:root {
  --color-primary: #1a365d;
  --color-primary-light: #2b4c7e;
  --color-accent: #c9a84c;
  --color-accent-light: #dbbf6f;
  --color-bg: #ffffff;
  --color-bg-warm: #faf8f5;
  --color-bg-section: #f5f3ef;
  --color-text: #2d3748;
  --color-text-light: #718096;
  --color-text-muted: #a0aec0;
  --color-border: #e2e0dc;
  --color-border-light: #efeде9;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(26,54,93,0.06);
  --shadow-md: 0 4px 16px rgba(26,54,93,0.08);
  --shadow-lg: 0 8px 32px rgba(26,54,93,0.12);
  --shadow-xl: 0 16px 48px rgba(26,54,93,0.16);
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;
  --space-5xl: 128px;
  --font-sans: 'Pretendard Variable', 'Pretendard', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-serif: 'Noto Serif KR', Georgia, serif;
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --content-width: 780px;
  --site-width: 1200px;
}

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

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

html { font-size: 16px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.75;
  letter-spacing: -0.01em;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); 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);
  padding: 0 var(--space-lg);
}
.header-inner {
  max-width: var(--site-width);
  margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.header-brand { display: flex; align-items: center; gap: var(--space-md); }
.header-brand .brand-logo { width: 40px; height: 40px; border-radius: var(--radius-sm); }
.header-brand .brand-name {
  font-family: var(--font-serif);
  font-size: 1.15rem; font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}
.header-nav { display: flex; gap: var(--space-lg); align-items: center; }
.header-nav a {
  font-size: 0.9rem; font-weight: 500; color: var(--color-text);
  padding: var(--space-sm) 0;
  position: relative;
}
.header-nav a::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 0; height: 2px; background: var(--color-accent);
  transition: width var(--transition-base);
}
.header-nav a:hover::after { width: 100%; }
.header-nav a:hover { color: var(--color-primary); }

.mobile-toggle {
  display: none; background: none; border: none; cursor: pointer;
  width: 44px; height: 44px; align-items: center; justify-content: center;
}
.mobile-toggle span {
  display: block; width: 22px; height: 2px; background: var(--color-text);
  position: relative; transition: var(--transition-fast);
}
.mobile-toggle span::before, .mobile-toggle span::after {
  content: ''; position: absolute; left: 0;
  width: 22px; height: 2px; background: var(--color-text);
  transition: var(--transition-fast);
}
.mobile-toggle span::before { top: -7px; }
.mobile-toggle span::after { top: 7px; }

@media (max-width: 768px) {
  .mobile-toggle { display: flex; }
  .header-nav {
    position: fixed; top: 72px; left: 0; right: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(12px);
    flex-direction: column; padding: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-120%); transition: transform var(--transition-base);
    gap: var(--space-sm);
  }
  .header-nav.is-open { transform: translateY(0); }
  .header-nav a { padding: var(--space-md) 0; font-size: 1rem; width: 100%; }
}

/* ===== HERO ===== */
.hero-section {
  position: relative; overflow: hidden;
  min-height: 540px; display: flex; align-items: center;
  background: var(--color-primary);
}
.hero-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0.25;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(26,54,93,0.92) 0%, rgba(43,76,126,0.85) 50%, rgba(26,54,93,0.75) 100%);
}
.hero-content {
  position: relative; z-index: 2;
  max-width: var(--site-width); margin: 0 auto;
  padding: var(--space-5xl) var(--space-lg);
  color: #fff;
}
.hero-eyebrow {
  font-size: 0.85rem; font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.08em; text-transform: uppercase;
  margin-bottom: var(--space-md);
}
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700; line-height: 1.25;
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
  max-width: 680px;
}
.hero-desc {
  font-size: 1.1rem; line-height: 1.8;
  color: rgba(255,255,255,0.85);
  max-width: 560px;
  margin-bottom: var(--space-2xl);
}
.hero-cta {
  display: inline-flex; align-items: center; gap: var(--space-sm);
  background: var(--color-accent); color: var(--color-primary);
  padding: 14px 32px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 0.95rem;
  transition: all var(--transition-base);
  border: none; cursor: pointer;
}
.hero-cta:hover {
  background: var(--color-accent-light);
  color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(201,168,76,0.3);
}
.hero-cta svg { width: 18px; height: 18px; }

