:root { color-scheme: dark; --background:#292725; --surface:#33302d; --variant:#463d33; --primary:#d4b99b; --text:#e8e2d8; --muted:#bab1a6; --line:#49443f; --error:#ff887d; font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans","Yu Gothic",sans-serif; background:var(--background);color:var(--text);-webkit-tap-highlight-color:transparent; }
:root[data-theme="light"] {color-scheme:light;--background:#f1f0e9;--surface:#f7f6f0;--variant:#c8dfd0;--primary:#2f684f;--text:#26332c;--muted:#667369;--line:#dce3dc;--error:#b3261e;}
*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,select,input{touch-action:manipulation}button,a{color:inherit}button{cursor:pointer}button:disabled{opacity:.4;cursor:default}a{text-decoration:none}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:3px}button{border:0;background:transparent}svg{width:24px;height:24px;flex-shrink:0;vertical-align:middle}.app{max-width:760px;height:100vh;height:100dvh;margin:0 auto;display:flex;flex-direction:column;background:var(--background);overflow:hidden;padding-top:env(safe-area-inset-top)}
#app-header{min-height:68px;display:flex;align-items:center;gap:4px;padding:5px 12px;border-bottom:1px solid var(--line);flex-shrink:0}.header-copy{flex:1;min-width:0;padding:3px 8px}.header-copy h1{font-size:20px;font-weight:500;margin:0;line-height:1.4}.header-copy p{font-size:12px;line-height:1.5;color:var(--muted);margin:3px 0 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.header-options{display:flex;gap:2px;align-items:center}.header-options button{font-size:11px;min-width:34px;min-height:44px;padding:4px;color:var(--muted)}.header-options button[aria-pressed="true"]{color:var(--primary)}.icon-button{width:44px;height:44px;display:inline-grid;place-items:center;flex-shrink:0;border-radius:12px;color:var(--primary)}
#app-content{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:var(--line) transparent}#app-footer{flex-shrink:0;background:var(--background);padding-bottom:env(safe-area-inset-bottom)}#error{font-size:13px;line-height:1.5;color:var(--error);margin:0;padding:10px 20px;border-bottom:1px solid var(--line);flex-shrink:0}#error[hidden]{display:none}.loading{padding:50px 24px;text-align:center;color:var(--muted);font-size:14px}.retry{margin:30px;padding:12px 24px;border:1px solid var(--primary);border-radius:12px;color:var(--primary)}
.japanese{font-family:"Hiragino Kaku Gothic ProN","Yu Gothic",-apple-system,sans-serif;font-size:19px;line-height:1.9;white-space:pre-wrap;overflow-wrap:anywhere;font-weight:400}.japanese rt{font-size:10px;color:var(--muted)}.hide-ruby rt{visibility:hidden}.hide-translation .translation{display:none}.translation{font-size:14px;line-height:1.7;color:var(--muted);margin-top:6px;display:block}.muted{color:var(--muted);font-size:13px;line-height:1.7}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
.bottom-nav{display:flex;border-top:1px solid var(--line);padding:6px 12px 8px;gap:8px}.bottom-nav a{flex:1;min-height:62px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;font-size:12px;color:var(--muted)}.bottom-nav a[aria-current="page"]{color:var(--primary)}.bottom-nav svg{width:26px;height:26px}
.chapter-list{padding:0 24px 20px}.chapter-row{display:block;padding:18px 0;border-bottom:1px solid var(--line)}.chapter-row>div:first-child{display:flex;align-items:center;justify-content:space-between;color:var(--primary);font-size:15px}.chapter-row .japanese{font-size:17px;margin-top:4px}.chapter-row svg{width:20px;height:20px;color:var(--text)}.lesson-menu{padding:18px 24px 28px}.lesson-menu h2{font-size:23px;margin:0 0 24px;font-weight:400}.menu-row{min-height:62px;padding:14px 16px;background:var(--surface);border-radius:14px;display:flex;align-items:center;gap:16px;margin-bottom:10px}.menu-row>svg:first-child{color:var(--primary)}.menu-row>span{flex:1;font-size:17px}.menu-row>svg:last-child{width:20px;height:20px}
