:root{font-family:Inter,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}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}#app{max-width:1280px;margin:0 auto;padding:2rem;text-align:center}.btn_area{display:flex;justify-content:center;align-items:center;flex-direction:column;margin-top:20px}.btn{padding:10px 20px;font-size:16px;color:#fff;background-color:#3498db;border:none;border-radius:5px;cursor:pointer;transition:background-color .3s ease}.btn:hover{background-color:#2980b9}.btn:active{background-color:#1f6391}.btn[disabled]{background-color:#95a5a6;cursor:not-allowed}.btn p{font-family:Noto Sans JP,sans-serif;font-weight:700;font-size:1.3rem}.spinner{width:50px;height:50px;border:5px solid rgba(0,0,0,.1);border-top-color:#3498db;border-radius:50%;animation:spin 1s linear infinite;margin:20px auto}.meta{margin-top:20px;font-family:Noto Sans JP,sans-serif;font-weight:700;font-size:1.3rem}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.footer{position:fixed;left:0;bottom:0;width:100%;height:32px;background-color:#f5f5f5;color:#333;text-align:center}.footer p{margin-top:6px;margin-right:6px;font-size:14px;width:100%;text-align:right}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}