@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700&display=swap');

/* Color variables */
:root {
  --primary-color: #2b6cb0;
  --secondary-color: #f7fafc;
}

/* Reset and base */
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Poppins', sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: var(--secondary-color);
}
a { color: var(--primary-color); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { width: 95%; max-width: 1040px; margin: 0 auto; padding: 1rem; }

/* Header */
.site-header {
  background-color: #fff;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 999;
}
.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 1rem;
}
.logo img { height: 48px; width: auto; }
.site-nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}
.site-nav li { margin-left: 1.5rem; }
.site-nav li.search-container {
  margin-left: auto;
  flex-grow: 1;
  position: relative;
}
#search-input {
  width: 100%;
  max-width: 280px;
  padding: 0.5rem;
  border: 1px solid #ccc;
  border-radius: 4px;
}
.search-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 4px;
  margin-top: 0.5rem;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  max-height: 250px;
  overflow-y: auto;
  display: none;
}
.search-results li { padding: 0.5rem; border-bottom: 1px solid #f1f1f1; }
.search-results li:last-child { border-bottom: none; }
.search-results li a { display: block; color: #333; }
.search-results li a:hover { background-color: #f0f4f8; }

/* Footer */
.site-footer {
  background-color: #1a202c;
  color: #e2e8f0;
  padding: 2rem 0;
  margin-top: 2rem;
}
.site-footer p {
  margin: 0.5rem 0;
  text-align: center;
  font-size: 0.875rem;
}
.site-footer a {
  color: #90cdf4;
  margin: 0 0.5rem;
}

/* Home page */
.home-container { text-align: center; padding-top: 2rem; }
.home-container h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  color: var(--primary-color);
}
.home-container .tagline {
  margin-bottom: 2rem;
  font-size: 1.25rem;
  color: #555;
}
.home-category {
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
  padding: 1rem;
  margin-bottom: 1.5rem;
  text-align: left;
}
.home-category h2 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--primary-color);
}
.home-category ul { list-style: none; }
.home-category li { margin-bottom: 0.25rem; }
.home-category li a { color: #2a4365; }

/* Category page */
.category-container h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}
.article-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
  list-style: none;
}
.article-list li {
  background-color: #fff;
  padding: 0.75rem;
  border-radius: 6px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}
.article-list li a {
  color: #2a4365;
  display: block;
}

/* Article */
.article-container { padding-top: 1rem; }
.article {
  background-color: #fff;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}
.article h1 {
  font-size: 2.25rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}
.article .intro {
  font-style: italic;
  margin-bottom: 1.5rem;
  color: #555;
}
.toc {
  margin-bottom: 1.5rem;
  background-color: #f7fafc;
  padding: 1rem;
  border-radius: 6px;
}
.toc h2 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--primary-color);
}
.toc ul { list-style: none; margin-left: 0; }
.toc li { margin-bottom: 0.25rem; }

.article h2 {
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  font-size: 1.75rem;
  color: var(--primary-color);
}
.article p { margin-bottom: 1rem; color: #333; }
.faq-list { margin-top: 1rem; }
.faq-item strong {
  display: block;
  margin-bottom: 0.25rem;
  color: #2a4365;
}
.faq-item p { margin-bottom: 0.5rem; color: #444; }
.related-links { list-style: none; display: flex; flex-direction: column; }
.related-links li { margin-bottom: 0.25rem; }
.related-links li a { color: #2a4365; }

/* Simple pages */
.simple-page {
  background-color: #fff;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
  margin-top: 1rem;
}
.simple-page h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}
.simple-page p { margin-bottom: 1rem; color: #333; }

/* Responsive adjustments */
@media (max-width: 600px) {
  .header-container { flex-direction: column; align-items: flex-start; }
  .site-nav ul { flex-wrap: wrap; }
  .site-nav li { margin: 0.5rem 0; }
  .article-list { grid-template-columns: 1fr; }
}

/* AdSense placeholders */
.adsense-placeholder {
  display: block;
  width: 100%;
  margin: 1rem 0;
  padding: 1rem;
  background-color: #f7fafc;
  border: 1px dashed #cbd5e0;
  text-align: center;
  color: #718096;
  font-size: 0.875rem;
  border-radius: 6px;
}