:root{--navy:#1e3a5f;--navy2:#2b5080;--navy3:#0d2240;--teal:#7ececa;--teal-lt:#b8e8e5;--teal-bg:#eaf6f6;--gold:#e8b84b;--gold-lt:#f5d98a;--gold-bg:#fdf6e0;--white:#ffffff;--offwhite:#f5f7fa;--border:#dde3ea;--text:#1a2a3a;--text2:#4a6278;--gray2:#b0b8c4;--gray3:#7a8898;--shadow:rgba(30,58,95,.10);--shadow2:rgba(30,58,95,.20);--nc-C:#f4a7b9;--nc-Cs:#f7b89e;--nc-D:#e8d484;--nc-Ds:#d4c47e;--nc-E:#f2e060;--nc-F:#a8d8a8;--nc-Fs:#8ec89a;--nc-G:#a4d0e8;--nc-Gs:#90c0e0;--nc-A:#b0b0e8;--nc-As:#c0a8e0;--nc-B:#d4a8d8;--rb-C:#ff6b6b;--rb-Cs:#ff8e53;--rb-D:#ffd32a;--rb-Ds:#c4e538;--rb-E:#0be881;--rb-F:#00d2d3;--rb-Fs:#54a0ff;--rb-G:#5f27cd;--rb-Gs:#a29bfe;--rb-A:#fd79a8;--rb-As:#e17055;--rb-B:#fdcb6e;--header-h:58px;--bottom-h:64px;--keys-h:100px;--canvas-h:calc(100vh - var(--header-h) - var(--bottom-h) - var(--keys-h))}*{margin:0;padding:0;box-sizing:border-box}html{font-size:15px}body{background:var(--offwhite);color:var(--text);font-family:'DM Sans','Noto Sans TC',sans-serif;min-height:100vh;overflow-x:hidden}header{background:var(--white);border-bottom:1.5px solid var(--border);padding:0 32px;height:var(--header-h);display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:200;box-shadow:0 2px 14px var(--shadow)}.logo{display:flex;align-items:center;gap:11px}.logo-icon{width:34px;height:34px;background:var(--navy);border-radius:9px;display:flex;align-items:center;justify-content:center;color:var(--teal);font-size:.9rem}.logo-text{font-family:'DM Serif Display',serif;font-size:1.05rem;color:var(--navy);line-height:1.2}.logo-text small{display:block;font-family:'DM Sans',sans-serif;font-size:.58rem;font-weight:600;color:var(--gray3);letter-spacing:.1em;text-transform:uppercase}.hud{display:flex;align-items:center;gap:16px}.hud-stat{display:flex;flex-direction:column;align-items:center}.hud-val{font-family:'DM Serif Display',serif;font-size:1.5rem;color:var(--navy);line-height:1}.hud-lbl{font-size:.55rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--gray3)}.hud-div{width:1px;height:32px;background:var(--border)}.combo-badge{padding:4px 14px;border-radius:20px;background:var(--navy);color:var(--white);font-family:'DM Serif Display',serif;font-size:1rem;display:flex;align-items:center;gap:7px;transition:all .15s}.combo-badge.hot{background:var(--gold);color:var(--navy)}.combo-badge i{font-size:.75rem;color:var(--teal)}.combo-badge.hot i{color:var(--navy)}main{max-width:1300px;margin:0 auto;padding:22px 28px 40px}.tab-nav{display:flex;gap:6px;margin-bottom:18px;border-bottom:2px solid var(--border);padding-bottom:0}.tab-btn{display:flex;align-items:center;gap:8px;padding:10px 22px;border:1.5px solid transparent;border-bottom:none;border-radius:10px 10px 0 0;background:0 0;color:var(--gray3);font-family:'DM Sans',sans-serif;font-size:.82rem;font-weight:600;cursor:pointer;transition:all .16s;position:relative;bottom:-2px}.tab-btn:hover{color:var(--navy2);background:rgba(30,58,95,.04)}.tab-btn.active{background:var(--white);border-color:var(--border);border-bottom-color:var(--white);color:var(--navy);box-shadow:0 -2px 10px var(--shadow)}.tab-btn i{font-size:.8rem}#setupScreen{display:flex;flex-direction:column;gap:18px}.setup-hero{background:linear-gradient(135deg,var(--navy) 0,var(--navy2) 100%);border-radius:16px;padding:36px 48px;display:flex;align-items:center;justify-content:space-between;gap:24px;box-shadow:0 8px 32px var(--shadow2);position:relative;overflow:hidden}.setup-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 80% 50%,rgba(126,206,202,.1) 0,transparent 60%);pointer-events:none}.setup-hero-text{position:relative;z-index:1}.setup-hero-text h1{font-family:'DM Serif Display',serif;font-size:2.4rem;color:var(--white);line-height:1.15;margin-bottom:10px}.setup-hero-text h1 em{color:var(--teal);font-style:normal}.setup-hero-text p{font-size:.88rem;color:var(--teal-lt);line-height:1.7;max-width:420px}.setup-hero-art{width:160px;height:160px;flex-shrink:0;display:flex;align-items:center;justify-content:center;position:relative;z-index:1}.hero-ring{position:absolute;border-radius:50%;border:2px solid rgba(126,206,202,.3);animation:spin 8s linear infinite}.hero-ring:first-child{width:140px;height:140px}.hero-ring:nth-child(2){width:110px;height:110px;animation-direction:reverse;animation-duration:5s}.hero-ring:nth-child(3){width:80px;height:80px;animation-duration:12s}@keyframes spin{to{transform:rotate(360deg)}}.hero-icon{width:60px;height:60px;background:var(--teal);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.6rem;color:var(--navy3);box-shadow:0 