:root {
  --naver-green: #03c75a;
  --naver-green-dark: #02b350;
  --naver-green-soft: rgba(3, 199, 90, 0.12);
  --naver-bg: #f5f7f8;
  --naver-surface: #ffffff;
  --naver-surface-2: #f9fbfa;
  --naver-border: #dce5e2;
  --naver-border-strong: #c9d8d3;
  --naver-text: #101820;
  --naver-muted: #5f6b73;
  --naver-shadow: 0 16px 40px rgba(16, 24, 32, 0.08);
  --naver-radius-xl: 28px;
  --naver-radius-lg: 22px;
  --naver-radius-md: 16px;
  --naver-radius-sm: 12px;
  --naver-max-width: 1260px;
}

html {
  background: var(--naver-bg);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Apple SD Gothic Neo", "Noto Sans KR", "Pretendard", sans-serif;
  color: var(--naver-text);
  background:
    radial-gradient(circle at top left, rgba(3, 199, 90, 0.05), transparent 24%),
    linear-gradient(180deg, #f7faf9 0%, var(--naver-bg) 220px);
  line-height: 1.72;
}

body.dark {
  --naver-bg: #0f1418;
  --naver-surface: #151b20;
  --naver-surface-2: #11171b;
  --naver-border: #23313a;
  --naver-border-strong: #30424b;
  --naver-text: #eef4f1;
  --naver-muted: #a9b7c0;
  --naver-shadow: 0 18px 46px rgba(0, 0, 0, 0.34);
  background:
    radial-gradient(circle at top left, rgba(3, 199, 90, 0.12), transparent 22%),
    linear-gradient(180deg, #0b1013 0%, var(--naver-bg) 220px);
}

body.dark .header {
  background: rgba(21, 27, 32, 0.94);
}

a {
  color: var(--naver-green-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--naver-green);
}

.header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--naver-border);
  box-shadow: 0 2px 12px rgba(16, 24, 32, 0.04);
}

.nav {
  max-width: var(--naver-max-width);
  margin: 0 auto;
  padding: 16px 20px 14px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.nav__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.naver-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--naver-text);
  min-width: 0;
}

.naver-brand__mark {
  width: 38px;
  height: 38px;
  border-radius: 999px;
  background: linear-gradient(145deg, var(--naver-green), var(--naver-green-dark));
  color: #fff;
  display: inline-grid;
  place-items: center;
  font-weight: 800;
  letter-spacing: -0.04em;
  box-shadow: 0 10px 24px rgba(3, 199, 90, 0.28);
  flex: none;
}

.naver-brand__text {
  font-size: 1.16rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.naver-brand__sub {
  display: block;
  color: var(--naver-muted);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0;
  margin-top: 2px;
}

.naver-tools {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.naver-search {
  flex: 1;
  min-width: 260px;
  max-width: 690px;
  display: flex;
  align-items: center;
  gap: 0;
  border: 2px solid var(--naver-green);
  border-radius: 999px;
  background: var(--naver-surface);
  box-shadow: 0 12px 28px rgba(3, 199, 90, 0.08);
  overflow: hidden;
}

.naver-search input {
  flex: 1;
  height: 48px;
  padding: 0 18px;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--naver-text);
  font-size: 1rem;
}

.naver-search button {
  height: 48px;
  border: 0;
  padding: 0 20px;
  background: linear-gradient(145deg, var(--naver-green), var(--naver-green-dark));
  color: #fff;
  font-weight: 800;
  cursor: pointer;
}

.naver-search button:hover {
  filter: brightness(1.02);
}

.naver-search input::placeholder {
  color: var(--naver-muted);
}

.naver-tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 2px;
  scrollbar-width: none;
}

.naver-tabs::-webkit-scrollbar {
  display: none;
}

.naver-tab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--naver-text);
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  white-space: nowrap;
}

.naver-tab:hover,
.naver-tab.is-active {
  border-color: var(--naver-green-soft);
  background: var(--naver-green-soft);
  color: var(--naver-green-dark);
}

.main {
  max-width: var(--naver-max-width);
  margin: 0 auto;
  padding: 28px 20px 72px;
}

