:root {
  --bg: #f4fbff;
  --bg-soft: #eaf6ff;
  --card: #ffffff;
  --card-soft: #f7fbff;
  --text: #173047;
  --text-soft: #4f6d84;
  --accent: #1f8bd3;
  --accent-soft: rgba(31, 139, 211, 0.12);
  --line: #d7e7f5;
  --sun: #ffb74d;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background:
    radial-gradient(circle at 10% 10%, rgba(255, 211, 135, 0.45), transparent 34%),
    radial-gradient(circle at 88% 14%, rgba(107, 197, 255, 0.34), transparent 38%),
    linear-gradient(180deg, var(--bg), #f9fcff 65%, #ffffff);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  min-height: 100vh;
}

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

a:hover {
  text-decoration: underline;
}

.top-page-nav {
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  left: 0;
  position: sticky;
  right: 0;
  top: 0;
  z-index: 20;
}

.top-page-nav-inner {
  align-items: center;
  display: flex;
  gap: 10px;
  justify-content: center;
  margin: 0 auto;
  max-width: 1180px;
  padding: 10px 16px;
}

.top-page-nav-link {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  display: inline-flex;
  font-size: 13px;
  font-weight: 600;
  padding: 7px 12px;
  text-decoration: none;
  transition: all 0.25s ease;
}

.top-page-nav-link:hover {
  background: #f0f8ff;
}

.top-page-nav-link.active,
.top-page-nav-link[aria-current='page'] {
  background: var(--accent-soft);
  border-color: rgba(31, 139, 211, 0.4);
  color: #0f5e95;
}

.holiday-nav-dropdown {
  position: relative;
}

.holiday-nav-toggle {
  align-items: center;
  cursor: pointer;
  display: inline-flex;
  gap: 6px;
  list-style: none;
}

.holiday-nav-toggle::-webkit-details-marker {
  display: none;
}

.holiday-nav-caret {
  font-size: 11px;
  transition: transform 0.2s ease;
}

.holiday-nav-dropdown[open] .holiday-nav-caret {
  transform: rotate(180deg);
}

.holiday-nav-menu {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 15px 34px rgba(12, 42, 63, 0.12);
  display: grid;
  gap: 8px;
  left: 0;
  margin-top: 8px;
  max-height: min(70vh, 430px);
  min-width: 280px;
  overflow-y: auto;
  padding: 10px;
  position: absolute;
  top: 100%;
  z-index: 30;
}

.holiday-nav-group {
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 8px;
  padding-bottom: 10px;
}

.holiday-nav-group:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.holiday-nav-group-title {
  color: #3d5f79;
  font-size: 12px;
  font-weight: 700;
  margin: 0;
  text-transform: uppercase;
}

.holiday-nav-group-links {
  display: grid;
  gap: 5px;
}

.holiday-nav-link {
  border: 1px solid transparent;
  border-radius: 9px;
  color: var(--text-soft);
  font-size: 13px;
  font-weight: 500;
  padding: 7px 9px;
  text-decoration: none;
}

.holiday-nav-link:hover {
  background: #f4faff;
  border-color: var(--line);
}

.holiday-nav-link[aria-current='page'] {
  background: var(--accent-soft);
  border-color: rgba(31, 139, 211, 0.38);
  color: #0f5e95;
}

.holiday-nav-link--muted {
  color: #7f99ad;
  font-size: 12px;
}

.blog-wrap {
  margin: 0 auto;
  max-width: 1200px;
  padding: 28px 18px 56px;
}

.blog-hero {
  background: linear-gradient(130deg, #fff9ef 0%, #e7f4ff 56%, #f2f9ff 100%);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 16px 34px rgba(25, 70, 104, 0.09);
  padding: 30px 28px;
}

.blog-hero h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.12;
  margin: 0;
}

.blog-hero p {
  color: var(--text-soft);
  font-size: 17px;
  line-height: 1.75;
  margin: 12px 0 0;
  max-width: 860px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.hero-link {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 13px;
}

.hero-link:hover {
  border-color: rgba(31, 139, 211, 0.5);
  text-decoration: none;
}

.blog-toolbar {
  align-items: end;
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr minmax(180px, 220px);
  margin-top: 20px;
}

.search-box,
.filter-box {
  display: grid;
  gap: 7px;
}

.search-box label,
.filter-box label {
  color: #3f6078;
  font-size: 13px;
  font-weight: 600;
}

#blog-search,
#blog-category {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 11px;
  color: var(--text);
  font-size: 14px;
  min-height: 44px;
  padding: 10px 12px;
}

#blog-search:focus,
#blog-category:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(31, 139, 211, 0.15);
  outline: none;
}

#filter-count {
  color: #4e6c83;
  font-size: 13px;
  margin: 10px 0 0;
}

.blog-section {
  margin-top: 30px;
}

.section-head {
  align-items: baseline;
  display: flex;
  gap: 10px;
  justify-content: space-between;
  margin-bottom: 12px;
}

.section-head h2 {
  font-family: 'Playfair Display', serif;
  font-size: 30px;
  margin: 0;
}

.section-head p {
  color: var(--text-soft);
  font-size: 14px;
  margin: 0;
}

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

.article-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.category-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.article-card,
.category-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 10px 24px rgba(21, 65, 97, 0.06);
  display: block;
  padding: 18px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

button.category-card {
  appearance: none;
  cursor: pointer;
  font: inherit;
  text-align: left;
  width: 100%;
}

