-theme=light] .topbar{background:#fffc;border-bottom:1px solid var(--border-subtle)}[data-theme=light] .chat-bubble.assistant{background:#f8fafc;color:#0f172a}[data-theme=light] .quiz-option{background:#fff;color:var(--text-main)}[data-theme=light] .quiz-option:hover{background:var(--blue-subtle);border-color:var(--blue)}[data-theme=light] .badge.xp{background:#b4530914;color:#b45309}[data-theme=light] .badge.streak{background:#dc262614;color:#dc2626}[data-theme=light] .header-top{border-bottom:1px solid var(--border-subtle);background:#fff}[data-theme=light] .settings-section-title{color:#2563eb}[data-theme=light] .wizard-icon-wrap{background:#fff;color:var(--blue)}[data-theme=light] .user-avatar-large{background:var(--blue);color:#fff}[data-theme=light] .icon-gold{color:#b45309;filter:none}[data-theme=light] .icon-orange{color:#dc2626;filter:none}[data-theme=high-contrast]{--bg-base: #000000;--bg-surface: #000000;--bg-elevated: #111111;--bg-hover: rgba(255, 255, 255, .2);--bg-active: #ffffff;--text-main: #ffffff;--text-muted: #dddddd;--text-primary: #ffffff;--text-secondary: #ffffff;--border-default: #ffffff;--border-subtle: #ffffff;--border-strong: #ffffff;--blue: #22d3ee;--gold: #fde047}*{box-sizing:border-box;margin:0;padding:0;scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.1) transparent}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb:hover{background:#fff3}html{overflow-y:scroll;scroll-behavior:smooth}body{margin:0;font-family:var(--font-main);background:var(--bg-base);background-image:radial-gradient(at 0% 0%,rgba(59,130,246,.08) 0px,transparent 50%),radial-gradient(at 100% 100%,rgba(251,191,36,.05) 0px,transparent 50%);color:var(--text-main);line-height:1.6}::-webkit-scrollbar-thumb{background:var(--border-default);border-radius:3px}html{overflow-y:scroll;scroll-behavior:smooth;font-size:var(--base-font-size)}body{margin:0;font-family:var(--font-main);background:var(--bg-base);background-image:radial-gradient(at 0% 0%,rgba(59,130,246,.08) 0px,transparent 50%),radial-gradient(at 100% 100%,rgba(251,191,36,.05) 0px,transparent 50%);color:var(--text-main);font-size:var(--base-font-size);line-height:1.6;-webkit-font-smoothing:antialiased;overflow:hidden;-webkit-user-select:none;user-select:none}:focus-visible{outline:2px solid var(--blue-light);outline-offset:2px;border-radius:4px}::selection{background:var(--blue-subtle);color:var(--text-primary)}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}.text-hero{font:700 32px/1.2 var(--font-display);color:var(--text-primary)}.text-title{font:600 20px/1.3 var(--font-display);color:var(--text-primary)}.text-h3{font:600 15px/1.4 var(--font-body);color:var(--text-primary)}.text-body{font:400 14px/1.6 var(--font-body);color:var(--text-secondary)}.text-small{font:500 12px/1.4 var(--font-body);color:var(--text-muted)}.text-label{font:600 10px/1 var(--font-body);letter-spacing:.8px;text-transform:uppercase;color:var(--text-muted)}.text-mono{font:500 13px/1 var(--font-mono);color:var(--text-secondary)}.app-shell{display:flex;height:100vh;background:var(--bg-base);overflow:hidden}.sidebar{width:var(--sidebar-width);height:100vh;background:var(--bg-surface);border-right:1px solid var(--border-subtle);display:flex;flex-direction:column;align-items:center;padding:16px 0;gap:4px;flex-shrink:0;position:fixed;left:0;top:0;bottom:0;z-index:100}.sidebar-logo{font-size:28px;margin-bottom:24px;cursor:default}.sidebar-nav{display:flex;flex-direction:column;gap:8px;flex:1}.nav-item{width:48px;height:48px;border-radius:var(--r-md);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;cursor:pointer;color:var(--text-muted);position:relative;transition:all .2s ease;border:1px solid transparent;background:none;text-decoration:none}.nav-item:hover{background:var(--bg-hover);color:var(--text-secondary);transform:scale(1.08)}.nav-item.active{background:var(--bg-active);color:var(--blue-light);border-color:#2563eb33;transform:scale(1.1);box-shadow:var(--shadow-glow-blue)}.nav-item.active:before{content:"";position:absolute;left:-1px;top:50%;transform:translateY(-50%);width:3px;height:22px;background:var(--blue-light);border-radius:0 3px 3px 0}.nav-icon{font-size:18px;line-height:1}.nav-label{font-size:9px;font-weight:600;letter-spacing:.3px;font-family:var(--font-body)}.sidebar-bottom{display:flex;flex-direction:column;align-items:center;gap:8px;padding-top:8px}.sidebar-separator{width:32px;height:1px;background:var(--border-subtle);margin:8px 0}.avatar-btn{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--blue),#6366f1);border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px;font-weight:600;position:relative;transition:transform .2s ease,box-shadow .2s