@font-face{font-family:Nunito Variable;font-style:normal;font-display:swap;font-weight:200 1000;src:url(./nunito-cyrillic-ext-wght-normal-D4X5GqEv.woff2)format("woff2-variations");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Nunito Variable;font-style:normal;font-display:swap;font-weight:200 1000;src:url(./nunito-cyrillic-wght-normal-CY6AOgYE.woff2)format("woff2-variations");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Nunito Variable;font-style:normal;font-display:swap;font-weight:200 1000;src:url(./nunito-vietnamese-wght-normal-U01xdrZh.woff2)format("woff2-variations");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Nunito Variable;font-style:normal;font-display:swap;font-weight:200 1000;src:url(./nunito-latin-ext-wght-normal-CXYtwYOx.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Nunito Variable;font-style:normal;font-display:swap;font-weight:200 1000;src:url(./nunito-latin-wght-normal-BzFMHfZw.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Caveat;font-style:normal;font-display:swap;font-weight:600;src:url(./caveat-latin-600-normal-zlTlWIYU.woff2)format("woff2"),url(./caveat-latin-600-normal-DUjB8dgm.woff)format("woff")}:root{--background:#faf5ec;--surface:#fffdf9;--card:#fff;--border:#ece3d3;--text:#1c2540;--muted:#6b7289;--navy:#16213f;--navy-soft:#24325c;--primary:#3d4fb5;--primary-dark:#2a3888;--primary-soft:#e9ebfa;--secondary:#2f9e6b;--purple:#6c5dd3;--orange:#e8763a;--pink:#e2607f;--success:#2f9e6b;--danger:#d9534f;--lavender:#ecebfb;--lavender-ink:#5a4bc4;--mint:#e1f3e8;--mint-ink:#25805a;--sky:#e2eefb;--sky-ink:#2f6fc4;--peach:#fde9dc;--peach-ink:#c75f25;--butter:#fdf2cf;--butter-ink:#9a7407;--shadow:0 6px 20px #29251c12;--large-shadow:0 18px 44px 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.message-content{background:var(--primary);color:#fff;border-top-right-radius:6px}.message.thinking .message-text{color:var(--muted);font-style:italic}.message.thinking.writing .message-text{color:inherit;font-style:normal}.speak-answer-button{background:var(--primary-soft);cursor:pointer;border:0;border-radius:50%;flex:none;place-items:center;width:30px;height:30px;margin:-3px -6px -3px 0;font-size:.85rem;display:grid}.suggestions,.assistant-actions{scrollbar-width:none;gap:8px;padding:0 16px 10px;display:flex;overflow-x:auto}.suggestions::-webkit-scrollbar{display:none}.assistant-actions::-webkit-scrollbar{display:none}.suggestions button,.assistant-actions button{border:1px solid var(--border);background:var(--card);min-height:36px;color:var(--text);font:inherit;white-space:nowrap;cursor:pointer;border-radius:999px;flex:none;padding:0 13px;font-size:.82rem;font-weight:700}.suggestions button:hover,.assistant-actions button:hover{border-color:var(--primary);color:var(--primary-dark)}.assistant-actions .voice-stop-button,.assistant-actions .stop-speaking{background:var(--peach);color:var(--peach-ink);border-color:#f3c4b0}.chat-input-area{border-top:1px solid var(--border);background:var(--card);align-items:center;gap:10px;padding:10px 16px 6px;display:flex}.chat-input-field{border:1px solid var(--border);background:var(--surface);border-radius:999px;flex:1;align-items:center;min-width:0;padding:0 6px 0 16px;display:flex}.chat-input-field:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}#chatInput{min-width:0;height:46px;color:var(--text);font:inherit;background:0 0;border:0;outline:0;flex:1;font-size:.95rem}.voice-language-button{border:1px solid var(--border);background:var(--card);min-width:34px;height:28px;color:var(--primary);font:inherit;cursor:pointer;border-radius:999px;flex:none;margin-right:4px;padding:0 