/*
  Theme: Zenith
  Font: Montserrat
  Tone: Professional & Authoritative
*/

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

:root {
  --primary-color: #4C51BF; /* Professional Indigo */
  --secondary-color: #F7FAFC; /* Very Light Gray Background */
  --text-dark: #2D3748; /* Dark Charcoal Text */
  --text-light: #718096; /* Lighter Gray Text */
  --border-color: #E2E8F0;
  --white-color: #ffffff;
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

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

body {
  font-family: 'Montserrat', sans-serif;
  line-height: 1.7;
  background-color: var(--secondary-color);
  color: var(--text-dark);
  font-size: 16px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* --- Header & Navigation --- */
.site-header {
  background-color: var(--white-color);
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.site-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

.main-nav a {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 600;
  padding: 0.5rem 0;
  position: relative;
  transition: color 0.3s ease;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: width 0.3s ease;
}

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

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}

/* --- Main Layout --- */
.main-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding: 2rem 0;
}

/* --- Main Content & Articles --- */
.main-content {
  background-color: var(--white-color);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
}

.main-content h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  line-height: 1.2;
  color: var(--text-dark);
}

.main-content h2 {
    font-size: 1.75rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color);
    color: var(--text-dark);
}

.main-content h3 {
    font-size: 1.25rem;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    color: var(--primary-color);
}

.main-content p {
  margin-bottom: 1rem;
  color: var(--text-light);
}

.main-content > p:first-of-type {
    font-size: 1.1rem;
    color: var(--text-dark);
}

.main-content a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  transition: text-decoration 0.3s ease;
}

.main-content a:hover {
  text-decoration: underline;
}

.main-content ul, .main-content ol {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-light);
}

.main-content li {
    margin-bottom: 0.5rem;
}

.articles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}

.article-card {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
  background: var(--white-color);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

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

.article-card h3 {
  margin-top: 0;
  font-size: 1.25rem;
  flex-grow: 1;
}

.article-card h3 a {
    color: var(--text-dark);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.article-card p {
    color: var(--text-light);
    margin: 0.5rem 0 1rem;
}

.read-more-btn {
  display: inline-block;
  background-color: var(--primary-color);
  color: var(--white-color);
  padding: 0.6rem 1.2rem;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 600;
  transition: background-color 0.3s ease;
  align-self: flex-start;
}

.read-more-btn:hover {
  background-color: #434190;
  text-decoration: none;
}

/* Article Page Specifics */
.article-header {
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.article-meta {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: 0.5rem;
}

.cta-section {
    background-color: var(--secondary-color);
    border-left: 4px solid var(--primary-color);
    padding: 1.5rem;
    margin: 2.5rem 0;
    border-radius: 4px;
}

.cta-section p {
    margin: 0;
    font-weight: 600;
    color: var(--text-dark);
}

/* --- Sidebar --- */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.widget {
  background-color: var(--white-color);
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
}

.widget-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--border-color);
}

.widget ul {
  list-style: none;
}

.widget li {
  margin-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
}
.widget li:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.widget a {
  color: var(--text-dark);
  text-decoration: none;
  transition: color 0.3s ease;
  font-weight: 600;
}

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

.widget .promo-text {
    line-height: 1.5;
    color: var(--text-light);
}

/* --- Footer --- */
.site-footer {
  background-color: var(--text-dark);
  color: var(--secondary-color);
  padding: 3rem 0;
  margin-top: 2rem;
}

.site-footer .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.5rem;
}

.footer-links {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.footer-links a {
    color: var(--white-color);
    text-decoration: none;
    transition: text-decoration 0.3s ease;
}

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

/* --- Contact Page --- */
.contact-details p {
    margin-bottom: 0.5rem;
}

.contact-details strong {
    color: var(--primary-color);
}

/* --- Responsive Design --- */
@media (max-width: 768px) {
    .main-nav {
        display: none; /* Simple hiding for mobile, could be a hamburger menu */
    }
}


@media (min-width: 768px) {
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .main-layout {
    grid-template-columns: 2.5fr 1fr;
  }
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1200px) {
    .main-content.homepage-grid .articles-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}