:root {
  --bg: #ffffff;
  --page-bg: #ffffff;
  --surface-muted: #f5f6f7;
  --text: #242424;
  --text-muted: #686868;
  --line: #e8e8e8;
  --accent: #14733e;
  --accent-soft: #eef8f1;
  --max-width: 1080px;
}

html[data-theme="dark"] {
  --bg: #17191b;
  --page-bg: #17191b;
  --surface: #17191b;
  --surface-muted: #232629;
  --text: #eeeeee;
  --text-muted: #a2a7ad;
  --line: #33373b;
  --accent: #79d6a0;
  --accent-soft: #22372b;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", sans-serif;
  letter-spacing: -0.015em;
}

.site-header {
  background: var(--bg);
  border-color: var(--line);
}

.site-title {
  font-family: inherit;
  text-transform: none;
  letter-spacing: -0.035em;
  font-size: 1.05rem;
  font-weight: 700;
}

.nav-list > .nav-item > a {
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--text-muted);
}

.nav-list > .nav-item > a.active {
  color: var(--accent);
  font-weight: 700;
}

.nav-dropdown {
  left: auto;
  right: 0;
}

.home-content {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  align-content: start;
  align-items: start;
  gap: 0 48px;
  padding-bottom: 1.5rem;
}

.home-content ~ .site-footer,
.post-content ~ .site-footer {
  margin-top: 0;
}

.blog-masthead {
  grid-column: 1 / -1;
  grid-row: 1;
  padding: 0.75rem 0 1.8rem;
  min-width: 0;
}

.blog-masthead-label {
  margin: 0 0 0.55rem;
  color: var(--accent);
  font-size: 0.8rem;
}

.blog-masthead h1,
.blog-header h1 {
  margin: 0;
  font-size: clamp(1.6rem, 3.2vw, 2.3rem);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1.35;
}

.blog-masthead-description,
.blog-header > p {
  color: var(--text-muted);
  margin: 0.7rem 0 0;
  font-size: 0.9rem;
}

.home-latest-section {
  grid-column: 1;
  grid-row: 2;
  min-width: 0;
}

.home-latest-heading {
  min-height: 56px;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--text);
  align-items: center;
}

.home-latest-section .section-title {
  font-family: inherit;
  text-transform: none;
  letter-spacing: 0;
  color: var(--text);
  font-size: 0.95rem;
  margin: 0;
}

.feed-count {
  color: var(--accent);
  font-weight: 500;
  margin-left: 0.25rem;
}

.home-search {
  margin: 0;
  width: min(260px, 55%);
}

.blog-search-form {
  flex-wrap: nowrap;
  max-width: 420px;
}

.blog-search-input {
  flex: 1 1 0;
  width: 100%;
  min-width: 0;
  border-radius: 4px;
  background: var(--surface-muted);
}

.blog-search-button {
  flex-shrink: 0;
  border-radius: 4px;
}

.feed-more {
  display: block;
  text-align: center;
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  margin-top: 1.5rem;
  font-size: 0.9rem;
  color: var(--text);
}

.home-content > .home-intro {
  grid-column: 2;
  grid-row: 2;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
  min-width: 0;
  border-left: 1px solid var(--line);
  padding-left: 24px;
}

.home-profile {
  order: 0;
}

.home-profile-heading {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.profile-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
}

.home-profile-heading h2 {
  font-size: 1rem;
  margin: 0;
}

.home-profile-heading p {
  font-size: 0.75rem;
  margin: 0.25rem 0 0;
  color: var(--text-muted);
}

.home-profile-bio {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 1rem 0 0.5rem;
}

.profile-description {
  font-size: 0.85rem;
  min-height: 44px;
  display: flex;
  align-items: center;
  color: var(--text-muted);
}

.about-page {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem 0;
}

.about-label,
.about-location {
  color: var(--text-muted);
}

.about-label {
  margin: 0 0 0.75rem;
}

.about-heading h1 {
  margin: 0;
}

.about-location {
  margin: 0.5rem 0;
}

.about-bio {
  margin: 1rem 0 2rem;
}

.about-details {
  display: flex;
  align-items: flex-start;
  gap: 2.5rem;
}

.about-photo {
  width: 240px;
  height: auto;
  border-radius: 8px;
  flex-shrink: 0;
}

.about-photo--circular {
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 50%;
}

.about-body {
  min-width: 0;
}

@media (max-width: 700px) {
  .about-page {
    padding: 1rem 0;
  }

  .about-details {
    flex-direction: column;
    gap: 1.5rem;
  }

  .about-photo {
    width: 180px;
    max-width: 100%;
  }
}

.home-content .home-intro > .favorite-rail,
.home-content .home-intro > .home-right-rail {
  position: static;
  width: 100%;
  max-height: none;
  margin: 0;
  box-shadow: none;
  padding: 0;
  border: 0;
  background: transparent;
}