.reading-content{padding:10px 20px 20px}.reader-row{display:block;width:100%;text-align:left;padding:14px 4px;border-bottom:1px solid var(--line);border-radius:0}.reader-row.is-active,.vocab-row.is-active{background:var(--variant);border-radius:12px}.reader-row .line-body{display:flex;gap:8px;align-items:flex-start}.reader-row .line-text{flex:1;min-width:0}.reader-row .speaker{flex:0 0 54px;max-width:84px;text-align:right;font-size:17px;line-height:2.1;overflow-wrap:anywhere;color:var(--text)}.reader-row .speaker ruby{font-size:17px}.reader-row .speaker rt{font-size:9px;color:var(--muted)}.reader-row .direction{padding-left:66px;font-size:12px;color:var(--muted);margin-bottom:6px}.group-heading{color:var(--primary);font-size:16px;line-height:1.7;padding:16px 4px 4px}.group-heading:first-child{padding-top:0}.applied-intro h2{font-size:18px;font-weight:400;margin:8px 4px 12px}.applied-intro p{font-size:14px;line-height:1.7;color:var(--muted);margin:0 4px 12px}.audio-note{font-size:11px;color:var(--muted);line-height:1.5;margin:6px 0 0;grid-column:1/-1}.vocabulary{padding-top:0}.vocab-head,.vocab-row{display:grid;grid-template-columns:minmax(0,1.35fr) 28px 34px minmax(0,1fr) 42px 42px;gap:2px;align-items:center}.vocab-head{position:sticky;top:0;z-index:2;background:var(--background);min-height:45px;font-size:11px;padding:8px 2px;border-bottom:1px solid var(--line)}.vocab-head span:nth-last-child(-n+2){text-align:center}.vocab-row{padding:12px 2px;border-bottom:1px solid var(--line)}.vocab-row .japanese{font-size:17px;line-height:1.9}.vocab-row .translation{display:block;font-size:13px;margin:0}.hide-translation .vocab-row .translation{visibility:hidden}.pitch{font-size:11px}.kind{font-size:10px;overflow-wrap:anywhere}.word-play{height:42px;width:38px;margin:0 2px;border:1px solid var(--primary);border-radius:10px;color:var(--primary);display:grid;place-items:center}.word-play svg{height:19px;width:19px}
.reader-controls{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 14px 6px;border-top:1px solid var(--line)}select{border:0;color:var(--primary);background:var(--background);min-height:44px;font-size:12px;max-width:100%;border-radius:8px}.reader-controls>select{max-width:100px;flex:1}.playback-options{display:flex;flex:1;justify-content:flex-end;min-width:0}.playback-options select{max-width:55px;font-size:12px}.play-circle{border:0;border-radius:50%;background:var(--primary);color:var(--background);height:64px;width:64px;flex:none;display:inline-grid;place-items:center}.play-circle svg{height:31px;width:31px;stroke-width:2}.play-status{min-height:14px;font-size:10px;color:var(--muted);text-align:center;line-height:1.4;padding-bottom:2px}
.app[data-page="theater"] #app-content{overflow:hidden;display:flex}.theater-body{flex:1;min-height:0;display:flex;flex-direction:column;padding:12px 16px 0}.scene-media{flex:none;aspect-ratio:740/500;width:100%;max-height:45%;overflow:hidden;background:transparent}.scene-image{display:block;width:100%;height:100%;object-fit:contain;border-radius:8px}.scene-dialogue{flex:1;min-height:0;overflow-y:auto;padding:12px 8px 10px}.scene-dialogue>.speaker{font-size:14px;color:var(--primary);margin-bottom:12px;line-height:1.9}.dialogue-replay{display:block;text-align:left;width:100%;border-radius:12px;padding:4px 0 12px}.dialogue-replay .japanese{font-size:23px;display:block;line-height:1.85}.dialogue-replay .translation{font-size:15px;margin-top:9px}.dialogue-replay.concealed{display:none}.practice-hint{display:flex;gap:8px;align-items:center;color:var(--muted);font-size:12px;line-height:1.5;margin-bottom:10px}.practice-hint