/* ==========================================================================
   HEADER & NAVIGATION (Fixed Header JSW Steel Style)
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 1000;
  background: var(--white);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
}

.site-header.scrolled {
  box-shadow: 0 8px 30px rgba(11, 31, 58, 0.14);
}

/* Top Utility Bar */
.top-bar {
  background-color: var(--primary-navy);
  color: var(--text-light);
  font-size: 0.85rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 8px 32px;
}

.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-bar-left, .top-bar-right {
  display: flex;
  align-items: center;
  gap: 24px;
}

.top-contact-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #cbd5e1;
  font-weight: 500;
}

.top-contact-item i {
  color: var(--accent-red);
}

.top-contact-item a:hover {
  color: var(--white);
}

.lang-switcher {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.08);
  padding: 4px 10px;
  border-radius: 20px;
}

.lang-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  opacity: 0.6;
  transition: var(--transition);
  font-size: 0.8rem;
  font-weight: 600;
}

.lang-item.active, .lang-item:hover {
  opacity: 1;
  color: var(--white);
}

.lang-flag {
  width: 16px;
  height: 12px;
  border-radius: 2px;
  object-fit: cover;
}

.social-links {
  display: flex;
  align-items: center;
  gap: 12px;
}

.social-icon {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  color: var(--white);
  font-size: 0.85rem;
  transition: var(--transition);
}

.social-icon:hover {
  background: var(--accent-red);
  transform: translateY(-2px);
}

/* Main Navigation Bar */
.main-nav-wrapper {
  background: var(--white);
  transition: var(--transition);
  padding: 0 32px;
}

.site-header.scrolled .main-nav-inner {
  padding: 8px 0;
}

.main-nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
}

.brand-logo {
  display: flex;
  align-items: center;
}

.brand-logo img {
  height: 52px;
  width: auto;
  transition: var(--transition);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 14px;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--primary-navy);
  transition: var(--transition);
  position: relative;
  white-space: nowrap;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 16px;
  right: 16px;
  height: 3px;
  background: var(--accent-red);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
}

.nav-item:hover .nav-link,
.nav-item.active .nav-link {
  color: var(--accent-red);
}

.nav-item:hover .nav-link::after,
.nav-item.active .nav-link::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-item i.chevron {
  font-size: 0.75rem;
  transition: transform 0.3s ease;
}

.nav-item:hover i.chevron {
  transform: rotate(180deg);
}

/* Mega Menu & Submenu (JSW Steel Inspired) */
.mega-menu {
  position: absolute;
  top: 100%;
  left: -150px;
  width: 780px;
  background: var(--white);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-md);
  border-top: 4px solid var(--accent-red);
  padding: 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(15px);
  transition: var(--transition);
  z-index: 1001;
}

.nav-item:hover .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mega-column-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary-navy);
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 8px;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.mega-column-title a:hover {
  color: var(--accent-red);
}

.mega-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mega-list a {
  font-size: 0.9rem;
  color: var(--steel-slate);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  transition: var(--transition);
}

.mega-list a::before {
  content: '■';
  font-size: 0.5rem;
  color: var(--accent-red);
  opacity: 0;
  transform: translateX(-5px);
  transition: var(--transition);
}

.mega-list a:hover {
  color: var(--accent-red);
  transform: translateX(4px);
}

.mega-list a:hover::before {
  opacity: 1;
  transform: translateX(0);
}

/* Simple Dropdown Menu */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 240px;
  background: var(--white);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-md);
  border-top: 3px solid var(--accent-red);
  padding: 12px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(15px);
  transition: var(--transition);
  z-index: 1001;
}

.nav-item:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu li a {
  display: block;
  padding: 10px 20px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--steel-slate);
  transition: var(--transition);
}

.dropdown-menu li a:hover {
  background: #f8fafc;
  color: var(--accent-red);
  padding-left: 26px;
}

