/* ======================================================
   Blog — MSA Projects
   Blog-specific styles (listing + individual posts)
   ====================================================== */

/* ---------- Variables ---------- */
:root {
  --blog-primary: #42b0f8;
  --blog-primary-dark: #1a8fd8;
  --blog-text: #333333;
  --blog-text-light: #666666;
  --blog-bg: #f8fbff;
  --blog-card-bg: #ffffff;
  --blog-border: #e2eefd;
  --blog-radius: 8px;
  --blog-shadow: 0 2px 20px rgba(66, 176, 248, 0.08);
  --blog-shadow-hover: 0 8px 30px rgba(66, 176, 248, 0.18);
  --blog-font: "Open Sans", sans-serif;
  --blog-font-heading: "Poppins", sans-serif;
}

/* ---------- Blog Section (on index.html) ---------- */
.blog-section {
  padding: 60px 0;
  background: var(--blog-bg);
}

/* ---------- Blog Page Layout ---------- */
.blog-page {
  background: var(--blog-bg);
  min-height: 100vh;
}

.blog-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
}

.blog-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  align-items: start;
}

@media (max-width: 992px) {
  .blog-layout {
    grid-template-columns: 1fr;
  }
}

/* ---------- Blog Header ---------- */
.blog-header {
  text-align: center;
  margin-bottom: 50px;
}

.blog-header h1 {
  font-family: var(--blog-font-heading);
  font-size: 36px;
  font-weight: 700;
  color: var(--blog-text);
  margin-bottom: 10px;
}

.blog-header h1 span {
  color: var(--blog-primary);
}

.blog-header p {
  font-size: 16px;
  color: var(--blog-text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* ---------- Blog Grid (Listing) ---------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 30px;
}

@media (max-width: 768px) {
  .blog-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- Blog Card ---------- */
.blog-card {
  background: var(--blog-card-bg);
  border-radius: var(--blog-radius);
  border: 1px solid var(--blog-border);
  overflow: hidden;
  box-shadow: var(--blog-shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--blog-shadow-hover);
}

.blog-card__image {
  position: relative;
  overflow: hidden;
  height: 220px;
}

.blog-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.blog-card:hover .blog-card__image img {
  transform: scale(1.05);
}

.blog-card__category {
  position: absolute;
  top: 15px;
  left: 15px;
  background: var(--blog-primary);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 12px;
  border-radius: 20px;
}

.blog-card__body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.blog-card__date {
  font-size: 13px;
  color: var(--blog-primary);
  font-weight: 500;
  margin-bottom: 8px;
}

.blog-card__title {
  font-family: var(--blog-font-heading);
  font-size: 18px;
  font-weight: 600;
  color: var(--blog-text);
  margin-bottom: 12px;
  line-height: 1.4;
}

.blog-card__title a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s;
}

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

.blog-card__excerpt {
  font-size: 14px;
  color: var(--blog-text-light);
  line-height: 1.6;
  margin-bottom: 16px;
  flex: 1;
}

.blog-card__link {
  color: var(--blog-primary);
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s ease;
}

.blog-card__link:hover {
  gap: 10px;
}

.blog-card__link::after {
  content: "→";
}

/* ---------- Sidebar ---------- */
.blog-sidebar {
  position: sticky;
  top: 100px;
}

.sidebar-widget {
  background: var(--blog-card-bg);
  border: 1px solid var(--blog-border);
  border-radius: var(--blog-radius);
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: var(--blog-shadow);
}

.sidebar-widget__title {
  font-family: var(--blog-font-heading);
  font-size: 18px;
  font-weight: 600;
  color: var(--blog-text);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--blog-primary);
}

/* Recent posts widget */
.recent-posts {
  list-style: none;
  padding: 0;
  margin: 0;
}

.recent-posts li {
  padding: 10px 0;
  border-bottom: 1px solid var(--blog-border);
}

.recent-posts li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.recent-posts li a {
  font-size: 14px;
  color: var(--blog-text);
  text-decoration: none;
  line-height: 1.4;
  transition: color 0.2s;
  display: block;
}

.recent-posts li a:hover {
  color: var(--blog-primary);
}

/* Categories widget */
.category-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.category-list li {
  margin-bottom: 8px;
}

.category-list li a {
  font-size: 14px;
  color: var(--blog-text-light);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 6px;
  transition: all 0.2s;
}

.category-list li a::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--blog-primary);
  border-radius: 50%;
  flex-shrink: 0;
}

.category-list li a:hover {
  background: #f0f7ff;
  color: var(--blog-primary);
}

/* ---------- Breadcrumbs ---------- */
.blog-breadcrumbs {
  background: #f1f6fe;
  padding: 15px 0;
  border-bottom: 1px solid var(--blog-border);
}

.blog-breadcrumbs .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.blog-breadcrumbs ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  padding: 0;
  margin: 0;
  font-size: 14px;
}

