@import "https://fonts.googleapis.com/css2?family=Barlow:wght@400;500;600;700&family=Barlow+Semi+Condensed:wght@600;700;800&display=swap";
:root{--paper:#edf0f4;--card:#fff;--ink:#14171c;--muted:#566070;--line:#d3d9e2;--blue:#0b57a4;--blue-deep:#08427f;--yellow:#fc0;--green:#17803d;--red:#c62828;--tint:#e6eff9;--tint-yellow:#fff5c7;--tint-green:#e2f4e8;--tint-red:#fbe5e5;--focus:#0b57a4;--der:#1f6fd0;--die:#d6281f;--das:#1c9a4c;--icon:#0b57a4;--shadow:0 1px 2px #0f1e3c0f, 0 6px 18px #0f1e3c0f;--font-body:"Barlow", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-display:"Barlow Semi Condensed", "Barlow", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif}:root[data-theme=dark]{--paper:#0d1117;--card:#161b23;--ink:#eaeef4;--muted:#9ba6b5;--line:#2a3240;--blue:#2a72c4;--blue-deep:#1f5fa8;--green:#4cc27a;--red:#ff7b7b;--tint:#16283f;--tint-yellow:#3a3210;--tint-green:#14301f;--tint-red:#3a1a1a;--focus:#7db6f5;--der:#7db6f5;--die:#ff8a80;--das:#6fd39a;--icon:#8fc0f5;--shadow:0 1px 2px #0006, 0 6px 18px #0000004d}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--paper:#0d1117;--card:#161b23;--ink:#eaeef4;--muted:#9ba6b5;--line:#2a3240;--blue:#2a72c4;--blue-deep:#1f5fa8;--green:#4cc27a;--red:#ff7b7b;--tint:#16283f;--tint-yellow:#3a3210;--tint-green:#14301f;--tint-red:#3a1a1a;--focus:#7db6f5;--der:#7db6f5;--die:#ff8a80;--das:#6fd39a;--icon:#8fc0f5;--shadow:0 1px 2px #0006, 0 6px 18px #0000004d}}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--paper);color:var(--ink);font-family:var(--font-body);-webkit-font-smoothing:antialiased;margin:0;font-size:1.0625rem;line-height:1.5}h1,h2,h3,h4,p{margin:0}button,input,select{font:inherit;color:inherit}:focus-visible{outline:3px solid var(--focus);outline-offset:2px}.muted{color:var(--muted)}.app{grid-template-columns:310px minmax(0,1fr);min-height:100vh;display:grid}.rail{background:var(--card);border-right:1px solid var(--line);flex-direction:column;gap:22px;height:100vh;padding:24px 20px 20px;display:flex;position:sticky;top:0;overflow-y:auto}.main{flex-direction:column;gap:18px;width:100%;max-width:860px;margin:0 auto;padding:28px 28px 80px;display:flex}.brand{align-items:center;gap:12px;display:flex}.flag{border-radius:3px;flex:none;grid-template-rows:1fr 1fr 1fr;width:30px;height:22px;display:grid;overflow:hidden}.flag i:first-child{background:#111}.flag i:nth-child(2){background:#d00}.flag i:nth-child(3){background:var(--yellow)}.brand-name{font-family:var(--font-display);font-size:1.35rem;font-weight:800;line-height:1.1}.brand-sub{color:var(--muted);font-size:.9rem}.overall-top{justify-content:space-between;margin-bottom:6px;font-size:.95rem;display:flex}.bar{background:var(--line);border-radius:4px;height:8px;overflow:hidden}.bar>span{background:var(--blue);border-radius:4px;height:100%;transition:width .4s;display:block}.route{margin:0;padding:0;list-style:none}.stop{position:relative}.stop:before{content:"";background:var(--line);width:3px;position:absolute;top:40px;bottom:-6px;left:15px}.stop:last-child:before{display:none}.stop.is-done:before{background:var(--blue)}.stop button{text-align:left;cursor:pointer;background:0 0;border:0;border-radius:10px;grid-template-columns:34px minmax(0,1fr) auto;align-items:start;gap:12px;width:100%;padding:7px 8px 7px 0;display:grid}.stop button:hover,.stop.is-active button{background:var(--tint)}.stop-mark{border:3px solid var(--line);background:var(--card);border-radius:50%;place-items:center;width:32px;height:32px;margin-left:1px;font-size:.85rem;font-weight:700;display:grid}.stop.is-active .stop-mark{border-color:var(--blue)}.stop.is-done .stop-mark{background:var(--blue);border-color:var(--blue);color:#fff}.stop-text{flex-direction:column;min-width:0;padding-top:1px;display:flex}.stop-title{font-weight:600;line-height:1.2}.stop.is-active .stop-title{font-weight:700}.stop-de{color:var(--muted);font-size:.85rem;line-height:1.25}.stop-pct{color:var(--muted);font-variant-numeric:tabular-nums;padding-top:6px;font-size:.85rem}.link-btn{color:var(--muted);cursor:pointer;background:0 0;border:0;align-self:flex-start;margin-top:auto;padding:6px 0;font-size:.9rem;text-decoration:underline}.plate{background:var(--blue);color:#fff;border-radius:16px;position:relative}.plate:after{content:"";pointer-events:none;border:2px solid #ffffffeb;border-radius:11px;position:absolute;inset:6px}.hero{padding:26px 30px 24px}.hero-de{overflow-wrap:anywhere;font-family:var(--font-display);letter-spacing:.005em;font-size:clamp(1.9rem,5.5vw,3rem);font-weight:700;line-height:1.05}.hero-en{opacity:.88;margin-top:6px;font-size:1.1rem;font-weight:500}.blurb{max-width:62ch;color:var(--muted)}.topline{justify-content:flex-end;align-items:center;gap:10px;font-size:.95rem;display:flex}.tabs{border-bottom:2px solid var(--line);gap:4px;display:flex}.tab{color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:8px 8px 0 0;padding:10px 18px;font-weight:600;position:relative}.tab.is-on{color:var(--ink)}.tab.is-on:after{content:"";background:var(--yellow);border-radius:2px;height:4px;position:absolute;bottom:-2px;left:0;right:0}.stack{flex-direction:column;gap:16px;display:flex}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px 22px}.card-title{font-family:var(--font-display);font-size:1.3rem;font-weight:700;line-height:1.2}.group{margin-top:14px}.group-title{margin-bottom:2px;font-size:.98rem;font-weight:600}.callout{border-left:4px solid var(--blue);background:var(--tint);border-radius:8px;margin:12px 0;padding:10px 14px}.callout--warn{background:var(--tint-yellow);border-left-color:#d9a900}.notice{background:var(--tint-yellow);border-radius:10px;padding:10px 14px;font-size:.95rem}.pill{border-radius:999px;align-items:center;gap:4px;padding:2px 10px;font-size:.85rem;font-weight:600;display:inline-flex}.pill--ok{background:var(--tint-green);color:var(--green)}.btn{cursor:pointer;border:1px solid #0000;border-radius:10px;justify-content:center;align-items:center;gap:8px;min-height:44px;padding:9px 16px;font-weight:600;transition:background .15s,border-color .15s;display:inline-flex}.btn:disabled{opacity:.55;cursor:default}.btn--primary{background:var(--blue);color:#fff}.btn--primary:hover:not(:disabled){background:var(--blue-deep)}.btn--ghost{background:var(--card);border-color:var(--line)}.btn--ghost:hover:not(:disabled){border-color:var(--blue)}.btn--accent{background:var(--yellow);color:#111}.btn--accent:hover:not(:disabled){background:#f0be00}.btn-row{flex-wrap:wrap;gap:10px;margin-top:14px;display:flex}.toolbar{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.icon-btn:hover:not(:disabled){border-color:var(--blue)}.icon-btn--mic{background:var(--yellow);border-color:var(--yellow);color:#111}.icon-btn--mic:hover:not(:disabled){border-color:#111}.is-busy{animation:1.1s ease-in-out infinite pulse}@keyframes pulse{0%,to{box-shadow:0 0 #ffcc00b3}50%{box-shadow:0 0 0 8px #fc00}}.segment-group{border:1px solid var(--line);background:var(--card);border-radius:10px;display:inline-flex;overflow:hidden}.segment{cursor:pointer;background:0 0;border:0;min-height:40px;padding:8px 14px;font-weight:500}.segment+.segment{border-left:1px solid var(--line)}.segment.is-on{background:var(--blue);color:#fff}.segments{flex-wrap:wrap;gap:12px;margin-top:16px;display:flex}.ex-list{margin:6px 0 0;padding:0;list-style:none}.ex{border-top:1px solid var(--line);grid-template-columns:minmax(0,1fr) auto auto;align-items:center;gap:6px 10px;padding:10px 0;display:grid}.ex:first-child{border-top:0}.ex-text{flex-direction:column;min-width:0;display:flex}.ex-de{font-family:var(--font-display);font-size:1.45rem;font-weight:600;line-height:1.2}.ex-meta{flex-wrap:wrap;gap:0 14px;display:flex}.ex-sounds{color:var(--muted);font-size:.95rem}.ex-sounds strong{color:var(--ink)}.ex-en{color:var(--muted);font-size:.98rem}mark.hl{background:var(--yellow);color:#111;border-radius:3px;padding:0 