:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}#app{width:100%;max-width:600px;margin:0 auto;padding:2rem}.container{background:#1a1a1a;border-radius:12px;padding:2.5rem;box-shadow:0 4px 6px #0000004d}h1{font-size:2.5em;line-height:1.1;margin-top:0;margin-bottom:2rem;text-align:center;background:linear-gradient(135deg,#646cff,#535bf2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.upload-area{display:flex;flex-direction:column;gap:1rem}#fileInput{display:none}.file-label{display:block;padding:3rem 2rem;border:2px dashed #646cff;border-radius:8px;cursor:pointer;transition:all .3s;background:#2a2a2a;text-align:center}.file-label:hover{border-color:#535bf2;background:#333}.file-label.dragover{border-color:#535bf2;background:#333;transform:scale(1.02)}.file-label.has-file{border-color:#4caf50;background:#2d4a2e}#fileName{font-size:1.1em;color:#fff}button{border-radius:8px;border:1px solid transparent;padding:.8em 1.5em;font-size:1.1em;font-weight:600;font-family:inherit;background:linear-gradient(135deg,#646cff,#535bf2);color:#fff;cursor:pointer;transition:all .3s}button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 12px #646cff66}button:disabled{opacity:.5;cursor:not-allowed}.status{margin-top:1.5rem;padding:1rem;border-radius:8px;text-align:center;font-weight:500;display:none}.status.loading{display:block;background:#2a4a6a;color:#81c3ff;border:1px solid #3b5f8f}.status.success{display:block;background:#2d4a2e;color:#81ff81;border:1px solid #4caf50}.status.error{display:block;background:#4a2d2d;color:#ff8181;border:1px solid #af4c4c}.result{margin-top:1.5rem}.success-box{background:#2d4a2e;border:2px solid #4caf50;border-radius:8px;padding:1.5rem;text-align:center}.success-box h3{margin-top:0;color:#81ff81;font-size:1.5em}.success-box p{margin:1rem 0;color:#fff}.download-btn{display:inline-block;margin-top:1rem;padding:.8em 2em;background:#4caf50;color:#fff;text-decoration:none;border-radius:8px;font-weight:600;transition:all .3s}.download-btn:hover{background:#45a049;transform:translateY(-2px);box-shadow:0 4px 12px #4caf5066}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}.container{background:#f5f5f5;box-shadow:0 4px 6px #0000001a}.file-label{background:#fff;border-color:#646cff}.file-label:hover,.file-label.dragover{background:#f0f0f0}.file-label.has-file{background:#e8f5e9;border-color:#4caf50}.status.loading{background:#e3f2fd;color:#1976d2;border-color:#2196f3}.status.success{background:#e8f5e9;color:#2e7d32;border-color:#4caf50}.status.error{background:#ffebee;color:#c62828;border-color:#f44336}.success-box{background:#e8f5e9}.success-box h3{color:#2e7d32}.success-box p{color:#213547}}