/* === IMPLANT COST COMPARISON GUIDE — DESIGN SYSTEM === */
@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable-dynamic-subset.min.css');

:root {
  --color-primary: #1B4F72;
  --color-primary-light: #2471A3;
  --color-primary-dark: #154360;
  --color-accent: #48C9B0;
  --color-accent-light: #76D7C4;
  --color-accent-dark: #1ABC9C;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F8FAFB;
  --color-bg-card: #FFFFFF;
  --color-text: #2C3E50;
  --color-text-light: #5D6D7E;
  --color-text-muted: #95A5A6;
  --color-border: #E8ECF0;
  --color-border-light: #F0F3F5;
  --color-success: #27AE60;
  --color-warning: #F39C12;
  --color-danger: #E74C3C;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --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);
  --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;
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --content-width: 780px;
  --wide-width: 1200px;
}

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

body {
  font-family: 'Pretendard Variable', Pretendard, -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
  font-size: 16.5px;
  line-height: 1.75;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  word-break: keep-all;
  overflow-wrap: break-word;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}
h1 { font-size: clamp(1.8rem, 4vw, 2.4rem); }
h2 { font-size: clamp(1.35rem, 3vw, 1.7rem); margin: var(--space-3xl) 0 var(--space-lg); padding-bottom: var(--space-sm); border-bottom: 2px solid var(--color-accent); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.3rem); margin: var(--space-2xl) 0 var(--space-md); color: var(--color-primary-light); }
p { margin-bottom: 1.2em; }

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

/* === SITE HEADER === */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
  padding: var(--space-md) var(--space-lg);
}
.site-header .header-inner {
  max-width: var(--wide-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.site-header .brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
}
.site-header .brand-icon {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
}
.site-header .brand-text {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}
.site-header .brand-sub {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  font-weight: 400;
}
.site-header nav { display: flex; align-items: center; gap: var(--space-lg); }
.site-header nav a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-text-light);
  transition: color var(--transition-fast);
  position: relative;
}
.site-header nav a:hover { color: var(--color-primary); }
.site-header nav a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}
.site-header nav a:hover::after { width: 100%; }
.mobile-menu-btn { display: none; background: none; border: none; cursor: pointer; padding: var(--space-sm); }
.mobile-menu-btn span { display: block; width: 22px; height: 2px; background: var(--color-text); margin: 5px 0; transition: var(--transition-fast); }

/* === SINGLE POST LAYOUT === */
.entry-content, .wp-block-post-content, article.post .entry-content {
  max-width: var(--content-width) !important;
  margin: 0 auto !important;
  padding: var(--space-2xl) var(--space-lg) !important;
}

/* Post title */
.entry-title, .wp-block-post-title {
  text-align: center;
  font-size: clamp(1.6rem, 3.5vw, 2.2rem) !important;
  color: var(--color-primary) !important;
  padding: var(--space-3xl) var(--space-lg) var(--space-lg);
  max-width: var(--content-width);
  margin: 0 auto !important;
}

/* Featured image */
.post-thumbnail img, .wp-post-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-2xl);
}

/* === TABLES — Premium styled === */
.entry-content table, table.implant-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin: var(--space-xl) 0;
  font-size: 0.92rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}
.entry-content table thead th, table.implant-table thead th {
  background: var(--color-primary);
  color: #fff;
  padding: 14px 16px;
  font-weight: 600;
  text-align: left;
  font-size: 0.88rem;
  letter-spacing: 0.01em;
}
.entry-content table tbody td, table.implant-table tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border-light);
  vertical-align: top;
}
.entry-content table tbody tr:last-child td { border-bottom: none; }
.entry-content table tbody tr:nth-child(even) { background: var(--color-bg-alt); }
.entry-content table tbody tr:hover { background: #EBF5FB; }

/* === CALLOUT / BLOCKQUOTE === */
.entry-content blockquote, blockquote.callout {
  background: linear-gradient(135deg, #EBF5FB, #E8F8F5);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-lg) var(--space-xl);
  margin: var(--space-xl) 0;
  font-size: 0.95rem;
  color: var(--color-primary-dark);
}
.entry-content blockquote p:last-child { margin-bottom: 0; }

/* === LISTS === */
.entry-content ul, .entry-content ol {
  padding-left: 1.6em;
  margin: var(--space-md) 0 var(--space-lg);
}
.entry-content li {
  margin-bottom: var(--space-sm);
  line-height: 1.7;
}
.entry-content ul li::marker { color: var(--color-accent); }
.entry-content ol li::marker { color: var(--color-primary); font-weight: 600; }

/* === INFO BOX === */
.info-box {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  margin: var(--space-xl) 0;
}
.info-box.highlight {
  background: linear-gradient(135deg, #E8F8F5, #D5F5E3);
  border-color: var(--color-accent-light);
}
.info-box.warning {
  background: #FEF9E7;
  border-color: #F9E79F;
}