.article-card:hover,
.category-card:hover {
  border-color: rgba(31, 139, 211, 0.34);
  box-shadow: 0 14px 26px rgba(21, 65, 97, 0.11);
  text-decoration: none;
  transform: translateY(-2px);
}

.card-meta {
  align-items: center;
  color: #62829a;
  display: flex;
  flex-wrap: wrap;
  font-size: 12px;
  font-weight: 600;
  gap: 8px;
  text-transform: uppercase;
}

.badge {
  background: var(--accent-soft);
  border-radius: 999px;
  color: #0f5e95;
  font-size: 11px;
  padding: 3px 8px;
}

.article-card h3,
.category-card h3 {
  color: var(--text);
  font-size: 21px;
  line-height: 1.35;
  margin: 11px 0 8px;
}

.article-card p,
.category-card p {
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
}

.article-card .card-footer {
  color: #0f5e95;
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  margin-top: 13px;
}

.category-card .card-footer {
  color: #3f6078;
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  margin-top: 12px;
}

.blog-layout {
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(0, 2fr) minmax(260px, 0.9fr);
  margin-top: 30px;
}

.sidebar-panel {
  background: var(--card-soft);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
}

.sidebar-panel + .sidebar-panel {
  margin-top: 12px;
}

.sidebar-panel h3 {
  color: var(--text);
  font-size: 18px;
  margin: 0 0 10px;
}

.sidebar-list {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
}

.sidebar-list li {
  list-style: none;
}

.sidebar-list a {
  color: #245a83;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.45;
}

.mini-note {
  color: #5a788f;
  font-size: 13px;
  line-height: 1.6;
  margin: 0;
}

.hidden {
  display: none !important;
}

.blog-cta {
  background: linear-gradient(140deg, #fff5e5 0%, #e4f4ff 100%);
  border: 1px solid var(--line);
  border-radius: 18px;
  margin-top: 30px;
  padding: 24px;
}

.blog-cta h2 {
  font-family: 'Playfair Display', serif;
  font-size: 30px;
  margin: 0;
}

.blog-cta p {
  color: var(--text-soft);
  line-height: 1.75;
  margin: 10px 0 0;
}

.cta-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 15px;
}

.site-footer {
  border-top: 1px solid var(--line);
  color: #5f7e95;
  font-size: 13px;
  margin-top: 34px;
  padding-top: 18px;
  text-align: center;
}

/* Article page styles */
.article-wrap {
  margin: 0 auto;
  max-width: 980px;
  padding: 26px 18px 56px;
}

.breadcrumb {
  color: #5f7f95;
  font-size: 13px;
  margin-bottom: 16px;
}

.breadcrumb a {
  color: #245a83;
}

.article-header {
  background: linear-gradient(130deg, #fffaf0 0%, #eef7ff 100%);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 10px 22px rgba(16, 56, 89, 0.08);
  padding: 24px;
}

.article-header h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(30px, 3.5vw, 42px);
  line-height: 1.2;
  margin: 0;
}

.article-header .meta {
  color: #55748b;
  font-size: 13px;
  margin-top: 10px;
}

.article-content {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 18px;
  margin-top: 16px;
  padding: 24px;
}

.article-content p,
.article-content li {
  color: #2e4a60;
  font-size: 16px;
  line-height: 1.8;
}

.article-content h2 {
  color: #173047;
  font-family: 'Playfair Display', serif;
  font-size: 30px;
  margin: 30px 0 10px;
}

.article-content h3 {
  color: #1f3e57;
  font-size: 22px;
  margin: 20px 0 8px;
}

.article-content ul {
  margin: 10px 0 12px;
  padding-left: 22px;
}

.article-content table {
  border-collapse: collapse;
  margin: 14px 0;
  width: 100%;
}

.article-content th,
.article-content td {
  border: 1px solid var(--line);
  font-size: 14px;
  padding: 10px;
  text-align: left;
}

.article-content th {
  background: #f2f9ff;
  color: #244e6f;
}

.article-note {
  background: #f4fbff;
  border-left: 4px solid #78bff2;
  border-radius: 8px;
  color: #355a75;
  font-size: 14px;
  margin: 16px 0;
  padding: 12px 13px;
}

.related {
  background: #f9fcff;
  border: 1px solid var(--line);
  border-radius: 14px;
  margin-top: 18px;
  padding: 16px;
}

.related h3 {
  font-size: 20px;
  margin: 0 0 8px;
}

.related ul {
  margin: 0;
  padding-left: 18px;
}

.back-link {
  color: #245a83;
  display: inline-flex;
  font-size: 14px;
  font-weight: 600;
  margin-top: 16px;
}

@media (max-width: 1040px) {
  .featured-grid,
  .category-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .blog-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .blog-wrap,
  .article-wrap {
    padding: 20px 14px 40px;
  }

  .blog-toolbar {
    grid-template-columns: 1fr;
  }

  .article-grid,
  .featured-grid,
  .category-grid {
    grid-template-columns: 1fr;
  }

  .article-header,
  .article-content {
    padding: 18px;
  }

  .article-content h2 {
    font-size: 25px;
  }
}