@font-face{font-family:Nunito;font-style:normal;font-weight:400 1000;font-display:swap;src:url(/fonts/nunito-latin.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Tossface;font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/tossface-subset.woff2) format("woff2");unicode-range:U+203C,U+2049,U+2122,U+2139,U+2194-2199,U+21A9-21AA,U+231A-231B,U+2328,U+23CF,U+23E9-23F3,U+23F8-23FA,U+24C2,U+25AA-25AB,U+25B6,U+25C0,U+25FB-25FE,U+2600-27BF,U+2934-2935,U+2B00-2BFF,U+3030,U+303D,U+3297,U+3299,U+FE00-FE0F,U+200D,U+20E3,U+1F000-1FAFF,U+1F1E6-1F1FF}:root{--primary: #841aff;--primary-dark: #6614cc;--primary-deep: #4e0f9c;--primary-tint: #f1e8ff;--on-primary-tint: #5a13b3;--success: #10a05a;--success-dark: #0c7d46;--success-tint: #dcf6e8;--success-text: #0b6f3f;--danger: #e5352b;--danger-dark: #c01e15;--danger-tint: #ffe4e1;--danger-text: #bf1c13;--gold: #f5a623;--gold-dark: #d4881a;--streak-text: #a85e09;--gem: #5b4be0;--gem-dark: #4438b8;--gem-text: #4133b0;--text: #2a2340;--text-sub: #675f7d;--gray: #a8a2b8;--border: #e8e4f0;--bg: #ffffff;--surface: #ffffff;--surface-dim: #f6f4fb;--chip-on-bright: #2a2340;--good-bg: var(--success-tint);--good-text: var(--success-text);--bad-bg: var(--danger-tint);--bad-text: var(--danger-text);--tint-blue: var(--primary-tint);--on-tint-blue: var(--on-primary-tint);--tint-green: var(--success-tint);--tint-yellow: #fff3d6;--tint-orange: #fff0e0;--hearts-text: var(--danger-text);--gems-text: var(--gem-text);--nav-active-text: var(--on-primary-tint);--green: var(--primary);--green-dark: var(--primary-dark);--green-light: var(--primary-tint);--blue: var(--gem);--blue-dark: var(--gem-dark);--red: var(--danger);--red-dark: var(--danger-dark);--red-light: var(--danger-tint);--yellow: var(--gold);--orange: var(--gold);--orange-dark: var(--gold-dark);--purple: var(--primary);--dur-press: .08s;--dur-quick: .15s;--dur-base: .25s;--dur-slow: .45s;--ease-spring: cubic-bezier(.22, 1.2, .36, 1);--ease-out: cubic-bezier(.215, .61, .355, 1)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}*{scrollbar-width:none;-ms-overflow-style:none}*::-webkit-scrollbar{width:0;height:0;display:none}html,body,#root{height:100%}body{margin:0;font-family:Nunito,Tossface,-apple-system,Apple SD Gothic Neo,Malgun Gothic,sans-serif;font-weight:700;color:var(--text);background:var(--bg)}.tossface{font-family:Tossface,Nunito,sans-serif;font-weight:400;font-style:normal;display:inline-flex;align-items:center;justify-content:center;line-height:1;vertical-align:middle;-webkit-font-smoothing:auto}button{font-family:inherit;font-weight:800;cursor:pointer;border:none;background:none;color:inherit}button:disabled{cursor:default}.btn-3d{padding:13px 28px;border-radius:16px;font-size:19px;letter-spacing:.6px;text-transform:uppercase;transition:filter 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var(--border);display:flex;justify-content:center;gap:2px;padding:6px 0 10px}.nav-btn{display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 14px;border-radius:14px;border:2px solid transparent}.nav-icon{font-size:24px}.nav-label{font-size:11px;color:var(--text-sub);font-weight:800}.nav-active{border-color:var(--primary);background:var(--tint-blue)}.nav-active .nav-label{color:var(--nav-active-text)}.nav-icon-wrap{position:relative;display:inline-flex}.nav-badge{position:absolute;top:-6px;right:-9px;min-width:18px;height:18px;padding:0 4px;border-radius:9px;background:var(--hearts-text);color:#fff;font-size:11px;font-weight:900;line-height:18px;text-align:center;border:2px solid var(--surface)}@media(min-width:1024px){.topbar,.bottom-nav{display:none}.shell-cols{gap:24px;padding:0 20px}.side-nav{display:flex;flex-direction:column;gap:8px;width:84px;flex:none;padding:20px 12px;border-right:2px solid 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polyline{fill:none;stroke-width:3;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:1 