html{scroll-behavior:smooth}body{margin:0;padding:0}code{font-family:Courier New,monospace}:root{--bg-primary: #0a0a0a;--bg-secondary: #1a1a1a;--bg-tertiary: #151515;--text-primary: #ffffff;--text-secondary: #b0b0b0;--text-tertiary: #808080;--border-color: #333333;--border-active: #ffffff;--accent: #ffffff;--success: #4ade80;--error: #f87171;--warning: #fbbf24;--spacing-xs: 8px;--spacing-sm: 12px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--transition: .2s ease}*{box-sizing:border-box}body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--bg-primary);color:var(--text-primary)}.app{min-height:100vh;display:flex;justify-content:center;align-items:flex-start;padding:var(--spacing-xl) var(--spacing-md)}.container{width:100%;max-width:800px}.section{margin-bottom:var(--spacing-lg)}.app-header{text-align:center;margin-bottom:var(--spacing-xl)}.app-title{font-size:48px;font-weight:300;letter-spacing:-1px;margin:0 0 var(--spacing-md) 0;color:var(--text-primary)}.app-divider{width:200px;height:1px;background:linear-gradient(to right,transparent,var(--border-color),transparent);margin:0 auto}.file-uploader{border:2px dashed var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-xl);text-align:center;cursor:pointer;transition:all var(--transition);background-color:var(--bg-secondary)}.file-uploader:hover:not(.disabled){border-color:var(--border-active);box-shadow:0 0 20px #ffffff1a}.file-uploader.dragging{border-color:var(--border-active);background-color:var(--bg-tertiary);box-shadow:0 0 30px #ffffff26}.file-uploader.disabled{opacity:.5;cursor:not-allowed}.upload-icon{font-size:64px;margin-bottom:var(--spacing-md)}.upload-title{font-size:20px;font-weight:500;color:var(--text-primary);margin-bottom:var(--spacing-xs)}.upload-subtitle{font-size:14px;color:var(--text-secondary)}.uploaded-file-info{background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-lg);display:flex;justify-content:space-between;align-items:center}.file-info-content{display:flex;align-items:center;gap:var(--spacing-md);flex:1}.file-info-icon{font-size:32px;color:var(--success)}.file-info-name{font-size:16px;font-weight:500;color:var(--text-primary);margin-bottom:var(--spacing-xs)}.file-info-meta{font-size:14px;color:var(--text-secondary)}.btn-change{padding:var(--spacing-sm) var(--spacing-lg);background-color:transparent;border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);font-size:14px;cursor:pointer;transition:all var(--transition)}.btn-change:hover{background-color:var(--text-primary);color:var(--bg-primary);border-color:var(--text-primary)}.chart-selector{background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);overflow:hidden}.selector-header{padding:var(--spacing-lg);border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center}.selector-title{font-size:18px;font-weight:500;color:var(--text-primary)}.selector-actions{display:flex;gap:var(--spacing-md)}.btn-text{background:none;border:none;color:var(--text-secondary);font-size:14px;cursor:pointer;transition:color var(--transition);padding:0}.btn-text:hover{color:var(--text-primary)}.file-list{max-height:300px;overflow-y:auto}.file-item{padding:var(--spacing-md) var(--spacing-lg);display:flex;align-items:center;gap:var(--spacing-md);cursor:pointer;transition:background-color var(--transition);border-bottom:1px solid var(--border-color)}.file-item:last-child{border-bottom:none}.file-item:hover,.file-item.selected{background-color:var(--bg-tertiary)}.checkbox{font-size:20px;-webkit-user-select:none;user-select:none}.file-path{font-size:14px;font-family:Courier New,monospace;color:var(--text-primary)}.selector-footer{padding:var(--spacing-md) var(--spacing-lg);border-top:1px solid var(--border-color);font-size:12px;color:var(--text-secondary);text-align:center}.scaling-input{background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-lg)}.input-header{margin-bottom:var(--spacing-md)}.input-header label{display:block;font-size:18px;font-weight:500;color:var(--text-primary);margin-bottom:var(--spacing-xs)}.input-hint{font-size:13px;color:var(--text-secondary)}.input-wrapper{margin-bottom:var(--spacing-sm)}.input-wrapper input{width:100%;padding:var(--spacing-md);background-color:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);font-size:24px;text-align:center;font-weight:500;transition:all var(--transition)}.input-wrapper input:focus{outline:none;border-color:var(--border-active);box-shadow:0 0 0 3px #ffffff1a}.input-wrapper input.error{border-color:var(--error)}.input-wrapper input:disabled{opacity:.5;cursor:not-allowed}.error-message{color:var(--error);font-size:14px;margin-top:var(--spacing-xs)}.input-info{font-size:12px;color:var(--text-tertiary);text-align:center}.process-button{width:100%;padding:var(--spacing-lg);background-color:var(--text-primary);color:var(--bg-primary);border:none;border-radius:var(--radius-lg);font-size:18px;font-weight:600;letter-spacing:1px;cursor:pointer;transition:all var(--transition);display:flex;align-items:center;justify-content:center;gap:var(--spacing-md)}.process-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 24px #fff3}.process-button:active:not(:disabled){transform:translateY(0)}.process-button:disabled{opacity:.5;cursor:not-allowed}.process-button.loading{opacity:.8}.spinner{width:20px;height:20px;border:2px solid var(--bg-primary);border-top-color:transparent;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.log-viewer{background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);overflow:hidden}.log-header{padding:var(--spacing-md) var(--spacing-lg);border-bottom:1px solid var(--border-color);font-size:14px;font-weight:500;color:var(--text-secondary);text-align:center;letter-spacing:2px}.log-content{padding:var(--spacing-lg);max-height:400px;overflow-y:auto;font-family:Courier New,monospace;font-size:13px;line-height:1.8}.log-content::-webkit-scrollbar{width:8px}.log-content::-webkit-scrollbar-track{background:var(--bg-primary)}.log-content::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}.log-content::-webkit-scrollbar-thumb:hover{background:var(--text-tertiary)}.log-empty{color:var(--text-tertiary);text-align:center;padding:var(--spacing-xl)}.log-line{display:flex;gap:var(--spacing-sm);margin-bottom:var(--spacing-xs);animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}.log-icon{flex-shrink:0;width:20px}.log-message{flex:1;word-break:break-word}.log-info,.log-info .log-icon{color:var(--text-secondary)}.log-success{color:var(--success)}.log-error{color:var(--error)}.log-warning{color:var(--warning)}.app-footer{text-align:center;padding:var(--spacing-xl) 0;margin-top:var(--spacing-xl);border-top:1px solid var(--border-color)}.footer-text{font-size:12px;color:var(--text-tertiary)}@media(max-width:768px){.app{padding:var(--spacing-md) var(--spacing-sm)}.app-title{font-size:32px}.uploaded-file-info{flex-direction:column;gap:var(--spacing-md)}.selector-header{flex-direction:column;gap:var(--spacing-md);align-items:flex-start}.selector-actions{width:100%;justify-content:space-between}}