:root{--bg:#fffafc;--surface:#fff;--surface-2:#fff5f9;--ink:#3a2e3f;--muted:#74687a;--line:#fbe6ee;--track:#fcebf1;--primary:#e8789f;--primary-top:#ea86a9;--primary-deep:#bf6385;--on-primary:#17121a;--primary-ink:#b2557a;--primary-soft:#fdf1f5;--accent:#9b86e0;--accent-deep:#8170b8;--on-accent:#17121a;--accent-ink:#7259c7;--accent-soft:#ece7f9;--accent-soft-deep:#cdc3f0;--on-accent-soft:#4a3a86;--good:#3fae7d;--good-deep:#366e56;--on-good:#17121a;--good-bg:#e2f3eb;--good-ink:#1f5a40;--close:#d99a2b;--close-deep:#a97a28;--on-close:#17121a;--close-bg:#faf0df;--close-ink:#6e4c12;--bad:#e0607e;--bad-deep:#b0516a;--on-bad:#17121a;--bad-bg:#fbe7ec;--bad-ink:#7a2c3f;--bad-text:#c23e5f;--pop:#f6c35b;--pop-bg:#fef5e5;--pop-ink:#6e5420;--on-mid:#17121a;--shadow-color:#965a821f;--backdrop:#3a2e3f59;--glass:#ffffffb3;--primary-line:#d4648b;--accent-line:#9b86e0;--knob:#fff;--shadow:0 6px 20px var(--shadow-color);--radius:20px;--radius-sm:14px;--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{touch-action:manipulation;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(--accent)}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, var(--primary-top), var(--primary));color:var(--on-primary);box-shadow:0 4px 0 var(--primary-deep)}.btn-primary:active:not(:disabled){box-shadow:0 2px 0 var(--primary-deep)}.btn-soft{background:var(--accent-soft);color:var(--on-accent-soft);box-shadow:0 4px 0 var(--accent-soft-deep)}.btn-ghost{background:var(--surface);border:2px solid var(--line);color:var(--ink)}.btn-ghost.danger{color:var(--bad-text)}.btn-xl{border-radius:18px;min-height:60px;font-size:1.15rem}.btn-google{background:var(--surface);border:2px solid var(--line);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(--accent-ink);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:var(--on-mid);background:linear-gradient(135deg, var(--primary), var(--accent));box-shadow:0 10px 30px var(--shadow-color);border-radius:28px;place-items:center;display:grid}.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(--accent-soft);color:var(--on-accent-soft);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(--primary-line);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(--primary-line);background:var(--primary-soft)}.deck-option{flex-direction:row;align-items:center;gap:12px}.deck-icon{font-size:1.8rem}.check{border:2px solid var(--line);width:28px;height:28px;color:var(--on-primary);border-radius:50%;flex:none;place-items:center;font-weight:800;display:grid}.selected .check{background:var(--primary);border-color:var(--primary)}.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, var(--surface), var(--surface-2));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(--primary-line), var(--accent-line));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(--accent-soft-deep);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(--accent-soft-deep), 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(--accent-soft);color:var(--on-accent-soft);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(--accent-soft);color:var(--on-accent-soft);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 0 var(--accent-soft-deep)}.speaker-big:active{box-shadow:0 3px 0 var(--accent-soft-deep);transform:translateY(3px)}.