2px}.say-msg{background:var(--tint);border-radius:8px;flex-basis:100%;grid-column:1/-1;padding:8px 12px;font-size:.95rem}.say-msg.is-great{background:var(--tint-green)}.say-msg.is-close{background:var(--tint-yellow)}.say-msg.is-retry,.say-msg.is-error{background:var(--tint-red)}.rule-head{align-items:center;gap:16px;display:flex}.plate--symbol{text-align:center;min-width:78px;font-family:var(--font-display);white-space:nowrap;flex:none;padding:14px 16px;font-size:1.7rem;font-weight:700;line-height:1}.plate--symbol span{z-index:1;position:relative}.alphabet-detail{grid-template-columns:190px minmax(0,1fr);align-items:start;gap:22px;display:grid}.plate--letter{aspect-ratio:1;font-family:var(--font-display);place-items:center;font-size:4.6rem;font-weight:700;line-height:1;display:grid}.plate--letter span{z-index:1;position:relative}.say-as{font-size:1.15rem}.tile-grid{grid-template-columns:repeat(auto-fill,minmax(74px,1fr));gap:8px;display:grid}.tile-row{flex-wrap:wrap;gap:8px;margin-top:12px;display:flex}.tile-row .tile{width:78px}.tile{border:1px solid var(--line);background:var(--card);cursor:pointer;border-radius:12px;flex-direction:column;align-items:center;gap:2px;padding:10px 4px 8px;display:flex}.tile:hover{border-color:var(--blue)}.tile.is-selected{border-color:var(--blue);box-shadow:0 0 0 2px var(--blue)}.tile.is-playing{background:var(--tint-yellow)}.tile-ch{font-family:var(--font-display);font-size:1.6rem;font-weight:700;line-height:1.1}.tile-guide{color:var(--muted);text-align:center;font-size:.75rem;line-height:1.2}.deck{flex-direction:column;gap:14px;display:flex}.deck-top{justify-content:space-between;font-weight:600;display:flex}.deck-bar{background:var(--line);border-radius:3px;height:6px;overflow:hidden}.deck-bar>span{background:var(--yellow);height:100%;transition:width .3s;display:block}.plate--deck{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:8px;min-height:210px;padding:36px 28px;display:flex}.plate--deck>span{z-index:1;position:relative}.deck-tile{font-family:var(--font-display);opacity:.85;font-size:1.6rem;font-weight:700}.deck-de{font-family:var(--font-display);overflow-wrap:anywhere;font-size:clamp(2.1rem,7vw,3.5rem);font-weight:700;line-height:1.1}.deck-sounds{color:var(--yellow);font-size:1.15rem;font-weight:600}.deck-en{text-align:center;color:var(--muted);font-size:1.2rem}.deck-actions{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}.deck-nav{justify-content:space-between;gap:10px;display:flex}.chat{flex-direction:column;gap:10px;margin-top:14px;display:flex}.bubble{border-radius:14px;outline:2px solid #0000;flex-direction:column;max-width:min(80%,460px);padding:10px 14px;display:flex}.bubble--left{background:var(--tint);border-bottom-left-radius:4px;align-self:flex-start}.bubble--right{background:var(--tint-yellow);border-bottom-right-radius:4px;align-self:flex-end}.bubble.is-active{outline-color:var(--blue)}.bubble-who{color:var(--muted);font-size:.8rem;font-weight:700}.bubble-de{font-family:var(--font-display);font-size:1.25rem;font-weight:600}.bubble-en{color:var(--muted);font-size:.95rem}.roleplay{border-top:1px solid var(--line);margin-top:22px;padding-top:16px}.roleplay-stage{flex-direction:column;gap:10px;margin-top:8px;display:flex}.form{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 16px;margin-top:14px;display:grid}.field{flex-direction:column;gap:4px;font-size:.95rem;font-weight:600;display:flex}.field input,.field select{border:1px solid var(--line);background:var(--card);border-radius:10px;min-height:44px;padding:8px 12px;font-weight:400}.intro-list{margin:10px 0 0;padding:0;list-style:none}.intro-row{border-top:1px solid var(--line);border-radius:8px;grid-template-columns:150px minmax(0,1fr) auto;align-items:center;gap:6px 14px;padding:10px 