*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#eef0ff;--surface:#fff;--surface2:#f5f6ff;--border:#dde0f5;--text:#1c1e2e;--muted:#7880a4;--accent:#6366f1;--accent2:#8b5cf6;--yellow:#f59e0b;--lv1:#16a34a;--lv2:#d97706;--lv3:#dc2626;--lv4:#7c3aed;--lv5:#ea580c;--r:14px}body{background:var(--bg);color:var(--text);background-image:radial-gradient(70% 40% at 20% 0,#6366f11f 0%,#0000 55%),radial-gradient(50% 35% at 90% 100%,#8b5cf61a 0%,#0000 50%);flex-direction:column;min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;display:flex}header{border-bottom:1px solid var(--border);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);z-index:10;background:#ffffffd9;justify-content:space-between;align-items:center;padding:14px 20px;display:flex;position:sticky;top:0;box-shadow:0 1px 12px #6366f114}.logo{align-items:center;gap:10px;text-decoration:none;display:flex}.logo-mark{background:linear-gradient(135deg, var(--accent), var(--accent2));color:#fff;border-radius:9px;justify-content:center;align-items:center;width:34px;height:34px;font-size:16px;font-weight:700;display:flex;box-shadow:0 4px 14px #6366f173}.logo-text{background:linear-gradient(90deg, var(--accent), var(--accent2));-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:15px;font-weight:800}.logo-sub{color:var(--muted);font-size:11px}.nav-link{color:var(--muted);border:1px solid #0000;border-radius:8px;padding:6px 14px;font-size:13px;text-decoration:none;transition:all .18s}.nav-link:hover{background:var(--surface2);border-color:var(--border);color:var(--text)}main{flex-direction:column;flex:1;gap:22px;width:100%;max-width:960px;margin:0 auto;padding:28px 16px 56px;display:flex}.page-title{text-align:center}.page-title h1{letter-spacing:-.5px;background:linear-gradient(90deg, var(--accent) 0%, var(--accent2) 60%, #ec4899 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:clamp(24px,5vw,32px);font-weight:800}.page-title p{color:var(--muted);margin-top:6px;font-size:13px}.level-tabs{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.level-tab{border:1.5px solid var(--border);background:var(--surface);color:var(--muted);cursor:pointer;border-radius:20px;padding:7px 22px;font-size:13px;font-weight:600;transition:all .2s;box-shadow:0 1px 4px #0000000f}.level-tab:hover{color:var(--text);border-color:#b0b8e0}.level-tab[data-level=lv1].active{border-color:var(--lv1);color:var(--lv1);background:#f0fdf4;box-shadow:0 2px 12px #16a34a33}.level-tab[data-level=lv2].active{border-color:var(--lv2);color:var(--lv2);background:#fffbeb;box-shadow:0 2px 12px #d9770633}.level-tab[data-level=lv3].active{border-color:var(--lv3);color:var(--lv3);background:#fff1f2;box-shadow:0 2px 12px #dc262633}.level-tab[data-level=lv4].active{border-color:var(--lv4);color:var(--lv4);background:#faf5ff;box-shadow:0 2px 12px #7c3aed33}.level-tab[data-level=lv5].active{border-color:var(--lv5);color:var(--lv5);background:#fff7ed;box-shadow:0 2px 12px #ea580c33}.layout{grid-template-columns:200px 1fr;align-items:start;gap:16px;display:grid}@media (width<=600px){.layout{grid-template-columns:1fr}.sidebar{order:2}.player-panel{order:1}}.sidebar{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);overflow:hidden;box-shadow:0 2px 16px #6366f114}.list-title{color:var(--muted);letter-spacing:.8px;text-transform:uppercase;border-bottom:1px solid var(--border);background:var(--surface2);padding:10px 14px;font-size:11px;font-weight:700}.passage-list{max-height:420px;overflow-y:auto}.passage-item{width:100%;color:var(--muted);cursor:pointer;border:none;border-bottom:1px solid var(--border);text-align:left;background:0 0;justify-content:space-between;align-items:center;padding:9px 14px;font-size:13px;transition:background .1s;display:flex;position:relative}.passage-item:before{content:"";background:0 0;border-radius:0 2px 2px 0;width:3px;transition:background .15s;position:absolute;top:0;bottom:0;left:0}.passage-item:hover{background:var(--surface2);color:var(--text)}.passage-item:hover:before{background:#6366f14d}.passage-item.active{color:var(--accent);background:#6366f10f}.passage-item.active:before{background:var(--accent)}.pi-title{text-transform:capitalize;font-weight:500}.pi-wc{color:var(--muted);flex-shrink:0;margin-left:6px;font-size:11px}.player-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);opacity:.65;flex-direction:column;gap:16px;padding:20px;transition:opacity .3s;display:flex;box-shadow:0 2px 16px #6366f114}.player-panel.ready{opacity:1}.pass-header{justify-content:space-between;align-items:center;gap:10px;display:flex}.pass-title{color:var(--muted);text-transform:capitalize;font-size:13px;font-weight:500}.tap-hint{color:#b45309;white-space:nowrap;opacity:0;background:#fef3c7;border:1px solid #fcd34d;border-radius:10px;padding:3px 9px;font-size:11px;transition:opacity .3s}.tap-hint.visible{opacity:1}.canvas-wrap{cursor:text;border:1px solid var(--border);background:#f8f9ff;border-radius:10px;min-height:80px;max-height:420px;position:relative;overflow-y:auto}#sync-canvas{cursor:pointer;-webkit-user-select:none;user-select:none;width:100%;display:block}.loading{color:var(--muted);background:#f8f9ff;border-radius:10px;justify-content:center;align-items:center;font-size:13px;display:flex;position:absolute;inset:0}.transport{flex-direction:column;gap:10px;display:flex}.progress-row{align-items:center;gap:10px;display:flex}.time{color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap;font-size:12px}.progress-bar{background:var(--border);cursor:pointer;border-radius:3px;flex:1;height:6px;position:relative;overflow:hidden}.progress-fill{background:linear-gradient(90deg, var(--accent), var(--accent2));border-radius:3px;width:0%;height:100%;transition:width .1s linear;position:absolute;top:0;left:0}.controls{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.speed-ctrl{align-items:center;gap:4px;display:flex}.speed-btn{border:1.5px solid var(--border);background:var(--surface);width:28px;height:28px;color:var(--muted);cursor:pointer;border-radius:7px;justify-content:center;align-items:center;font-size:14px;transition:all .15s;display:flex;box-shadow:0 1px 3px #0000000f}.speed-btn:hover:not(:disabled){color:var(--accent);border-color:var(--accent)}.speed-btn:disabled{opacity:.3;cursor:default}.speed-label{color:var(--text);text-align:center;width:38px;font-size:13px;font-weight:600}.play-btn{background:linear-gradient(135deg, var(--accent), var(--accent2));color:#fff;cursor:pointer;border:none;border-radius:10px;flex:1;min-width:110px;padding:11px 20px;font-size:15px;font-weight:600;transition:all .2s;box-shadow:0 4px 18px #6366f159}.play-btn:hover{transform:translateY(-1px);box-shadow:0 8px 24px #6366f173}.play-btn:active{transform:translateY(0)}.play-btn.playing{background:var(--surface2);border:1.5px solid var(--border);color:var(--text);box-shadow:none}.play-btn:disabled{opacity:.4;cursor:default;box-shadow:none;transform:none}.key-hints{color:var(--muted);flex-wrap:wrap;gap:12px;font-size:11px;display:flex}@media (width<=480px){.key-hints{display:none}}.replay-btn{border:1.5px solid var(--border);background:var(--surface);color:var(--muted);cursor:pointer;white-space:nowrap;border-radius:10px;padding:8px 16px;font-size:13px;transition:all .18s;box-shadow:0 1px 3px #0000000f}.replay-btn:hover:not(:disabled){color:var(--accent);border-color:var(--accent)}.replay-btn:disabled{opacity:.3;cursor:default}.ja-toggle-btn{border:1.5px solid var(--border);background:var(--surface);color:var(--muted);cursor:pointer;white-space:nowrap;border-radius:10px;padding:8px 16px;font-size:13px;transition:all .18s;box-shadow:0 1px 3px #0000000f}.ja-toggle-btn:hover{color:var(--accent);border-color:var(--accent)}.ja-toggle-btn.active{border-color:var(--accent);color:var(--accent);background:#6366f114}.ja-panel{border:1px solid var(--border);border-left:3px solid var(--accent2);background:#f5f6ff;border-radius:8px;padding:14px 16px}.ja-text{color:#4b526e;font-size:14px;line-height:1.8}