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;box-shadow:0 -8px 30px var(--shadow-color);border-radius:24px 24px 0 0;flex-direction:column;gap:10px;margin:0 auto;display:flex;position:fixed;bottom:0;left:0;right:0}.feedback-good{background:var(--good-bg);color:var(--good-ink)}.feedback-close{background:var(--close-bg);color:var(--close-ink)}.feedback-bad{background:var(--bad-bg);color:var(--bad-ink)}.feedback-head{align-items:center;gap:10px;display:flex}.feedback-icon{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);color:var(--on-good)}.feedback-close .feedback-icon{background:var(--close);color:var(--on-close)}.feedback-bad .feedback-icon{background:var(--bad);color:var(--on-bad)}.feedback-title{flex:1;font-size:1.2rem}.answer-block{background:var(--glass);color:var(--ink);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:var(--accent-ink);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{min-height:54px}.feedback-good .btn-continue{background:var(--good);color:var(--on-good);box-shadow:0 4px 0 var(--good-deep)}.feedback-close .btn-continue{background:var(--close);color:var(--on-close);box-shadow:0 4px 0 var(--close-deep)}.feedback-bad .btn-continue{background:var(--bad);color:var(--on-bad);box-shadow:0 4px 0 var(--bad-deep)}.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{border-color:var(--pop);background:var(--pop-bg);color:var(--pop-ink)}.end-stat.acc{border-color:var(--good);background:var(--good-bg);color:var(--good-ink);animation-delay:.1s}.end-stat.str{border-color:var(--accent);background:var(--accent-soft);color:var(--on-accent-soft);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(--primary-ink)}.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:var(--knob);width:24px;height:24px;box-shadow:0 2px 4px var(--shadow-color);border-radius:50%;transition:transform .2s;position:absolute;top:3px;left:3px}.toggle:checked{background:var(--primary)}.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{background:var(--backdrop);z-index:50;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(--primary);color:var(--on-primary);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:var(--accent-ink);font-size:1.3rem;font-weight:800}.nowrap{white-space:nowrap}.stats{grid-template-columns:auto auto;justify-content:space-between;padding:16px 18px}.center-self{align-self:center}.btn-sm{min-height:42px;padding:8px 14px;font-size:.92rem}.screen.with-tabs{padding-bottom:calc(150px + env(safe-area-inset-bottom))}.tabbar{background:var(--surface);border-top:1px solid var(--line);max-width:480px;padding:6px 6px calc(6px + env(safe-area-inset-bottom));z-index:14;box-shadow:0 -6px 20px var(--shadow-color);grid-template-columns:repeat(4,1fr);margin:0 auto;display:grid;position:fixed;bottom:0;left:0;right:0}.tab{min-height:52px;color:var(--muted);background:0 0;border:none;border-radius:14px;flex-direction:column;align-items:center;gap:2px;padding:6px 0;font-size:.75rem;font-weight:700;display:flex}.tab.on{color:var(--primary-ink);background:var(--primary-soft)}.tab-icon{place-items:center;height:24px;display:grid;position:relative}.tab-glyph{font-size:1.25rem;font-weight:800;line-height:1}.tab-badge{background:var(--primary);border:2px solid var(--surface);border-radius:50%;width:9px;height:9px;position:absolute;top:-2px;right:-6px}.fab-tabs{bottom:calc(82px + env(safe-area-inset-bottom));width:44px;height:44px;font-size:1.15rem}.onboarding.tall{justify-content:flex-start;padding-bottom:24px}.sticky-actions{padding:12px 0 calc(12px + env(safe-area-inset-bottom));background:linear-gradient(180deg, transparent, var(--bg) 22%);z-index:3;margin:0 -18px;padding-left:18px;padding-right:18px;position:sticky;bottom:0}.counter{text-align:center;color:var(--muted);font-weight:700}.counter.done{color:var(--good-ink)}.mode-option{flex-direction:row;align-items:center;gap:12px}.mode-icon{text-align:center;min-width:44px;font-size:1.4rem}.rec-tag{vertical-align:2px;background:var(--accent-soft);color:var(--on-accent-soft);border-radius:99px;margin-left:8px;padding:2px 