/* ================================================
   Section-Specific Styles
   Hero, Products, Trust, Demo, Solutions, About, Contact
   ================================================ */

/* ========== Hero Section ========== */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #F5F5F7 0%, #FFFFFF 100%);
  padding-top: 72px; /* Account for fixed navbar */
  overflow: hidden;
}

.hero-container {
  position: relative;
  z-index: var(--z-content);
  text-align: center;
}

.hero-content {
  max-width: 900px;
  margin: 0 auto;
}

.hero-title {
  margin-bottom: var(--space-lg);
  /* Word-by-word animation handled by JS */
}

.hero-subtitle {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2xl);
  /* Word-by-word animation handled by JS */
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s var(--ease-out) 0.4s both;
}

.hero-visual {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: var(--z-base);
  opacity: 0.3;
  pointer-events: none;
}

.hero-gradient {
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 113, 227, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.3;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.1);
    opacity: 0.5;
  }
}

/* ========== Products Section ========== */

.products-section {
  background-color: var(--color-bg-primary);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-xl);
}

/* Product card hover effects with accent colors */
.product-card[data-product="openfoam"]:hover {
  border: 2px solid var(--color-accent-cyan);
}

.product-card[data-product="fea"]:hover {
  border: 2px solid var(--color-accent-purple);
}

.product-card[data-product="turbulence"]:hover {
  border: 2px solid var(--color-accent-orange);
}

/* ========== Trust Section ========== */

.trust-section {
  background-color: var(--color-bg-secondary);
}

.trust-content {
  max-width: 800px;
  margin: var(--space-2xl) auto;
}

.trust-content p {
  font-size: var(--font-size-body-lg);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-lg);
}

.trust-table {
  margin-top: var(--space-2xl);
  background-color: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
}

/* ========== Demo Section ========== */

.demo-section {
  background-color: var(--color-bg-primary);
}

.demo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: var(--space-xl);
}

.demo-embed {
  margin-top: var(--space-3xl);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

/* ========== Solutions Section ========== */

.solutions-section {
  background-color: var(--color-bg-secondary);
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}

/* ========== About Section ========== */

.about-section {
  background-color: var(--color-bg-primary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  margin-bottom: var(--space-3xl);
}

.about-content p {
  font-size: var(--font-size-body-lg);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-lg);
}

.about-media {
  margin-top: var(--space-2xl);
}

.media-marquee {
  overflow: hidden;
  margin-top: var(--space-md);
  padding: var(--space-md) 0;
  mask-image: linear-gradient(
    to right,
    transparent,
    black 10%,
    black 90%,
    transparent
  );
  -webkit-mask-image: linear-gradient(
    to right,
    transparent,
    black 10%,
    black 90%,
    transparent
  );
}

.media-marquee-content {
  display: flex;
  gap: var(--space-xl);
  animation: marquee-scroll 48s linear infinite;
  will-change: transform;
}

.media-marquee:hover .media-marquee-content {
  animation-play-state: paused;
}

.media-logo {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-body-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  white-space: nowrap;
  transition: all var(--duration-normal) var(--ease-in-out);
}

.media-logo:hover {
  background-color: var(--color-accent-blue);
  color: var(--color-text-inverse);
  transform: translateY(-2px);
}

.about-image-placeholder {
  background-color: var(--color-bg-tertiary);
  border-radius: var(--radius-lg);
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-values {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.value-card {
  padding: var(--space-xl);
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
}

.value-card h3 {
  font-size: var(--font-size-h4);
  margin-bottom: var(--space-md);
  color: var(--color-accent-blue);
}

.value-card p {
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
}

/* ========== Contact Section ========== */

.contact-section {
  background-color: var(--color-bg-secondary);
}

.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
  margin: var(--space-3xl) 0;
  text-align: center;
}

.contact-item h4 {
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-sm);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.contact-item a {
  font-size: var(--font-size-body-lg);
  color: var(--color-text-primary);
}

.contact-item p {
  font-size: var(--font-size-body-lg);
  color: var(--color-text-primary);
}

.contact-cta {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--space-2xl);
}

/* ========== Responsive Adjustments ========== */

@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }

  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .hero {
    min-height: 90vh;
  }

  .hero-title {
    font-size: 40px;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .hero-cta .btn {
    width: 100%;
    max-width: 300px;
  }

  .products-grid,
  .demo-grid,
  .solutions-grid,
  .about-values {
    grid-template-columns: 1fr;
  }

  .contact-info {
    grid-template-columns: 1fr;
  }

  .footer-links {
    grid-template-columns: 1fr;
  }

  .publications-grid {
    padding-left: var(--space-lg);
  }
}

@media (max-width: 480px) {
  .publications-grid {
    padding-left: var(--space-md);
  }

  .publication-card {
    padding-left: var(--space-md);
  }

  .publication-title {
    font-size: var(--font-size-body-sm);
  }
}

/* ========== Publications Section ========== */

.publications-section {
  background-color: var(--color-bg-primary);
}

.publications-grid {
  max-width: 900px;
  margin: var(--space-xl) auto 0;
  position: relative;
  padding-left: 32px;
  display: grid;
  gap: 20px;
}

/* Timeline line */
.publications-grid::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(to bottom,
    var(--color-accent-blue) 0%,
    var(--color-accent-cyan) 50%,
    var(--color-accent-purple) 100%);
}

.publication-card {
  position: relative;
  padding: 0;
  transition: all var(--duration-normal) var(--ease-in-out);
  display: grid;
  gap: 4px;
}

/* Timeline dot */
.publication-card::before {
  content: '';
  position: absolute;
  left: -36px;
  top: 4px;
  width: 8px;
  height: 8px;
  background-color: var(--color-accent-blue);
  border-radius: 50%;
  border: 2px solid var(--color-bg-primary);
  transition: all var(--duration-normal) var(--ease-in-out);
}

.publication-card:hover::before {
  transform: scale(1.4);
  box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.15);
}

.publication-tag {
  display: inline-block;
  padding: 2px 10px;
  font-size: 11px;
  font-weight: var(--font-weight-semibold);
  background-color: var(--color-bg-tertiary);
  color: var(--color-accent-blue);
  border-radius: var(--radius-full);
  width: fit-content;
}

.publication-title {
  font-size: 15px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  line-height: 1.5;
  margin: 0;
  transition: color var(--duration-fast) var(--ease-in-out);
}

.publication-card:hover .publication-title {
  color: var(--color-accent-blue);
}

.publication-meta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.publication-journal {
  font-style: italic;
  font-weight: var(--font-weight-medium);
}

.publication-year {
  color: var(--color-text-tertiary);
}

.publication-year::before {
  content: '•';
  margin: 0 6px 0 0;
}

.publication-link {
  color: var(--color-accent-blue);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  font-size: 13px;
  transition: opacity var(--duration-fast) var(--ease-in-out);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.publication-link:hover {
  opacity: 0.7;
}