.blog-breadcrumbs li {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--blog-text-light);
}

.blog-breadcrumbs li + li::before {
  content: "›";
  color: #aaa;
  font-size: 16px;
  margin-right: 4px;
}

.blog-breadcrumbs a {
  color: var(--blog-primary);
  text-decoration: none;
  transition: color 0.2s;
}

.blog-breadcrumbs a:hover {
  color: var(--blog-primary-dark);
}

/* ---------- Article Page ---------- */
.blog-article {
  background: var(--blog-card-bg);
  border: 1px solid var(--blog-border);
  border-radius: var(--blog-radius);
  overflow: hidden;
  box-shadow: var(--blog-shadow);
}

.blog-article__hero {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
}

@media (max-width: 768px) {
  .blog-article__hero {
    height: 250px;
  }
}

.blog-article__content {
  padding: 40px;
}

@media (max-width: 768px) {
  .blog-article__content {
    padding: 24px;
  }
}

.blog-article__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  font-size: 13px;
  color: var(--blog-text-light);
}

.blog-article__meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.blog-article__meta-item i {
  color: var(--blog-primary);
  font-size: 14px;
}

.blog-article__badge {
  display: inline-block;
  background: var(--blog-primary);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 12px;
  border-radius: 20px;
}

.blog-article__content h1 {
  font-family: var(--blog-font-heading);
  font-size: 32px;
  font-weight: 700;
  color: var(--blog-text);
  line-height: 1.3;
  margin-bottom: 24px;
}

@media (max-width: 768px) {
  .blog-article__content h1 {
    font-size: 24px;
  }
}

.blog-article__content h2 {
  font-family: var(--blog-font-heading);
  font-size: 24px;
  font-weight: 600;
  color: var(--blog-text);
  margin-top: 36px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid #e2eefd;
}

.blog-article__content h3 {
  font-family: var(--blog-font-heading);
  font-size: 20px;
  font-weight: 600;
  color: var(--blog-text);
  margin-top: 28px;
  margin-bottom: 12px;
}

.blog-article__content p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--blog-text-light);
  margin-bottom: 16px;
}

.blog-article__content a {
  color: var(--blog-primary);
  text-decoration: underline;
  transition: color 0.2s;
}

.blog-article__content a:hover {
  color: var(--blog-primary-dark);
}

.blog-article__content ul,
.blog-article__content ol {
  margin: 16px 0;
  padding-left: 24px;
}

.blog-article__content li {
  font-size: 15px;
  line-height: 1.7;
  color: var(--blog-text-light);
  margin-bottom: 8px;
}

.blog-article__content pre {
  background: #1e293b;
  color: #e2e8f0;
  padding: 20px;
  border-radius: var(--blog-radius);
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.6;
  margin: 20px 0;
}

.blog-article__content code {
  background: #f1f5f9;
  color: #0f172a;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 14px;
}

.blog-article__content pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}

.blog-article__content blockquote {
  border-left: 4px solid var(--blog-primary);
  margin: 24px 0;
  padding: 16px 24px;
  background: #f0f7ff;
  border-radius: 0 var(--blog-radius) var(--blog-radius) 0;
  font-style: italic;
  color: var(--blog-text);
}

/* ---------- Table of Contents ---------- */
.toc {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: toc-counter;
}

.toc li {
  counter-increment: toc-counter;
  margin-bottom: 6px;
}

.toc li a {
  font-size: 14px;
  color: var(--blog-text-light);
  text-decoration: none;
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 0;
  transition: color 0.2s;
  line-height: 1.4;
}

.toc li a::before {
  content: counter(toc-counter) ".";
  color: var(--blog-primary);
  font-weight: 600;
  font-size: 13px;
  flex-shrink: 0;
}

.toc li a:hover {
  color: var(--blog-primary);
}

/* ---------- CTA Box ---------- */
.blog-cta {
  background: linear-gradient(135deg, #42b0f8 0%, #1a8fd8 100%);
  border-radius: var(--blog-radius);
  padding: 32px;
  text-align: center;
  color: #fff;
  margin-top: 40px;
}

.blog-cta h3 {
  font-family: var(--blog-font-heading);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 12px;
  color: #fff;
}

.blog-cta p {
  font-size: 15px;
  line-height: 1.6;
  margin-bottom: 20px;
  opacity: 0.9;
}

.blog-cta a {
  display: inline-block;
  background: #fff;
  color: var(--blog-primary);
  padding: 12px 30px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  transition: transform 0.3s, box-shadow 0.3s;
}

.blog-cta a:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

/* ---------- Related Posts ---------- */
.related-posts {
  margin-top: 40px;
}

.related-posts__title {
  font-family: var(--blog-font-heading);
  font-size: 24px;
  font-weight: 600;
  color: var(--blog-text);
  margin-bottom: 24px;
}

.related-posts .blog-grid {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}