8px;font-size:.68rem;display:inline-block}.theme-live{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);align-items:center;gap:14px;padding:12px;display:flex}.theme-live-text{flex-direction:column;gap:2px;display:flex}.swatch-grid{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.swatch{border:2px solid var(--line);background:var(--surface);border-radius:16px;flex-direction:column;align-items:stretch;gap:6px;padding:6px 6px 8px;transition:border-color .15s,transform .1s;display:flex}.swatch.on{border-color:var(--primary-line);box-shadow:0 0 0 2px var(--primary-soft)}.swatch:active{transform:scale(.97)}.swatch-name{text-align:center;place-items:center;min-height:2.3em;font-size:.74rem;font-weight:700;line-height:1.15;display:grid}.theme-preview{background:var(--bg);border:1px solid var(--line);color:var(--ink);border-radius:11px;flex-direction:column;gap:5px;padding:7px;display:flex}.tp-card{background:var(--surface);border:1px solid var(--line);border-radius:8px;flex-direction:column;gap:4px;padding:5px 6px;display:flex}.tp-jp{color:var(--ink);font-size:.72rem;font-weight:800}.tp-sub{color:var(--muted);font-size:.66rem}.tp-bar{background:var(--track);border-radius:9px;height:5px;overflow:hidden}.tp-bar-fill{background:linear-gradient(90deg, var(--primary-line), var(--accent-line));border-radius:9px;width:62%;height:100%}.tp-row{align-items:center;gap:5px;display:flex}.tp-btn{background:var(--primary-line);height:13px;color:var(--on-primary);box-shadow:0 2px 0 var(--primary-deep);border-radius:6px;flex:1;place-items:center;font-size:.6rem;font-weight:800;display:grid}.tp-dot{background:var(--accent);border-radius:50%;width:13px;height:13px}.theme-preview.big{flex:none;gap:7px;width:128px;padding:9px}.theme-preview.big .tp-jp{font-size:1rem}.theme-preview.big .tp-btn{border-radius:8px;height:24px;font-size:.72rem}.theme-preview.big .tp-dot{width:24px;height:24px}.custom-toggle{min-height:0}.custom-colors{flex-direction:column;gap:8px;display:flex}.color-row{background:var(--surface);border:2px solid var(--line);border-radius:var(--radius-sm);align-items:center;gap:12px;padding:8px 12px;display:flex}.color-row input[type=color]{border:2px solid var(--line);cursor:pointer;background:0 0;border-radius:12px;flex:none;width:48px;height:48px;padding:0}.color-row input[type=color]::-webkit-color-swatch-wrapper{padding:3px}.color-row input[type=color]::-webkit-color-swatch{border:none;border-radius:8px}.topic-grid{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.topic{text-align:center;background:0 0;border:none;flex-direction:column;gap:5px;padding:0;display:flex}.topic-img{aspect-ratio:1;background:var(--track);box-shadow:var(--shadow);border:3px solid #0000;border-radius:16px;transition:border-color .15s,transform .12s;display:block;position:relative;overflow:hidden}.topic-img img,.topic-fallback{object-fit:cover;color:#281e32bf;place-items:center;width:100%;height:100%;font-size:2.4rem;display:grid}.topic.on .topic-img{border-color:var(--primary-line);transform:scale(.96)}.topic:active .topic-img{transform:scale(.94)}.topic-check{border:2px solid var(--knob);width:26px;height:26px;color:var(--on-primary);background:#0000002e;border-radius:50%;place-items:center;font-size:.9rem;font-weight:900;display:grid;position:absolute;top:6px;right:6px}.topic.on .topic-check{background:var(--primary);border-color:var(--primary);animation:.3s pop}.ribbon{background:var(--glass);color:var(--ink);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);letter-spacing:.02em;padding:3px 0;font-size:.66rem;font-weight:800;position:absolute;bottom:0;left:0;right:0}.topic-name{font-size:.76rem;font-weight:700;line-height:1.15}.buddy-card,.kana-card{text-align:left;align-items:center;gap:12px;width:100%;display:flex}.kana-card{flex-direction:column;align-items:stretch}.kana-bar .bar,.kana-bar .bar-fill{display:block}.avatars{display:flex}.avatars .avatar+.avatar{margin-left:-10px}.avatar{background:linear-gradient(135deg, var(--primary), var(--accent));width:42px;height:42px;color:var(--on-mid);border:2px solid 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var(--line);background:var(--surface-2);border-radius:12px;width:44px;height:44px;font-size:1.35rem;font-weight:700}.timer-bar .bar-fill{transition:width .5s linear}.timer{font-variant-numeric:tabular-nums;color:var(--muted);min-width:36px;font-weight:700}.kana-practice .lesson-top{padding-right:50px}.kana-huge{font-size:5rem;font-weight:700;line-height:1.1}.kana-prompt{transition:background .2s,border-color .2s;position:relative}.kana-prompt.right{background:var(--good-bg);border-color:var(--good)}.kana-prompt.wrong{background:var(--bad-bg);border-color:var(--bad)}.kana-prompt .new-tag{position:absolute;top:12px;left:12px}.kana-answer{font-size:1.2rem;font-weight:800}.kana-answer.right{color:var(--good-ink)}.kana-answer.wrong{color:var(--bad-ink)}.kana-choices .choice{min-height:76px;font-size:1.8rem}.match-board{grid-template-columns:1fr 1fr;gap:12px;display:grid}.match-col{flex-direction:column;gap:10px;display:flex}.match-tile{border:2px solid var(--line);background:var(--surface);min-height:58px;box-shadow:0 3px 0 var(--line);border-radius:14px;font-size:1.15rem;font-weight:700;transition:opacity .25s,transform .1s}.match-tile.jp{font-size:1.6rem}.match-tile.sel{border-color:var(--primary-line);background:var(--primary-soft);transform:translateY(-2px)}.match-tile.bad{border-color:var(--bad);background:var(--bad-bg);animation:.35s shake}.match-tile.done{opacity:.25;border-color:var(--good);background:var(--good-bg)}.kana-recap{flex-wrap:wrap;justify-content:center;gap:6px;display:flex}.recap-chip{border-radius:10px;flex-direction:column;align-items:center;min-width:44px;padding:4px 6px;font-weight:700;display:flex}.recap-chip.good{background:var(--good-bg);color:var(--good-ink)}.recap-chip.mid{background:var(--close-bg);color:var(--close-ink)}.recap-chip.bad{background:var(--bad-bg);color:var(--bad-ink)}.buddy-pop{background:var(--pop-bg);color:var(--pop-ink);border:2px solid 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.prompt-en.big{font-size:1.3rem;line-height:1.35}.grammar-tag{background:var(--accent-soft);color:var(--on-accent-soft);border-radius:99px;align-self:flex-start;margin:0 0 -6px;padding:3px 10px;font-weight:700}.hint-line{background:var(--pop-bg);color:var(--pop-ink);border-radius:12px;margin:0;padding:8px 12px;line-height:1.5}.hint-line .muted{color:inherit;opacity:.8}.build-line{border-bottom:2px dashed var(--accent-soft-deep);flex-wrap:wrap;align-items:center;gap:8px;min-height:62px;padding:10px 4px 12px;display:flex}.build-line.empty{justify-content:center}.chip-bank{flex-wrap:wrap;justify-content:center;gap:8px;padding:6px 0;display:flex}.chip{border:2px solid var(--line);background:var(--surface);color:var(--ink);min-height:46px;box-shadow:0 3px 0 var(--line);white-space:normal;word-break:keep-all;border-radius:12px;max-width:100%;padding:8px 12px;font-size:1.15rem;font-weight:600}.chip:active:not(:disabled){box-shadow:0 1px 0 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.gs-icon{background:var(--good);color:var(--on-good)}.gs-text{flex-direction:column;flex:1;min-width:0;display:flex}.gs-title{font-size:.95rem;font-weight:800;line-height:1.25}.gs-sub{opacity:.85}.gs-level{border-radius:8px;flex:none;padding:2px 