9;opacity:.8;animation:trendFlow 1.4s linear infinite}@keyframes trendFlow{to{stroke-dashoffset:-10}}.node-row{z-index:1}.path-node{animation:nodePop .45s var(--ease-spring, cubic-bezier(.34, 1.56, .64, 1)) backwards;animation-delay:var(--d, 0ms)}@keyframes nodePop{0%{transform:scale(.4);opacity:0}to{transform:scale(1);opacity:1}}.node-row{position:relative;display:flex;flex-direction:column;align-items:center;--nx-scale: 1;transform:translate(calc(var(--nx, 0px) * var(--nx-scale)))}@media(max-width:560px){.node-row{--nx-scale: .62}}.path-node{position:relative;width:64px;height:64px;border-radius:50%;display:grid;place-items:center;background:var(--surface);border:5px solid var(--border);transition:transform var(--dur-press)}.path-node:active:not(:disabled){transform:scale(.93)}.node-icon{display:grid;place-items:center}.node-done .node-icon{color:#fff}.node-active 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var(--border);border-radius:16px;padding:20px;font-size:18px;line-height:1.6;margin-bottom:22px;background:var(--surface-dim)}.tf-quote{color:var(--text-sub);font-weight:900}.tf-buttons{display:flex;gap:14px}.tf-btn{flex:1;font-size:34px;font-weight:900;padding:18px;border:2px solid var(--border);border-radius:16px;background:var(--surface);box-shadow:0 3px 0 var(--border)}.tf-o{color:var(--success-dark)}.tf-x{color:var(--red)}.fill-sentence{font-size:19px;line-height:2.1;margin-bottom:26px}.fill-slot{display:inline-block;min-width:90px;border-bottom:3px solid var(--gray);text-align:center;padding:0 6px;margin:0 4px;color:var(--blue-dark);font-weight:900}.fill-slot-filled{border-bottom-color:var(--blue)}.word-bank{display:flex;flex-wrap:wrap;gap:10px}.chip{border:2px solid var(--border);border-radius:12px;background:var(--surface);padding:10px 16px;font-size:16px;font-weight:700;box-shadow:0 3px 0 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var(--primary-dark)}.ccard-done{opacity:.82}.ccard-icon{display:flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:12px;flex-shrink:0;margin-top:1px}.ccard-body{flex:1;display:flex;flex-direction:column;gap:3px;min-width:0}.ccard-title-row{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.ccard-title{font-size:15.5px;font-weight:900;color:var(--text)}.ccard-badge{display:inline-flex;align-items:center;gap:3px;font-size:10.5px;font-weight:900;letter-spacing:.3px;background:var(--surface-dim);color:var(--text-sub);border-radius:8px;padding:2px 7px}.ccard-badge-start{background:var(--gold);color:#4a3400}.ccard-badge-step{background:var(--primary-tint);color:var(--on-primary-tint)}.ccard-tagline{font-size:12.5px;color:var(--text-sub);font-weight:700;line-height:1.4;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ccard-meta{display:flex;align-items:center;gap:5px;font-size:11.5px;font-weight:800;color:var(--text-sub);margin-top:1px}.ccard-dot{color:var(--gray)}.ccard-progress-text{color:var(--on-primary-tint)}.ccard-track{height:5px;background:var(--surface-dim);border-radius:4px;overflow:hidden;margin-top:5px}.ccard-fill{display:block;height:100%;border-radius:4px}.course-chip{min-height:44px;font-size:20px;border:2px solid var(--border);border-radius:10px;padding:2px 8px;background:var(--surface);box-shadow:0 2px 0 var(--border)}.course-chip:active{transform:translateY(2px);box-shadow:none}.course-chip-name{display:none;font-size:13px;font-weight:900;color:var(--text);max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.course-chip-caret{color:var(--text-sub);flex-shrink:0}@media(min-width:700px){.course-chip-name{display:inline-block}}.ex-wrap{animation:exIn .28s cubic-bezier(.22,1,.36,1)}@keyframes exIn{0%{opacity:0;transform:translate(26px)}to{opacity:1;transform:translate(0)}}.combo-chip{font-size:15px;font-weight:900;color:var(--orange);background:var(--tint-orange);border:2px solid #ffd9a1;border-radius:12px;padding:3px 