ease}.avatar-btn:hover{transform:scale(1.08);box-shadow:var(--shadow-glow-blue)}.avatar-guest-dot{position:absolute;bottom:1px;right:1px;width:9px;height:9px;border-radius:50%;background:var(--gold);border:2px solid var(--bg-surface)}.main{margin-left:var(--sidebar-width);flex:1;display:flex;flex-direction:column;height:100vh;overflow:hidden}.topbar{height:var(--topbar-height);background:#080e2ed9;border-bottom:1px solid var(--border-subtle);padding:0 24px;display:flex;align-items:center;justify-content:space-between;flex-shrink:0;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);position:sticky;top:0;z-index:50}.topbar-left{display:flex;flex-direction:column;gap:2px}.topbar-right{display:flex;align-items:center;gap:10px}.page-content{flex:1;display:flex;flex-direction:column;overflow-y:auto;overflow-x:hidden;position:relative;scrollbar-gutter:stable}.card{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--r-lg);padding:18px 20px;transition:all var(--trans-smooth)}.card:hover{border-color:var(--blue-glow);box-shadow:var(--shadow-md);transform:translateY(-4px) scale(1.02)}.card.locked{filter:grayscale(1);opacity:.6;cursor:not-allowed}.card.locked:hover{transform:none;box-shadow:none;border-color:var(--border-subtle)}.stat-card{background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:var(--r-md);padding:14px 16px;position:relative;overflow:hidden}.stat-card:after{content:"";position:absolute;top:-10px;right:-10px;width:60px;height:60px;border-radius:50%;background:var(--glow-color, var(--blue-glow));filter:blur(16px);opacity:.6;pointer-events:none}.stat-label{font-size:10px;text-transform:uppercase;letter-spacing:.6px;color:var(--text-muted);margin-bottom:6px;font-family:var(--font-body)}.stat-value{font:700 26px/1 var(--font-display);color:var(--text-primary)}.stat-trend{font-size:11px;margin-top:4px;font-family:var(--font-body)}.premium-card-glass{background:linear-gradient(145deg,#1e293b66,#0f172acc);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid rgba(255,255,255,.1);border-top:1px solid rgba(255,255,255,.2);box-shadow:0 8px 32px #0000004d}.premium-card-glass:hover{transform:translateY(-5px);box-shadow:0 12px 40px #2563eb33;border-color:#2563eb66}[data-theme=light] .premium-card-glass{background:linear-gradient(145deg,#fff9,#ffffffe6);border:1px solid rgba(255,255,255,.8);box-shadow:0 8px 32px #1f268712}[data-theme=light] .premium-card-glass:hover{box-shadow:0 12px 40px #2563eb26;border-color:#2563eb4d}.badge-progress{display:flex;align-items:center;gap:6px;padding:5px 12px;background:var(--success-bg);border:1px solid rgba(16,185,129,.25);color:var(--success);border-radius:var(--r-pill);font-size:11px;font-weight:600;font-family:var(--font-body)}.badge-guest{display:flex;align-items:center;gap:6px;padding:5px 12px;color:var(--gold);border-radius:var(--r-pill);font-size:11px;font-weight:600;cursor:pointer;transition:all .2s ease;border:1px solid rgba(245,158,11,.3);background:var(--gold-subtle);font-family:var(--font-body)}.badge-guest:hover{background:#f59e0b26;border-color:#f59e0b80}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;border-radius:var(--r-md);font:500 14px/1 var(--font-body);cursor:pointer;border:none;transition:all .15s ease;text-decoration:none;white-space:nowrap}.btn:active{transform:scale(.97) translateY(1px)}.btn:disabled{opacity:.4;cursor:not-allowed;transform:none!important}.btn-primary{background:linear-gradient(135deg,var(--blue),#6366f1);color:#fff;box-shadow:0 4px 16px var(--blue-glow)}.btn-primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 20px var(--blue-glow)}.btn-gold{background:linear-gradient(135deg,var(--gold),#f97316);color:#1a1a1a;font-weight:600;box-shadow:0 4px 16px var(--gold-glow)}.btn-gold:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 20px var(--gold-glow)}.btn-ghost{background:transparent;color:var(--text-secondary);border:1px solid var(--border-default)}.btn-ghost:hover:not(:disabled){background:var(--bg-hover);color:var(--text-primary);border-color:var(--border-strong)}.btn-google{width:100%;padding:13px;border-radius:var(--r-md);background:#fff;color:#1a1a1a;border:1px solid var(--border-default);display:flex;align-items:center;justify-content:center;gap:10px;font:500 14px/1 var(--font-body);cursor:pointer;transition:all .15s ease}.btn-google:hover:not(:disabled){box-shadow:0 4px 16px #0003;transform:translateY(-1px)}.btn-email{width:100%;padding:13px;border-radius:var(--r-md);background:var(--bg-elevated);color:var(--text-primary);border:1px solid var(--border-default);display:flex;align-items:center;justify-content:center;gap:10px;font:500 14px/1 var(--font-body);cursor:pointer;transition:all .15s