.btn{font-family:JetBrains Mono,monospace;font-size:11px;font-weight:500;letter-spacing:.5px;padding:12px 16px;border:none;border-radius:8px;cursor:pointer;transition:all .2s ease;text-transform:uppercase;width:100%}.btn-primary{background:var(--accent);color:var(--bg-primary);box-shadow:0 2px 8px #f0a05040}.btn-primary:hover:not(:disabled){background:#ffb060;transform:translateY(-1px);box-shadow:0 4px 12px #f0a05059}.btn-primary:disabled{opacity:.4;cursor:not-allowed;box-shadow:none}.btn-secondary{background:var(--bg-tertiary);color:var(--text-secondary);border:1px solid var(--border-subtle)}.btn-secondary:hover:not(:disabled){background:var(--border-subtle);color:var(--text-primary);border-color:var(--border-hover)}.btn-secondary:disabled{opacity:.4;cursor:not-allowed}.btn-row{display:flex;gap:10px}.btn-icon-only{flex:1;padding:10px;display:flex;align-items:center;justify-content:center;width:auto}.btn-icon-only svg{width:16px;height:16px}.transfer-row{margin-top:8px;flex-wrap:wrap}.btn-with-label{flex:1;padding:8px 10px;display:flex;align-items:center;justify-content:center;gap:6px;font-size:12px;white-space:nowrap}.btn-with-label svg{width:14px;height:14px;flex-shrink:0}.btn-icon{width:28px;height:28px;display:flex;align-items:center;justify-content:center;background:transparent;border:1px solid var(--border-subtle);border-radius:6px;color:var(--text-secondary);cursor:pointer;transition:all .15s ease}.btn-icon:hover{border-color:var(--border-hover);color:var(--text-primary);background:var(--bg-tertiary)}.btn-icon svg{width:14px;height:14px}.preview-canvas-hidden{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}.drag-handle{flex:1;padding:10px;display:flex;align-items:center;justify-content:center;background:var(--bg-tertiary);border:1px solid var(--border-subtle);border-radius:8px;color:var(--text-secondary);cursor:grab;transition:border-color .2s ease,color .2s ease}.drag-handle:hover{border-color:var(--border-hover);color:var(--text-primary)}.drag-handle:active{cursor:grabbing}.drag-handle svg{width:16px;height:16px}.drag-handle.disabled{opacity:.4;cursor:not-allowed}.app-container{position:fixed;inset:0;z-index:1;overflow:hidden}.workspace{position:fixed;inset:0;display:block}.image-area{position:fixed;inset:0 320px 0 0;background:var(--bg-primary);overflow:hidden;transition:right .3s ease}.image-area.menu-closed{right:0}.image-area.drag-over{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-glow)}.drop-zone{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;transition:opacity .3s ease}.drop-zone.hidden{opacity:0;pointer-events:none}.drop-icon{width:64px;height:64px;border:2px dashed var(--border-hover);border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:20px;transition:border-color .2s ease,transform .2s ease}.image-area.drag-over .drop-icon{border-color:var(--accent);transform:scale(1.05)}.drop-icon svg{width:28px;height:28px;stroke:var(--text-muted);transition:stroke .2s ease}.image-area.drag-over .drop-icon svg{stroke:var(--accent)}.drop-text{font-size:14px;color:var(--text-secondary);text-align:center;line-height:1.6}.drop-text strong{color:var(--text-primary);font-weight:500}.drop-hint{font-family:JetBrains Mono,monospace;font-size:11px;color:var(--text-muted);margin-top:16px;display:flex;gap:16px}.drop-hint span{display:flex;align-items:center;gap:6px}.drop-hint kbd{background:var(--bg-tertiary);padding:2px 6px;border-radius:4px;font-size:10px}.canvas-view{position:absolute;inset:0}.canvas-view.hidden{display:none}.image-close-btn{position:absolute;top:70px;right:16px;width:28px;height:28px;display:flex;align-items:center;justify-content:center;background:transparent;border:none;color:#ffffff80;cursor:pointer;z-index:15;transition:all .15s ease}.image-close-btn:hover{color:#e05050;transform:scale(1.1)}.image-close-btn svg{width:20px;height:20px;filter:drop-shadow(0 1px 2px rgba(0,0,0,.5))}.canvas-container{position:relative;width:100%;height:100%;overflow:hidden;cursor:grab}.canvas-container:active{cursor:grabbing}#mainCanvas{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);image-rendering:auto;will-change:transform}.zoom-controls{position:absolute;bottom:16px;right:16px;display:flex;align-items:center;gap:4px;background:#0a0a0be6;padding:6px 10px;border-radius:8px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:15;border:1px solid var(--border-subtle);transition:right .3s ease}.zoom-btn{width:28px;height:28px;display:flex;align-items:center;justify-content:center;background:transparent;border:none;color:var(--text-secondary);cursor:pointer;border-radius:4px;transition:all .15s ease}.zoom-btn:hover{background:var(--bg-tertiary);color:var(--text-primary)}.zoom-btn svg{width:16px;height:16px}.zoom-level{font-family:JetBrains Mono,monospace;font-size:11px;color:var(--text-secondary);min-width:48px;text-align:center;padding:0 4px}.history-controls{position:absolute;bottom:16px;left:16px;display:flex;align-items:center;gap:2px;background:#0a0a0be6;padding:4px;border-radius:8px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:15;border:1px solid