8px;font-size:.8rem;font-weight:800}.voice-language-button:hover,.voice-language-button:focus-visible{border-color:var(--primary);background:var(--primary-soft)}.voice-language-button.hidden{display:none}.voice-input-button{width:38px;height:38px;color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:50%;flex:none;place-items:center;display:grid}.voice-input-button:hover{background:var(--primary-soft);color:var(--primary-dark)}.voice-input-button.listening{color:var(--danger);background:#fde3e1;animation:1.2s ease-in-out infinite voicePulse}@keyframes voicePulse{50%{box-shadow:0 0 0 7px #d9534f24}}#sendChat{background:var(--navy);color:#fff;cursor:pointer;border:0;border-radius:50%;flex:none;place-items:center;width:46px;height:46px;display:grid}#sendChat:hover{background:var(--primary-dark)}.voice-input-status{background:var(--card);min-height:1.2em;color:var(--muted);padding:2px 20px 0;font-size:.76rem;font-weight:700}.voice-input-status.error{color:var(--danger)}.voice-input-status.success{color:var(--mint-ink)}.voice-input-note{padding:2px 20px calc(10px + env(safe-area-inset-bottom));background:var(--card);color:var(--muted);font-size:.68rem;line-height:1.35}.voice-input-note:empty{padding-top:0}@media (width<=900px){.chat-fab{right:14px;bottom:calc(78px + env(safe-area-inset-bottom));padding:8px}.chat-fab-label{display:none}.offline-ai-status-card{top:68px;right:12px}.auto-speak-toggle span{display:none}}.bottom-nav{display:none}@media (width<=900px){.bottom-nav{z-index:30;padding:8px 10px calc(8px + env(safe-area-inset-bottom));border-top:1px solid var(--border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fffdf9f5;grid-template-columns:repeat(4,1fr);gap:4px;display:grid;position:fixed;bottom:0;left:0;right:0}.bottom-nav .nav-item{border-radius:var(--radius-small);color:var(--muted);font:inherit;cursor:pointer;background:0 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solid #e8f1fc;border-radius:50%;flex-shrink:0;place-items:center;width:50px;height:50px;font-weight:900;display:grid}.milestone-copy{background:#ffffffc2;border-radius:16px;flex-direction:column;flex:1;min-width:0;padding:10px 14px;display:flex}.milestone-copy small{color:var(--muted);font-size:.68rem}.milestone-copy strong{text-overflow:ellipsis;white-space:nowrap;margin-top:3px;font-size:.92rem;overflow:hidden}.milestone-status{color:#95a7bb;text-align:right;min-width:52px;font-size:.68rem;font-weight:800}.path-milestone.complete .milestone-dot{color:#fff;background:#f6b935;border-color:#ffd36b}.path-milestone.complete .milestone-copy{background:#fff9e9}.path-milestone.active .milestone-dot{color:#fff;background:var(--secondary);border-color:#8fdacf;box-shadow:0 0 0 5px #00a99d1f}.path-milestone.active .milestone-copy{background:#ecfbf7;border:1px solid #a4e3d6}.path-milestone.active .milestone-status{color:var(--secondary)}.full-path{padding:5px 0 20px}@keyframes floatStar{50%{transform:translateY(-5px)scale(1.08)}}#app{padding:20px 13px}.auth-card{padding:26px 20px}.hero{border-radius:26px;min-height:330px;padding:30px 21px}.hero h2{font-size:2.15rem}.class-grid{grid-template-columns:repeat(2,1fr)}.class-card{min-height:155px;padding:18px}.chapter-grid{grid-template-columns:1fr}.lesson-container{border-radius:23px;padding:20px}.lesson-title{font-size:1.55rem}.stats-grid{grid-template-columns:repeat(2,1fr)}.stats-grid .stat-card:last-child{grid-column:span 2}}.auth-section{place-items:center;min-height:65vh;display:grid}.auth-card{text-align:center;width:min(100%,470px);box-shadow:var(--large-shadow);background:#fff;border:1px solid #28508c14;border-radius:26px;padding:34px;animation:.45s fadeUp}.auth-icon{background:#edf4ff;border-radius:20px;place-items:center;width:66px;height:66px;margin:0 auto 16px;font-size:2rem;display:grid}.auth-badge{color:var(--primary-dark);background:#edf4ff;border-color:#176bff1f}.auth-card