@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=DM+Sans:ital,wght@0,400;0,500;0,600;1,400&display=swap");:root{--bg-primary:#0a0a0f;--bg-secondary:#12121a;--bg-card:#16161f;--bg-card-hover:#1c1c28;--bg-input:#1a1a25;--bg-overlay:rgba(0,0,0,.7);--border-default:#2a2a3a;--border-focus:#00e676;--border-subtle:#1f1f2e;--text-primary:#f0f0f8;--text-secondary:#b0b0c8;--text-muted:#8888a0;--text-accent:#00e676;--text-danger:#ff5252;--text-warning:#ffab40;--accent:#00e676;--accent-dim:rgba(0,230,118,.12);--accent-glow:rgba(0,230,118,.25);--accent-hover:#0f8;--success:#00e676;--error:#ff5252;--info:#448aff;--shadow-sm:0 1px 3px rgba(0,0,0,.4);--shadow-md:0 4px 16px rgba(0,0,0,.5);--shadow-lg:0 8px 32px rgba(0,0,0,.6);--shadow-glow:0 0 20px rgba(0,230,118,.15);--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--radius-xl:20px;--transition-fast:150ms ease;--transition-normal:250ms ease;--transition-slow:400ms cubic-bezier(0.4,0,0.2,1);--sidebar-width:360px;--header-height:60px}*,:after,:before{margin:0;padding:0;box-sizing:border-box}html{font-size:14px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body,html{font-family:DM Sans,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-primary)!important;color:var(--text-primary);line-height:1.6;margin:0;padding:0}#root,body,html{height:100vh;overflow:hidden}#root{position:relative;z-index:1}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-default);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.app{height:100vh;display:flex;flex-direction:column;background:var(--bg-primary)}.app,.app-main{overflow:hidden}.app-main{flex:1;min-height:0}.app-header{justify-content:space-between;padding:0 28px;height:var(--header-height);border-bottom:1px solid var(--border-subtle);background:rgba(10,10,15,.85);backdrop-filter:blur(20px);position:sticky;top:0;z-index:100}.app-header,.app-logo{display:flex;align-items:center}.app-logo{gap:12px}.app-logo-img{height:36px;width:auto}.app-logo-icon{width:32px;height:32px;background:linear-gradient(135deg,var(--accent),#00b060);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:#000;font-size:14px}.app-logo-icon,.app-logo-text{font-weight:700;font-family:Space Grotesk,sans-serif}.app-logo-text{font-size:18px;color:var(--text-primary);letter-spacing:-.5px}.app-logo-text span{color:var(--accent)}.app-header-tag{background:var(--bg-card);padding:3px 10px;border-radius:20px;border:1px solid var(--border-subtle);letter-spacing:.5px;margin-left:4px}.app-footer,.app-header-tag{font-size:12px;color:var(--text-muted)}.app-footer{text-align:center;padding:8px;border-top:1px solid var(--border-subtle);background:var(--bg-primary)}.converter-layout{display:flex;min-height:calc(100vh - var(--header-height) - 80px)}.converter-sidebar{width:var(--sidebar-width);min-width:var(--sidebar-width);border-right:1px solid var(--border-subtle);padding:16px;display:flex;flex-direction:column;gap:12px;height:calc(100vh - var(--header-height) - 42px);background:rgba(16,16,24,.5)}.converter-main{flex:1;padding:16px;display:grid;grid-template-columns:1fr;grid-template-rows:minmax(0,55%) auto minmax(0,260px);gap:12px;height:calc(100vh - var(--header-height) - 42px)}.converter-main>.card:first-child{min-height:0;overflow:hidden;display:flex;flex-direction:column}.converter-main>.card:last-of-type{min-height:0;overflow:hidden;display:flex;flex-direction:column}.card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:16px;transition:border-color var(--transition-fast)}.card:hover{border-color:var(--border-default)}.card-title{display:flex;align-items:center;gap:8px;font-family:Space Grotesk,sans-serif;font-weight:600;font-size:14px;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.8px;margin-bottom:14px}.card-title svg{width:16px;height:16px;color:var(--accent);flex-shrink:0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 16px;border:1px solid var(--border-default);border-radius:var(--radius-sm);background:var(--bg-card);color:var(--text-primary);font-family:DM Sans,sans-serif;font-size:13px;font-weight:500;cursor:pointer;transition:all var(--transition-fast);white-space:nowrap}.btn:hover{background:var(--bg-card-hover);border-color:var(--text-muted)}.btn:disabled{opacity:.4;cursor:not-allowed}.btn-primary{background:var(--accent);color:#000;border-color:var(--accent);font-weight:600}.