/* Nav Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.search-toggle-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f1f5f9;
  border-radius: 50%;
  color: var(--primary-navy);
  font-size: 1rem;
  transition: var(--transition);
}

.search-toggle-btn:hover {
  background: var(--accent-red);
  color: var(--white);
}

.mobile-menu-btn {
  display: none;
  font-size: 1.5rem;
  color: var(--primary-navy);
}

/* Search Modal Overlay */
.search-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(11, 31, 58, 0.95);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.search-overlay.active {
  opacity: 1;
  visibility: visible;
}

.search-box-container {
  width: 90%;
  max-width: 650px;
  position: relative;
}

.search-form {
  position: relative;
}

.search-input {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 2px solid var(--white);
  padding: 16px 50px 16px 0;
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--white);
  outline: none;
}

.search-input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.search-submit-btn {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent-red);
  font-size: 1.8rem;
}

.close-search-btn {
  position: absolute;
  top: -60px;
  right: 0;
  color: var(--white);
  font-size: 2rem;
  transition: var(--transition);
}

.close-search-btn:hover {
  color: var(--accent-red);
  transform: rotate(90deg);
}

/* ==========================================================================
   HERO SLIDER (JSW Steel Visual Impact)
   ========================================================================== */
.hero-section {
  position: relative;
  height: 86vh;
  min-height: 640px;
  max-height: 920px;
  background: var(--bg-dark);
  overflow: hidden;
}

.hero-slider {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity 1s cubic-bezier(0.4, 0, 0.2, 1), visibility 1s;
}

.hero-slide.active {
  opacity: 1;
  visibility: visible;
}

.slide-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  transform: scale(1.08);
  transition: transform 7s ease-out;
}

.hero-slide.active .slide-bg {
  transform: scale(1);
}

.slide-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, rgba(7, 19, 38, 0.92) 0%, rgba(7, 19, 38, 0.75) 50%, rgba(7, 19, 38, 0.3) 100%);
}

.slide-content-wrap {
  position: relative;
  z-index: 10;
  height: 100%;
  display: flex;
  align-items: center;
  padding-bottom: 90px; /* Leave comfortable room for elevated controls and stats bar */
}

.slide-content {
  max-width: 780px;
  color: var(--white);
}

.slide-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: #d9232a;
  border-left: 3px solid var(--accent-red);
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 16px;
  transform: translateY(20px);
  opacity: 0;
  transition: 0.6s ease 0.2s;
}

.slide-title {
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 4.5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.15;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 18px;
  transform: translateY(30px);
  opacity: 0;
  transition: 0.8s ease 0.4s;
  color: var(--white);
  text-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
}

.slide-desc {
  font-size: 1.1rem;
  line-height: 1.65;
  color: var(--text-light);
  margin-bottom: 30px;
  max-width: 680px;
  transform: translateY(30px);
  opacity: 0;
  transition: 0.8s ease 0.6s;
}

.slide-actions {
  display: flex;
  gap: 16px;
  transform: translateY(30px);
  opacity: 0;
  transition: 0.8s ease 0.8s;
}

.hero-slide.active .slide-badge,
.hero-slide.active .slide-title,
.hero-slide.active .slide-desc,
.hero-slide.active .slide-actions {
  transform: translateY(0);
  opacity: 1;
}

/* Slider Controls Elevated Above Stats Bar */
.slider-nav-arrows {
  position: absolute;
  right: 48px;
  bottom: 85px;
  display: flex;
  gap: 12px;
  z-index: 25;
}

.slider-arrow-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--white);
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.slider-arrow-btn:hover {
  background: var(--accent-red);
  border-color: var(--accent-red);
  transform: scale(1.08);
}

.slider-indicators {
  position: absolute;
  left: 48px;
  bottom: 95px;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 25;
}

.slide-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  transition: var(--transition);
  position: relative;
  cursor: pointer;
}

