:root{--plate: #EAECEE;--key: #F3F5F6;--ink: #26282A;--ink-2: #63676A;--ink-3: #96999C;--sh-dark: rgba(147, 153, 158, .55);--sh-light: rgba(255, 255, 255, .95);--orange: #E84400;--blue: #2E6FD6;--green: #16A34A;--tab-gray: #bed0de}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:Helvetica Neue,Helvetica,Hiragino Sans,Inter,Arial,sans-serif;background:linear-gradient(to bottom,#d4d8db,#e1e4e7 55%,#dadde0);background-attachment:fixed;color:var(--ink);height:100vh;overflow:hidden;-webkit-font-smoothing:antialiased}#root{position:relative;z-index:1;height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem 1.5rem}.app-card{width:100%;max-width:1440px;height:calc(100vh - 4rem);background:var(--plate);border-radius:28px;padding:28px;box-shadow:22px 22px 55px #969ea580,-8px -8px 24px #ffffff80;display:flex;flex-direction:column}.app-header{display:flex;align-items:center;padding:6px 4px 18px;flex-shrink:0}.app-title h1{font-size:1.05rem;font-weight:700;letter-spacing:.28em;text-transform:uppercase;color:var(--ink)}.app-sub{font-size:.62rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3);margin-top:2px}.two-col{display:grid;grid-template-columns:320px 1fr;gap:26px;flex:1;min-height:0}.col-left{display:flex;flex-direction:column;gap:12px;min-height:0;background:var(--plate);border-radius:14px;box-shadow:7px 7px 16px var(--sh-dark),-7px -7px 16px var(--sh-light);padding:16px}.col-input{display:flex;flex-direction:column;gap:.75rem;flex:1;min-height:0}.col-input .csv-paste-panel{flex:1;min-height:0;display:flex;flex-direction:column}.col-input .csv-paste-area{flex:1;min-height:0}.col-player{display:flex;flex-direction:column;gap:24px;min-width:0;min-height:0}.col-player-empty{margin:auto;text-align:center;color:var(--ink-3);font-size:.9rem;line-height:1.8}.input-tabs{display:flex;gap:8px;flex-shrink:0}.tab-btn{flex:1;background:transparent;border:none;box-shadow:none;color:var(--ink-3);font-size:10px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;height:2.5rem;padding:0 1rem;display:flex;align-items:center;justify-content:center;cursor:pointer;border-radius:9px;transition:color .15s,box-shadow .08s ease}.tab-btn:hover{color:var(--ink-2)}.tab-btn span{pointer-events:none}.tab-btn.tab-active{color:var(--ink);box-shadow:inset 3px 3px 7px var(--sh-dark),inset -3px -3px 7px var(--sh-light);position:relative}.tab-btn.tab-active:after{content:"";display:block;position:absolute;bottom:6px;left:50%;transform:translate(-50%);width:16px;height:2px;border-radius:1px;background:var(--orange)}.upload-area{background:var(--plate);border-radius:12px;box-shadow:inset 4px 4px 10px var(--sh-dark),inset -4px -4px 10px var(--sh-light);padding:2.5rem;text-align:center;cursor:pointer;transition:box-shadow .15s;position:relative}.upload-area:hover,.upload-area.drag-over{box-shadow:inset 5px 5px 11px var(--sh-dark),inset -5px -5px 11px var(--sh-light)}.upload-area input[type=file]{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;cursor:pointer}.upload-icon{margin-bottom:.5rem}.upload-icon .material-symbols-rounded{font-size:2.5rem;color:var(--ink-3)}.upload-area p{color:var(--ink-2);font-size:.85rem;font-weight:500}.upload-area strong{color:var(--ink)}.csv-paste-panel{display:flex;flex-direction:column;gap:.75rem}.csv-paste-area{width:100%;box-sizing:border-box;background:var(--plate);border:none;border-radius:12px;box-shadow:inset 4px 4px 10px var(--sh-dark),inset -4px -4px 10px var(--sh-light);transition:box-shadow .15s;padding:.85rem 1rem;font-family:SF Mono,Menlo,Consolas,monospace;font-size:.8rem;line-height:1.6;color:var(--ink-2);resize:none;outline:none;scrollbar-width:none}.csv-paste-area:focus{box-shadow:inset 5px 5px 11px var(--sh-dark),inset -5px -5px 11px var(--sh-light)}.csv-paste-area::-webkit-scrollbar{display:none}.csv-paste-area::placeholder{color:var(--ink-3)}.info-card{display:flex;flex-wrap:nowrap;align-items:center;justify-content:flex-end;flex-shrink:0}.info-item{display:flex;flex-direction:column;gap:2px;padding:0 18px;white-space:nowrap;position:relative}.info-item+.info-item:before{content:"";position:absolute;left:0;top:15%;bottom:15%;width:1px;background:linear-gradient(to