:root{--bg-color: #f8fafc;--card-bg: #ffffff;--primary-color: #3b82f6;--primary-hover: #2563eb;--text-main: #1e293b;--text-muted: #64748b;--border-color: #e2e8f0;--radius-lg: 12px;--radius-md: 8px;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1)}@media(prefers-color-scheme:dark){:root{--bg-color: #0f172a;--card-bg: #1e293b;--primary-color: #60a5fa;--primary-hover: #3b82f6;--text-main: #f1f5f9;--text-muted: #94a3b8;--border-color: #334155}}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,sans-serif;background-color:var(--bg-color);color:var(--text-main);line-height:1.5;min-height:100vh;display:flex;justify-content:center;padding:2rem}#app{width:100%;max-width:800px;display:flex;flex-direction:column;gap:2rem}.app-header{text-align:center;padding:1rem;background-color:var(--card-bg);border-bottom:1px solid var(--border-color)}.header-content{display:flex;justify-content:center;align-items:center;gap:1rem;position:relative}.app-header h1{font-size:1.5rem;margin:0;background:linear-gradient(135deg,var(--primary-color),var(--primary-hover));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.lang-switcher{position:absolute;right:0;top:50%;transform:translateY(-50%)}#lang-select{padding:.25rem .5rem;font-size:.85rem;border-radius:var(--radius-sm);border:1px solid var(--border-color);background-color:var(--bg-color);cursor:pointer;width:auto}.app-header p{color:var(--text-muted);margin-top:.5rem;font-size:.9rem}html,body{height:100%;overflow:hidden}.app-container{height:100%;display:flex;flex-direction:column;max-width:1200px;margin:0 auto;padding:1rem}.layout-grid{display:grid;grid-template-columns:1fr 350px;gap:1.5rem;flex:1;min-height:0;overflow:hidden}.panel-files{background-color:var(--card-bg);border-radius:var(--radius-lg);border:1px solid var(--border-color);display:flex;flex-direction:column;overflow:hidden;height:100%}.panel-operations{display:flex;flex-direction:column;gap:1rem;overflow-y:auto;height:100%;padding-right:4px}#file-list-section{display:flex;flex-direction:column;height:100%}.section-header{padding:1rem;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center;background-color:var(--bg-color)}.section-header h2{font-size:1.1rem;margin:0}.file-list{flex:1;overflow-y:auto;padding:.5rem;display:flex;flex-direction:column;gap:.5rem}.file-item{background-color:var(--card-bg);border-radius:var(--radius-md);border:1px solid var(--border-color);display:flex;align-items:center;padding:.5rem;gap:.75rem}.file-preview{width:40px;height:40px;border-radius:var(--radius-md);overflow:hidden;flex-shrink:0;background-color:var(--bg-color);display:flex;align-items:center;justify-content:center}.file-preview img{width:100%;height:100%;object-fit:cover}.file-details{flex:1;display:flex;flex-direction:column;gap:.1rem;min-width:0}.file-name{font-weight:600;font-size:.85rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-meta{font-size:.75rem;color:var(--text-muted);display:flex;gap:1rem}.meta-item{display:flex;align-items:center;gap:.25rem}.arrow{color:var(--text-muted);font-size:.8rem}.file-actions{display:flex;align-items:center;gap:.5rem;margin-left:auto}.status-badge{padding:2px 6px;border-radius:4px;font-size:.7rem;font-weight:500;background-color:var(--border-color);white-space:nowrap}.status-badge.done{background-color:#dcfce7;color:#166534}.status-badge.error{background-color:#fee2e2;color:#991b1b}.status-badge.processing{background-color:#dbeafe;color:#1e40af}.download-link{color:var(--primary-color);text-decoration:none;font-size:.8rem;font-weight:500;display:flex;align-items:center;gap:.25rem}.download-link:hover{text-decoration:underline}.upload-section,.controls-section,.progress-section{background-color:var(--card-bg);border-radius:var(--radius-lg);border:1px solid var(--border-color);padding:1.25rem}.upload-section{text-align:center}.drop-zone{border:2px dashed var(--border-color);border-radius:var(--radius-md);padding:2rem 1rem;transition:all .2s;background-color:var(--bg-color);cursor:pointer}.drop-zone.drag-over{border-color:var(--primary-color);background-color:#eff6ff}.drop-zone .icon{font-size:2.5rem;margin-bottom:.5rem}.drop-zone p{margin:.25rem 0;font-weight:500}.drop-zone .sub-text{font-size:.85rem;color:var(--text-muted);margin-bottom:1rem}.text-btn{background:none;border:none;color:var(--primary-color);font-weight:600;cursor:pointer;text-decoration:underline}.controls-section{display:flex;flex-direction:column;gap:1.25rem}.control-group{display:flex;flex-direction:column;gap:.5rem}.control-group label{font-size:.9rem;font-weight:500;display:flex;justify-content:space-between;color:var(--text-muted)}select,input[type=range]{width:100%;padding:.5rem;border:1px solid var(--border-color);border-radius:var(--radius-md);background-color:var(--bg-color);color:var(--text-main)}.action-btn{width:100%;padding:.75rem;background-color:var(--primary-color);color:#fff;border:none;border-radius:var(--radius-md);font-weight:600;cursor:pointer;transition:background-color .2s}.action-btn:hover:not(:disabled){background-color:var(--primary-hover)}.action-btn:disabled{background-color:var(--text-muted);cursor:not-allowed}.progress-header{display:flex;justify-content:space-between;margin-bottom:.5rem;font-size:.875rem;color:var(--text-muted)}progress{width:100%;height:8px;border-radius:4px;overflow:hidden}progress::-webkit-progress-bar{background-color:var(--border-color)}progress::-webkit-progress-value{background-color:var(--primary-color);transition:width .3s ease}.resize-controls{display:flex;align-items:center;gap:.5rem;margin-bottom:.5rem}.resize-controls input,.resize-scale input{width:100%;padding:.5rem;border:1px solid var(--border-color);border-radius:var(--radius-sm);background-color:var(--bg-color);color:var(--text-color)}.checkbox-group{flex-direction:row;align-items:center;gap:.5rem}.checkbox-group input[type=checkbox]{width:auto;margin:0}.checkbox-group label{margin:0;font-weight:400;cursor:pointer}.advanced-options{margin-bottom:1.5rem;border:1px solid var(--border-color);border-radius:var(--radius-sm);padding:.5rem;background-color:var(--bg-color)}.advanced-options summary{cursor:pointer;font-weight:600;color:var(--text-color);padding:.25rem;list-style:none;display:flex;align-items:center;justify-content:space-between}.advanced-options summary::-webkit-details-marker{display:none}.advanced-options summary:after{content:"+";font-weight:700;margin-left:.5rem}.advanced-options[open] summary:after{content:"-"}.advanced-options[open] .control-group{margin-top:1rem}.mobile-tabs{display:none;justify-content:center;gap:1rem;margin-bottom:1rem;padding:0 1rem;border-bottom:1px solid var(--border-color)}.tab-btn{background:none;border:none;padding:.75rem 1rem;font-weight:500;color:var(--text-muted);cursor:pointer;border-bottom:2px solid transparent}.tab-btn.active{color:var(--primary-color);border-bottom-color:var(--primary-color)}@media(max-width:768px){.layout-grid{display:block;height:auto}.mobile-tabs{display:flex}.panel-files,.panel-operations{display:none;height:calc(100vh - 180px)}.panel-files.active,.panel-operations.active{display:flex}.panel-operations{overflow-y:auto}}