.slide-dot.active {
  width: 36px;
  border-radius: 6px;
  background: var(--accent-red);
}

/* ==========================================================================
   STATS HIGHLIGHT BAR (JSW Key Capabilities)
   ========================================================================== */
.stats-section {
  position: relative;
  z-index: 30;
  margin-top: -50px;
  padding-bottom: 50px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  background: var(--white);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-md);
  border-bottom: 4px solid var(--accent-red);
  overflow: hidden;
}

.stat-card {
  padding: 30px 20px;
  text-align: center;
  border-right: 1px solid var(--border-color);
  transition: var(--transition);
  position: relative;
  background: var(--white);
}

.stat-card:last-child {
  border-right: none;
}

.stat-card:hover {
  background: var(--bg-light);
  transform: translateY(-4px);
}

.stat-card:hover .stat-icon {
  background: var(--accent-red);
  color: var(--white);
  border-color: var(--accent-red);
  transform: scale(1.08);
}

.stat-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #edf5fd, #dbeafe);
  border: 1px solid rgba(6, 95, 184, 0.18);
  border-radius: 50%;
  color: var(--accent-red);
  font-size: 1.35rem;
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(6, 95, 184, 0.08);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--primary-navy);
  line-height: 1.2;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--steel-slate);
  letter-spacing: 0.5px;
}

/* ==========================================================================
   ABOUT VINA ONE & CORPORATE VIDEO (JSW Corporate Overview)
   ========================================================================== */
.about-section {
  padding: 80px 0;
  background-color: var(--white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 50px;
  align-items: center;
}

.about-text-content p {
  font-size: 1.05rem;
  color: var(--steel-slate);
  margin-bottom: 20px;
  line-height: 1.8;
}

.about-highlights {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 28px 0;
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-light);
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent-red);
}

.highlight-item i {
  color: var(--accent-red);
  font-size: 1.2rem;
}

.highlight-item span {
  font-weight: 600;
  color: var(--primary-navy);
  font-size: 0.95rem;
}

.about-video-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: #000;
  aspect-ratio: 16 / 9;
}

.video-poster-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.85;
  transition: transform 0.6s ease;
}

.about-video-card:hover .video-poster-img {
  transform: scale(1.04);
}

.play-video-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 74px;
  height: 74px;
  border-radius: 50%;
  background: var(--accent-red);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  box-shadow: 0 0 0 10px rgba(6, 95, 184, 0.3);
  transition: var(--transition);
}

.play-video-btn:hover {
  background: var(--white);
  color: var(--accent-red);
  box-shadow: 0 0 0 18px rgba(255, 255, 255, 0.4);
  transform: translate(-50%, -50%) scale(1.1);
}

/* Video Modal */
.video-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(8px);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.video-modal.active {
  opacity: 1;
  visibility: visible;
}

.video-modal-content {
  width: 90%;
  max-width: 900px;
  aspect-ratio: 16 / 9;
  position: relative;
}

.video-modal-content iframe {
  width: 100%;
  height: 100%;
  border: none;
  border-radius: var(--radius-md);
}

.close-modal-btn {
  position: absolute;
  top: -45px;
  right: 0;
  color: var(--white);
  font-size: 2rem;
  transition: var(--transition);
}

.close-modal-btn:hover {
  color: var(--accent-red);
}

/* ==========================================================================
   PRODUCTS ECOSYSTEM (JSW Product Showcase & Matrix)
   ========================================================================== */
.products-section {
  padding: 90px 0;
  background-color: var(--bg-light);
}

.products-action-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 20px;
}

/* Category Filter Tabs (JSW Style) */
.product-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  background: var(--white);
  padding: 6px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

.tab-btn {
  padding: 10px 22px;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--steel-slate);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.tab-btn:hover {
  color: var(--accent-red);
}

.tab-btn.active {
  background: var(--primary-navy);
  color: var(--white);
}

/* Product Cards Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.product-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-color);
  position: relative;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-red);
}

