/* ==========================================================================
   Component Library for Serena Health Resources
   Reusable UI components with magazine-quality styling
   ========================================================================== */

/* ==========================================================================
   Article Card
   Magazine-style card with hover effect
   ========================================================================== */

.article-card {
  position: relative;
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.article-card__image-wrapper {
  position: relative;
  aspect-ratio: 3 / 2;
  overflow: hidden;
}

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

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

.article-card__content {
  padding: var(--space-md);
}

.article-card__title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: var(--leading-tight);
  color: var(--black);
  margin-bottom: var(--space-xs);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@media (min-width: 768px) {
  .article-card__title {
    font-size: 1.375rem;
  }
}

.article-card__title a {
  color: inherit;
  text-decoration: none;
}

.article-card__title a:hover {
  color: var(--accent-purple);
}

.article-card__excerpt {
  font-size: 1rem;
  line-height: var(--leading-normal);
  color: var(--gray-700);
  margin-bottom: var(--space-sm);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card__meta {
  font-size: var(--text-sm);
  color: var(--gray-500);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* ==========================================================================
   Category Badge
   Small pill shape, colored by category
   ========================================================================== */

.category-badge {
  display: inline-block;
  padding: 0.25em 0.75em;
  font-family: var(--font-accent);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

/* Position in article card */
.article-card .category-badge {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  z-index: 2;
}

/* Category color variants - solid backgrounds for better readability */
.category-badge--longevity {
  background: #d1fae5;
  color: #047857;
}

.category-badge--weight-loss {
  background: #fef3c7;
  color: #b45309;
}

.category-badge--performance {
  background: #fee2e2;
  color: #b91c1c;
}

.category-badge--sleep {
  background: #e0e7ff;
  color: #4338ca;
}

.category-badge--nutrition {
  background: #dcfce7;
  color: #15803d;
}

.category-badge--research {
  background: #ede9fe;
  color: #6d28d9;
}

.category-badge--delivery-methods {
  background: #fce7f3;
  color: #be185d;
}

/* ==========================================================================
   Product Showcase Minimal
   Two-column layout, editorial feel
   ========================================================================== */

.product-showcase-minimal {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  padding: var(--space-xl);
  background: var(--gradient-subtle);
  border-radius: var(--radius-xl);
}

@media (min-width: 768px) {
  .product-showcase-minimal {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

.product-showcase-minimal__image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.product-showcase-minimal__image img {
  max-width: 280px;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.15));
}

.product-showcase-minimal__content {
  text-align: center;
}

@media (min-width: 768px) {
  .product-showcase-minimal__content {
    text-align: left;
  }
}

.product-showcase-minimal__title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  margin-bottom: var(--space-sm);
}

.product-showcase-minimal__description {
  color: var(--gray-700);
  margin-bottom: var(--space-md);
}

/* ==========================================================================
   Product Hero Split
   Full-width split layout for homepage
   ========================================================================== */

.product-hero-split {
  display: grid;
  grid-template-columns: 1fr;
  min-height: 600px;
}

@media (min-width: 768px) {
  .product-hero-split {
    grid-template-columns: 45% 55%;
  }
}

.product-hero-split__image {
  background: var(--gradient-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
  order: 2;
}

@media (min-width: 768px) {
  .product-hero-split__image {
    order: 1;
  }
}

.product-hero-split__image img {
  max-width: 320px;
  filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.2));
}

.product-hero-split__content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-xl);
  order: 1;
}

@media (min-width: 768px) {
  .product-hero-split__content {
    order: 2;
    padding: var(--space-2xl);
  }
}

.product-hero-split__title {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-md);
}

@media (min-width: 768px) {
  .product-hero-split__title {
    font-size: var(--text-5xl);
  }
}

.product-hero-split__description {
  font-size: var(--text-lg);
  color: var(--gray-700);
  margin-bottom: var(--space-lg);
}

/* ==========================================================================
   Product Inline
   Sidebar-style product mention within articles
   ========================================================================== */

.product-inline {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md);
  margin: var(--space-lg) 0;
  background: var(--gray-100);
  border-left: 3px solid var(--accent-purple);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.product-inline__image {
  flex-shrink: 0;
  width: 80px;
}

.product-inline__image img {
  width: 100%;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.product-inline__content {
  flex: 1;
}

.product-inline__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.product-inline__description {
  font-size: var(--text-sm);
  color: var(--gray-700);
  margin-bottom: var(--space-xs);
}

.product-inline__link {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--accent-purple);
}

.product-inline__link:hover {
  color: var(--accent-pink);
}

/* ==========================================================================
   Pull Quote
   Large editorial quote styling
   ========================================================================== */

