:root { --ink: #1b2440; --soft: #4a5a7a; --paper: #ffffff; --bg: #c9d4f8; --line: #dce4fa; --accent: #6b3fd6; }
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: linear-gradient(180deg, #a6e9f5, #c9b8f5) fixed; color: var(--ink);
  font: 16px/1.7 system-ui, -apple-system, 'Apple SD Gothic Neo', 'Malgun Gothic', 'Noto Sans KR', 'Hiragino Sans', 'PingFang SC', sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 16px 16px 48px; }
header { text-align: center; padding: 20px 0 8px; }
header .logo { border-radius: 18px; box-shadow: 0 4px 0 rgba(27, 36, 64, 0.12); }
header .brand { font-weight: 800; font-size: 30px; line-height: 1.2; margin-top: 8px; }
h1 { font-size: 24px; margin: 14px 0 0; }
h2 { font-size: 18px; margin: 26px 0 6px; color: var(--accent); }
p, li { margin: 6px 0; word-break: keep-all; overflow-wrap: anywhere; }
ul { padding-left: 1.3em; }
a { color: #2f62d8; word-break: break-all; }
.card { background: var(--paper); border-radius: 22px; padding: 6px 20px 20px; box-shadow: 0 6px 0 rgba(27, 36, 64, 0.08); }
.meta { color: var(--soft); font-size: 14px; text-align: center; margin: 4px 0 0; }
.tabs { display: flex; justify-content: center; gap: 8px; margin: 14px 0 10px; }
.tabs button { font: inherit; font-weight: 700; padding: 8px 20px; border-radius: 999px; border: 0; background: rgba(255, 255, 255, 0.7); color: var(--soft); cursor: pointer; }
.tabs button[aria-pressed='true'] { background: var(--ink); color: #fff; }
html[data-lang='ko'] section[lang='en'], html[data-lang='en'] section[lang='ko'] { display: none; }
footer { text-align: center; margin-top: 22px; font-size: 14px; }
footer a { margin: 0 8px; white-space: nowrap; }
.links { display: grid; gap: 10px; margin: 18px 0; }
.links a { display: block; background: #fff; border-radius: 16px; padding: 14px 16px; text-decoration: none; font-weight: 700; box-shadow: 0 4px 0 rgba(27, 36, 64, 0.08); }