/********************
 * HERO SECTION
 ********************/
.hero {
  position: relative;
  min-height: 900px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 0 100px;
  overflow: hidden;
  background: linear-gradient(180deg, #0A1628 0%, #0F2240 40%, #1a3a5c 70%, #0d2847 100%);
}

/* Subtle grid overlay */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background-image: radial-gradient(circle, #00D4AA 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero-tag {
  display: inline-block;
  font-size: var(--font-size-caption);
  font-weight: var(--font-weight-medium);
  color: var(--color-accent-cyan);
  margin-bottom: 24px;
}

.hero-title {
  font-size: 36px;
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  line-height: 1.25;
  margin-bottom: 40px;
  margin-top: 0;
}

.hero-title .accent {
  color: var(--color-accent-cyan);
}

.hero-subtitle {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.75;
  margin-bottom: 48px;
  max-width: 672px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-cta .btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--color-accent-cyan);
  color: #0A1628;
  padding: 12px 24px;
  border-radius: 6px;
  font-size: 14px;
}

.hero-cta .btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-color: rgba(255, 255, 255, 0.3);
  padding: 12px 24px;
  border-radius: 6px;
  font-size: 14px;
}

/********************
 * CORE VALUES (Light Background)
 ********************/
.core-values {
  padding: var(--section-gap) 0;
  background-color: #E8ECF0;
}

.core-values .section-title {
  color: #0F172A;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.value-card {
  background-color: #ffffff;
  border-radius: var(--radius-md);
  padding: 40px 32px;
  text-align: center;
  border: 1px solid #CBD5E1;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.value-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.value-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.value-card:nth-child(1) .value-icon { background-color: rgba(249, 115, 22, 0.1); }
.value-card:nth-child(2) .value-icon { background-color: rgba(59, 130, 246, 0.1); }
.value-card:nth-child(3) .value-icon { background-color: rgba(0, 212, 170, 0.1); }
.value-card:nth-child(4) .value-icon { background-color: rgba(168, 85, 247, 0.1); }

.value-icon svg {
  width: 24px;
  height: 24px;
}

.value-title {
  font-size: 18px;
  font-weight: var(--font-weight-bold);
  color: #0F172A;
  margin-bottom: 12px;
}

.value-desc {
  font-size: var(--font-size-body-sm);
  color: #475569;
  line-height: 1.6;
}

/********************
 * PRODUCT MATRIX (Light Background)
 ********************/
.product-matrix {
  padding: var(--section-gap) 0;
  background-color: #E8ECF0;
}

.product-matrix .section-title {
  color: #0F172A;
}

/* Product Cards - Transparent background */
.product-card {
  background-color: transparent;
  border-radius: var(--radius-lg);
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 80px;
  border: none;
  overflow: hidden;
}

.product-card:last-child {
  margin-bottom: 0;
}

/* Video area */
.product-card .product-visual {
  background-color: #F8FAFC;
  min-height: 400px;
  height: 100%;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  overflow: hidden;
}

.product-card .product-visual video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Text area */
.product-card .product-info {
  padding: 24px 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Cyan accent bar before title */
.product-card .product-title {
  position: relative;
  padding-left: 16px;
  border-left: 4px solid #00D4AA;
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-bold);
  color: #0F172A;
  margin-bottom: 16px;
}

/* Light tag style */
.product-card .product-feature-tag {
  background-color: #FFFFFF;
  border: 1px solid #E2E8F0;
  color: #64748B;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: var(--font-size-caption);
}

/* Dark text colors */
.product-card .product-desc {
  color: #475569;
  font-size: var(--font-size-body);
  line-height: 1.7;
  margin-bottom: 24px;
}

.product-card .product-cta {
  color: #00D4AA;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-body);
}

.product-card .product-features {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.product-tag {
  display: inline-block;
  font-size: var(--font-size-caption);
  font-weight: var(--font-weight-medium);
  color: #3B82F6;
  margin-bottom: 12px;
}

.product-card:nth-child(2) .product-tag { color: #3B82F6; }
.product-card:nth-child(3) .product-tag { color: #A855F7; }

.product-title {
  font-size: var(--font-size-h4);
  font-weight: var(--font-weight-bold);
  color: #0F172A;
  margin-bottom: 16px;
}

.product-desc {
  font-size: var(--font-size-body);
  color: #475569;
  line-height: 1.7;
  margin-bottom: 24px;
}

.product-features {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.product-feature-tag {
  padding: 6px 14px;
  background-color: #1E293B;
  border-radius: 20px;
  font-size: var(--font-size-caption);
  color: #94A3B8;
}

.product-card:nth-child(1) .product-cta { color: #3B82F6; }
.product-card:nth-child(2) .product-cta { color: #00D4AA; }
.product-card:nth-child(3) .product-cta { color: #00D4AA; }

.product-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-body);
  transition: gap var(--transition-fast);
}