/* === INLINE CHART (BAR) === */
.chart-bar-wrap {
  margin: var(--space-xl) 0;
  padding: var(--space-lg);
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}
.chart-bar-wrap h4 {
  font-size: 0.95rem;
  margin-bottom: var(--space-md);
  color: var(--color-primary);
}
.chart-bar-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-sm);
}
.chart-bar-label {
  min-width: 56px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--color-text-light);
  text-align: right;
}
.chart-bar-track {
  flex: 1;
  height: 28px;
  background: var(--color-border-light);
  border-radius: 14px;
  overflow: hidden;
  position: relative;
}
.chart-bar-fill {
  height: 100%;
  border-radius: 14px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 10px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #fff;
  min-width: 40px;
  transition: width 1s ease;
}

/* === STEP / TIMELINE === */
.step-list {
  list-style: none;
  padding: 0;
  margin: var(--space-xl) 0;
  counter-reset: step;
}
.step-list li {
  counter-increment: step;
  position: relative;
  padding-left: 52px;
  margin-bottom: var(--space-lg);
  min-height: 40px;
}
.step-list li::before {
  content: counter(step);
  position: absolute;
  left: 0; top: 0;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.step-list li::after {
  content: '';
  position: absolute;
  left: 17px;
  top: 40px;
  bottom: -var(--space-lg);
  width: 2px;
  background: var(--color-border);
}
.step-list li:last-child::after { display: none; }

/* === CARD GRID === */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-xl);
  margin: var(--space-2xl) 0;
}
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.card img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}
.card-body {
  padding: var(--space-lg);
}
.card-body h3 {
  font-size: 1.05rem;
  margin: 0 0 var(--space-sm);
  color: var(--color-primary);
}
.card-body p {
  font-size: 0.88rem;
  color: var(--color-text-light);
  line-height: 1.6;
}
.card-body .tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  background: #E8F8F5;
  color: var(--color-accent-dark);
  padding: 3px 10px;
  border-radius: 20px;
  margin-bottom: var(--space-sm);
}

/* === TOC === */
.toc-box {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  margin: var(--space-xl) 0;
}
.toc-box h4 {
  font-size: 0.9rem;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-border);
}
.toc-box ol { padding-left: 1.4em; }
.toc-box li {
  margin-bottom: var(--space-xs);
  font-size: 0.88rem;
}
.toc-box a { color: var(--color-text-light); }
.toc-box a:hover { color: var(--color-accent-dark); }

/* === LEGAL NOTICES === */
.legal-notice, .ai-notice {
  font-size: 0.85em !important;
  color: #777 !important;
}

/* === FOOTER === */
.site-footer {
  background: var(--color-primary-dark);
  color: #fff;
  padding: var(--space-3xl) var(--space-lg) var(--space-xl);
}
.site-footer .footer-inner {
  max-width: var(--wide-width);
  margin: 0 auto;
}
.site-footer .footer-brand {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}
.site-footer .footer-desc {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: var(--space-xl);
  max-width: 500px;
  line-height: 1.6;
}
.site-footer .footer-links {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
}
.site-footer .footer-links a {
  color: rgba(255,255,255,0.7);
  font-size: 0.85rem;
  transition: color var(--transition-fast);
}
.site-footer .footer-links a:hover { color: var(--color-accent-light); }
.site-footer .footer-legal {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.4);
  line-height: 1.7;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--space-lg);
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .site-header nav { display: none; }
  .site-header nav.active { display: flex; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: #fff; padding: var(--space-lg); border-bottom: 1px solid var(--color-border); box-shadow: var(--shadow-md); }
  .mobile-menu-btn { display: block; }
  .card-grid { grid-template-columns: 1fr; }
  .entry-content, .wp-block-post-content { padding: var(--space-lg) var(--space-md) !important; }
  h2 { font-size: 1.25rem; }
  .entry-content table { font-size: 0.82rem; display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .chart-bar-label { min-width: 40px; font-size: 0.75rem; }
}

@media (max-width: 480px) {
  body { font-size: 15.5px; }
  .entry-content, .wp-block-post-content { padding: var(--space-md) !important; }
}

/* === ANIMATION (reduced motion respected) === */
@media (prefers-reduced-motion: no-preference) {
  .fade-in { opacity: 0; transform: translateY(16px); transition: opacity 0.5s ease, transform 0.5s ease; }
  .fade-in.visible { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
  .fade-in { opacity: 1 !important; transform: none !important; }
}

/* === WP OVERRIDES (remove default theme chrome) === */
body .is-layout-constrained > :where(:not(.alignleft):not(.alignright):not(.alignfull)) { max-width: var(--content-width) !important; }
.wp-site-blocks { padding: 0 !important; }
.wp-block-template-part, .has-global-padding { padding: 0 !important; }
.wp-block-navigation, .wp-block-site-title, .wp-block-site-tagline { display: none !important; }
footer.wp-block-template-part { display: none !important; }
header.wp-block-template-part { display: none !important; }
.wp-block-post-date, .wp-block-post-author, .wp-block-post-terms { display: none !important; }