:root{--bg:#fffafc;--surface:#fff;--ink:#3a2e3f;--muted:#8a7d90;--line:#f1e4ec;--track:#f4e8ef;--blush:#f7b8cf;--blush-deep:#e8789f;--lavender:#d9cdf7;--lavender-deep:#9b86e0;--accent:var(--blush-deep);--good:#4fb98a;--good-bg:#e3f7ec;--close:#d99a2b;--close-bg:#fff3dc;--bad:#e0607e;--bad-bg:#ffe6ec;--radius:20px;--radius-sm:14px;--shadow:0 6px 20px #965a821a;--font:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Hiragino Sans", "Noto Sans JP", "Yu Gothic", sans-serif;--font-jp:"Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;margin:0}body{min-height:100dvh}#root{max-width:480px;min-height:100dvh;margin:0 auto;position:relative}h1{letter-spacing:-.01em;margin:0;font-size:1.6rem}h2,h3,p{margin:0}button{font:inherit;color:inherit;cursor:pointer}button:disabled{cursor:default}input,textarea{font:inherit;color:var(--ink);border:2px solid var(--line);background:var(--surface);border-radius:var(--radius-sm);outline:none;width:100%;padding:14px 16px;font-size:1.05rem;transition:border-color .15s}input:focus,textarea:focus{border-color:var(--lavender-deep)}textarea{resize:none}.jp{font-family:var(--font-jp)}.muted{color:var(--muted)}.small{font-size:.9rem}.tiny{font-size:.78rem}.block{display:block}.left{text-align:left}.center-text{text-align:center}.grow{flex:1}.row{align-items:center;display:flex}.gap{gap:10px}.stack{flex-direction:column;gap:12px;display:flex}.stack.tight{gap:8px}.center-row{justify-content:center}.screen{padding:max(20px, env(safe-area-inset-top)) 18px calc(96px + env(safe-area-inset-bottom));flex-direction:column;gap:16px;min-height:100dvh;display:flex}.screen.center{text-align:center;justify-content:center;align-items:center}.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--line);padding:16px}.btn{border-radius:var(--radius-sm);border:none;min-height:52px;padding:14px 18px;font-size:1rem;font-weight:700;transition:transform 80ms,box-shadow .15s,background .15s}.btn:active:not(:disabled){transform:translateY(2px)}.btn:disabled{opacity:.5}.btn-primary{background:linear-gradient(180deg, #f28fb2, var(--blush-deep));color:#fff;box-shadow:0 4px #c95c82}.btn-primary:active:not(:disabled){box-shadow:0 2px #c95c82}.btn-soft{background:var(--lavender);color:#4a3a86;box-shadow:0 4px #b7a7ea}.btn-ghost{background:var(--surface);border:2px solid var(--line);color:var(--ink)}.btn-ghost.danger{color:var(--bad)}.btn-xl{border-radius:18px;min-height:60px;font-size:1.15rem}.btn-google{border:2px solid var(--line);background:#fff;justify-content:center;align-items:center;gap:10px;display:flex}.g-dot{background:conic-gradient(#ea4335 0 25%, #fbbc05 0 50%, #34a853 0 75%, #4285f4 0);color:#fff;border-radius:50%;place-items:center;width:26px;height:26px;font-size:.85rem;font-weight:800;display:inline-grid}.wide{width:100%}.link{color:var(--lavender-deep);background:0 0;border:none;padding:6px;font-weight:600}.icon-btn{background:var(--surface);width:44px;height:44px;box-shadow:var(--shadow);color:var(--muted);border:none;border-radius:50%;flex:none;place-items:center;font-size:1.3rem;display:grid}.logo-bubble{width:84px;height:84px;font-size:2.6rem;font-family:var(--font-jp);color:#fff;background:linear-gradient(135deg, var(--blush), var(--lavender-deep));border-radius:28px;place-items:center;display:grid;box-shadow:0 10px 30px #9b86e059}.login{justify-content:center}.login-hero{text-align:center;flex-direction:column;align-items:center;gap:10px;margin-bottom:6px;display:flex}.divider{color:var(--muted);align-items:center;gap:10px;font-size:.85rem;display:flex}.divider:before,.divider:after{content:"";background:var(--line);flex:1;height:1px}.note{background:var(--lavender);color:#4a3a86;text-align:center;border-radius:12px;padding:10px 