:root {
  --primary-blue: #0066b3;
  --secondary-red: #fa1713;
  --dark-blue: #004d8c;
  --light-bg: #f8f9fa;
}

/* Hero Section */
.hero-section {
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
  min-height: 500px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: 80px 0;
  margin-bottom: 40px;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('../images/gas-isolate-solution-1- Copy.jpg') center/cover;
  opacity: 0.1;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 2;
  color: white;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  text-shadow: 2px 2px 8px rgba(0,0,0,0.3);
  animation: fadeInUp 0.8s ease-out;
}

.hero-subtitle {
  font-size: 1.3rem;
  margin-bottom: 2rem;
  opacity: 0.95;
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-stats {
  display: flex;
  gap: 3rem;
  margin-top: 3rem;
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: #fff;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.9;
  text-transform: uppercase;
  letter-spacing: 1px;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Features Grid */
.features-section {
  padding: 80px 0;
  background: var(--light-bg);
}

.feature-card {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  transition: all 0.3s ease;
  height: 100%;
  border-top: 4px solid var(--primary-blue);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

.feature-icon {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: white;
  font-size: 2rem;
}

.feature-title {
  color: var(--primary-blue);
  font-weight: 700;
  margin-bottom: 1rem;
  font-size: 1.25rem;
}

/* Section Title */
.section-title {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-blue);
  margin-bottom: 1rem;
}

.section-title .underline {
  width: 80px;
  height: 4px;
  background: var(--secondary-red);
  margin: 0 auto 1rem;
  border-radius: 2px;
}

.tabset > input[type="radio"] {
  position: absolute;
  left: -200vw;
}
.tabset .tab-panel {
  display: none;
}
.tabset > input:first-child:checked ~ .tab-panels > .tab-panel:first-child,
.tabset > input:nth-child(3):checked ~ .tab-panels > .tab-panel:nth-child(2),
.tabset > input:nth-child(5):checked ~ .tab-panels > .tab-panel:nth-child(3) {
  display: block;
}
.tabset > label {
  position: relative;
  display: inline-block;
  padding: 15px 30px;
  cursor: pointer;
  font-weight: 600;
  background: #f8f9fa;
  border: 2px solid #dee2e6;
  margin-right: 5px;
  border-radius: 8px 8px 0 0;
}
.tabset > label:hover {
  background: #e9ecef;
}
.tabset > input:checked + label {
  background: var(--primary-blue, #0066cc);
  color: white;
  border-color: var(--primary-blue, #0066cc);
}
.tab-panels {
  padding: 30px;
  background: white;
  border: 2px solid #dee2e6;
  border-radius: 0 8px 8px 8px;
}

/* Table Styling */
.table {
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.table thead {
  background: var(--primary-blue);
  color: white;
}

.table tbody tr:hover {
  background: var(--light-bg);
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
  color: white;
  padding: 80px 0;
  text-align: center;
}

.cta-section h2 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.btn-cta {
  background: var(--secondary-red) !important;
  color: white !important;
  padding: 1rem 3rem !important;
  font-size: 1.1rem !important;
  font-weight: 600 !important;
  border: none !important;
  border-radius: 50px !important;
  transition: all 0.3s ease !important;
  text-decoration: none !important;
  display: inline-block !important;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(250, 23, 19, 0.4) !important;
}

.btn-cta::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn-cta:hover::before {
  width: 300px;
  height: 300px;
}

.btn-cta:hover,
.btn-cta:focus,
.btn-cta:active {
  background: #d4001a !important;
  color: white !important;
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(250, 23, 19, 0.6) !important;
  border-color: transparent !important;
  outline: none !important;
}

.btn-cta i {
  position: relative;
  z-index: 1;
  transition: transform 0.3s ease;
}

.btn-cta:hover i {
  transform: scale(1.2);
}

/* Responsive */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: 1.5rem;
  }

  .section-title h2 {
    font-size: 1.8rem;
  }

  .tabset > label {
    display: block;
    margin-bottom: 0.5rem;
    border-radius: 8px;
  }

  .tab-panels {
    padding: 1.5rem;
  }
}

/* Privacy Policy */

.privacy-hero {
  background: linear-gradient(135deg, rgba(0,102,179,0.95), rgba(0,77,140,0.95)), url('../images/confidential-personal-privacy.jpg') center/cover;
  min-height: 400px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: 100px 0 80px;
}

.content-wrapper {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 15px;
}

.policy-card {
  background: white;
  border-radius: 20px;
  padding: 3rem;
  box-shadow: 0 10px 40px rgba(0,0,0,0.08);
  margin-bottom: 2rem;
}

.policy-section {
  margin-bottom: 3rem;
}

.policy-section h2 {
  color: var(--primary-blue);
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 3px solid var(--secondary-red);
  position: relative;
}

.policy-section h2::before {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 60px;
  height: 3px;
  background: var(--primary-blue);
}

.policy-section p {
  color: #4a5568;
  line-height: 1.9;
  font-size: 1.05rem;
  margin-bottom: 1.25rem;
}

