/* Landing page styles */
  h1 {
    margin-bottom: 1.5rem;
    color: var(--strike-blue);
    text-align: center;
  }

/* Landing header — transparent over hero, fades in on scroll */

.header--landing {
  position: fixed;
  width: 100%;
  background: transparent;
  border-bottom-color: transparent;
}

.header--landing::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-bg-nav);
  border-bottom: 1px solid var(--color-border);
  opacity: var(--header-bg-opacity, 0);
  pointer-events: none;
  z-index: -1;
}

.header--landing .site-title-trigger {
  opacity: var(--header-bg-opacity, 0);
  transition: opacity 0.15s;
}

.header--landing .sidebar-toggle {
  display: none !important;
}

.header--landing .social-link,
.header--landing .theme-toggle,
.header--landing .header-search-toggle,
.header--landing .header-nav-link,
.header--landing .header-nav-toggle {
  transition: color 0.3s ease;
}

.header--landing:not(.header--solid) .social-link,
.header--landing:not(.header--solid) .theme-toggle,
.header--landing:not(.header--solid) .header-search-toggle,
.header--landing:not(.header--solid) .header-nav-link,
.header--landing:not(.header--solid) .header-nav-toggle {
  color: #94a3b8;
}

.header--landing:not(.header--solid) .social-link:hover,
.header--landing:not(.header--solid) .theme-toggle:hover,
.header--landing:not(.header--solid) .header-search-toggle:hover,
.header--landing:not(.header--solid) .header-nav-link:hover,
.header--landing:not(.header--solid) .header-nav-toggle:hover {
  color: #f8fafc;
}

.header--landing:not(.header--solid) .header-nav-link:hover {
  background: rgba(255,255,255,0.08);
}

/* Header nav links */

.header-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.header-nav-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.375rem 0.75rem;
  border-radius: 0.375rem;
  transition: color 0.15s, background 0.15s;
}

.header-nav-link:hover {
  color: var(--color-text);
  background: rgba(0,0,0,0.05);
  text-decoration: none;
}

:root[data-theme="dark"] .header-nav-link:hover {
  background: rgba(255,255,255,0.08);
}

/* Mobile nav toggle — hidden on desktop */
.header-nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: 0.25rem;
  align-items: center;
}

@media (max-width: 768px) {
  .header-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--color-bg-nav);
    border-bottom: 1px solid var(--color-border);
    padding: 0.5rem 0;
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
    z-index: 100;
  }

  .header-nav.open {
    display: flex;
  }

  .header-nav-link {
    padding: 0.75rem 2rem;
    border-radius: 0;
  }

  .header-nav-toggle {
    display: flex;
  }

  /* Transparent header: mobile dropdown needs its own dark bg */
  .header--landing:not(.header--solid) .header-nav {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(12px);
    border-bottom-color: rgba(255,255,255,0.1);
  }
}

.landing-hero {
  background: linear-gradient(0deg, #0f172a 0%, #182537 50%, #0f172a 100%);
  color: #f8fafc;
  padding: 3rem 2rem;
  text-align: center;

  .tagline {
    font-size: 1.25rem;
    color: #94a3b8;
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
  }
}

/* Products section */

.landing-body {
  padding: 5rem calc(max(2rem, (100% - 1100px) / 2));
}


.section-body {
  max-width: 900px;
  margin: 0 auto;
}

.welcome-body {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

@media (min-width: 768px) {
  .welcome-body {
    flex-direction: row;
    align-items: flex-start;
  }
  .welcome-body .one-side {
    max-width: calc(50% - 1.25rem);
  }
}

.welcome-body p {
  margin-bottom: 0.5em;
  color: var(--color-text-secondary);
}

.welcome-body .highlight-links a {
  color: var(--strike-blue);
  font-weight: 600;
  text-decoration: none;
  transition: color 0.3s;
}

.welcome-body .highlight-links a:hover {
  border-bottom: 2px dotted var(--strike-blue);
  color: color-mix(in oklab, var(--strike-blue) 80%, black 20%);
}

:root[data-theme="dark"] .welcome-body p {
  color: #cbd5e1;
}

:root[data-theme="dark"] .welcome-body .highlight-links a {
  color: #60a5fa;
}

:root[data-theme="dark"] .welcome-body .highlight-links a:hover {
  color: #93bbfd;
  border-bottom-color: #60a5fa;
}

