/* ===== Blog Article Styles ===== */
.blog-article {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px 60px;
  font-family: 'Pretendard Variable', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--km-text);
  line-height: 1.85;
  font-size: 16px;
}

/* Hero Section */
.blog-hero {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  margin: 24px 0 32px;
  padding: 60px 32px;
  text-align: center;
  color: #fff;
}
.blog-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(99,102,241,0.92), rgba(6,182,212,0.88));
  z-index: 1;
}
.blog-hero-content {
  position: relative;
  z-index: 2;
}
.blog-hero h1 {
  font-size: 28px;
  font-weight: 800;
  margin: 0 0 12px;
  line-height: 1.4;
  word-break: keep-all;
}
.blog-hero .blog-hero-sub {
  font-size: 15px;
  opacity: 0.9;
  font-weight: 400;
  line-height: 1.6;
}
.blog-hero .blog-hero-badge {
  display: inline-block;
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(4px);
  border-radius: 20px;
  padding: 4px 14px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

/* Breadcrumb */
.blog-breadcrumb {
  font-size: 13px;
  color: var(--km-text-muted);
  margin: 20px 0 0;
}
.blog-breadcrumb a {
  color: var(--km-primary);
  text-decoration: none;
}
.blog-breadcrumb a:hover {
  text-decoration: underline;
}
.blog-breadcrumb span {
  margin: 0 6px;
  color: var(--km-border);
}

/* Article Body */
.blog-body h2 {
  font-size: 22px;
  font-weight: 800;
  margin: 48px 0 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--km-primary);
  color: var(--km-text);
  line-height: 1.4;
}
.blog-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 32px 0 12px;
  color: var(--km-text);
  padding-left: 12px;
  border-left: 3px solid var(--km-accent);
}
.blog-body p {
  margin: 0 0 18px;
  word-break: keep-all;
}
.blog-body strong {
  color: var(--km-primary);
  font-weight: 700;
}
.blog-body a {
  color: var(--km-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Tip / Info Box */
.blog-tip {
  background: linear-gradient(135deg, rgba(99,102,241,0.06), rgba(6,182,212,0.06));
  border: 1px solid rgba(99,102,241,0.15);
  border-radius: 12px;
  padding: 20px 24px;
  margin: 24px 0;
  font-size: 14px;
  line-height: 1.8;
}
.blog-tip-title {
  font-weight: 800;
  font-size: 15px;
  color: var(--km-primary);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.blog-warning {
  background: linear-gradient(135deg, rgba(245,158,11,0.06), rgba(239,68,68,0.04));
  border: 1px solid rgba(245,158,11,0.2);
  border-radius: 12px;
  padding: 20px 24px;
  margin: 24px 0;
  font-size: 14px;
}

/* Ordered / Unordered List */
.blog-body ul, .blog-body ol {
  margin: 0 0 20px;
  padding-left: 24px;
}
.blog-body li {
  margin-bottom: 8px;
  line-height: 1.7;
}
.blog-body li::marker {
  color: var(--km-primary);
  font-weight: 700;
}

/* Step-by-step */
.blog-steps {
  counter-reset: step;
  list-style: none;
  padding-left: 0;
  margin: 24px 0;
}
.blog-steps li {
  counter-increment: step;
  position: relative;
  padding: 16px 20px 16px 56px;
  margin-bottom: 12px;
  background: var(--km-surface);
  border: 1px solid var(--km-border);
  border-radius: 12px;
  transition: box-shadow 0.2s;
}
.blog-steps li:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}
.blog-steps li::before {
  content: counter(step);
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--km-primary), var(--km-accent));
  color: #fff;
  font-weight: 800;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Table */
.blog-table-wrap {
  overflow-x: auto;
  margin: 24px 0;
  border-radius: 12px;
  border: 1px solid var(--km-border);
}
.blog-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.blog-table thead {
  background: linear-gradient(135deg, var(--km-primary), var(--km-accent));
  color: #fff;
}
.blog-table th {
  padding: 12px 16px;
  font-weight: 700;
  text-align: left;
  white-space: nowrap;
}
.blog-table td {
  padding: 12px 16px;
  border-top: 1px solid var(--km-border);
}
.blog-table tbody tr:hover {
  background: var(--km-surface2);
}

