/* ===== PAGE HERO (inner pages) ===== */
.page-hero {
  background-color: var(--primary-color);
  padding: 56px 0;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 20% 50%, rgba(145, 190, 213, 0.12) 0%, transparent 50%);
  pointer-events: none;
}

.page-hero-inner {
  position: relative;
  z-index: 1;
}

.page-hero h1 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--light-color);
  margin-bottom: 8px;
}

.page-hero p {
  color: rgba(255, 255, 255, 0.65);
  font-size: 1rem;
}

/* ===== ALL COURSES PAGE ===== */
.all-courses-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 32px;
  padding: 48px 0;
  align-items: start;
}

.courses-sidebar {
  background-color: var(--light-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 16px;
}

.sidebar-section {
  margin-bottom: 28px;
}

.sidebar-section:last-child {
  margin-bottom: 0;
}

.sidebar-section h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border-color);
}

.sidebar-check-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sidebar-check-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-color2);
  cursor: pointer;
}

.sidebar-check-item input[type="checkbox"] {
  accent-color: var(--primary-color);
  width: 15px;
  height: 15px;
  cursor: pointer;
}

.sidebar-check-item:hover {
  color: var(--primary-color);
}

.courses-main-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}

.courses-main-header h2 {
  font-size: 1.15rem;
  color: var(--text-color2);
  font-weight: 500;
}

.courses-main-header strong {
  color: var(--primary-color);
}

.courses-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.courses-no-result {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 48px;
  color: var(--text-color3);
  text-align: center;
  grid-column: 1 / -1;
}

.courses-no-result i {
  font-size: 2.5rem;
  color: var(--border-color2);
}

.courses-no-result p {
  font-size: 1rem;
}

.courses-no-result.visible {
  display: flex;
}

/* ===== COURSE DETAIL PAGE ===== */
.course-detail-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 32px;
  padding: 48px 0;
  align-items: start;
}

.course-detail-main h2 {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--primary-color);
  margin-bottom: 16px;
}

.course-detail-meta {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 24px;
  padding: 16px 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.course-detail-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-color2);
}

.course-detail-meta-item i {
  color: var(--primary-color);
}

.course-detail-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16/9;
  margin-bottom: 28px;
}

.course-detail-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.course-content-section {
  margin-bottom: 32px;
}

.course-content-section h3 {
  font-size: 1.15rem;
  color: var(--primary-color);
  margin-bottom: 14px;
  font-weight: 700;
}

.course-content-section p {
  color: var(--text-color2);
  line-height: 1.8;
  font-size: 0.95rem;
}

.course-levels {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.course-level-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background-color: var(--background-color2);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.course-level-icon {
  width: 36px;
  height: 36px;
  background-color: var(--secondary-color3);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  font-size: 0.9rem;
  flex-shrink: 0;
}

.course-level-item strong {
  display: block;
  font-size: 0.9rem;
  color: var(--primary-color);
}

.course-level-item span {
  font-size: 0.82rem;
  color: var(--text-color3);
}

.course-sidebar-card {
  background-color: var(--light-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 16px;
}

.course-sidebar-card h3 {
  font-size: 1.1rem;
  color: var(--primary-color);
  margin-bottom: 20px;
  font-weight: 700;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border-color);
}

.course-sidebar-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}

.course-sidebar-feature {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.9rem;
}

.course-sidebar-feature span:first-child {
  color: var(--text-color3);
  display: flex;
  align-items: center;
  gap: 8px;
}

.course-sidebar-feature span:first-child i {
  color: var(--primary-color);
  width: 16px;
}

.course-sidebar-feature strong {
  color: var(--primary-color);
  font-weight: 600;
}

/* ===== GALLERY PAGE ===== */
.gallery-filter {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 40px 0;
  flex-wrap: wrap;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.gallery-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
  position: relative;
  cursor: pointer;
}

.gallery-item img,
.gallery-item video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(1, 51, 84, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.gallery-item-overlay i {
  color: var(--light-color);
  font-size: 2rem;
}

.gallery-item:hover .gallery-item-overlay {
  opacity: 1;
}

.gallery-item:hover img,
.gallery-item:hover video {
  transform: scale(1.04);
}

.gallery-item.tall {
  grid-row: span 2;
  aspect-ratio: auto;
}

/* Lightbox */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.92);
  z-index: 9999;
  align-items: center;
  justify-content: center;
}

