:root {
  --color-primary: #1a5276;
  --color-primary-light: #2980b9;
  --color-primary-dark: #0e3a54;
  --color-accent: #e67e22;
  --color-accent-light: #f39c12;
  --color-bg: #ffffff;
  --color-bg-alt: #f7f9fc;
  --color-bg-warm: #fdfaf6;
  --color-text: #2c3e50;
  --color-text-light: #5d6d7e;
  --color-text-muted: #95a5a6;
  --color-border: #e8ecf1;
  --color-border-light: #f0f3f7;
  --color-success: #27ae60;
  --color-warning: #f39c12;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.1);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.12);
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  --spacing-4xl: 96px;
  --spacing-5xl: 128px;
  --font-heading: "Noto Serif KR", "Pretendard Variable", serif;
  --font-body: "Pretendard Variable", -apple-system, BlinkMacSystemFont, sans-serif;
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --max-width: 1200px;
  --content-width: 780px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a { color: var(--color-primary-light); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-accent); }

/* ===== HEADER ===== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
  padding: 0 var(--spacing-lg);
}
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.site-logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--color-text);
}
.site-logo img { width: 36px; height: 36px; border-radius: var(--radius-sm); }
.site-logo-text {
  font-family: var(--font-heading);
  font-size: 1.05rem; font-weight: 700;
  color: var(--color-primary-dark);
  letter-spacing: -0.02em;
}
.nav-menu { display: flex; gap: var(--spacing-xl); list-style: none; }
.nav-menu a {
  font-size: 0.9rem; font-weight: 500; color: var(--color-text-light);
  padding: var(--spacing-sm) 0; position: relative;
  transition: color var(--transition-fast);
}
.nav-menu a:hover { color: var(--color-primary); }
.nav-menu a::after {
  content: ""; position: absolute; bottom: -2px; left: 0;
  width: 0; height: 2px; background: var(--color-accent);
  transition: width var(--transition-base);
}
.nav-menu a:hover::after { width: 100%; }

.mobile-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.mobile-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--color-text); margin: 5px 0;
  transition: var(--transition-base);
}

/* ===== HERO ===== */
.hero-section {
  position: relative; min-height: 520px;
  display: flex; align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 60%, var(--color-primary-light) 100%);
}
.hero-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0.18;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(14,58,84,0.85) 0%, rgba(26,82,118,0.6) 100%);
}
.hero-content {
  position: relative; z-index: 2;
  max-width: var(--max-width); margin: 0 auto;
  padding: var(--spacing-5xl) var(--spacing-lg);
  color: #fff;
}
.hero-badge {
  display: inline-block;
  font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 6px 16px; border-radius: 50px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  margin-bottom: var(--spacing-lg);
  backdrop-filter: blur(4px);
}
.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700; line-height: 1.25;
  letter-spacing: -0.03em;
  margin-bottom: var(--spacing-lg);
  max-width: 640px;
}
.hero-desc {
  font-size: 1.1rem; line-height: 1.8;
  opacity: 0.9; max-width: 540px;
  margin-bottom: var(--spacing-xl);
}
.hero-stats {
  display: flex; gap: var(--spacing-2xl);
  margin-top: var(--spacing-xl);
}
.hero-stat { text-align: center; }
.hero-stat-num {
  font-family: var(--font-heading);
  font-size: 1.6rem; font-weight: 700;
  display: block; margin-bottom: 4px;
}
.hero-stat-label { font-size: 0.82rem; opacity: 0.7; }

/* ===== SECTION ===== */
.section {
  padding: var(--spacing-4xl) var(--spacing-lg);
}
.section--alt { background: var(--color-bg-alt); }
.section--warm { background: var(--color-bg-warm); }
.section-inner {
  max-width: var(--max-width); margin: 0 auto;
}
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}
.section-tag {
  display: inline-block;
  font-size: 0.78rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--spacing-sm);
}
.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700; color: var(--color-text);
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-md);
}
.section-desc {
  font-size: 1rem; color: var(--color-text-light);
  max-width: 580px; margin: 0 auto;
  line-height: 1.7;
}

/* ===== CARD GRID ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--spacing-xl);
}
.post-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.post-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.post-card-img {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
}
.post-card-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.post-card:hover .post-card-img img { transform: scale(1.04); }
.post-card-body {
  padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-xl);
}
.post-card-cat {
  font-size: 0.75rem; font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--spacing-sm);
}
.post-card-title {
  font-family: var(--font-heading);
  font-size: 1.15rem; font-weight: 700;
  line-height: 1.45;
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.01em;
}
.post-card-title a { color: inherit; }
.post-card-title a:hover { color: var(--color-primary); }
.post-card-excerpt {
  font-size: 0.88rem;
  color: var(--color-text-light);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-card-meta {
  display: flex; align-items: center; gap: var(--spacing-md);
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border-light);
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

