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#667eea66}.submit-button:active{transform:translateY(0)}.preview-container{width:100vw;height:100vh;display:flex;flex-direction:column;background:#f5f5f5}.preview-header{background:#fff;padding:1rem 2rem;box-shadow:0 2px 4px #0000001a;display:flex;justify-content:space-between;align-items:center}.preview-header h2{margin:0;font-size:1.5rem;color:#333}.preview-controls{display:flex;align-items:center;gap:2rem}.control-hint{margin:0;color:#666;font-size:.875rem}.preview-controls button{padding:.5rem 1rem;background:#007bff;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:.875rem;transition:background .2s}.preview-controls button:hover{background:#0056b3}.canvas-container{flex:1;width:100%;overflow:hidden}.loading-message,.error-message{display:flex;flex-direction:column;justify-content:center;align-items:center;height:100%;gap:1rem}.loading-message p,.error-message p{font-size:1.125rem;color:#666;margin:0}.error-message button{padding:.5rem 1.5rem;background:#dc3545;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:1rem;transition:background .2s}.error-message button:hover{background:#c82333}#root{width:100%;height:100vh;margin:0;padding:0;background:#0a0a0a}.App{width:100%;height:100vh;display:flex;flex-direction:column}