/* 공개 사이트 — GEO 친화적 에디토리얼 스타일 */
:root {
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #898781;
  --surface: #fcfcfb;
  --page: #f9f9f7;
  --accent: #2a78d6;
  --accent-deep: #1c5cab;
  --hairline: #e1e0d9;
  --tint: #eef4fc;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Pretendard", -apple-system, BlinkMacSystemFont, "Segoe UI", "Malgun Gothic", "Apple SD Gothic Neo", sans-serif;
  color: var(--ink);
  background: var(--page);
  line-height: 1.7;
  font-size: 16px;
  word-break: keep-all;
}
.wrap { max-width: 780px; margin: 0 auto; padding: 0 20px; }
a { color: var(--accent-deep); text-decoration: none; }
a:hover { text-decoration: underline; }
code { background: #f0efec; padding: 2px 6px; border-radius: 4px; font-size: 0.88em; font-family: Consolas, "Courier New", monospace; }
pre { background: #16211f0d; border: 1px solid var(--hairline); border-radius: 8px; padding: 14px 16px; overflow-x: auto; line-height: 1.55; }
pre code { background: none; padding: 0; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }

/* header / footer */
.site-header { background: var(--surface); border-bottom: 1px solid var(--hairline); }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding-top: 14px; padding-bottom: 14px; }
.brand { font-weight: 800; font-size: 1.1rem; color: var(--ink); letter-spacing: -0.01em; }
.brand:hover { text-decoration: none; }
.site-nav a { margin-left: 18px; color: var(--ink-2); font-size: 0.95rem; }
.site-footer { border-top: 1px solid var(--hairline); margin-top: 64px; padding: 28px 0 40px; background: var(--surface); color: var(--ink-2); font-size: 0.9rem; }
.site-footer p { margin: 4px 0; }
.foot-links a { color: var(--ink-2); }

/* hero */
.hero { padding: 56px 0 8px; }
.hero-badge { display: inline-block; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent-deep); background: var(--tint); border-radius: 999px; padding: 4px 12px; margin: 0 0 14px; }
.hero h1 { font-size: 2rem; margin: 0 0 10px; letter-spacing: -0.02em; line-height: 1.3; }
.hero-desc { font-size: 1.06rem; color: var(--ink-2); max-width: 620px; margin: 0 0 18px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag { font-size: 0.82rem; background: var(--surface); border: 1px solid var(--hairline); border-radius: 999px; padding: 4px 12px; color: var(--ink-2); }
.btn { display: inline-block; background: var(--accent); color: #fff; border-radius: 8px; padding: 9px 18px; font-weight: 600; }
.btn:hover { background: var(--accent-deep); text-decoration: none; }

.tag-link { color: var(--ink); font-weight: 600; }
.tag-link:hover { border-color: var(--accent); color: var(--accent-deep); text-decoration: none; }
.hero-compact { padding: 30px 0 4px; }
.hero-compact h1 { font-size: 1.6rem; }

/* content cards */
.section-title { font-size: 1.15rem; margin: 40px 0 16px; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.section-head .section-title { margin-bottom: 6px; }
.section-more { font-size: 0.88rem; white-space: nowrap; }
.section-desc { margin: 0 0 14px; color: var(--muted); font-size: 0.9rem; }

/* related */
.related { margin-top: 36px; border-top: 1px solid var(--hairline); padding-top: 18px; }
.related h2 { font-size: 1.05rem; margin: 0 0 10px; }
.related ul { padding-left: 20px; margin: 0; }
.related li { margin: 6px 0; }
.card-list { display: grid; gap: 14px; }
.card { background: var(--surface); border: 1px solid var(--hairline); border-radius: 12px; padding: 20px 22px; }
.card-meta { display: flex; align-items: center; gap: 10px; font-size: 0.82rem; color: var(--muted); margin-bottom: 6px; }
.card-title { margin: 0 0 6px; font-size: 1.12rem; line-height: 1.45; }
.card-title a { color: var(--ink); }
.card-summary { margin: 0 0 10px; color: var(--ink-2); font-size: 0.94rem; }
.badge { display: inline-block; font-size: 0.75rem; font-weight: 700; border-radius: 6px; padding: 2px 8px; }
.badge-article { background: var(--tint); color: var(--accent-deep); }
.badge-glossary { background: #e9f7f1; color: #0b6b4a; }
.badge-faq { background: #fdf3e3; color: #8a5a00; }
.chips { margin: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.chip { font-size: 0.78rem; color: var(--ink-2); background: #f0efec; border-radius: 999px; padding: 2px 10px; }