.lightbox.open {
  display: flex;
}

.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
}

.lightbox-content img,
.lightbox-content video {
  max-width: 100%;
  max-height: 90vh;
  border-radius: var(--radius-md);
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: -40px;
  left: 0;
  color: var(--light-color);
  font-size: 1.5rem;
  cursor: pointer;
  background: none;
  border: none;
  transition: var(--transition);
}

.lightbox-close:hover {
  color: var(--accent-orange);
}

/* ===== NEWS ARCHIVE PAGE ===== */
.news-archive-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  padding: 48px 0;
  align-items: start;
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.news-list-card {
  background-color: var(--light-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: grid;
  grid-template-columns: 220px 1fr;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.news-list-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--secondary-color);
}

.news-list-card-img {
  overflow: hidden;
}

.news-list-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.news-list-card:hover .news-list-card-img img {
  transform: scale(1.04);
}

.news-list-card-body {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.news-list-card-body h3 {
  font-size: 1.05rem;
  color: var(--primary-color);
  margin-bottom: 8px;
  line-height: 1.5;
}

.news-list-card-body p {
  font-size: 0.88rem;
  color: var(--text-color2);
  line-height: 1.6;
  margin-bottom: 14px;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.news-meta span {
  font-size: 0.78rem;
  color: var(--text-color3);
  display: flex;
  align-items: center;
  gap: 5px;
}

.news-meta span i {
  font-size: 0.72rem;
}

.news-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 16px;
}

.news-sidebar-widget {
  background-color: var(--light-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.news-sidebar-widget h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border-color);
}

.news-search-form {
  position: relative;
}

.news-search-form input {
  padding-left: 44px;
}

.news-search-btn {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--primary-color);
  cursor: pointer;
  padding: 4px;
  font-size: 1rem;
}

.recent-news-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.recent-news-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.recent-news-item-img {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
}

.recent-news-item-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.recent-news-item-info h5 {
  font-size: 0.85rem;
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 4px;
  line-height: 1.4;
}

.recent-news-item-info span {
  font-size: 0.75rem;
  color: var(--text-color3);
}

/* ===== NEWS DETAIL PAGE ===== */
.news-detail-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  padding: 48px 0;
  align-items: start;
}

.news-detail-article h1 {
  font-size: 1.75rem;
  color: var(--primary-color);
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.4;
}

.news-detail-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.news-detail-meta span {
  font-size: 0.85rem;
  color: var(--text-color3);
  display: flex;
  align-items: center;
  gap: 6px;
}

.news-detail-meta span i {
  color: var(--primary-color);
}

.news-detail-hero-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16/8;
  margin-bottom: 28px;
}

.news-detail-hero-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-detail-body p {
  font-size: 0.95rem;
  color: var(--text-color2);
  line-height: 1.9;
  margin-bottom: 18px;
}

.news-detail-body h2,
.news-detail-body h3 {
  color: var(--primary-color);
  margin: 24px 0 12px;
}

.news-tags {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin: 32px 0;
  padding: 20px 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.news-tags-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-color2);
}

.news-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  background-color: var(--background-color2);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  font-size: 0.82rem;
  color: var(--primary-color);
  cursor: pointer;
  transition: var(--transition);
}

.news-tag:hover {
  background-color: var(--secondary-color3);
  border-color: var(--secondary-color);
}

/* Comments Section */
.comments-section {
  margin-top: 48px;
}

.comments-section h3 {
  font-size: 1.25rem;
  color: var(--primary-color);
  font-weight: 700;
  margin-bottom: 24px;
}

.comments-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 40px;
}

.comment-item {
  background-color: var(--background-color2);
  border-radius: var(--radius-md);
  padding: 20px;
  border: 1px solid var(--border-color);
}

.comment-item.admin-reply {
  background-color: var(--secondary-color3);
  border-color: var(--secondary-color);
  margin-right: 32px;
  position: relative;
}

.comment-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.comment-author {
  display: flex;
  align-items: center;
  gap: 10px;
}

.comment-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background-color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--light-color);
  font-size: 0.85rem;
  font-weight: 700;
  flex-shrink: 0;
}

