:root {
  color-scheme: light;
  --ink: #22252a;
  --muted: #6b7179;
  --faint: #9ba0a7;
  --paper: #fff;
  --canvas: #f3f4f6;
  --soft: #f8f9fa;
  --navy: #18243a;
  --accent: #176b50;
  --accent-dark: #0e513b;
  --line: #e3e5e8;
  --line-strong: #cfd3d8;
  --max: 1080px;
  --reading: 720px;
  --radius: 3px;
  font-family: Pretendard, "Apple SD Gothic Neo", "Noto Sans KR", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body { margin: 0; background: var(--canvas); color: var(--ink); font-size: 1rem; line-height: 1.72; }
a { color: inherit; text-underline-offset: .2em; }
a:hover { color: var(--accent); }
img { display: block; max-width: 100%; outline: 1px solid rgba(0,0,0,.08); outline-offset: -1px; }
:focus-visible { outline: 3px solid #52a989; outline-offset: 3px; }
.wrap { width: min(calc(100% - 2.5rem), var(--max)); margin-inline: auto; }
.reading-wrap { width: min(calc(100% - 2.5rem), var(--reading)); margin-inline: auto; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 100; padding: .75rem 1rem; background: var(--ink); color: #fff; }
.skip-link:focus { top: 1rem; }

.utility-bar { border-bottom: 1px solid #eceef0; background: #fff; color: var(--faint); font-size: .76rem; }
.utility-bar .wrap { min-height: 2.25rem; display: flex; align-items: center; justify-content: space-between; }
.utility-bar nav { display: flex; gap: 1rem; }
.utility-bar a { text-decoration: none; }
.site-header { background: #fff; border-bottom: 1px solid var(--line); }
.masthead-row { min-height: 6.2rem; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: baseline; gap: .8rem; text-decoration: none; }
.brand > span { color: var(--navy); font-family: Georgia, "Times New Roman", serif; font-size: 2.25rem; font-weight: 800; letter-spacing: -.08em; }
.brand small { color: var(--muted); font-size: .72rem; font-weight: 700; letter-spacing: .13em; }
.brand:hover { color: inherit; }
.category-nav { border-top: 1px solid var(--line); }
.category-nav ul { display: flex; gap: 0 2.2rem; margin: 0; padding: 0; list-style: none; }
.category-nav a { display: flex; align-items: center; min-height: 3.15rem; color: #383d43; font-size: .9rem; font-weight: 700; text-decoration: none; transition: color 150ms ease-out; }
.category-nav a:hover { color: var(--accent); }
.nav-toggle { display: none; min-width: 44px; min-height: 44px; border: 1px solid var(--line-strong); border-radius: var(--radius); background: #fff; color: var(--ink); font: inherit; font-weight: 700; }
.nav-toggle:active { transform: scale(.96); }

.blog-banner { padding: 3.8rem 0 4.2rem; background: var(--navy); color: #fff; }
.blog-banner p { margin: 0 0 .7rem; color: #9dc9b9; font-size: .83rem; font-weight: 800; letter-spacing: .08em; }
.blog-banner h1 { max-width: 18ch; margin: 0; font-family: Georgia, "Noto Serif KR", serif; font-size: clamp(2.15rem, 5vw, 3.6rem); line-height: 1.27; letter-spacing: -.055em; text-wrap: balance; }
.blog-banner span { display: block; margin-top: 1.3rem; color: #b8c0cc; font-size: .82rem; }