8px;display:grid}.intro-row:first-child{border-top:0}.intro-row.is-active{background:var(--tint-yellow)}.intro-topic{flex-direction:column;line-height:1.25;display:flex}.intro-sentence{flex-direction:column;display:flex}.intro-actions{flex-wrap:wrap;gap:6px 10px;display:flex}.quiz-run{flex-direction:column;gap:14px;display:flex}.q-prompt{font-family:var(--font-display);font-size:1.5rem;font-weight:700;line-height:1.25}.q-options{gap:10px;display:grid}.q-options--big{grid-template-columns:repeat(2,minmax(0,1fr))}.q-option{border:2px solid var(--line);background:var(--card);text-align:left;cursor:pointer;border-radius:12px;padding:14px 16px;font-size:1.08rem}.q-options--big .q-option{font-family:var(--font-display);text-align:center;font-size:1.45rem;font-weight:600}.q-option:hover:not(:disabled){border-color:var(--blue)}.q-option:disabled{cursor:default}.q-option.is-right{border-color:var(--green);background:var(--tint-green)}.q-option.is-wrong{border-color:var(--red);background:var(--tint-red)}.q-option.is-dim{opacity:.55}.q-feedback .ok{color:var(--green)}.q-feedback .bad{color:var(--red)}.q-feedback p{line-height:1.45}.q-feedback strong{display:inline}.quiz-result{text-align:center}.quiz-result .btn-row{justify-content:center}.score{font-family:var(--font-display);margin-bottom:6px;font-size:3.4rem;font-weight:800;line-height:1}.checklist{grid-template-columns:repeat(2,minmax(0,1fr));gap:6px 16px;margin:12px 0 0;padding:0;list-style:none;display:grid}.checklist li{color:var(--muted);align-items:center;gap:10px;display:flex}.checklist li.is-done{color:var(--ink)}.check{border:2px solid var(--line);border-radius:50%;flex:none;place-items:center;width:22px;height:22px;display:grid}.checklist li.is-done .check{background:var(--blue);border-color:var(--blue);color:#fff}@media (max-width:900px){.app{grid-template-columns:minmax(0,1fr)}.rail{border-right:0;border-bottom:1px solid var(--line);gap:14px;height:auto;padding:16px 16px 12px;position:static}.route{scroll-snap-type:x proximity;gap:8px;padding-bottom:6px;display:flex;overflow-x:auto}.stop{scroll-snap-align:start;flex:none}.stop:before{display:none}.stop button{border:1px solid var(--line);white-space:nowrap;border-radius:999px;gap:8px;width:auto;padding:5px 14px 5px 5px;display:flex}.stop-de,.stop-pct{display:none}.link-btn{margin-top:0}.main{padding:18px 16px 64px}.hero{padding:20px 22px 18px}}@media (max-width:640px){.alphabet-detail{grid-template-columns:minmax(0,1fr)}.plate--letter{aspect-ratio:auto;min-height:130px}.form{grid-template-columns:minmax(0,1fr)}.intro-row{grid-template-columns:minmax(0,1fr) auto}.intro-topic{grid-column:1/-1}.checklist,.q-options--big{grid-template-columns:minmax(0,1fr)}.card{padding:16px}.rule-head{align-items:flex-start}.bubble{max-width:92%}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important;animation:none!important}.confetti{display:none}}.chapters{grid-template-columns:repeat(7,minmax(0,1fr));gap:6px;display:grid}.chapter-pill{border:1px solid var(--line);background:var(--card);cursor:pointer;border-radius:8px;place-items:center;width:100%;height:36px;font-size:.9rem;font-weight:700;display:grid}.chapter-pill:hover:not(:disabled){border-color:var(--blue)}.chapter-pill.is-active{background:var(--blue);border-color:var(--blue);color:#fff}.chapter-pill.is-done:not(.is-active){border-color:var(--green);color:var(--green)}.chapter-pill:disabled{opacity:.4;cursor:default;border-style:dashed}.icon-btn--sm{width:32px;height:32px}.icon-btn--sm svg{width:16px;height:16px}.bullets{flex-direction:column;gap:6px;margin:10px 0 0;padding-left:1.2em;display:flex}.table-wrap{margin-top:12px;overflow-x:auto}.ds-table{border-collapse:collapse;width:100%;min-width:420px}.ds-table th,.ds-table td{text-align:left;border-bottom:1px solid var(--line);padding:10px 12px}.ds-table th{color:var(--muted);font-size:.92rem;font-weight:600}.ds-table td{font-family:var(--font-display);font-size:1.3rem;font-weight:600}.ds-table