0 0 8px rgba(126,206,202,.15);z-index:1}.setup-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.setup-start-row{margin-top:4px}.card{background:var(--white);border:1.5px solid var(--border);border-radius:14px;padding:20px;box-shadow:0 2px 12px var(--shadow)}.card-title{font-family:'DM Serif Display',serif;font-size:1rem;color:var(--navy);margin-bottom:4px;display:flex;align-items:center;gap:7px}.card-title i{color:var(--teal);font-size:.85rem}.card-sub{font-size:.73rem;color:var(--gray3);margin-bottom:14px;line-height:1.6}.upload-zone{border:2px dashed var(--border);border-radius:10px;padding:28px 16px;text-align:center;cursor:pointer;transition:all .2s;background:var(--offwhite);position:relative;overflow:hidden}.upload-zone.drag,.upload-zone:hover{border-color:var(--teal);background:var(--teal-bg)}.upload-zone.loaded{border-color:var(--navy);border-style:solid;background:linear-gradient(135deg,#eaf6f6,#f0f7ff)}.upload-icon{width:46px;height:46px;background:var(--navy);border-radius:11px;display:flex;align-items:center;justify-content:center;margin:0 auto 10px;color:var(--teal);font-size:1.1rem;transition:all .2s}.upload-zone.loaded .upload-icon{background:var(--teal);color:var(--navy)}.upload-title{font-size:.85rem;font-weight:600;color:var(--text2);margin-bottom:3px}.upload-hint{font-size:.7rem;color:var(--gray3)}.upload-info{margin-top:10px;display:flex;gap:6px;justify-content:center;flex-wrap:wrap}.tag{display:inline-flex;align-items:center;gap:3px;font-size:.6rem;font-weight:600;letter-spacing:.05em;padding:2px 8px;border-radius:14px}.tag-teal{background:var(--teal-bg);color:var(--navy2);border:1px solid var(--teal-lt)}.tag-gold{background:var(--gold-bg);color:#8a6200;border:1px solid var(--gold-lt)}.tag-navy{background:var(--navy);color:var(--white)}.tag-green{background:#e8f8f0;color:#1a7a4a;border:1px solid #a8d8b8}.instr-list{display:flex;flex-direction:column;gap:8px}.instr-item{display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:10px;border:1.5px solid var(--border);background:var(--offwhite);cursor:pointer;transition:all .16s}.instr-item:hover{border-color:var(--navy2);background:var(--white)}.instr-item.active{border-color:var(--navy);background:var(--navy);color:var(--white)}.instr-icon{width:36px;height:36px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:.95rem;background:rgba(126,206,202,.15);color:var(--teal);flex-shrink:0;transition:all .16s}.instr-item.active .instr-icon{background:rgba(126,206,202,.25);color:var(--teal-lt)}.instr-name{font-weight:600;font-size:.84rem}.instr-desc{font-size:.68rem;color:var(--gray3)}.instr-item.active .instr-desc{color:var(--teal-lt)}.range-row{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:10px}.range-label{font-size:.65rem;color:var(--gray3);margin-bottom:3px}.range-sel{width:100%;background:var(--offwhite);border:1.5px solid var(--border);color:var(--text);padding:7px 10px;border-radius:7px;font-family:'DM Sans',sans-serif;font-size:.78rem}.range-sel:focus{outline:0;border-color:var(--teal)}.midi-connect-wrap{margin-top:12px;padding-top:12px;border-top:1px solid var(--border)}.section-label{font-size:.62rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--gray3);margin-bottom:7px}.midi-btn{width:100%;padding:7px;border:1.5px solid var(--border);background:var(--offwhite);border-radius:8px;cursor:pointer;font-family:'DM Sans',sans-serif;font-size:.76rem;font-weight:600;color:var(--text2);display:flex;align-items:center;justify-content:center;gap:7px;transition:all .15s}.midi-btn:hover{border-color:var(--navy2)}.midi-dot{width:8px;height:8px;border-radius:50%;background:var(--gray2);display:inline-block;margin-left:5px;vertical-align:middle;transition:background .2s}.midi-dot.connected{background:var(--teal);box-shadow:0 0 0 3px var(--teal-bg)}.midi-status-txt{font-size:.65rem;color:var(--gray3);margin-top:5px;text-align:center}.diff-row{display:flex;gap:8px}.diff-btn{flex:1;padding:10px 6px;border-radius:9px;border:1.5px solid var(--border);background:var(--offwhite);cursor:pointer;text-align:center;transition:all .15s}.diff-btn:hover{border-color:var(--navy2);background:var(--white)}.diff-btn.active{border-color:var(--navy);background:var(--navy)}.diff-btn .diff-icon{font-size:.85rem;display:block;margin-bottom:4px;color:var(--teal)}.diff-btn .diff-name{font-size:.72rem;font-weight:700;color:var(--text2)}.diff-btn .diff-hint{font-size:.6rem;color:var(--gray3)}.diff-btn.active .diff-hint,.diff-btn.active .diff-icon,.diff-btn.active .diff-name{color:var(--white)}.diff-btn.active .diff-icon{color:var(--teal-lt)}.slider-row{margin-bottom:16px}.slider-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}.slider-label{font-size:.62rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--gray3)}.slider-val{font-size:.76rem;font-weight:700;color:var(--navy)}input[type=range]{-webkit-appearance:none;width:100%;height:4px;background:var(--border);border-radius:2px}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;border-radius:50%;background:var(--navy);cursor:pointer;border:2px solid #fff;box-shadow:0 1px 4px var(--shadow2)}input[type=range]::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:var(--navy);cursor:pointer;border:2px solid #fff}.start-btn{width:100%;padding:16px;border:none;border-radius:12px;background:linear-gradient(135deg,var(--navy) 0,var(--navy2) 100%);color:var(--white);font-family:'DM Serif Display',serif;font-size:1.2rem;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:10px;box-shadow:0 4px 18px var(--shadow2);transition:all .18s;letter-spacing:.03em}.start-btn:hover{transform:translateY(-2px);box-shadow:0 8px 28px var(--shadow2)}.start-btn:disabled{opacity:.4;cursor:not-allowed;transform:none}.start-btn i{color:var(--teal)}.music-opt{display:flex;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--border)}.music-opt:last-of-type{border-bottom:none}.music-opt-name{font-size:.84rem;font-weight:600;color:var(--text)}.music-opt-desc{font-size:.67rem;color:var(--gray3);margin-top:1px}.sw{position:relative;display:inline-block;width:40px;height:23px;flex-shrink:0}.sw input{opacity:0;width:0;height:0}.sw-slider{position:absolute;cursor:pointer;inset:0;background:var(--gray2);border-radius:23px;transition:background .2s}.sw-slider:before{content:'';position:absolute;width:17px;height:17px;left:3px;bottom:3px;background:#fff;border-radius:50%;transition:transform .2s;box-shadow:0 1px 4px rgba(0,0,0,.25)}.sw input:checked+.sw-slider{background:var(--teal)}.sw input:checked+.sw-slider:before{transform:translateX(17px)}.sw input:disabled+.sw-slider{opacity:.4;cursor:not-allowed}.ai-gen-btn{width:100%;margin-top:13px;padding:9px 12px;border:1.5px solid var(--teal-lt);border-radius:9px;background:var(--teal-bg);color:var(--navy2);font-family:'DM Sans',sans-serif;font-size:.78rem;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:7px;transition:all .16s}.ai-gen-btn:hover:not(:disabled){background:var(--teal-lt);border-color:var(--teal);transform:translateY(-1px)}.ai-gen-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.ai-mode-row{display:flex;gap:6px;margin:10px 0}.ai-mode-pill{flex:1;padding:7px 4px;border-radius:8px;border:1.5px solid var(--border);background:var(--offwhite);cursor:pointer;text-align:center;transition:all .14s;font-size:.68rem;font-weight:600;color:var(--text2)}.ai-mode-pill:hover{border-color:var(--navy2);background:var(--white)}.ai-mode-pill.active{border-color:var(--teal);background:var(--teal-bg);color:var(--navy2)}.pill-icon{display:block;font-size:.8rem;margin-bottom:3px;color:var(--teal)}.vol-row{display:flex;align-items:center;gap:8px;margin-top:4px}.vol-row i{color:var(--gray3);font-size:.75rem;width:12px}.vol-slider{flex:1}.vol-val{font-size:.65rem;color:var(--navy);font-weight:700;min-width:28px}.ai-status{margin-top:9px;font-size:.67rem;text-align:center;color:var(--gray3);padding:5px 8px;border-radius:6px;transition:all .25s;min-height:26px;display:flex;align-items:center;justify-content:center;gap:5px}.ai-status[data-state=loading]{color:var(--navy2);background:var(--teal-bg);animation:aiStatusPulse 1.3s ease-in-out infinite}.ai-status[data-state=ready]{color:#1a7a4a;background:#e8f8f0;border:1px solid #a8d8b8}.ai-status[data-state=error]{color:#a94442;background:#fdf0f0;border:1px solid #f5c6c6}@keyframes aiStatusPulse{0%,100%{opacity:1}50%{opacity:.45}}#chordScreen{display:flex;flex-direction:column;gap:18px}.chord-hero{background:linear-gradient(135deg,var(--navy) 0,var(--navy2) 100%);border-radius:14px;padding:28px 40px;display:flex;align-items:center;justify-content:space-between;gap:20px;box-shadow:0 6px 24px var(--shadow2);position:relative;overflow:hidden}.chord-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 80% 50%,rgba(232,184,75,.1) 0,transparent 60%);pointer-events:none}.chord-hero-text{position:relative;z-index:1}.chord-hero-text h2{font-family:'DM Serif Display',serif;font-size:1.8rem;color:var(--white);margin-bottom:6px}.chord-hero-text