h2{margin-top:18px;font-size:1.8rem}.auth-intro{color:var(--muted);margin-top:8px;line-height:1.5}.auth-card form{text-align:left;margin-top:24px}.auth-card label{margin:14px 0 6px;font-size:.84rem;font-weight:700;display:block}.auth-card input{border:1px solid var(--border);background:#fbfdff;border-radius:12px;outline:none;width:100%;padding:13px 14px}.auth-card input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #176bff1f}.auth-submit{width:100%;margin-top:20px}.auth-switch{color:var(--primary-dark);background:0 0;border:none;margin-top:18px;font-size:.88rem;font-weight:700}@media (width>=651px){.learning-path{padding:5px 2px;position:relative}.path-line{background:repeating-linear-gradient(#b9d3f7 0 10px,#0000 10px 18px);border-radius:5px;width:3px;position:absolute;top:20px;bottom:20px;left:25px}.path-milestone{z-index:1;text-align:left;background:0 0;border:none;align-items:center;gap:13px;width:100%;min-height:67px;padding:9px 13px 9px 0;display:flex;position:relative}.milestone-dot{color:#8ca1b9;background:#fff;border:5px solid #e8f1fc;border-radius:50%;flex-shrink:0;place-items:center;width:50px;height:50px;font-weight:900;display:grid}.milestone-copy{background:#ffffffc2;border-radius:16px;flex-direction:column;flex:1;min-width:0;padding:10px 14px;display:flex}.milestone-copy small{color:var(--muted);font-size:.68rem}.milestone-copy strong{text-overflow:ellipsis;white-space:nowrap;margin-top:3px;font-size:.92rem;overflow:hidden}.milestone-status{color:#95a7bb;text-align:right;min-width:52px;font-size:.68rem;font-weight:800}.path-milestone.complete .milestone-dot{color:#fff;background:#f6b935;border-color:#ffd36b}.path-milestone.complete .milestone-copy{background:#fff9e9}.path-milestone.active .milestone-dot{color:#fff;background:var(--secondary);border-color:#8fdacf;box-shadow:0 0 0 5px #00a99d1f}.path-milestone.active .milestone-copy{background:#ecfbf7;border:1px solid #a4e3d6}}.auth-message{color:#a34242;background:#fff1f1;border-radius:10px;margin-top:16px;padding:10px 12px;font-size:.86rem}.auth-note{color:var(--muted);margin-top:22px;font-size:.76rem;line-height:1.45}.profile-panel{color:#fff;background:linear-gradient(135deg,#176bff,#00a99d);border-radius:24px;padding:25px;box-shadow:0 18px 45px #176bff33}.profile-identity{align-items:center;gap:15px;display:flex}.profile-avatar{width:58px;height:58px;color:var(--primary-dark);background:#fff;border-radius:18px;place-items:center;font-size:1.7rem;font-weight:800;display:grid}.profile-identity h2{font-size:1.35rem}.profile-identity p{opacity:.88;margin-top:4px}.profile-stats{grid-template-columns:repeat(3,1fr);gap:10px;margin-top:23px;display:grid}.profile-stats div{text-align:center;background:#ffffff29;border-radius:15px;padding:13px 8px}.profile-stats strong,.profile-stats span{display:block}.profile-stats strong{font-size:1.4rem}.profile-stats span{opacity:.88;margin-top:3px;font-size:.74rem}.profile-section{margin-top:30px}.badge-grid{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:13px;display:grid}.badge-item{text-align:center;min-height:135px;box-shadow:var(--shadow);background:#fff;border-radius:18px;flex-direction:column;justify-content:center;align-items:center;gap:5px;padding:17px 12px;display:flex}.badge-item>span{font-size:2rem}.badge-item strong{font-size:.86rem}.badge-item small{color:var(--muted);font-size:.72rem}.badge-item.locked{filter:grayscale();opacity:.55}.practice-button{min-width:190px}.practice-button:disabled{cursor:default;opacity:.6}.practice-card{box-shadow:var(--shadow);background:#fff;border-radius:22px;padding:22px}.practice-topic{color:var(--primary-dark);text-transform:uppercase;font-size:.76rem;font-weight:800}.practice-card