:root {
  color-scheme: light;
  --ink: #202124;
  --muted: #62666d;
  --line: #e7e9ee;
  --blue: #0066ff;
  --soft: #f4f7fb;
  --white: #ffffff;
}

* { box-sizing: border-box; }

html { font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif; background: var(--soft); color: var(--ink); }
body { margin: 0; line-height: 1.68; }
a { color: var(--blue); text-underline-offset: 3px; }
.shell { width: min(100% - 32px, 820px); margin: 0 auto; }
header { background: var(--white); border-bottom: 1px solid var(--line); }
.top { min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { color: var(--ink); font-size: 19px; font-weight: 800; text-decoration: none; letter-spacing: -0.02em; }
nav { display: flex; flex-wrap: wrap; gap: 14px; font-size: 14px; }
main { background: var(--white); margin: 24px auto 48px; padding: clamp(24px, 5vw, 52px); border: 1px solid var(--line); border-radius: 22px; box-shadow: 0 12px 32px rgba(24, 34, 51, .05); }
h1 { margin: 0 0 8px; font-size: clamp(28px, 7vw, 42px); line-height: 1.2; letter-spacing: -0.035em; }
h2 { margin: 42px 0 12px; padding-top: 8px; font-size: 22px; line-height: 1.35; letter-spacing: -0.02em; }
h3 { margin: 28px 0 8px; font-size: 18px; }
p, li { font-size: 16px; }
.meta { color: var(--muted); margin: 0 0 30px; font-size: 14px; }
.notice { margin: 22px 0; padding: 16px 18px; border-left: 4px solid var(--blue); border-radius: 10px; background: #f2f7ff; }
.table-wrap { overflow-x: auto; margin: 16px 0; }
table { width: 100%; border-collapse: collapse; min-width: 620px; font-size: 14px; }
th, td { padding: 12px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
th { background: var(--soft); }
ul, ol { padding-left: 22px; }
footer { color: var(--muted); padding: 0 0 36px; font-size: 13px; text-align: center; }
.mail { display: inline-flex; padding: 10px 14px; border-radius: 999px; background: var(--blue); color: white; font-weight: 700; text-decoration: none; }

@media (max-width: 620px) {
  .top { align-items: flex-start; flex-direction: column; padding: 16px 0; }
  main { width: 100%; margin-top: 0; border-left: 0; border-right: 0; border-radius: 0; }
  .shell { width: min(100% - 24px, 820px); }
  header .shell { width: min(100% - 32px, 820px); }
}