/* Theme 4 - Minimalist Style */

/* Typography - Fine & Clean */
body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.8;
  color: #333;
  font-weight: 300;
  background: #fafafa;
}

h1, h2, h3, h4, h5, h6 {
  font-family: "Crimson Text", Georgia, serif;
  font-weight: 400;
  color: #1a1a1a;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

.blog-header-logo {
  font-family: "Inter", sans-serif;
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #666;
}

/* Minimalist Color Scheme */
:root {
  --minimal-primary: #000;
  --minimal-secondary: #666;
  --minimal-accent: #999;
  --minimal-bg: #fafafa;
  --minimal-border: #e0e0e0;
}

/* Header - Ultra Minimal */
.header-theme4 {
  background: white;
  border-bottom: 1px solid var(--minimal-border);
  padding: 3rem 0;
}

.header-theme4 .blog-header-logo {
  color: var(--minimal-primary);
  text-decoration: none;
}

.header-theme4 .nav-link {
  color: var(--minimal-secondary);
  font-weight: 300;
  font-size: 0.9rem;
  padding: 0.5rem 1.5rem;
  text-decoration: none;
  transition: color 0.2s ease;
}

.header-theme4 .nav-link:hover {
  color: var(--minimal-primary);
}

/* Main Content - Centered & Spacious */
.theme-4 {
  max-width: 1200px;
  padding: 4rem 2rem;
}

.minimal-hero {
  text-align: center;
  padding: 6rem 0 4rem;
  margin-bottom: 4rem;
}

.minimal-hero h1 {
  font-size: 3rem;
  font-weight: 400;
  margin-bottom: 1.5rem;
  color: var(--minimal-primary);
}

.minimal-hero .lead {
  font-size: 1.2rem;
  font-weight: 300;
  color: var(--minimal-secondary);
  line-height: 1.8;
  max-width: 600px;
  margin: 0 auto 2rem;
}

.minimal-hero img {
  width: 100%;
  max-width: 800px;
  margin: 2rem auto;
  display: block;
}

/* Article List - Clean & Spacious */
.minimal-article {
  padding: 4rem 0;
  border-bottom: 1px solid var(--minimal-border);
}

.minimal-article:last-child {
  border-bottom: none;
}

.minimal-article h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.minimal-article h2 a {
  color: var(--minimal-primary);
  text-decoration: none;
}

.minimal-article h2 a:hover {
  color: var(--minimal-secondary);
}

.minimal-article .article-meta {
  font-size: 0.85rem;
  color: var(--minimal-accent);
  margin-bottom: 1.5rem;
  font-weight: 300;
}

.minimal-article .article-excerpt {
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--minimal-secondary);
  margin-bottom: 1.5rem;
  font-weight: 300;
}

.minimal-article .read-more {
  color: var(--minimal-primary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 400;
  border-bottom: 1px solid var(--minimal-primary);
  padding-bottom: 2px;
}

.minimal-article .read-more:hover {
  border-bottom-color: transparent;
}

.minimal-article img {
  width: 100%;
  margin: 2rem 0;
  opacity: 0.9;
}

/* Featured Section - Minimal Grid */
.minimal-featured {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 3rem;
  margin-bottom: 6rem;
  padding: 3rem 0;
}

.minimal-card {
  background: white;
  padding: 2rem;
  border: 1px solid var(--minimal-border);
  transition: border-color 0.3s ease;
}

.minimal-card:hover {
  border-color: var(--minimal-primary);
}

.minimal-card img {
  width: 100%;
  margin-bottom: 1.5rem;
  opacity: 0.95;
}

.minimal-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.minimal-card h3 a {
  color: var(--minimal-primary);
  text-decoration: none;
}

.minimal-card .excerpt {
  font-size: 0.95rem;
  color: var(--minimal-secondary);
  line-height: 1.7;
  margin-bottom: 1rem;
  font-weight: 300;
}

.minimal-card .meta {
  font-size: 0.8rem;
  color: var(--minimal-accent);
  font-weight: 300;
}

/* Aside - Minimal Sidebar */
.theme-4 aside {
  background: white;
  padding: 2rem;
  border: 1px solid var(--minimal-border);
}

.theme-4 aside h4 {
  font-size: 1rem;
  font-weight: 400;
  color: var(--minimal-primary);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-family: "Inter", sans-serif;
}

.theme-4 aside .list-unstyled li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--minimal-border);
}

.theme-4 aside .list-unstyled li:last-child {
  border-bottom: none;
}

.theme-4 aside a {
  color: var(--minimal-secondary);
  text-decoration: none;
  font-weight: 300;
}

.theme-4 aside a:hover {
  color: var(--minimal-primary);
}

/* Footer - Minimal */
footer {
  background: white;
  border-top: 1px solid var(--minimal-border);
  padding: 3rem 0;
  margin-top: 6rem;
  text-align: center;
}

footer a {
  color: var(--minimal-secondary);
  text-decoration: none;
  font-weight: 300;
  margin: 0 1rem;
}

footer a:hover {
  color: var(--minimal-primary);
}

footer p {
  color: var(--minimal-accent);
  font-size: 0.85rem;
  font-weight: 300;
  margin-top: 1rem;
}

/* Buttons - Minimal */
.btn {
  border-radius: 0;
  font-weight: 300;
  padding: 0.75rem 2rem;
  border: 1px solid var(--minimal-primary);
  background: transparent;
  color: var(--minimal-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.85rem;
}

.btn:hover {
  background: var(--minimal-primary);
  color: white;
}

.btn-primary {
  background: var(--minimal-primary);
  color: white;
}

.btn-primary:hover {
  background: var(--minimal-secondary);
  border-color: var(--minimal-secondary);
}

/* Pagination */
.blog-pagination {
  margin: 4rem 0;
  text-align: center;
}

/* Post Page */
.post-header-minimal {
  text-align: center;
  padding: 4rem 0;
  border-bottom: 1px solid var(--minimal-border);
  margin-bottom: 4rem;
}

.post-header-minimal .category-tag {
  display: inline-block;
  color: var(--minimal-accent);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  font-weight: 300;
}

.post-header-minimal h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.post-header-minimal .post-meta {
  font-size: 0.9rem;
  color: var(--minimal-accent);
  font-weight: 300;
}

.post-content-minimal {
  font-size: 1.1rem;
  line-height: 1.9;
  max-width: 700px;
  margin: 0 auto;
  color: #444;
  font-weight: 300;
}

.post-content-minimal img {
  width: 100%;
  margin: 3rem 0;
}

/* Category Page */
.category-header-minimal {
  text-align: center;
  padding: 4rem 0;
  border-bottom: 1px solid var(--minimal-border);
  margin-bottom: 4rem;
}

.category-header-minimal h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.category-header-minimal p {
  color: var(--minimal-accent);
  font-weight: 300;
}

/* Responsive */
@media (max-width: 768px) {
  .blog-header-logo {
    font-size: 1.25rem;
  }
  
  .minimal-hero h1 {
    font-size: 2rem;
  }
  
  .minimal-featured {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  
  .theme-4 {
    padding: 2rem 1rem;
  }
}