h3{margin-top:8px;line-height:1.45}.practice-options{margin-top:12px}.practice-correct{background:#dff8e9!important;border-color:#36a866!important}.practice-wrong{background:#ffe6e6!important;border-color:#df6868!important}.practice-complete{opacity:.72}.picture-activity{background:#f0fbf8;border:1px solid #00a99d29;border-radius:22px;margin-top:22px;padding:22px}.picture-activity-heading{align-items:flex-start;gap:12px;display:flex}.picture-activity-icon{font-size:1.65rem}.picture-activity-heading h3{font-size:1.05rem}.picture-activity-heading p{color:var(--muted);margin-top:4px;font-size:.88rem;line-height:1.5}.picture-activity-image,.picture-activity-visual{object-fit:contain;background:#fff;border-radius:16px;width:100%;max-width:420px;height:180px;margin:17px auto 0;display:block}.picture-activity-visual{place-items:center;font-size:4.5rem;display:grid}.picture-options{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:9px;margin-top:15px;display:grid}.picture-option{min-height:45px;color:var(--text);background:#fff;border:1px solid #dce5f1;border-radius:12px;padding:9px 11px;font-size:.86rem}.picture-option:disabled{cursor:default}.picture-feedback{min-height:22px;color:var(--primary-dark);text-align:center;margin-top:12px;font-weight:700}.home-greeting h2{font-family:var(--font-accent);color:var(--navy);font-size:clamp(1.9rem,4vw,2.5rem);font-weight:600;line-height:1.1}.home-greeting p{color:var(--muted);margin-top:4px;font-size:.95rem}.home-hero{border:1px solid var(--border);border-radius:var(--radius);background:var(--card);box-shadow:var(--shadow);grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);margin-top:20px;display:grid;overflow:hidden}.continue-card{color:var(--text);font:inherit;text-align:left;cursor:pointer;background:0 0;border:0;grid-template-columns:auto minmax(0,1fr);align-items:start;gap:6px 16px;padding:22px;display:grid}.continue-icon{background:var(--primary-soft);border-radius:14px;place-items:center;width:48px;height:48px;font-size:1.4rem;display:grid}.continue-copy{gap:3px;min-width:0;display:grid}.continue-copy small{color:var(--muted);font-size:.82rem;font-weight:700}.continue-copy strong{font-size:1.2rem;font-weight:800;line-height:1.25}.continue-copy em{color:var(--muted);font-size:.88rem;font-style:normal}.continue-progress{align-items:center;gap:10px;margin-top:10px;display:flex}.continue-progress b{color:var(--muted);font-size:.8rem}.progress-track{background:var(--primary-soft);border-radius:999px;flex:1;height:8px;overflow:hidden}.progress-track i{border-radius:inherit;background:var(--primary);min-width:8px;height:100%;display:block}.continue-resume{background:var(--navy);color:#fff;border-radius:999px;grid-column:2;justify-self:end;margin-top:8px;padding:9px 20px;font-size:.88rem;font-weight:800;transition:background .15s}.continue-card:hover .continue-resume{background:var(--primary-dark)}.hero-art{background:radial-gradient(circle at 78% 18%,#ffe7b0 0 46px,#0000 47px),linear-gradient(160deg,#fbe3c4,#f6c9a6 55%,#dba98f);place-items:center;min-height:170px;display:grid;position:relative}.hero-art-mascot{filter:drop-shadow(0 8px 10px #50321433);font-size:4.2rem}.hero-art-quote{color:#5b3b22;font-family:var(--font-accent);font-size:1.2rem;line-height:1.05;position:absolute;top:14px;left:16px;transform:rotate(-5deg)}.home-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:14px;display:grid}.stat-tile{border:1px solid var(--border);background:var(--card);border-radius:16px;align-items:center;gap:12px;padding:14px 16px;display:flex}.stat-tile>span{font-size:1.5rem}.stat-tile strong{font-size:1.15rem;font-weight:800;line-height:1.1;display:block}.stat-tile