var(--border-subtle)}.history-btn{width:28px;height:28px;display:flex;align-items:center;justify-content:center;background:transparent;border:none;color:var(--text-secondary);cursor:pointer;border-radius:4px;transition:all .15s ease}.history-btn:hover:not(:disabled){background:var(--bg-tertiary);color:var(--text-primary)}.history-btn:disabled{opacity:.3;cursor:not-allowed}.history-btn svg{width:14px;height:14px}.controls-panel{position:fixed;top:0;right:0;bottom:0;width:320px;background:#111113f2;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-left:1px solid var(--border-subtle);padding:68px 20px 24px;overflow-y:auto;z-index:90;transform:translate(100%);transition:transform .3s ease}.controls-panel.open{transform:translate(0)}.controls-panel::-webkit-scrollbar{width:6px}.controls-panel::-webkit-scrollbar-track{background:transparent}.controls-panel::-webkit-scrollbar-thumb{background:var(--border-subtle);border-radius:3px}.controls-panel::-webkit-scrollbar-thumb:hover{background:var(--border-hover)}.menu-toggle-tab{position:fixed;top:50%;right:320px;transform:translateY(-50%);width:24px;height:64px;display:flex;align-items:center;justify-content:center;background:#111113f2;border:1px solid var(--border-subtle);border-right:none;color:var(--text-secondary);cursor:pointer;border-radius:8px 0 0 8px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:95;transition:all .3s ease}.menu-toggle-tab:not(.open){right:0;background:#0a0a0be6;border-right:1px solid var(--border-subtle);border-radius:8px 0 0 8px}.menu-toggle-tab:hover{background:var(--bg-tertiary);color:var(--text-primary);width:28px}.menu-toggle-tab svg{width:16px;height:16px}.menu-toggle-tab .icon-open{display:block}.menu-toggle-tab .icon-close,.menu-toggle-tab.open .icon-open{display:none}.menu-toggle-tab.open .icon-close{display:block}.panel-title{font-family:JetBrains Mono,monospace;font-size:10px;text-transform:uppercase;letter-spacing:2px;color:var(--text-muted);margin-bottom:20px;padding-bottom:0;border-bottom:none;position:relative}.panel-title:after{content:"";position:absolute;left:0;bottom:-8px;width:24px;height:2px;background:var(--accent);border-radius:1px}.section-divider{border:none;border-top:1px solid var(--border-subtle);margin:20px 0 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svg{width:12px;height:12px}.slider-container{position:relative;height:4px;background:var(--bg-tertiary);border-radius:2px;cursor:pointer}.slider-fill{position:absolute;left:0;top:0;height:100%;background:linear-gradient(90deg,var(--accent-dim),var(--accent));border-radius:2px;pointer-events:none}.slider-thumb{position:absolute;top:50%;transform:translate(-50%,-50%);width:14px;height:14px;background:var(--text-primary);border-radius:50%;cursor:grab;transition:box-shadow .15s ease,transform .15s ease;box-shadow:0 1px 4px #0000004d}.slider-thumb:hover{box-shadow:0 0 0 5px var(--accent-glow),0 1px 4px #0000004d;transform:translate(-50%,-50%) scale(1.1)}.slider-thumb:active{cursor:grabbing}.slider-container input[type=range]{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer;margin:0}.actions-section{margin-top:24px;padding-top:20px;border-top:1px solid var(--border-subtle)}.actions-section .panel-title{margin-bottom:16px}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%) translateY(100px);font-family:JetBrains Mono,monospace;font-size:12px;padding:10px 20px;background:#111113f2;border:1px solid var(--border-subtle);border-radius:8px;color:var(--text-primary);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:200;opacity:0;transition:all .3s ease;pointer-events:none}.toast.visible{transform:translate(-50%) translateY(0);opacity:1}.toast.success{border-color:var(--success);color:var(--success)}#fileInput{display:none}.modal-overlay{position:fixed;inset:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:300;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal-overlay.hidden{display:none}.modal-content{background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:12px;max-width:500px;width:90%;max-height:80vh;overflow-y:auto}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px 16px;border-bottom:1px solid var(--border-subtle)}.modal-title{font-family:JetBrains Mono,monospace;font-size:14px;font-weight:500;color:var(--text-primary)}.modal-close{width:28px;height:28px;display:flex;align-items:center;justify-content:center;background:transparent;border:none;color:var(--text-secondary);cursor:pointer;font-size:18px;border-radius:4px;transition:all .15s ease}.modal-close:hover{color:var(--text-primary);background:var(--bg-tertiary)}.modal-body{padding:20px 24px}.help-sections{display:flex;flex-direction:column;gap:20px}.help-section-title{font-family:JetBrains Mono,monospace;font-size:12px;font-weight:500;color:var(--text-primary);margin-bottom:10px}.help-section-content{font-size:13px;color:var(--text-secondary);line-height:1.7}.help-section-content 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var(--border-subtle);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.processing-text{font-family:JetBrains Mono,monospace;font-size:12px;color:var(--text-secondary)}