:root {
  --ground: #ffffff;
  --ink: #16181f;
  --ink-2: #4d5462;
  --ink-3: #7b8394;
  --line: #e3e6ec;
  --accent: #00806a;
  --accent-wash: #e6f4f0;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ground: #12121c;
    --ink: #f3f4f7;
    --ink-2: #a6abb8;
    --ink-3: #7c8393;
    --line: #2a2d3a;
    --accent: #00d6a6;
    --accent-wash: #0f2e2b;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo",
    "Pretendard", "Malgun Gothic", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  word-break: keep-all;
  overflow-wrap: break-word;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 48px 20px 96px; }
header { border-bottom: 1px solid var(--line); padding-bottom: 24px; margin-bottom: 32px; }
.brand {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .04em;
  color: var(--accent); background: var(--accent-wash);
  padding: 4px 10px; border-radius: 6px; text-decoration: none; margin-bottom: 16px;
}
h1 { margin: 0 0 8px; font-size: 28px; line-height: 1.3; letter-spacing: -.02em; }
.meta { margin: 0; color: var(--ink-3); font-size: 14px; }
h2 {
  margin: 40px 0 12px; font-size: 19px; letter-spacing: -.01em;
  padding-top: 20px; border-top: 1px solid var(--line);
}
h2:first-of-type { border-top: 0; padding-top: 0; }
h3 { margin: 24px 0 8px; font-size: 16px; }
p, li { color: var(--ink-2); }
li { margin-bottom: 6px; }
strong { color: var(--ink); }
table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 15px; display: block; overflow-x: auto; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--ink); font-weight: 600; white-space: nowrap; }
td { color: var(--ink-2); }
.note {
  background: var(--accent-wash); border-left: 3px solid var(--accent);
  padding: 14px 16px; border-radius: 0 8px 8px 0; margin: 20px 0;
}
.note p { margin: 0; color: var(--ink); font-size: 15px; }
footer { margin-top: 56px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--ink-3); font-size: 14px; }
a { color: var(--accent); }
.todo { background: #ffe9a8; color: #6b4d00; padding: 1px 6px; border-radius: 4px; font-weight: 600; }
@media (prefers-color-scheme: dark) { .todo { background: #4a3a00; color: #ffd968; } }