/* ============================================
   ENERGY TRANSITION PAGE STYLES
   Consistent with sustainability.html design
   ============================================ */

/* ===== HERO SECTION ===== */
.energy-hero {
  position: relative;
  height: 100vh;
  min-height: 700px;
  max-height: 1000px;
  overflow: hidden;
   clip-path: ellipse(100% 100% at 50% 0%);
}

.hero-static {
  position: relative;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-static::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1200px;
  padding: 0 20px;
  margin: 0 auto;
  color: white;
}

.hero-text {
  max-width: 800px;
  margin-top: 80px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 30px;
  font-size: 0.9rem;
color: black;
}

.breadcrumb a {
  color: black;
  text-decoration: none;
  transition: color 0.3s;
}

.breadcrumb a:hover {
  color: #00a8ff;
}

.breadcrumb .current {
  color: #00a8ff;
  font-weight: 600;
}

.breadcrumb i {
  font-size: 0.8rem;
  margin: 0 5px;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 500;
  line-height: 1.2;
  margin-bottom: 20px;
  color: black;
}

.hero-subtitle {
  font-size: 1.25rem;
  line-height: 1.6;
  margin-bottom: 40px;
  color: black;
  font-weight: 400;
  max-width: 700px;
}

.hero-stats-energy {
  display: flex;
  gap: 30px;
  margin-top: 50px;
  flex-wrap: wrap;
}

.stat-box {
  text-align: center;
  padding: 20px;
  background: white;
  border-radius: 10px;

  
  min-width: 150px;
  transition: transform 0.3s, background 0.3s;
}

.stat-box:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.15);
}

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 500;
  color: #00a8ff;
  margin-bottom: 5px;
}

.stat-label {
  font-size: 0.9rem;
color: black;
font-weight: 400;
}

/* ===== MAIN CONTENT SECTIONS ===== */
.energy-content {
  padding-top: 0;
}

.section {
  padding: 80px 0;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-subtitle {
  display: inline-block;
  font-size: 0.9rem;
  font-weight: 600;
  color: #00a8ff;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 15px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: #1a3b5d;
  margin-bottom: 20px;
  line-height: 1.2;
}

.section-description {
  font-size: 1.125rem;
  color: #666;
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ===== INTRODUCTION SECTION ===== */
.energy-intro {
  background: #fff;
}

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

.lead-text {
  font-size: 1.25rem;
  line-height: 1.7;
  color: #1a3b5d;
  margin-bottom: 50px;
  font-weight: 500;
  text-align: center;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.intro-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 50px;
}

.intro-card {
  text-align: center;
  padding: 40px 25px;
  background: #f8f9fa;
  border-radius: 12px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 2px solid #e9ecef;
  position: relative;
  overflow: hidden;
}

.intro-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #00a8ff, #0097e6);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

.intro-card:hover::before {
  transform: translateX(0);
}

.intro-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 35px rgba(0, 168, 255, 0.15);
  border-color: #00a8ff;
}

.intro-icon {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, #00a8ff, #0097e6);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.8rem;
  transition: transform 0.3s;
}

.intro-card:hover .intro-icon {
  transform: scale(1.1) rotate(5deg);
}

.intro-card h3 {
  font-size: 1.5rem;
  color: #1a3b5d;
  margin-bottom: 15px;
  font-weight: 600;
}

.intro-card p {
  color: #666;
  line-height: 1.6;
  font-size: 0.95rem;
}

/* ===== SOLUTIONS NAVIGATION SECTION ===== */
.solutions-nav {
  background: #f8f9fa;
  position: relative;
}

.solutions-nav .section-header {
  margin-bottom: 40px;
}

.tab-nav {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 30px;
  flex-wrap: wrap;
  background: white;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 15px 25px;
  background: transparent;
  border: 2px solid #e0e6ef;
  border-radius: 8px;
  color: #495057;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 0.95rem;
  position: relative;
  overflow: hidden;
  min-width: 180px;
  justify-content: center;
}

.tab-btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: linear-gradient(135deg, #00a8ff, #0097e6);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
  z-index: 0;
}

.tab-btn:hover {
  color: white;
  border-color: #00a8ff;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 168, 255, 0.2);
}

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

.tab-btn:hover i,
.tab-btn:hover span {
  position: relative;
  z-index: 1;
}

.tab-btn.active {
  background: linear-gradient(135deg, #00a8ff, #0097e6);
  border-color: transparent;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 168, 255, 0.3);
}

