:root {
  --ink: #20231f;
  --muted: #62685f;
  --line: #dce1d5;
  --paper: #fbfaf5;
  --surface: #ffffff;
  --soft: #eef3e6;
  --accent: #416a59;
  --accent-strong: #23483b;
  --warm: #c96f44;
  --focus: #146c5f;
}

* {
  box-sizing: border-box;
}

html {
  color: var(--ink);
  background: var(--paper);
  font-family: "Pretendard", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  line-height: 1.7;
}

body {
  margin: 0;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -48px;
  z-index: 30;
  border-radius: 6px;
  background: var(--accent-strong);
  color: #fff;
  padding: 10px 12px;
  text-decoration: none;
  transition: top 0.15s ease;
}

.skip-link:focus {
  top: 12px;
}

a {
  color: var(--accent-strong);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

img {
  max-width: 100%;
  height: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px clamp(18px, 4vw, 52px);
  border-bottom: 1px solid rgba(32, 35, 31, 0.12);
  background: rgba(251, 250, 245, 0.94);
  backdrop-filter: blur(10px);
}

.brand {
  display: inline-flex;
  flex-direction: column;
  gap: 1px;
  color: var(--ink);
  text-decoration: none;
}

.brand strong {
  font-size: 1rem;
  line-height: 1.2;
}

.brand span {
  color: var(--muted);
  font-size: 0.76rem;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.92rem;
}

.nav-links a {
  color: var(--ink);
  text-decoration: none;
}

.hero {
  min-height: min(72vh, 720px);
  display: grid;
  align-items: end;
  position: relative;
  overflow: hidden;
  background-position: center;
  background-size: cover;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(18, 23, 20, 0.52);
}

.hero-inner {
  position: relative;
  width: min(1160px, calc(100% - 36px));
  margin: 0 auto;
  padding: 88px 0 54px;
  color: #fff;
}

.eyebrow {
  margin: 0 0 14px;
  color: #f2d6bd;
  font-size: 0.86rem;
  font-weight: 700;
}

.hero h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(2.25rem, 6vw, 5.6rem);
  line-height: 1.02;
  letter-spacing: 0;
}

.hero p {
  max-width: 720px;
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(1rem, 2vw, 1.2rem);
}

.search-band {
  border-block: 1px solid var(--line);
  background: var(--surface);
}

.search-inner {
  width: min(1160px, calc(100% - 36px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px auto;
  gap: 12px;
  align-items: center;
  padding: 18px 0;
}

.search-inner input,
.search-inner select {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  padding: 9px 12px;
}

.search-inner input:focus,
.search-inner select:focus {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.result-count {
  color: var(--muted);
  font-size: 0.94rem;
  white-space: nowrap;
}

.home-main,
.article-shell {
  width: min(1160px, calc(100% - 36px));
  margin: 0 auto;
}

.section-title {
  margin: 42px 0 16px;
  font-size: clamp(1.42rem, 3vw, 2.1rem);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  align-items: center;
  margin: 26px 0 14px;
  color: var(--muted);
  font-size: 0.86rem;
}

.breadcrumbs a {
  color: var(--accent-strong);
  text-decoration: none;
}

.article-header .breadcrumbs {
  margin-top: 0;
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 0 0 34px;
}

.topic-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  padding: 16px;
  text-decoration: none;
}

.topic-card strong {
  display: block;
  font-size: 1.08rem;
}

.topic-card span {
  color: var(--muted);
  font-size: 0.88rem;
}

.asset-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  padding-bottom: 56px;
}

.asset-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.asset-card[hidden] {
  display: none;
}

.asset-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}

.asset-card-body {
  padding: 16px;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 0.8rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--soft);
  color: var(--accent-strong);
  font-weight: 700;
}

.asset-card h2 {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.42;
}

.asset-card p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.asset-card a {
  color: inherit;
  text-decoration: none;
}

.article-header {
  padding: 44px 0 24px;
}

.article-header h1 {
  max-width: 920px;
  margin: 0;
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1.08;
  letter-spacing: 0;
}

.article-description {
  max-width: 820px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.review-note {
  margin-top: 18px;
  padding: 12px 14px;
  border-left: 4px solid var(--warm);
  background: #fff5ed;
  color: #5f321d;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 270px;
  gap: 38px;
  align-items: start;
}

.article-body {
  min-width: 0;
  padding-bottom: 64px;
}

.article-body > figure:first-child {
  margin-top: 0;
}

.article-body h2 {
  margin: 38px 0 10px;
  font-size: 1.55rem;
  line-height: 1.32;
}

.article-body h3 {
  margin: 28px 0 8px;
  font-size: 1.18rem;
}

.article-body p {
  margin: 0 0 16px;
}

.article-body ul {
  padding-left: 1.2rem;
}

.article-body li {
  margin: 6px 0;
}

.article-body code {
  border-radius: 4px;
  background: #eef1eb;
  padding: 0.1em 0.35em;
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.92em;
}

.article-body pre {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #1e2420;
  color: #eef5ec;
  padding: 16px;
}

.content-image {
  display: block;
  width: 100%;
  border-radius: 8px;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

figure {
  margin: 0 0 28px;
}

figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.85rem;
}

.side-panel {
  position: sticky;
  top: 86px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: 16px;
}

.side-panel h2 {
  margin: 0 0 10px;
  font-size: 1rem;
}

.side-panel dl {
  display: grid;
  gap: 10px;
  margin: 0;
}

.side-panel dt {
  color: var(--muted);
  font-size: 0.78rem;
}

.side-panel dd {
  margin: 2px 0 0;
  font-size: 0.92rem;
}

.side-panel dd a {
  color: var(--accent-strong);
}

.toc-block {
  margin-top: 18px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.toc-block h2 {
  margin: 0 0 8px;
  font-size: 0.95rem;
}

.toc-block ol {
  display: grid;
  gap: 7px;
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.related-links {
  margin-top: 42px;
  border-top: 1px solid var(--line);
  padding-top: 22px;
}

.related-links h2 {
  margin-top: 0;
}

.related-links a {
  display: block;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  padding: 12px 14px;
  text-decoration: none;
}

.related-links a + a {
  margin-top: 10px;
}

.related-links span {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
}

.not-found {
  min-height: 55vh;
  padding: 80px 0;
}

.not-found h1 {
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1.1;
}

.site-map-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  padding: 0 0 60px;
}

.site-map-list section {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: 16px;
}

.site-map-list h2 {
  margin-top: 0;
}

.site-map-list ul {
  margin-bottom: 0;
  padding-left: 1.1rem;
}

.text-button {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  border-radius: 6px;
  background: var(--accent-strong);
  color: #fff;
  padding: 8px 14px;
  text-decoration: none;
}

.reference-list {
  padding-left: 1rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #f2f0e8;
  color: var(--muted);
}

.footer-inner {
  width: min(1160px, calc(100% - 36px));
  margin: 0 auto;
  padding: 26px 0;
  font-size: 0.9rem;
}

@media (max-width: 920px) {
  .search-inner,
  .article-layout {
    grid-template-columns: 1fr;
  }

  .asset-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .topic-grid,
  .site-map-list {
    grid-template-columns: 1fr;
  }

  .side-panel {
    position: static;
  }
}

@media (max-width: 640px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    min-height: 78vh;
  }

  .hero-inner {
    padding-top: 110px;
  }

  .asset-grid {
    grid-template-columns: 1fr;
  }
}