.landing-section {
  width: 100%;
  padding: 0;
  margin-bottom: 6rem;
  .section-header {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    margin-bottom: 2rem;
    display: flex;
    align-items: baseline;
    gap: 2rem;
    h1,h2 {
      text-align: left;
      padding: 1.5rem 0;
      margin: 0;
    }
    h1 {
      color: color-mix(in oklab, var(--strike-blue) 30%, white 70%) ;
      padding-left: 2rem;
      min-width: 18rem;
      background-color: var(--strike-blue);
    }
    h2 {
      color: color-mix(in oklab, var(--strike-blue) 80%, white 20%) ;
    }
    .split-wide {
      width: 100%;
      display: flex;
      justify-content: space-between;
      padding-right: 2rem;
      align-items: baseline;
    }
  }

  .lab-notes-header {
    display: flex;
    align-items: baseline;
    gap: 2rem;
    margin-top: -3rem;
    margin-bottom: .5rem;
    h1,h2 {
      text-align: left;
      padding: 1.5rem 0;
      margin: 0;
    }

    h1 {
      padding-left: 2rem;
      min-width: 12rem;
      a {
        font-size: 80%;
        text-decoration: none;
        &:hover {
          border-bottom: 2px dotted var(--strike-blue);
        }
        color: color-mix(in oklab, var(--strike-blue) 50%, white 50%) ;
      }
    }
    h2 {
      font-size: 100%;
      font-weight: 400;
      color: color-mix(in oklab, var(--strike-blue) 80%, white 20%) ;
    }
  }
}

.products-section h2 {
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 3rem;
  color: #0f172a;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 6rem;

}

/* Product cards */

.product-card {
  position: relative;
  display: flex;
  flex-direction: column;
  border: 1px solid #e2e8f0;
  border-radius: 0.75rem;
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  background: #fff;
  transition:
    transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
    border-color 0.3s ease,
    box-shadow 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:not(.has-image) {
  padding: 1.5rem;
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: #2563eb;
  box-shadow:
    0 8px 24px rgba(37, 99, 235, 0.12),
    0 0 0 1px rgba(37, 99, 235, 0.08);
  text-decoration: none;
}

/* Shimmer sweep */
.product-card-sheen {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    transparent 38%,
    rgba(37, 99, 235, 0.06) 46%,
    rgba(37, 99, 235, 0.10) 50%,
    rgba(37, 99, 235, 0.06) 54%,
    transparent 62%
  );
  transform: translateX(-100%);
  pointer-events: none;
  transition: none;
  z-index: 1;
}

.product-card:hover .product-card-sheen {
  transform: translateX(100%);
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Media area (top of card) */
.product-card-media {
  width: 100%;
  line-height: 0;
}

.product-card-media img {
  width: 100%;
  height: auto;
  display: block;
  transition: opacity 0.3s ease;
}

.product-card:hover .product-card-media img {
  opacity: 0.92;
}

/* Body area (below image) */
.product-card-body {
  position: relative;
  padding: 0.75rem 1.25rem 1.25rem;

}

.lead {
  font-weight: 600;
  margin-bottom: 0.5em;
}

/* Icon */
.product-icon-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  flex-shrink: 0;
  border-radius: 0.375rem;
  background: #eff4ff;
  color: #2563eb;
  transition:
    background 0.3s ease,
    color 0.3s ease;
}

.product-card:hover .product-icon-wrap {
  background: #2563eb;
  color: #fff;
}

.product-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 0.4rem;
  color: #0f172a;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.product-card p {
  color: #475569;
  font-size: 0.9rem;
  line-height: 1.55;
  margin: 0;
}

/* Arrow hint */
.product-card-arrow {
  position: absolute;
  bottom: 1.25rem;
  right: 1.25rem;
  display: flex;
  align-items: center;
  color: #2563eb;
  opacity: 0;
  transform: translateX(-6px);
  transition:
    opacity 0.25s ease,
    transform 0.25s ease;
}

.product-card:hover .product-card-arrow {
  opacity: 0.7;
  transform: translateX(0);
}


/* Video cards */

.video-card {
  cursor: pointer;
  font: inherit;
  text-align: left;
}

.video-card-thumb {
  position: relative;
}

.video-card-thumb img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  opacity: 0.8;
  transition: opacity 0.2s, transform 0.2s;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.4));
}

.video-card:hover .video-play-btn {
  opacity: 1;
  transform: scale(1.1);
}

.video-highlight {
  color: var(--strike-blue);
  font-weight: 600;
  font-size: 0.85rem;
}

/* Video modal */

.video-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.video-modal[hidden] {
  display: none;
}

.video-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  animation: modal-fade-in 0.2s ease;
}

@keyframes modal-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.video-modal-content {
  position: relative;
  width: 90vw;
  max-width: 960px;
  animation: modal-scale-in 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes modal-scale-in {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.video-modal-close {
  position: absolute;
  top: -2.5rem;
  right: 0;
  background: none;
  border: none;
  color: #94a3b8;
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
  padding: 0.25rem 0.5rem;
  transition: color 0.2s;
}

