:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;font-family:Hiragino Sans,Yu Gothic UI,Segoe UI,system-ui,sans-serif;font-weight:400;line-height:1.5}a{color:inherit}button{font-family:inherit}:root{--bg:#0e1116;--panel:#161b22;--panel-2:#1f262d;--border:#2b333d;--text:#e6edf3;--muted:#8b949e;--accent:#58a6ff;--ok:#3fb950;--todo:#d29922;--danger:#f85149;--en:#c9d1d9;--ja:#8b949e}*{box-sizing:border-box}body,html,#root{background:var(--bg);color:var(--text);margin:0;padding:0;font-family:Hiragino Sans,Yu Gothic UI,Segoe UI,"system-ui",sans-serif}body[data-font-scale=medium]{zoom:1.15}body[data-font-scale=large]{zoom:1.3}.font-scale-toggle{background:var(--panel-2);border:1px solid var(--border);border-radius:6px;flex-shrink:0;gap:2px;padding:2px;display:inline-flex}.font-scale-toggle button{color:var(--muted);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:4px;min-width:28px;padding:3px 8px;font-size:12px;font-weight:600}.font-scale-toggle button:hover{color:var(--text)}.font-scale-toggle button.on{background:var(--accent);color:#0e1116}.sync-indicator{background:var(--panel-2);border:1px solid var(--border);color:var(--muted);cursor:pointer;border-radius:6px;align-items:center;gap:4px;padding:3px 8px;font-size:12px;font-weight:600;display:inline-flex}.sync-indicator:hover{color:var(--text)}.sync-indicator.status-ok{color:var(--ok)}.sync-indicator.status-error{color:var(--danger)}.sync-indicator.status-syncing .sync-icon{animation:1.2s linear infinite sync-spin;display:inline-block}@keyframes sync-spin{to{transform:rotate(360deg)}}.sync-indicator .sync-label{letter-spacing:.02em}.content-list-header-controls{align-items:center;gap:8px;display:flex}.app{max-width:1240px;margin:0 auto;padding:16px}.app-header{z-index:60;background:var(--bg);border-bottom:1px solid var(--border);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin:0 -16px 16px;padding:12px 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button{cursor:not-allowed;opacity:.5}.content-card-cover{text-align:center;background:var(--bg);border-radius:4px;justify-content:center;align-self:start;align-items:center;width:72px;height:96px;display:flex;overflow:hidden}.content-card-cover-img{object-fit:contain;width:100%;height:100%;display:block}.content-card-cover-emoji{font-size:40px;line-height:1}.content-card-body{flex-direction:column;gap:6px;min-width:0;display:flex}.content-card-titles{flex-wrap:wrap;align-items:baseline;gap:8px;display:flex}.content-card-titles h2{margin:0;font-size:16px}.content-card-subtitle{color:var(--muted);font-size:12px}.content-card-desc{color:var(--muted);margin:0;font-size:13px;line-height:1.5}.content-card-meta{color:var(--muted);letter-spacing:.05em;text-transform:uppercase;margin-top:4px;font-size:11px}.app-body{grid-template-columns:240px 1fr;gap:16px;display:grid}.main-area{min-width:0}.sidebar{background:var(--panel);border:1px solid var(--border);border-radius:10px;align-self:start;max-height:calc(100vh - 32px);padding:8px;position:sticky;top:16px;overflow-y:auto}.sidebar-header{color:var(--muted);letter-spacing:.05em;text-transform:uppercase;border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;margin-bottom:4px;padding:4px 8px 8px;font-size:12px;display:flex}.sidebar-header .close-btn{color:var(--text);border:1px solid var(--border);cursor:pointer;background:0 0;border-radius:6px;width:28px;height:28px;padding:0;font-size:18px;line-height:1;display:none}.sidebar nav{flex-direction:column;gap:2px;display:flex}.sidebar-unit{flex-direction:column;display:flex}.sidebar-unit .unit-toggle{color:var(--text);cursor:pointer;text-align:left;background:0 0;border:none;border-radius:6px;align-items:center;gap:6px;padding:6px 8px;font-size:13px;font-weight:600;display:flex}.sidebar-unit .unit-toggle:hover{background:var(--panel-2)}.sidebar-unit .unit-toggle 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0;border-color:#0000}.heatmap-cell.l1{background:#3fb95040}.heatmap-cell.l2{background:#3fb95080}.heatmap-cell.l3{background:#3fb950bf}.heatmap-cell.l4{background:#3fb950}.heatmap-legend{color:var(--muted);grid-column:2;align-items:center;gap:4px;margin-top:6px;font-size:10px;display:flex}.heatmap-legend .heatmap-cell{width:10px;height:10px}.daily-bars{border-top:1px solid var(--border);grid-template-columns:repeat(14,1fr);gap:4px;margin-top:14px;padding-top:12px;display:grid}.daily-bar{flex-direction:column;align-items:center;gap:2px;min-width:0;font-size:10px;display:flex}.daily-bar .bar-min{color:var(--text);height:14px;font-size:11px;font-weight:700}.daily-bar:not(.today) .bar-min{color:var(--muted)}.daily-bar .bar-track{background:var(--panel-2);border-radius:3px;align-items:flex-end;width:100%;height:40px;display:flex;overflow:hidden}.daily-bar .bar-fill{background:#3fb950cc;width:100%;min-height:2px;transition:height .2s}.daily-bar.today 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.value{color:var(--accent);font-variant-numeric:tabular-nums;font-size:18px;font-weight:600}.content-card-time{color:var(--accent);font-variant-numeric:tabular-nums}.unit-group-list{flex-direction:column;gap:10px;margin:0;padding:0;list-style:none;display:flex}.unit-group-header{color:var(--accent);border-bottom:1px solid var(--border);margin:28px 0 8px;padding-bottom:6px;font-size:16px}.unit-open-btn{background:var(--panel);border:1px solid var(--border);border-left:3px solid var(--accent);cursor:pointer;width:100%;color:var(--text);text-align:left;border-radius:10px;grid-template-columns:minmax(180px,1fr) 2fr auto;align-items:center;gap:16px;padding:14px 18px;transition:border-color .15s,transform .15s;display:grid}.unit-open-btn:hover:not([disabled]){border-color:var(--accent);transform:translateY(-1px)}.unit-open-btn[disabled]{cursor:not-allowed;opacity:.5}.unit-open-btn-main{flex-direction:column;gap:4px;display:flex}.unit-open-btn-main 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.track-id{color:var(--accent);letter-spacing:.03em;text-transform:uppercase;font-size:12px;font-weight:600}.track-block .drill-items{margin:0}.unit-intro-banner{background:var(--panel-2);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:8px;margin-bottom:14px;padding:10px 14px}.unit-intro-banner summary{cursor:pointer;align-items:baseline;gap:10px;list-style:none;display:flex}.unit-intro-banner summary::-webkit-details-marker{display:none}.unit-intro-banner summary:after{content:"▾";color:var(--muted);margin-left:auto;font-size:12px}.unit-intro-banner:not([open]) summary:after{content:"▸"}.unit-intro-banner .lbl{color:var(--muted);letter-spacing:.05em;text-transform:uppercase;font-size:11px;font-weight:600}.unit-intro-banner .ttl{color:var(--text);font-size:14px;font-weight:600}.unit-intro-banner p{color:var(--muted);white-space:pre-wrap;margin:8px 0 0;font-size:13px;line-height:1.6}.player-header{top:var(--app-header-h,86px);z-index:50;background:var(--bg);border-bottom:1px solid var(--border);align-items:center;gap:12px;margin:0 -16px 12px;padding:8px 16px;display:flex;position:sticky}.player-header .title-block{flex:1;min-width:0}.player-header .back{background:var(--panel-2);color:var(--accent);border:1px solid var(--border);cursor:pointer;border-radius:6px;flex-shrink:0;padding:5px 10px;font-size:12px;font-weight:600}.player-header .back:hover{border-color:var(--accent)}.title-block .track-id{color:var(--muted);font-size:12px}.title-block h2{margin:4px 0;font-size:18px}.title-block .ex-desc{color:var(--muted);white-space:pre-line;background:0 0;margin:0;font-size:13px;line-height:1.7}.unit-intro{white-space:pre-line;line-height:1.7}.key-sentences{background:var(--panel-2);border:1px solid var(--border);border-radius:8px;margin:10px 0;padding:8px 12px}.key-sentences summary{cursor:pointer;color:var(--muted);font-size:13px}.key-sentences ul{margin:8px 0 0;padding:0;list-style:none}.key-sentences li{margin-bottom:8px}.key-sentences .en{color:var(--en);font-weight:600}.key-sentences .ja{color:var(--ja);font-size:13px}.player-controls{background:var(--panel-2);border-radius:8px;flex-wrap:wrap;align-items:center;gap:8px;margin:10px 0;padding:10px;display:flex}.player-controls button{color:var(--text);border:1px solid var(--border);cursor:pointer;background:0 0;border-radius:6px;padding:6px 10px;font-size:14px}.player-controls button:hover{background:var(--bg)}.player-controls button.primary,.player-controls button.on{background:var(--accent);color:#fff;border-color:var(--accent)}.player-controls select{background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:6px;margin-left:auto;padding:5px}.status-bar{align-items:center;gap:8px;margin:8px 0 14px;display:flex}.status-bar .label{color:var(--muted);font-size:13px}.status-bar button{color:var(--text);border:1px solid var(--border);cursor:pointer;background:0 0;border-radius:6px;padding:4px 10px}.status-bar button.on.ok{background:var(--ok);border-color:var(--ok);color:#052}.status-bar button.on.todo{background:var(--todo);border-color:var(--todo);color:#2a1f00}.drill-items{margin:0;padding:0;list-style:none}.drill-item{background:var(--panel-2);border:1px solid var(--border);border-left:3px solid #0000;border-radius:8px;margin-bottom:10px;padding:12px}.item-head{align-items:center;gap:8px;margin-bottom:6px;display:flex}.item-head .num{font-weight:600}.drill-item .source{padding:6px 0}.drill-item .source .en{color:var(--en)}.drill-item .source .ja{color:var(--ja);font-size:13px}.drill-item .step{grid-template-columns:auto 1fr;grid-template-areas:"cue cue""arrow result";align-items:start;gap:2px 8px;padding:4px 0;display:grid}.drill-item .step .cue{color:var(--accent);word-break:break-word;grid-area:cue;font-family:JetBrains Mono,Consolas,monospace;font-size:13px}.drill-item .step .arrow{color:var(--muted);grid-area:arrow}.drill-item .step .result{grid-area:result}.drill-item .step .result .en{color:var(--en)}.drill-item .step .result .ja{color:var(--ja);font-size:13px}.drill-empty{color:var(--muted);text-align:center;padding:16px}.en{transition:filter .18s}.en.blurred{filter:blur(5px);cursor:pointer;-webkit-user-select:none;user-select:none}.en.blurred:hover{filter:blur(2px)}@media (width<=800px){.app{padding:12px}.app-header h1{font-size:16px}.hamburger{display:inline-flex}.app-body{grid-template-columns:1fr}.sidebar{z-index:10;border-radius:0;width:280px;height:100dvh;max-height:none;transition:transform .22s;position:fixed;top:0;left:0;transform:translate(-100%)}.app-body.drawer-open .sidebar{transform:translate(0)}.app-body.drawer-open .drawer-backdrop{display:block}.sidebar-header .close-btn{justify-content:center;align-items:center;display:inline-flex}}