6px;font-size:.7rem;font-weight:800}.section-chips{scrollbar-width:none;gap:8px;margin:0 -18px;padding:2px 18px 6px;display:flex;overflow-x:auto}.section-chips::-webkit-scrollbar{display:none}.section-chip{border:2px solid var(--line);background:var(--surface);color:var(--ink);border-radius:99px;flex:none;align-items:center;gap:6px;min-height:44px;padding:8px 14px;font-weight:700;display:flex}.section-chip.on{background:var(--primary);border-color:var(--primary);color:var(--on-primary)}.sc-icon{font-size:1.05rem}.kana-screen.embedded{gap:16px}.seg-4 button{padding:8px 2px;font-size:.9rem}.form-group{flex-direction:column;gap:4px;display:flex}.check-row{border-bottom:1px solid var(--line);align-items:center;gap:10px;padding:8px 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16px;display:flex;position:fixed}.deck-action{text-align:left;min-height:64px}.deck-action .tiny{opacity:.9;margin-top:2px;font-weight:500}.no-margin{margin:0}.grammar-row.locked{opacity:.7}.grammar-row .gs-level{text-align:center;min-width:34px}.browse .lesson-top{padding-right:50px}.word-list{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.word-row{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);align-items:center;gap:12px;padding:8px 10px;display:flex}.word-thumb{object-fit:cover;background:var(--track);border-radius:12px;flex:none;place-items:center;width:56px;height:56px;font-size:1.6rem;display:grid}.word-main{flex-direction:column;min-width:0;display:flex}.word-jp{font-size:1.15rem;font-weight:700;line-height:1.25}.word-romaji{color:var(--accent-ink);font-weight:700}.word-en{color:var(--muted);overflow-wrap:anywhere}.word-side{flex-direction:column;flex:none;align-items:flex-end;gap:6px;display:flex}.word-side .tier-chip{white-space:nowrap;align-self:flex-end}.drill-card{min-height:150px}.deck-bar .bar-fill,.acc-bar .bar-fill{height:100%;display:block}.acc-bar{display:block}.grammar-examples{padding-bottom:90px}.grammar-examples .sticky-actions{max-width:480px;margin:0 auto;position:fixed;bottom:0;left:0;right:0}.select-bar{padding-right:84px}.path:before,.path.single:before{display:none}.path-connector{pointer-events:none;z-index:0;position:absolute;top:0;left:0;overflow:visible}.path-connector path{fill:none;stroke-linecap:round;stroke-width:4px}.path-connector .pc-todo{stroke:var(--accent-soft-deep);stroke-dasharray:.5 10;stroke-width:5px;opacity:.9}.path-connector .pc-done{stroke:var(--accent-line);stroke-dasharray:10 8;opacity:.85}.island{z-index:1}.island-name,.island-sub{position:relative}.sound-list{flex-direction:column;gap:10px;display:flex}.sound-card{background:var(--surface);border:2px solid var(--line);border-radius:var(--radius-sm);box-shadow:0 2px 0 var(--line);align-items:center;gap:8px;padding:4px 10px 4px 4px;display:flex}.sound-card.on{border-color:var(--primary-line);background:var(--primary-soft)}.sound-pick{text-align:left;color:var(--ink);background:0 0;border:none;flex:1;align-items:center;gap:12px;min-width:0;padding:10px 6px;display:flex}.sound-emoji{flex:none;font-size:1.7rem}.pair-tag{background:var(--accent-soft);color:var(--on-accent-soft);border-radius:99px;margin-top:4px;padding:2px 9px;font-weight:700;display:inline-block}.radio-dot{border:2px solid var(--line);border-radius:50%;flex:none;width:22px;height:22px}.radio-dot.on{border:7px solid var(--primary)}.sound-preview{flex:none}.volume-row{align-items:center;gap:12px;display:flex}.volume-row input[type=range]{accent-color:var(--primary);flex:1;min-height:32px}.confetti{pointer-events:none;z-index:40;position:fixed;inset:0;overflow:hidden}.confetti-bit,.confetti-star{opacity:0;border-radius:2px;width:8px;height:12px;animation:linear forwards