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover);box-shadow:var(--shadow-glow)}.btn-primary:disabled{background:var(--accent-dim);border-color:transparent;color:var(--text-muted);box-shadow:none}.btn-secondary{background:transparent;color:var(--text-secondary);border-color:var(--border-default)}.btn-secondary:hover{color:var(--text-primary);border-color:var(--text-muted)}.uploader-zone{border:2px dashed var(--border-default);border-radius:var(--radius-md);padding:28px 20px;text-align:center;cursor:pointer;transition:all var(--transition-normal);background:var(--bg-input)}.uploader-zone.active,.uploader-zone:hover{border-color:var(--accent);background:var(--accent-dim)}.uploader-zone.active{box-shadow:inset 0 0 30px rgba(0,230,118,.05)}.uploader-icon{width:40px;height:40px;color:var(--text-muted);margin-bottom:12px;transition:color var(--transition-normal)}.uploader-zone:hover .uploader-icon{color:var(--accent)}.uploader-text{font-size:15px;color:var(--text-secondary);margin-bottom:6px}.uploader-hint{font-size:13px;color:var(--text-muted);margin-bottom:14px}.uploader-url{display:flex;gap:8px;margin-top:8px}.uploader-url input{flex:1;padding:7px 12px;background:var(--bg-primary);border:1px solid var(--border-default);border-radius:var(--radius-sm);color:var(--text-primary);font-size:12px;font-family:DM Sans,sans-serif;outline:none;transition:border-color var(--transition-fast)}.uploader-url input:focus{border-color:var(--accent)}.uploader-url input::-moz-placeholder{color:var(--text-muted)}.uploader-url input::placeholder{color:var(--text-muted)}.uploader-zone.has-file{padding:0;border-style:solid;border-color:var(--border-default);cursor:pointer}.uploader-preview{display:flex;align-items:center;gap:12px;padding:10px}.uploader-preview img{width:56px;height:56px;-o-object-fit:cover;object-fit:cover;border-radius:var(--radius-sm);border:1px solid var(--border-default)}.uploader-file-info{flex:1;min-width:0}.uploader-file-name{font-size:14px;font-weight:500;color:var(--text-primary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.uploader-file-size{font-size:13px;color:var(--text-muted);margin-top:2px}.uploader-remove{width:28px;height:28px;display:flex;align-items:center;justify-content:center;border:none;background:transparent;color:var(--text-muted);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);flex-shrink:0}.uploader-remove:hover{background:rgba(255,82,82,.15);color:var(--error)}.mode-selector,.mode-tab{display:flex;gap:6px}.mode-tab{flex:1;align-items:center;justify-content:center;padding:9px 12px;border:1px solid var(--border-default);border-radius:var(--radius-sm);background:transparent;color:var(--text-secondary);font-family:DM Sans,sans-serif;font-size:13px;font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.mode-tab:hover{background:var(--bg-input);color:var(--text-primary)}.mode-tab.active{background:var(--accent-dim);border-color:var(--accent);color:var(--accent)}.mode-tab:disabled{opacity:.4;cursor:not-allowed}.mode-tab svg{width:14px;height:14px}.param-panel{gap:14px}.param-group,.param-panel{display:flex;flex-direction:column}.param-group{gap:6px}.param-label{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--text-secondary)}.param-value{font-family:Space Grotesk,monospace;font-weight:600;color:var(--accent);font-size:13px}.param-slider{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:6px;background:var(--border-default);border-radius:3px;outline:none;cursor:pointer}.param-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:16px;height:16px;border-radius:50%;background:var(--accent);cursor:pointer;box-shadow:0 0 8px rgba(0,230,118,.3);-webkit-transition:box-shadow var(--transition-fast);transition:box-shadow var(--transition-fast)}.param-slider::-webkit-slider-thumb:hover{box-shadow:0 0 14px rgba(0,230,118,.5)}.param-slider:disabled{opacity:.4;cursor:not-allowed}.param-select{padding:7px 12px;background:var(--bg-input);border:1px solid var(--border-default);border-radius:var(--radius-sm);color:var(--text-primary);font-family:DM Sans,sans-serif;font-size:13px;outline:none;cursor:pointer;transition:border-color