/* duriban — minimal static site
   No external fonts, no CDN, no scripts. */

:root {
  --ink: #1f2328;
  --ink-soft: #565d66;
  --ink-faint: #767e88;
  --line: #e3e6ea;
  --bg: #ffffff;
  --accent: #1f5d8c;
  --accent-hover: #123f60;
  --maxw: 720px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Apple SD Gothic Neo",
          "Malgun Gothic", "맑은 고딕", "Noto Sans KR", Roboto, "Helvetica Neue",
          Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.75;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---- links ---- */

a {
  color: var(--accent);
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

a:hover { color: var(--accent-hover); }

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 10px 16px;
  z-index: 10;
}

.skip-link:focus {
  left: 0;
  color: #fff;
}

/* ---- hero ---- */

.hero {
  padding: 72px 0 40px;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 14px;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}

h1 {
  margin: 0 0 20px;
  font-size: 2.25rem;
  line-height: 1.25;
  letter-spacing: -0.01em;
  font-weight: 700;
}

h1 .latin {
  color: var(--ink-soft);
  font-weight: 500;
}

.lead {
  margin: 0;
  font-size: 1.125rem;
  color: var(--ink);
  max-width: 34em;
}

.lead-en {
  margin-top: 8px;
  font-size: 1rem;
  color: var(--ink-soft);
}

/* ---- sections ---- */

.section {
  padding: 40px 0;
  border-bottom: 1px solid var(--line);
}

h2 {
  margin: 0 0 14px;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 600;
}

.section p { margin: 0; }

p.en {
  margin-top: 10px;
  color: var(--ink-soft);
  font-size: 0.9375rem;
}

/* ---- contact list ---- */

.contact {
  margin: 0;
  display: grid;
  gap: 18px;
}

.contact dt {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--ink-faint);
  margin-bottom: 2px;
}

.contact dd { margin: 0; }

.contact dd .en,
.contact dd span.en {
  display: block;
  color: var(--ink-soft);
  font-size: 0.9375rem;
}

.en-inline {
  font-weight: 400;
  color: var(--ink-faint);
}

/* ---- footer ---- */

.footer {
  padding: 36px 0 64px;
  font-size: 0.875rem;
  color: var(--ink-soft);
}

.biz { margin: 0 0 24px; }

.biz-row {
  display: flex;
  gap: 14px;
  padding: 5px 0;
  align-items: baseline;
}

.biz dt {
  flex: 0 0 96px;
  color: var(--ink-faint);
}

.biz dd { margin: 0; }

.biz dd .en {
  display: block;
  color: var(--ink-faint);
}

.footer-bottom {
  margin: 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--ink-faint);
}

.sep { padding: 0 8px; }

/* ---- privacy page ---- */

.doc h1 {
  font-size: 1.625rem;
  margin-bottom: 8px;
}

.doc .meta {
  margin: 0 0 8px;
  color: var(--ink-faint);
  font-size: 0.875rem;
}

.doc h3 {
  margin: 0 0 8px;
  font-size: 1rem;
  font-weight: 600;
}

.doc h3.mt { margin-top: 28px; }

.doc .section p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.9375rem;
}

.doc ul {
  margin: 0;
  padding-left: 1.2em;
  color: var(--ink-soft);
  font-size: 0.9375rem;
}

.doc ul li { margin-bottom: 2px; }

.doc .hero .meta + .meta { margin-top: 4px; }

.note {
  margin: 0;
  padding: 16px 18px;
  background: #f6f8fa;
  border-left: 3px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.back {
  display: inline-block;
  padding: 28px 0 64px;
  font-size: 0.9375rem;
}

/* ---- mobile ---- */

@media (max-width: 480px) {
  body { font-size: 16px; }
  .hero { padding: 48px 0 32px; }
  h1 { font-size: 1.875rem; }
  h1 .latin { display: block; font-size: 1.5rem; }
  .lead { font-size: 1.0625rem; }
  .section { padding: 32px 0; }
  .biz-row { display: block; }
  .biz dt { margin-bottom: 0; }
}