: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}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app{min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;justify-content:center;align-items:center;padding:20px}.container{width:100%;max-width:800px;background:#fff;border-radius:20px;box-shadow:0 20px 60px #0000004d;padding:40px}.header{text-align:center;margin-bottom:40px}.header h1{font-size:3rem;color:#667eea;margin-bottom:10px;font-weight:800}.subtitle{font-size:1.2rem;color:#666;font-weight:300}.upload-section{margin-bottom:40px}.upload-section h2{font-size:1.5rem;color:#333;margin-bottom:10px}.description{color:#666;margin-bottom:20px;font-size:.95rem}.upload-area{border:2px dashed #667eea;border-radius:15px;padding:40px;text-align:center;background:#f8f9ff;transition:all .3s ease}.upload-area:hover{border-color:#764ba2;background:#f0f2ff}.file-input{width:100%;padding:15px;font-size:1rem;border:2px solid #ddd;border-radius:10px;margin-bottom:20px;cursor:pointer;transition:all .3s ease}.file-input:hover{border-color:#667eea}.file-info{display:flex;align-items:center;justify-content:center;gap:15px;margin:20px 0;padding:20px;background:#fff;border-radius:10px;box-shadow:0 2px 10px #0000001a}.file-icon{font-size:2rem}.file-details{text-align:left}.file-name{font-weight:600;color:#333;margin-bottom:5px;word-break:break-all}.file-size{font-size:.9rem;color:#666}.upload-button{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:15px 40px;font-size:1.1rem;font-weight:600;border-radius:10px;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #667eea66}.upload-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #667eea99}.upload-button:disabled{background:#ccc;cursor:not-allowed;box-shadow:none}.message{margin-top:20px;padding:15px;border-radius:10px;font-weight:500;text-align:center}.message.success{background:#d4edda;color:#155724;border:1px solid #c3e6cb}.message.error{background:#f8d7da;color:#721c24;border:1px solid #f5c6cb}.message.info{background:#d1ecf1;color:#0c5460;border:1px solid #bee5eb}.history-section{border-top:2px solid #eee;padding-top:30px}.history-section h2{font-size:1.5rem;color:#333;margin-bottom:20px}.file-list{display:flex;flex-direction:column;gap:15px}.file-item{display:flex;align-items:center;gap:15px;padding:15px;background:#f8f9ff;border-radius:10px;transition:all .3s ease}.file-item:hover{background:#f0f2ff;transform:translate(5px)}.file-time{font-size:.85rem;color:#999;margin-top:5px}.footer{text-align:center;margin-top:40px;padding-top:30px;border-top:2px solid #eee;color:#666;font-size:.9rem}.domain{margin-top:10px;font-weight:600;color:#667eea;font-size:1.1rem}@media(max-width:768px){.container{padding:20px}.header h1{font-size:2rem}.upload-area{padding:20px}}