/* Green Building Blog - Professional Blog Design */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  background: #fafafa;
}

/* Header & Navigation */
header {
  background: linear-gradient(135deg, #1a3a1a 0%, #2d5016 100%);
  color: white;
  padding: 2rem 0;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

header .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

header h1 {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}

header p {
  font-size: 0.95rem;
  opacity: 0.9;
}

nav {
  background: #2d5016;
  padding: 0;
  margin-top: 1rem;
}

nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

nav li {
  margin-right: 2rem;
}

nav a {
  color: white;
  text-decoration: none;
  display: block;
  padding: 1rem 0;
  border-bottom: 3px solid transparent;
  transition: border-color 0.3s;
}

nav a:hover {
  border-bottom-color: #a8d5a8;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #f0f5eb 0%, #e8f0e0 100%);
  padding: 4rem 2rem;
  text-align: center;
  margin-bottom: 3rem;
  border-radius: 8px;
}

.hero h1 {
  font-size: 2.5rem;
  color: #1a3a1a;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.1rem;
  color: #555;
  max-width: 600px;
  margin: 0 auto;
}

/* Blog Grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

.article-card {
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  transition: transform 0.3s, box-shadow 0.3s;
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.12);
}

.article-card-header {
  background: linear-gradient(135deg, #2d5016 0%, #3a6b1f 100%);
  color: white;
  padding: 1.5rem;
  min-height: 120px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.article-card-header h3 {
  font-size: 1.3rem;
  line-height: 1.4;
  margin: 0;
}

.article-card-body {
  padding: 1.5rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.article-card-body p {
  color: #666;
  margin-bottom: 1rem;
  flex-grow: 1;
}

.article-card-meta {
  font-size: 0.85rem;
  color: #999;
  margin-bottom: 1rem;
}

.article-card-topics {
  font-size: 0.9rem;
  color: #2d5016;
  font-weight: 600;
  margin-bottom: 1rem;
}

.article-card a {
  color: #2d5016;
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: gap 0.3s;
}

.article-card a:hover {
  gap: 0.75rem;
}

/* Resources Section */
.resources-section {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  margin: 3rem 0;
  border-left: 4px solid #2d5016;
}

.resources-section h2 {
  color: #1a3a1a;
  margin-bottom: 1.5rem;
  font-size: 1.8rem;
}

.resources-list {
  list-style: none;
}

.resources-list li {
  padding: 1rem 0;
  border-bottom: 1px solid #eee;
}

.resources-list li:last-child {
  border-bottom: none;
}

.resources-list a {
  color: #2d5016;
  text-decoration: none;
  font-weight: 600;
}

.resources-list a:hover {
  text-decoration: underline;
}

.resources-list p {
  color: #666;
  font-size: 0.95rem;
  margin-top: 0.5rem;
}

/* Article Page */
article {
  background: white;
  padding: 3rem;
  border-radius: 8px;
  margin: 2rem 0;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
}

article h1 {
  color: #1a3a1a;
  font-size: 2.2rem;
  margin-bottom: 1rem;
  line-height: 1.3;
}

article h2 {
  color: #2d5016;
  font-size: 1.6rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
  border-bottom: 2px solid #e8f0e0;
  padding-bottom: 0.5rem;
}

article h3 {
  color: #3a6b1f;
  font-size: 1.3rem;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

article p {
  margin: 1rem 0;
  color: #333;
}

article ul, article ol {
  margin: 1rem 0 1rem 2rem;
}

article li {
  margin: 0.5rem 0;
  color: #333;
}

article strong {
  color: #1a3a1a;
  font-weight: 600;
}

article em {
  color: #555;
  font-style: italic;
}

article blockquote {
  border-left: 4px solid #2d5016;
  padding-left: 1.5rem;
  margin: 1.5rem 0;
  color: #666;
  font-style: italic;
  background: #f9f9f9;
  padding: 1rem 1rem 1rem 1.5rem;
  border-radius: 4px;
}

article a {
  color: #2d5016;
  text-decoration: none;
  font-weight: 600;
}

article a:hover {
  text-decoration: underline;
}

article hr {
  margin: 2rem 0;
  border: none;
  border-top: 1px solid #ddd;
}

/* Article Meta */
.article-meta {
  color: #999;
  font-size: 0.95rem;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #eee;
}

/* Author Bio */
.author-bio {
  background: #f0f5eb;
  padding: 1.5rem;
  border-radius: 8px;
  margin-top: 2rem;
  border-left: 4px solid #2d5016;
}

.author-bio h3 {
  margin-top: 0;
  color: #1a3a1a;
}

.author-bio p {
  margin: 0.5rem 0;
  color: #555;
}

/* Footer */
footer {
  background: #1a3a1a;
  color: white;
  padding: 2rem;
  margin-top: 4rem;
  text-align: center;
}

footer a {
  color: #a8d5a8;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 1.8rem;
  }

  nav ul {
    flex-direction: column;
  }

  nav li {
    margin-right: 0;
  }

  article {
    padding: 1.5rem;
  }

  article h1 {
    font-size: 1.6rem;
  }

  article h2 {
    font-size: 1.3rem;
  }

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

/* Utility Classes */
.text-center {
  text-align: center;
}

.mt-3 {
  margin-top: 2rem;
}

.mb-3 {
  margin-bottom: 2rem;
}

.highlight {
  background: #f0f5eb;
  padding: 0.2rem 0.4rem;
  border-radius: 3px;
}