.home-content .home-intro > .favorite-rail {
  order: 1;
}

.home-content .home-intro > .home-right-rail {
  order: 2;
  display: block;
}

.home-content .favorite-summary {
  pointer-events: auto;
  cursor: pointer;
  min-height: 44px;
}

.home-content .favorite-summary::after {
  display: block;
}

.home-content .favorite-disclosure:not([open]) > .favorite-list {
  display: none;
}

.home-content .useful-info-card {
  display: block;
  width: 100%;
  margin: 0;
  padding: 1rem 0;
  border: 0;
  border-top: 1px solid var(--line);
  border-radius: 0;
  white-space: normal;
}

.home-content .useful-info-block,
.home-content .useful-info-rate-list {
  display: block;
}

.home-content .useful-info-block {
  margin-top: 0.65rem;
}

.favorite-title,
.useful-info-title,
.post-related h2 {
  font-family: inherit;
  text-transform: none;
  letter-spacing: 0;
  font-size: 0.9rem;
}

.blog-category-bar {
  margin-top: 1.5rem;
  position: relative;
  display: flex;
  align-items: center;
  gap: 1rem;
  border-bottom: 1px solid var(--line);
}

.blog-category-tabs {
  display: flex;
  gap: 1.35rem;
  overflow-x: auto;
  min-width: 0;
  flex: 1;
  scrollbar-width: thin;
}

.blog-category-tabs > :is(a, .category-disabled) {
  display: flex;
  gap: 0.35rem;
  align-items: center;
  min-height: 48px;
  flex-shrink: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.blog-category-tabs > .category-disabled {
  padding: 0;
}

.blog-category-tabs > a.active {
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}

.category-count {
  font-size: 0.8em;
  color: var(--text-muted);
}

.category-disclosure {
  flex-shrink: 0;
}

.category-disclosure > summary {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 48px;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.category-disclosure > summary::-webkit-details-marker {
  display: none;
}

.category-disclosure .blog-category-filter {
  position: absolute;
  right: 0;
  top: 100%;
  width: min(430px, 100%);
  max-height: 60vh;
  overflow-y: auto;
  margin: 0.4rem 0 0;
  padding: 1rem;
  z-index: 5;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 8px 24px #00000012;
}

.category-disclosure .blog-category-parent-list {
  display: grid;
  gap: 0.65rem;
}

.category-disclosure .blog-category-filter a {
  border: 0;
  border-radius: 4px;
  min-height: 44px;
  padding: 0.25rem 0.5rem;
}

.post-list {
  gap: 0;
}

.post-item {
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  padding: 1.6rem 0;
  background: transparent;
}

.post-item h2,
.post-item h3 {
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: -0.03em;
}

.post-item h2 a,
.post-item h3 a {
  color: var(--text);
}

.post-item h2 a:hover,
.post-item h3 a:hover {
  color: var(--accent);
}

.post-excerpt {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.8;
  margin: 0.5rem 0 0.7rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-item .post-meta {
  margin: 0;
  font-size: 0.78rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.post-card-categories {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.35rem;
  font-size: 0.78rem;
}

.post-card-categories a {
  color: var(--text-muted);
}

.post-item--with-media {
  grid-template-columns: minmax(0, 1fr) 116px;
  gap: 1.4rem;
}

.post-item .post-card-media {
  grid-column: 2;
  grid-row: 1;
  width: 116px;
  height: 116px;
  border: 0;
  border-radius: 6px;
}

.post-item .post-card-content {
  grid-column: 1;
  grid-row: 1;
}

.post-item .post-card-preview {
  width: 100%;
  grid-auto-columns: 100%;
}

.post-content {
  padding-bottom: 1.5rem;
}

.post-detail-layout {
  grid-template-columns: minmax(0, 760px) minmax(0, 240px);
  gap: 3rem;
}

.post-header {
  max-width: 760px;
  padding: 1rem 0 1.5rem;
  border-bottom: 1px solid var(--line);
}

.post-header h1 {
  font-size: clamp(1.65rem, 3.5vw, 2.15rem);
  line-height: 1.5;
  letter-spacing: -0.045em;
}

.post-header-navigation {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.post-breadcrumbs {
  flex: 1;
  min-width: 0;
  overflow-wrap: anywhere;
  font-size: 0.85rem;
}

.post-byline {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.85rem;
}

.post-author-avatar {
  width: 28px;
  height: 28px;
  object-fit: cover;
  border-radius: 50%;
}

.post-body {
  border: 0;
  border-radius: 0;
  padding: 1rem 0;
  font-size: 1.06rem;
  line-height: 1.95;
}