.blog-layout { display: grid; grid-template-columns: minmax(0, 1fr) 17rem; gap: 2.5rem; align-items: start; padding-block: 2.7rem 5rem; }
.blog-main, .article-post { min-width: 0; padding: 2.2rem 2.35rem; border: 1px solid var(--line); background: #fff; }
.return-note { margin: -.1rem 0 2.4rem; padding: 0 0 2.2rem; border-bottom: 1px solid var(--line); }
.return-note > span { color: var(--accent); font-size: .75rem; font-weight: 850; letter-spacing: .04em; }
.return-note h2 { margin: .35rem 0 1rem; font-size: 1.55rem; letter-spacing: -.045em; }
.return-note p { margin: .75rem 0 0; color: #4d535a; font-size: .94rem; line-height: 1.85; text-wrap: pretty; }
.list-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; padding-bottom: 1rem; border-bottom: 2px solid #30343a; }
.list-heading h2 { margin: 0; font-size: 1.18rem; letter-spacing: -.035em; }
.list-heading span, .list-heading a { color: var(--faint); font-size: .78rem; }
.post-feed { display: block; }
.post-entry { display: grid; grid-template-columns: 15rem minmax(0, 1fr); gap: 1.5rem; padding: 1.75rem 0; border-bottom: 1px solid var(--line); }
.post-entry:last-child { border-bottom: 0; }
.post-thumbnail { display: block; aspect-ratio: 3 / 2; overflow: hidden; background: #e8eaed; color: #a4a9af; text-decoration: none; }
.post-thumbnail img { width: 100%; height: 100%; object-fit: cover; transition: transform 220ms ease-out; }
.post-thumbnail:hover img { transform: scale(1.025); }
.post-thumbnail > span { width: 100%; height: 100%; display: grid; place-items: center; font-family: Georgia, serif; font-size: 1.25rem; font-weight: 800; }
.post-copy { min-width: 0; }
.post-meta { display: flex; flex-wrap: wrap; gap: .4rem .9rem; margin-bottom: .62rem; color: var(--faint); font-size: .75rem; font-variant-numeric: tabular-nums; }
.post-meta a { color: var(--accent); font-weight: 800; text-decoration: none; }
.post-entry h2 { margin: 0; font-size: 1.22rem; line-height: 1.45; letter-spacing: -.035em; text-wrap: pretty; }
.post-entry h2 a { text-decoration: none; }
.post-entry p { display: -webkit-box; overflow: hidden; margin: .62rem 0 .85rem; color: var(--muted); font-size: .9rem; line-height: 1.62; text-wrap: pretty; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.post-byline { display: flex; gap: .8rem; color: var(--faint); font-size: .73rem; }

.blog-sidebar { display: grid; gap: 1.1rem; }
.profile-card, .sidebar-section { border: 1px solid var(--line); background: #fff; }
.profile-card { display: grid; grid-template-columns: 3.35rem 1fr; gap: .85rem; padding: 1.25rem; }
.profile-avatar { width: 3.35rem; aspect-ratio: 1; display: grid; place-items: center; border-radius: 50%; background: var(--navy); color: #fff; font-family: Georgia, serif; font-size: 1.15rem; font-weight: 800; }
.profile-card strong, .profile-card span { display: block; }
.profile-card strong { margin-top: .12rem; font-size: .95rem; }
.profile-card span { color: var(--faint); font-size: .72rem; }
.profile-card p { grid-column: 1 / -1; margin: .2rem 0 0; color: var(--muted); font-size: .82rem; line-height: 1.65; text-wrap: pretty; }
.profile-card > a { grid-column: 1 / -1; display: flex; justify-content: center; align-items: center; min-height: 40px; border: 1px solid var(--line-strong); color: #4a4f56; font-size: .78rem; font-weight: 700; text-decoration: none; transition-property: border-color, color, background-color; transition-duration: 150ms; transition-timing-function: ease-out; }
.profile-card > a:hover { border-color: var(--accent); background: #f5faf8; color: var(--accent); }
.sidebar-section h2 { margin: 0; padding: 1rem 1.1rem; border-bottom: 1px solid var(--line); font-size: .88rem; }
.category-list, .popular-list { margin: 0; padding: .55rem 1.1rem .75rem; list-style: none; }
.category-list a { display: flex; justify-content: space-between; align-items: center; min-height: 2.3rem; color: #555b62; font-size: .8rem; text-decoration: none; }
.category-list b { color: var(--faint); font-size: .72rem; font-weight: 500; font-variant-numeric: tabular-nums; }
.popular-list li { display: grid; grid-template-columns: 1.4rem 1fr; gap: .45rem; padding: .7rem 0; border-bottom: 1px solid #eff0f2; }
.popular-list li:last-child { border-bottom: 0; }
.popular-list span { color: var(--accent); font-family: Georgia, serif; font-size: .84rem; font-weight: 800; }
.popular-list a { color: #565b62; font-size: .77rem; line-height: 1.5; text-decoration: none; text-wrap: pretty; }
.adult-note { margin: 0; padding: .2rem .2rem 0; color: var(--faint); font-size: .71rem; line-height: 1.55; }

