/* Blog-wide CSS Variables */
:root {
  --primary-color: #03629c;
  --primary-light: #038ADD;
  --primary-dark: #024B78;
  --secondary-color: #9C0362;
  --secondary-light: #C8047D;
  --secondary-dark: #A00364;
  --accent-bg: #e9f1f9;
  --text-secondary: #666;
  --c-white: #ffffff;
  --c-white-soft: #f8f9fa;
  --c-white-mute: #e2e8f0;
  --border-radius: 8px;
  --border-radius-small: 6px;
  --shadow: 0 2px 10px rgba(0,0,0,0.1);
}

/* Blog Article Layout */
.blog-article {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--c-white-soft);
  min-height: 100vh;
  color: #333;
}

.blog-article-header {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
  color: white;
  text-align: center;
  padding: 2rem 1rem;
  margin-bottom: 0;
  position: relative;
  overflow: hidden;
}

.blog-article-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 120" preserveAspectRatio="none"><path d="M321.39,56.44c58-10.79,114.16-30.13,172-41.86,82.39-16.72,168.19-17.73,250.45-.39C823.78,31,906.67,72,985.66,92.83c70.05,18.48,146.53,26.09,214.34,3V0H0V27.35A600.21,600.21,0,0,0,321.39,56.44Z" fill="rgba(255,255,255,0.1)"></path></svg>') repeat-x;
  background-size: 1200px 120px;
  animation: wave 20s linear infinite;
  opacity: 0.3;
}

@keyframes wave {
  0% { transform: translateX(0); }
  100% { transform: translateX(-1200px); }
}

.blog-article-title {
  font-size: 1.6em;
  color: white;
  margin-bottom: 0.4rem;
  line-height: 1.1;
  font-weight: 600;
  position: relative;
  z-index: 1;
}

.blog-article-subtitle {
  font-size: 0.9em;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 0.6rem;
  font-weight: 400;
  line-height: 1.2;
  position: relative;
  z-index: 1;
}

.blog-article-meta {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.8rem;
  font-size: 0.8em;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 0.6rem;
  position: relative;
  z-index: 1;
}

.blog-meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.blog-categories {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-top: 0.4rem;
  position: relative;
  z-index: 1;
}

.blog-category {
  background: rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.9);
  padding: 0.25rem 0.6rem;
  border-radius: 10px;
  font-size: 0.7em;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Two-column layout */
.blog-content-wrapper {
  display: flex;
  max-width: 1200px;
  margin: 0 auto;
  gap: 2rem;
  padding: 2rem 1rem;
  align-items: flex-start;
}

/* Sidebar */
.blog-sidebar {
  flex: 0 0 280px;
  background: white;
  border-radius: var(--border-radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  position: sticky;
  top: 2rem;
  max-height: calc(100vh - 4rem);
  overflow-y: auto;
}

.sidebar-section {
  margin-bottom: 2rem;
}

.sidebar-section:last-child {
  margin-bottom: 0;
}

.sidebar-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 1rem;
  border-bottom: 2px solid var(--accent-bg);
  padding-bottom: 0.5rem;
}

.sidebar-nav {
  list-style: none;
  padding: 0;
  margin: 0;
}

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

.sidebar-nav a {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  transition: all 0.2s ease;
  font-size: 0.9rem;
}

.sidebar-nav a:hover {
  background: var(--accent-bg);
  color: var(--primary-color);
}

/* Main content */
.main-content {
  flex: 1;
  background: white;
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: var(--shadow);
}

/* Content sections */
.content-section {
  margin-bottom: 3rem;
}

.content-section h2 {
  color: var(--primary-color);
  border-bottom: 3px solid var(--accent-bg);
  padding-bottom: 0.5rem;
  margin-bottom: 1.5rem;
  font-size: 1.4rem;
}

.content-section h3 {
  color: var(--primary-dark);
  margin-top: 2rem;
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.content-section h4 {
  color: var(--primary-color);
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
  font-size: 1.1rem;
}