14px}.onboarding{justify-content:center}.dots{justify-content:center;gap:6px;display:flex}.dot{background:var(--line);border-radius:50%;width:8px;height:8px;transition:width .2s}.dot.on{background:var(--blush-deep);border-radius:6px;width:22px}.option{text-align:left;border-radius:var(--radius-sm);border:2px solid var(--line);background:var(--surface);flex-direction:column;align-items:flex-start;gap:2px;min-height:60px;padding:14px 16px;transition:border-color .15s,background .15s;display:flex}.option.selected{border-color:var(--blush-deep);background:#fff1f6}.deck-option{flex-direction:row;align-items:center;gap:12px}.deck-icon{font-size:1.8rem}.check{border:2px solid var(--line);color:#fff;border-radius:50%;flex:none;place-items:center;width:28px;height:28px;font-weight:800;display:grid}.selected .check{background:var(--blush-deep);border-color:var(--blush-deep)}.home-top{justify-content:space-between;align-items:center;display:flex}.hello{font-size:1.5rem}.stats{grid-template-columns:1fr 1fr;gap:8px;display:grid}.stat{align-items:center;gap:10px;display:flex}.big-num{font-size:1.6rem;line-height:1}.flame{filter:grayscale()opacity(.45);font-size:2.2rem;transition:filter .3s}.flame.lit{filter:none;animation:1.8s ease-in-out infinite flicker}.freeze-line{margin-top:-8px;padding-left:4px}.ring{flex:none;position:relative}.ring-label{place-items:center;display:grid;position:absolute;inset:0}.ring-num{font-weight:800}.rescue{text-align:left;background:linear-gradient(135deg,#fff,#f6f1ff);align-items:center;gap:12px;display:flex}.rescue-icon{font-size:1.8rem}.chev{color:var(--muted);font-size:1.6rem}.kana-card{flex-direction:column;gap:8px;display:flex}.kana-bars{flex-direction:column;gap:6px;display:flex}.kana-bar{grid-template-columns:70px 1fr 48px;align-items:center;gap:10px;display:grid}.kana-bar .small:last-child{text-align:right}.bar{background:var(--track);border-radius:99px;height:12px;overflow:hidden}.bar-fill{background:linear-gradient(90deg, var(--blush), var(--lavender-deep));border-radius:99px;height:100%;transition:width .4s}.section-title{margin-top:4px;font-size:1.1rem}.path{flex-direction:column;align-items:center;gap:18px;padding:6px 0 20px;display:flex;position:relative}.path:before{content:"";border-left:4px dotted var(--lavender);position:absolute;top:40px;bottom:60px;left:50%}.island{background:0 0;border:none;flex-direction:column;align-items:center;gap:4px;max-width:200px;padding:0;display:flex;position:relative}.island .ring{background:var(--surface);box-shadow:0 6px 0 var(--lavender), var(--shadow);border-radius:50%;transition:transform .12s}.island:active .ring{transform:translateY(4px)}.island-0{transform:translate(-60px)}.island-1{transform:translate(10px)}.island-2{transform:translate(60px)}.island-icon{font-size:2rem}.island-name{text-align:center;background:var(--bg);border-radius:8px;padding:0 6px;font-size:.9rem;font-weight:700}.lesson{padding-bottom:24px}.lesson-top{align-items:center;gap:12px;padding-right:50px;display:flex}.lesson-bar{flex:1;height:14px}.pill{background:var(--lavender);color:#4a3a86;border-radius:99px;align-self:center;padding:4px 12px;font-size:.8rem;font-weight:600}.exercise{flex-direction:column;flex:1;gap:16px;display:flex}.prompt-label{font-size:1.15rem;font-weight:700}.prompt-card{background:var(--surface);box-shadow:var(--shadow);border:1px solid var(--line);text-align:center;border-radius:24px;flex-direction:column;justify-content:center;align-items:center;gap:8px;min-height:170px;padding:22px 