.post-body p {
  margin-block: 1.1em;
}

.post-body :is(h2, h3, h4) {
  scroll-margin-top: 6rem;
}

.post-related {
  border: 0;
  border-left: 1px solid var(--line);
  border-radius: 0;
  padding: 0 0 0 1.3rem;
}

.post-outline {
  border-bottom: 1px solid var(--line);
  padding: 0.75rem 0;
  font-size: 0.9rem;
}

.post-outline summary {
  min-height: 44px;
  cursor: pointer;
}

.post-outline ul {
  list-style: none;
  padding: 0;
  line-height: 2;
}

.book-sidebar {
  max-height: calc(100dvh - 6.5rem);
  overflow-y: auto;
  overflow-wrap: anywhere;
}

.book-sidebar > section + section,
.book-sidebar > nav + section {
  margin-top: 1.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
}

.book-outline-list {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.4rem;
  font-size: 0.85rem;
  line-height: 1.6;
}

.book-outline-list a {
  color: var(--text-muted);
}

.book-outline-list a:hover {
  color: var(--accent);
}

.book-outline-subheading {
  padding-left: 0.8rem;
}

.book-outline-mobile {
  display: none;
}

.book-detail-cover {
  display: block;
  width: 160px;
  max-width: 100%;
  height: auto;
  margin: 1rem auto;
}
.category-disabled {
  display: inline-block;
  color: var(--text-muted);
  padding: 0.4rem 0.6rem;
}
.nav-disabled {
  display: block;
  color: var(--text-muted);
  padding: 0.5rem 0.75rem;
}

.book-detail-layout--single {
  grid-template-columns: minmax(0, 760px);
}

.post-reader-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 1.2rem 0;
  border-block: 1px solid var(--line);
  font-size: 0.85rem;
}

.post-share > [data-share-open] {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 4px;
  font: inherit;
  font-size: 0.85rem;
  flex-shrink: 0;
  min-height: 44px;
  padding: 0.35rem 0.85rem;
  cursor: pointer;
}

.post-share {
  display: contents;
}

html.post-share-is-open {
  overflow: hidden;
}

.post-share-dialog {
  width: min(680px, calc(100vw - 32px));
  max-height: calc(100dvh - 32px);
  margin: auto;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--bg);
  color: var(--text);
  box-shadow: 0 24px 80px rgb(0 0 0 / 20%);
  overflow: auto;
}

.post-share-dialog::backdrop {
  background: rgb(0 0 0 / 48%);
  backdrop-filter: blur(3px);
}

.post-share-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 20px 24px;
  border-bottom: 1px solid var(--line);
}

.post-share-header h2 {
  margin: 0;
  font-size: 1.35rem;
  line-height: 1.3;
}

.post-share-dialog .post-share-close {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--text-muted);
}

.post-share-content {
  padding: 28px 24px 20px;
}

.post-share-options {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px 12px;
  margin-bottom: 26px;
}

.post-share-dialog .post-share-choice {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: calc((100% - 48px) / 5);
  min-height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--text-muted);
  font: inherit;
  font-size: 0.95rem;
  line-height: 1.4;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}

.post-share-icon {
  display: grid;
  place-items: center;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  color: #fff;
}

.post-share-icon--email {
  background: #ef4439;
}

.post-share-icon--facebook {
  background: #1877f2;
}

.post-share-icon--reddit {
  background: #ff4500;
  font-family: Arial, sans-serif;
  font-size: 2rem;
  font-weight: 800;
}

.post-share-icon--whatsapp {
  background: #20cd64;
}

.post-share-icon--copy {
  background: #6b7280;
}

.post-share-dialog .post-share-choice:hover {
  color: var(--text);
  text-decoration: none;
}

.post-share-choice:hover .post-share-icon {
  filter: brightness(0.92);
}

.post-share-dialog button:focus-visible,
.post-share-dialog a:focus-visible,
.post-share-url:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.post-share-url-label {
  display: block;
  margin-bottom: 8px;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.post-share-url {
  box-sizing: border-box;
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-muted);
  color: var(--text);
  font: inherit;
  font-size: 0.85rem;
}

.post-share-feedback {
  min-height: 1.4em;
  margin: 10px 0 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}

@media (max-width: 520px) {
  .post-share-header {
    padding: 14px 16px;
  }

  .post-share-header h2 {
    font-size: 1.15rem;
  }

  .post-share-content {
    padding: 24px 16px 16px;
  }

  .post-share-dialog .post-share-choice {
    width: calc((100% - 24px) / 3);
    font-size: 0.85rem;
  }