ease}.btn-email:hover:not(:disabled){border-color:var(--border-strong);background:var(--bg-hover)}.chip{padding:7px 14px;border-radius:var(--r-pill);background:var(--bg-elevated);border:1px solid var(--border-default);font-size:12px;color:var(--text-secondary);cursor:pointer;white-space:nowrap;transition:all .15s ease;font-family:var(--font-body)}.chip:hover{border-color:var(--blue-light);color:var(--blue-light);background:var(--blue-subtle)}.guest-banner{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 24px;height:52px;background:#f59e0b0f;border-bottom:1px solid rgba(245,158,11,.15);flex-shrink:0;animation:slide-down .3s ease}@keyframes slide-down{0%{transform:translateY(-100%);opacity:0}to{transform:translateY(0);opacity:1}}.guest-banner-text{font-size:13px;color:var(--text-secondary);font-family:var(--font-body)}.guest-banner-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}.auth-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#080e2eb3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:199;opacity:0;transition:opacity .3s ease;pointer-events:none}.auth-overlay.open{opacity:1;pointer-events:auto}.auth-modal{position:fixed;bottom:0;left:0;right:0;background:var(--bg-elevated);border-top:1px solid var(--border-default);border-radius:var(--r-xl) var(--r-xl) 0 0;padding:32px 24px 40px;transform:translateY(100%);transition:transform .35s cubic-bezier(.4,0,.2,1);z-index:200;max-width:480px;margin:0 auto}.auth-modal.open{transform:translateY(0)}.auth-modal-handle{width:32px;height:4px;background:var(--border-default);border-radius:var(--r-pill);margin:0 auto 24px}.auth-modal-title{font:600 18px/1.3 var(--font-display);color:var(--text-primary);text-align:center;margin-bottom:8px}.auth-modal-subtitle{font-size:13px;color:var(--text-muted);text-align:center;margin-bottom:24px}.auth-modal-actions{display:flex;flex-direction:column;gap:10px}.auth-fine-print{font-size:11px;color:var(--text-muted);text-align:center;margin-top:16px;font-family:var(--font-body)}.auth-error{padding:10px 14px;background:var(--error-bg);border:1px solid rgba(239,68,68,.3);border-radius:var(--r-sm);font-size:13px;color:var(--error);text-align:center}.tab-enter{opacity:0;transform:translate(12px)}.tab-enter-active{opacity:1;transform:translate(0);transition:opacity .2s ease,transform .2s ease}.tab-exit{opacity:1;transform:translate(0)}.tab-exit-active{opacity:0;transform:translate(-12px);transition:opacity .15s ease,transform .15s ease}.skeleton{background:linear-gradient(90deg,var(--bg-elevated) 0%,rgba(165,180,252,.08) 50%,var(--bg-elevated) 100%);background-size:200% 100%;animation:skeleton-sweep 1.5s infinite;border-radius:var(--r-sm)}@keyframes skeleton-sweep{0%{background-position:200% 0}to{background-position:-200% 0}}.timeline-container{padding:8px 0 24px}.timeline-header{margin-bottom:32px}.timeline-nodes-wrapper{display:flex;align-items:flex-start;gap:0;overflow-x:auto;padding-bottom:8px;scrollbar-width:none}.timeline-nodes-wrapper::-webkit-scrollbar{display:none}.timeline-node-group{display:flex;align-items:center;flex:1;min-width:100px}.timeline-node-group:last-child{flex:0}.timeline-node{display:flex;flex-direction:column;align-items:center;gap:10px;cursor:pointer;flex-shrink:0}.timeline-node-circle{width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--bg-elevated);border:2px solid var(--border-default);transition:all var(--trans-bounce);font-size:20px;box-shadow:var(--shadow-sm)}.timeline-node-circle.active{background:var(--blue-glow);border-color:var(--blue-light);transform:scale(1.2);box-shadow:var(--shadow-glow-blue)}.timeline-node-circle.completed{background:var(--success-bg);border-color:var(--success);color:var(--success)}.timeline-node-circle.unlocked{background:var(--bg-surface);border-color:var(--blue-light);border-style:dashed}.timeline-node-circle.locked{background:var(--text-disabled);border-color:var(--border-subtle);color:var(--text-muted);opacity:.5}.timeline-connector{height:3px;flex:1;background:var(--border-subtle);margin:0 -10px;z-index:-1;transition:all .5s ease}.timeline-connector.completed{background:var(--success);box-shadow:0 0 10px var(--success)}.timeline-connector.active{background:var(--blue-light);box-shadow:0 0 10px var(--blue-light)}.timeline-node-label{font-size:11px;font-weight:600;color:var(--text-muted);text-align:center;max-width:80px;line-height:1.3;font-family:var(--font-body);transition:color .2s ease}.timeline-node-circle.active~.timeline-node-label,.timeline-node-circle.completed~.timeline-node-label{color:var(--text-secondary)}.timeline-detail-wrapper{display:grid;grid-template-rows:0fr;transition:grid-template-rows .4s cubic-bezier(.4,0,.2,1)}.timeline-detail-wrapper.expanded{grid-template-rows:1fr}.timeline-detail-inner{overflow:hidden}.timeline-detail-card{margin-top:20px;padding:20px 