10px;white-space:nowrap;animation:comboPop .35s cubic-bezier(.34,1.8,.64,1)}@keyframes comboPop{0%{transform:scale(.6)}60%{transform:scale(1.25)}to{transform:scale(1)}}.combo-chip-hot{color:#fff;background:linear-gradient(135deg,#ff8a00,#ff3d00);border-color:#ffb26b;animation:comboPop .35s cubic-bezier(.34,1.8,.64,1),comboBurn 1s ease-in-out infinite alternate}@keyframes comboBurn{0%{transform:scale(1)}to{transform:scale(1.08) rotate(-2deg)}}.combo-hot{position:relative}.combo-hot:after{content:"";position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:30;background:radial-gradient(120% 60% at 50% 110%,rgba(255,122,0,.22),transparent 60%),radial-gradient(120% 40% at 50% -10%,rgba(132,26,255,.15),transparent 60%);opacity:.9;animation:heatPulse 1.6s ease-in-out infinite alternate}@keyframes heatPulse{0%{opacity:.55}to{opacity:1}}.lesson-shake{animation:shake .38s cubic-bezier(.36,.07,.19,.97)}@keyframes shake{10%,90%{transform:translate(-2px)}20%,80%{transform:translate(4px)}30%,50%,70%{transform:translate(-7px)}40%,60%{transform:translate(7px)}}.rank-up-banner{display:inline-flex;align-items:center;gap:8px;margin-top:10px;padding:10px 18px;border-radius:14px;font-weight:900;color:#fff;background:linear-gradient(135deg,var(--primary),#b16bff);animation:rankUpIn .6s cubic-bezier(.34,1.56,.64,1) 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var(--ease-out)}.bird3d-ready .bird3d-canvas{opacity:1}.odds3d{display:flex;flex-direction:column;gap:8px}.odds3d-stage{position:relative;width:100%}.odds3d-canvas{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;transition:opacity .45s var(--ease-out)}.odds3d-ready .odds3d-canvas{opacity:1}.odds3d-legend{display:flex;justify-content:center;gap:22px;font-size:14px;font-weight:800}.odds3d-leg{display:inline-flex;align-items:center;gap:6px;color:var(--text-sub)}.odds3d-leg b{color:var(--text);font-weight:900}.odds3d-leg .odds3d-dot{width:9px;height:9px;border-radius:50%}.odds3d-leg.yes .odds3d-dot{background:var(--success)}.odds3d-leg.no .odds3d-dot{background:var(--danger)}.odds3d-leg.mine{color:var(--text)}.odds3d-leg.mine b{color:var(--gold)}.coin3d{position:relative;display:grid;place-items:center;margin:0 auto}.coin3d-canvas{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;transition:opacity .35s var(--ease-out)}.coin3d-ready .coin3d-canvas{opacity:1}.course-done-card{text-align:center;background:linear-gradient(160deg,#fffbe6,#fff);border:2px solid var(--yellow);border-radius:18px;padding:20px 18px;margin-bottom:14px;box-shadow:0 4px #ffc80059}.course-done-emoji{font-size:40px}.course-done-title{font-size:19px;font-weight:900;margin:4px 0 6px}.course-done-body{font-size:14px;font-weight:700;color:var(--text-sub);line-height:1.5;margin-bottom:14px}.course-grad-card{background:linear-gradient(160deg,var(--success-tint),#fff);border-color:var(--success);box-shadow:0 4px #10a05a4d}.settings-row{width:100%;display:flex;align-items:center;justify-content:space-between;background:var(--surface-dim);border:2px solid var(--border);border-radius:14px;padding:14px 16px;margin-bottom:12px}.settings-label{font-size:16px;font-weight:800}.settings-toggle{width:48px;height:28px;border-radius:999px;background:var(--gray);display:flex;align-items:center;padding:3px;transition:background var(--dur-quick)}.settings-toggle-on{background:var(--green);justify-content:flex-end}.settings-knob{width:22px;height:22px;border-radius:50%;background:var(--surface)}.theme-seg{display:inline-flex;gap:2px;background:var(--surface);border:2px solid var(--border);border-radius:999px;padding:3px}.theme-seg-btn{font-size:13px;font-weight:800;color:var(--text-sub);padding:7px 13px;border-radius:999px;line-height:1;transition:background var(--dur-quick),color var(--dur-quick)}.theme-seg-btn:active{transform:scale(.94)}.theme-seg-btn-on{background:var(--primary);color:#fff}.course-grad-card .course-done-body{color:var(--text)}.guide-intro-tag{display:inline-block;background:#ffffffe6;color:var(--text);font-size:12px;font-weight:900;padding:3px 10px;border-radius:999px;margin-bottom:8px}.hearts-intro-row{font-size:30px;display:flex;justify-content:center;gap:4px;margin-bottom:6px}.hearts-intro-lost{animation:heartDrop .6s ease}@keyframes heartDrop{0%{transform:scale(1.5) translateY(-6px);opacity:0}60%{transform:scale(1.1)}to{transform:scale(1);opacity:1}}@media(max-width:480px){.lesson-prompt{font-size:18px}.stat-cards{flex-wrap:wrap}.tf-btn{font-size:28px}.feedback-row{flex-direction:column;align-items:stretch;gap:12px}.feedback-row>.btn-3d{width:100%}.feedback-mascot{width:46px;height:46px}.feedback-title{font-size:16px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}html{scroll-behavior:auto!important}}:focus-visible{outline:3px solid var(--blue);outline-offset:2px;border-radius:6px}:root[data-theme=dark]{--bg: #131017;--surface: #1e1926;--surface-dim: #191320;--border: #352d45;--text: #f2eefb;--text-sub: #b0a6c2;--gray: #6b6180;--primary: #9d4bff;--primary-dark: #6614cc;--primary-tint: #271b3a;--on-primary-tint: #cbaaff;--gem: #7c6cf0;--gem-dark: #4438b8;--gem-text: #b3a7ff;--chip-on-bright: #2a2340;--green-light: #1e3a10;--red-light: #3f1a1c;--tint-blue: var(--primary-tint);--on-tint-blue: var(--on-primary-tint);--tint-green: #1c3512;--tint-yellow: #3a3112;--tint-orange: #3a2a12;--good-bg: #1e3a10;--good-text: #8ee94f;--bad-bg: #3f1a1c;--bad-text: #ff9b9b;--streak-text: #ffb020;--gems-text: var(--gem-text);--hearts-text: #ff7070;--nav-active-text: var(--on-primary-tint)}:root[data-theme=dark] .course-done-card,:root[data-theme=dark] .course-grad-card{background:var(--surface-dim)}.logo{display:inline-flex;align-items:center;gap:6px}.topbar-stats .stat{display:inline-flex;align-items:center;gap:4px}.course-chip{display:inline-flex;align-items:center;justify-content:center;gap:5px;color:var(--primary)}.nav-icon{display:flex;align-items:center;justify-content:center;color:var(--text-sub)}.nav-active .nav-icon{color:var(--nav-active-text)}.choice-emoji{display:flex;align-items:center;color:var(--primary)}.node-icon{display:flex;align-items:center;justify-content:center}.daily-goal-icon{display:flex;align-items:center;color:var(--gold-dark)}.path-journey-emoji{display:flex;align-items:center;justify-content:center;color:var(--primary)}.path-journey-step.done .path-journey-emoji{color:var(--success)}.welcome-point-icon,.badge-icon{display:flex;align-items:center;justify-content:center;color:var(--primary)}.badge-locked .badge-icon{color:var(--gray)}.course-flag{display:flex;align-items:center;justify-content:center;color:var(--primary)}.league-avatar{display:flex;align-items:center;justify-content:center;color:var(--text-sub)}.league-me .league-avatar{color:var(--primary)}.league-shield{display:flex;align-items:center;justify-content:center;color:var(--gold-dark)}.streak-flame{display:flex;align-items:center;justify-content:center;color:var(--gold);animation:bob 1.2s ease-in-out infinite}.week-dot{color:var(--gold-dark)}.stat-card-value{display:flex;align-items:center;justify-content:center;gap:5px}.hearts-intro-row{display:flex;justify-content:center;gap:5px;color:var(--danger)}.hearts-intro-lost{color:var(--gray)}.broken-heart{display:flex;justify-content:center;color:var(--danger);margin-bottom:4px}.heart-icon{display:inline-flex;color:var(--danger)}.combo-chip{display:inline-flex;align-items:center;gap:3px}.guide-example{display:flex;align-items:flex-start;gap:6px}.guide-example svg{flex-shrink:0;margin-top:2px;color:var(--gold-dark)}.feedback-icon{display:flex;align-items:center}.course-reco-badge{display:inline-flex;align-items:center;gap:3px}.mistakes-toggle,.settings-label,.course-market,.course-vol,.path-journey-title,.league-note{display:inline-flex;align-items:center;gap:4px}