button{color:var(--primary);font-size:12px;min-height:44px;white-space:nowrap}.practice-translation{font-size:18px;line-height:1.7;margin:10px 0}.story-ended{text-align:center;font-size:22px;margin-top:20px}.theater-footer{padding:6px 16px 10px}.theater-sources{display:flex;align-items:center;gap:4px;margin-bottom:8px}.theater-sources>button{flex:1;min-height:44px;font-size:14px;color:var(--primary);white-space:nowrap;padding:0 3px}.theater-sources label{max-width:48%;min-width:0}.theater-sources select{font-size:13px;text-overflow:ellipsis;width:100%}.theater-transport{display:flex;justify-content:center;align-items:center;gap:12px;min-height:66px}.replay-button{border:1px solid var(--line);border-radius:28px;color:var(--primary);min-height:44px;padding:8px 16px;display:flex;align-items:center;gap:7px}.replay-button svg{width:20px;height:20px}.story-progress{display:flex;align-items:center;gap:16px;margin-top:10px;color:var(--muted);font-size:12px}.story-progress input{min-width:0;flex:1;accent-color:var(--primary);height:28px}.story-progress span{min-width:32px;text-align:right}
.full-player{padding:20px 24px 32px}.full-player h2{font-weight:400;font-size:23px;margin:0 0 25px}.full-player audio{width:100%;height:52px;margin-bottom:10px}.full-player h3{font-size:17px;font-weight:400;margin-top:28px}.track-sections{margin-top:30px}.track-sections button{display:flex;justify-content:space-between;align-items:center;width:100%;padding:17px 4px;border-bottom:1px solid var(--line);color:var(--primary);text-align:left;font-size:16px}.answer-option{width:100%;display:flex;align-items:flex-start;gap:12px;padding:12px;border:1px solid var(--line);border-radius:12px;text-align:left;margin:10px 0}.answer-option>span{color:var(--primary);padding-top:8px}.answer-option .japanese{font-size:17px}.answer-option.chosen{border-color:var(--primary);background:var(--variant)}#answer-result{color:var(--primary);font-size:14px}.full-player details{margin-top:25px;font-size:14px}.full-player summary{color:var(--primary);padding:12px 0;cursor:pointer}.transcript{margin:18px 0}.transcript .japanese{font-size:18px}.settings-list{padding:12px 24px 30px}.settings-list h2{font-size:14px;font-weight:400;color:var(--primary);margin:16px 0 4px}.settings-list>label{display:flex;align-items:center;justify-content:space-between;min-height:62px;border-bottom:1px solid var(--line);font-size:16px}.settings-list input[type="checkbox"]{width:22px;height:22px;accent-color:var(--primary)}.settings-list select{font-size:14px}.about-title{text-align:center;margin:45px 0 4px;font-size:18px}.settings-list>.muted{text-align:center}
@media(min-width:800px){.app{box-shadow:0 0 30px #0003}.theater-body{padding-left:24px;padding-right:24px}.scene-media{max-height:48%;width:auto;align-self:center;max-width:100%}.theater-footer{padding-left:24px;padding-right:24px}}@media(max-height:600px) and (min-width:550px){.app{max-width:none}.theater-body{flex-direction:row;gap:16px;padding:10px 20px}.scene-media{width:48%;max-height:100%;align-self:stretch;aspect-ratio:auto}.scene-dialogue{width:50%;flex:1}.theater-footer{padding-top:0}.theater-sources{margin-bottom:0}.theater-transport{min-height:48px}.theater-transport .play-circle{height:46px;width:46px}.story-progress{margin-top:0}}@media(max-width:350px){.header-copy h1{font-size:18px}.header-options button{min-width:30px;font-size:10px}.reading-content{padding-left:12px;padding-right:12px}.vocab-head,.vocab-row{grid-template-columns:minmax(0,1.2fr) 24px 28px minmax(0,1fr) 38px 38px;gap:1px}.word-play{width:34px}.vocab-row .japanese{font-size:16px}.vocab-row .translation{font-size:12px}.theater-transport{gap:8px}.theater-sources>button,.theater-sources select{font-size:11px}.theater-body{padding-left:12px;padding-right:12px}}