:root {
  --bg: #f5f9fc;
  --ink: #17365d;
  --muted: #4a6f95;
  --accent: #2b6cb0;
  --line: rgba(43, 108, 176, 0.18);
  --card: rgba(255, 255, 255, 0.82);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(900px 500px at 0 0, rgba(49, 130, 206, 0.16), transparent 60%),
    var(--bg);
  font: 16px/1.7 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: var(--accent); text-underline-offset: 3px; }
.wrap { width: min(760px, calc(100% - 40px)); margin: 0 auto; padding: 42px 0 64px; }
.brand { font-weight: 800; text-decoration: none; }
header { padding-bottom: 24px; border-bottom: 1px solid var(--line); }
h1 { margin: 24px 0 8px; font-size: clamp(1.8rem, 5vw, 2.7rem); line-height: 1.15; }
h2 { margin: 0 0 10px; font-size: 1.25rem; }
h3 { margin: 18px 0 6px; font-size: 1rem; }
p, li { color: #2c5282; }
p { margin: 0 0 12px; }
ul { margin: 0; padding-left: 1.2rem; }
li { margin-bottom: 7px; }
.meta { color: var(--muted); }
section { padding: 26px 0; border-bottom: 1px solid var(--line); }
.summary, .note {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--card);
}
.summary { margin-top: 24px; }
table { width: 100%; border-collapse: collapse; color: #2c5282; }
th, td { padding: 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--ink); }
footer { margin-top: 34px; color: var(--muted); font-size: 0.9rem; }

@media (max-width: 560px) {
  .wrap { width: min(100% - 28px, 760px); padding-top: 28px; }
  table, tbody, tr, th, td { display: block; }
  thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  tr { padding: 10px 0; border-bottom: 1px solid var(--line); }
  td { padding: 3px 0; border: 0; }
}