var(--transition-fast)}.param-select:focus{border-color:var(--accent)}.param-select:disabled{opacity:.4;cursor:not-allowed}.file-info{display:flex;gap:8px}.file-info-item{flex:1;padding:10px;background:var(--bg-input);border-radius:var(--radius-sm);text-align:center}.file-info-label{font-size:12px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}.file-info-value{font-family:Space Grotesk,sans-serif;font-weight:600;font-size:15px;color:var(--text-primary);margin-top:4px}.file-info-value.primary{color:var(--accent)}.file-info-value.success{color:var(--success)}.preview-toolbar{display:flex;align-items:center;justify-content:space-between;padding:8px 14px;border-bottom:1px solid var(--border-subtle);background:var(--bg-secondary)}.preview-tabs{display:flex;gap:2px;background:var(--bg-primary);border-radius:var(--radius-sm);padding:2px}.preview-tab{padding:5px 14px;border:none;background:transparent;color:var(--text-muted);font-family:DM Sans,sans-serif;font-size:13px;font-weight:500;cursor:pointer;border-radius:4px;transition:all var(--transition-fast)}.preview-tab:hover{color:var(--text-secondary)}.preview-tab.active{background:var(--accent-dim);color:var(--accent)}.preview-zoom{display:flex;align-items:center;gap:4px}.preview-zoom-btn{width:26px;height:26px;display:flex;align-items:center;justify-content:center;border:1px solid var(--border-default);background:var(--bg-card);color:var(--text-secondary);border-radius:4px;cursor:pointer;font-size:14px;font-weight:600;transition:all var(--transition-fast)}.preview-zoom-btn:hover{border-color:var(--accent);color:var(--accent)}.preview-zoom-value{font-family:Space Grotesk,monospace;font-size:12px;color:var(--text-muted);min-width:40px;text-align:center}.preview-content{flex:1;min-height:0;overflow:auto;display:flex;align-items:center;justify-content:center;background:linear-gradient(45deg,var(--bg-input) 25%,transparent 25%),linear-gradient(-45deg,var(--bg-input) 25%,transparent 25%),linear-gradient(45deg,transparent 75%,var(--bg-input) 75%),linear-gradient(-45deg,transparent 75%,var(--bg-input) 75%);background-size:16px 16px;background-position:0 0,0 8px,8px -8px,-8px 0;background-color:var(--bg-primary)}.preview-split{display:flex;width:100%;height:100%;min-height:0}.preview-pane{flex:1;flex-direction:column;position:relative;padding:20px;min-height:0}.preview-pane,.preview-pane>div{display:flex;align-items:center;justify-content:center;overflow:hidden}.preview-pane>div{max-width:100%;max-height:calc(100% - 30px)}.preview-pane:first-child{border-right:1px solid var(--border-subtle)}.preview-pane img{max-width:100%;max-height:calc(100% - 30px);-o-object-fit:contain;object-fit:contain}.preview-pane-label{position:absolute;top:10px;left:10px;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:1px;color:var(--text-muted);background:rgba(10,10,15,.8);padding:3px 8px;border-radius:4px;backdrop-filter:blur(8px)}.svg-preview-content{display:flex;align-items:center;justify-content:center;width:100%;height:100%;overflow:hidden}.svg-preview-content svg{max-width:100%;max-height:100%;-o-object-fit:contain;object-fit:contain;width:auto;height:auto}.preview-empty{display:flex;flex-direction:column;align-items:center;gap:10px;color:var(--text-muted)}.preview-empty svg{width:48px;height:48px;opacity:.3}.preview-empty-text{font-size:14px}.compare-slider{position:relative;width:100%;height:100%;min-height:0;overflow:hidden;cursor:ew-resize;-webkit-user-select:none;-moz-user-select:none;user-select:none}.compare-slider-image{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}.compare-slider-image .svg-preview-content,.compare-slider-image .svg-preview-content svg,.compare-slider-image img{max-width:100%;max-height:100%;-o-object-fit:contain;object-fit:contain}.compare-slider-image .svg-preview-content svg{width:100%;height:100%}.compare-slider-handle{position:absolute;top:0;bottom:0;width:3px;background:var(--accent);transform:translateX(-50%);z-index:10;box-shadow:0 0 12px rgba(0,230,118,.4)}.compare-slider-handle:before{content:"";width:32px;height:32px;border-radius:50%;background:var(--accent);border:3px solid var(--bg-primary);box-shadow:var(--shadow-md)}.compare-slider-handle:after,.compare-slider-handle:before{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.compare-slider-handle:after{content:"⟨ ⟩";font-size:10px;font-weight:700;color:#000;letter-spacing:4px;white-space:nowrap}.export-panel{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.export-select{padding:8px 10px;border:1px solid var(--border-default);border-radius:var(--radius-sm);background:var(--bg-input);color:var(--text-secondary);font-family:DM Sans,sans-serif;font-size:14px;cursor:pointer}.export-select:hover{border-color:var(--accent)}.export-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border:1px solid var(--border-default);border-radius:var(--radius-sm);background:var(--bg-input);color:var(--text-secondary);font-family:DM Sans,sans-serif;font-size:14px;font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.export-btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent);background:var(--accent-dim)}.export-btn:disabled{opacity:.35;cursor:not-allowed}.export-btn.copied{border-color:var(--success);color:var(--success);background:rgba(0,230,118,.1)}.export-btn svg{width:15px;height:15px}.export-options{display:flex;flex-wrap:wrap;gap:10px;align-items:center;padding:12px 0 4px;border-top:1px solid var(--border-subtle);margin-top:4px}.export-option-group{display:flex;align-items:center;gap:6px}.export-option-label{font-size:12px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;white-space:nowrap}.export-option-input{width:70px;padding:5px 8px;background:var(--bg-primary);border:1px solid var(--border-default);border-radius:4px;color:var(--text-primary);font-family:Space Grotesk,monospace;font-size:13px;outline:none;transition:border-color var(--transition-fast)}.export-option-input:focus{border-color:var(--accent)}.export-option-input.wide{width:90px}.export-color-input{width:28px;height:28px;padding:2px;background:var(--bg-primary);border:1px solid var(--border-default);border-radius:4px;cursor:pointer}.export-color-input::-webkit-color-swatch-wrapper{padding:0}.export-color-input::-webkit-color-swatch{border:none;border-radius:2px}.history-grid{display:grid;grid-template-columns:repeat(10,1fr);gap:6px;flex:1;min-height:0;overflow-y:auto;padding:2px}.history-item{display:flex;flex-direction:column;align-items:center;gap:4px;padding:8px 4px;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);border:1px solid transparent;position:relative;height:90px}.history-item:hover{background:var(--bg-input)}.history-item.active{background:var(--accent-dim);border-color:rgba(0,230,118,.2)}.history-thumb{width:48px;height:48px;-o-object-fit:cover;object-fit:cover;border-radius:6px;border:1px solid var(--border-default);flex-shrink:0}.history-info{flex:1;min-width:0;text-align:center;width:100%}.history-name{font-size:12px;font-weight:500;color:var(--text-primary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}.history-meta{font-size:11px;color:var(--text-muted);margin-top:0}.history-delete{position:absolute;top:4px;right:4px;width:20px;height:20px;display:flex;align-items:center;justify-content:center;border:none;background:rgba(0,0,0,.5);color:#fff;border-radius:50%;cursor:pointer;opacity:0;transition:all var(--transition-fast);flex-shrink:0}.history-item:hover .history-delete{opacity:1}.history-delete:hover{background:rgba(255,82,82,.8);color:#fff}.history-empty{text-align:center;padding:24px;color:var(--text-muted);font-size:13px}.loading-overlay{position:fixed;inset:0;background:var(--bg-overlay);backdrop-filter:blur(8px);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;z-index:1000;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.loading-spinner{width:40px;height:40px;border:3px solid var(--border-default);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.loading-text{font-family:Space Grotesk,sans-serif;font-size:14px;color:var(--text-secondary);letter-spacing:.5px}.loading-progress{width:200px;height:3px;background:var(--border-default);border-radius:2px;overflow:hidden}.loading-progress-bar{height:100%;background:var(--accent);border-radius:2px;transition:width .3s ease}.toast{position:fixed;top:80px;right:20px;padding:10px 20px;border-radius:var(--radius-sm);font-size:14px;font-weight:500;z-index:2000;animation:slideIn .3s ease;box-shadow:var(--shadow-lg)}.toast.success{background:rgba(0,230,118,.15);color:var(--accent);border:1px solid rgba(0,230,118,.3)}.toast.error{background:rgba(255,82,82,.15);color:var(--error);border:1px solid rgba(255,82,82,.3)}.toast.info{background:rgba(68,138,255,.15);color:var(--info);border:1px solid rgba(68,138,255,.3)}@keyframes slideIn{0%{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}.batch-convert{margin-top:auto;padding-top:12px}.batch-header{display:flex;justify-content:flex-end}.batch-tasks{margin-top:8px;border:1px solid var(--border-default);border-radius:var(--radius-md);overflow:hidden;background:var(--bg-card);max-height:0;transition:max-height .3s ease}.batch-tasks.expanded{max-height:400px;overflow-y:auto}.batch-summary{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;font-size:13px;color:var(--text-secondary);border-bottom:1px solid var(--border-subtle)}.batch-list{padding:4px 0}.batch-item{display:flex;align-items:center;justify-content:space-between;padding:8px 12px;font-size:13px;border-bottom:1px solid var(--border-subtle)}.batch-item:last-child{border-bottom:none}.batch-item-info{display:flex;flex-direction:column;gap:2px;min-width:0}.batch-item-name{color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:180px}.batch-status{font-size:12px;padding:1px 6px;border-radius:4px;width:-moz-fit-content;width:fit-content}.batch-status-pending{background:var(--bg-input);color:var(--text-muted)}.batch-status-converting{background:rgba(68,138,255,.15);color:#448aff}.batch-status-completed{background:rgba(0,230,118,.12);color:var(--accent)}.batch-status-error{background:rgba(255,82,82,.12);color:var(--error)}.batch-progress{width:60px;height:4px;background:var(--bg-input);border-radius:2px;overflow:hidden;margin-left:8px}.batch-progress>div{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent-hover));border-radius:2px;transition:width .3s ease}.btn-sm{padding:4px 10px;font-size:12px}.help-overlay{position:fixed;inset:0;z-index:1000;display:flex;align-items:center;justify-content:center;background:#0a0a0f;animation:help-fade-in .2s ease}@keyframes help-fade-in{0%{opacity:0}to{opacity:1}}.help-modal{width:860px;max-width:94vw;max-height:88vh;background:var(--bg-card);border:1px solid var(--border-default);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);display:flex;flex-direction:column;overflow:hidden;animation:help-slide-up .25s ease}@keyframes help-slide-up{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.help-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--border-subtle)}.help-header h2{margin:0;font-size:18px;font-weight:600;color:var(--text-primary)}.help-close{background:none;border:none;color:var(--text-muted);font-size:18px;cursor:pointer;padding:4px 8px;border-radius:var(--radius-sm);transition:all .15s}.help-close:hover{background:var(--bg-card-hover);color:var(--text-primary)}.help-body{display:flex;flex:1;min-height:0;overflow:hidden}.help-tabs{width:160px;flex-shrink:0;padding:8px;border-right:1px solid var(--border-subtle);display:flex;flex-direction:column;gap:2px;overflow-y:auto}.help-tab{display:flex;align-items:center;gap:8px;padding:10px 12px;background:none;border:none;border-radius:var(--radius-sm);color:var(--text-secondary);font-size:13px;cursor:pointer;text-align:left;transition:all .15s}.help-tab:hover{background:var(--bg-card-hover);color:var(--text-primary)}.help-tab.active{background:var(--accent-dim);color:var(--accent)}.help-tab-icon{font-size:14px;width:20px;text-align:center}.help-content{flex:1;padding:20px 24px;overflow-y:auto}.help-content h3{margin:0 0 16px;font-size:18px;font-weight:600;color:var(--text-primary)}.help-section{margin-bottom:20px}.help-section h4{margin:0 0 8px;font-size:15px;font-weight:600;color:var(--text-accent)}.help-section p{margin:0;line-height:1.8;white-space:pre-line}.help-btn-header,.help-section p{font-size:14px;color:var(--text-secondary)}.help-btn-header{margin-left:auto;display:flex;align-items:center;gap:6px;padding:6px 14px;background:var(--bg-card);border:1px solid var(--border-default);border-radius:var(--radius-md);font-family:DM Sans,sans-serif;cursor:pointer;transition:all .15s}.help-btn-header:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-dim)}