:root{color-scheme:dark;--bg:#151a2a;--panel:#20283e;--panel2:#2a344d;--line:#35425d;--muted:#a7b5cc;--white:#f7f7fa;--mint:#b0edce;--mint-dark:#1b3d32;--pink:#f3afc4;--gold:#ffdb91;--red:#f68d9f;--shadow:0 14px 42px #0a0f204f;font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display", "Segoe UI",sans-serif;font-synthesis:none}
*{box-sizing:border-box}html{min-height:100%;background:var(--bg)}body{margin:0;background:radial-gradient(circle at 25% 2%,#252c49 0,transparent 44%),var(--bg);color:var(--white);min-height:100vh;-webkit-tap-highlight-color:transparent}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.48}button:focus-visible,input:focus-visible{outline:3px solid var(--gold);outline-offset:3px}h1,h2,h3,p{margin:0}.hidden{display:none!important}.app{max-width:540px;margin:0 auto;min-height:100dvh;padding:env(safe-area-inset-top) 15px calc(96px + env(safe-area-inset-bottom));position:relative}.topbar{height:76px;display:flex;align-items:center;justify-content:space-between;gap:10px}.brand{display:flex;align-items:center;gap:9px;font-size:12px;font-weight:900;letter-spacing:1.25px}.brand-mark{display:grid;place-items:center;background:#45324d;border:1px solid #784760;color:#f8b7ca;border-radius:15px;width:36px;height:36px;font-size:23px}.brand span:last-child{color:var(--mint)}.top-xp{display:flex;align-items:center;gap:6px;background:#2a3446;color:var(--gold);padding:9px 12px;border:1px solid #424d66;border-radius:30px;font-weight:800;font-size:13px;white-space:nowrap}.muted{color:var(--muted)}.eyebrow{color:var(--mint);font-size:11px;font-weight:850;text-transform:uppercase;letter-spacing:1.6px}.hero h1{font-size:32px;line-height:1.1;letter-spacing:-1px;margin:8px 0}.lead{color:#c4cee0;font-size:14px;line-height:1.55}.card{border-radius:19px;background:var(--panel);border:1px solid #3a4864;box-shadow:var(--shadow)}.card-pad{padding:18px}.section-title{font-size:18px;font-weight:850;letter-spacing:-.35px}.between{display:flex;align-items:center;justify-content:space-between;gap:10px}.row{display:flex;align-items:center;gap:10px}.stack{display:flex;flex-direction:column;gap:12px}.section{margin-top:23px}.subtle{font-size:12px;color:var(--muted);line-height:1.5}.progress-track{height:9px;background:#3b4660;border-radius:30px;overflow:hidden}.progress-track>span{display:block;height:100%;background:linear-gradient(90deg,#75c7a8,#c6eaa4);border-radius:30px;transition:width .3s}.badge{display:inline-flex;align-items:center;border-radius:30px;background:#344157;padding:6px 10px;font-size:11px;font-weight:750;color:#dbe7f4;white-space:nowrap}.badge.mint{background:#244b40;color:#b4eed0}.badge.gold{background:#594b35;color:#ffdc95}.btn{display:flex;align-items:center;justify-content:center;gap:8px;background:var(--mint);color:#1b392e;font-size:15px;font-weight:900;border:1px solid transparent;border-radius:15px;padding:14px 18px;min-height:50px;width:100%;text-align:center;transition:transform .12s}.btn:active,.choice:active,.nav-item:active{transform:scale(.98)}.btn.secondary{background:var(--panel2);border-color:#4f5f79;color:var(--white)}.btn.ghost{background:transparent;color:var(--muted);border-color:#43516a}.btn.small{padding:9px 13px;min-height:40px;width:auto;font-size:13px;border-radius:11px}.spaced{margin-top:16px}.fox-card{margin-top:16px;position:relative;overflow:hidden;background:linear-gradient(125deg,#3c3a5f,#223e50);border:1px solid #566187;border-radius:21px;padding:22px;box-shadow:var(--shadow)}.fox-card:before{content:'✿';position:absolute;top:-47px;right:-18px;font-size:175px;color:#ffa6bf17}.fox-face{display:grid;place-items:center;width:83px;height:83px;border:2px solid #6b7a94;background:#41546e;border-radius:23px;font-size:48px;box-shadow:inset 0 0 30px #11182b70;margin-right:12px;flex-shrink:0}.fox-title{font-size:19px;font-weight:880;line-height:1.28}.fox-text{font-size:13px;color:#d9dff0;line-height:1.55;margin:9px 0 17px;max-width:310px}.statline{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin-top:15px}.mini-stat{background:#222c43;border:1px solid #3e4b67;padding:13px 10px;border-radius:14px}.mini-stat strong{font-size:19px;display:block;color:#ffdfab}.mini-stat small{font-size:10px;color:#a8b6ca;display:block;margin-top:4px}.world{margin-top:15px;background:#222b42;border:1px solid #425271;border-radius:19px;padding:16px}.world-header{display:flex;gap:12px;align-items:center;margin-bottom:16px}.world-emoji{background:#384661;width:49px;height:49px;border-radius:15px;display:grid;place-items:center;font-size:27px}.world-title{font-size:16px;font-weight:850}.nodes{display:flex;flex-direction:column;gap:11px}.node{width:100%;display:flex;gap:13px;align-items:center;background:#2c3852;border:1px solid #50627f;padding:13px;border-radius:15px;color:#f0f4fa;text-align:left}.node .node-symbol{font-size:26px;width:48px;height:50px;border-radius:13px;display:grid;place-items:center;background:#405575;flex-shrink:0}.node .node-info{flex:1}.node-title{font-size:14px;font-weight:800}.node-sub{color:#b4c2d7;font-size:11px;margin-top:4px}.node.current{border-color:#86dfb7;box-shadow:0 0 0 1px #90dfb580}.node.complete{background:#254036;border-color:#4a8a71}.node.locked{opacity:.62}.node-right{font-size:21px}.world-teaser{padding:16px;background:#212b41;border:1px dashed #51617c;border-radius:17px;margin-top:10px;display:flex;align-items:center;gap:12px}.world-teaser .big{font-size:30px}.footer-nav{position:fixed;bottom:0;left:0;right:0;background:#1b2537f5;border-top:1px solid #465271;z-index:9;padding-bottom:env(safe-area-inset-bottom);backdrop-filter:blur(14px)}.nav-inner{max-width:540px;margin:0 auto;display:grid;grid-template-columns:repeat(5,1fr)}.nav-item{border:0;background:transparent;color:#95a6bd;min-height:68px;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:4px;font-size:10px;font-weight:700}.nav-item .nav-icon{font-size:23px}.nav-item.active{color:#b9f1d2}.nav-item.active .nav-icon{filter:drop-shadow(0 0 5px #72cc9a88)}.lesson-top{margin-bottom:14px}.lesson-title{font-size:25px;margin-top:7px;line-height:1.2}.back{background:transparent;border:1px solid #4e5e78;border-radius:11px;padding:8px 11px;color:var(--white)}.heartline{display:flex;gap:3px;font-size:16px;letter-spacing:-2px}.kana-focus{background:radial-gradient(circle at 50% 35%,#465071,#253450 70%);border:1px solid #536483;border-radius:21px;text-align:center;padding:18px 14px;margin:20px 0}.kana-big{font-size:112px;line-height:1.27;font-family:"Hiragino Kaku Gothic ProN","Yu Gothic","Noto Sans CJK JP",sans-serif}.kana-romaji{font-size:25px;color:var(--gold);font-weight:850}.sound-btn{background:#3f506a;border:1px solid #66819a;color:#fff;border-radius:12px;padding:12px 16px;font-weight:750;margin-top:15px}.tip{padding:15px;background:#263c41;border:1px solid #41665c;border-radius:14px;color:#c6f1dc;font-size:13px;line-height:1.65;margin:12px 0}.tip b{color:#fff}.quiz-options{display:grid;grid-template-columns:repeat(2,1fr);gap:11px;margin:21px 0}.choice{min-height:105px;background:#2e3b54;border:1.5px solid #596b89;border-radius:16px;font-size:48px;color:#f9faff;font-family:"Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif}.choice.roman{font:900 30px -apple-system,BlinkMacSystemFont,sans-serif}.choice.correct{background:#2a5244;border-color:#8fe6b7}.choice.wrong{background:#573641;border-color:#f08e9b}.feedback{padding:14px;border-radius:13px;margin-bottom:13px;font-size:13px;line-height:1.5;font-weight:700}.feedback.good{background:#244b3e;color:#c1f4d9}.feedback.bad{background:#593943;color:#ffccd5}.draw-card{background:#232f46;border:1px solid #455675;border-radius:19px;padding:13px;margin:17px 0}.drawing{width:100%;height:250px;background:#f8f5e9;border-radius:15px;margin:12px 0 10px;position:relative;overflow:hidden;touch-action:none;user-select:none}.drawing:before,.drawing:after{content:'';position:absolute;background:#e0dddb;z-index:0}.drawing:before{height:1px;top:50%;left:0;right:0}.drawing:after{width:1px;left:50%;top:0;bottom:0}.drawing-ghost{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:184px;color:#cfd1ce;font-family:"Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;pointer-events:none;z-index:0}.drawing-canvas{width:100%;height:100%;position:absolute;inset:0;touch-action:none;z-index:1;display:block}.drawing-tools{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}.word-cells{display:grid;grid-template-columns:repeat(var(--letters),minmax(0,1fr));gap:8px;margin:15px 0}.writing-cell{background:#faf7ef;border-radius:12px;position:relative;aspect-ratio:1;overflow:hidden;touch-action:none}.writing-cell:before,.writing-cell:after{content:'';position:absolute;z-index:0;background:#dfdfdd}.writing-cell:before{top:50%;height:1px;left:0;right:0}.writing-cell:after{left:50%;width:1px;top:0;bottom:0}.writing-cell .ghost{font-family:"Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;font-size:clamp(40px,14vw,78px);position:absolute;inset:0;display:grid;place-items:center;color:#d5d7d3;pointer-events:none}.writing-cell canvas{position:absolute;inset:0;width:100%;height:100%;z-index:1;touch-action:none}.section-row{margin:17px 0 10px}.word-option{border:1px solid #556783;border-radius:12px;background:#2d3c56;color:#f4f7fd;padding:10px 14px;font-weight:750;min-height:45px}.word-option.on{border-color:#95e8be;background:#2e5549}.word-options{display:flex;flex-wrap:wrap;gap:8px}.reveal-answer{font-size:32px;text-align:center;margin:15px 0}.rate-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.rate-grid button{background:#31405b;border:1px solid #566a87;border-radius:12px;color:#fff;min-height:62px;font-size:13px;font-weight:800}.rate-grid button small{display:block;font-size:10px;color:#b4c0cf;margin-top:6px}.rate-grid button:first-child{border-color:#f1a7b1}.rate-grid button:last-child{border-color:#88d8ac}.story-panel{background:linear-gradient(140deg,#303c59,#262d46);border:1px solid #5b6786;border-radius:19px;margin:15px 0;padding:16px;min-height:200px}.scene-art{height:95px;background:radial-gradient(circle at center,#65749255,transparent 67%),#394862;border:1px solid #526786;border-radius:14px;display:grid;place-items:center;font-size:46px}.speech-bubble{background:#f8f4e9;color:#23283a;border-radius:17px;padding:13px 16px;margin-top:12px}.speech-bubble .jp{font-size:25px;font-family:"Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;font-weight:800}.tokens{display:flex;gap:7px;flex-wrap:wrap;margin:12px 0}.token{border:1px solid #6d819b;border-radius:11px;background:#394963;padding:10px 13px;color:#fff;font-size:20px}.token.selected{background:#355c50;border-color:#9ae6c1}.gloss{padding:14px;border-radius:13px;background:#253b3c;border:1px solid #477369;min-height:60px}.gloss strong{font-size:19px}.metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.metric{background:#25324a;border:1px solid #43516c;padding:17px;border-radius:15px}.metric strong{font-size:25px;color:var(--mint);display:block}.metric span{color:var(--muted);font-size:11px}.note{border:1px solid #545978;background:#312f42;padding:13px;border-radius:13px;color:#e1ddea;font-size:12px;line-height:1.6}.file-upload{display:block;position:relative;overflow:hidden}.file-upload input{position:absolute;opacity:0;inset:0;width:100%;cursor:pointer}.pill-list{display:flex;gap:8px;flex-wrap:wrap}.pill{font-size:12px;background:#314059;border:1px solid #536785;border-radius:30px;padding:7px 11px}.toast{position:fixed;bottom:calc(86px + env(safe-area-inset-bottom));left:50%;transform:translateX(-50%) translateY(20px);width:max-content;max-width:calc(100vw - 35px);background:#f4f6ed;color:#193d32;border-radius:13px;padding:12px 18px;box-shadow:0 15px 40px #0006;z-index:25;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;text-align:center;font-size:13px;font-weight:800}.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}.divider{height:1px;background:#44516a;margin:15px 0}.num{font-variant-numeric:tabular-nums}.finish{font-size:65px;text-align:center;margin:20px 0}.pill-green{border:1px solid #548c74;background:#224a3b;color:#bff1d9}.empty-state{text-align:center;padding:30px 10px}.empty-state .emoji{font-size:54px;margin-bottom:13px}.quick-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.quick{background:#28354e;border:1px solid #4b5c78;border-radius:15px;padding:16px;text-align:left;color:#fff;min-height:113px}.quick span{display:block;font-size:25px;margin-bottom:10px}.quick strong{font-size:14px}.quick small{display:block;color:var(--muted);font-size:11px;margin-top:5px}.completion-kana{display:flex;justify-content:center;gap:6px;flex-wrap:wrap}.completion-kana span{background:#394963;font-size:25px;border-radius:11px;padding:7px 11px}.offline-indicator{font-size:10px;color:#90d7b2}.tiny{font-size:11px}.paragraph{font-size:13px;line-height:1.6;color:#ccd6e4}.a11y-only{position:absolute!important;clip:rect(1px,1px,1px,1px);clip-path:inset(50%);width:1px;height:1px;overflow:hidden;white-space:nowrap}
@media (min-width:560px){.app{box-shadow:0 0 85px #0005}.footer-nav{left:50%;right:auto;width:540px;transform:translateX(-50%)}}@media(max-width:355px){.app{padding-left:11px;padding-right:11px}.hero h1{font-size:28px}.fox-face{width:70px;height:70px}.nav-item{font-size:9px}.choice{min-height:90px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}