/* Mnemonic class boxes - adapted from drug-class-box */
.mnemonic-class-box {
  background: linear-gradient(135deg, var(--accent-bg) 0%, #f0f7ff 100%);
  border: 2px solid var(--primary-light);
  border-radius: 12px;
  padding: 1.5rem;
  margin: 1.5rem 0;
  box-shadow: var(--shadow);
}

.mnemonic-class-title {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 1rem;
  text-align: center;
  border-bottom: 2px solid var(--primary-light);
  padding-bottom: 0.5rem;
}

/* Drug class boxes for pharmacology content */
.drug-class-box {
  background: linear-gradient(135deg, var(--accent-bg) 0%, #f0f7ff 100%);
  border: 2px solid var(--primary-light);
  border-radius: 12px;
  padding: 1.5rem;
  margin: 1.5rem 0;
  box-shadow: var(--shadow);
}

.drug-class-title {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 1rem;
  text-align: center;
  border-bottom: 2px solid var(--primary-light);
  padding-bottom: 0.5rem;
}

/* Warning and tip boxes */
.tip-box {
  background: linear-gradient(135deg, #e8f4fd 0%, #f0f9ff 100%);
  border-left: 4px solid var(--primary-color);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 8px 8px 0;
  box-shadow: 0 2px 8px rgba(3, 98, 156, 0.1);
}

.warning-box {
  background: linear-gradient(135deg, #fff3cd 0%, #fef7e0 100%);
  border-left: 4px solid #ffc107;
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 8px 8px 0;
  box-shadow: 0 2px 8px rgba(255, 193, 7, 0.2);
}

.alert-box {
  background: linear-gradient(135deg, #d1ecf1 0%, #bee5eb 100%);
  border: 2px solid #17a2b8;
  border-radius: 8px;
  padding: 1.5rem;
  margin: 1.5rem 0;
  box-shadow: var(--shadow);
}

.alert-box h3 {
  color: #0c5460;
  margin-top: 0;
  margin-bottom: 0.75rem;
  font-size: 1.1rem;
}

.nursing-considerations {
  background: white;
  border: 2px solid var(--secondary-color);
  border-radius: 12px;
  padding: 1.5rem;
  margin: 1.5rem 0;
  box-shadow: var(--shadow);
}

.consideration-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--secondary-color);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.consideration-item {
  margin-bottom: 1.5rem;
}

.consideration-item:last-child {
  margin-bottom: 0;
}

/* CTA styling */
.pharmacology-cta {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 100%);
  color: white;
  padding: 1rem;
  border-radius: var(--border-radius);
  text-align: center;
  margin: 1rem 0;
  box-shadow: var(--shadow);
}

.pharmacology-cta h3 {
  color: white;
  margin-bottom: 0.5rem;
  font-size: 1.1em;
}

.pharmacology-cta p {
  margin-bottom: 0.8rem;
  font-size: 0.9em;
  opacity: 0.95;
}

.cta-button {
  display: inline-block;
  background: white;
  color: var(--primary-color);
  padding: 0.75rem 2rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  border: 2px solid white;
}

.cta-button:hover {
  background: transparent;
  color: white;
  transform: translateY(-2px);
  text-decoration: none;
}

.mnemonic-example {
  background: var(--c-white);
  border: 2px solid var(--primary-light);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  margin: 1.5rem 0;
}

.example-title {
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.mechanism-box {
  background: var(--accent-bg);
  padding: 1rem;
  border-radius: var(--border-radius-small);
  margin-bottom: 1rem;
}

/* Study tips section styles */
.study-strategy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.study-tip-card {
  background: white;
  border: 2px solid var(--accent-bg);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
}

.study-tip-card:hover {
  border-color: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0,0,0,0.15);
}

.study-tip-card h3 {
  color: var(--primary-color);
  margin-top: 0;
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.study-tip-card ul {
  margin: 0;
  padding-left: 1.2rem;
}