.comment-author-info strong {
  display: block;
  font-size: 0.9rem;
  color: var(--primary-color);
  font-weight: 700;
}

.comment-author-info span {
  font-size: 0.75rem;
  color: var(--text-color3);
}

.admin-badge {
  background-color: var(--primary-color);
  color: var(--light-color);
  font-size: 0.72rem;
  padding: 2px 10px;
  border-radius: var(--radius-xl);
  font-weight: 600;
}

.comment-text {
  font-size: 0.9rem;
  color: var(--text-color2);
  line-height: 1.7;
}

.comment-form-card {
  background-color: var(--light-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.comment-form-card h3 {
  font-size: 1.1rem;
  color: var(--primary-color);
  font-weight: 700;
  margin-bottom: 20px;
}

.comment-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ===== ABOUT PAGE ===== */
.about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  padding: 64px 0;
  align-items: center;
}

.about-img-wrap {
  position: relative;
}

.about-img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.about-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  background-color: var(--accent-orange);
  color: var(--light-color);
  padding: 16px 22px;
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--shadow-md);
}

.about-badge strong {
  display: block;
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.2;
}

.about-badge span {
  display: block;
  font-size: 0.85rem;
  margin-top: 4px;
}

.about-content h2 {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--primary-color);
  margin-bottom: 18px;
  line-height: 1.4;
}

.about-content p {
  color: var(--text-color2);
  line-height: 1.9;
  margin-bottom: 16px;
}

.about-highlights {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin: 28px 0;
}

.about-highlight-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background-color: var(--background-color2);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px 16px;
}

.about-highlight-item i {
  width: 40px;
  height: 40px;
  background-color: var(--secondary-color3);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  font-size: 1rem;
  flex-shrink: 0;
}

.about-highlight-item strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary-color);
}

.about-highlight-item span {
  display: block;
  font-size: 0.82rem;
  color: var(--text-color3);
}

.about-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

/* ===== CONTACT PAGE ===== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  padding: 64px 0;
  align-items: start;
}

.contact-info h2 {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--primary-color);
  margin-bottom: 14px;
}

.contact-info p {
  color: var(--text-color2);
  line-height: 1.8;
  margin-bottom: 28px;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 28px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.contact-item-icon {
  width: 46px;
  height: 46px;
  background-color: var(--secondary-color3);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-item-info strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 2px;
}

.contact-item-info span,
.contact-item-info a {
  font-size: 0.9rem;
  color: var(--text-color2);
  transition: var(--transition);
}

.contact-item-info a:hover {
  color: var(--accent-orange);
}

.contact-socials {
  display: flex;
  gap: 10px;
}

.contact-social-link {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background-color: var(--background-color2);
  border: 1.5px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  font-size: 1rem;
  transition: var(--transition);
}

.contact-social-link:hover {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: var(--light-color);
}

.contact-form-card {
  background-color: var(--light-color);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
}

.contact-form-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 24px;
}

.map-section {
  padding: 0 0 64px;
}

.map-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  height: 380px;
  background-color: var(--background-color2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-color3);
  font-size: 1rem;
  gap: 10px;
}

.map-wrap i {
  font-size: 1.5rem;
  color: var(--primary-color);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .all-courses-layout {
    grid-template-columns: 1fr;
  }

  .courses-sidebar {
    position: static;
  }

  .courses-list {
    grid-template-columns: 1fr 1fr;
  }

  .course-detail-layout {
    grid-template-columns: 1fr;
  }

  .news-archive-layout,
  .news-detail-layout {
    grid-template-columns: 1fr;
  }

  .news-sidebar {
    position: static;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-layout,
  .about-layout {
    grid-template-columns: 1fr;
  }

  .about-img {
    height: 320px;
  }
}

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

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .news-list-card {
    grid-template-columns: 1fr;
  }

  .news-list-card-img {
    height: 200px;
  }

  .comment-form-row {
    grid-template-columns: 1fr;
  }

  .page-hero h1 {
    font-size: 1.6rem;
  }
}

/* Lightbox media elements (JS-toggled visibility) */
.lightbox-media {
  display: none;
  max-width: 90vw;
  max-height: 90vh;
  border-radius: var(--radius-md);
  object-fit: contain;
}

.lightbox-media.visible {
  display: block;
}

.lightbox-video {
  max-width: 90vw;
  max-height: 90vh;
}