:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  color: #262626;
  background: #fff;
  line-height: 1.85;
  -webkit-text-size-adjust: 100%;
}
* { box-sizing: border-box; }
body { max-width: 800px; margin: 0 auto; padding: 48px 24px 28px; overflow-wrap: anywhere; }
header { margin-bottom: 28px; }
h1 { font-size: clamp(1.5rem, 5vw, 2rem); line-height: 1.5; margin: 0; }
h2 { font-size: 1.2rem; line-height: 1.6; margin: 0 0 14px; }
p { margin: 0 0 16px; }
.app-name { color: #555; margin-bottom: 8px; font-size: .95rem; }
section { margin-top: 36px; }
ul { padding-left: 1.5em; margin: 0 0 18px; }
li { margin: 4px 0; }
a { color: #245784; text-underline-offset: 4px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 3px solid #245784; outline-offset: 5px; }
.button { display: inline-block; max-width: 100%; padding: 12px 20px; background: #292929; border: 1px solid #292929; border-radius: 5px; color: #fff; text-align: center; text-decoration: none; font-weight: 600; }
.button:hover { background: #454545; }
.button { font: inherit; font-weight: 600; cursor: pointer; }
.button:focus-visible { outline: 3px solid #245784; outline-offset: 5px; }
.app-picker { margin: 0 0 20px; padding: 16px; border: 1px solid #ccc; border-radius: 5px; }
.app-picker legend { padding: 0 6px; font-weight: 600; }
.app-picker label { display: flex; align-items: center; gap: 10px; min-height: 48px; cursor: pointer; }
.app-picker input { width: 20px; height: 20px; margin: 0; accent-color: #292929; }
.updated { margin-top: 24px; color: #555; }
footer { margin-top: 48px; padding-top: 22px; border-top: 1px solid #ddd; font-size: .875rem; color: #555; }
footer p { margin-bottom: 8px; }
footer nav { display: flex; flex-wrap: wrap; gap: 8px 24px; }
footer a { display: inline-block; padding: 8px 0; }
@media (max-width: 480px) {
  body { padding: 28px 20px 24px; }
  section { margin-top: 28px; }
}