/* ===== SECTIONS ===== */
.section { padding: var(--space-4xl) var(--space-lg); }
.section-alt { background: var(--color-bg-warm); }
.section-inner { max-width: var(--site-width); margin: 0 auto; }
.section-header { text-align: center; margin-bottom: var(--space-3xl); }
.section-eyebrow {
  font-size: 0.8rem; font-weight: 600;
  color: var(--color-accent); letter-spacing: 0.1em;
  text-transform: uppercase; margin-bottom: var(--space-sm);
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700; color: var(--color-primary);
  letter-spacing: -0.02em;
}
.section-subtitle {
  color: var(--color-text-light);
  font-size: 1rem; margin-top: var(--space-md);
  max-width: 560px; margin-left: auto; margin-right: auto;
}

/* ===== CARD GRID ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-lg);
}
@media (max-width: 768px) {
  .card-grid { grid-template-columns: 1fr; }
}
.card {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}
.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: transparent;
}
.card-image {
  position: relative; overflow: hidden;
  aspect-ratio: 16/10;
}
.card-image img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform var(--transition-base);
}
.card:hover .card-image img { transform: scale(1.04); }
.card-body { padding: var(--space-lg); }
.card-category {
  font-size: 0.75rem; font-weight: 600;
  color: var(--color-accent); letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}
.card-title {
  font-family: var(--font-serif);
  font-size: 1.1rem; font-weight: 700;
  color: var(--color-primary); line-height: 1.5;
  margin-bottom: var(--space-md);
  letter-spacing: -0.01em;
}
.card-excerpt {
  font-size: 0.9rem; color: var(--color-text-light);
  line-height: 1.7;
  display: -webkit-box; -webkit-line-clamp: 3;
  -webkit-box-orient: vertical; overflow: hidden;
}
.card-meta {
  display: flex; align-items: center; gap: var(--space-md);
  margin-top: var(--space-md); padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem; color: var(--color-text-muted);
}

/* ===== CAROUSEL ===== */
.carousel-section { overflow: hidden; }
.carousel-track {
  display: flex; gap: var(--space-lg);
  overflow-x: auto; scroll-snap-type: x mandatory;
  padding: var(--space-sm) var(--space-lg) var(--space-lg);
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.carousel-track::-webkit-scrollbar { display: none; }
.carousel-track .card {
  flex: 0 0 360px; scroll-snap-align: start;
}
@media (max-width: 768px) {
  .carousel-track .card { flex: 0 0 calc(100vw - 48px); }
}
.carousel-controls {
  display: flex; justify-content: center; gap: var(--space-md);
  margin-top: var(--space-lg);
}
.carousel-btn {
  width: 44px; height: 44px;
  border-radius: 50%; border: 1px solid var(--color-border);
  background: var(--color-bg); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition-fast);
  color: var(--color-text);
}
.carousel-btn:hover {
  background: var(--color-primary); color: #fff;
  border-color: var(--color-primary);
}

/* ===== FEATURE BLOCKS ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}
@media (max-width: 768px) {
  .features-grid { grid-template-columns: 1fr; }
}
.feature-item {
  text-align: center; padding: var(--space-2xl) var(--space-lg);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}
.feature-item:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}
.feature-icon {
  width: 56px; height: 56px; margin: 0 auto var(--space-lg);
  background: var(--color-bg-warm);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
}
.feature-icon svg { width: 28px; height: 28px; color: var(--color-accent); }
.feature-title {
  font-family: var(--font-serif);
  font-size: 1.05rem; font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}
.feature-desc {
  font-size: 0.9rem; color: var(--color-text-light);
  line-height: 1.7;
}