.archive-main { padding-top: 1.7rem; }
.archive-main > .breadcrumb { margin-bottom: 1rem; }
.archive-header { padding-bottom: 1.45rem; border-bottom: 2px solid #30343a; }
.archive-header h1 { margin: 0; font-size: 1.55rem; letter-spacing: -.04em; }
.archive-header p { max-width: 42rem; margin: .55rem 0 0; color: var(--muted); font-size: .88rem; text-wrap: pretty; }
.archive-main .region-list, .archive-main .empty-honest, .archive-main .link-list { margin-top: 1.5rem; }

.article-layout { padding-top: 2.7rem; }
.article-post { padding: 0; }
.article-header { padding: 2.55rem 2.7rem 2rem; border-bottom: 1px solid var(--line); background: #fff; }
.article-cover { margin: 0; padding: 2.2rem 2.7rem 0; }
.article-cover img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; }
.article-header h1 { max-width: 24ch; margin: 0; font-size: clamp(1.85rem, 4vw, 2.7rem); line-height: 1.3; letter-spacing: -.05em; text-wrap: balance; }
.page-dek { max-width: 43rem; margin: 1rem 0 0; color: var(--muted); font-size: 1rem; text-wrap: pretty; }
.eyebrow { margin: 0 0 .8rem; color: var(--accent); font-size: .76rem; font-weight: 850; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: .45rem; margin: 0 0 1.4rem; padding: 0; color: var(--faint); list-style: none; font-size: .74rem; }
.breadcrumb li:not(:last-child)::after { content: ">"; margin-left: .45rem; }
.article-meta { display: flex; flex-wrap: wrap; gap: .45rem 1rem; margin-top: 1.35rem; color: var(--faint); font-size: .75rem; font-variant-numeric: tabular-nums; }
.prose { padding: 2.5rem 2.7rem 4rem; font-size: 1.03rem; }
.prose h2 { margin: 3.6rem 0 1rem; font-size: clamp(1.45rem, 3vw, 1.9rem); line-height: 1.4; letter-spacing: -.035em; text-wrap: balance; }
.prose h3 { margin-top: 2.4rem; }
.prose p, .prose li { color: #373b40; }
.prose li + li { margin-top: .5rem; }
.article-lead { margin-top: 0; font-size: 1.05rem; line-height: 1.95; }
.direct-answer { margin: 2rem 0 3rem; padding: 1.35rem 1.45rem; border-left: 3px solid var(--accent); background: #f4f8f6; color: #252a2d !important; font-size: 1.02rem; font-weight: 650; }
.numbered-checks { margin: 0; padding: 0; list-style: none; counter-reset: checks; }
.numbered-checks li { position: relative; padding: 1.1rem 0 1.1rem 2.8rem; border-bottom: 1px solid var(--line); counter-increment: checks; }
.numbered-checks li::before { content: counter(checks, decimal-leading-zero); position: absolute; left: 0; color: var(--accent); font-size: .8rem; font-weight: 850; font-variant-numeric: tabular-nums; }
.numbered-checks span { display: block; margin-top: .2rem; color: var(--muted); }
.note { margin: 2.5rem 0; padding: 1.25rem 1.4rem; border: 1px solid #dce8e3; background: #f7faf9; }
.note p { margin: .25rem 0 0; }
.check-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: .6rem; }
.check-grid span { padding: .8rem .9rem; border: 1px solid var(--line); }
.check-grid span::before { content: "✓"; margin-right: .55rem; color: var(--accent); font-weight: 850; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: .85rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { border-top: 2px solid var(--ink); color: var(--ink); font-size: .88rem; }