24px;background:linear-gradient(135deg,var(--bg-elevated),rgba(37,99,235,.08));border:1px solid rgba(37,99,235,.3);border-radius:var(--r-lg);box-shadow:var(--shadow-glow-blue)}.timeline-detail-header{display:flex;align-items:center;gap:14px;margin-bottom:12px}.timeline-detail-icon{font-size:32px}.timeline-detail-title{font:600 17px/1.3 var(--font-display);color:var(--text-primary)}.timeline-duration-badge{display:inline-flex;align-items:center;gap:5px;padding:4px 10px;background:var(--blue-subtle);border:1px solid rgba(37,99,235,.3);border-radius:var(--r-pill);font-size:11px;font-weight:600;color:var(--blue-light);margin-bottom:12px;font-family:var(--font-body)}.timeline-detail-description{font:400 14px/1.7 var(--font-body);color:var(--text-secondary);margin-bottom:16px}.timeline-key-facts{list-style:none;display:flex;flex-direction:column;gap:8px}.timeline-key-facts li{display:flex;align-items:flex-start;gap:8px;font-size:13px;color:var(--text-secondary);font-family:var(--font-body)}.timeline-key-facts li:before{content:"✦";color:var(--gold);font-size:10px;margin-top:3px;flex-shrink:0}.wizard-container{max-width:640px;margin:0 auto;padding:8px 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li{display:flex;align-items:flex-start;gap:10px;font:400 14px/1.6 var(--font-body);color:var(--text-secondary)}.wizard-bullets li:before{content:"✦";color:var(--gold);font-size:10px;margin-top:5px;flex-shrink:0}.wizard-nav{display:flex;align-items:center;justify-content:space-between;margin-top:8px}.wizard-dots{display:flex;align-items:center;gap:8px}.wizard-dot{width:8px;height:8px;border-radius:50%;border:none;cursor:pointer;transition:all .2s ease;background:var(--border-default)}.wizard-dot.completed{background:var(--blue)}.wizard-dot.active{background:var(--gold);width:20px;border-radius:var(--r-pill)}.wizard-complete{text-align:center;padding:40px 0}.wizard-checkmark-wrap{width:80px;height:80px;border-radius:50%;background:var(--success-bg);border:2px solid var(--success);display:flex;align-items:center;justify-content:center;margin:0 auto 24px;box-shadow:0 0 24px #10b98133}.wizard-checkmark{stroke-dasharray:52;stroke-dashoffset:52;animation:draw-check .5s ease forwards .2s}@keyframes draw-check{to{stroke-dashoffset:0}}.wizard-complete-emoji{font-size:48px;display:block;margin-bottom:16px;animation:bounce-in .5s cubic-bezier(.34,1.56,.64,1) forwards}@keyframes bounce-in{0%{transform:scale(0);opacity:0}to{transform:scale(1);opacity:1}}.chat-container{display:flex;flex-direction:column;height:calc(100vh - var(--topbar-height) - 2px);max-height:calc(100vh - var(--topbar-height))}.chat-messages{flex:1;overflow-y:auto;padding:20px 0;display:flex;flex-direction:column;gap:16px}.chat-empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1;gap:16px;padding:40px 0}.chat-empty-icon{font-size:64px;opacity:.25}.chat-empty-text{font:400 15px/1.5 var(--font-body);color:var(--text-muted);text-align:center}.chat-chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;padding:0 16px}.chat-message{display:flex;align-items:flex-end;gap:10px;animation:msg-enter .25s ease}@keyframes 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var(--blue-glow)}.chat-input{flex:1;background:none;border:none;outline:none;color:var(--text-primary);font:400 14px/1 var(--font-body);resize:none}.chat-input::placeholder{color:var(--text-muted)}.chat-send-btn{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--blue),#6366f1);border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px;flex-shrink:0;transition:all .15s ease;box-shadow:0 2px 8px var(--blue-glow)}.chat-send-btn:hover:not(:disabled){transform:scale(1.08);box-shadow:0 4px 12px var(--blue-glow)}.chat-send-btn:disabled{opacity:.4;cursor:not-allowed}.quiz-container{max-width:640px;margin:0 auto;padding:8px 0}.quiz-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.quiz-progress-track{height:4px;background:var(--border-subtle);border-radius:var(--r-pill);overflow:hidden;flex:1;margin-right:16px}.quiz-progress-fill{height:100%;background:linear-gradient(90deg,var(--blue),var(--gold));border-radius:var(--r-pill);transition:width .5s cubic-bezier(.4,0,.2,1)}.quiz-question-count{font:600 12px/1 var(--font-body);color:var(--text-muted);white-space:nowrap}.quiz-question-text{font:600 18px/1.4 var(--font-display);color:var(--text-primary);text-align:center;margin-bottom:28px;min-height:56px}.quiz-options{display:flex;flex-direction:column;gap:8px;margin-bottom:20px}.quiz-option{padding:14px 18px;border-radius:var(--r-md);border:1px solid var(--border-default);background:var(--bg-elevated);cursor:pointer;font:400 14px/1.4 var(--font-body);color:var(--text-secondary);transition:all .15s ease;display:flex;align-items:center;gap:12px;text-align:left}.quiz-option:hover:not(.answered){border-color:var(--blue-light);background:var(--blue-subtle);color:var(--text-primary)}.quiz-option.selected{border-color:var(--blue-light);background:var(--blue-subtle);color:var(--text-primary)}.quiz-option.correct{border-color:var(--success);background:var(--success-bg);color:var(--success);animation:correct-pulse .4s ease}.quiz-option.incorrect{border-color:var(--error);background:var(--error-bg);color:var(--error);animation:incorrect-shake .3s ease}@keyframes incorrect-shake{0%,to{transform:translate(0)}25%{transform:translate(-6px)}75%{transform:translate(6px)}}.quiz-option-label{width:28px;height:28px;border-radius:50%;background:var(--border-subtle);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;flex-shrink:0;transition:background .15s ease;font-family:var(--font-body)}.quiz-option.correct .quiz-option-label{background:var(--success);color:#fff}.quiz-option.incorrect .quiz-option-label{background:var(--error);color:#fff}.quiz-explanation{padding:14px 16px;background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--r-md);font:400 13px/1.6 var(--font-body);color:var(--text-secondary);margin-bottom:20px;animation:msg-enter .25s ease}.quiz-result-card{text-align:center;padding:40px;background:var(--bg-surface);border-radius:24px;border:1px solid var(--border-default);animation:slide-up .4s ease;max-width:500px;margin:0 auto}.result-ring{position:relative;width:160px;height:160px;margin:0 auto 32px}.result-ring svg{width:100%;height:100%;transform:rotate(-90deg)}.ring-bg{fill:none;stroke:var(--bg-elevated);stroke-width:8}.quiz-result-actions{display:flex;justify-content:center;gap:12px;margin-top:32px}.btn-clear-history{background:#ffffff0d;border:1px solid var(--border-default);color:var(--text-muted);padding:8px 14px;border-radius:10px;font-size:12px;font-weight:600;cursor:pointer;transition:all .2s;display:flex;align-items:center;gap:8px}.btn-clear-history:hover{background:#ef44441a;border-color:#ef44444d;color:#f87171;transform:translateY(-1px)}.mentor-msg{display:flex;gap:12px}.mentor-msg.user{flex-direction:row-reverse}.mentor-msg .msg-bubble{max-width:70%;padding:16px 20px;border-radius:20px;font-size:15px}.mentor-msg.assistant .msg-bubble{background:var(--bg-elevated);border:1px solid var(--border-default);border-bottom-left-radius:4px}.mentor-msg.user .msg-bubble{background:var(--blue);color:#fff;border-bottom-right-radius:4px}.mentor-input-form{padding:24px 32px;background:var(--bg-elevated);border-top:1px solid var(--border-default);display:flex;gap:16px}.mentor-input-form input{flex:1;background:var(--bg-surface);border:1px solid var(--border-default);border-radius:16px;padding:14px 20px;color:#fff;outline:none}.mentor-input-form button{background:var(--blue);color:#fff;border:none;border-radius:16px;padding:0 24px;font-weight:600;cursor:pointer}[data-theme=high-contrast]{--bg-base: #000000;--bg-surface: #000000;--bg-elevated: #111111;--text-primary: #ffffff;--text-secondary: #ffffff;--text-muted: #ffffff;--border-default: #ffffff;--gold: #ffff00;--blue: #00ffff;--glass-blur: none}.quiz-ordering-list{display:flex;flex-direction:column;gap:10px;margin-bottom:24px}.ordering-item{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--bg-elevated);border:1px solid var(--border-default);border-radius:12px;cursor:grab}.ordering-item:active{cursor:grabbing}.ordering-controls{display:flex;flex-direction:column;gap:4px}.ordering-controls button{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:16px}.ordering-controls button:hover{color:var(--text-primary)}.sage-hero{display:flex;align-items:center;gap:24px;padding:40px 32px;background:linear-gradient(135deg,var(--bg-surface),var(--bg-elevated));border-radius:24px;border:1px solid var(--glass-border);margin-bottom:40px;position:relative;min-height:140px}.sage-avatar-wrapper{position:relative;flex-shrink:0}.sage-avatar{width:80px;height:80px;background:radial-gradient(circle,var(--gold-glow) 0%,transparent 70%);display:flex;align-items:center;justify-content:center;font-size:48px;border-radius:50%;border:2px solid var(--gold);box-shadow:var(--shadow-glow-gold)}.sage-level-badge{position:absolute;bottom:-4px;right:-4px;background:var(--gold);color:#000;font-size:10px;font-weight:800;padding:2px 6px;border-radius:10px;text-transform:uppercase}.sage-content{flex:1}.sage-dialogue-bubble{background:var(--bg-surface);padding:16px 20px;border-radius:16px 16px 16px 2px;font-size:16px;line-height:1.5;color:var(--text-primary);margin-bottom:20px;position:relative;border:1px solid