body { margin: 0; background: #ffffff; color: #111111; font-family: -apple-system, "Hiragino Sans", sans-serif; }
main { max-width: 480px; margin: 0 auto; padding: 24px 16px; }
h1 { font-size: 20px; }
button { display: block; width: 100%; padding: 14px; margin-top: 16px; border: 0; border-radius: 8px; background: #111111; color: #ffffff; font-size: 16px; }
button[disabled] { opacity: 0.5; }
textarea { width: 100%; box-sizing: border-box; margin-top: 16px; font-family: monospace; font-size: 12px; }
#status { margin-top: 16px; min-height: 24px; overflow-wrap: anywhere; }