.video-modal-close:hover {
  color: #f8fafc;
}

.video-modal-player {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 */
  border-radius: 0.75rem;
  overflow: hidden;
  background: #000;
}

.video-modal-player iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* Features section */

.features-section {
  padding: 5rem 2rem;
  background: #f8fafc;
}

.features-section h2 {
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 3rem;
  color: #0f172a;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.feature-item {
  text-align: center;
  padding: 1.5rem;
}

.feature-icon {
  color: #2563eb;
  margin-bottom: 0.75rem;
}

.feature-item h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: #0f172a;
}

.feature-item p {
  color: #475569;
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Blog cards — horizontal layout, 2 per row */

.blog-cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.blog-card-landing {
  display: flex;
  flex-direction: column;
  border: 1px solid #e2e8f0;
  border-radius: 0.75rem;
  overflow: hidden;
  text-decoration: none;
  color: #0f172a;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.blog-card-landing:hover {
  border-color: #2563eb;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  transform: translateY(-2px);
  text-decoration: none;
}

.blog-card-landing-image {
  width: 100%;
  height: 160px;
  overflow: hidden;
}

.blog-card-landing-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blog-card-landing-body {
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.blog-card-landing-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-bottom: 0.35rem;
}

.tag-pill-sm {
  display: inline-block;
  background: #1e3a5f;
  color: #93b4f4;
  border-radius: 9999px;
  padding: 0.1rem 0.5rem;
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  text-transform: capitalize;
}

.blog-card-landing h3 {
  font-size: 0.9rem;
  font-weight: 600;
  margin: 0 0 0.25rem;
  line-height: 1.3;
}

.blog-card-landing-excerpt {
  margin: 0 0 0.5rem;
  font-size: 0.775rem;
  line-height: 1.45;
  color: #64748b;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card-landing-footer {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.7rem;
  color: #94a3b8;
  margin-top: auto;
}

.blog-card-landing-footer img {
  width: 1.125rem;
  height: 1.125rem;
  border-radius: 50%;
  object-fit: cover;
}

.blog-card-landing-sep {
  opacity: 0.5;
}

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

/* CTA section */

.cta-section {
  padding: 5rem 2rem;
  text-align: center;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: #f8fafc;
}

.cta-section h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.cta-section p {
  color: #94a3b8;
  margin-bottom: 2rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* Dark mode */
:root[data-theme="dark"] {
  .landing-body {
    color: #f1f5f9;
  }

  .products-section h2,
  .features-section h2 {
    color: #f1f5f9;
  }

  .product-card {
    border-color: #334155;
    background: #1e293b;
  }

  .product-card:hover {
    border-color: #60a5fa;
    box-shadow:
      0 8px 28px rgba(96, 165, 250, 0.12),
      0 0 0 1px rgba(96, 165, 250, 0.1);
  }

  .product-card-sheen {
    background: linear-gradient(
      105deg,
      transparent 38%,
      rgba(96, 165, 250, 0.06) 46%,
      rgba(96, 165, 250, 0.10) 50%,
      rgba(96, 165, 250, 0.06) 54%,
      transparent 62%
    );
  }

  .product-icon-wrap {
    background: #1e3a5f;
    color: #60a5fa;
  }

  .product-card:hover .product-icon-wrap {
    background: #3b82f6;
    color: #fff;
  }

  .product-card h3 {
    color: #f1f5f9;
  }

  .product-card p {
    color: #94a3b8;
  }

  .product-card-arrow {
    color: #60a5fa;
  }

  .features-section {
    background: #0f172a;
  }

  .feature-icon {
    color: #60a5fa;
  }

  .feature-item h3 {
    color: #f1f5f9;
  }

  .feature-item p {
    color: #94a3b8;
  }

  .blog-card-landing {
    border-color: #334155;
    color: #f1f5f9;
  }

  .blog-card-landing:hover {
    border-color: #60a5fa;
    box-shadow: 0 4px 16px rgba(96, 165, 250, 0.12);
  }

  .blog-card-landing h3 {
    color: #f1f5f9;
  }

  .blog-card-landing-excerpt {
    color: #94a3b8;
  }

  .blog-card-landing-footer {
    color: #64748b;
  }

  .tag-pill-sm {
    background: #172554;
    color: #dbeafe;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .product-card,
  .product-icon-wrap,
  .product-card-arrow {
    transition: none !important;
    transform: none !important;
  }

  .product-card-sheen {
    display: none;
  }

  .product-card-arrow {
    opacity: 0.7;
  }
}