  .post-share-icon {
    width: 64px;
    height: 64px;
  }
}

.site-footer {
  margin-top: 2rem;
  padding-bottom: max(2rem, env(safe-area-inset-bottom));
}

.footer-links .language-switch {
  border: 0;
  border-radius: 0;
  background: transparent;
  padding: 0;
  gap: 0.4rem;
}

.footer-link-group {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.footer-divider {
  color: var(--text-muted);
}

.resources-content {
  padding-block: 1.5rem;
}

.resources-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 2rem;
  align-items: start;
  margin-top: 2rem;
}

.resources-layout:not(:has([data-useful-info])) {
  grid-template-columns: minmax(0, 1fr);
}

.resources-favorites h2 {
  margin-top: 0;
  font-size: 1.1rem;
}

.resources-favorites {
  grid-column: 1;
  grid-row: 1;
}

.resources-favorite-groups {
  column-count: 2;
  column-gap: 1rem;
}

.resources-favorite-group {
  padding: 1rem;
  min-width: 0;
  break-inside: avoid;
  margin-bottom: 1rem;
}

.resources-favorite-group summary {
  min-height: 44px;
}

.resources-favorite-group .favorite-child-list {
  max-height: none;
  overflow: visible;
  padding: 0;
  scrollbar-gutter: auto;
  overflow-wrap: anywhere;
}

.resources-favorite-group .favorite-item a {
  min-height: 44px;
  align-items: center;
}

.resources-useful-info {
  display: block;
  width: 100%;
  margin: 0;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  white-space: normal;
  overflow: visible;
  order: 0;
  grid-column: 2;
  grid-row: 1;
}

.resources-useful-info .useful-info-block {
  display: block;
  margin-top: 0.85rem;
}

.resources-useful-info .useful-info-rate-list {
  display: grid;
}

@media (max-width: 840px) {
  .resources-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .resources-favorites,
  .resources-useful-info {
    grid-column: auto;
    grid-row: auto;
  }
}

@media (max-width: 520px) {
  .resources-favorite-groups {
    column-count: 1;
  }
}

.footer-links .language-option {
  min-height: 44px;
  min-width: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  font: inherit;
  letter-spacing: normal;
  text-transform: none;
}

.footer-links .language-option.is-active {
  font-weight: 600;
}

.footer-links .language-option:hover {
  color: var(--accent);
}

@media (max-width: 840px) {
  main {
    padding-top: 1.2rem;
  }

  .header-inner {
    min-height: 60px;
    padding-block: 0.5rem;
  }

  .home-content {
    grid-template-columns: minmax(0, 1fr);
  }

  .blog-masthead {
    padding: 0.6rem 0 1rem;
  }

  .blog-masthead-label {
    display: none;
  }

  .blog-masthead-description,
  .blog-header > p {
    font-size: 0.85rem;
  }

  .home-content > .home-intro {
    grid-column: 1;
    grid-row: 3;
    margin-top: 2.5rem;
    padding: 1.5rem 0 0;
    border: 0;
    border-top: 1px solid var(--line);
    gap: 1.25rem;
  }

  .home-search {
    width: 58%;
  }

  .home-search .blog-search-input {
    font-size: 0.95rem;
  }

  .blog-category-bar {
    margin-top: 1rem;
    gap: 0.8rem;
  }

  .blog-category-tabs {
    gap: 1rem;
  }

  .blog-category-tabs > :is(a, .category-disabled),
  .category-disclosure > summary {
    font-size: 0.82rem;
  }

  .post-item {
    padding-block: 1.3rem;
  }

  .post-item h2,
  .post-item h3 {
    font-size: 1.06rem;
  }

  .post-item--with-media {
    grid-template-columns: minmax(0, 1fr) 88px;
    gap: 1rem;
  }

  .post-item .post-card-media {
    width: 88px;
    height: 88px;
  }

  .post-excerpt {
    font-size: 0.86rem;
    line-height: 1.7;
  }

  .post-detail-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 2rem;
  }

  .post-header {
    padding-top: 0.5rem;
  }

  .post-body {
    padding: 0.6rem 0;
    font-size: 1rem;
    line-height: 1.9;
  }

  .post-related {
    border: 0;
    border-top: 1px solid var(--line);
    padding: 1.2rem 0 0;
  }

  .book-sidebar {
    max-height: none;
    overflow: visible;
  }

  .book-outline-mobile {
    display: block;
  }

  .book-outline-desktop {
    display: none;
  }

  .book-sidebar > nav + section {
    margin-top: 0;
    padding-top: 0;
    border-top: 0;
  }

  .book-sidebar:not(:has(section)) {
    display: none;
  }

  .post-outline ul {
    max-height: 50vh;
    overflow-y: auto;
  }

  .post-body th,
  .post-body td {
    min-width: 9rem;
  }
}