/* ============================================================
   VOLTERRA WordPress Theme — blog.css
   Blog, post, archive, search, comments, pagination, and 404.
   ============================================================ */

.blog-main {
  background: var(--surface);
  color: var(--on-surface);
  min-height: 70vh;
}

.blog-hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 28rem;
  padding: calc(var(--space-section) + 4rem) 0 var(--space-3xl);
  overflow: hidden;
  background:
    radial-gradient(circle at 15% 20%, rgba(58, 169, 255, .26), transparent 32rem),
    linear-gradient(135deg, rgba(36, 76, 13, .96), rgba(11, 28, 48, .94));
}

.blog-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(255,255,255,.05), rgba(255,255,255,0));
  pointer-events: none;
}

.blog-hero-compact {
  min-height: 22rem;
}

.blog-hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--container-narrow);
  color: #fff;
}

.blog-title {
  margin: 0;
  font-size: clamp(2.5rem, 7vw, var(--fs-4xl));
  line-height: .95;
  letter-spacing: -0.06em;
  font-weight: 800;
}

.blog-description {
  margin-top: var(--space-lg);
  max-width: 48rem;
  color: rgba(255,255,255,.82);
  font-size: var(--fs-lg);
  line-height: 1.7;
}

.blog-description p { margin: 0; }

.blog-section {
  padding: var(--space-section) 0;
}

.blog-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 22rem);
  gap: var(--space-3xl);
  align-items: start;
}

.blog-layout-single {
  grid-template-columns: minmax(0, var(--container-narrow));
  justify-content: center;
}

.blog-content-area {
  min-width: 0;
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-xl);
}

.post-card,
.search-result-card,
.single-post-card,
.page-content-card,
.no-results-card,
.comments-area,
.blog-widget,
.post-navigation-card {
  background: var(--surface-white);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-md);
}

.post-card {
  overflow: hidden;
  transition: transform var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out);
}

.post-card:hover {
  transform: translateY(-.35rem);
  box-shadow: var(--shadow-xl);
}

.post-card-media,
.single-featured-media,
.search-result-media {
  display: block;
  overflow: hidden;
  background: var(--surface-container);
}

.post-card-image,
.search-result-image,
.single-featured-image {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.post-card-image {
  aspect-ratio: 16 / 10;
  height: 100%;
}

.post-card-body {
  padding: var(--space-xl);
}

.entry-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem 1rem;
  align-items: center;
  margin-bottom: var(--space-md);
  color: var(--on-surface-variant);
  font-size: var(--fs-sm);
}

.entry-meta > span,
.entry-footer > span {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
}

.entry-meta .material-symbols-outlined,
.entry-footer .material-symbols-outlined {
  color: var(--secondary);
  font-size: 1rem;
}

.entry-meta a,
.entry-footer a,
.post-card-title a,
.search-result-title a,
.post-navigation-card a {
  color: inherit;
  text-decoration: none;
}

.entry-meta a:hover,
.entry-footer a:hover,
.post-card-title a:hover,
.search-result-title a:hover,
.post-navigation-card a:hover {
  color: var(--secondary);
}

.post-card-title,
.search-result-title {
  margin: 0 0 var(--space-md);
  color: var(--on-surface);
  font-size: clamp(1.4rem, 3vw, 2rem);
  line-height: 1.12;
  letter-spacing: -0.04em;
}

.post-card-excerpt,
.search-result-excerpt,
.entry-content {
  color: var(--on-surface-variant);
  font-size: var(--fs-base);
  line-height: 1.8;
}

.post-card-excerpt p,
.search-result-excerpt p { margin: 0; }

.read-more {
  display: inline-flex;
  margin-left: .15rem;
  color: var(--secondary);
  font-weight: 700;
  text-decoration: none;
}

.single-post-card,
.page-content-card {
  padding: clamp(1.5rem, 4vw, 3rem);
}

.single-featured-media {
  margin: 0 0 var(--space-2xl);
  border-radius: var(--radius-xl);
}

.single-featured-media figcaption {
  padding: var(--space-sm) var(--space-md);
  color: var(--on-surface-variant);
  font-size: var(--fs-sm);
  text-align: center;
}

.entry-content > *:first-child { margin-top: 0; }
.entry-content > *:last-child { margin-bottom: 0; }

.entry-content h1,
.entry-content h2,
.entry-content h3,
.entry-content h4,
.entry-content h5,
.entry-content h6 {
  margin: 2em 0 .65em;
  color: var(--on-surface);
  line-height: 1.12;
  letter-spacing: -0.04em;
}

.entry-content p,
.entry-content ul,
.entry-content ol,
.entry-content blockquote,
.entry-content table,
.entry-content figure {
  margin: 0 0 1.35rem;
}

.entry-content a {
  color: var(--secondary);
  font-weight: 600;
}

.entry-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
}

.entry-content blockquote {
  padding: var(--space-lg);
  border-left: .3rem solid var(--secondary);
  background: var(--surface-container-low);
  border-radius: var(--radius-lg);
  color: var(--on-surface);
}

.entry-content table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: var(--radius-md);
}

.entry-content th,
.entry-content td {
  padding: .85rem 1rem;
  border: 1px solid var(--outline-variant);
  text-align: left;
}

.entry-footer {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--outline-variant);
  color: var(--on-surface-variant);
  font-size: var(--fs-sm);
}

.page-links {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  align-items: center;
  margin-top: var(--space-xl);
  color: var(--on-surface);
  font-weight: 700;
}

.page-links a,
.page-links .post-page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.25rem;
  height: 2.25rem;
  padding: 0 .65rem;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-full);
  text-decoration: none;
}

