body{font-family:Arial,sans-serif;background-color:#222;display:flex;justify-content:center;align-items:center;min-height:100vh;margin:0}.container{max-width:800px;width:90%;padding:30px;background-color:#e0e0e0;border-radius:8px;box-shadow:0 2px 4px #0000001a;margin-top:60px}.navbar{position:fixed;top:0;left:0;width:100%;background-color:#333;color:#fff;display:flex;justify-content:flex-start;align-items:center;padding:10px;z-index:100}.navbar a{color:#fff;text-decoration:none;margin-right:20px}.navbar a:hover{color:#ccc}h1,h2{color:#333}.form-group{margin-bottom:20px}.progress{height:20px;background-color:#ccc;border-radius:10px;overflow:hidden;margin-bottom:20px}.progress-bar{width:0;height:100%;background-color:#4caf50;transition:width .3s ease}#error-box,#success-box{padding:15px;margin-top:20px;border-radius:4px;font-weight:700}#error-box{background-color:#ffcccb;color:#d32f2f}#success-box{background-color:#c8e6c9;color:#388e3c}.hidden{display:none}button{padding:10px 20px;background-color:#4caf50;color:#fff;border:none;border-radius:4px;cursor:pointer;transition:background-color .3s ease}button:hover{background-color:#45a049}button:disabled{background-color:#ccc;cursor:not-allowed}#diskSpaceInfo{background-color:#f0f0f0;padding:15px;border-radius:4px;margin-bottom:20px;border:1px solid #cccccc}#link-box{margin-top:20px;display:flex;align-items:center}#fileUrl{flex-grow:1;padding:10px;border:1px solid #cccccc;border-radius:4px;font-size:14px}#copyLinkButton{margin-left:10px;padding:10px 15px;background-color:#4caf50;color:#fff;border:none;border-radius:4px;cursor:pointer;transition:background-color .3s ease}#copyLinkButton:hover{background-color:#45a049}.container p,.container li{line-height:1.6;margin-bottom:10px}.container h2{margin-top:30px}@media(max-width:850px){.container{width:95%;margin-top:60px;padding:20px}#link-box{flex-direction:column;align-items:stretch}#copyLinkButton{margin-left:0;margin-top:10px}}