:root {
  --background: #F8FAFC;
  --foreground: #0F172A;
  --surface: #FFFFFF;
  --border: #E2E8F0;
  --accent: #2563EB;
  --accent-hover: #1D4ED8;
  --text-secondary: #64748B;
  --text-tertiary: #94A3B8;
  --success: #16A34A;
}

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

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--background);
  color: var(--foreground);
  line-height: 1.7;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.blog-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
}

.blog-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo,
.logo:hover,
.logo:focus,
.logo:active {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--foreground);
  text-decoration: none !important;
}

.logo span { color: var(--accent); }

.blog-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.9375rem;
}

.blog-nav a:not(.btn-primary) { color: var(--text-secondary); text-decoration: none; }
.blog-nav a:not(.btn-primary):hover { color: var(--accent); }

.btn-primary,
a.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--accent);
  color: #fff !important;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  border: none;
  text-decoration: none !important;
  transition: background 0.2s;
}

.btn-primary:hover,
a.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff !important;
  text-decoration: none !important;
}

.blog-hero {
  padding: 3rem 0 2rem;
}

.blog-hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  line-height: 1.2;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
}

.blog-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.blog-cover-wrap,
.blog-figure-frame,
.blog-card-media {
  background: #F1F5F9;
  border: 1px solid var(--border);
  border-radius: 1rem;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.blog-cover-wrap {
  box-shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
  margin-bottom: 2rem;
}

.blog-cover,
.blog-figure img,
.blog-card img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 480px;
  object-fit: contain;
  object-position: center;
}

.blog-figure-frame {
  border-radius: 0.75rem;
}

.blog-figure img {
  max-height: 520px;
  border: none;
  border-radius: 0;
}

.blog-content {
  max-width: 760px;
  margin: 0 auto;
  padding-bottom: 4rem;
}

.blog-content h2 {
  font-size: 1.375rem;
  margin: 2.5rem 0 1rem;
  letter-spacing: -0.01em;
}

.blog-content p,
.blog-content li {
  color: var(--text-secondary);
  font-size: 1.0625rem;
}

.blog-content ul,
.blog-content ol {
  padding-left: 1.25rem;
  margin: 1rem 0;
}

.blog-content li { margin-bottom: 0.5rem; }

.blog-figure {
  margin: 2rem 0;
}

.blog-figure figcaption {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin-top: 0.75rem;
  text-align: center;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9375rem;
}

.compare-table th,
.compare-table td {
  border: 1px solid var(--border);
  padding: 0.75rem 1rem;
  text-align: left;
}

.compare-table th {
  background: var(--surface);
  font-weight: 600;
}

.compare-table td { color: var(--text-secondary); }

.cta-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 2rem;
  text-align: center;
  margin: 3rem 0;
  box-shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
}

.cta-box h3 {
  margin: 0 0 0.75rem;
  font-size: 1.25rem;
}

.cta-box p {
  margin: 0 0 1.5rem;
  color: var(--text-secondary);
}

.breadcrumb {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin-bottom: 1rem;
}

.breadcrumb a { color: var(--text-secondary); }

.blog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding: 2rem 0 4rem;
}

@media (min-width: 768px) {
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
}

.blog-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  overflow: hidden;
  transition: box-shadow 0.2s, transform 0.2s;
  text-decoration: none;
  color: inherit;
  display: block;
}

.blog-card:hover {
  box-shadow: 0 8px 32px rgba(15, 23, 42, 0.1);
  transform: translateY(-2px);
  text-decoration: none;
}

.blog-card-media {
  border-radius: 0;
  border: none;
  border-bottom: 1px solid var(--border);
  min-height: 200px;
  max-height: 280px;
}

.blog-card img {
  max-height: 280px;
}

.blog-card-body {
  padding: 1.5rem;
}

.blog-card-body h2 {
  font-size: 1.125rem;
  margin: 0 0 0.5rem;
  color: var(--foreground);
}

.blog-card-body p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin: 0 0 0.75rem;
}

.blog-card-body span {
  font-size: 0.8125rem;
  color: var(--accent);
  font-weight: 600;
}

.blog-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-secondary);
}