small{color:var(--muted);font-size:.78rem;font-weight:600}.home-section{margin-top:28px}.home-section h3{color:var(--navy);font-size:1.12rem;font-weight:800}.home-section>h3{margin-bottom:12px}.home-section-heading{justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px;display:flex}.offline-stamp{background:var(--mint);color:var(--mint-ink);border-radius:999px;padding:5px 11px;font-size:.74rem;font-weight:800}.text-link{color:var(--primary);font:inherit;cursor:pointer;background:0 0;border:0;font-size:.88rem;font-weight:800}.text-link:hover{text-decoration:underline}.explore-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;display:grid}.explore-tile{color:var(--text);font:inherit;text-align:left;cursor:pointer;border:1px solid #0000;border-radius:18px;justify-items:start;gap:4px;padding:16px;transition:transform .15s,box-shadow .15s;display:grid}.explore-icon{background:#ffffffbf;border-radius:13px;place-items:center;width:44px;height:44px;margin-bottom:8px;font-size:1.35rem;display:grid}.explore-tile strong{font-size:.98rem;font-weight:800}.explore-tile small{color:var(--muted);font-size:.78rem;line-height:1.3}.class-tile-grid{grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;display:grid}.class-tile{color:var(--text);font:inherit;cursor:pointer;border:2px solid #0000;border-radius:18px;justify-items:center;gap:2px;padding:12px 6px 10px;transition:transform .15s,box-shadow .15s;display:grid}.class-tile:hover{box-shadow:var(--shadow);transform:translateY(-3px)}.class-tile strong{font-size:1.3rem;font-weight:800;line-height:1}.class-tile-icon{font-size:1.6rem;line-height:1.3}.class-tile small{color:var(--muted);font-size:.7rem;font-weight:700}.class-tile.selected{border-color:var(--primary);background:var(--primary);color:#fff;box-shadow:0 10px 22px #3d4fb552}.class-tile.selected small{color:#ffffffd9}.learning-path{gap:10px;display:grid;position:relative}.path-line{display:none}.path-milestone{border:1px solid var(--border);background:var(--card);color:var(--text);font:inherit;text-align:left;cursor:pointer;border-radius:16px;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:14px;padding:12px 16px;transition:border-color .15s,box-shadow .15s;display:grid}.path-milestone:hover{border-color:var(--primary);box-shadow:var(--shadow)}.milestone-dot{background:var(--primary-soft);width:36px;height:36px;color:var(--primary-dark);border-radius:50%;place-items:center;font-size:.9rem;font-weight:800;display:grid}.milestone-copy{min-width:0;display:grid}.milestone-copy small{color:var(--muted);font-size:.76rem;font-weight:700}.milestone-copy strong{font-size:.98rem;font-weight:800}.milestone-status{background:var(--surface);color:var(--muted);border-radius:999px;padding:5px 12px;font-size:.74rem;font-weight:800}.path-milestone.active{border-color:var(--primary)}.path-milestone.active .milestone-dot,.path-milestone.active .milestone-status{background:var(--primary);color:#fff}.path-milestone.complete .milestone-dot,.path-milestone.complete .milestone-status{background:var(--mint);color:var(--mint-ink)}.journey-page-heading{margin-bottom:18px}.journey-page-heading h2{color:var(--navy);font-size:1.5rem;font-weight:800}.journey-page-heading p{color:var(--muted);margin-top:4px}.journey-kicker{color:var(--primary);letter-spacing:.08em;margin-bottom:4px;font-size:.74rem;font-weight:800;display:block}@media (width<=700px){.home-hero{grid-template-columns:minmax(0,1fr)}.hero-art{display:none}.explore-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.home-stats{gap:8px}.stat-tile{flex-direction:column;align-items:flex-start;gap:4px;padding:12px}.class-tile-grid{gap:8px}}.class-tile-grid.large{gap:16px;max-width:640px}.class-tile-grid.large .class-tile{box-shadow:var(--shadow);padding:18px 8px 14px}.class-tile-grid.large .class-tile strong{font-size:1.6rem}.class-tile-grid.large .class-tile-icon{font-size:2rem}.handwritten-note{color:var(--primary-dark);font-family:var(--font-accent);transform-origin:0;margin-top:26px;font-size:1.5rem;transform:rotate(-3deg)}.path-milestone .milestone-copy{background:0 0;border:0;padding:0}.path-milestone .milestone-status{text-transform:none}body{background:var(--background);color:var(--text);font-family:var(--font-body);-webkit-font-smoothing:antialiased;padding-bottom:0}#app{width:min(1080px,100%);margin:0 auto;padding:10px 36px 96px}:focus-visible{outline:3px solid var(--primary);outline-offset:2px}button:hover{transform:none}.section-heading{margin-bottom:20px}.section-heading h2{color:var(--navy);font-size:1.5rem;font-weight:800}.section-heading p{color:var(--muted);margin-top:4px;font-size:.95rem}.back-btn{border:1px solid var(--border);background:var(--card);box-shadow:none;color:var(--text);border-radius:999px;align-items:center;gap:6px;margin-bottom:16px;padding:8px 14px 8px 10px;font-size:.88rem;font-weight:700;display:inline-flex}.back-btn:hover{border-color:var(--primary);color:var(--primary-dark)}.action-btn,.primary-btn{background:var(--navy);color:#fff;border:0;border-radius:999px;padding:12px 24px;font-weight:800;transition:background .15s,transform .15s;box-shadow:0 8px 18px #16213f38}.action-btn:hover,.primary-btn:hover{background:var(--primary-dark);transform:translateY(-1px)}.action-btn:disabled{box-shadow:none;color:#8b8a86;cursor:not-allowed;background:#d9d6cf;transform:none}.language-card,.class-card,.chapter-card,.lesson-container,.quiz-card,.quiz-result,.auth-card,.profile-panel,.practice-card,.picture-activity,.empty-state,.badge-item{border:1px solid var(--border);border-radius:var(--radius);background:var(--card);box-shadow:var(--shadow);color:var(--text)}.language-card,.class-card,.chapter-card{transition:transform .15s,border-color .15s,box-shadow .15s}.language-card:hover,.class-card:hover,.chapter-card:hover{border-color:var(--primary);box-shadow:var(--large-shadow);transform:translateY(-3px)}.language-card h3,.class-card h3,.chapter-card h3{color:var(--navy);font-weight:800}.language-card p,.class-card p,.chapter-card 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color-mix(in srgb, var(--sunrise) 45%, transparent), var(--large-shadow)}.quiz-result-emoji{font-size:2.6rem}.quiz-score{margin:6px 0;font-size:1.1rem}.quiz-result-actions{flex-wrap:wrap;justify-content:center;gap:10px;margin-top:16px;display:flex}.quiz-result-actions .back-btn{margin:0}.practice-section{margin-top:24px}.practice-section-title{color:var(--text);margin-bottom:12px;font-size:1.1rem;font-weight:800}.weak-level-list{gap:12px;display:grid}.weak-level-card{background:var(--card);box-shadow:var(--shadow);border-radius:18px;justify-content:space-between;align-items:center;gap:16px;padding:16px 18px;display:flex}.weak-level-card.failed{border-left:5px solid var(--danger)}.weak-level-card.passed{border-left:5px solid var(--sun)}.weak-level-copy{flex:1;gap:4px;min-width:0;display:grid}.weak-level-copy small{color:var(--primary);font-size:.76rem;font-weight:800}.weak-level-copy strong{color:var(--text);font-weight:800}.weak-level-meta{color:var(--muted);font-size:.82rem}.weak-level-copy .progress-track{max-width:260px;height:6px;margin-top:4px}.practice-list{gap:14px;display:grid}.practice-card h3{margin:8px 0 12px}.practice-check{margin-top:12px}.practice-empty{text-align:center;justify-items:center;gap:10px;padding:36px 24px;display:grid}.practice-empty h3{color:var(--text)}.practice-empty p{max-width:420px;color:var(--muted)}@media (width<=600px){.weak-level-card{flex-direction:column;align-items:stretch}.quiz-submit-bar{bottom:calc(96px + env(safe-area-inset-bottom))}}.quiz-submit-bar[hidden],.quiz-result[hidden],.quiz-explanation[hidden],.practice-check[hidden]{display:none}@media (width>=901px){.quiz-submit-bar{padding-right:190px}}.theme-toggle{width:40px;height:40px;box-shadow:var(--shadow);color:var(--text);cursor:pointer;background:#ffffffd9;border:0;border-radius:50%;place-items:center;display:grid}.theme-toggle .icon-sun,.theme-toggle[data-theme=dark] .icon-moon{display:none}.theme-toggle[data-theme=dark] .icon-sun{display:block}[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--background:#0e0f23;--surface:#15163a;--card:#1b1c45;--border:#2e3070;--text:#ecebff;--muted:#a9a8d4;--navy:#ecebff;--primary:#8b84ff;--primary-dark:#c9c6ff;--primary-soft:#2a2a66;--success:#34d399;--danger:#f87171;--sun:#fbbf24;--lavender:#2a2560;--lavender-ink:#c4b8ff;--mint:#123d33;--mint-ink:#6ee7b7;--sky:#13315a;--sky-ink:#93c5fd;--peach:#4a2618;--peach-ink:#fdba8c;--butter:#3d3212;--butter-ink:#fcd34d;--shadow:0 8px 24px #00000059;--large-shadow:0 22px 48px #00000080;--glow:0 12px 28px #7c74ff59}[data-theme=dark] body{background:radial-gradient(circle at 0% 0%, #ff8a4c1a 0, transparent 34rem), radial-gradient(circle at 100% 0%, #7c3aed2e 0, transparent 38rem), var(--background);color:var(--text);background-attachment:fixed}[data-theme=dark] .sidebar{background:radial-gradient(circle at 20% 105%,#ff8a4c33,#0000 14rem),linear-gradient(#090a1c 0%,#15134a 100%)}[data-theme=dark] .side-nav .nav-item.active{background:var(--primary-soft);color:#fff;box-shadow:none}[data-theme=dark] .theme-toggle,[data-theme=dark] .language-switch,[data-theme=dark] .account-button,[data-theme=dark] .account-chip,[data-theme=dark] .back-btn{border-color:var(--border);background:var(--card);color:var(--text)}[data-theme=dark] .account-name{color:var(--text)}[data-theme=dark] .bottom-nav{background:#1b1c45f7}[data-theme=dark] .topbar-brand,[data-theme=dark] #app h1,[data-theme=dark] #app h2,[data-theme=dark] #app h3,[data-theme=dark] #app h4,[data-theme=dark] .lesson-title,[data-theme=dark] .lesson-description,[data-theme=dark] .info-box,[data-theme=dark] .info-box li,[data-theme=dark] .milestone-copy strong,[data-theme=dark] .stat-tile strong,[data-theme=dark] .continue-copy strong,[data-theme=dark] .profile-identity h2,[data-theme=dark] .profile-stats strong,[data-theme=dark] .badge-item strong,[data-theme=dark] .auth-card label,[data-theme=dark] .class-tile strong{color:var(--text)}[data-theme=dark] .section-heading p,[data-theme=dark] .journey-page-heading p,[data-theme=dark] .milestone-copy small,[data-theme=dark] .stat-tile small,[data-theme=dark] .continue-copy small,[data-theme=dark] .continue-copy em,[data-theme=dark] .explore-tile small,[data-theme=dark] .class-tile small,[data-theme=dark] .profile-identity p,[data-theme=dark] .profile-stats span,[data-theme=dark] .badge-item small,[data-theme=dark] .auth-intro,[data-theme=dark] .auth-note,[data-theme=dark] .language-card p,[data-theme=dark] .chapter-card p,[data-theme=dark] .class-card p{color:var(--muted)}[data-theme=dark] .text-link,[data-theme=dark] .journey-kicker,[data-theme=dark] .quiz-progress,[data-theme=dark] .chapter-number{color:var(--primary)}[data-theme=dark] .language-card,[data-theme=dark] .class-card,[data-theme=dark] .chapter-card,[data-theme=dark] .lesson-container,[data-theme=dark] .quiz-card,[data-theme=dark] .quiz-result,[data-theme=dark] .auth-card,[data-theme=dark] .profile-panel,[data-theme=dark] .practice-card,[data-theme=dark] .picture-activity,[data-theme=dark] .empty-state,[data-theme=dark] .offline-ai-settings,[data-theme=dark] .badge-item,[data-theme=dark] .stat-tile,[data-theme=dark] .path-milestone,[data-theme=dark] .weak-level-card,[data-theme=dark] .quiz-level-tab,[data-theme=dark] .quiz-submit-bar,[data-theme=dark] .profile-stats