/* ===== CAROUSEL ===== */
.carousel-wrap {
  position: relative;
  overflow: hidden;
  margin: 0 -var(--spacing-lg);
  padding: 0 var(--spacing-lg);
}
.carousel-track {
  display: flex; gap: var(--spacing-xl);
  overflow-x: auto; scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none; padding-bottom: var(--spacing-md);
}
.carousel-track::-webkit-scrollbar { display: none; }
.carousel-track .post-card {
  flex: 0 0 340px; scroll-snap-align: start;
}

/* ===== INFO BOXES ===== */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-lg);
}
.info-box {
  padding: var(--spacing-xl);
  background: var(--color-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}
.info-box:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
}
.info-box-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--spacing-md);
}
.info-box-icon svg { width: 24px; height: 24px; color: #fff; }
.info-box-title {
  font-family: var(--font-heading);
  font-size: 1.05rem; font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}
.info-box-desc {
  font-size: 0.88rem; color: var(--color-text-light);
  line-height: 1.65;
}

/* ===== SINGLE POST ===== */
.single-hero {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  padding: var(--spacing-4xl) var(--spacing-lg) var(--spacing-3xl);
  color: #fff;
}
.single-hero-inner {
  max-width: var(--content-width); margin: 0 auto;
  text-align: center;
}
.single-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700; line-height: 1.35;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-md);
}
.single-meta {
  font-size: 0.85rem; opacity: 0.75;
  display: flex; gap: var(--spacing-md); justify-content: center;
}
.single-thumb {
  max-width: var(--content-width); margin: -40px auto 0;
  padding: 0 var(--spacing-lg); position: relative; z-index: 2;
}
.single-thumb img {
  width: 100%; border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  aspect-ratio: 16/9; object-fit: cover;
}
.single-content {
  max-width: var(--content-width); margin: 0 auto;
  padding: var(--spacing-2xl) var(--spacing-lg) var(--spacing-4xl);
}
.single-content h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem; font-weight: 700;
  color: var(--color-primary-dark);
  margin: var(--spacing-2xl) 0 var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--color-border);
  letter-spacing: -0.01em;
}
.single-content h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem; font-weight: 700;
  color: var(--color-text);
  margin: var(--spacing-xl) 0 var(--spacing-sm);
}
.single-content p {
  font-size: 1.02rem; line-height: 1.78;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
  word-break: keep-all;
}
.single-content ul, .single-content ol {
  margin: var(--spacing-md) 0;
  padding-left: var(--spacing-xl);
}
.single-content li {
  margin-bottom: var(--spacing-sm);
  line-height: 1.7;
}
.single-content img {
  border-radius: var(--radius-md);
  margin: var(--spacing-xl) 0;
  box-shadow: var(--shadow-sm);
}
.single-content table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: var(--spacing-xl) 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  font-size: 0.92rem;
}
.single-content th {
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
  padding: 14px 16px;
  text-align: left;
  font-size: 0.88rem;
}
.single-content td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border-light);
  vertical-align: top;
}
.single-content tr:nth-child(even) td { background: var(--color-bg-alt); }
.single-content tr:last-child td { border-bottom: none; }
.single-content blockquote {
  border-left: 4px solid var(--color-accent);
  background: var(--color-bg-warm);
  padding: var(--spacing-lg) var(--spacing-xl);
  margin: var(--spacing-xl) 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: 0.98rem;
  color: var(--color-text);
}
.single-content .wp-block-table { overflow-x: auto; }

/* Related posts */
.related-posts {
  max-width: var(--content-width); margin: 0 auto;
  padding: 0 var(--spacing-lg) var(--spacing-4xl);
}
.related-posts-title {
  font-family: var(--font-heading);
  font-size: 1.3rem; font-weight: 700;
  margin-bottom: var(--spacing-xl);
  color: var(--color-text);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--spacing-lg);
}
.related-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  transition: box-shadow var(--transition-base);
}
.related-card:hover { box-shadow: var(--shadow-md); }
.related-card img { aspect-ratio: 16/10; object-fit: cover; }
.related-card-body { padding: var(--spacing-md); }
.related-card-body a {
  font-size: 0.9rem; font-weight: 600;
  color: var(--color-text); line-height: 1.45;
}

/* ===== PAGE ===== */
.page-content {
  max-width: var(--content-width); margin: 0 auto;
  padding: var(--spacing-3xl) var(--spacing-lg) var(--spacing-4xl);
}
.page-content h1 {
  font-family: var(--font-heading);
  font-size: 1.8rem; font-weight: 700;
  margin-bottom: var(--spacing-xl);
  color: var(--color-primary-dark);
}
.page-content h2 {
  font-family: var(--font-heading);
  font-size: 1.3rem; font-weight: 700;
  margin: var(--spacing-xl) 0 var(--spacing-md);
  color: var(--color-text);
}
.page-content p {
  font-size: 0.95rem; line-height: 1.75;
  margin-bottom: var(--spacing-md);
}
.page-content ul, .page-content ol {
  padding-left: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}
.page-content li { margin-bottom: var(--spacing-xs); line-height: 1.65; font-size: 0.95rem; }