h2 i{color:var(--gold)}.chord-hero-text p{font-size:.84rem;color:var(--teal-lt);line-height:1.65;max-width:460px}.chord-hero-icon{width:56px;height:56px;background:rgba(232,184,75,.2);border:2px solid rgba(232,184,75,.4);border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:1.6rem;color:var(--gold);z-index:1;flex-shrink:0}.chord-layout{display:grid;grid-template-columns:300px 1fr;gap:14px;align-items:start}.chord-settings{display:flex;flex-direction:column;gap:12px}.settings-section{background:var(--white);border:1.5px solid var(--border);border-radius:12px;padding:16px;box-shadow:0 2px 8px var(--shadow)}.settings-section-title{font-size:.62rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--navy);margin-bottom:12px;display:flex;align-items:center;gap:6px}.settings-section-title i{color:var(--teal)}.setting-row{margin-bottom:12px}.setting-row:last-child{margin-bottom:0}.setting-label{font-size:.72rem;font-weight:600;color:var(--text2);margin-bottom:5px;display:block}.setting-select{width:100%;background:var(--offwhite);border:1.5px solid var(--border);color:var(--text);padding:7px 10px;border-radius:7px;font-family:'DM Sans',sans-serif;font-size:.78rem;cursor:pointer}.setting-select:focus{outline:0;border-color:var(--teal)}.quality-checks{display:flex;flex-direction:column;gap:6px}.quality-check{display:flex;align-items:center;gap:8px;font-size:.76rem;color:var(--text);cursor:pointer}.quality-check input[type=checkbox]{width:15px;height:15px;accent-color:var(--teal);cursor:pointer}.chord-analyze-btn{width:100%;padding:12px;border:1.5px solid var(--gold-lt);border-radius:10px;background:var(--gold-bg);color:var(--navy);font-family:'DM Serif Display',serif;font-size:1rem;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:all .18s;box-shadow:0 2px 10px var(--shadow)}.chord-analyze-btn:hover:not(:disabled){background:var(--gold-lt);transform:translateY(-1px);box-shadow:0 6px 18px var(--shadow2)}.chord-analyze-btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}.chord-results-panel{background:var(--white);border:1.5px solid var(--border);border-radius:12px;overflow:hidden;box-shadow:0 2px 12px var(--shadow)}.chord-results-empty{padding:60px 24px;text-align:center;color:var(--gray3);font-size:.85rem;line-height:1.8}.chord-results-empty i{font-size:2.2rem;display:block;margin-bottom:12px;opacity:.35;color:var(--navy)}.chord-key-banner{background:linear-gradient(135deg,rgba(30,58,95,.06) 0,rgba(126,206,202,.06) 100%);border-bottom:1.5px solid var(--border);padding:16px 20px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px}.key-name{font-family:'DM Serif Display',serif;font-size:1.5rem;color:var(--navy)}.key-label{font-size:.62rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--gray3)}.key-meta{display:flex;gap:14px;align-items:center;flex-wrap:wrap}.key-stat{font-size:.72rem;color:var(--text2)}.key-stat span{color:var(--navy);font-weight:700}.chord-section{padding:16px 20px;border-bottom:1.5px solid var(--border)}.chord-section:last-child{border-bottom:none}.chord-section-title{font-size:.62rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--gray3);margin-bottom:10px}.chord-timeline{display:flex;flex-wrap:wrap;gap:7px}.chord-pill{padding:8px 14px;border-radius:10px;border:1.5px solid var(--border);background:var(--offwhite);cursor:default;transition:all .15s;display:flex;flex-direction:column;align-items:center;gap:2px;min-width:58px}.chord-pill:hover{border-color:var(--navy2);transform:translateY(-1px)}.chord-pill .cp-symbol{font-family:'DM Serif Display',serif;font-size:.95rem;color:var(--navy);line-height:1}.chord-pill .cp-roman{font-size:.58rem;font-weight:700;letter-spacing:.06em;color:var(--gray3);text-transform:uppercase}.chord-pill .cp-time{font-size:.52rem;color:var(--gray2);font-family:'DM Sans',monospace}.chord-pill[data-quality=major]{border-color:rgba(126,206,202,.5);background:var(--teal-bg)}.chord-pill[data-quality=minor]{border-color:rgba(30,58,95,.3);background:rgba(30,58,95,.06)}.chord-pill[data-quality=dominant7]{border-color:rgba(232,184,75,.5);background:var(--gold-bg)}.chord-pill[data-quality=major7]{border-color:var(--teal-lt);background:var(--teal-bg)}.chord-pill[data-quality=minor7]{border-color:rgba(30,58,95,.25);background:rgba(30,58,95,.04)}.chord-pill[data-quality=diminished]{border-color:rgba(231,76,60,.3);background:#fdf0f0}.chord-pill[data-quality=augmented]{border-color:rgba(155,89,182,.3);background:#f8f0fd}.chord-pill[data-quality=sus]{border-color:rgba(46,204,113,.3);background:#e8f8f0}.chord-freq-list{display:flex;flex-direction:column;gap:6px}.chord-freq-row{display:flex;align-items:center;gap:10px}.cfreq-name{font-size:.78rem;font-weight:700;color:var(--text);min-width:58px}.cfreq-bar-wrap{flex:1;height:8px;background:var(--border);border-radius:4px;overflow:hidden}.cfreq-bar{height:100%;border-radius:4px;transition:width .4s ease-out}.cfreq-count{font-size:.68rem;color:var(--gray3);min-width:28px;text-align:right}.chord-status{font-size:.72rem;text-align:center;color:var(--gray3);padding:7px;border-radius:8px;transition:all .25s;display:flex;align-items:center;justify-content:center;gap:6px;margin-top:8px}.chord-status[data-state=loading]{color:var(--navy2);background:var(--teal-bg);animation:aiStatusPulse 1.2s ease-in-out infinite}.chord-status[data-state=done]{color:#1a7a4a;background:#e8f8f0;border:1px solid #a8d8b8}.chord-status[data-state=error]{color:#a94442;background:#fdf0f0;border:1px solid #f5c6c6}#gameScreen{display:none;position:fixed;left:0;right:0;top:var(--header-h);bottom:0;z-index:100;background:#0b1829}#gameScreen.active{display:block}.stage-wrap{position:absolute;left:0;right:0;top:0;bottom:var(--bottom-h);background:#0b1829;overflow:hidden}.stage-canvas-wrap{position:absolute;left:0;right:0;top:0;height:var(--canvas-h);overflow:hidden}#gameCanvas{display:block;width:100%;height:100%}.keys-wrap{position:absolute;left:0;right:0;bottom:0;height:var(--keys-h);background:#101e33;overflow:hidden}.piano-row{display:flex;position:relative;height:90px;width:100%}.pkey{position:relative;cursor:pointer;border-radius:0 0 5px 5px;user-select:none;display:flex;align-items:flex-end;justify-content:center;padding-bottom:4px;transition:filter .06s,transform .06s;flex-shrink:0}.pkey.white{height:90px;z-index:1;border:1px solid rgba(0,0,0,.22);box-shadow:0 3px 6px rgba(0,0,0,.28),inset 0 -2px 3px rgba(0,0,0,.08)}.pkey.black{height:55px;z-index:2;position:absolute;background:linear-gradient(180deg,#28203a,#18102a);border:1px solid #060410;box-shadow:0 4px 10px rgba(0,0,0,.6)}.pkey.white.lit{filter:brightness(1.4) saturate(1.3);animation:whiteKeyGlow .35s ease-out}.pkey.black.lit{background:linear-gradient(180deg,var(--navy2),var(--navy));filter:brightness(1.5)}.pkey.white.hit{transform:translateY(2px);filter:brightness(1.15)}.pkey.black.hit{transform:translateY(2px);filter:brightness(.9)}.pkey.white.miss{filter:brightness(.7) hue-rotate(340deg)}.pkey-lbl{font-size:.44rem;font-weight:700;color:rgba(0,0,0,.3);pointer-events:none;font-family:'DM Sans',monospace}.oct-mk{position:absolute;bottom:3px;left:2px;font-size:.44rem;font-weight:700;color:rgba(0,0,0,.4);font-family:'DM Sans',monospace;pointer-events:none;z-index:3}.rb-row{display:flex;align-items:flex-end;padding:4px 2px;width:100%;height:100%;gap:0}.rb-bar{cursor:pointer;border-radius:5px 5px 3px 3px;position:relative;display:flex;align-items:flex-end;justify-content:center;padding-bottom:4px;box-shadow:0 3px 10px rgba(0,0,0,.4),inset 0 1px 0 rgba(255,255,255,.25);transition:filter .06s,transform .06s;user-select:none;flex:1;margin:0 1px}.rb-bar:hover{filter:brightness(1.1)}.rb-bar.lit{filter:brightness(1.6) saturate(1.3);animation:rbBarGlow .3s ease-out}.rb-bar.hit{transform:translateY(2px);filter:brightness(1.2)}.rb-bar.miss{filter:brightness(.5)}.rb-lbl{font-size:.44rem;font-weight:700;color:rgba(255,255,255,.75);font-family:'DM Sans',monospace}.bottom-bar{position:absolute;left:0;right:0;bottom:0;height:var(--bottom-h);background:rgba(14,26,48,.97);border-top:1px solid rgba(255,255,255,.1);backdrop-filter:blur(12px);padding:0 16px;display:flex;align-items:center;gap:12px;z-index:10}.bb-prog{flex:1;min-width:0;display:flex;flex-direction:column;gap:3px}.bb-song-name{font-family:'DM Serif Display',serif;font-size:.82rem;color:rgba(255,255,255,.9);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1}.prog-track{height:6px;background:rgba(255,255,255,.1);border-radius:3px;overflow:hidden}.prog-fill{height:100%;background:linear-gradient(90deg,var(--navy2),var(--teal),var(--navy2));background-size:400px 100%;border-radius:3px;width:0%;transition:width .22s;animation:progShimmer 3s linear infinite}.bb-time{display:flex;justify-content:space-between;font-size:.6rem;color:rgba(255,255,255,.4);font-family:'DM Sans',monospace}.bb-acc{display:flex;gap:6px;align-items:center;flex-shrink:0}.acc-chip{display:flex;flex-direction:column;align-items:center;min-width:34px}.acc-chip .ac-val{font-family:'DM Serif Display',serif;font-size:.95rem;line-height:1}.acc-chip .ac-lbl{font-size:.48rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;opacity:.6;margin-top:1px}.bb-div{width:1px;height:36px;background:rgba(255,255,255,.1);flex-shrink:0}.bb-ctrls{display:flex;gap:6px;align-items:center;flex-shrink:0}.bb-btn{display:flex;align-items:center;gap:5px;padding:7px 13px;border-radius:8px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.07);cursor:pointer;font-family:'DM Sans',sans-serif;font-size:.72rem;font-weight:600;color:rgba(255,255,255,.8);transition:all .14s;white-space:nowrap}.bb-btn:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.22)}.bb-icon{font-size:1rem;line-height:1;display:inline-block;color:var(--teal);font-style:normal}.bb-btn.danger{border-color:rgba(231,76,60,.3);color:rgba(231,76,60,.9)}.bb-btn.danger:hover{background:rgba(231,76,60,.15)}.bb-btn.danger .bb-icon{color:#e74c3c}.bb-btn.pause-active .bb-icon{color:var(--gold)}#resultScreen{display:none}.result-card{background:linear-gradient(135deg,var(--navy) 0,var(--navy2) 60%,#1a4a7a 100%);border-radius:20px;padding:48px;text-align:center;box-shadow:0 12px 48px var(--shadow2);position:relative;overflow:hidden}.result-card::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 30% 30%,rgba(126,206,202,.12) 0,transparent 60%),radial-gradient(circle at 70% 70%,rgba(232,184,75,.08) 0,transparent 50%)}.result-rank{font-family:'DM Serif Display',serif;font-size:5rem;color:var(--gold);text-shadow:0 0 40px rgba(232,184,75,.5);position:relative;z-index:1;line-height:1;margin-bottom:8px}.result-title{font-family:'DM Serif Display',serif;font-size:1.6rem;color:var(--white);margin-bottom:6px;position:relative;z-index:1}.result-sub{font-size:.82rem;color:var(--teal-lt);position:relative;z-index:1;margin-bottom:28px}.result-stats{display:flex;gap:20px;justify-content:center;flex-wrap:wrap;position:relative;z-index:1;margin-bottom:32px}.result-stat{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:16px 24px}.result-stat .val{font-family:'DM Serif Display',serif;font-size:2rem;color:var(--white);line-height:1}.result-stat .lbl{font-size:.6rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--teal-lt);margin-top:4px}.result-btns{display:flex;gap:10px;justify-content:center;position:relative;z-index:1}.btn{display:inline-flex;align-items:center;gap:6px;border:none;cursor:pointer;font-family:'DM Sans',sans-serif;font-weight:600;border-radius:9px;transition:all .15s;padding:10px 20px;font-size:.82rem}.btn-navy{background:var(--white);color:var(--navy)}.btn-navy:hover{background:var(--teal-lt);transform:translateY(-1px)}.btn-teal{background:rgba(126,206,202,.2);color:var(--teal-lt);border:1px solid rgba(126,206,202,.3)}.btn-teal:hover{background:rgba(126,206,202,.3)}.btn-outline{background:0 0;color:var(--white);border:1px solid rgba(255,255,255,.35)}.btn-outline:hover{background:rgba(255,255,255,.12)}.btn-gold{background:var(--gold-bg);border:1.5px solid var(--gold-lt);color:#8a6200;font-family:'DM Sans',sans-serif;font-size:.8rem;font-weight:600;padding:9px 18px;border-radius:8px;cursor:pointer;display:inline-flex;align-items:center;gap:7px;transition:all .15s}.btn-gold:hover{background:var(--gold-lt);border-color:var(--gold)}.feedback{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);pointer-events:none;z-index:999;font-family:'DM Serif Display',serif;font-size:2.8rem;font-weight:400;opacity:0;text-shadow:0 2px 20px rgba(0,0,0,.3);animation:none}@keyframes feedPerfect{0%{opacity:0;transform:translate(-50%,-68%) scale(.5);filter:brightness(2.2)}12%{opacity:1;transform:translate(-50%,-50%) scale(1.22)}28%{transform:translate(-50%,-50%) scale(1)}75%{opacity:1}100%{opacity:0;transform:translate(-50%,-40%) scale(.92)}}@keyframes feedGood{0%{opacity:0;transform:translate(-50%,-62%) scale(.65)}15%{opacity:1;transform:translate(-50%,-50%) scale(1.12)}72%{opacity:1}100%{opacity:0;transform:translate(-50%,-42%) scale(.95)}}@keyframes feedOk{0%{opacity:0;transform:translate(-50%,-55%) scale(.82)}20%{opacity:.88;transform:translate(-50%,-50%) scale(1.03)}72%{opacity:.88}100%{opacity:0;transform:translate(-50%,-47%) scale(.94)}}@keyframes feedMiss{0%{opacity:0;transform:translate(-50%,-52%) scale(1.08)}15%{opacity:.75;transform:translate(-50%,-50%) scale(.97)}70%{opacity:.75}100%{opacity:0}}.feedback[data-grade=perfect].show{animation:feedPerfect .9s ease-out forwards}.feedback[data-grade=good].show{animation:feedGood .78s ease-out forwards}.feedback[data-grade=ok].show{animation:feedOk .65s ease-out forwards}.feedback[data-grade=miss].show{animation:feedMiss .62s ease-out forwards}@keyframes feedFlash{0%{opacity:0;transform:translate(-50%,-60%) scale(.8)}15%{opacity:1;transform:translate(-50%,-50%) scale(1.08)}70%{opacity:1}100%{opacity:0;transform:translate(-50%,-40%) scale(.95)}}.feedback.show{animation:feedFlash .7s ease-out forwards}.countdown-overlay{position:fixed;inset:0;background:rgba(10,20,40,.85);display:flex;align-items:center;justify-content:center;z-index:500;backdrop-filter:blur(4px)}.countdown-num{font-family:'DM Serif Display',serif;font-size:9rem;color:var(--white);text-shadow:0 0 60px rgba(126,206,202,.5);animation:countScale .9s ease-out}@keyframes countScale{0%{transform:scale(1.4);opacity:0}30%{opacity:1}80%{transform:scale(.9)}100%{transform:scale(1);opacity:0}}@keyframes progShimmer{0%{background-position:-400px 0}100%{background-position:400px 0}}@keyframes comboPop{0%{transform:scale(1)}35%{transform:scale(1.32)}65%{transform:scale(.95)}100%{transform:scale(1)}}.combo-badge.pop{animation:comboPop .32s cubic-bezier(.36,.07,.19,.97)}@keyframes hudScorePop{0%{transform:scale(1.45);color:var(--gold)}60%{transform:scale(1.05)}100%{transform:scale(1);color:var(--navy)}}.hud-val.pop{animation:hudScorePop .38s cubic-bezier(.36,.07,.19,.97)}.screen-flash{position:fixed;inset:0;pointer-events:none;z-index:998;opacity:0;animation:screenFlashFade .48s ease-out forwards}@keyframes screenFlashFade{0%{opacity:1}100%{opacity:0}}@keyframes whiteKeyGlow{0%{box-shadow:0 0 0 0 rgba(255,255,255,.7),0 3px 6px rgba(0,0,0,.28)}60%{box-shadow:0 0 18px 6px rgba(200,230,255,.5),0 3px 6px rgba(0,0,0,.28)}100%{box-shadow:0 0 0 0 rgba(200,230,255,0),0 3px 6px rgba(0,0,0,.28)}}@keyframes rbBarGlow{0%{box-shadow:0 3px 10px rgba(0,0,0,.4),inset 0 1px 0 rgba(255,255,255,.25)}40%{box-shadow:0 0 20px 8px rgba(255,255,255,.35),0 3px 10px rgba(0,0,0,.4),inset 0 1px 0 rgba(255,255,255,.4)}100%{box-shadow:0 3px 10px rgba(0,0,0,.4),inset 0 1px 0 rgba(255,255,255,.25)}}::-webkit-scrollbar{height:4px;width:4px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--gray2);border-radius:2px}.sugg-list{display:flex;flex-direction:column;gap:14px;padding:16px 20px}.sugg-card{background:var(--white);border:1.5px solid var(--border);border-radius:12px;padding:18px;box-shadow:0 2px 10px var(--shadow)}.sugg-card-header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:14px}.sugg-card-name{font-family:'DM Serif Display',serif;font-size:1.05rem;color:var(--navy);margin-bottom:3px}.sugg-card-en{font-size:.72rem;font-weight:700;color:var(--teal);margin-bottom:4px;letter-spacing:.04em}.sugg-card-desc{font-size:.72rem;color:var(--gray3);line-height:1.5}.sugg-badge{padding:4px 10px;border-radius:20px;border:1.5px solid;font-size:.65rem;font-weight:700;white-space:nowrap;flex-shrink:0}.sugg-table{width:100%;border-collapse:collapse;margin-bottom:12px;font-size:.8rem}.sugg-table th{font-size:.6rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--gray3);padding:6px 10px;border-bottom:1.5px solid var(--border);text-align:left}.sugg-table td{padding:8px 10px;border-bottom:1px solid var(--border);color:var(--text2)}.sugg-table tr:last-child td{border-bottom:none}.sugg-table td:first-child{font-weight:700;color:var(--navy);font-size:.88rem}.sugg-table td:nth-child(2){font-family:'DM Serif Display',serif;color:var(--teal);font-size:.9rem}.sugg-actions{display:flex;gap:8px;margin-top:4px}.sugg-btn{flex:1;padding:8px 12px;border-radius:8px;cursor:pointer;font-family:'DM Sans',sans-serif;font-size:.76rem;font-weight:600;display:flex;align-items:center;justify-content:center;gap:7px;transition:all .16s;border:1.5px solid}.sugg-btn-audio{background:var(--teal-bg);border-color:var(--teal-lt);color:var(--navy2)}.sugg-btn-audio:hover{background:var(--teal-lt);border-color:var(--teal)}.sugg-btn-excel{background:var(--gold-bg);border-color:var(--gold-lt);color:#8a6200}.sugg-btn-excel:hover{background:var(--gold-lt);border-color:var(--gold)}.sugg-btn:disabled{opacity:.45;cursor:not-allowed}.sugg-export-all{padding:0 20px 16px}.sugg-export-all .sugg-btn{flex:none;width:100%;padding:10px 20px;font-size:.82rem;background:var(--navy);border-color:var(--navy2);color:#fff}.sugg-export-all .sugg-btn:hover{background:var(--navy2)}.sugg-key-info{padding:12px 20px 0;display:flex;align-items:center;gap:10px;flex-wrap:wrap}.sugg-key-tag{background:var(--teal-bg);border:1.5px solid