:root {
  --bg: #fafbfa; --fg: #14161a; --muted: #5b6470; --card: #ffffff; --line: #e3e7e5;
  --accent: #00a862; --accent-fg: #ffffff; --warn-bg: #fff6e0; --warn-line: #f0d48a; --code: #eef2f0;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1113; --fg: #e8ecea; --muted: #99a3ad; --card: #171a1d; --line: #262b2f;
    --accent: #00e682; --accent-fg: #06150d; --warn-bg: #2a2310; --warn-line: #5a4a1a; --code: #1e2327;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--fg); line-height: 1.65;
  font-family: "Pretendard", "Malgun Gothic", "Apple SD Gothic Neo", system-ui, sans-serif;
}
.wrap { max-width: 880px; margin: 0 auto; padding: 0 16px; }
header { padding: 56px 0 24px; }
.brand { display: flex; align-items: center; gap: 14px; }
.brand img { width: 56px; height: 56px; border-radius: 14px; }
h1 { font-size: 28px; margin: 0; line-height: 1.25; }
.badge { display: inline-block; margin-left: 8px; padding: 2px 10px; border-radius: 999px; font-size: 13px; font-weight: 600; background: var(--accent); color: var(--accent-fg); vertical-align: middle; }
.lead { margin: 16px 0 0; font-size: 17px; color: var(--muted); }
.notice { margin: 20px 0 0; padding: 12px 16px; border: 1px solid var(--warn-line); background: var(--warn-bg); border-radius: 10px; font-size: 14.5px; }
section { margin: 36px 0; }
h2 { font-size: 20px; margin: 0 0 12px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.dl { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; justify-content: space-between; }
.sub { color: var(--muted); font-size: 14px; }
.btn { display: inline-block; padding: 12px 22px; border-radius: 10px; background: var(--accent); color: var(--accent-fg); font-weight: 700; text-decoration: none; }
.btn[aria-disabled="true"] { opacity: .5; pointer-events: none; }
dl.meta { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; margin: 16px 0 0; font-size: 14.5px; }
dl.meta dt { color: var(--muted); }
dl.meta dd { margin: 0; min-width: 0; }
code, .hash { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; background: var(--code); border-radius: 6px; padding: 1px 6px; font-size: 13px; overflow-wrap: anywhere; }
button.small { margin-left: 6px; padding: 2px 10px; font-size: 12.5px; border: 1px solid var(--line); background: var(--card); color: var(--fg); border-radius: 6px; cursor: pointer; }
.hint { margin: 14px 0 0; font-size: 13.5px; color: var(--muted); }
.grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid .card { padding: 16px; }
.grid h3 { margin: 0 0 6px; font-size: 16px; }
.grid p { margin: 0; color: var(--muted); font-size: 14.5px; }
ol, ul { padding-left: 22px; margin: 8px 0; }
li { margin: 6px 0; }
a { color: var(--accent); }
footer { margin: 48px 0 40px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13.5px; }
@media (max-width: 520px) { h1 { font-size: 23px; } header { padding-top: 36px; } }