var(--border-default);box-shadow:var(--shadow-sm)}.bubble-tail{position:absolute;bottom:-8px;left:0;width:16px;height:16px;background:var(--bg-surface);border-left:1px solid var(--border-default);border-bottom:1px solid var(--border-default);transform:rotate(45deg)}.xp-progress-container{width:100%;max-width:400px}.xp-info{display:flex;justify-content:space-between;font-size:12px;font-weight:600;margin-bottom:6px}.xp-title{color:var(--gold);text-transform:uppercase;letter-spacing:.5px}.xp-values{color:var(--text-muted)}.xp-bar-bg{height:8px;background:var(--bg-elevated);border-radius:4px;overflow:hidden}.xp-bar-fill{height:100%;background:linear-gradient(90deg,var(--gold),#fbbf24);box-shadow:0 0 10px var(--gold-glow);transition:width 1s cubic-bezier(.4,0,.2,1)}.journey-map{padding:20px 0}.mission-path{display:flex;align-items:center;gap:0;overflow-x:auto;padding:40px 20px;scrollbar-width:none}.mission-node-group{display:flex;align-items:center;flex:1;min-width:120px}.mission-node-group:last-child{flex:0}.mission-node{display:flex;flex-direction:column;align-items:center;gap:12px;cursor:pointer;position:relative;z-index:2}.tab-heading-story{font-size:28px;background:linear-gradient(to right,var(--blue),var(--text-primary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:24px;font-weight:800}.challenge-feedback-premium{margin-top:24px;padding:20px;border-radius:16px;display:flex;align-items:flex-start;gap:16px;animation:slide-up .4s ease-out}.challenge-feedback-premium.correct{background:#22c55e14;border:1px solid rgba(34,197,94,.2)}.challenge-feedback-premium.wrong{background:#ef444414;border:1px solid rgba(239,68,68,.2)}[data-theme=light] .challenge-feedback-premium.correct{background:#f0fdf4}[data-theme=light] .challenge-feedback-premium.wrong{background:#fef2f2}.feedback-content{display:flex;gap:16px}.feedback-text-container{display:flex;flex-direction:column}.feedback-label{font-weight:800;font-size:16px;color:var(--text-primary);margin-bottom:4px}.feedback-desc{color:var(--text-secondary);line-height:1.6;font-size:14px}.mastery-nav-controls{display:flex;justify-content:space-between;margin-top:32px;border-top:1px solid var(--border-subtle);padding-top:20px}.btn-nav{padding:10px 20px;border-radius:12px;font-weight:700;cursor:pointer;transition:all .2s;border:1px solid var(--border-default);background:var(--bg-surface);color:var(--text-primary)}.btn-nav:disabled{opacity:.3;cursor:not-allowed}.btn-nav.btn-primary{background:var(--blue);color:#fff;border-color:var(--blue-light)}.stage-mastery-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:#0006;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:100;display:flex;align-items:center;justify-content:center;padding:40px}.mastery-mini-card{background:var(--bg-elevated);padding:40px;border-radius:24px;border:1px solid var(--blue);box-shadow:0 20px 50px #0000004d;text-align:center;max-width:400px;animation:pop-in .5s cubic-bezier(.34,1.56,.64,1)}[data-theme=light] .mastery-mini-card{background:#fff;box-shadow:0 20px 40px #3b82f61a}.tab-subtext{color:var(--text-muted);font-size:14px;margin-bottom:28px}.data-stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px;margin-bottom:32px}.data-stat-card{background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:20px;padding:24px 16px;text-align:center;transition:all .3s cubic-bezier(.4,0,.2,1)}.data-stat-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:var(--blue)}[data-theme=light] .data-stat-card{background:#fff}.data-stat-icon{font-size:32px;margin-bottom:12px}.data-stat-value{font-size:24px;font-weight:800;color:var(--blue);margin-bottom:4px}.data-stat-label{font-size:12px;color:var(--text-muted);font-weight:600}.data-cases-header{display:flex;align-items:center;gap:12px;margin-bottom:20px}.data-cases-list{display:flex;flex-direction:column;gap:16px;margin-bottom:32px}.data-case-item{background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:20px;padding:24px;border-left:4px solid var(--blue)}[data-theme=light] .data-case-item{background:#fff}.data-case-content{display:flex;gap:16px}.data-case-icon{font-size:28px;flex-shrink:0}.data-case-text{flex:1}.data-case-header-row{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:8px}.data-case-title{font-weight:800;color:var(--text-primary)}.data-case-date{font-size:11px;font-weight:700;color:var(--text-muted);background:var(--bg-surface);padding:4px 10px;border-radius:12px}.data-case-body{font-size:14px;line-height:1.6;color:var(--text-secondary);margin-bottom:16px}.data-case-verdict{display:inline-flex;align-items:center;gap:8px;background:#22c55e14;padding:8px 12px;border-radius:10px;font-size:12px;font-weight:700;color:var(--success)}.data-external-link{display:inline-flex;align-items:center;gap:8px;background:var(--blue);color:#fff!important;padding:14px 