16px;display:flex}.prompt-card.compact{min-height:0;padding:14px}.prompt-jp{word-break:keep-all;font-size:2.6rem;font-weight:700;line-height:1.2}.prompt-jp-sm{font-size:1.8rem;font-weight:700}.prompt-kana{color:var(--muted);font-size:1.05rem}.prompt-img{object-fit:cover;background:var(--track);border-radius:18px;width:150px;height:150px}.prompt-en{font-size:1.05rem;font-weight:600}.prompt-en.big{font-size:1.4rem}.badge{background:var(--track);color:var(--muted);border-radius:99px;padding:2px 10px;font-size:.75rem}.listen{flex-direction:column;align-items:center;gap:8px;display:flex}.speaker{background:var(--lavender);color:#4a3a86;border:none;border-radius:50%;flex:none;place-items:center;width:40px;height:40px;display:grid}.speaker-big{width:96px;height:96px;box-shadow:0 6px #b7a7ea}.speaker-big:active{transform:translateY(3px);box-shadow:0 3px #b7a7ea}.answer{flex-direction:column;gap:12px;display:flex}.answer-input{text-align:center;padding:16px;font-size:1.3rem}.choices{grid-template-columns:1fr 1fr;gap:10px;display:grid}.choice{border-radius:var(--radius-sm);border:2px solid var(--line);background:var(--surface);min-height:64px;box-shadow:0 3px 0 var(--line);padding:8px;font-size:1.05rem;font-weight:600}.choice.right,.pic-option.right{border-color:var(--good);background:var(--good-bg);animation:.3s pop}.choice.wrong,.pic-option.wrong{border-color:var(--bad);background:var(--bad-bg);animation:.35s shake}.choice.dim,.pic-option.dim{opacity:.45}.pic-grid{grid-template-columns:1fr 1fr;gap:12px;display:grid}.pic-option{aspect-ratio:1;border:3px solid var(--line);background:var(--surface);box-shadow:0 4px 0 var(--line);border-radius:18px;padding:6px;overflow:hidden}.pic-option img{object-fit:cover;border-radius:12px;width:100%;height:100%;display:block}.feedback{max-width:480px;padding:16px 18px calc(18px + env(safe-area-inset-bottom));z-index:20;border-radius:24px 24px 0 0;flex-direction:column;gap:10px;margin:0 auto;display:flex;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -8px 30px #783c641f}.feedback-good{background:var(--good-bg);color:#1f6b4b}.feedback-close{background:var(--close-bg);color:#8a5a07}.feedback-bad{background:var(--bad-bg);color:#9b2945}.feedback-head{align-items:center;gap:10px;display:flex}.feedback-icon{color:#fff;border-radius:50%;flex:none;place-items:center;width:34px;height:34px;font-weight:900;animation:.35s pop;display:grid}.feedback-good .feedback-icon{background:var(--good)}.feedback-close .feedback-icon{background:var(--close)}.feedback-bad .feedback-icon{background:var(--bad)}.feedback-title{flex:1;font-size:1.2rem}.answer-block{color:var(--ink);background:#ffffffa6;border-radius:14px;flex-direction:column;gap:2px;padding:10px 14px;display:flex}.ab-jp{font-size:1.4rem;font-weight:700}.ab-kana{color:var(--muted)}.ab-romaji{color:#4a3a86;font-weight:700}.ab-en{font-size:.95rem}.answer-block .link{align-self:flex-start;padding:2px 0}.you-typed{color:var(--muted);margin-top:4px}.btn-continue{color:#fff;min-height:54px}.feedback-good .btn-continue{background:var(--good);box-shadow:0 4px #3a9670}.feedback-close .btn-continue{background:var(--close);box-shadow:0 4px #b47c1b}.feedback-bad .btn-continue{background:var(--bad);box-shadow:0 4px #b84461}.end{justify-content:center;align-items:stretch}.end-emoji{text-align:center;font-size:4rem}.end-stats{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.end-stat{text-align:center;border:2px solid;border-radius:18px;flex-direction:column;gap:4px;padding:14px 6px;animation:.5s both rise;display:flex}.end-stat