:root {
  --bg: #fbf7ef;
  --card: #ffffff;
  --text: #1f2933;
  --muted: #667085;
  --line: #e7e2d8;
  --accent: #6b4eff;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrapper { width: min(960px, calc(100% - 32px)); margin: 0 auto; }
header.wrapper { padding: 44px 0 20px; }
.brand { display: inline-block; margin-bottom: 22px; font-weight: 700; }
h1 { margin: 0 0 10px; font-size: clamp(2rem, 5vw, 3.4rem); line-height: 1.08; letter-spacing: -0.04em; }
h2 { margin: 0 0 12px; font-size: 1.35rem; letter-spacing: -0.02em; }
h3 { margin: 24px 0 8px; font-size: 1.05rem; }
p, li { font-size: 1rem; }
.subtitle { color: var(--muted); max-width: 760px; font-size: 1.08rem; }
.meta { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 0; }
.meta span { background: rgba(255,255,255,.7); border: 1px solid var(--line); border-radius: 999px; padding: 6px 10px; color: var(--muted); font-size: .9rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 22px; padding: 24px; margin: 18px 0; box-shadow: 0 14px 35px rgba(37, 37, 37, .06); }
nav.card { display: flex; flex-wrap: wrap; gap: 10px; }
nav.card a { background: #f5f1ea; border-radius: 999px; padding: 8px 12px; font-size: .94rem; color: var(--text); }
ul { padding-left: 1.3rem; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; margin-top: 14px; }
th, td { text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); padding: 12px; }
th { color: var(--muted); font-size: .9rem; }
.notice { background: #fff8db; border: 1px solid #f3dda1; color: #5f4700; border-radius: 18px; padding: 14px 16px; margin-top: 18px; }
.small { color: var(--muted); font-size: .92rem; }
footer.wrapper { padding: 24px 0 48px; }
code { background: #f5f1ea; border-radius: 6px; padding: 2px 5px; }
@media (max-width: 640px) { .card { padding: 18px; border-radius: 18px; } th, td { padding: 10px 8px; } }