/* ===== SINGLE POST ===== */
.single-hero {
  position: relative; overflow: hidden;
  min-height: 360px; display: flex; align-items: flex-end;
  background: var(--color-primary);
}
.single-hero .hero-bg { opacity: 0.3; }
.single-hero .hero-overlay {
  background: linear-gradient(to top, rgba(26,54,93,0.95) 0%, rgba(26,54,93,0.4) 100%);
}
.single-hero-content {
  position: relative; z-index: 2;
  max-width: var(--site-width); margin: 0 auto;
  padding: var(--space-3xl) var(--space-lg) var(--space-2xl);
  color: #fff; width: 100%;
}
.single-hero-title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700; line-height: 1.35;
  letter-spacing: -0.02em;
}
.single-hero-meta {
  margin-top: var(--space-md);
  font-size: 0.85rem; color: rgba(255,255,255,0.7);
  display: flex; gap: var(--space-lg);
}

/* ===== ARTICLE CONTENT ===== */
.article-content {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: var(--space-3xl) var(--space-lg);
}
.article-content p {
  font-size: 1.05rem; line-height: 1.8;
  margin-bottom: 1.6em;
  color: var(--color-text);
  word-break: keep-all;
}
.article-content h2 {
  font-family: var(--font-serif);
  font-size: 1.55rem; font-weight: 700;
  color: var(--color-primary);
  margin: 2.5em 0 1em;
  padding-bottom: 0.5em;
  border-bottom: 2px solid var(--color-bg-section);
  letter-spacing: -0.02em;
  line-height: 1.4;
}
.article-content h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem; font-weight: 700;
  color: var(--color-primary-light);
  margin: 2em 0 0.8em;
  line-height: 1.4;
}
.article-content ul, .article-content ol {
  margin: 1.2em 0; padding-left: 1.5em;
}
.article-content li {
  margin-bottom: 0.6em; line-height: 1.7;
  font-size: 1rem;
}
.article-content img {
  border-radius: var(--radius-md);
  margin: 2em 0;
  box-shadow: var(--shadow-sm);
}
.article-content blockquote {
  margin: 2em 0;
  padding: var(--space-lg) var(--space-xl);
  background: var(--color-bg-warm);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: 1rem;
  color: var(--color-text);
}
.article-content blockquote p { margin-bottom: 0; }
.article-content table {
  width: 100%; border-collapse: collapse;
  margin: 2em 0; font-size: 0.92rem;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}
.article-content thead th {
  background: var(--color-primary);
  color: #fff; font-weight: 600;
  padding: 14px 16px; text-align: left;
  font-size: 0.88rem;
}
.article-content tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}
.article-content tbody tr:nth-child(even) { background: var(--color-bg-warm); }
.article-content tbody tr:hover { background: #f0ede6; }

.article-content .info-box {
  background: linear-gradient(135deg, #f0f4f8 0%, #e8ecf1 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  margin: 2em 0;
}
.article-content .info-box h4 {
  font-family: var(--font-serif);
  font-size: 1.05rem; font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}
.article-content .summary-box {
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  margin-bottom: 2em;
}
.article-content .summary-box h4 {
  color: var(--color-accent);
  font-family: var(--font-serif);
  font-size: 1rem; margin-bottom: var(--space-md);
}
.article-content .summary-box p,
.article-content .summary-box li {
  color: rgba(255,255,255,0.9);
  font-size: 0.95rem;
}
.article-content .timeline {
  position: relative;
  padding-left: 32px;
  margin: 2em 0;
}
.article-content .timeline::before {
  content: '';
  position: absolute; left: 11px; top: 0; bottom: 0;
  width: 2px; background: var(--color-border);
}
.article-content .timeline-step {
  position: relative;
  margin-bottom: var(--space-xl);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg-warm);
  border-radius: var(--radius-md);
}
.article-content .timeline-step::before {
  content: '';
  position: absolute; left: -27px; top: 18px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 3px solid var(--color-bg);
  box-shadow: var(--shadow-sm);
}
.article-content .timeline-step strong {
  color: var(--color-primary);
  font-family: var(--font-serif);
}