/* Quote */
.blog-quote {
  border-left: 4px solid var(--km-primary);
  padding: 16px 20px;
  margin: 24px 0;
  background: var(--km-surface2);
  border-radius: 0 12px 12px 0;
  font-size: 15px;
  font-style: italic;
  color: var(--km-text-secondary);
}

/* CTA Button */
.blog-cta {
  text-align: center;
  margin: 48px 0 24px;
  padding: 32px;
  background: linear-gradient(135deg, rgba(99,102,241,0.05), rgba(6,182,212,0.05));
  border-radius: 16px;
  border: 1px solid rgba(99,102,241,0.12);
}
.blog-cta-btn {
  display: inline-block;
  padding: 14px 40px;
  background: linear-gradient(135deg, #6366f1, #06b6d4);
  color: #fff !important;
  font-size: 16px;
  font-weight: 800;
  border-radius: 12px;
  text-decoration: none !important;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 15px rgba(99,102,241,0.3);
}
.blog-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99,102,241,0.4);
}
.blog-cta-desc {
  font-size: 13px;
  color: var(--km-text-muted);
  margin-top: 12px;
}

/* Tags */
.blog-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 32px 0 16px;
}
.blog-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--km-surface2);
  border: 1px solid var(--km-border);
  border-radius: 20px;
  font-size: 12px;
  color: var(--km-text-secondary);
}

/* Date & Meta */
.blog-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--km-text-muted);
  margin: 16px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--km-border);
}

/* Related Articles */
.blog-related {
  margin: 48px 0 0;
  padding: 24px;
  background: var(--km-surface);
  border-radius: 16px;
  border: 1px solid var(--km-border);
}
.blog-related-title {
  font-size: 16px;
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--km-text);
}
.blog-related-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.blog-related-list li {
  margin-bottom: 0;
}
.blog-related-list a {
  display: block;
  padding: 10px 0;
  border-bottom: 1px solid var(--km-border-light, var(--km-border));
  color: var(--km-text);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.15s;
}
.blog-related-list a:hover {
  color: var(--km-primary);
}
.blog-related-list li:last-child a {
  border-bottom: none;
}

/* Category Page */
.blog-category {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px 60px;
}
.blog-category-hero {
  text-align: center;
  padding: 48px 20px;
  margin: 24px 0 32px;
  border-radius: 16px;
  background: linear-gradient(135deg, #6366f1, #06b6d4);
  color: #fff;
}
.blog-category-hero h1 {
  font-size: 28px;
  font-weight: 800;
  margin: 0 0 8px;
}
.blog-category-hero p {
  font-size: 15px;
  opacity: 0.9;
  margin: 0;
}
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 24px;
}
.blog-card {
  background: var(--km-surface);
  border: 1px solid var(--km-border);
  border-radius: 16px;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
  text-decoration: none !important;
  color: var(--km-text) !important;
  display: flex;
  flex-direction: column;
}
.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}
.blog-card-thumb {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  color: #fff;
}
.blog-card-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.blog-card-num {
  font-size: 11px;
  font-weight: 700;
  color: var(--km-accent);
  margin-bottom: 6px;
  letter-spacing: 1px;
}
.blog-card-title {
  font-size: 16px;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 8px;
  word-break: keep-all;
}
.blog-card-desc {
  font-size: 13px;
  color: var(--km-text-secondary);
  line-height: 1.6;
  flex: 1;
}
.blog-card-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--km-border);
  font-size: 12px;
  color: var(--km-text-muted);
  display: flex;
  justify-content: space-between;
}

/* Responsive */
@media (max-width: 640px) {
  .blog-article {
    padding: 0 16px 48px;
  }
  .blog-hero {
    padding: 40px 20px;
    margin: 16px 0 24px;
  }
  .blog-hero h1 {
    font-size: 22px;
  }
  .blog-body h2 {
    font-size: 19px;
    margin-top: 36px;
  }
  .blog-body h3 {
    font-size: 16px;
  }
  .blog-grid {
    grid-template-columns: 1fr;
  }
  .blog-steps li {
    padding-left: 48px;
  }
}

/* Image placeholder for hero backgrounds */
.blog-hero-bg-1  { background: linear-gradient(135deg, #6366f1 0%, #3b82f6 50%, #06b6d4 100%); }
.blog-hero-bg-2  { background: linear-gradient(135deg, #8b5cf6 0%, #6366f1 50%, #3b82f6 100%); }
.blog-hero-bg-3  { background: linear-gradient(135deg, #06b6d4 0%, #3b82f6 50%, #6366f1 100%); }
.blog-hero-bg-4  { background: linear-gradient(135deg, #10b981 0%, #06b6d4 50%, #3b82f6 100%); }
.blog-hero-bg-5  { background: linear-gradient(135deg, #f59e0b 0%, #ef4444 50%, #ec4899 100%); }
.blog-hero-bg-6  { background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 50%, #ec4899 100%); }
.blog-hero-bg-7  { background: linear-gradient(135deg, #10b981 0%, #34d399 50%, #06b6d4 100%); }
.blog-hero-bg-8  { background: linear-gradient(135deg, #6366f1 0%, #ec4899 50%, #f43f5e 100%); }
.blog-hero-bg-9  { background: linear-gradient(135deg, #f59e0b 0%, #06b6d4 50%, #6366f1 100%); }
.blog-hero-bg-10 { background: linear-gradient(135deg, #8b5cf6 0%, #06b6d4 50%, #10b981 100%); }

/* Card thumbnail backgrounds */
.blog-thumb-1  { background: linear-gradient(135deg, #6366f1, #3b82f6); }
.blog-thumb-2  { background: linear-gradient(135deg, #8b5cf6, #6366f1); }
.blog-thumb-3  { background: linear-gradient(135deg, #06b6d4, #3b82f6); }
.blog-thumb-4  { background: linear-gradient(135deg, #10b981, #06b6d4); }
.blog-thumb-5  { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.blog-thumb-6  { background: linear-gradient(135deg, #3b82f6, #8b5cf6); }
.blog-thumb-7  { background: linear-gradient(135deg, #10b981, #34d399); }
.blog-thumb-8  { background: linear-gradient(135deg, #6366f1, #ec4899); }
.blog-thumb-9  { background: linear-gradient(135deg, #f59e0b, #06b6d4); }
.blog-thumb-10 { background: linear-gradient(135deg, #8b5cf6, #10b981); }

/* Hero & Thumb backgrounds 11-20 */
.blog-hero-bg-11 { background: linear-gradient(135deg, #0ea5e9 0%, #6366f1 50%, #a855f7 100%); }
.blog-hero-bg-12 { background: linear-gradient(135deg, #ef4444 0%, #f97316 50%, #eab308 100%); }
.blog-hero-bg-13 { background: linear-gradient(135deg, #14b8a6 0%, #0ea5e9 50%, #6366f1 100%); }
.blog-hero-bg-14 { background: linear-gradient(135deg, #f97316 0%, #ef4444 50%, #a855f7 100%); }
.blog-hero-bg-15 { background: linear-gradient(135deg, #22c55e 0%, #14b8a6 50%, #0ea5e9 100%); }
.blog-hero-bg-16 { background: linear-gradient(135deg, #a855f7 0%, #ec4899 50%, #f43f5e 100%); }
.blog-hero-bg-17 { background: linear-gradient(135deg, #0ea5e9 0%, #22c55e 50%, #eab308 100%); }
.blog-hero-bg-18 { background: linear-gradient(135deg, #eab308 0%, #f97316 50%, #ef4444 100%); }
.blog-hero-bg-19 { background: linear-gradient(135deg, #6366f1 0%, #0ea5e9 50%, #14b8a6 100%); }
.blog-hero-bg-20 { background: linear-gradient(135deg, #ec4899 0%, #a855f7 50%, #6366f1 100%); }

.blog-thumb-11 { background: linear-gradient(135deg, #0ea5e9, #a855f7); }
.blog-thumb-12 { background: linear-gradient(135deg, #ef4444, #eab308); }
.blog-thumb-13 { background: linear-gradient(135deg, #14b8a6, #6366f1); }
.blog-thumb-14 { background: linear-gradient(135deg, #f97316, #a855f7); }
.blog-thumb-15 { background: linear-gradient(135deg, #22c55e, #0ea5e9); }
.blog-thumb-16 { background: linear-gradient(135deg, #a855f7, #f43f5e); }
.blog-thumb-17 { background: linear-gradient(135deg, #0ea5e9, #eab308); }
.blog-thumb-18 { background: linear-gradient(135deg, #eab308, #ef4444); }
.blog-thumb-19 { background: linear-gradient(135deg, #6366f1, #14b8a6); }
.blog-thumb-20 { background: linear-gradient(135deg, #ec4899, #6366f1); }