:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --text: #141824;
  --muted: #5c6578;
  --line: #e1e5f0;
  --accent: #3730a3;
  --accent-soft: #eef0ff;
  --ok: #0f6b4c;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font-family: var(--sans); line-height: 1.55; }
body { min-height: 100vh; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); }
h1, h2, h3, p { margin: 0; }
h1 { font-size: clamp(32px, 5vw, 46px); letter-spacing: -0.03em; line-height: 1.15; }
h2 { font-size: clamp(22px, 3vw, 30px); letter-spacing: -0.02em; margin: 28px 0 10px; }
h3 { font-size: 18px; margin: 16px 0 8px; }
.wrap { width: min(1080px, calc(100% - 32px)); margin: 0 auto; }
header.site { background: #fff; border-bottom: 1px solid var(--line); }
header.site .wrap { display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: center; padding: 14px 0; }
nav { display: flex; flex-wrap: wrap; gap: 12px 16px; }
nav a { text-decoration: none; font-weight: 650; }
.hero { padding: 36px 0 8px; }
.eyebrow { color: var(--accent); font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
.lead { margin-top: 12px; font-size: 18px; max-width: 44rem; }
.note { color: var(--muted); margin-top: 8px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin: 12px 0 20px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; }
.card .k { color: var(--muted); font-size: 13px; }
.card .v { font-family: var(--mono); font-size: 15px; margin-top: 4px; word-break: break-word; }
.stamp { display: inline-block; background: var(--accent-soft); color: var(--accent); border-radius: 999px; padding: 2px 8px; font-size: 12px; font-weight: 700; }
table { width: 100%; border-collapse: collapse; background: #fff; margin: 10px 0 18px; }
th, td { border: 1px solid var(--line); text-align: left; padding: 8px 10px; vertical-align: top; font-size: 14px; }
th { background: #fafbff; }
pre, code { font-family: var(--mono); }
pre { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 12px; overflow: auto; }
figure { margin: 0 0 18px; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 10px; }
figcaption { color: var(--muted); font-size: 14px; margin-top: 8px; }
footer { border-top: 1px solid var(--line); margin-top: 28px; padding: 18px 0 32px; color: var(--muted); }
ul { margin: 8px 0 8px 1.2rem; padding: 0; }
.file-list { columns: 1; }
@media (min-width: 800px) { .file-list { columns: 2; } }
@media (max-width: 640px) {
  .wrap { width: min(1080px, calc(100% - 20px)); }
  th, td { font-size: 13px; white-space: nowrap; }
  table { display: block; width: 100%; overflow-x: auto; }
}