.app-wrapper{margin:1rem;background:#f2f2f2;font-family:Arial,sans-serif;color:#333;max-height:750px!important;box-sizing:border-box}.tab-container{background:#fff;max-width:800px;margin:0 auto;border-radius:8px;box-shadow:0 2px 6px rgba(0,0,0,.2);overflow:hidden}.tabs{display:flex;border-bottom:1px solid #ddd;background:linear-gradient(90deg,#2c3e50,#34495e)}.tab-button{flex:1;padding:1rem;border:none;cursor:pointer;font-size:1rem;font-weight:700;transition:background 0.2s;background:transparent;color:#fff}.tab-button:hover{background:rgba(255,255,255,.15)}.tab-button.active{background:linear-gradient(90deg,#34495e,#2c3e50);border-bottom:3px solid #3498db;color:#fff}.tab-content{display:none;padding:1.5rem}.tab-content.active{display:block}.dropzone{width:100%;height:450px;border:2px dashed #ccc;border-radius:8px;position:relative;cursor:pointer;display:flex;align-items:center;justify-content:center;margin-bottom:1rem;transition:border-color 0.3s}.dropzone.highlight{border-color:#3498db}.dropzone-prompt{color:#666;text-align:center}#previewImg{max-width:100%;max-height:100%;display:none}.status-area{font-weight:700;color:#555;min-height:24px;margin-bottom:8px}.clamp-message{color:red;font-weight:700;margin-bottom:8px;display:none}.gradient-button{background:linear-gradient(90deg,#ff7a18,#af002d 70%);color:#fff;border:none;border-radius:6px;padding:.8rem 1.5rem;font-size:1.1rem;cursor:pointer;transition:transform 0.2s,opacity 0.2s;margin-top:1rem;min-width:160px;text-align:center;display:inline-block;white-space:nowrap}.gradient-button:hover{transform:scale(1.02);opacity:.9}.gradient-button:disabled{opacity:.5;cursor:not-allowed}.after-preview{width:100%;border:2px dashed #ccc;border-radius:8px;display:flex;align-items:center;justify-content:center;margin-bottom:1rem;height:450px}#upscaledImg{max-width:100%;max-height:100%;display:none}.try-another-btn{background:linear-gradient(90deg,#1abc9c,#9b59b6);color:#fff;border:none;border-radius:6px;padding:.8rem 1.5rem;font-size:1.1rem;cursor:pointer;transition:transform 0.2s,opacity 0.2s;margin-top:1rem;min-width:160px;text-align:center;display:inline-block;white-space:nowrap}.try-another-btn:hover{transform:scale(1.02);opacity:.9}