.portal-hero,
.home-info,
.first-entry {
  background: linear-gradient(180deg, rgba(3, 199, 90, 0.07), transparent 55%), var(--naver-surface);
  border: 1px solid var(--naver-border);
  border-radius: var(--naver-radius-xl);
  box-shadow: var(--naver-shadow);
  padding: 28px;
}

.portal-hero {
  margin-bottom: 22px;
}

.portal-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--naver-green-dark);
  font-weight: 800;
  letter-spacing: -0.02em;
  font-size: 0.92rem;
  margin-bottom: 10px;
}

.portal-hero__eyebrow::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--naver-green);
  box-shadow: 0 0 0 5px var(--naver-green-soft);
}

.portal-hero h1,
.page-header h1,
.post-title,
.home-info h1 {
  letter-spacing: -0.05em;
  line-height: 1.18;
}

.portal-hero h1 {
  margin: 0;
  font-size: clamp(1.9rem, 4vw, 3.2rem);
}

.portal-hero p {
  color: var(--naver-muted);
  margin: 14px 0 0;
  max-width: 70ch;
}

.portal-hero__search {
  margin-top: 22px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
}

.portal-hero__search input {
  min-height: 54px;
  border: 1px solid var(--naver-border-strong);
  border-radius: 18px;
  padding: 0 18px;
  background: var(--naver-surface-2);
  color: var(--naver-text);
  font-size: 1rem;
  outline: none;
}

.portal-hero__search input:focus {
  border-color: var(--naver-green);
  box-shadow: 0 0 0 4px var(--naver-green-soft);
  background: var(--naver-surface);
}

.portal-hero__search button,
.cta__button,
.button {
  min-height: 54px;
  border: 0;
  border-radius: 18px;
  padding: 0 20px;
  background: linear-gradient(145deg, var(--naver-green), var(--naver-green-dark));
  color: #fff !important;
  font-weight: 800;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 14px 28px rgba(3, 199, 90, 0.18);
}

.portal-hero__search button:hover,
.cta__button:hover,
.button:hover {
  transform: translateY(-1px);
}

.portal-hero__meta {
  margin-top: 14px;
  color: var(--naver-muted);
  font-size: 0.95rem;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.portal-chips,
.post-tags,
.related-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
}

.portal-chip,
.post-tags a,
.related-tags a,
.tag-entry .post-tags a {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--naver-border);
  background: var(--naver-surface-2);
  color: var(--naver-text);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 700;
}

.portal-chip:hover,
.post-tags a:hover,
.related-tags a:hover {
  border-color: var(--naver-green);
  color: var(--naver-green-dark);
  background: var(--naver-green-soft);
}

.portal-section {
  margin-top: 22px;
}

.portal-section__head,
.page-header,
.post-header,
.post-single .post-footer,
.related-posts__head {
  margin-bottom: 18px;
}

.portal-section__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.portal-section__head h2,
.page-header h1 {
  margin: 0;
  font-size: 1.45rem;
}

.portal-section__head small,
.page-header .post-description {
  color: var(--naver-muted);
}

.post-entry,
.first-entry,
.tag-entry {
  position: relative;
  background: var(--naver-surface);
  border: 1px solid var(--naver-border);
  border-radius: var(--naver-radius-lg);
  padding: 22px;
  box-shadow: 0 8px 24px rgba(16, 24, 32, 0.04);
  overflow: hidden;
}

.post-entry:hover,
.first-entry:hover,
.tag-entry:hover {
  transform: translateY(-2px);
  box-shadow: var(--naver-shadow);
  border-color: rgba(3, 199, 90, 0.35);
}

.post-entry .entry-header h2,
.first-entry .entry-header h2,
.post-title {
  font-size: 1.16rem;
  margin: 0;
}

.entry-content p,
.post-content p {
  color: var(--naver-text);
}

.entry-content {
  color: var(--naver-muted);
}

.entry-footer,
.post-meta,
.post-single .post-meta {
  color: var(--naver-muted);
  font-size: 0.92rem;
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.portal-card {
  height: 100%;
}

.portal-card .entry-content p {
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.portal-card .cover {
  margin-bottom: 14px;
}