.product-img-wrap {
  position: relative;
  height: 230px;
  overflow: hidden;
  background: #f8fafc;
}

.product-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

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

.product-category-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(11, 31, 58, 0.85);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 4px 10px;
  border-radius: 4px;
  border-left: 2px solid var(--accent-red);
}

.product-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-title {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary-navy);
  margin-bottom: 10px;
  line-height: 1.3;
}

.product-title a:hover {
  color: var(--accent-red);
}

.product-sub-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 14px 0 20px;
}

.sub-tag {
  background: var(--bg-light);
  color: var(--steel-slate);
  font-size: 0.8rem;
  padding: 4px 10px;
  border-radius: 20px;
  border: 1px solid var(--border-color);
  font-weight: 500;
  transition: var(--transition);
}

.sub-tag:hover {
  background: var(--primary-navy);
  color: var(--white);
}

.product-footer {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.product-detail-link {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-red);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  letter-spacing: 0.5px;
}

.product-detail-link i {
  transition: transform 0.3s ease;
}

.product-card:hover .product-detail-link i {
  transform: translateX(5px);
}

/* ==========================================================================
   CERTIFICATIONS & AWARDS (Credentials Carousel & Lightbox)
   ========================================================================== */
.awards-section {
  padding: 90px 0;
  background: var(--white);
}

.awards-carousel-wrapper {
  position: relative;
  margin-top: 40px;
}

.awards-track {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  scroll-behavior: smooth;
  padding: 16px 4px 30px;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-red) var(--border-color);
}

.awards-track::-webkit-scrollbar {
  height: 6px;
}

.awards-track::-webkit-scrollbar-thumb {
  background: var(--accent-red);
  border-radius: 4px;
}

.award-item {
  flex: 0 0 260px;
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.award-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent-red);
}

.award-img-wrap {
  width: 100%;
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  background: #fafafa;
  border-radius: var(--radius-sm);
  padding: 10px;
  position: relative;
}

.award-img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
  transition: transform 0.4s ease;
}

.award-item:hover .award-img {
  transform: scale(1.05);
}

.zoom-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(11, 31, 58, 0.4);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.5rem;
  opacity: 0;
  transition: var(--transition);
}

.award-item:hover .zoom-overlay {
  opacity: 1;
}

.award-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--primary-navy);
  line-height: 1.4;
  margin-top: auto;
}

/* Lightbox Modal */
.lightbox-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(7, 19, 38, 0.92);
  backdrop-filter: blur(8px);
  z-index: 3500;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.lightbox-modal.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-content {
  max-width: 80%;
  max-height: 85vh;
  text-align: center;
}

.lightbox-img {
  max-width: 100%;
  max-height: 75vh;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  object-fit: contain;
}

.lightbox-caption {
  color: var(--white);
  margin-top: 14px;
  font-size: 1.1rem;
  font-weight: 600;
}

/* ==========================================================================
   SUPPLY & GLOBAL REACH (Mạng lưới phủ sóng - JSW Global Footprint)
   ========================================================================== */
.network-section {
  padding: 90px 0;
  background: var(--bg-dark);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.network-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 80% 20%, rgba(6, 95, 184, 0.15) 0%, transparent 60%);
  pointer-events: none;
}

.network-section .section-title {
  color: var(--white);
}

.network-section .section-subtitle {
  color: var(--text-light);
}

.network-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 50px;
  align-items: center;
  margin-top: 40px;
}

.network-text-block p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-light);
  margin-bottom: 20px;
}

.network-feature-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 28px;
}

.network-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-dark);
  padding: 18px 22px;
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.network-feature-item:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--accent-red);
  transform: translateX(6px);
}

.network-feature-item i {
  color: var(--accent-red);
  font-size: 1.5rem;
  margin-top: 4px;
}

.network-feature-item h4 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 4px;
}

