.converter-container{color:#333;max-width:900px;margin:auto;padding:2rem;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}.dark-mode .converter-container{color:#e0e0e0;background-color:#121212}.tabs{justify-content:center;gap:10px;margin-bottom:20px;display:flex}.tabs button{cursor:pointer;color:#333;background:#f1f1f1;border:none;border-radius:5px;padding:10px 16px;transition:background .3s}.tabs button:hover{background:#ddd}.tabs button.active{color:#fff;background:#007bff;font-weight:700}.dark-mode .tabs button{color:#eee;background:#2c2c2c}.dark-mode .tabs button:hover{background:#444}.dark-mode .tabs button.active{color:#fff;background:#2196f3}.drop-area{text-align:center;background:#fafafa;border:2px dashed #ccc;border-radius:10px;padding:2rem;transition:border-color .3s}.drop-area:hover{border-color:#007bff}.dark-mode .drop-area{background:#1e1e1e;border-color:#555}.dark-mode .drop-area:hover{border-color:#2196f3}.button-group{justify-content:center;gap:1rem;margin-top:1rem;display:flex}.button-group button,.convert-btn{color:#fff;cursor:pointer;background:#007bff;border:none;border-radius:5px;padding:10px 16px;font-weight:500;transition:background .2s}.button-group button:hover,.convert-btn:hover{background:#0056b3}.dark-mode .button-group button,.dark-mode .convert-btn{color:#fff;background:#2196f3}.dark-mode .button-group button:hover,.dark-mode .convert-btn:hover{background:#1976d2}.format-selector,.dropdown-group{justify-content:center;align-items:center;gap:.5rem;margin:1rem 0;display:flex}.dropdown-group select{border:1px solid #ccc;border-radius:4px;padding:6px 8px}.dark-mode .dropdown-group select{color:#fff;background-color:#2c2c2c;border:1px solid #555}.resize-inputs,.watermark-input{justify-content:center;gap:1rem;margin:1rem 0;display:flex}.resize-inputs input,.watermark-input input{border:1px solid #ccc;border-radius:4px;width:100px;padding:8px}.dark-mode .resize-inputs input,.dark-mode .watermark-input input{color:#fff;background-color:#2c2c2c;border:1px solid #555}.preview-section,.history{margin-top:2rem}.preview-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:1rem;margin-top:1rem;display:grid}.preview-box{text-align:center;background:#fff;border:1px solid #ddd;border-radius:6px;padding:10px}.dark-mode .preview-box{background:#2a2a2a;border-color:#444}.preview-box img,.preview-box object{-o-object-fit:contain;object-fit:contain;max-width:100%;max-height:100px}.history-header{justify-content:space-between;align-items:center;margin-bottom:.5rem;display:flex}.svg-code{white-space:pre-wrap;background:#f0f0f0;border-radius:4px;max-height:200px;margin-top:.5rem;padding:.75rem;font-family:monospace;font-size:.85rem;overflow-x:auto}.dark-mode .svg-code{color:#eee;background:#1e1e1e}.tooltip-icon{cursor:help;color:#888;margin-left:5px;font-size:.9rem;font-weight:700}.dark-mode .tooltip-icon{color:#aaa}