/**
 * Homepage Specific Styles - Tín Quang Group
 */

/* ==========================================================================
   1. Hero Section
   ========================================================================== */
.tq-hero {
  position: relative;
  width: 100%;
  min-height: 600px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: var(--color-on-secondary-fixed);
}

.hero-bg-container {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-bg-image {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  mix-blend-mode: luminosity;
  opacity: 0.4;
}

.hero-bg-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, var(--color-on-secondary-fixed) 0%, rgba(0, 27, 60, 0.85) 50%, rgba(0, 27, 60, 0.2) 100%);
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 680px;
  padding: var(--spacing-xl) 0;
}

.hero-title {
  font-family: var(--font-family-base);
  font-size: 48px;
  font-weight: 800;
  color: var(--color-on-secondary);
  line-height: 1.1;
  text-transform: uppercase;
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-family: var(--font-family-base);
  font-size: 18px;
  color: var(--color-surface-container-high);
  line-height: 1.6;
  margin-bottom: var(--spacing-xl);
}

.hero-diagonal-overlay {
  position: absolute;
  top: 0;
  right: 0;
  width: 35%;
  height: 100%;
  background-color: var(--color-primary);
  transform: skewX(-12deg) translateX(80px);
  transform-origin: top right;
  opacity: 0.92;
  box-shadow: -20px 0 40px rgba(0, 0, 0, 0.35);
  overflow: hidden;
  display: none;
}

@media (min-width: 1024px) {
  .hero-diagonal-overlay {
    display: block;
  }
}

.hero-diagonal-bg {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  mix-blend-mode: overlay;
  opacity: 0.3;
}

@media (max-width: 768px) {
  .tq-hero {
    min-height: 480px;
  }
  .hero-title {
    font-size: 30px;
    line-height: 1.2;
  }
  .hero-subtitle {
    font-size: 15px;
    margin-bottom: var(--spacing-lg);
  }
}

/* ==========================================================================
   2. Section Common Styles
   ========================================================================== */
.tq-section {
  width: 100%;
  padding-top: var(--spacing-xxl);
  padding-bottom: var(--spacing-xxl);
}

.section-badge {
  font-family: var(--font-family-base);
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  display: block;
  margin-bottom: var(--spacing-xs);
}

.section-heading-dark {
  font-family: var(--font-family-base);
  font-size: 32px;
  font-weight: 700;
  color: var(--color-on-secondary-fixed);
  line-height: 40px;
}

@media (max-width: 768px) {
  .tq-section {
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
  }
  .section-heading-dark {
    font-size: 24px;
    line-height: 32px;
  }
}

/* ==========================================================================
   3. Featured Products Section
   ========================================================================== */
.products-section-header {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--color-surface-container-high);
  padding-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
  .products-section-header {
    flex-direction: row;
    align-items: flex-end;
  }
}

.product-filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.tab-btn {
  padding: 8px 16px;
  background-color: var(--color-surface-container);
  color: var(--color-on-surface);
  font-family: var(--font-family-base);
  font-size: 14px;
  font-weight: 600;
  border-radius: 4px;
  border: 1px solid var(--color-surface-variant);
  cursor: pointer;
  transition: all 0.25s ease;
}

.tab-btn:hover {
  background-color: var(--color-surface-variant);
  color: var(--color-on-secondary-fixed);
}

.tab-btn.active {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--spacing-lg);
}

@media (min-width: 640px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .products-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.product-card {
  background-color: var(--color-surface-container-lowest);
  border: 1px solid var(--color-surface-variant);
  border-radius: 8px;
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  height: 100%;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  color: var(--color-on-surface);
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

.product-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-technical);
  transform: translateY(-2px);
}

.product-badge-new {
  position: absolute;
  top: var(--spacing-md);
  left: var(--spacing-md);
  background-color: var(--color-secondary-container);
  color: var(--color-on-secondary-container);
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  z-index: 2;
}

.product-img-box {
  aspect-ratio: 1 / 1;
  width: 100%;
  margin-bottom: var(--spacing-md);
  overflow: hidden;
  background-color: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm);
  border-radius: 4px;
}

.product-img-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.5s ease;
}

.product-card:hover .product-img-box img {
  transform: scale(1.06);
}

.product-card-title {
  font-family: var(--font-family-base);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-on-surface);
  line-height: 20px;
  margin-bottom: var(--spacing-xs);
  flex-grow: 1;
  transition: color 0.2s ease;
}

.product-card:hover .product-card-title {
  color: var(--color-primary);
}

.product-specs {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-top: auto;
  padding-top: var(--spacing-xs);
}

.spec-chip {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-on-surface-variant);
  border: 1px solid var(--color-surface-variant);
  padding: 2px 8px;
  border-radius: 2px;
  background-color: #ffffff;
}

.products-footer-action {
  margin-top: var(--spacing-lg);
  text-align: center;
}

/* ==========================================================================
   4. Lĩnh Vực Hoạt Động (Ecosystem Section)
   ========================================================================== */
.ecosystem-section {
  background-color: var(--color-surface-container-low);
}

.ecosystem-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto var(--spacing-xl) auto;
}

.ecosystem-desc {
  font-size: 16px;
  color: var(--color-on-surface-variant);
  line-height: 26px;
  margin-top: var(--spacing-sm);
}

.ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--spacing-lg);
}

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

@media (min-width: 1024px) {
  .ecosystem-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.ecosystem-card {
  position: relative;
  height: 256px;
  overflow: hidden;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  display: block;
}

