:root {
  color: #244b57;
  background: #e7f7f4;
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", "Noto Sans", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }

[data-language] { display: none; }
html[data-language-ready] [data-language]:not([hidden]) { display: revert; }

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 12% 8%, rgba(255,255,255,.9) 0 42px, transparent 43px),
    radial-gradient(circle at 88% 19%, rgba(255,255,255,.62) 0 25px, transparent 26px),
    linear-gradient(180deg, #b9eee7 0, #e9f8f5 260px, #f8f5ed 100%);
}

a { color: #267d7c; }

.site-shell {
  width: min(100% - 28px, 780px);
  margin: 0 auto;
  padding: 34px 0 56px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.brand {
  color: #23636b;
  font-size: 18px;
  font-weight: 850;
  letter-spacing: -.04em;
  text-decoration: none;
}

.brand::before { content: "◌"; margin-right: 7px; color: #ff9170; }

.document-card {
  overflow: hidden;
  border: 1px solid rgba(64,132,132,.14);
  border-radius: 28px;
  background: rgba(255,253,249,.96);
  box-shadow: 0 24px 70px rgba(34,88,91,.14);
}

.document-hero {
  padding: 34px 34px 28px;
  background:
    radial-gradient(circle at 90% 10%, rgba(255,255,255,.8) 0 48px, transparent 49px),
    linear-gradient(145deg, #dff7f2, #c8eee7);
}

.document-hero p { margin: 0 0 5px; color: #4d918d; font-size: 12px; font-weight: 800; }
.document-hero h1 { margin: 0; color: #214f5a; font-size: clamp(28px, 7vw, 40px); letter-spacing: -.055em; }
.document-hero small { display: block; margin-top: 12px; color: #6b8587; }

.language-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  padding: 16px 34px 0;
}

.language-picker button {
  min-height: 34px;
  padding: 0 12px;
  color: #527779;
  border: 1px solid rgba(64,132,132,.16);
  border-radius: 999px;
  background: #f4faf8;
  font: inherit;
  font-size: 12px;
  font-weight: 750;
  cursor: pointer;
}

.language-picker button[aria-pressed="true"] { color: #fff; background: #3eaaa2; }

.document-body { padding: 14px 34px 38px; }
.document-body section { padding: 17px 0; border-bottom: 1px solid rgba(64,132,132,.1); }
.document-body section:last-child { border-bottom: 0; }
.document-body h2 { margin: 0 0 9px; color: #2d6268; font-size: 18px; letter-spacing: -.035em; }
.document-body p, .document-body li { color: #586f73; font-size: 14px; line-height: 1.72; }
.document-body p { margin: 0; }
.document-body ul { margin: 0; padding-left: 20px; }
.document-body .notice { padding: 14px 16px; border-radius: 14px; background: #eef8f5; }

.site-footer { padding: 20px 8px 0; color: #6d8889; font-size: 12px; text-align: center; }
.site-footer a { margin: 0 6px; }

.home-links { display: grid; gap: 12px; padding: 28px 34px 36px; }
.home-links a { padding: 17px 18px; color: #2f686b; border: 1px solid rgba(64,132,132,.13); border-radius: 17px; background: #f4faf8; font-weight: 800; text-decoration: none; }

@media (max-width: 560px) {
  .site-shell { width: min(100% - 20px, 780px); padding-top: 18px; }
  .site-header { padding: 0 4px; }
  .document-card { border-radius: 23px; }
  .document-hero { padding: 28px 22px 23px; }
  .language-picker { padding: 14px 22px 0; }
  .document-body { padding: 10px 22px 30px; }
  .document-body p, .document-body li { font-size: 13.5px; }
  .home-links { padding: 22px; }
}