.policy-section ul {
  list-style: none;
  padding-left: 0;
}

.policy-section ul li {
  color: #4a5568;
  line-height: 1.9;
  font-size: 1.05rem;
  margin-bottom: 1rem;
  padding-left: 2rem;
  position: relative;
}

.policy-section ul li::before {
  content: '\f058';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  left: 0;
  color: var(--primary-blue);
}

.policy-section ul li strong {
  color: var(--primary-blue);
  font-weight: 600;
}

.policy-section a {
  color: var(--primary-blue);
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
}

.policy-section a:hover {
  color: var(--secondary-red);
  text-decoration: underline;
}

.highlight-box {
  background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
  border-left: 4px solid var(--primary-blue);
  padding: 1.5rem;
  border-radius: 12px;
  margin: 1.5rem 0;
}

.toc-card {
  background: linear-gradient(135deg, #f8f9fa, #e9ecef);
  border-radius: 15px;
  padding: 2rem;
  margin-bottom: 3rem;
  border-left: 5px solid var(--primary-blue);
}

.toc-card h3 {
  color: var(--primary-blue);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.toc-list {
  list-style: none;
  padding: 0;
}

.toc-list li {
  margin-bottom: 0.75rem;
}

.toc-list a {
  color: #2d3748;
  text-decoration: none;
  font-weight: 600;
  display: flex;
  align-items: center;
  transition: all 0.3s ease;
}

.toc-list a:hover {
  color: var(--primary-blue);
  padding-left: 10px;
}

.toc-list a i {
  margin-right: 0.75rem;
  color: var(--primary-blue);
}

@media (max-width: 768px) {
  .policy-card {
    padding: 2rem 1.5rem;
  }

  .policy-section h2 {
    font-size: 1.5rem;
  }

  .privacy-hero {
    min-height: 300px;
  }
}

.modern-product-card {
  position: relative;
  height: 350px;
  border-radius: 20px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.4s ease;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.modern-product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.8) 100%);
  z-index: 1;
  transition: all 0.4s ease;
}

.modern-product-card:hover {
  transform: translateY(-10px);
}

.product-card-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 2rem;
  z-index: 2;
  color: white;
}

.product-card-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.product-card-badge {
  display: inline-block;
  background: rgba(250,23,19,0.9);
  color: white;
  padding: 0.3rem 1rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-top: 0.5rem;
}

/* Category Navigation */
.category-nav {
  background: white;
  border-radius: 15px;
  padding: 1.5rem;
  box-shadow: 0 5px 20px rgba(0,0,0,0.08);
  margin-bottom: 3rem;
}

.category-btn {
  padding: 1rem 2rem;
  border: 2px solid #e9ecef;
  background: white;
  border-radius: 12px;
  font-weight: 600;
  color: #666;
  transition: all 0.3s ease;
  margin: 0.5rem;
}

.category-btn:hover {
  background: #f8f9fa;
  border-color: #0066b3;
  color: #0066b3;
}

.category-btn.active {
  background: linear-gradient(135deg, #0066b3, #004d8c);
  color: white;
  border-color: #0066b3;
}

/* Service Cards */
.service-card-modern {
  background: white;
  border-radius: 20px;
  padding: 2.5rem;
  height: 100%;
  transition: all 0.3s ease;
  border: 2px solid #f0f3f8;
}

.service-card-modern:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0,102,179,0.15);
  border-color: #0066b3;
}

.service-icon-wrapper {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #0066b3, #004d8c);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.modern-product-card {
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease;
}

.product-hover-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgb(2 3 4 / 87%);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 2;
}

.modern-product-card:hover .product-hover-overlay {
  opacity: 1;
}

.hover-title {
  color: white;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  text-align: center;
}

.hover-description {
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.95rem;
  line-height: 1.6;
  text-align: center;
  margin-bottom: 1.5rem;
}

.hover-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.hover-btn {
  padding: 0.75rem 1.5rem;
  border-radius: 25px;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
  font-size: 0.9rem;
}

.btn-call {
  background: white;
  color: #0066b3;
}

.btn-call:hover {
  background: #f8f9fa;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn-email {
  background: #fa1713;
  color: white;
}

.btn-email:hover {
  background: #d4120f;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Desktop hover */
@media (min-width: 1024px) {
  .modern-product-card:hover .product-hover-overlay {
    opacity: 1;
    pointer-events: auto;
  }
}

/* Mobile click functionality */
@media (max-width: 1023px) {
  .product-hover-overlay {
    padding: 1.5rem;
  }
  
  .hover-title {
    font-size: 1.25rem;
  }
  
  .hover-description {
    font-size: 0.85rem;
  }
}

/* Close button for mobile */
.overlay-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: white;
  width: 35px;
  height: 35px;
  border-radius: 50%;
  display: none;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.2rem;
  transition: background 0.3s ease;
}

.overlay-close:hover {
  background: rgba(255, 255, 255, 0.3);
}

@media (max-width: 1023px) {
  .product-hover-overlay.active .overlay-close {
    display: flex;
  }
}