div{border-color:var(--border);background:var(--card);color:var(--text)}[data-theme=dark] .path-milestone.active{background:var(--card);box-shadow:0 0 0 2px var(--primary), var(--large-shadow)}[data-theme=dark] .milestone-dot{border-color:var(--card);background:var(--primary-soft);color:var(--primary-dark)}[data-theme=dark] .milestone-status{background:var(--surface);color:var(--muted)}[data-theme=dark] .learning-path:before{border-left-color:var(--border)}[data-theme=dark] .home-banner .continue-card{color:var(--text);background:#15163af0}[data-theme=dark] .progress-track{background:var(--primary-soft)}[data-theme=dark] .lesson-image,[data-theme=dark] .lesson-fallback-visual{background:#fff}[data-theme=dark] .info-box{background:linear-gradient(135deg,#24215a,#1d1b4d)}[data-theme=dark] .info-box.activity-box{background:linear-gradient(135deg,#3a2f12,#2c240f)}[data-theme=dark] .picture-option,[data-theme=dark] .quiz-option{border-color:var(--border);background:var(--surface);color:var(--text)}[data-theme=dark] .quiz-option.selected{border-color:var(--primary);background:var(--primary-soft)}[data-theme=dark] .quiz-option.correct{border-color:var(--success);background:#34d39924}[data-theme=dark] .quiz-option.wrong{border-color:var(--danger);background:#f8717124}[data-theme=dark] .tone-lavender{background:linear-gradient(145deg,#2b2566,#211c52)}[data-theme=dark] .tone-mint{background:linear-gradient(145deg,#11453a,#0d342c)}[data-theme=dark] .tone-sky{background:linear-gradient(145deg,#143866,#0f2b4f)}[data-theme=dark] .tone-peach{background:linear-gradient(145deg,#552c1b,#3f2014)}[data-theme=dark] .tone-lavender strong{color:#c9bfff}[data-theme=dark] .tone-mint strong{color:#7ff0c3}[data-theme=dark] .tone-sky strong{color:#a5ccff}[data-theme=dark] .tone-peach strong{color:#ffc29e}[data-theme=dark] .explore-icon{background:#ffffff1a}[data-theme=dark] .explore-tile:after,[data-theme=dark] .class-tile:before{background:#ffffff0f}[data-theme=dark] .class-tile.tone-0{background:linear-gradient(160deg,#4a3d12,#382d0c)}[data-theme=dark] .class-tile.tone-1{background:linear-gradient(160deg,#11453a,#0d342c)}[data-theme=dark] .class-tile.tone-2{background:linear-gradient(160deg,#143866,#0f2b4f)}[data-theme=dark] .class-tile.tone-3{background:linear-gradient(160deg,#2b2566,#211c52)}[data-theme=dark] .class-tile.tone-4{background:linear-gradient(160deg,#552c1b,#3f2014)}[data-theme=dark] .class-tile.selected{background:var(--gradient-primary)}[data-theme=dark] .home-stats .stat-tile>span{filter:saturate(.9)brightness(.85)}[data-theme=dark] .offline-stamp{color:var(--mint-ink);background:#34d39929}[data-theme=dark] input,[data-theme=dark] .auth-card input{border-color:var(--border);background:var(--surface);color:var(--text)}[data-theme=dark] input::placeholder{color:var(--muted)}[data-theme=dark] .chat-box{background:var(--background)}[data-theme=dark] .chat-languages{background:var(--surface)}[data-theme=dark] .chat-languages button{color:var(--muted)}[data-theme=dark] .chat-languages button[aria-pressed=true]{color:#fff}[data-theme=dark] .bot-message .message-content,[data-theme=dark] .bot-message:before,[data-theme=dark] .chat-input-field{background:var(--card);color:var(--text)}[data-theme=dark] #chatInput{color:var(--text)}[data-theme=dark] .message.thinking .message-content{background:var(--surface)}[data-theme=dark] .suggestions button{filter:brightness(.82)saturate(.9)}[data-theme=dark] .assistant-actions button{border-color:var(--border);color:var(--primary-dark)}[data-theme=dark] .offline-ai-status-card{border-color:var(--border);background:var(--card);color:var(--muted)}