.study-tip-card li {
  margin-bottom: 0.75rem;
  line-height: 1.5;
}

/* Conclusion section styles */
.conclusion-section {
  background: linear-gradient(135deg, var(--accent-bg) 0%, #f0f7ff 100%);
  border-radius: var(--border-radius);
  padding: 2rem;
  margin: 2rem 0;
  border: 2px solid var(--primary-light);
}

.conclusion-section h2 {
  color: var(--primary-color);
  margin-top: 0;
  border-bottom: 2px solid var(--primary-light);
  padding-bottom: 0.5rem;
}

.cta-section {
  margin-top: 2rem;
  text-align: center;
}

.cta-section h3 {
  color: var(--primary-dark);
  margin-bottom: 1.5rem;
}

.resource-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.resource-link {
  display: block;
  background: white;
  border: 2px solid var(--primary-light);
  border-radius: var(--border-radius);
  padding: 1rem;
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
  text-align: left;
}

.resource-link:hover {
  background: var(--primary-color);
  color: white;
  text-decoration: none;
  transform: translateY(-2px);
}

/* References section */
.references-section {
  background: var(--c-white-mute);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  margin: 2rem 0;
  border-left: 4px solid var(--text-secondary);
}

.references-section h3 {
  color: var(--text-secondary);
  margin-top: 0;
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.references-section ol {
  margin: 0;
  padding-left: 1.5rem;
}

.references-section li {
  margin-bottom: 0.75rem;
  line-height: 1.5;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

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

.references-section a:hover {
  text-decoration: underline;
}

/* Related Resources Section */
.related-resources {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.resource-card {
  background: var(--c-white);
  border: 2px solid var(--primary-light);
  border-radius: var(--border-radius-small);
  padding: 1rem;
  text-align: center;
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
}

.resource-card:hover {
  background: var(--primary-light);
  color: white;
  transform: translateY(-2px);
  text-decoration: none;
}

.resource-card .resource-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  color: var(--primary-color);
}

.resource-card:hover .resource-icon {
  color: white;
}

.resource-card h4 {
  margin: 0 0 0.5rem 0;
  font-size: 1.1em;
  font-weight: 600;
}

.resource-card p {
  margin: 0;
  font-size: 0.9em;
  opacity: 0.8;
}

.resource-card:hover p {
  opacity: 1;
}

/* Back to top button styles */
.back-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--primary-color);
  color: white;
  width: 50px;
  height: 50px;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1000;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.back-to-top i,
.back-to-top span {
  font-size: 1.2rem;
}

/* Mobile responsive styles */
@media (max-width: 768px) {
  .blog-content-wrapper {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
  }

  .blog-sidebar {
    flex: none;
    position: static;
    max-height: none;
    order: 2;
  }

  .main-content {
    order: 1;
    padding: 1.5rem;
  }

  .blog-article-title {
    font-size: 1.4em;
  }
  
  .blog-article-subtitle {
    font-size: 0.85em;
  }

  .blog-article-meta {
    flex-direction: column;
    gap: 0.3rem;
    font-size: 0.75em;
  }

  .pharmacology-cta {
    padding: 0.8rem;
    margin: 0.8rem 0;
  }

  .mnemonic-class-box {
    padding: 1rem;
    margin: 1rem 0;
  }

  .drug-class-box {
    padding: 1rem;
    margin: 1rem 0;
  }

  .mnemonic-example {
    padding: 1rem;
    margin: 1rem 0;
  }

  .nursing-considerations {
    padding: 1rem;
    margin: 1rem 0;
  }

  .study-strategy-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .resource-links {
    grid-template-columns: 1fr;
  }

  .conclusion-section {
    padding: 1.5rem;
  }

  .related-resources {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.8rem;
    margin: 1.5rem 0;
  }
  
  .resource-card {
    padding: 0.8rem;
  }
  
  .resource-card .resource-icon {
    font-size: 1.5rem;
  }
}