:root{--primary-color:#007bff;--secondary-color:#6c757d;--background-color:#f8f9fa;--card-background:#fff;--text-color:#333;--border-radius:8px;--box-shadow:0 4px 8px rgba(0,0,0,.1)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:var(--background-color);color:var(--text-color);margin:0;padding:1rem}header{text-align:center;margin-bottom:1rem}header h1{font-size:2rem;font-weight:700;color:var(--primary-color)}.controls-panel{display:flex;flex-wrap:wrap;gap:1rem;background:var(--card-background);border-radius:var(--border-radius);box-shadow:var(--box-shadow);padding:1rem;margin-bottom:2rem;justify-content:center}.control-group{display:flex;flex-direction:column;gap:.5rem;min-width:150px}.control-group label{font-weight:600;font-size:.9rem}.control-group input,.control-group select{width:100%;padding:.5rem;border:1px solid #ccc;border-radius:var(--border-radius);font-size:.9rem;box-sizing:border-box}.control-group input[type=color]{padding:.1rem;height:35px}.control-group input[type=checkbox]{width:auto}.control-group-row{display:flex;align-items:center;gap:.5rem}.image-card{background:var(--card-background);box-shadow:var(--box-shadow);padding:2rem;width:100%;max-width:1200px;margin:0 auto;box-sizing:border-box}.image-card,.image-container{border-radius:var(--border-radius)}.image-container{display:flex;justify-content:center;align-items:center;min-height:400px;background-color:#f0f0f0;position:relative;overflow:auto}#imageContainer canvas{max-width:100%;object-fit:contain;display:block}.btn-secondary{background-color:var(--secondary-color);color:#fff;margin-top:1rem;padding:1rem;border-radius:var(--border-radius);text-align:center;text-decoration:none;display:inline-block;width:auto}.btn-secondary:hover{background-color:#5a6268}.bulk-generate-card{background:var(--card-background);border-radius:var(--border-radius);box-shadow:var(--box-shadow);padding:2rem;width:100%;max-width:1200px;margin:2rem auto;box-sizing:border-box}.bulk-generate-card h2{margin-top:0;color:var(--primary-color)}.bulk-generate-card textarea{width:100%;padding:.5rem;border:1px solid #ccc;border-radius:var(--border-radius);font-size:.9rem;box-sizing:border-box;resize:vertical}