: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}}.converter-page{font-family:Inter,sans-serif;max-width:900px;margin:50px auto;text-align:center}.header-section{margin-bottom:40px}.dropzone{background:linear-gradient(135deg,#5ea3db,#4a90e2);border:2px dashed rgba(255,255,255,.5);border-radius:12px;padding:60px;color:#fff;cursor:pointer;transition:transform .2s ease;box-shadow:0 10px 25px #0000001a}.dropzone:hover{transform:translateY(-2px);background:linear-gradient(135deg,#6bb0e8,#5ba0f2)}.choose-file-btn{background:#fff;color:#4a90e2;padding:12px 24px;border-radius:6px;font-weight:700;display:inline-block;margin-bottom:15px}.preview-container{margin-top:30px;border:1px solid #ddd;border-radius:8px;overflow:hidden;background:#f9f9f9}.action-bar{padding:20px;background:#fff;border-bottom:1px solid #eee;display:flex;justify-content:space-between;align-items:center}.convert-btn{background:#27ae60;color:#fff;border:none;padding:12px 30px;border-radius:5px;font-size:1rem;cursor:pointer;font-weight:600}.convert-btn:disabled{background:#95a5a6}.viewer-window{height:500px;overflow-y:auto;text-align:left;padding:20px}