.ecosystem-card-bg {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  transition: transform 0.7s cubic-bezier(0.25, 1, 0.5, 1);
}

.ecosystem-card:hover .ecosystem-card-bg {
  transform: scale(1.08);
}

.ecosystem-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 27, 60, 0.92) 0%, rgba(0, 27, 60, 0.4) 50%, transparent 100%);
}

.ecosystem-card-content {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: var(--spacing-md);
  z-index: 2;
}

.ecosystem-card-title {
  font-family: var(--font-family-base);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-on-secondary);
  border-left: 4px solid var(--color-primary);
  padding-left: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  transition: color 0.2s, transform 0.2s;
}

.ecosystem-card:hover .ecosystem-card-title {
  transform: translateX(4px);
}

/* ==========================================================================
   5. Strategic Partners Section
   ========================================================================== */
.partners-section {
  background-color: var(--color-surface);
}

.partners-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
  align-items: center;
}

@media (min-width: 768px) {
  .partners-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1024px) {
  .partners-grid {
    grid-template-columns: repeat(7, 1fr);
  }
}

.partner-logo-box {
  background-color: var(--color-surface-container-lowest);
  padding: var(--spacing-md);
  border-radius: 8px;
  border: 1px solid var(--color-surface-variant);
  display: flex;
  align-items: center;
  justify-content: center;
  height: 96px;
  transition: all 0.3s ease;
}

.partner-logo-box:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-technical);
  transform: translateY(-2px);
}

.partner-logo-img {
  max-height: 100%;
  max-width: 100%;
  width: auto;
  object-fit: contain;
  transition: all 0.3s ease;
}

/* ==========================================================================
   6. News Section
   ========================================================================== */
.news-section {
  background-color: var(--color-surface-container-lowest);
}

.news-section-header {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--color-surface-container-high);
  padding-bottom: var(--spacing-sm);
}

@media (min-width: 768px) {
  .news-section-header {
    flex-direction: row;
    align-items: flex-end;
  }
}

.news-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

@media (min-width: 1024px) {
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.news-card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-surface-container-lowest);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--color-surface-variant);
  box-shadow: 0 4px 20px -4px rgba(0, 0, 0, 0.05);
  transition: all 0.35s ease;
}

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

.news-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 8px 30px -4px rgba(0, 51, 102, 0.12);
  transform: translateY(-3px);
}

.news-card-img-wrap {
  width: 100%;
  height: 220px;
  overflow: hidden;
  position: relative;
}

@media (min-width: 640px) {
  .news-card-img-wrap {
    width: 40%;
    height: auto;
  }
}

.news-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s cubic-bezier(0.25, 1, 0.5, 1);
}

.news-card:hover .news-card-img {
  transform: scale(1.08);
}

.news-card-date {
  position: absolute;
  top: var(--spacing-sm);
  left: var(--spacing-sm);
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(4px);
  padding: 4px 12px;
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-on-surface-variant);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  box-shadow: var(--shadow-sm);
}

.news-card-body {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  width: 100%;
}

@media (min-width: 640px) {
  .news-card-body {
    width: 60%;
  }
}

.news-card-tag {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--spacing-sm);
}

.news-card-heading {
  font-family: var(--font-family-base);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-on-secondary-fixed);
  margin-bottom: var(--spacing-md);
  line-height: 1.35;
  transition: color 0.2s ease;
}

.news-card:hover .news-card-heading {
  color: var(--color-primary);
}

.news-card-excerpt {
  font-size: 15px;
  color: var(--color-on-surface-variant);
  line-height: 22px;
  margin-bottom: var(--spacing-lg);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-read-more {
  margin-top: auto;
  align-self: flex-start;
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 600;
  border-bottom: 2px solid rgba(218, 37, 29, 0.3);
  padding-bottom: 2px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.news-read-more:hover {
  border-bottom-color: var(--color-primary);
  transform: translateX(2px);
}

/* ==========================================================================
   7. Impressive Stats Section
   ========================================================================== */
.stats-section {
  position: relative;
  background-color: var(--color-surface-container-low);
  overflow: hidden;
}

.stats-grid-overlay {
  position: absolute;
  inset: 0;
  opacity: 0.12;
  background-image: linear-gradient(30deg, #ffffff 1px, transparent 1px), linear-gradient(150deg, #ffffff 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.stats-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto var(--spacing-xl) auto;
  position: relative;
  z-index: 2;
}

.stats-desc {
  font-size: 16px;
  color: var(--color-on-surface-variant);
  line-height: 26px;
  margin-top: var(--spacing-sm);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--spacing-lg);
  position: relative;
  z-index: 2;
}

@media (min-width: 640px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
  }
}

.stat-item {
  text-align: center;
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: transform 0.3s ease;
}

@media (min-width: 1024px) {
  .stat-item:not(:last-child) {
    border-right: 1px solid rgba(216, 227, 251, 0.35);
  }
  .stat-item {
    padding: 0 var(--spacing-lg);
  }
}

.stat-number {
  font-family: var(--font-family-base);
  font-size: 48px;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
  letter-spacing: -0.02em;
  transition: transform 0.3s ease;
}

.stat-item:hover .stat-number {
  transform: scale(1.08);
}

.stat-label {
  font-family: var(--font-family-base);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-on-surface-variant);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  min-height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}