/* ======================================================
   MedTech Voice - Blog Page Styles
   Extends the main design system with article-specific layout
   ====================================================== */

/* ======== BLOG HERO ======== */
.blog-hero {
  position: relative;
  padding: 180px 0 80px;
  background: var(--color-gradient-hero);
  text-align: center;
  overflow: hidden;
}

.blog-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse 600px 400px at 20% 50%, rgba(249, 115, 22, 0.06) 0%, transparent 70%),
    radial-gradient(ellipse 500px 300px at 80% 30%, rgba(249, 115, 22, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

.blog-hero__eyebrow {
  display: inline-block;
  font-family: var(--font-primary);
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-accent-primary);
  margin-bottom: 16px;
  padding: 6px 20px;
  border: 1px solid rgba(249, 115, 22, 0.25);
  border-radius: 100px;
  background: rgba(249, 115, 22, 0.05);
}

.blog-hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-text-primary);
  margin-bottom: 20px;
  line-height: 1.1;
}

.blog-hero__title em {
  font-style: normal;
  color: var(--color-accent-primary);
}

.blog-hero__subtitle {
  font-family: var(--font-primary);
  font-size: var(--font-size-lg);
  font-weight: 400;
  color: #F0F0F0;
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ======== TOPIC FILTER BAR ======== */
.blog-topics {
  padding: 0;
  background: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 70px;
  z-index: 90;
}

.blog-topics__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.blog-topics__bar::-webkit-scrollbar {
  display: none;
}

.blog-topics__tag {
  flex-shrink: 0;
  padding: 8px 20px;
  font-family: var(--font-primary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.blog-topics__tag:hover {
  color: var(--color-text-primary);
  border-color: rgba(249, 115, 22, 0.35);
  background: rgba(249, 115, 22, 0.05);
}

.blog-topics__tag--active {
  color: var(--color-text-primary);
  border-color: var(--color-accent-primary);
  background: rgba(249, 115, 22, 0.10);
}

/* ======== BLOG ARTICLES ======== */
.blog-article {
  padding: 80px 0;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-primary);
}

.blog-article:nth-child(even) {
  background: var(--color-bg-secondary);
}

/* Article Hero Image */
.blog-article__hero {
  margin-bottom: 32px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  position: relative;
}

.blog-article__hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 70%, rgba(0, 0, 0, 0.15) 100%);
  pointer-events: none;
}

.blog-article__hero img {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* Article Meta Row */
.blog-article__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.blog-article__category {
  display: inline-block;
  font-family: var(--font-primary);
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent-primary);
  padding: 4px 14px;
  border: 1px solid rgba(249, 115, 22, 0.25);
  border-radius: 100px;
  background: rgba(249, 115, 22, 0.05);
}

.blog-article__date,
.blog-article__read-time {
  font-family: var(--font-primary);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.blog-article__date::before {
  content: '';
}

.blog-article__read-time::before {
  content: '·';
  margin-right: 8px;
}

/* Article Title */
.blog-article__title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-primary);
  line-height: 1.15;
  margin-bottom: 24px;
}

/* Author Byline */
.blog-article__author {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--color-border);
}

.blog-article__author-img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(249, 115, 22, 0.25);
  flex-shrink: 0;
}

.blog-article__author-name {
  display: block;
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text-primary);
}

.blog-article__author-role {
  display: block;
  font-family: var(--font-primary);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-top: 2px;
}

/* Article Body */
.blog-article__body {
  max-width: 780px;
}

.blog-article__body p {
  font-family: var(--font-primary);
  font-size: var(--font-size-lg);
  color: #F0F0F0;
  line-height: 1.8;
  margin-bottom: 24px;
}

.blog-article__lede {
  font-size: var(--font-size-xl) !important;
  color: var(--color-text-primary) !important;
  line-height: 1.75 !important;
  border-left: 3px solid var(--color-accent-primary);
  padding-left: 24px;
}

.blog-article__body h3 {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-primary);
  margin: 48px 0 20px;
  line-height: 1.2;
}

.blog-article__body h4 {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-accent-light);
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.blog-article__body ul,
.blog-article__body ol {
  margin: 0 0 24px 24px;
  font-family: var(--font-primary);
  font-size: var(--font-size-lg);
  color: #F0F0F0;
  line-height: 1.8;
}

.blog-article__body li {
  margin-bottom: 12px;
}

.blog-article__body li strong {
  color: var(--color-text-primary);
}

.blog-article__body strong {
  color: var(--color-text-primary);
  font-weight: 600;
}

.blog-article__body em {
  color: var(--color-text-accent);
  font-style: italic;
}

/* Highlight Box (multi-section callout) */
.blog-article__highlight-box {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent-primary);
  border-radius: 12px;
  padding: 32px;
  margin: 32px 0;
}

.blog-article__highlight-box h4 {
  margin-top: 24px;
}

.blog-article__highlight-box h4:first-child {
  margin-top: 0;
}

.blog-article__highlight-box p {
  font-size: var(--font-size-base) !important;
  margin-bottom: 16px !important;
}