var(--teal-lt);border-radius:8px;padding:5px 14px;font-size:.8rem;font-weight:600;color:var(--navy2)}.sugg-key-meta{font-size:.75rem;color:var(--gray3)}.sugg-empty{text-align:center;padding:32px 20px;color:var(--gray3);font-size:.85rem}.sugg-empty i{display:block;font-size:2rem;margin-bottom:10px;opacity:.4}@media(max-width:1000px){.chord-layout{grid-template-columns:1fr}}@media(max-width:900px){.setup-grid{grid-template-columns:1fr}.setup-hero{flex-direction:column;padding:28px}header{padding:0 16px}main{padding:14px 16px 80px}.chord-hero{flex-direction:column;padding:20px}.chord-settings{flex-direction:row;flex-wrap:wrap}.settings-section{flex:1;min-width:240px}.sugg-actions{flex-direction:column}}#resultScreen{overflow-y:auto;flex-direction:column;align-items:center;padding:30px 16px 60px}#resultScreen .result-card{width:100%;max-width:520px;flex-shrink:0}#resultReport{width:100%;max-width:860px;margin-top:18px;background:#fff;border:1px solid #dde3ea;border-radius:14px;overflow:hidden;box-shadow:0 8px 32px rgba(0,0,0,.35)}.rd-panel-title{padding:12px 18px;background:var(--navy);font-family:'DM Serif Display',serif;font-size:.95rem;color:var(--teal-lt);display:flex;align-items:center;gap:10px;border-bottom:none}.rd-panel-title span{font-family:'DM Sans',sans-serif;font-size:.78rem;color:rgba(255,255,255,.55)}.rd-hdr-btn{padding:5px 12px;border-radius:6px;font-size:.7rem;font-weight:700;cursor:pointer;border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.1);color:rgba(255,255,255,.85);font-family:'DM Sans',sans-serif;display:inline-flex;align-items:center;gap:5px;transition:all .14s}.rd-hdr-btn:hover{background:rgba(255,255,255,.2);border-color:rgba(255,255,255,.45)}.rd-hdr-btn-pdf{border-color:rgba(255,120,120,.45);color:#faa;background:rgba(200,50,50,.18)}.rd-hdr-btn-pdf:hover{background:rgba(200,50,50,.3)}.rd-dist{padding:14px 20px 8px;display:flex;flex-direction:column;gap:7px;background:#f8f9fb;border-bottom:1px solid #eef0f3}.rd-bar-row{display:flex;align-items:center;gap:10px}.rd-bar-lbl{width:62px;font-size:.65rem;font-weight:700;letter-spacing:.06em;color:var(--text2)}.rd-bar-track{flex:1;height:8px;background:#e5e9ee;border-radius:4px;overflow:hidden}.rd-bar-fill{height:100%;border-radius:4px;transition:width .6s ease}.rd-bar-cnt{width:72px;font-size:.7rem;color:var(--navy2);text-align:right;font-weight:600}.rd-bar-cnt span{color:var(--gray3);margin-left:4px;font-weight:400}.rd-table-wrap{overflow-x:auto;padding:0}.rd-table{width:100%;border-collapse:collapse;font-size:.76rem}.rd-table th{padding:8px 12px;text-align:left;font-size:.6rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--gray3);background:#f0f4f8;border-bottom:2px solid #dde3ea}.rd-table td{padding:7px 12px;border-bottom:1px solid #eef0f3;color:var(--text)}.rd-table tbody tr:hover{background:#f5f8fc}.rd-row-perfect td{color:var(--text)}.rd-row-good td{color:var(--text2)}.rd-row-ok td{color:var(--text2)}.rd-row-miss td{color:var(--gray2)}.rd-i{color:var(--gray2)!important;font-size:.66rem}.rd-n{font-weight:700;font-family:'DM Sans',monospace;color:var(--navy)!important}.rd-t{color:var(--gray3)!important;font-size:.7rem}.rd-chk{color:#00a896}.rd-x{color:#c0392b}.rd-badge{padding:2px 7px;border-radius:4px;font-size:.6rem;font-weight:700;letter-spacing:.04em}.rd-badge-perfect{background:#e0faf6;color:#00a896;border:1px solid #b2ece4}.rd-badge-good{background:#e5f2fb;color:#2780b5;border:1px solid #b8d9f0}.rd-badge-ok{background:#fff8e0;color:#a07800;border:1px solid #f0d880}.rd-badge-miss{background:#fdecea;color:#c0392b;border:1px solid #f5bcb8}.rd-off-ok{color:#00a896;font-size:.72rem;font-weight:600}.rd-off-late{color:#c49a00;font-size:.72rem;font-weight:600}.rd-off-miss{color:var(--gray2);font-size:.72rem}.rd-export-row{padding:12px 20px 16px;display:flex;justify-content:flex-end;background:#f8f9fb;border-top:1px solid #eef0f3}.sugg-play-bar{height:4px;background:var(--border);border-radius:2px;margin:8px 0 0;overflow:hidden}.sugg-play-fill{height:100%;background:var(--teal);border-radius:2px;width:0;transition:width .3s linear}.sugg-play-time{font-size:.68rem;color:var(--gray3);margin-top:3px;text-align:right}.sugg-btn-play{background:var(--teal-bg);border-color:var(--teal-lt);color:var(--navy2)}.sugg-btn-play:hover{background:var(--teal-lt);border-color:var(--teal)}.sugg-btn-play.playing{background:rgba(231,76,60,.1);border-color:rgba(231,76,60,.4);color:#c0392b}.sugg-btn-play.playing:hover{background:rgba(231,76,60,.18)}