/* =================================
   NEWS PAGE STYLES
   ================================= */

/* --- News Hero Section --- */
.news-hero {
  position: relative;
  min-height: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--section-padding) + 80px) 0 var(--section-padding);
  background: var(--bg-primary);
  overflow: hidden;
}

.news-hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.news-label {
  display: inline-block;
  padding: 0.5rem 1.5rem;
  background: rgba(0, 136, 255, 0.1);
  border: 1px solid rgba(0, 136, 255, 0.3);
  border-radius: 50px;
  color: var(--blue-light);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 2rem;
}

.news-hero-title {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.news-hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 700px;
  margin: 0 auto;
}

/* --- News Filters Section --- */
.news-filters-section {
  min-height: auto;
  padding: 3rem 0;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.news-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.filter-btn {
  padding: 0.75rem 1.5rem;
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: 50px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-elevated);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.filter-btn.active {
  background: var(--gradient-main);
  border-color: transparent;
  color: var(--white);
  box-shadow: 0 4px 12px rgba(0, 136, 255, 0.3);
}

/* --- News Content Section --- */
.news-content-section {
  min-height: auto;
  padding: var(--section-padding) 0;
  background: var(--bg-primary);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2.5rem;
  margin-bottom: 4rem;
}

/* Loading Spinner */
.loading-spinner {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 0;
  gap: 1.5rem;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(0, 136, 255, 0.1);
  border-top-color: var(--blue-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-spinner p {
  color: var(--text-muted);
  font-size: 1rem;
}

/* News Card */
.news-card {
  position: relative;
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
  display: flex;
  flex-direction: column;
}

.news-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-hover);
  box-shadow: 
    0 10px 30px rgba(0, 0, 0, 0.2),
    0 20px 50px rgba(0, 136, 255, 0.1);
}

.news-card.featured {
  border-color: var(--blue-primary);
  background: var(--bg-card-elevated);
}

.news-card.featured::before {
  content: '注目';
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.5rem 1rem;
  background: var(--gradient-main);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: 20px;
  z-index: 2;
  box-shadow: 0 4px 12px rgba(0, 136, 255, 0.4);
}

[lang="en"] .news-card.featured::before {
  content: 'FEATURED';
}

.news-card-image {
  width: 100%;
  height: 220px;
  background: linear-gradient(135deg, rgba(0, 136, 255, 0.1), rgba(0, 212, 255, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

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

.news-card:hover .news-card-image img {
  transform: scale(1.05);
}

.news-card-image.no-image {
  background: linear-gradient(135deg, 
    rgba(0, 136, 255, 0.15), 
    rgba(0, 212, 255, 0.15), 
    rgba(139, 92, 246, 0.15));
}

.news-card-image.no-image::after {
  content: '📰';
  font-size: 4rem;
  opacity: 0.3;
}

.news-card-content {
  padding: 2rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.news-card-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.news-card-category {
  padding: 0.4rem 1rem;
  background: rgba(0, 136, 255, 0.1);
  border: 1px solid rgba(0, 136, 255, 0.3);
  border-radius: 20px;
  color: var(--blue-light);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.news-card-date {
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
}

.news-card-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card-excerpt {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.news-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: auto;
}

.news-tag {
  padding: 0.3rem 0.8rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 500;
}

/* --- Pagination --- */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  margin-top: 3rem;
}

.page-btn {
  min-width: 44px;
  height: 44px;
  padding: 0 1rem;
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-btn:hover:not(:disabled) {
  border-color: var(--border-hover);
  background: var(--bg-card-elevated);
  color: var(--text-primary);
}

.page-btn.active {
  background: var(--gradient-main);
  border-color: transparent;
  color: var(--white);
}

.page-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* --- Light Theme Overrides --- */
[data-theme="light"] .news-label {
  background: rgba(3, 105, 161, 0.1);
  border-color: rgba(14, 165, 233, 0.3);
  color: var(--text-accent);
}

[data-theme="light"] .filter-btn {
  background: var(--bg-card);
  border-color: var(--border-color);
  color: var(--text-secondary);
}

[data-theme="light"] .filter-btn:hover {
  border-color: var(--border-hover);
  background: var(--bg-accent);
}

[data-theme="light"] .filter-btn.active {
  background: var(--gradient-main);
  border-color: transparent;
  color: var(--white);
  box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
}

[data-theme="light"] .news-card {
  background: var(--bg-card);
  border-color: var(--border-color);
  box-shadow: var(--shadow-soft);
}

[data-theme="light"] .news-card:hover {
  border-color: var(--border-hover);
  box-shadow: 
    0 10px 30px rgba(0, 0, 0, 0.12),
    0 20px 50px rgba(14, 165, 233, 0.15);
}

[data-theme="light"] .news-card.featured {
  border-color: var(--border-hover);
  background: var(--bg-card-elevated);
}

[data-theme="light"] .news-card-category {
  background: rgba(14, 165, 233, 0.1);
  border-color: rgba(14, 165, 233, 0.3);
  color: var(--text-accent);
}

[data-theme="light"] .news-tag {
  background: rgba(0, 0, 0, 0.05);
  border-color: rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .page-btn {
  background: var(--bg-card);
  border-color: var(--border-color);
}

[data-theme="light"] .page-btn:hover:not(:disabled) {
  border-color: var(--border-hover);
  background: var(--bg-accent);
}

/* --- Responsive Design --- */
@media (max-width: 768px) {
  .news-hero {
    min-height: 40vh;
    padding: calc(var(--section-padding) + 60px) 0 calc(var(--section-padding) / 1.5);
  }

  .news-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .news-filters {
    gap: 0.75rem;
  }

  .filter-btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.875rem;
  }

  .news-card-content {
    padding: 1.5rem;
  }

  .news-card-title {
    font-size: 1.25rem;
  }

  .pagination {
    gap: 0.25rem;
    flex-wrap: wrap;
  }

  .page-btn {
    min-width: 40px;
    height: 40px;
  }
}