.blog-article__highlight-box p:last-child {
  margin-bottom: 0 !important;
}

/* Blockquote / Pull Quote */
.blog-article__quote {
  position: relative;
  margin: 40px 0;
  padding: 32px 32px 32px 40px;
  background: linear-gradient(135deg, rgba(249, 115, 22, 0.05) 0%, rgba(249, 115, 22, 0.03) 100%);
  border: 1px solid rgba(249, 115, 22, 0.12);
  border-radius: 12px;
}

.blog-article__quote::before {
  content: '"';
  position: absolute;
  top: -10px;
  left: 20px;
  font-family: Georgia, serif;
  font-size: 80px;
  line-height: 1;
  color: var(--color-accent-primary);
  opacity: 0.3;
}

.blog-article__quote p {
  font-size: var(--font-size-xl) !important;
  color: var(--color-text-primary) !important;
  font-style: italic;
  line-height: 1.7 !important;
  margin-bottom: 12px !important;
}

.blog-article__quote cite {
  display: block;
  font-family: var(--font-primary);
  font-size: var(--font-size-sm);
  font-style: normal;
  font-weight: 500;
  color: var(--color-accent-light);
}

/* Data Table */
.blog-article__data-table {
  margin: 32px 0;
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid var(--color-border);
}

.blog-article__data-table table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
}

.blog-article__data-table thead {
  background: rgba(249, 115, 22, 0.06);
}

.blog-article__data-table th {
  padding: 14px 20px;
  text-align: left;
  font-weight: 600;
  color: var(--color-accent-light);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 1px;
  border-bottom: 1px solid var(--color-border);
}

.blog-article__data-table td {
  padding: 14px 20px;
  color: #F0F0F0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.blog-article__data-table tr:last-child td {
  border-bottom: none;
  font-weight: 600;
  color: var(--color-text-primary);
}

.blog-article__data-table tbody tr:hover {
  background: rgba(249, 115, 22, 0.03);
}

/* FAQ Section */
.blog-article__faq {
  margin: 32px 0;
}

.blog-article__faq-item {
  border: 1px solid var(--color-border);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.blog-article__faq-item[open] {
  border-color: rgba(249, 115, 22, 0.25);
  background: rgba(249, 115, 22, 0.02);
}

.blog-article__faq-item summary {
  padding: 20px 24px;
  font-family: var(--font-primary);
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color 0.3s ease;
}

.blog-article__faq-item summary::-webkit-details-marker {
  display: none;
}

.blog-article__faq-item summary::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--color-accent-primary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
  margin-left: 16px;
}

.blog-article__faq-item[open] summary::after {
  content: '−';
}

.blog-article__faq-item summary:hover {
  color: var(--color-accent-light);
}

.blog-article__faq-item p {
  padding: 0 24px 20px;
  font-size: var(--font-size-base) !important;
  color: var(--color-text-secondary) !important;
  line-height: 1.7 !important;
  margin: 0 !important;
}

/* CTA Box */
.blog-article__cta-box {
  margin: 48px 0 0;
  padding: 32px;
  background: linear-gradient(135deg, rgba(249, 115, 22, 0.06) 0%, rgba(249, 115, 22, 0.04) 100%);
  border: 1px solid rgba(249, 115, 22, 0.18);
  border-radius: 16px;
  text-align: center;
}

.blog-article__cta-box p {
  font-size: var(--font-size-lg) !important;
  color: var(--color-text-primary) !important;
  margin-bottom: 16px !important;
}

.blog-article__cta-box .btn--primary {
  display: inline-block;
  padding: 14px 36px;
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: #ffffff;
  background: var(--color-gradient-accent);
  border: none;
  border-radius: 100px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(249, 115, 22, 0.25);
}

.blog-article__cta-box .btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(249, 115, 22, 0.40);
}

/* ======== NEWSLETTER SECTION ======== */
.blog-newsletter {
  padding: 80px 0;
  background: var(--color-bg-secondary);
}

.blog-newsletter__inner {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
  padding: 48px 40px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.3);
  position: relative;
  overflow: hidden;
}

.blog-newsletter__inner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-gradient-accent);
}

.blog-newsletter__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-3xl);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-primary);
  margin-bottom: 12px;
}

.blog-newsletter__desc {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 28px;
}

.blog-newsletter__form {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
}

.blog-newsletter__form input {
  flex: 1;
  padding: 14px 20px;
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  outline: none;
  transition: border-color 0.3s ease;
}

.blog-newsletter__form input:focus {
  border-color: var(--color-accent-primary);
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.08);
}

.blog-newsletter__form input::placeholder {
  color: var(--color-text-muted);
}

.blog-newsletter__form .btn--primary {
  flex-shrink: 0;
  padding: 14px 28px;
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: #ffffff;
  background: var(--color-gradient-accent);
  border: none;
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(249, 115, 22, 0.20);
}

.blog-newsletter__form .btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(249, 115, 22, 0.35);
}

.blog-newsletter__disclaimer {
  font-family: var(--font-primary);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin: 0;
}

