:root {
  --primary-color: #0d3b66;
  --secondary-color: #faf0ca;
  --accent-color: #f4d35e;
  --text-color: #333333;
  --bg-color: #ffffff;
  --gray-light: #f4f4f4;
  --gray-medium: #e0e0e0;
  --font-main: 'Inter', system-ui, sans-serif;
  --font-heading: 'Merriweather', serif;
}

body {
  font-family: var(--font-main);
  color: var(--text-color);
  background: var(--bg-color);
  margin: 0;
  padding: 0;
  line-height: 1.6;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--primary-color);
  margin-bottom: 1rem;
}

/* Header */
header {
  background: var(--primary-color);
  color: white;
  padding: 1rem 0;
}
.header-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 1rem;
}
.brand {
  font-size: 1.5rem;
  font-weight: bold;
  color: white;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}
nav a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}
nav a:hover {
  color: var(--accent-color);
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
}
.grid-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 2rem;
}
@media (max-width: 768px) {
  .grid-layout {
    grid-template-columns: 1fr;
  }
}

/* Article */
.article-header {
  margin-bottom: 2rem;
}
.key-takeaways {
  background: var(--secondary-color);
  padding: 1.5rem;
  border-radius: 8px;
  margin-bottom: 2rem;
  border-left: 4px solid var(--accent-color);
}
.article-content img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
}
.author-byline {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
  font-size: 0.9rem;
  color: #666;
}

/* Sidebar */
.sidebar-widget {
  background: var(--gray-light);
  padding: 1.5rem;
  border-radius: 8px;
  margin-bottom: 2rem;
}
.sidebar-sticky {
  position: sticky;
  top: 20px;
}

/* Ad slots */
.ad-slot {
  background: var(--gray-medium);
  text-align: center;
  padding: 1rem;
  margin: 2rem 0;
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #666;
  font-size: 0.8rem;
}

/* Footer */
footer {
  background: var(--primary-color);
  color: white;
  padding: 3rem 0;
  margin-top: 4rem;
}
.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  padding: 0 1rem;
}
.footer-links ul {
  list-style: none;
  padding: 0;
}
.footer-links a {
  color: #ddd;
  text-decoration: none;
}
.footer-links a:hover {
  color: white;
}
.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  margin-top: 2rem;
  font-size: 0.9rem;
  color: #aaa;
}

/* Newsletter */
.newsletter-form {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}
.newsletter-form input {
  padding: 0.5rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  flex: 1;
}
.newsletter-form button {
  background: var(--accent-color);
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  color: var(--primary-color);
  font-weight: bold;
  cursor: pointer;
}

/* Social Share */
.social-share {
  display: flex;
  gap: 0.5rem;
  margin-top: 2rem;
}
.social-share a {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--gray-light);
  color: var(--text-color);
  text-decoration: none;
  border-radius: 4px;
  font-size: 0.9rem;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}
.card {
  background: white;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
  padding: 1.5rem;
  transition: transform 0.2s;
}
.card:hover {
  transform: translateY(-5px);
}
.card h3 {
  margin-top: 0;
}
.card a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: bold;
}