td.row-head{font-family:var(--font-body);color:var(--muted);font-size:1rem;font-weight:600}.cell{align-items:center;gap:10px;display:inline-flex}.noun-grid{grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:8px;margin-top:12px;display:grid}.noun{border:1px solid var(--line);background:var(--card);text-align:left;cursor:pointer;border-left-width:6px;border-radius:10px;flex-direction:column;align-items:flex-start;gap:1px;min-width:0;padding:10px 12px;display:flex}.noun:hover{background:var(--tint)}.noun--der{border-left-color:var(--der)}.noun--die{border-left-color:var(--die)}.noun--das{border-left-color:var(--das)}.noun-line{align-items:baseline;gap:6px;display:flex}.noun-art{font-size:.95rem;font-weight:700}.noun--der .noun-art{color:var(--der)}.noun--die .noun-art{color:var(--die)}.noun--das .noun-art{color:var(--das)}.noun-de{overflow-wrap:anywhere;font-family:var(--font-display);font-size:1.3rem;font-weight:700;line-height:1.2}.noun-en{color:var(--muted);font-size:.92rem;line-height:1.25}.noun.is-exception{border-style:dashed}.exceptions{background:var(--tint-yellow);border-radius:10px;margin-top:12px;padding:10px 12px 12px}.exceptions .noun-grid{margin-top:8px}.exceptions-label{font-size:.95rem;font-weight:700}.endings{flex-direction:column;gap:4px;margin-top:6px;display:flex}.ending{border-top:1px solid var(--line);grid-template-columns:132px minmax(0,1fr);align-items:start;gap:16px;padding:14px 0;display:grid}.ending:first-child{border-top:0}.plate--suffix{text-align:center;font-family:var(--font-display);overflow-wrap:anywhere;margin-top:12px;padding:12px 10px;font-size:1.35rem;font-weight:700;line-height:1.15}.plate--suffix span{z-index:1;position:relative}@media (max-width:640px){.ending{grid-template-columns:minmax(0,1fr);gap:0}.plate--suffix{justify-self:start;min-width:96px;margin-top:0}.noun-grid{grid-template-columns:repeat(auto-fill,minmax(136px,1fr))}.noun-de{font-size:1.15rem}}@media (max-width:900px){.chapters{grid-template-columns:repeat(14,minmax(28px,1fr));overflow-x:auto}}.btn--sm{min-height:36px;padding:6px 12px;font-size:.92rem}.btn--lg{min-height:52px;padding:12px 26px;font-size:1.1rem}.btn--wide{width:100%}.card{box-shadow:var(--shadow)}.chip{background:var(--tint);color:var(--ink);white-space:nowrap;border-radius:999px;align-items:center;padding:5px 12px;font-size:.85rem;font-weight:600;display:inline-flex}.chip--warn{background:var(--tint-red)}.account{align-items:center;gap:8px;display:inline-flex}.link-btn--inline{align-self:center;margin-top:0}.topline{flex-wrap:wrap;row-gap:10px}.topline-home{margin-right:auto}.topline-label{margin-left:6px}.brand--btn{cursor:pointer;text-align:left;background:0 0;border:0;border-radius:10px;padding:0}.brand--btn:hover{opacity:.85}.brand--btn>span{flex-direction:column;display:flex}.splash{min-height:100vh;color:var(--muted);flex-direction:column;justify-content:center;align-items:center;gap:14px;font-weight:600;display:flex}.flag--big{border-radius:6px;width:54px;height:40px}.auth{background:var(--paper);grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);min-height:100vh;display:grid}.auth--single{grid-template-columns:minmax(0,1fr);place-items:center;padding:24px}.auth-hero{border-radius:0;align-items:center;padding:48px;display:flex}.auth-hero:after{display:none}.auth-hero-inner{max-width:460px}.auth-title{font-family:var(--font-display);margin-top:18px;font-size:clamp(2.2rem,5vw,3.2rem);font-weight:800}.auth-sub{opacity:.9;margin-top:10px;font-size:1.1rem}.auth-points{flex-direction:column;gap:12px;margin:28px 0 0;padding:0;list-style:none;display:flex}.auth-points li{align-items:center;gap:10px;display:flex}.auth-points .icon{flex:none}.auth-card{place-self:center;width:100%;max-width:420px;margin:24px;padding:26px 26px 24px}.auth-form{flex-direction:column;gap:14px;margin-top:14px;display:flex}.auth-form .field input{width:100%}.auth-divider{color:var(--muted);align-items:center;gap:10px;margin:18px 0 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