.formula { padding: 1rem 1.2rem; border-left: 3px solid var(--accent); background: var(--soft); color: var(--ink) !important; font-weight: 750; }
.article-actions { display: flex; gap: .55rem; margin-top: 3.5rem; padding-top: 1.2rem; border-top: 1px solid var(--line); }
.article-action { min-width: 6.65rem; min-height: 40px; display: inline-flex; align-items: center; justify-content: center; gap: .45rem; padding: 0 .85rem; border: 1px solid var(--line-strong); background: #fff; color: #555b62; font: inherit; font-size: .8rem; font-weight: 700; line-height: 1; text-decoration: none; cursor: pointer; transition: border-color 150ms ease-out, background-color 150ms ease-out, color 150ms ease-out; }
.article-action span { color: var(--faint); font-size: .74rem; font-variant-numeric: tabular-nums; }
.article-action:hover, .article-action:focus-visible { border-color: var(--accent); background: #f4f8f6; color: var(--accent); outline: 0; }
.article-actions button[aria-pressed="true"] { border-color: var(--accent); background: #f4f8f6; color: var(--accent); }
.article-actions button[aria-pressed="true"] span { color: var(--accent); }
.comments { margin-top: 2rem; padding-top: 1.7rem; border-top: 1px solid var(--line); }
.comments h2 { margin: 0 0 .5rem; font-size: 1.15rem; }
.comments p { margin: 0; color: var(--faint); font-size: .82rem; }
.related-reading { margin-top: 3.5rem; padding: 1.45rem 1.55rem; border-top: 2px solid var(--ink); background: #fafafa; }
.related-reading h2 { margin: 0 0 1rem; font-size: 1.15rem; }
.related-reading ul { display: grid; gap: .65rem; margin: 0; padding: 0; list-style: none; }
.related-reading a { display: block; color: var(--ink); font-size: .9rem; text-decoration: none; }
.related-reading a:hover { color: var(--accent); }
.related-reading span { display: inline-block; min-width: 5.4rem; margin-right: .55rem; color: var(--accent); font-size: .73rem; font-weight: 800; }
.post-navigator { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .9rem; margin-top: 1.3rem; }
.post-nav-card { position: relative; min-width: 0; display: grid; grid-template-columns: 5.25rem minmax(0, 1fr); grid-template-rows: auto 1fr auto; column-gap: .8rem; padding: .75rem; border: 1px solid var(--line); background: #fff; color: var(--ink); text-decoration: none; transition: border-color 150ms ease-out, background-color 150ms ease-out; }
.post-nav-card:hover { border-color: var(--accent); background: #f8fbfa; color: var(--ink); }
.post-nav-card img { grid-row: 1 / 4; width: 5.25rem; height: 5.25rem; object-fit: cover; }
.post-nav-label { margin-bottom: .25rem; color: var(--accent); font-size: .7rem; font-weight: 850; }
.post-nav-card strong { display: -webkit-box; overflow: hidden; align-self: center; font-size: .82rem; line-height: 1.45; letter-spacing: -.02em; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.post-nav-card small { color: var(--faint); font-size: .68rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.post-nav-card.is-empty { visibility: hidden; }

