:root{--bg-color: #dcdae7;--surface-color: #e8e9ec;--primary-color: #212529;--secondary-color: #03dac6;--text-color: #212529;--text-muted: #6c757d;--border-color: #dee2e6;--chord-bg: rgba(111, 66, 193, .1);--font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-chord: "Times New Roman", Times, serif}*{box-sizing:border-box}body{margin:0;padding:0;font-family:var(--font-sans);background-color:var(--bg-color);color:var(--text-color);height:100vh;display:flex;flex-direction:column}header{padding:1rem 2rem;background-color:var(--surface-color);border-bottom:1px solid var(--border-color);display:flex;flex-direction:column;gap:1rem}.header-top{display:flex;align-items:center;justify-content:space-between;width:100%}h1{margin:0;font-size:1.2rem;font-weight:600;color:var(--primary-color)}.controls{display:flex;gap:1.5rem;align-items:center;flex-wrap:wrap}.control-group{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap}.radio-group{display:flex;gap:.8rem;align-items:center;background:var(--bg-color);padding:.3rem .8rem;border-radius:4px;border:1px solid var(--border-color)}.radio-group label{color:var(--text-color)!important}.radio-item{display:flex;align-items:center;gap:.3rem;font-size:.85rem;cursor:pointer}label{font-size:.9rem;color:var(--text-muted)}select,button,input[type=text]{background-color:var(--bg-color);color:var(--text-color);border:1px solid var(--border-color);padding:.4rem .8rem;border-radius:4px;font-family:var(--font-sans);font-size:.9rem;cursor:pointer;transition:border-color .2s}select:hover,button:hover,input[type=text]:hover{border-color:var(--primary-color)}select:focus,input[type=text]:focus{outline:none;border-color:var(--primary-color)}.icon-btn{background:none;cursor:pointer;padding:.1rem}.checkbox-wrapper{display:flex;align-items:center;gap:.5rem;cursor:pointer}input[type=checkbox],input[type=radio]{accent-color:var(--primary-color);cursor:pointer}.tool-area{display:flex;align-items:center;justify-content:center;gap:1.5rem;padding:.5rem 0;width:100%;border-top:1px solid var(--border-color);background-color:var(--bg-color);flex-wrap:wrap}.key-selector-container{overflow-x:auto;padding-bottom:.5rem}.key-selector{display:inline-grid;grid-template-rows:auto auto;gap:4px}.key-option{display:flex;align-items:center;justify-content:center;position:relative}.key-option 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.2s;z-index:10}.resizer:hover{background-color:#bb86fc1a}.resizer:after{content:"";width:2px;height:30px;background-color:var(--border-color);border-radius:1px}.resizer:hover:after{background-color:var(--primary-color)}.panel-header{padding:.8rem 1rem;background-color:#cacae7e4;border-bottom:1px solid var(--border-color);font-size:.9rem;font-weight:600;color:var(--text-muted);display:flex;justify-content:space-between}textarea,#outputArea{flex:1;width:100%;margin:0;padding:1rem;background-color:transparent;border:none;color:var(--text-color);font-family:var(--font-mono);font-size:14px;line-height:1.6;resize:none;outline:none;overflow:auto;white-space:pre}#outputArea{-webkit-user-select:text;user-select:text}.chord{border-radius:2px;color:#e67e22;font-weight:700;font-family:var(--font-chord)}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--bg-color)}::-webkit-scrollbar-thumb{background:#444;border-radius:5px}::-webkit-scrollbar-thumb:hover{background:#555}.back-link{display:block;margin:1rem;color:var(--primary-color);text-decoration:none;font-size:.9rem}.back-link:hover{text-decoration:underline}.settings-panel{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#000000b3;z-index:2000;display:flex;justify-content:center;align-items:flex-start;overflow-y:auto;padding:2rem 0}.settings-content{background-color:var(--surface-color);border:1px solid var(--border-color);border-radius:8px;width:90%;max-width:600px;box-shadow:0 4px 12px #00000080;display:flex;flex-direction:column;max-height:calc(100vh - 4rem);overflow-y:auto}.settings-header{padding:1rem 1.5rem;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center}.settings-header h2{margin:0;font-size:1.2rem;color:var(--primary-color)}.close-btn{background:none;border:none;color:var(--text-muted);font-size:1.5rem;cursor:pointer;padding:0;line-height:1}.close-btn:hover{color:var(--text-color)}.settings-body{padding:1.5rem;display:flex;flex-direction:column;gap:1.5rem}.separator{border:0;border-top:1px solid var(--border-color);width:100%;margin:0}.full-width-input{width:100%;margin-top:.5rem}.button-group{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.5rem}.button-group button{padding:.4rem .8rem;font-size:.8rem;background:#eee;color:#333}.button-group 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.preview-text{color:#000;font-family:monospace}details>summary{cursor:pointer;color:var(--text-muted);font-size:.9rem;margin-bottom:.5rem}details[open]>summary{margin-bottom:1rem}@media(max-width:768px){main{flex-direction:column}.header-top{flex-wrap:wrap;gap:1rem}.controls{gap:1rem}}.chord-row{display:flex;flex-wrap:wrap;gap:1rem;margin-bottom:1rem;align-items:flex-end}.chord-item{display:flex;flex-direction:column;align-items:center;gap:.5rem;zoom:var(--chord-scale, 1)}.chord-item .title{font-size:1rem;font-weight:700;color:var(--primary-color);font-family:var(--font-chord)}.chord-item .svg-container{border:1px solid var(--border-color);border-radius:4px;display:flex}.text-row{margin-bottom:.5rem;color:var(--text-color);white-space:pre-wrap;font-family:var(--font-mono);min-height:1.2em}.panel.maximized{position:fixed;top:0;left:0;width:100vw;height:100vh;z-index:1000;border-radius:0;border:none}.panel.maximized .panel-header{border-bottom:1px solid var(--border-color)}.panel.maximized #outputArea{height:calc(100vh - 50px)}