/* 色は lib/ui/theme/tradeoff_theme.dart の TradeoffColors と揃える */
:root { --bg: #F2F6FC; --card: #FFFFFF; --ink: #1E2A3B; --sub: #5F6C80; --primary: #4A7FD6; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.75 -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", "Segoe UI", sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 24px 16px 64px; }
nav { display: flex; gap: 16px; margin-bottom: 16px; font-size: 14px; }
a { color: var(--primary); }
section { background: var(--card); border-radius: 16px; padding: 24px; margin-bottom: 24px; }
h1 { font-size: 24px; margin: 0 0 4px; line-height: 1.4; }
h2 { font-size: 18px; margin: 28px 0 8px; }
.meta { color: var(--sub); font-size: 14px; margin: 0 0 16px; }
ul { padding-left: 1.3em; }
td, th { text-align: left; vertical-align: top; padding: 6px 8px; border-top: 1px solid #0001; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }