/* ===== 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;
}

/* ===== NEW Category Page (km-blog) ===== */
.km-blog { max-width:1080px; margin:0 auto; padding:0 20px 60px; }

/* Hero */
.km-blog-hero {
  margin:20px 0 32px;
  border-radius:20px;
  background:var(--km-surface, #fff);
  border:1px solid var(--km-border, #e2e8f0);
  overflow:hidden;
}
.km-blog-hero-inner {
  display:flex; align-items:center; gap:40px;
  padding:48px 40px;
  background:
    radial-gradient(ellipse at 10% 80%, rgba(99,102,241,.07) 0%, transparent 50%),
    radial-gradient(ellipse at 90% 20%, rgba(6,182,212,.06) 0%, transparent 50%);
}
.km-blog-hero-text { flex:1; }
.km-blog-hero-label {
  font-size:11px; font-weight:700; letter-spacing:2px;
  color:var(--km-primary, #6366f1);
  margin:0 0 12px; text-transform:uppercase;
}
.km-blog-hero h1 {
  font-size:32px; font-weight:900; line-height:1.35;
  color:var(--km-text, #1e293b); margin:0 0 14px; word-break:keep-all;
}
.km-blog-hero-desc {
  font-size:15px; line-height:1.7;
  color:var(--km-text-secondary, #64748b); margin:0;
}
.km-blog-hero-desc strong { color:var(--km-primary, #6366f1); }
.km-blog-hero-stats {
  display:flex; gap:24px; flex-shrink:0;
}
.km-blog-stat {
  display:flex; flex-direction:column; align-items:center;
  padding:16px 20px; border-radius:14px;
  background:var(--km-surface2, #f8f9fa);
  border:1px solid var(--km-border, #e2e8f0);
  min-width:80px;
}
.km-blog-stat-num { font-size:28px; font-weight:900; color:var(--km-text, #1e293b); line-height:1; }
.km-blog-stat-label { font-size:11px; font-weight:600; color:var(--km-text-muted, #94a3b8); margin-top:4px; }

/* Search */
.km-blog-search {
  display:flex; align-items:center; gap:10px;
  padding:12px 18px; border-radius:12px;
  background:var(--km-surface, #fff);
  border:1px solid var(--km-border, #e2e8f0);
  margin-bottom:28px; transition:border-color .2s;
  color:var(--km-text-muted, #94a3b8);
}
.km-blog-search:focus-within { border-color:var(--km-primary, #6366f1); }
.km-blog-search input {
  flex:1; border:none; outline:none; background:transparent;
  font-size:14px; color:var(--km-text, #1e293b); font-family:inherit;
}
.km-blog-search input::placeholder { color:var(--km-text-muted, #94a3b8); }

/* Section */
.km-blog-section { margin-bottom:32px; }
.km-blog-section-title {
  display:flex; align-items:center; gap:8px;
  font-size:16px; font-weight:800; color:var(--km-text, #1e293b);
  margin:0 0 16px;
}
.km-blog-section-title svg { color:var(--km-primary, #6366f1); }

/* Popular cards */
.km-blog-popular { display:flex; flex-direction:column; gap:8px; }
.km-blog-pop-card {
  display:flex; align-items:center; gap:16px;
  padding:14px 18px; border-radius:12px;
  background:var(--km-surface, #fff);
  border:1px solid var(--km-border, #e2e8f0);
  text-decoration:none !important; color:var(--km-text, #1e293b) !important;
  transition:all .18s;
}
.km-blog-pop-card:hover {
  border-color:var(--km-primary, #6366f1);
  box-shadow:0 2px 12px rgba(99,102,241,.1);
  transform:translateX(4px);
}
.km-blog-pop-icon {
  width:44px; height:44px; border-radius:12px; flex-shrink:0;
  display:flex; align-items:center; justify-content:center;
  background:hsl(var(--hue,230) 70% 95%);
  color:hsl(var(--hue,230) 60% 50%);
}
.km-blog-pop-text { flex:1; display:flex; flex-direction:column; gap:2px; min-width:0; }
.km-blog-pop-text strong { font-size:14px; font-weight:700; }
.km-blog-pop-text span { font-size:12px; color:var(--km-text-muted, #94a3b8); white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.km-blog-pop-arrow { color:var(--km-text-muted, #94a3b8); flex-shrink:0; transition:transform .2s; }
.km-blog-pop-card:hover .km-blog-pop-arrow { transform:translateX(3px); color:var(--km-primary, #6366f1); }

/* Tabs */
.km-blog-tabs {
  display:flex; gap:6px; flex-wrap:wrap;
  margin-bottom:20px; padding-bottom:16px;
  border-bottom:1px solid var(--km-border, #e2e8f0);
}
.km-blog-tab {
  padding:7px 16px; border-radius:8px; border:1px solid transparent;
  background:transparent; color:var(--km-text-secondary, #64748b);
  font-size:13px; font-weight:600; cursor:pointer;
  font-family:inherit; transition:all .15s;
}
.km-blog-tab:hover { background:var(--km-surface2, #f8f9fa); }
.km-blog-tab.active {
  background:var(--km-primary, #6366f1); color:#fff;
  border-color:var(--km-primary, #6366f1);
}

/* Grid */
.km-blog-grid {
  display:grid; grid-template-columns:repeat(auto-fill, minmax(240px, 1fr)); gap:16px;
}
.km-blog-item {
  background:var(--km-surface, #fff);
  border:1px solid var(--km-border, #e2e8f0);
  border-radius:14px; overflow:hidden;
  text-decoration:none !important; color:var(--km-text, #1e293b) !important;
  display:flex; flex-direction:column;
  transition:all .2s;
}
.km-blog-item:hover {
  border-color:var(--km-primary, #6366f1);
  box-shadow:0 8px 28px rgba(99,102,241,.1);
  transform:translateY(-3px);
}

/* Item head */
.km-blog-item-head {
  display:flex; align-items:center; justify-content:space-between;
  padding:20px 20px 0;
  color:hsl(var(--hue,230) 55% 50%);
}
.km-blog-item-num {
  font-size:11px; font-weight:800; letter-spacing:1px;
  color:var(--km-text-muted, #94a3b8);
}

/* Item body */
.km-blog-item-body { padding:14px 20px 0; flex:1; }
.km-blog-item-tag {
  display:inline-block; padding:3px 10px; border-radius:6px;
  font-size:11px; font-weight:600;
  background:hsl(var(--hue,230) 70% 95%);
  color:hsl(var(--hue,230) 55% 45%);
  margin-bottom:8px;
}
.km-blog-item-body h3 {
  font-size:15px; font-weight:800; line-height:1.4;
  margin:0 0 6px; word-break:keep-all;
  color:var(--km-text, #1e293b);
}
.km-blog-item-body p {
  font-size:12.5px; line-height:1.6; margin:0;
  color:var(--km-text-secondary, #64748b);
  display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden;
}

/* Item foot */
.km-blog-item-foot {
  display:flex; justify-content:space-between; align-items:center;
  padding:12px 20px; margin-top:auto;
  border-top:1px solid var(--km-border-light, rgba(0,0,0,.04));
  font-size:11px; color:var(--km-text-muted, #94a3b8);
}
.km-blog-item-arrow {
  font-weight:700; color:var(--km-primary, #6366f1);
  opacity:0; transition:opacity .2s;
}
.km-blog-item:hover .km-blog-item-arrow { opacity:1; }

/* Empty */
.km-blog-empty {
  text-align:center; padding:60px 20px;
  color:var(--km-text-muted, #94a3b8); font-size:15px;
}

/* CTA */
.km-blog-cta {
  text-align:center; margin-top:48px; padding:36px 20px;
  border-radius:16px;
  background:var(--km-surface, #fff);
  border:1px solid var(--km-border, #e2e8f0);
}
.km-blog-cta p {
  font-size:15px; color:var(--km-text-secondary, #64748b);
  margin:0 0 14px; font-weight:500;
}
.km-blog-cta a {
  display:inline-block; padding:12px 32px; border-radius:10px;
  background:var(--km-primary, #6366f1); color:#fff !important;
  font-size:14px; font-weight:700; text-decoration:none !important;
  transition:all .15s;
}
.km-blog-cta a:hover { opacity:.9; transform:translateY(-1px); }

/* Old category classes - keep for backwards compat but hidden */
.blog-category { display:none; }

/* 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-steps li {
    padding-left: 48px;
  }
}

/* km-blog responsive */
@media (max-width: 768px) {
  .km-blog-hero-inner { flex-direction:column; gap:24px; padding:32px 24px; }
  .km-blog-hero h1 { font-size:24px; }
  .km-blog-hero-desc br { display:none; }
  .km-blog-hero-stats { gap:12px; }
  .km-blog-stat { padding:12px 16px; min-width:70px; }
  .km-blog-stat-num { font-size:22px; }
  .km-blog-grid { grid-template-columns:1fr; }
  .km-blog-tabs { gap:4px; }
  .km-blog-tab { padding:6px 12px; font-size:12px; }
}

/* 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-hero-bg-21 { background: linear-gradient(135deg, #f59e0b 0%, #d97706 45%, #7c2d12 100%); }
.blog-hero-bg-22 { background: linear-gradient(135deg, #eab308 0%, #f97316 50%, #16a34a 100%); }
.blog-hero-bg-23 { background: linear-gradient(135deg, #0ea5e9 0%, #6366f1 50%, #8b5cf6 100%); }
.blog-hero-bg-24 { background: linear-gradient(135deg, #14b8a6 0%, #0ea5e9 50%, #6366f1 100%); }
.blog-hero-bg-25 { background: linear-gradient(135deg, #ef4444 0%, #f43f5e 50%, #ec4899 100%); }
.blog-hero-bg-26 { background: linear-gradient(135deg, #8b5cf6 0%, #6366f1 50%, #0ea5e9 100%); }
.blog-hero-bg-27 { background: linear-gradient(135deg, #22c55e 0%, #14b8a6 50%, #0ea5e9 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); }