/* Table responsive */
.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 2em 0;
}
.table-responsive table { margin: 0; min-width: 500px; }

/* ===== FOOTER ===== */
.site-footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.7);
  padding: var(--space-3xl) var(--space-lg) var(--space-xl);
}
.footer-inner {
  max-width: var(--site-width); margin: 0 auto;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
@media (max-width: 768px) {
  .footer-top { grid-template-columns: 1fr; }
}
.footer-brand .brand-name {
  font-family: var(--font-serif);
  font-size: 1.2rem; font-weight: 700;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}
.footer-brand p { font-size: 0.88rem; line-height: 1.7; }
.footer-links h4 {
  font-size: 0.85rem; font-weight: 600; color: #fff;
  margin-bottom: var(--space-md);
  letter-spacing: 0.05em;
}
.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: var(--space-sm); }
.footer-links a { color: rgba(255,255,255,0.6); font-size: 0.88rem; }
.footer-links a:hover { color: var(--color-accent); }
.footer-bottom {
  padding-top: var(--space-xl);
  display: flex; flex-wrap: wrap; justify-content: space-between;
  gap: var(--space-md);
}
.footer-legal {
  font-size: 0.78rem; color: rgba(255,255,255,0.4);
  line-height: 1.8;
  max-width: 100%;
}
.footer-legal p { margin-bottom: var(--space-xs); }
.footer-disclaimer {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
  background: rgba(255,255,255,0.05);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-sm);
  margin-top: var(--space-lg);
  line-height: 1.7;
}

/* ===== RELATED POSTS ===== */
.related-section {
  background: var(--color-bg-warm);
  padding: var(--space-3xl) var(--space-lg);
}
.related-inner { max-width: var(--site-width); margin: 0 auto; }

/* ===== PAGE TEMPLATE ===== */
.page-content {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: var(--space-3xl) var(--space-lg);
}
.page-content h1 {
  font-family: var(--font-serif);
  font-size: 1.8rem; font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-md);
  border-bottom: 2px solid var(--color-bg-section);
}
.page-content h2 {
  font-family: var(--font-serif);
  font-size: 1.3rem; font-weight: 700;
  color: var(--color-primary);
  margin: 2em 0 0.8em;
}
.page-content p {
  font-size: 1rem; line-height: 1.8;
  margin-bottom: 1.2em;
}
.page-content ul, .page-content ol { margin: 1em 0; padding-left: 1.5em; }
.page-content li { margin-bottom: 0.4em; }

/* ===== TOC (Table of Contents) ===== */
#ez-toc-container {
  background: var(--color-bg-warm) !important;
  border: 1px solid var(--color-border) !important;
  border-radius: var(--radius-md) !important;
  padding: var(--space-lg) var(--space-xl) !important;
  margin-bottom: 2em !important;
  box-shadow: none !important;
}
#ez-toc-container .ez-toc-title {
  font-family: var(--font-serif) !important;
  font-size: 1rem !important;
  color: var(--color-primary) !important;
}
#ez-toc-container a {
  color: var(--color-text) !important;
  font-size: 0.92rem !important;
}
#ez-toc-container a:hover { color: var(--color-accent) !important; }

/* ===== LEGAL NOTICES IN POSTS ===== */
.legal-notice {
  font-size: 0.85em !important;
  color: #777 !important;
  background: #f8f9fa !important;
  border-left: 3px solid #cbd5e1 !important;
  padding: 10px 14px !important;
  margin-top: 2em !important;
  border-radius: 0 6px 6px 0 !important;
}
.ai-notice {
  font-size: 0.85em !important;
  color: #888 !important;
  margin-top: 2em !important;
}

/* ===== ANIMATION ===== */
.fade-in {
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ===== PRINT ===== */
@media print {
  .site-header, .site-footer, .carousel-controls, .related-section { display: none; }
  .article-content { max-width: 100%; padding: 0; }
}