/* ============================================================================
   Health Article Page Styles
   ========================================================================== */

/* Article Hero Section */
.article-hero {
  position: relative;
  padding: 40px 0 60px;
  background: linear-gradient(145deg, #005f73 0%, #0a9396 50%, #007a8a 100%);
  overflow: hidden;
}

@media (min-width: 481px) {
  .article-hero {
    padding: 60px 0 80px;
  }
}

@media (min-width: 601px) {
  .article-hero {
    padding: 80px 0 100px;
  }
}

@media (min-width: 1201px) {
  .article-hero {
    padding: 100px 0 120px;
  }
}

.article-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    radial-gradient(
      circle at 20% 50%,
      rgba(255, 255, 255, 0.1) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 80% 80%,
      rgba(255, 255, 255, 0.1) 0%,
      transparent 50%
    );
  animation: heroPattern 20s ease-in-out infinite;
}

@keyframes heroPattern {
  0%,
  100% {
    transform: translate(0, 0);
  }
  50% {
    transform: translate(30px, -30px);
  }
}

.article-hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--pure-white);
}

.article-hero__title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.1;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  color: #f0f0f0;
}

.article-hero__subtitle {
  font-size: clamp(1.1rem, 2.5vw, 1.3rem);
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
  color: #f0f0f0;
}

/* Filter Section */
.article-filter {
  background: var(--bg-light);
  padding: 24px 0;
  border-bottom: 1px solid var(--border-light);
}

@media (min-width: 601px) {
  .article-filter {
    padding: 40px 0;
  }
}

.article-filter__controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  align-items: center;
}

@media (min-width: 601px) {
  .article-filter__controls {
    gap: 12px;
  }
}

.article-filter__btn {
  background: var(--pure-white);
  border: 2px solid var(--border-light);
  color: var(--text-medium);
  padding: 10px 16px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  min-height: 44px;
}

@media (min-width: 601px) {
  .article-filter__btn {
    padding: 12px 20px;
    font-size: 14px;
  }
}

.article-filter__btn:hover {
  background: var(--bg-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.article-filter__btn--active {
  background: var(--secondary-color);
  color: var(--pure-white);
  border-color: var(--secondary-color);
}

.article-filter__btn--active:hover {
  background: var(--secondary-color-hover);
  border-color: var(--secondary-color-hover);
}

/* Articles Section */
.articles {
  padding: 40px 0;
  background: var(--pure-white);
}

@media (min-width: 601px) {
  .articles {
    padding: 60px 0;
  }
}

@media (min-width: 1201px) {
  .articles {
    padding: 80px 0;
  }
}

.articles__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-bottom: 40px;
}

@media (min-width: 601px) {
  .articles__grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-bottom: 50px;
  }
}

@media (min-width: 1201px) {
  .articles__grid {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
  }
}

/* Article Card */
.article-card {
  background: var(--pure-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.article-card__image {
  position: relative;
  width: 100%;
  height: 240px;
  overflow: hidden;
  background:
    linear-gradient(45deg, #f0f0f0 25%, transparent 25%),
    linear-gradient(-45deg, #f0f0f0 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #f0f0f0 75%),
    linear-gradient(-45deg, transparent 75%, #f0f0f0 75%);
  background-size: 20px 20px;
  background-position:
    0 0,
    0 10px,
    10px -10px,
    -10px 0px;
}

.article-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

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

.article-card__badge {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--secondary-color);
  color: var(--pure-white);
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.article-card__content {
  padding: 24px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

@media (min-width: 601px) {
  .article-card__content {
    padding: 32px;
  }
}

.article-card__meta {
  display: flex;
  margin-bottom: 16px;
  color: var(--text-light);
  font-size: 14px;
}

.article-card__date {
  display: flex;
  align-items: center;
  gap: 6px;
}

.article-card__author {
  display: flex;
  align-items: center;
  gap: 6px;
}

.article-card__title {
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: 16px;
  line-height: 1.4;
  flex-grow: 1;
}

.article-card__excerpt {
  color: var(--text-medium);
  line-height: 1.6;
  margin-bottom: 24px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 20px;
  border-top: 1px solid var(--border-light);
  margin-top: auto;
}

.article-card__read-more {
  color: var(--secondary-color);
  font-weight: 500;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-fast);
}

.article-card__read-more:hover {
  color: var(--secondary-color-hover);
  transform: translateX(4px);
}

.article-card__read-time {
  color: var(--text-light);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Load More Section */
.articles__load-more {
  text-align: center;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 32px;
  border: none;
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  min-width: 160px;
}

.button--secondary {
  background: var(--pure-white);
  color: var(--secondary-color);
  border: 2px solid var(--secondary-color);
}

.button--secondary:hover {
  background: var(--secondary-color);
  color: var(--pure-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Hidden/Visible states for filtering */
.article-card.hidden {
  display: none;
}

.article-card.fade-out {
  opacity: 0;
  transform: translateY(20px);
}

.article-card.fade-in {
  opacity: 1;
  transform: translateY(0);
}

/* Loading states */
.articles__grid.loading {
  opacity: 0.7;
  pointer-events: none;
}

.article-card.loading {
  animation: cardLoading 1.5s ease-in-out infinite;
}

@keyframes cardLoading {
  0%,
  100% {
    opacity: 0.6;
  }
  50% {
    opacity: 1;
  }
}

/* Empty state */
.articles__empty {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-light);
}

.articles__empty-icon {
  font-size: 4rem;
  color: var(--border-light);
  margin-bottom: 20px;
}

.articles__empty-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-medium);
  margin-bottom: 12px;
}

.articles__empty-text {
  font-size: 1rem;
  line-height: 1.6;
  max-width: 400px;
  margin: 0 auto;
}

/* Mobile-first responsive enhancements */
.article-card__title {
  font-size: 1.2rem;
}

.article-card__meta {
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

@media (min-width: 481px) {
  .article-card__meta {
    flex-direction: row;
    align-items: center;
    gap: 16px;
  }
}

@media (min-width: 601px) {
  .article-card__title {
    font-size: 1.4rem;
  }
}

/* Print styles */
@media print {
  .article-filter,
  .articles__load-more {
    display: none;
  }

  .article-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ddd;
  }

  .article-card:hover {
    transform: none;
  }
}