.format-convert{max-width:900px;margin:0 auto;padding:2rem 1rem;display:flex;flex-direction:column;gap:1.5rem}.page-header{text-align:center}.page-header h1{font-size:2.5rem;margin-bottom:.5rem;font-weight:700;color:#fff;text-shadow:2px 2px 4px rgba(0,0,0,.2)}.page-header p{color:#fff;opacity:.95}.upload-zone{border:2px dashed #d1d5db;border-radius:16px;padding:3rem 2rem;text-align:center;transition:all .3s ease;background:#fff;cursor:pointer}.upload-zone:hover{border-color:#667eea;transform:translateY(-2px);box-shadow:0 8px 20px #0000001a}.upload-zone.drag-over{border-color:#667eea;background:#f0f4ff}.upload-content{display:flex;flex-direction:column;align-items:center;gap:.75rem;cursor:pointer}.upload-icon{font-size:3rem}.upload-content p{font-size:1.1rem;color:#374151}.upload-hint{font-size:.875rem;color:#9ca3af}.error-message{display:flex;align-items:center;gap:.5rem;padding:1rem;background:#fef2f2;border:1px solid #fecaca;border-radius:8px;color:#dc2626;margin:1rem 0}.editor{background:#fff;border-radius:16px;padding:2rem;box-shadow:0 4px 20px #00000014}.conversion-flow{display:flex;align-items:center;justify-content:center;gap:1.5rem;margin-bottom:1.5rem;padding:1rem;background:#f9fafb;border-radius:12px}.format-badge{display:flex;flex-direction:column;align-items:center;padding:1rem 2rem;border-radius:12px;min-width:120px}.format-badge.original{background:#e5e7eb}.format-badge.target{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.format-label{font-size:.7rem;text-transform:uppercase;letter-spacing:.05em;opacity:.8}.format-name{font-size:1.25rem;font-weight:700;margin:.25rem 0}.format-size{font-size:.8rem;opacity:.8}.flow-arrow{font-size:2rem;color:#9ca3af}.image-preview{margin-bottom:1.5rem}.image-container{position:relative;background:#f3f4f6;border-radius:12px;overflow:hidden;max-height:300px;display:flex;align-items:center;justify-content:center}.image-container.clickable{cursor:pointer}.image-container.clickable:after{content:"🔍 클릭하여 크게보기";position:absolute;bottom:8px;left:50%;transform:translate(-50%);background:#0009;color:#fff;padding:3px 8px;border-radius:4px;font-size:.65rem;opacity:.8;transition:opacity .2s;pointer-events:none}.image-container.clickable:hover:after{opacity:1}.image-remove-btn{position:absolute;top:8px;right:8px;width:28px;height:28px;border-radius:50%;background:#00000080;border:none;color:#fff;font-size:1rem;cursor:pointer;opacity:.7;transition:all .2s;display:flex;align-items:center;justify-content:center}.image-remove-btn:hover{opacity:1;background:#dc2626e6;transform:scale(1.1)}.image-container img{max-width:100%;max-height:300px;object-fit:contain}.options{display:flex;flex-direction:column;gap:1.25rem;padding:1.5rem;background:#f9fafb;border-radius:12px;margin-bottom:1.5rem}.option-group>label{display:block;font-size:.9rem;color:#374151;margin-bottom:.75rem}.option-group label strong{color:#667eea}.format-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:.75rem}.format-btn{display:flex;flex-direction:column;align-items:center;padding:1rem;border:2px solid #e5e7eb;background:#fff;border-radius:12px;cursor:pointer;transition:all .2s}.format-btn:hover{border-color:#667eea}.format-btn.active{border-color:#667eea;background:#667eea1a}.format-btn-name{font-size:1.1rem;font-weight:600;color:#374151}.format-btn-desc{font-size:.75rem;color:#9ca3af;margin-top:.25rem;text-align:center}input[type=range]{width:100%;height:6px;border-radius:3px;background:#e5e7eb;appearance:none;cursor:pointer}input[type=range]::-webkit-slider-thumb{appearance:none;width:18px;height:18px;border-radius:50%;background:#667eea;cursor:pointer}.range-labels{display:flex;justify-content:space-between;font-size:.75rem;color:#9ca3af;margin-top:.25rem}.file-info{display:flex;justify-content:center;padding:.75rem 1rem;background:#fff;border-radius:8px}.file-name{color:#374151;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.875rem 1.5rem;border-radius:10px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s;border:none}.btn-primary{background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #3b82f666}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{background:#f3f4f6;color:#374151}.btn-secondary:hover{background:#e5e7eb}.btn-success{background:#6b7280;color:#fff}.btn-success:hover{background:#4b5563;transform:translateY(-1px)}.btn-clipboard{background:#e5e7eb;color:#374151}.btn-clipboard:hover{background:#d1d5db}.btn-copied{background:#10b981;color:#fff}.modal-overlay{position:fixed;inset:0;background:#000000d9;display:flex;align-items:center;justify-content:center;z-index:1000;padding:2rem}.modal-content{position:relative;max-width:90vw;max-height:90vh}.modal-content img{max-width:100%;max-height:90vh;object-fit:contain;border-radius:8px}.modal-close{position:absolute;top:-40px;right:0;width:36px;height:36px;border:none;background:#fff3;color:#fff;font-size:1.25rem;border-radius:50%;cursor:pointer;transition:background .2s}.modal-close:hover{background:#ffffff4d}@media(max-width:640px){.conversion-flow{flex-direction:column;gap:.5rem}.flow-arrow{transform:rotate(90deg)}.format-buttons{grid-template-columns:1fr}.actions{flex-direction:column}.btn{width:100%;justify-content:center}}