.product-cta:hover {
  gap: 10px;
}

.product-cta-arrow {
  transition: transform var(--transition-fast);
}

.product-cta:hover .product-cta-arrow {
  transform: translateX(4px);
}

.product-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 280px;
  background: linear-gradient(135deg, rgba(255,255,255,0.02) 0%, rgba(255,255,255,0.05) 100%);
  border-radius: var(--radius-md);
}

.product-visual svg {
  width: 200px;
  height: 200px;
  opacity: 0.8;
}

/********************
 * TECH ADVANTAGES
 ********************/
.tech-advantages {
  padding: var(--section-gap) 0;
  background-color: #E8ECF0;
}

.tech-advantages .section-title {
  color: #0F172A;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.tech-item {
  text-align: center;
  padding: 32px;
}

.tech-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(0, 212, 170, 0.1);
  border-radius: var(--radius-md);
}

.tech-icon svg {
  width: 28px;
  height: 28px;
  color: var(--color-accent-cyan);
}

.tech-title {
  font-size: 20px;
  font-weight: var(--font-weight-bold);
  color: #0F172A;
  margin-bottom: 12px;
}

.tech-desc {
  font-size: var(--font-size-body-sm);
  color: #475569;
  line-height: 1.6;
}

/********************
 * USE CASES (Tabs)
 ********************/
.use-cases {
  padding: var(--section-gap) 0;
  background-color: #E8ECF0;
}

.use-cases .section-title {
  color: #0F172A;
}

.tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 10px 24px;
  border-radius: 30px;
  font-size: var(--font-size-body-sm);
  font-weight: var(--font-weight-medium);
  color: #64748B;
  border: 1px solid #CBD5E1;
  background: transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: var(--touch-target-min);
}

.tab-btn:hover {
  background-color: #FFFFFF;
}

.tab-btn.active {
  background-color: #FFFFFF;
  color: #0F172A;
  border-color: var(--color-accent-cyan);
}

.tab-content {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 200ms ease, transform 200ms ease;
}

.tab-content.active {
  opacity: 1;
  transform: translateY(0);
}

.tab-content h3 {
  font-size: 24px;
  margin-bottom: 16px;
  color: #0F172A;
}

.tab-content p {
  font-size: var(--font-size-body);
  color: #475569;
  line-height: 1.7;
}

/********************
 * CLIENT CASES
 ********************/
.client-cases {
  padding: var(--section-gap) 0;
  background-color: #E8ECF0;
}

.client-cases .section-title {
  color: #0F172A;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}

.stat-card {
  background-color: #FFFFFF;
  border: 1px solid #CBD5E1;
  border-top: 2px solid var(--color-accent-cyan);
  border-radius: var(--radius-md);
  padding: 40px 32px;
  text-align: center;
  transition: border-color var(--transition-normal), transform var(--transition-normal);
}

.stat-card:hover {
  border-color: var(--color-accent-cyan);
  transform: translateY(-4px);
}

.stat-number {
  font-size: 48px;
  font-weight: var(--font-weight-bold);
  color: var(--color-accent-cyan);
  line-height: 1;
  margin-bottom: 12px;
  font-family: var(--font-family-en);
}

.stat-label {
  font-size: 18px;
  font-weight: var(--font-weight-bold);
  color: #0F172A;
  margin-bottom: 12px;
}

.stat-desc {
  font-size: var(--font-size-body-sm);
  color: #475569;
  line-height: 1.6;
}

.client-logos {
  text-align: center;
}

.client-logos-title {
  font-size: var(--font-size-caption);
  color: #64748B;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 32px;
}

.logo-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 48px;
  flex-wrap: wrap;
}

.logo-placeholder {
  width: 120px;
  height: 48px;
  background-color: #FFFFFF;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #64748B;
  font-size: var(--font-size-caption);
  transition: background-color var(--transition-fast);
}

.logo-placeholder:hover {
  background-color: #F1F5F9;
}

/********************
 * RESPONSIVE
 ********************/
@media (min-width: 640px) {
  .hero-title {
    font-size: 48px;
  }
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 60px;
  }

  .hero-subtitle {
    font-size: 18px;
  }
}

@media (min-width: 1024px) {
  .hero-title {
    font-size: 72px;
  }
}

@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-cta {
    justify-content: center;
  }

  .hero-visual {
    display: none;
  }

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

  .product-card {
    grid-template-columns: 1fr;
    padding: 32px;
  }

  .product-card:nth-child(even) .product-visual {
    order: 0;
  }

  .product-visual {
    min-height: 200px;
  }

  .tech-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hero {
    padding: 100px 0 60px;
    min-height: auto;
  }

  .values-grid {
    grid-template-columns: 1fr;
  }

  .product-card {
    padding: 24px;
  }

  .product-features {
    gap: 8px;
  }

  .tabs {
    gap: 8px;
  }

  .tab-btn {
    padding: 8px 16px;
    font-size: var(--font-size-caption);
  }

  .stat-number {
    font-size: 36px;
  }

  .logo-row {
    gap: 24px;
  }
}