/* ======== RESPONSIVE: TABLET ======== */
@media (max-width: 768px) {
  .blog-hero {
    padding: 140px 0 60px;
  }

  .blog-topics__bar {
    gap: 6px;
    padding: 12px 0;
  }

  .blog-topics__tag {
    padding: 6px 14px;
    font-size: var(--font-size-xs);
  }

  .blog-article {
    padding: 48px 0;
  }

  .blog-article__body {
    max-width: 100%;
  }

  .blog-article__highlight-box {
    padding: 24px;
  }

  .blog-article__quote {
    padding: 24px 24px 24px 32px;
  }

  .blog-article__data-table th,
  .blog-article__data-table td {
    padding: 10px 14px;
    font-size: var(--font-size-sm);
  }

  .blog-newsletter__inner {
    padding: 32px 24px;
  }

  .blog-newsletter__form {
    flex-direction: column;
  }

  .blog-newsletter__form input,
  .blog-newsletter__form .btn--primary {
    width: 100%;
  }
}

/* ======== RESPONSIVE: MOBILE ======== */
@media (max-width: 480px) {
  .blog-hero {
    padding: 120px 0 40px;
  }

  .blog-hero__subtitle {
    font-size: var(--font-size-base);
  }

  .blog-article {
    padding: 32px 0;
  }

  .blog-article__author {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .blog-article__lede {
    font-size: var(--font-size-lg) !important;
    padding-left: 16px;
  }

  .blog-article__quote::before {
    font-size: 50px;
  }

  .blog-article__faq-item summary {
    padding: 16px 18px;
    font-size: var(--font-size-base);
  }

  .blog-article__cta-box {
    padding: 24px;
  }
}

/* ======== ANIMATIONS ======== */
.blog-article {
  opacity: 1;
  transform: translateY(0);
}

/* Topic filter animation */
.blog-article.blog-article--hidden {
  display: none;
}

/* ======================================================
   BLOG CARD INDEX - Search & Card Grid
   ====================================================== */

/* --- Blog Search Bar --- */
.blog-search {
  position: relative;
  z-index: 1;
  padding: 24px 0 8px;
  background: var(--color-bg-primary);
}

.blog-search__wrap {
  position: relative;
  max-width: 520px;
  margin: 0 auto;
}

.blog-search__icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
}

.blog-search__input {
  width: 100%;
  padding: 14px 20px 14px 48px;
  border-radius: 100px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  color: var(--color-text-primary);
  font-family: var(--font-primary);
  font-size: var(--font-size-sm);
  transition: all 0.3s ease;
}

.blog-search__input::placeholder {
  color: var(--color-text-muted);
}

.blog-search__input:focus {
  outline: none;
  border-color: var(--color-accent-primary);
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.12);
}

/* --- Blog Card Grid --- */
.blog-cards {
  position: relative;
  z-index: 1;
  padding: 32px 0 48px;
}

.blog-cards__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

/* --- Blog Card --- */
.blog-card {
  display: flex;
  flex-direction: column;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: all 0.35s ease;
  cursor: pointer;
}

.blog-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-border-hover);
  box-shadow:
    0 12px 40px rgba(0, 0, 0, 0.35),
    0 0 0 1px rgba(249, 115, 22, 0.10);
}

.blog-card__img {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--color-bg-tertiary);
}

.blog-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.blog-card__body {
  padding: 20px 24px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.blog-card__category {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-accent-primary);
  margin-bottom: 10px;
}

.blog-card__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text-primary);
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card__excerpt {
  font-size: var(--font-size-sm);
  color: #E0E0E0;
  line-height: 1.6;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}

.blog-card__meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--color-text-secondary);
  padding-top: 14px;
  border-top: 1px solid var(--color-border);
  flex-wrap: wrap;
}

.blog-card__avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
}

.blog-card__meta-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--color-text-muted);
  flex-shrink: 0;
}

/* --- Card Animation --- */
@keyframes blogCardFadeIn {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.blog-card {
  animation: blogCardFadeIn 0.6s ease forwards;
}

.blog-card:nth-child(1) { animation-delay: 0ms; }
.blog-card:nth-child(2) { animation-delay: 80ms; }
.blog-card:nth-child(3) { animation-delay: 160ms; }
.blog-card:nth-child(4) { animation-delay: 240ms; }
.blog-card:nth-child(5) { animation-delay: 320ms; }
.blog-card:nth-child(6) { animation-delay: 400ms; }
.blog-card:nth-child(7) { animation-delay: 480ms; }

.blog-card--hidden {
  display: none !important;
}

/* --- Empty State --- */
.blog-cards__empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 0;
  color: var(--color-text-secondary);
}

.blog-cards__empty-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  opacity: 1;
}

.blog-cards__empty-text {
  font-size: var(--font-size-lg);
  margin-bottom: 8px;
}

/* --- Responsive Card Grid --- */
@media (max-width: 1024px) {
  .blog-cards__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .blog-cards__grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .blog-card__body {
    padding: 16px 18px 20px;
  }
}