.image-to-pdf{max-width:1000px;margin:0 auto;display:flex;flex-direction:column;gap:1.5rem}.page-header{text-align:center;color:#fff}.page-header h1{font-size:2.5rem;margin-bottom:.5rem;font-weight:700;text-shadow:2px 2px 4px rgba(0,0,0,.2)}.page-header p{font-size:1rem;opacity:.95}.upload-zone{background:#fff;border:3px dashed #ccc;border-radius:16px;padding:3rem 2rem;text-align:center;cursor:pointer;transition:all .3s ease}.upload-zone:hover{border-color:#667eea;box-shadow:0 8px 20px #0000001a}.upload-zone:hover:not(:has(.btn-primary:hover)){transform:translateY(-2px)}.upload-zone .btn-primary{transition:all .2s ease}.upload-zone .btn-primary:hover{transform:none}.upload-zone.drag-over{border-color:#667eea;background:#f0f4ff}.upload-icon{font-size:4rem;margin-bottom:1rem}.upload-zone p{color:#666;margin-bottom:1.5rem;font-size:1.1rem}.btn{padding:.8rem 2rem;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s}.btn-primary{background:#667eea;color:#fff}.btn-primary:hover{background:#5568d3;transform:translateY(-2px);box-shadow:0 4px 12px #667eea66}.image-list{background:#fff;border-radius:16px;padding:2rem;box-shadow:0 4px 12px #0000001a}.image-list h3{color:#333;margin-bottom:1.5rem;font-size:1.3rem}.images-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:1rem}.image-item{position:relative;aspect-ratio:1;border-radius:12px;overflow:hidden;border:2px solid #e0e0e0;transition:all .3s}.image-item:hover{border-color:#667eea;transform:scale(1.05);box-shadow:0 4px 12px #667eea4d}.image-item img{width:100%;height:100%;object-fit:cover}.image-overlay{position:absolute;inset:0;background:#00000080;opacity:0;transition:opacity .3s;display:flex;flex-direction:column;justify-content:space-between;padding:.5rem}.image-item:hover .image-overlay{opacity:1}.image-number{color:#fff;font-weight:700;font-size:1.2rem;text-align:center}.image-actions{display:flex;gap:.25rem;justify-content:center}.image-actions button{background:#ffffffe6;border:none;width:32px;height:32px;border-radius:6px;cursor:pointer;font-size:1rem;transition:all .2s}.image-actions button:hover:not(:disabled){background:#fff;transform:scale(1.1)}.image-actions button:disabled{opacity:.3;cursor:not-allowed}.image-actions .btn-delete{background:#ff5252;color:#fff}.image-actions .btn-delete:hover{background:#d32f2f}.options{background:#fff;border-radius:16px;padding:2rem;box-shadow:0 4px 12px #0000001a}.options h3{color:#333;margin-bottom:1.5rem;font-size:1.3rem}.option-group{margin-bottom:1.5rem}.option-group label{display:block;color:#555;margin-bottom:.5rem;font-weight:500}.option-group strong{color:#667eea;float:right}.option-group select{width:100%;padding:.75rem;border:2px solid #e0e0e0;border-radius:8px;font-size:1rem;background:#fff;cursor:pointer}.option-group select:focus{outline:none;border-color:#667eea}.option-group input[type=range]{width:100%;height:6px;border-radius:3px;background:#e0e0e0;outline:none;-webkit-appearance:none}.option-group input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:20px;height:20px;border-radius:50%;background:#667eea;cursor:pointer}.option-group input[type=range]::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:#667eea;cursor:pointer;border:none}.btn-convert{width:100%;padding:1rem;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;font-size:1.2rem;margin-top:1rem}.btn-convert:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #667eea66}.btn-convert:disabled{opacity:.6;cursor:not-allowed}@media(max-width:768px){.page-header h1{font-size:2rem}.upload-zone{padding:2rem 1rem}.upload-icon{font-size:3rem}.images-grid{grid-template-columns:repeat(3,1fr);gap:.75rem}.options{padding:1.5rem}}