confetti-fall;position:absolute;top:-12px}.confetti-star{width:auto;height:auto;font-size:18px;line-height:1}@keyframes confetti-fall{0%{opacity:1;transform:translate(0)rotate(0)}to{opacity:0;transform:translate(var(--drift), 70vh) rotate(var(--rot))}}.feedback-good .feedback-icon{animation:.45s cubic-bezier(.3,1.6,.5,1) bounce-in}@keyframes bounce-in{0%{transform:scale(.3)}60%{transform:scale(1.25)}to{transform:scale(1)}}@media (prefers-reduced-motion:reduce){.confetti{display:none}.feedback-good .feedback-icon{animation:none}}.island-sub,.island-kanji{background:var(--bg);border-radius:8px;padding:0 6px}.island-kanji{padding:2px 4px}.slow-hint{color:var(--muted);text-align:center;margin:6px 0 0;font-size:12.5px;display:block}.char-sheet .slow-hint{text-align:right;margin:-4px 2px 10px}.lang-switch{z-index:20;padding:max(10px, env(safe-area-inset-top)) 18px 8px;background:var(--bg);gap:6px;display:flex;position:sticky;top:0}.lang-tab{border:2px solid var(--line);background:var(--surface);color:var(--muted);border-radius:99px;flex:1;min-height:42px;padding:8px 10px;font-size:.92rem;font-weight:700}.lang-tab.on{border-color:var(--accent);background:var(--accent-soft);color:var(--on-accent-soft)}.lang-switch+.screen{padding-top:8px}.es-word{text-align:center;overflow-wrap:anywhere;font-size:2.1rem;font-weight:800;line-height:1.15}.es-word.long{font-size:1.5rem}.es-word.sm{font-size:1.6rem}.es-word.ab{font-size:1.5rem}.es-tags{flex-wrap:wrap;justify-content:center;gap:6px;margin-top:2px;display:flex}.word-row .es-tags{justify-content:flex-start}.es-tip{text-align:center;max-width:34ch}.es-hint{margin:0;font-weight:600}.accent-keys{flex-wrap:wrap;justify-content:center;gap:5px;display:flex}.accent-key{border:2px solid var(--line);background:var(--surface);min-width:34px;min-height:40px;color:var(--ink);box-shadow:0 2px 0 var(--line);border-radius:12px;padding:0 4px;font-size:1.1rem;font-weight:700}.accent-key:active:not(:disabled){transform:translateY(1px)}.stage-badge{background:var(--accent-soft);color:var(--on-accent-soft);vertical-align:2px;border-radius:99px;margin-right:4px;padding:2px 10px;font-size:.8rem;font-weight:800;display:inline-block}.stage-sub{margin:-6px 0 0}.deck-card{flex-direction:column;gap:12px;padding:12px 14px;display:flex}.deck-card.off{opacity:.7}.deck-head{width:100%;color:inherit;text-align:left;background:0 0;border:none;align-items:center;padding:0}.word-list{flex-direction:column;max-height:360px;display:flex;overflow-y:auto}.lang-switch{gap:5px;padding-left:12px;padding-right:12px}.lang-tab{white-space:nowrap;text-overflow:ellipsis;padding:8px 4px;font-size:.84rem;overflow:hidden}.badge-n{background:color-mix(in srgb, var(--accent) 18%, var(--track));color:var(--ink)}.badge-s{background:color-mix(in srgb, #e8a33d 26%, var(--track));color:var(--ink)}.es-aside{text-align:center;color:var(--ink);opacity:.85;display:block}.island-native{text-align:center;display:block}.vi-alpha .chips{flex-wrap:wrap;gap:8px;display:flex}.vi-alpha .chip{min-height:40px;padding:6px 12px;font-size:.92rem}.vi-alpha .chip.on{border-color:var(--accent);background:var(--accent-soft);color:var(--on-accent-soft)}.tone-card{text-align:left;align-items:center;gap:14px;width:100%;display:flex}.tone-ex{text-align:center;min-width:3.2rem;font-size:2rem;font-weight:800}.tone-shape{color:var(--muted);font-size:1.4rem}.letter-grid{grid-template-columns:repeat(auto-fill,minmax(58px,1fr));gap:8px;display:grid}.letter-cell{flex-direction:column;align-items:center;padding:8px 4px;display:flex}.letter-ch{font-size:1.6rem;font-weight:800;line-height:1.1}.letter-inline{text-align:center;min-width:3.4rem;font-size:1.25rem}.row.wrap{flex-wrap:wrap}