strong{font-size:1.5rem}.end-stat span{font-size:.75rem;font-weight:600}.end-stat.xp{color:#9a6a00;background:#fff7e3;border-color:#f6c35b}.end-stat.acc{border-color:var(--good);background:var(--good-bg);color:#1f6b4b;animation-delay:.1s}.end-stat.str{border-color:var(--lavender-deep);color:#4a3a86;background:#f3efff;animation-delay:.2s}.settings-top h1{font-size:1.4rem}.field{flex-direction:column;gap:6px;display:flex}.field>span,.field-label{font-size:.95rem;font-weight:700}.seg{background:var(--track);border-radius:16px;grid-auto-columns:1fr;grid-auto-flow:column;gap:6px;padding:4px;display:grid}.seg button{background:0 0;border:none;border-radius:12px;min-height:52px;padding:10px 4px;font-weight:700}.seg button.on{background:var(--surface);box-shadow:var(--shadow);color:var(--blush-deep)}.stepper{align-items:center;gap:16px;display:flex}.stepper button{border:2px solid var(--line);background:var(--surface);border-radius:50%;width:48px;height:48px;font-size:1.4rem;font-weight:700}.stepper strong{text-align:center;min-width:32px;font-size:1.3rem}.toggle-row{justify-content:space-between;align-items:center;gap:12px;min-height:44px;display:flex}.toggle{appearance:none;background:var(--track);cursor:pointer;border:none;border-radius:99px;flex:none;width:52px;height:30px;padding:0;transition:background .2s;position:relative}.toggle:after{content:"";background:#fff;border-radius:50%;width:24px;height:24px;transition:transform .2s;position:absolute;top:3px;left:3px;box-shadow:0 2px 4px #00000026}.toggle:checked{background:var(--blush-deep)}.toggle:checked:after{transform:translate(22px)}.fab{background:var(--surface);width:48px;height:48px;box-shadow:var(--shadow), 0 0 0 1px var(--line);z-index:15;border:none;border-radius:50%;font-size:1.3rem;position:fixed;right:max(16px,50% - 224px)}.fab-bottom{bottom:calc(18px + env(safe-area-inset-bottom))}.fab-top{top:max(18px, env(safe-area-inset-top));width:42px;height:42px;font-size:1.1rem}.sheet-backdrop{z-index:50;background:#3a2e3f59;justify-content:center;align-items:flex-end;animation:.2s fade;display:flex;position:fixed;inset:0}.sheet{background:var(--surface);width:100%;max-width:480px;padding:10px 18px calc(20px + env(safe-area-inset-bottom));border-radius:24px 24px 0 0;flex-direction:column;gap:12px;animation:.25s slideUp;display:flex}.sheet-handle{background:var(--line);border-radius:9px;align-self:center;width:40px;height:5px}.sheet-thanks{text-align:center;padding:24px 0;font-weight:700}.pop-in{animation:.5s pop}.slide-in{animation:.28s both slideIn}.slide-up{animation:.25s both slideUp}@keyframes pop{0%{opacity:0;transform:scale(.6)}60%{opacity:1;transform:scale(1.12)}to{transform:scale(1)}}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-6px)}75%{transform:translate(6px)}}@keyframes slideIn{0%{opacity:0;transform:translate(24px)}to{opacity:1;transform:none}}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:none}}@keyframes rise{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}@keyframes fade{0%{opacity:0}}@keyframes flicker{0%,to{transform:scale(1)rotate(0)}50%{transform:scale(1.08)rotate(-3deg)}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important;animation:none!important}}.new-tag{background:var(--blush-deep);color:#fff;vertical-align:middle;border-radius:99px;margin-right:6px;padding:3px 10px;font-size:.75rem;display:inline-block}.intro .prompt-img{width:128px;height:128px}.intro-romaji{color:#4a3a86;font-size:1.3rem;font-weight:800}.nowrap{white-space:nowrap}.stats{grid-template-columns:auto auto;justify-content:space-between;padding:16px 18px}