.network-feature-item p {
  font-size: 0.95rem;
  color: #94a3b8;
  margin: 0;
}

.network-map-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-lg);
}

.map-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--border-dark);
  padding-bottom: 12px;
}

.map-card-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--white);
}

.map-frame-container {
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 380px;
}

.map-frame-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ==========================================================================
   NEWS & EVENTS (JSW Insights & Newsroom)
   ========================================================================== */
.news-section {
  padding: 90px 0;
  background: var(--white);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.news-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.news-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-red);
}

.news-thumb-wrap {
  position: relative;
  height: 220px;
  overflow: hidden;
  background: #f1f5f9;
}

.news-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

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

.news-date-badge {
  position: absolute;
  bottom: 14px;
  left: 14px;
  background: var(--accent-red);
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.news-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.news-category {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--steel-silver);
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.news-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--primary-navy);
  line-height: 1.4;
  margin-bottom: 16px;
  transition: var(--transition);
}

.news-title a:hover {
  color: var(--accent-red);
}

.news-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-red);
}

.news-link i {
  transition: transform 0.3s ease;
}

.news-card:hover .news-link i {
  transform: translateX(6px);
}

/* ==========================================================================
   CONTACT & HEADQUARTERS SECTION
   ========================================================================== */
.contact-section {
  padding: 90px 0;
  background: var(--bg-light);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.contact-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  border-top: 4px solid var(--accent-red);
}

.contact-card-title {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary-navy);
  margin-bottom: 20px;
}

.company-full-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary-blue);
  margin-bottom: 24px;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 30px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 1rem;
  color: var(--steel-slate);
}

.contact-item i {
  color: var(--accent-red);
  font-size: 1.2rem;
  margin-top: 4px;
}

.contact-item strong {
  color: var(--primary-navy);
  min-width: 85px;
}

/* Quick Inquiry Form */
.inquiry-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group.full-width {
  grid-column: span 2;
}

.form-input, .form-textarea {
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--accent-red);
  box-shadow: 0 0 0 3px rgba(6, 95, 184, 0.15);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

/* ==========================================================================
   MEGA FOOTER (JSW Steel Industrial Footer)
   ========================================================================== */
.site-footer {
  background: var(--bg-dark);
  color: var(--text-light);
  padding-top: 80px;
  border-top: 4px solid var(--accent-red);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 40px;
  padding-bottom: 60px;
  border-bottom: 1px solid var(--border-dark);
}

.footer-brand img {
  height: 48px;
  width: auto;
  margin-bottom: 20px;
  filter: brightness(0) invert(1);
}

.footer-brand p {
  color: #94a3b8;
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 24px;
}

.footer-col-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 36px;
  height: 2px;
  background: var(--accent-red);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: #94a3b8;
  font-size: 0.95rem;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-links a:hover {
  color: var(--accent-red);
  transform: translateX(4px);
}

.footer-bottom {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  color: #64748b;
}

.footer-social-links {
  display: flex;
  gap: 12px;
}

/* Back to top button */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--accent-red);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: var(--shadow-md);
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--accent-red-hover);
  transform: translateY(-4px);
}

/* ==========================================================================
   RESPONSIVE DESIGN (Tablets & Mobile)
   ========================================================================== */
@media (max-width: 1024px) {
  .nav-menu {
    display: none;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .stat-card:nth-child(3) {
    border-right: none;
  }
  
  .about-grid, .network-grid, .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .products-grid, .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-top {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .top-bar-left {
    display: none;
  }
  
  .slide-title {
    font-size: 2.5rem;
  }
  
  .section-title {
    font-size: 2.2rem;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .stat-card:nth-child(2n) {
    border-right: none;
  }
  
  .products-grid, .news-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-top {
    grid-template-columns: 1fr;
  }
  
  .inquiry-form {
    grid-template-columns: 1fr;
  }
  
  .form-group.full-width {
    grid-column: span 1;
  }
}