bottom,transparent,var(--sh-dark),transparent)}.info-item label{font-size:9px;font-weight:700;text-transform:uppercase;letter-spacing:.14em;color:#96999c}.info-item span{font-family:SF Mono,Menlo,monospace;font-size:1.05rem;font-weight:600;color:var(--ink)}.info-item:nth-child(3) span{color:var(--ink)}.image-uploader{display:flex;flex-direction:column;gap:1rem}.thumb-grid{display:flex;flex-wrap:wrap;gap:.85rem}.thumb-item{position:relative;width:96px;height:72px;border-radius:8px;overflow:hidden;flex-shrink:0;box-shadow:3.5px 3.5px 7px var(--sh-dark),-3.5px -3.5px 7px var(--sh-light)}.thumb-img{width:100%;height:100%;object-fit:cover;display:block}.thumb-remove{position:absolute;top:3px;right:3px;background:#ffffffe0;border:none;border-radius:50%;color:#ef4444;font-size:.65rem;line-height:1;padding:2px 4px;cursor:pointer;transition:background .12s,color .12s}.thumb-remove:hover:not(:disabled){background:#ef4444;color:#fff}.thumb-index{position:absolute;bottom:3px;left:4px;font-size:.65rem;color:#fff;background:#26282aa6;border-radius:3px;padding:0 3px}.ai-controls{display:flex;align-items:center;gap:.9rem;flex-wrap:wrap}.ai-controls .btn-play,.btn-csv-download{width:auto;align-self:flex-start}.ai-status{font-size:.8rem}.ai-analyzing{color:var(--ink-2)}.ai-success{color:var(--green)}.ai-error{color:#dc2626}@keyframes spin{to{transform:rotate(360deg)}}.spinner{display:inline-block;width:13px;height:13px;border:2px solid rgba(38,40,42,.2);border-top-color:var(--ink);border-radius:50%;animation:spin .7s linear infinite;flex-shrink:0}.controls-row{display:flex;gap:24px;align-items:stretch;flex-shrink:0}.controls-row .controls{flex:0 0 auto}.controls-row .info-card{flex:1}.controls{display:flex;gap:16px;flex-wrap:wrap;align-items:center}button{cursor:pointer;border:none;border-radius:10px;background:var(--key);box-shadow:5px 5px 10px var(--sh-dark),-5px -5px 10px var(--sh-light);font-family:inherit;font-size:11px;font-weight:700;letter-spacing:.06em;color:var(--ink);padding:10px 16px;display:inline-flex;align-items:center;gap:8px;transition:box-shadow .08s ease}button:disabled{opacity:.4;cursor:not-allowed}button:not(:disabled):active{box-shadow:inset 4px 4px 8px var(--sh-dark),inset -4px -4px 8px var(--sh-light)}.cled{width:13px;height:13px;border-radius:50%;flex-shrink:0;background:radial-gradient(circle at 38% 32%,#FF7A45,var(--orange) 70%);box-shadow:inset 1.5px 1.5px 3px #781e008c,inset -1px -1px 2px #ffb48c80,1px 1px 1px #ffffffd9}.cled.green{background:radial-gradient(circle at 38% 32%,#4ADE80,var(--green) 70%);box-shadow:inset 1.5px 1.5px 3px #0a50288c,inset -1px -1px 2px #b4ffd280,1px 1px 1px #ffffffd9}.btn-play,.btn-stop,.btn-midi{width:auto}.btn-chord{background:var(--key);color:var(--ink-2);padding:4px 10px;font-size:.75rem;box-shadow:3px 3px 7px var(--sh-dark),-3px -3px 7px var(--sh-light)}.btn-chord:not(:disabled):hover{color:var(--ink)}.jump-controls{display:flex;align-items:center;gap:.4rem}.jump-label{font-size:.75rem;color:var(--ink-2);white-space:nowrap}.measure-jump-input{width:64px;background:var(--plate);border:none;border-radius:8px;box-shadow:inset 3px 3px 7px var(--sh-dark),inset -3px -3px 7px var(--sh-light);color:var(--ink);font-size:.85rem;padding:8px;text-align:center}.measure-jump-input:focus{outline:none;box-shadow:inset 4px 4px 8px var(--sh-dark),inset -4px -4px 8px var(--sh-light)}.measure-jump-input:disabled{opacity:.4}.chord-table-wrap{overflow-x:auto;background:var(--plate);border-radius:14px}.chord-table{width:100%;border-collapse:collapse;font-size:.875rem;min-width:520px}.chord-table thead th{color:var(--ink-2);font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.09em;padding:.65rem .75rem;text-align:left}.chord-table tbody tr:hover{background:#96999e14}.chord-table tbody tr.active{background:#e8440014}.chord-table td{padding:.3rem .5rem;vertical-align:middle}.cell-input{background:transparent;border:none;border-radius:5px;color:var(--ink);font-size:.875rem;padding:.3rem .4rem;width:100%;box-shadow:none;transition:box-shadow .15s,background .15s}.cell-input:hover{background:#96999e14}.cell-input:focus{outline:none;background:var(--key);box-shadow:inset 2px 2px 4px var(--sh-dark),inset -2px -2px 4px var(--sh-light)}.cell-input[type=number]::-webkit-inner-spin-button,.cell-input[type=number]::-webkit-outer-spin-button{opacity:0}.cell-input[type=number]:hover::-webkit-inner-spin-button,.cell-input[type=number]:hover::-webkit-outer-spin-button{opacity:.45}.num-input{text-align:right;width:64px}.chord-input{font-weight:700;color:var(--ink);letter-spacing:.04em;min-width:120px}.btn-icon{background:var(--key);color:var(--ink-2);padding:4px 8px;font-size:.7rem;box-shadow:3px 3px 7px var(--sh-dark),-3px -3px 7px var(--sh-light)}.btn-icon:hover:not(:disabled){color:var(--ink)}.btn-delete:hover:not(:disabled){color:#ef4444}.table-footer{padding:.65rem 1rem}.btn-add-row{background:var(--key);color:var(--ink-2);font-size:.75rem;box-shadow:3px 3px 7px var(--sh-dark),-3px -3px 7px var(--sh-light)}.btn-add-row:not(:disabled):hover{color:var(--ink)}.grid-panel{background:var(--plate);border-radius:14px;box-shadow:7px 7px 16px var(--sh-dark),-7px -7px 16px var(--sh-light);padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;min-height:0;flex:1}.cg-legend{display:flex;gap:18px;align-items:center;flex-shrink:0}.cg-chip{display:inline-flex;align-items:center;gap:6px;font-size:9px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-2);font-weight:600}.cg-ldot{width:16px;height:4px;border-radius:2px;flex-shrink:0}.chord-grid-wrap{flex:1;min-height:0;overflow-y:auto;scrollbar-width:none;padding:0 0 12px}.chord-grid-wrap::-webkit-scrollbar{display:none}.chord-grid{width:100%;border-collapse:collapse;table-layout:fixed;min-width:500px;background:var(--plate)}.chord-grid thead{position:sticky;top:0;z-index:1}.cg-th-meas{width:34px;background:var(--plate);color:var(--ink-3);font-size:9px;font-weight:700;text-transform:uppercase;letter-spacing:.1em;padding:.5rem 6px;text-align:center}.cg-th-beat{background:var(--plate);color:var(--ink-3);font-family:SF Mono,Menlo,monospace;font-size:9px;font-weight:600;padding:.5rem 6px;text-align:center}.cg-th-sep{padding-left:16px}.cg-td-meas{width:28px;font-size:11px;font-weight:600;color:var(--ink-3);text-align:center;vertical-align:middle;font-family:SF Mono,Menlo,monospace;font-variant-numeric:tabular-nums;padding:4px 0;white-space:nowrap;background:var(--plate)}.cg-meas-sep{padding-left:20px}.cg-td-ghost,.cg-cell-ghost{cursor:default;pointer-events:none;background:var(--plate)}.cg-cell{position:relative;vertical-align:top;height:44px;padding:8px 6px;background:var(--plate)}.cg-cell-empty{cursor:default;border-radius:9px;box-shadow:inset 2px 2px 5px var(--sh-dark),inset -2px -2px 5px var(--sh-light);opacity:.5}.cg-cell-active{background:transparent!important}.cg-block{position:relative;background:var(--key);border-radius:9px;padding:4px 8px;height:100%;min-height:44px;display:flex;flex-direction:column;justify-content:center;box-shadow:3.5px 3.5px 7px var(--sh-dark),-3.5px -3.5px 7px var(--sh-light);transition:box-shadow .08s ease;cursor:pointer;-webkit-user-select:none;user-select:none}.cg-block:hover{box-shadow:5px 5px 10px var(--sh-dark),-5px -5px 10px var(--sh-light)}.cg-cell-active .cg-block,.cg-block.cg-block-selected{box-shadow:inset 3px 3px 7px var(--sh-dark),inset -3px -3px 7px var(--sh-light),0 0 0 2px var(--orange)}.cg-chord-name{font-size:11px;font-weight:700;color:var(--ink);letter-spacing:-.01em;line-height:1.3}.cg-degree{font-size:8.5px;font-weight:600;letter-spacing:.06em;color:var(--ink-3);margin-top:1px;text-transform:uppercase}.cg-block:after{content:"";position:absolute;left:9px;right:9px;bottom:5px;height:3px;border-radius:2px;box-shadow:inset .5px .5px 1.5px #0000004d,.5px .5px 1px #ffffffd9;display:none}.cg-block.cg-dot-t:after{background:#888}.cg-block.cg-dot-s:after{background:#2e6fd6}.cg-block.cg-dot-d:after{background:#e84400}.cg-block.cg-dot-t .cg-degree{color:#888;opacity:.75}.cg-block.cg-dot-s .cg-degree{color:#2e6fd6;opacity:.9}.cg-block.cg-dot-d .cg-degree{color:#e84400;opacity:.9}.error-banner{background:#e8440014;color:#dc2626;border-radius:10px;padding:.75rem 1rem;margin-top:1rem;font-size:.875rem}