:root {
  --ground: #F5F1EA;
  --card: #FFFDF9;
  --ink: #1C1B18;
  --secondary: #5F5A50;
  --line: #E6DFD2;
  --accent: #B8321A;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ground: #171614;
    --card: #252320;
    --ink: #F2EEE6;
    --secondary: #A8A195;
    --line: #34312C;
    --accent: #F08A6E;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  -webkit-text-size-adjust: 100%;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 16px 64px;
}

header { margin-bottom: 32px; }
header p { margin: 4px 0 0; color: var(--secondary); font-size: 14px; }

h1 { margin: 0; font-size: 28px; line-height: 1.4; }
h2 { margin: 40px 0 8px; font-size: 19px; line-height: 1.5; }

p, ul, table { margin: 0 0 16px; }
ul { padding-left: 1.4em; }
li + li { margin-top: 4px; }

a { color: var(--accent); }

.card {
  background: var(--card);
  border-radius: 16px;
  padding: 20px;
}

table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; vertical-align: top; padding: 10px 8px; border-bottom: 1px solid var(--line); }
th { width: 34%; font-weight: 700; }

.apps { list-style: none; padding: 0; display: grid; gap: 12px; }
.apps li + li { margin-top: 0; }
.apps a { display: block; text-decoration: none; color: inherit; }
.apps strong { display: block; font-size: 17px; }
.apps span { color: var(--secondary); font-size: 14px; }

footer { margin-top: 48px; color: var(--secondary); font-size: 13px; }