28px;border-radius:14px;font-weight:700;text-decoration:none;transition:all .2s}.data-external-link:hover{opacity:.9;transform:translateY(-2px);box-shadow:0 8px 20px #3b82f64d}.flow-timeline{display:flex;flex-direction:column;gap:32px;position:relative;padding-left:16px;margin:24px 0}.flow-line{position:absolute;left:47px;top:30px;bottom:30px;width:2px;background:linear-gradient(to bottom,var(--blue),transparent);opacity:.4}.flow-node-row{display:flex;gap:24px;align-items:center;position:relative;z-index:1}.flow-icon-bubble{display:flex;align-items:center;justify-content:center;width:64px;height:64px;background:var(--bg-surface);border-radius:50%;font-size:28px;flex-shrink:0;border:2px solid var(--blue);box-shadow:0 0 20px var(--blue-glow);color:var(--blue)}[data-theme=light] .flow-icon-bubble{background:#fff;box-shadow:0 0 15px #3b82f633}.flow-content-card{flex:1;background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:20px;padding:24px;box-shadow:var(--shadow-premium);transition:all .3s ease;cursor:default}.flow-content-card:hover{transform:translate(8px);border-color:var(--blue)}[data-theme=light] .flow-content-card{background:#fff}.flow-node-title{margin:0 0 8px;font-size:20px;color:var(--text-primary);font-weight:800}.flow-node-desc{margin:0;font-size:15px;color:var(--text-secondary);line-height:1.6}.flow-node-fact{margin-top:20px;padding-top:16px;border-top:1px dashed var(--border-strong);display:flex;align-items:center;gap:12px}.flow-fact-bulb{font-size:18px;background:var(--blue-subtle);width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0}.flow-fact-text{font-size:14px;color:var(--blue);font-weight:700;line-height:1.4}.node-circle{width:56px;height:56px;border-radius:50%;background:var(--bg-elevated);border:2px solid var(--border-default);display:flex;align-items:center;justify-content:center;font-size:24px;transition:all var(--trans-bounce);position:relative}.node-circle.completed{background:var(--success-bg);border-color:var(--success);box-shadow:0 0 15px #10b98140;color:var(--success)}.node-circle.active{background:var(--gold);border-color:var(--gold);box-shadow:var(--shadow-glow-gold);transform:scale(1.15);animation:node-pulse 2s infinite}.node-circle.locked{border-style:dashed;opacity:.4;filter:grayscale(1)}.node-circle.selected{outline:3px solid var(--blue);outline-offset:4px;transform:scale(1.1)}.node-circle.active.selected{transform:scale(1.15)}.lock-badge{position:absolute;top:-4px;right:-4px;background:#333;width:18px;height:18px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:10px}.node-label{font-size:11px;font-weight:700;text-transform:uppercase;color:var(--text-muted);letter-spacing:.5px}.node-circle.active+.node-label{color:var(--gold)}.path-connector{flex:1;height:3px;background:var(--border-subtle);margin:0 -10px 24px;z-index:1}.path-connector.completed{background:var(--success)}.path-connector.active{background:repeating-linear-gradient(90deg,var(--blue-adventure),var(--gold) 50%,var(--blue-adventure));background-size:200% 100%;animation:flow 2s linear infinite}@keyframes flow{0%{background-position:100% 0}to{background-position:-100% 0}}@keyframes node-pulse{0%,to{box-shadow:0 0 15px var(--gold-glow)}50%{box-shadow:0 0 30px var(--gold-glow)}}.stage-tabs{display:flex;background:#ffffff05;border-bottom:1px solid var(--border-default);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}[data-theme=light] .stage-tabs{background:#ffffffb3;border-bottom:1px solid rgba(0,0,0,.05)}.stage-tab{flex:1;padding:18px;border:none;background:none;color:var(--text-muted);font-weight:700;font-size:14px;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;justify-content:center;gap:8px}[data-theme=light] .stage-tab{color:#64748b}.stage-tab.active{color:var(--blue);background:var(--bg-active);box-shadow:inset 0 -3px 0 var(--blue);font-weight:800}[data-theme=light] .stage-tab.active{background:#fff;color:var(--blue)}.stage-content-body{padding:32px;min-height:300px}.flow-container{display:flex;align-items:center;justify-content:center;gap:16px;padding:20px}.flow-node{display:flex;flex-direction:column;align-items:center;gap:8px;padding:16px;background:var(--bg-elevated);border-radius:16px;border:1px solid var(--border-default);width:120px;transition:all .3s;cursor:help}.flow-node:hover{transform:translateY(-5px);border-color:var(--blue-adventure);box-shadow:var(--shadow-md)}.flow-icon{font-size:32px}.flow-label{font-size:12px;font-weight:700;color:var(--text-secondary);text-align:center}.flow-arrow{font-size:24px;color:var(--text-muted)}.mistake-grid{display:flex;flex-direction:column;gap:16px}.mistake-card{padding:24px;border-radius:20px;border:1px solid