/* Base CSS - Responsive Design */

:root {
  --primary: #C41E3A;
  --dark: #333;
  --light: #f5f5f5;
  --border: #ddd;
  --text: #333;
  --spacing: 1rem;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
  color: var(--text);
}

/* LAYOUT */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing);
}

/* HEADER */
.site-header {
  background: #fff;
  border-bottom: 2px solid var(--primary);
  padding: var(--spacing) 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary);
  text-decoration: none;
}

.nav-main ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 2rem;
}

.nav-main a {
  text-decoration: none;
  color: var(--text);
  font-weight: 500;
  transition: color 0.2s;
}

.nav-main a:hover {
  color: var(--primary);
}

/* FEATURED SECTION */
.featured-section {
  margin: 2rem 0;
}

.featured-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.featured-image {
  width: 100%;
  height: auto;
  display: block;
  margin-bottom: 1rem;
}

.featured-content h1 {
  font-size: 2rem;
  margin: 0 0 0.5rem 0;
  color: var(--dark);
}

.featured-content .subhead {
  font-size: 1.1rem;
  color: #666;
  margin: 0;
}

/* GRID LAYOUTS */
.content-grid {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 2rem;
  margin: 2rem 0;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 1.5rem 0;
}

.article-card {
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  transition: box-shadow 0.2s;
}

.article-card:hover {
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.card-image {
  display: block;
  overflow: hidden;
  height: 200px;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-content {
  padding: 1rem;
}

.card-content h3 {
  margin: 0 0 0.5rem 0;
  font-size: 1rem;
}

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

.card-content p {
  margin: 0.5rem 0;
  font-size: 0.9rem;
  color: #666;
}

/* SIDEBAR */
.sidebar {
  position: sticky;
  top: 80px;
  height: fit-content;
}

.sidebar section {
  background: var(--light);
  padding: 1rem;
  margin-bottom: 1rem;
  border-radius: 4px;
}

.sidebar h3 {
  margin-top: 0;
  color: var(--primary);
}

.sidebar ol, .sidebar ul {
  margin: 0;
  padding-left: 1.5rem;
}

.sidebar li {
  margin-bottom: 0.5rem;
}

.sidebar a {
  text-decoration: none;
  color: var(--primary);
}

/* AD SPACES */
.ad-space {
  background: var(--light);
  border: 2px dashed var(--border);
  padding: 2rem;
  text-align: center;
  color: #999;
  margin: 2rem 0;
  border-radius: 4px;
}

/* FOOTER */
.site-footer {
  background: var(--dark);
  color: #fff;
  padding: 2rem 0;
  margin-top: 4rem;
  text-align: center;
}

.site-footer a {
  color: var(--primary);
  text-decoration: none;
  margin: 0 1rem;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .nav-main ul {
    gap: 1rem;
    font-size: 0.9rem;
  }

  .featured-content h1 {
    font-size: 1.5rem;
  }

  .content-grid {
    grid-template-columns: 1fr;
  }

  .article-grid {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

  .card-image {
    height: 150px;
  }
}

@media (max-width: 600px) {
  .header-top {
    flex-direction: column;
    gap: 1rem;
  }

  .nav-main ul {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .featured-content h1 {
    font-size: 1.25rem;
  }

  .ad-space {
    padding: 1rem;
  }
}