.blog-sidebar {
  display: grid;
  gap: var(--space-lg);
}

.blog-widget {
  padding: var(--space-xl);
}

.blog-widget-title {
  margin: 0 0 var(--space-md);
  color: var(--on-surface);
  font-size: var(--fs-lg);
  letter-spacing: -0.03em;
}

.blog-widget ul,
.blog-widget ol {
  margin: 0;
  padding-left: 1.2rem;
}

.blog-widget li + li { margin-top: .55rem; }

.blog-widget a {
  color: var(--on-surface-variant);
  text-decoration: none;
}

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

.search-results-list {
  display: grid;
  gap: var(--space-lg);
}

.search-result-card {
  display: grid;
  grid-template-columns: minmax(9rem, 14rem) minmax(0, 1fr);
  gap: var(--space-lg);
  padding: var(--space-lg);
  align-items: center;
}

.search-result-media {
  border-radius: var(--radius-xl);
}

.search-result-image {
  aspect-ratio: 4 / 3;
  height: 100%;
}

.search-result-type {
  display: inline-flex;
  margin-bottom: .45rem;
  color: var(--secondary);
  font-size: var(--fs-xs);
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.blog-search-form-wrap {
  margin-top: var(--space-lg);
}

.search-form {
  display: flex;
  gap: .65rem;
  max-width: 38rem;
}

.search-form label {
  flex: 1;
}

.search-field {
  width: 100%;
  min-height: 3rem;
  padding: .85rem 1rem;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-full);
  color: var(--on-surface);
  font: inherit;
}

.search-submit {
  min-height: 3rem;
  padding: .85rem 1.35rem;
  border: 0;
  border-radius: var(--radius-full);
  background: var(--primary);
  color: var(--on-primary);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.search-submit:hover { background: var(--primary-light); }

.navigation.pagination {
  margin-top: var(--space-2xl);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  align-items: center;
  justify-content: center;
}

.page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .35rem;
  min-width: 2.75rem;
  height: 2.75rem;
  padding: 0 .9rem;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-full);
  background: var(--surface-white);
  color: var(--on-surface);
  font-weight: 700;
  text-decoration: none;
}

.page-numbers.current,
.page-numbers:hover {
  background: var(--primary);
  color: var(--on-primary);
  border-color: var(--primary);
}

.post-navigation-card {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
  padding: var(--space-lg);
}

.post-nav-label {
  display: block;
  margin-bottom: .3rem;
  color: var(--on-surface-variant);
  font-size: var(--fs-xs);
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.post-nav-next { text-align: right; }

.comments-area {
  margin-top: var(--space-xl);
  padding: clamp(1.5rem, 4vw, 3rem);
}

.comments-title,
.comment-reply-title {
  margin: 0 0 var(--space-lg);
  color: var(--on-surface);
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.04em;
}

.comment-list {
  margin: 0 0 var(--space-xl);
  padding: 0;
  list-style: none;
}

.comment-list .comment {
  padding: var(--space-lg);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-xl);
  background: var(--surface-container-low);
}

.comment-list .comment + .comment { margin-top: var(--space-md); }

.comment-author .avatar {
  margin-right: .65rem;
  border-radius: var(--radius-full);
  vertical-align: middle;
}

.comment-meta,
.comment-metadata {
  color: var(--on-surface-variant);
  font-size: var(--fs-sm);
}

.comment-content {
  margin-top: var(--space-md);
  color: var(--on-surface-variant);
  line-height: 1.7;
}

.comment-content p:last-child { margin-bottom: 0; }

.comment-form {
  display: grid;
  gap: var(--space-md);
}

.comment-form label {
  display: block;
  margin-bottom: .4rem;
  color: var(--on-surface);
  font-weight: 700;
}

.comment-form input:not([type="checkbox"]),
.comment-form textarea {
  width: 100%;
  padding: .9rem 1rem;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-lg);
  color: var(--on-surface);
  font: inherit;
}

.comment-form textarea { min-height: 10rem; resize: vertical; }

.no-results-card {
  padding: clamp(2rem, 5vw, 4rem);
  text-align: center;
}

.no-results-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  margin-bottom: var(--space-lg);
  border-radius: var(--radius-full);
  background: var(--secondary-fixed);
  color: var(--secondary);
  font-size: 2rem;
}

.no-results-card h2 {
  margin: 0 0 var(--space-sm);
  color: var(--on-surface);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
}

.no-results-card p {
  margin: 0 auto var(--space-lg);
  max-width: 36rem;
  color: var(--on-surface-variant);
  line-height: 1.7;
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
  margin-top: var(--space-xl);
}

.error-actions .blog-search-form-wrap { margin-top: 0; flex: 1 1 20rem; }

@media (max-width: 1024px) {
  .blog-layout {
    grid-template-columns: 1fr;
  }

  .blog-sidebar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .blog-hero {
    min-height: 20rem;
    padding: 8rem 0 var(--space-2xl);
  }

  .blog-section {
    padding: var(--space-3xl) 0;
  }

  .post-grid,
  .blog-sidebar,
  .post-navigation-card {
    grid-template-columns: 1fr;
  }

  .search-result-card {
    grid-template-columns: 1fr;
  }

  .search-form {
    flex-direction: column;
  }

  .search-submit {
    width: 100%;
  }

  .post-nav-next { text-align: left; }
}

@media (max-width: 480px) {
  .post-card-body,
  .blog-widget,
  .search-result-card,
  .comments-area,
  .single-post-card,
  .page-content-card {
    padding: var(--space-lg);
    border-radius: var(--radius-xl);
  }

  .entry-meta {
    gap: .5rem;
  }
}