/* article */
.breadcrumb { font-size: 0.85rem; color: var(--muted); margin: 22px 0 6px; }
.breadcrumb span { margin: 0 2px; }
.post { background: var(--surface); border: 1px solid var(--hairline); border-radius: 14px; padding: 36px 40px 28px; margin-bottom: 30px; }
.post-header h1 { font-size: 1.7rem; line-height: 1.4; letter-spacing: -0.02em; margin: 0 0 10px; }
.post-meta { color: var(--muted); font-size: 0.88rem; margin: 0 0 12px; }
.post-header .chips { margin-bottom: 4px; }

.key-answer { background: var(--tint); border-left: 4px solid var(--accent); border-radius: 0 10px 10px 0; padding: 16px 20px; margin: 22px 0; }
.key-answer-label { font-size: 0.8rem; font-weight: 800; letter-spacing: 0.06em; color: var(--accent-deep); margin: 0 0 6px; text-transform: uppercase; }
.key-answer p { margin: 0; font-size: 1.02rem; }

.section-sub { font-size: 1rem; margin: 0 0 12px; }
.key-stats { margin: 24px 0; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
.stat-card { border: 1px solid var(--hairline); border-radius: 10px; padding: 14px 16px; background: #fff; }
.stat-value { font-size: 1.35rem; font-weight: 800; letter-spacing: -0.01em; }
.stat-label { color: var(--ink-2); font-size: 0.88rem; margin-top: 2px; }
.stat-source { color: var(--muted); font-size: 0.78rem; margin-top: 6px; }

.toc { border: 1px solid var(--hairline); border-radius: 10px; padding: 14px 18px; margin: 24px 0; font-size: 0.92rem; background: #fff; }
.toc ol { margin: 8px 0 0; padding-left: 20px; }
.toc li { margin: 3px 0; }

.post-body { font-size: 1rem; }
.post-body h2 { font-size: 1.3rem; margin: 40px 0 14px; padding-bottom: 8px; border-bottom: 1px solid var(--hairline); letter-spacing: -0.01em; }
.post-body h3 { font-size: 1.08rem; margin: 28px 0 10px; }
.post-body p { margin: 14px 0; }
.post-body ul, .post-body ol { padding-left: 24px; }
.post-body li { margin: 6px 0; }
.post-body table { border-collapse: collapse; width: 100%; margin: 18px 0; font-size: 0.92rem; display: block; overflow-x: auto; }
.post-body th, .post-body td { border: 1px solid var(--hairline); padding: 8px 12px; text-align: left; vertical-align: top; }
.post-body th { background: #f4f3f0; font-weight: 700; white-space: nowrap; }
.post-body blockquote { border-left: 3px solid var(--hairline); margin: 16px 0; padding: 2px 18px; color: var(--ink-2); }

.faq { margin-top: 40px; }
.faq h2 { font-size: 1.3rem; padding-bottom: 8px; border-bottom: 1px solid var(--hairline); }
.faq-item { margin: 18px 0; }
.faq-q { font-size: 1.02rem; margin: 0 0 6px; }
.faq-a { margin: 0; color: var(--ink-2); }

.sources { margin-top: 36px; font-size: 0.92rem; }
.sources h2 { font-size: 1.05rem; }
.sources ul { padding-left: 20px; }

.md-note { margin-top: 36px; border-top: 1px dashed var(--hairline); padding-top: 16px; font-size: 0.88rem; color: var(--ink-2); }

.preview-banner { position: sticky; top: 0; z-index: 50; background: #fff7e0; border-bottom: 1px solid #eed9a0; color: #6b4e00; padding: 10px 20px; font-size: 0.9rem; text-align: center; }

@media (max-width: 640px) {
  .post { padding: 24px 20px; }
  .hero h1 { font-size: 1.6rem; }
  .header-inner { flex-direction: column; gap: 8px; align-items: flex-start; }
  .site-nav a { margin: 0 14px 0 0; }
}