.page-header { padding: 3rem 0; border-bottom: 1px solid var(--line); background: #fff; }
.page-header h1 { max-width: 22ch; margin: 0; font-size: clamp(2rem, 5vw, 3.2rem); line-height: 1.2; letter-spacing: -.055em; text-wrap: balance; }
.section { padding: 2.7rem 0 5rem; }
.content-layout { display: grid; grid-template-columns: minmax(0, var(--reading)) 16rem; gap: 3rem; align-items: start; }
.hub-intro { max-width: 45rem; margin: 0 0 2rem; color: var(--muted); font-size: 1rem; }
.link-list { border-top: 2px solid var(--ink); background: #fff; }
.link-row { display: grid; grid-template-columns: 9rem 1fr auto; gap: 1.2rem; align-items: center; min-height: 5.5rem; padding: 1.1rem; border-bottom: 1px solid var(--line); text-decoration: none; }
.link-row:hover { color: var(--accent); }
.link-row .label { color: var(--accent); font-size: .78rem; font-weight: 800; }
.link-row h2 { margin: 0; font-size: 1.08rem; letter-spacing: -.025em; text-wrap: pretty; }
.empty-honest { padding: 1.5rem; border: 1px solid var(--line); background: #fff; }
.region-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .75rem; margin-bottom: 2rem; }
.region-list div { padding: 1rem 1.1rem; border: 1px solid var(--line); background: #fff; }
.region-list strong, .region-list span { display: block; }
.region-list span { margin-top: .2rem; color: var(--muted); font-size: .84rem; }

.site-footer { padding: 3.5rem 0; border-top: 1px solid #30394a; background: var(--navy); color: #c5cbd4; }
.footer-grid { display: grid; grid-template-columns: 1fr 2fr; gap: 3rem; }
.footer-brand { color: #fff; font-family: Georgia, serif; font-size: 1.35rem; font-weight: 900; text-decoration: none; }
.footer-grid p { font-size: .82rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: .75rem 1.25rem; }
.footer-links a { color: #fff; font-size: .78rem; }
.copyright { margin-top: 1.5rem; color: #7f8a9d; font-size: .73rem !important; }

@media (max-width: 900px) {
  .masthead-row { min-height: 4.7rem; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .site-header { position: relative; }
  .category-nav { display: none; position: absolute; z-index: 30; left: 0; right: 0; top: 100%; background: #fff; box-shadow: 0 14px 28px rgba(20,27,37,.12); }
  .category-nav[data-open="true"] { display: block; }
  .category-nav ul { flex-direction: column; gap: 0; }
  .category-nav a { min-height: 46px; border-bottom: 1px solid var(--line); }
  .blog-layout { grid-template-columns: 1fr; }
  .blog-sidebar { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .profile-card { grid-row: span 2; }
  .adult-note { grid-column: 1 / -1; }
  .content-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .wrap, .reading-wrap { width: min(calc(100% - 1.5rem), var(--max)); }
  .utility-bar nav { display: none; }
  .brand > span { font-size: 1.8rem; }
  .brand small { display: none; }
  .blog-banner { padding: 2.8rem 0 3.1rem; }
  .blog-layout { padding-top: 1rem; gap: 1rem; }
  .blog-main, .article-post { padding: 1.2rem; }
  .list-heading span { display: none; }
  .return-note { margin-bottom: 1.5rem; padding-bottom: 1.5rem; }
  .return-note h2 { font-size: 1.3rem; }
  .return-note p { font-size: .9rem; }
  .post-entry { grid-template-columns: 7.2rem minmax(0, 1fr); gap: 1rem; padding: 1.15rem 0; }
  .post-entry h2 { display: -webkit-box; overflow: hidden; font-size: 1rem; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
  .post-entry p { margin: .45rem 0 0; font-size: .8rem; -webkit-line-clamp: 2; }
  .post-byline { display: none; }
  .blog-sidebar { grid-template-columns: 1fr; }
  .profile-card { grid-row: auto; }
  .article-layout { padding-top: 1rem; }
  .article-post { padding: 0; }
  .article-header { padding: 1.7rem 1.25rem 1.5rem; }
  .article-cover { padding: 1.25rem 1.25rem 0; }
  .prose { padding: 2rem 1.25rem 3rem; }
  .check-grid, .region-list { grid-template-columns: 1fr; }
  .post-navigator { grid-template-columns: 1fr; }
  .link-row { grid-template-columns: 1fr auto; }
  .link-row .label { grid-column: 1 / -1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}