var(--error-bg);background:var(--bg-surface);box-shadow:0 4px 12px #0000001a}[data-theme=light] .mistake-card{background:#fff;border-color:#ef444426;box-shadow:0 10px 20px #ef44440a}.mistake-title{color:#ef4444;font-weight:700;margin-bottom:8px;display:flex;align-items:center;gap:8px}.mistake-consequence{font-size:13px;color:var(--text-muted);margin-bottom:12px}.mistake-fix{font-size:13px;font-weight:600;color:var(--text-secondary)}.global-quiz-hero{background:var(--hero-gradient, linear-gradient(135deg, #0f172a 0%, #1e293b 100%));-webkit-backdrop-filter:blur(40px);backdrop-filter:blur(40px);border:1px solid var(--hero-border, rgba(255, 255, 255, .15));padding:80px 60px;border-radius:56px;position:relative;overflow:hidden;box-shadow:var(--hero-shadow, 0 40px 100px rgba(0,0,0,.7));display:flex;flex-direction:column;align-items:center;text-align:center;margin-bottom:80px}[data-theme=light] .global-quiz-hero{--hero-gradient: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);--hero-border: rgba(15, 23, 42, .1);--hero-shadow: 0 30px 60px rgba(15, 23, 42, .1);background:radial-gradient(at 0% 0%,rgba(59,130,246,.1) 0px,transparent 50%),radial-gradient(at 100% 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20px;border:2px solid var(--border-default);border-radius:16px;background:var(--bg-elevated);color:var(--text-main);font-size:16px;font-weight:500;text-align:left;cursor:pointer;transition:all .15s cubic-bezier(.175,.885,.32,1.275);font-family:var(--font-main)}.lesson-option:hover:not(:disabled){border-color:var(--blue);background:var(--blue-subtle);transform:scale(1.015)}.lesson-option:active:not(:disabled){transform:scale(.98)}.lesson-option:disabled{cursor:default}.lesson-option.correct{border-color:var(--success);background:var(--success-bg);color:var(--success)}.lesson-option.wrong{border-color:var(--error);background:#ef444414;color:var(--error);opacity:.6;animation:owl-shake .4s ease}.lesson-option-letter{width:32px;height:32px;border-radius:8px;background:#ffffff0f;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px;flex-shrink:0}.lesson-option-text{flex:1}.lesson-option-icon{flex-shrink:0}.correct-icon{color:var(--success)}.wrong-icon{color:var(--error)}.lesson-bottom-panel{flex-shrink:0;padding:20px 24px;display:flex;align-items:center;justify-content:space-between;gap:20px;border-top:2px solid transparent;animation:slide-up .25s ease}.lesson-bottom-panel.correct{background:var(--success-bg);border-color:#10b9814d}.lesson-bottom-panel.wrong{background:#ef444414;border-color:#ef44444d}.bottom-panel-content{display:flex;align-items:flex-start;gap:14px;flex:1}.bottom-panel-icon{font-size:24px;flex-shrink:0;margin-top:2px}.bottom-panel-title{font-size:16px;font-weight:800;color:var(--text-primary);margin-bottom:4px}.lesson-bottom-panel.correct .bottom-panel-title{color:var(--success)}.lesson-bottom-panel.wrong .bottom-panel-title{color:var(--error)}.bottom-panel-text{font-size:14px;color:var(--text-secondary);line-height:1.5;margin:0}.lesson-check-btn{padding:14px 28px;border-radius:16px;border:none;font:800 15px/1 var(--font-main);cursor:pointer;letter-spacing:.5px;text-transform:uppercase;transition:all .15s cubic-bezier(.175,.885,.32,1.275);flex-shrink:0}.lesson-check-btn:active{transform:scale(.96) translateY(2px)}.lesson-check-btn.correct{background:var(--success);color:#fff;box-shadow:0 4px 16px #10b98166}.lesson-check-btn.correct:hover{transform:translateY(-2px);box-shadow:0 6px 20px #10b98180}.lesson-check-btn.wrong{background:var(--error);color:#fff;box-shadow:0 4px 16px #ef444466}.lesson-check-btn.wrong:hover{transform:translateY(-2px);box-shadow:0 6px 20px #ef444480}.lesson-bottom-neutral{flex-shrink:0;padding:16px 24px;border-top:1px solid var(--border-subtle);display:flex;align-items:center;justify-content:center}.league-modal{position:relative;z-index:901}@media (max-width: 640px){.duolingo-topbar{padding:0 12px;gap:8px}.daily-goal-center{display:none}.lesson-body{padding:20px 16px}.lesson-topbar{padding:10px 16px}.lesson-question{font-size:18px}.lesson-option{padding:14px 16px;font-size:14px}.lesson-bottom-panel{padding:16px;flex-direction:column}.lesson-check-btn{width:100%}.xp-value{display:none}}[data-theme=light] .duolingo-topbar{background:#fff;border-bottom-color:var(--border-subtle)}[data-theme=light] .lesson-shell{background:#f8fafc}[data-theme=light] .lesson-topbar{background:#fff}[data-theme=light] .lesson-option{background:#fff;border-color:#e2e8f0;color:var(--text-main)}[data-theme=light] .lesson-option:hover:not(:disabled){background:var(--blue-subtle)}[data-theme=light] .lesson-bottom-panel.correct{background:#10b9810f}[data-theme=light] .lesson-bottom-panel.wrong{background:#ef44440f}