.pull-quote {
  margin: var(--space-xl) 0;
  padding-left: var(--space-md);
  border-left: 4px solid var(--accent-purple);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-style: italic;
  line-height: 1.4;
  color: var(--accent-purple);
}

.pull-quote cite {
  display: block;
  margin-top: var(--space-sm);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-style: normal;
  color: var(--gray-500);
}

/* ==========================================================================
   Info Box
   Highlighted information box for articles
   ========================================================================== */

.info-box {
  margin: var(--space-xl) 0;
  padding: var(--space-lg);
  background: var(--gradient-subtle);
  border-left: 4px solid var(--accent-purple);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.info-box__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--black);
}

.info-box p:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   Button
   Primary and secondary button styles
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875em 1.75em;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--white);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(123, 63, 157, 0.3);
  color: var(--white);
}

.btn-secondary {
  background: var(--white);
  color: var(--accent-purple);
  border: 2px solid var(--accent-purple);
}

.btn-secondary:hover {
  background: var(--accent-purple);
  color: var(--white);
}

.btn-ghost {
  background: transparent;
  color: var(--accent-purple);
  padding: 0.5em 0;
}

.btn-ghost:hover {
  color: var(--accent-pink);
}

/* ==========================================================================
   Header / Navigation
   Site header component
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: rgba(254, 253, 251, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-100);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.site-logo {
  height: 72px;
  max-width: 200px;
}

/* Mobile menu button */
.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.mobile-menu-btn svg {
  width: 24px;
  height: 24px;
  stroke: var(--gray-700);
}

@media (min-width: 768px) {
  .mobile-menu-btn {
    display: none;
  }
}

.site-nav {
  display: none;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .site-nav {
    display: flex;
  }
}

/* Mobile nav overlay */
.site-nav.mobile-open {
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--white);
  padding: var(--space-lg);
  gap: var(--space-md);
  z-index: 999;
}

.site-nav.mobile-open .site-nav__link {
  font-size: var(--text-lg);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--gray-100);
}

.site-nav__link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--gray-700);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.site-nav__link:hover,
.site-nav__link--active {
  color: var(--accent-purple);
}

/* ==========================================================================
   Footer
   Site footer component
   ========================================================================== */

.site-footer {
  background: var(--black);
  color: var(--gray-300);
  padding: var(--space-xl) 0;
}

.site-footer a {
  color: var(--gray-300);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--white);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.footer-about {
  color: var(--gray-300);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--space-xs);
}

.footer-links a {
  color: var(--gray-300);
  font-size: var(--text-sm);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    text-align: left;
  }
}

.footer-disclaimer {
  font-size: var(--text-xs);
  color: var(--gray-500);
  max-width: 500px;
}

.footer-copyright {
  font-size: var(--text-sm);
  color: var(--gray-500);
}

/* ==========================================================================
   Featured Article (Large Card)
   ========================================================================== */

.featured-card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  min-height: 400px;
}

.featured-card__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.featured-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 60%);
}

.featured-card__content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-lg);
  color: var(--white);
}

.featured-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: var(--white);
}

@media (min-width: 768px) {
  .featured-card__title {
    font-size: var(--text-3xl);
  }
}

.featured-card__excerpt {
  color: var(--gray-300);
  margin-bottom: var(--space-sm);
}

/* ==========================================================================
   Newsletter Signup
   ========================================================================== */

.newsletter {
  background: var(--gradient-subtle);
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  text-align: center;
}

.newsletter__title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  margin-bottom: var(--space-xs);
}

.newsletter__description {
  color: var(--gray-700);
  margin-bottom: var(--space-md);
}

.newsletter__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  max-width: 400px;
  margin: 0 auto;
}

@media (min-width: 640px) {
  .newsletter__form {
    flex-direction: row;
  }
}

.newsletter__input {
  flex: 1;
  padding: 0.875em 1.25em;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-full);
  font-size: var(--text-base);
}

.newsletter__input:focus {
  outline: none;
  border-color: var(--accent-purple);
}

/* ==========================================================================
   Author Card
   ========================================================================== */

.author-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.author-card__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
}

.author-card__info {
  display: flex;
  flex-direction: column;
}

/* ==========================================================================
   Breadcrumb
   ========================================================================== */

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--text-sm);
  color: var(--gray-500);
  margin-bottom: var(--space-md);
}

.breadcrumb a {
  color: var(--gray-500);
}

.breadcrumb a:hover {
  color: var(--accent-purple);
}

.breadcrumb__separator {
  color: var(--gray-300);
}

/* ==========================================================================
   Tags
   ========================================================================== */

.tag {
  display: inline-block;
  padding: 0.25em 0.75em;
  background: var(--gray-100);
  color: var(--gray-700);
  font-size: var(--text-sm);
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.tag:hover {
  background: var(--accent-purple);
  color: var(--white);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}