: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;font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif}body{background-color:#f0f2f5;margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}.app-container{width:100%;max-width:600px;margin:0 auto;display:flex;flex-direction:column;align-items:center;justify-content:center}.header-section{margin-bottom:2rem}.made-by{color:#646cff;font-size:.9rem;font-weight:700;text-transform:uppercase;letter-spacing:2px;margin:0;opacity:.9}.main-title{margin-top:10px;font-size:2.5rem;color:#1a1a1a;line-height:1.1}.card{background-color:#fff;padding:2.5rem;border-radius:16px;box-shadow:0 10px 30px #0000001a;width:100%;text-align:center;transition:transform .2s}.card:hover{transform:translateY(-2px)}.instruction{color:#666;margin-bottom:20px;font-size:1.1rem}.file-input{display:block;margin:20px auto;padding:10px;border:2px dashed #ccc;border-radius:8px;width:80%;cursor:pointer}.file-input:hover{border-color:#646cff;background-color:#f9f9ff}.convert-btn{background-color:#646cff;color:#fff;padding:12px 24px;font-size:1rem;font-weight:700;border:none;border-radius:8px;cursor:pointer;transition:background-color .3s;margin-top:10px}.convert-btn:hover{background-color:#535bf2}.convert-btn:disabled{background-color:#a5a5a5;cursor:not-allowed}.result-section{margin-top:30px;padding-top:20px;border-top:1px solid #eee;animation:fadeIn .5s ease-in}.audio-player{width:100%;margin:15px 0;outline:none}.download-link{display:inline-block;color:#646cff;text-decoration:none;font-weight:700;border:1px solid #646cff;padding:8px 16px;border-radius:20px;transition:all .2s}.download-link:hover{background-color:#646cff;color:#fff}.error-msg{color:#d32f2f;background-color:#ffebee;padding:10px;border-radius:4px;margin-top:15px}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}