: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}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}#root{max-width:1280px;margin:0 auto;padding:2rem;text-align:center}.container{display:flex;flex-direction:column;align-items:center;min-height:100vh;color:#f0f0f0}.logo{height:6rem;padding:1.5rem;will-change:filter;transition:filter .3s}.logo:hover{filter:drop-shadow(0 0 2em #646cffaa)}.subtitle{color:#888;margin-bottom:3rem}.warning-banner{background:#ff4d4f;color:#fff;padding:1rem;border-radius:8px;margin-bottom:2rem;width:100%;max-width:600px}.tool-card{background:#2a2a2a;padding:2.5rem;border-radius:16px;box-shadow:0 10px 30px #0000004d;width:100%;max-width:600px;margin-bottom:3rem}.input-group{border:2px dashed #444;border-radius:12px;padding:3rem;cursor:pointer;transition:border-color .3s}.input-group:hover{border-color:#646cff}.file-label{cursor:pointer;font-size:1.2rem;color:#646cff}.options{margin:2rem 0;display:flex;justify-content:center;align-items:center;gap:1rem}select{padding:8px 16px;border-radius:6px;background:#333;color:#fff;border:1px solid #444;font-size:1rem}.convert-btn{background-color:#646cff;color:#fff;padding:1rem 2rem;font-size:1.1rem;font-weight:600;border-radius:8px;width:100%;transition:background-color .3s,transform .1s}.convert-btn:hover:not(.disabled){background-color:#535bf2}.convert-btn:active:not(.disabled){transform:scale(.98)}.convert-btn.disabled{background-color:#444;color:#777;cursor:not-allowed}.progress-container{margin-top:2rem}.log-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem;font-size:.9rem;color:#888}.clear-log-btn{background:transparent;border:1px solid #444;color:#888;padding:2px 8px;font-size:.7rem;border-radius:4px;cursor:pointer}.clear-log-btn:hover{border-color:#646cff;color:#646cff}.progress-bar{height:8px;background-color:#646cff;border-radius:4px;transition:width .3s;margin-bottom:.5rem}.log-area{background:#1a1a1a;padding:1rem;border-radius:8px;font-size:.8rem;color:#0f0;text-align:left;max-height:150px;overflow-y:auto;white-space:pre-wrap;word-break:break-all}.loading-screen{display:flex;flex-direction:column;align-items:center;gap:1.5rem}.error-message{color:#ff4d4f;text-align:center}.error-message button{margin-top:1rem;padding:.5rem 2rem;background:#646cff;border:none;border-radius:4px;color:#fff;cursor:pointer}.spinner{width:40px;height:40px;border:4px solid #333;border-top-color:#646cff;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;margin-top:2rem;max-width:1000px}.feature{padding:1.5rem;background:#1e1e1e;border-radius:12px}.feature h3{margin-top:0;color:#646cff}.feature p{font-size:.9rem;color:#999}