/* ===== FOOTER ===== */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.7);
  padding: var(--spacing-3xl) var(--spacing-lg) var(--spacing-xl);
}
.footer-inner {
  max-width: var(--max-width); margin: 0 auto;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-2xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: var(--spacing-xl);
  flex-wrap: wrap;
}
.footer-brand {
  max-width: 360px;
}
.footer-logo {
  display: inline-flex; align-items: center; gap: 10px;
  color: #fff; margin-bottom: var(--spacing-sm);
}
.footer-logo:hover { color: #fff; }
.footer-logo img {
  width: 36px; height: 36px; object-fit: contain;
  border-radius: var(--radius-sm); flex: 0 0 36px;
}
.footer-brand-name {
  font-family: var(--font-heading);
  font-size: 1.1rem; font-weight: 700;
  color: inherit;
}
.footer-brand-desc {
  font-size: 0.85rem; line-height: 1.7;
}
.footer-links { display: flex; gap: var(--spacing-2xl); flex-wrap: wrap; }
.footer-links-group h4 {
  font-size: 0.82rem; font-weight: 600;
  color: #fff; margin-bottom: var(--spacing-md);
  text-transform: uppercase; letter-spacing: 0.08em;
}
.footer-links-group ul { list-style: none; }
.footer-links-group li { margin-bottom: var(--spacing-sm); }
.footer-links-group a {
  font-size: 0.85rem; color: rgba(255,255,255,0.6);
  transition: color var(--transition-fast);
}
.footer-links-group a:hover { color: #fff; }
.footer-bottom {
  font-size: 0.78rem; color: rgba(255,255,255,0.4);
  line-height: 1.65;
}
.footer-notice {
  font-size: 0.76rem; color: rgba(255,255,255,0.35);
  margin-top: var(--spacing-md); line-height: 1.6;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px;
  font-size: 0.9rem; font-weight: 600;
  border-radius: var(--radius-md);
  border: none; cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  line-height: 1;
}
.btn--primary {
  background: var(--color-accent);
  color: #fff;
}
.btn--primary:hover {
  background: var(--color-accent-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(230,126,34,0.3);
  color: #fff;
}
.btn--outline {
  background: transparent;
  border: 1.5px solid rgba(255,255,255,0.3);
  color: #fff;
}
.btn--outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.5);
  color: #fff;
}

/* ===== MOBILE ===== */
@media (max-width: 768px) {
  .hero-section { min-height: 420px; }
  .hero-content { padding: var(--spacing-3xl) var(--spacing-lg); }
  .hero-stats { gap: var(--spacing-xl); }
  .hero-stat-num { font-size: 1.3rem; }
  .nav-menu { display: none; }
  .mobile-toggle { display: block; }
  .nav-menu.is-open {
    display: flex; flex-direction: column;
    position: absolute; top: 68px; left: 0; right: 0;
    background: #fff; padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
  }
  .card-grid { grid-template-columns: 1fr; }
  .carousel-track .post-card { flex: 0 0 85vw; }
  .info-grid { grid-template-columns: 1fr; }
  .section { padding: var(--spacing-3xl) var(--spacing-md); }
  .footer-top { flex-direction: column; }
  .footer-links { flex-direction: column; gap: var(--spacing-xl); }
  .single-hero { padding: var(--spacing-3xl) var(--spacing-md) var(--spacing-xl); }
  .single-content table { font-size: 0.82rem; }
  .single-content th, .single-content td { padding: 10px 12px; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 1.6rem; }
  .hero-desc { font-size: 0.95rem; }
  .header-inner { height: 56px; }
  .site-logo img, .footer-logo img { width: 32px; height: 32px; flex-basis: 32px; }
  .site-logo-text, .footer-brand-name { font-size: 0.95rem; }
  .section-title { font-size: 1.3rem; }
}

/* ===== SCROLL ANIMATIONS ===== */
.fade-up {
  opacity: 0; transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-up.is-visible { opacity: 1; transform: translateY(0); }

/* ===== LEGAL NOTICES ===== */
.legal-notice, .ai-notice {
  font-size: 0.85rem !important;
  line-height: 1.6;
}

/* ===== TABLE RESPONSIVE ===== */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: var(--spacing-xl) 0; }

/* ===== FOCUS ===== */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ===== TOC ===== */
.toc-box {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg) var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}
.toc-box h4 {
  font-family: var(--font-heading);
  font-size: 0.95rem; font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary-dark);
}
.toc-box ol { padding-left: var(--spacing-lg); }
.toc-box li {
  margin-bottom: var(--spacing-sm);
  font-size: 0.9rem;
}
.toc-box a { color: var(--color-text-light); }
.toc-box a:hover { color: var(--color-primary); }