.portal-card .cover img {
  border-radius: 18px;
}

.post-single {
  max-width: 980px;
  margin: 0 auto;
}

.post-single,
.page-header {
  background: var(--naver-surface);
  border: 1px solid var(--naver-border);
  border-radius: var(--naver-radius-xl);
  box-shadow: var(--naver-shadow);
  padding: 28px;
}

.post-content {
  max-width: 100%;
}

.post-content > * + * {
  margin-top: 1.05em;
}

.post-content h2,
.post-content h3,
.post-content h4 {
  scroll-margin-top: 110px;
  letter-spacing: -0.04em;
}

.post-content table {
  display: block;
  overflow-x: auto;
  border-collapse: collapse;
  width: 100%;
  border: 1px solid var(--naver-border);
  border-radius: 16px;
}

.post-content th,
.post-content td {
  border-bottom: 1px solid var(--naver-border);
  padding: 10px 12px;
}

.post-content blockquote {
  border-left: 4px solid var(--naver-green);
  background: var(--naver-green-soft);
  padding: 14px 16px;
  border-radius: 0 14px 14px 0;
  color: var(--naver-text);
}

.post-content pre {
  border-radius: 18px;
  border: 1px solid var(--naver-border);
}

.related-posts {
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid var(--naver-border);
}

.related-posts__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.related-posts__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.related-post {
  border: 1px solid var(--naver-border);
  border-radius: 18px;
  background: var(--naver-surface-2);
  padding: 18px;
  text-decoration: none;
  color: inherit;
  box-shadow: 0 8px 20px rgba(16, 24, 32, 0.04);
}

.related-post:hover {
  border-color: var(--naver-green);
  background: var(--naver-surface);
}

.related-post time {
  display: block;
  margin-bottom: 8px;
  color: var(--naver-muted);
  font-size: 0.88rem;
}

.related-post h3 {
  margin: 0;
  font-size: 1rem;
}

.cta {
  margin: 18px 0;
  display: grid;
  gap: 8px;
}

.cta__note {
  color: var(--naver-muted);
  font-size: 0.92rem;
  margin: 0;
}

.cta--secondary .cta__button,
.button.secondary {
  background: transparent;
  border: 1px solid var(--naver-green);
  color: var(--naver-green-dark) !important;
  box-shadow: none;
}

.button {
  cursor: pointer;
}

.button-inner {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.naver-link--external::after,
.cta__button[data-external="true"]::after {
  content: "↗";
  font-size: 0.95em;
  margin-left: 0.2em;
}

.footer {
  max-width: var(--naver-max-width);
  margin: 0 auto;
  padding: 22px 20px 34px;
  color: var(--naver-muted);
  border-top: 1px solid var(--naver-border);
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.top-link {
  right: 20px;
  bottom: 20px;
  border-radius: 999px;
  background: var(--naver-green);
  color: #fff;
  box-shadow: 0 16px 32px rgba(3, 199, 90, 0.22);
}

.top-link svg {
  width: 18px;
  height: 18px;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.lang-switch a {
  color: var(--naver-muted);
  text-decoration: none;
  font-weight: 700;
}

.lang-switch a:hover {
  color: var(--naver-green-dark);
}

.search-results {
  background: var(--naver-surface);
  border: 1px solid var(--naver-border);
  border-radius: 18px;
  box-shadow: var(--naver-shadow);
}

@media (max-width: 940px) {
  .nav__row {
    flex-direction: column;
    align-items: stretch;
  }

  .naver-tools {
    justify-content: space-between;
  }

  .post-grid,
  .related-posts__grid {
    grid-template-columns: 1fr;
  }

  .portal-hero__search {
    grid-template-columns: 1fr;
  }

  .portal-section__head,
  .related-posts__head {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer__inner {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .nav {
    padding-inline: 14px;
  }

  .main {
    padding-inline: 14px;
  }

  .portal-hero,
  .home-info,
  .first-entry,
  .post-single,
  .page-header {
    padding: 20px;
    border-radius: 22px;
  }

  .naver-search input {
    height: 44px;
  }

  .naver-search button {
    height: 44px;
    padding-inline: 16px;
  }
}