.tab-btn i {
  font-size: 1.2rem;
  transition: color 0.3s;
}

.tab-btn.active i {
  color: white;
}

.tab-content {
  background: white;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
  border: 1px solid #e9ecef;
}

.tab-pane {
  display: none;
  animation: fadeIn 0.5s ease;
}

.tab-pane.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.solution-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 400px;
}

.solution-image {
  height: 400px;
  overflow: hidden;
  position: relative;
}

.solution-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(0, 168, 255, 0.1), transparent);
  z-index: 1;
}

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

.solution-image:hover img {
  transform: scale(1.05);
}

.solution-details {
  padding: 50px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.solution-details h3 {
  font-size: 1.75rem;
  color: #1a3b5d;
  margin-bottom: 20px;
  font-weight: 700;
}

.solution-details p {
  color: #666;
  line-height: 1.6;
  margin-bottom: 25px;
  font-size: 1.05rem;
}

.solution-features {
  margin-bottom: 30px;
}

.feature {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 15px;
}

.feature i {
  color: #00a8ff;
  margin-top: 3px;
  flex-shrink: 0;
  font-size: 1.1rem;
}

.feature span {
  color: #495057;
  line-height: 1.5;
  font-size: 0.95rem;
}

.solution-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #00a8ff;
  text-decoration: none;
  font-weight: 600;
  padding: 12px 25px;
  background: rgba(0, 168, 255, 0.1);
  border-radius: 8px;
  transition: all 0.3s;
  width: fit-content;
  border: 1px solid rgba(0, 168, 255, 0.2);
}

.solution-link:hover {
  background: #00a8ff;
  color: white;
  transform: translateX(5px);
  box-shadow: 0 5px 15px rgba(0, 168, 255, 0.3);
}

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

.solution-link:hover i {
  transform: translateX(3px);
}

/* ===== FEATURED PROJECTS SECTION ===== */
.parallax-section {
  position: relative;
  background-attachment: fixed;
  background-size: cover;
  background-position: center;
  color: white;
}

.parallax-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(26, 59, 93, 0.9) 0%, rgba(10, 35, 64, 0.8) 100%);
}

.featured-projects .container {
  position: relative;
  z-index: 2;
}

.featured-projects .section-header .section-title {
  color: white;
}

.featured-projects .section-header .section-subtitle {
  color: #00a8ff;
}

.featured-projects .section-header .section-description {
  color: rgba(255, 255, 255, 0.9);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.project-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.project-card:hover {
  transform: translateY(-8px);
  background: rgba(255, 255, 255, 0.15);
  box-shadow: 0 20px 40px rgba(0, 168, 255, 0.2);
}

.project-badge {
  position: absolute;
  top: 20px;
  left: 20px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  backdrop-filter: blur(5px);
  z-index: 2;
}

.project-badge.hydrogen {
  background: rgba(0, 168, 255, 0.2);
  color: #00a8ff;
  border: 1px solid rgba(0, 168, 255, 0.3);
}

.project-badge.co2 {
  background: rgba(76, 209, 55, 0.2);
  color: #4cd137;
  border: 1px solid rgba(76, 209, 55, 0.3);
}

.project-badge.battery {
  background: rgba(255, 159, 67, 0.2);
  color: #ff9f43;
  border: 1px solid rgba(255, 159, 67, 0.3);
}

.project-badge i {
  font-size: 0.9rem;
}

.project-image {
  height: 200px;
  overflow: hidden;
  position: relative;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.project-card:hover .project-image img {
  transform: scale(1.05);
}

.project-content {
  padding: 30px;
}

.project-content h3 {
  font-size: 1.5rem;
  color: white;
  margin-bottom: 15px;
  font-weight: 600;
}

.project-content p {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
  margin-bottom: 20px;
  font-size: 0.95rem;
}

.project-status {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 25px;
  padding-bottom: 15px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.status {
  padding: 6px 15px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}

.status.in-progress {
  background: rgba(255, 159, 67, 0.2);
  color: #ff9f43;
}

.status.planning {
  background: rgba(155, 136, 255, 0.2);
  color: #9b88ff;
}

.status.operational {
  background: rgba(76, 209, 55, 0.2);
  color: #4cd137;
}

.timeline {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.85rem;
}

.project-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}

.project-stats .stat {
  text-align: center;
  padding: 15px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.project-stats .value {
  display: block;
  font-size: 1.8rem;
  font-weight: 700;
  color: #00a8ff;
  margin-bottom: 5px;
}

.project-stats .label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
}

/* ===== STRATEGY SECTION ===== */
.energy-strategy {
  background: #fff;
}

.strategy-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.strategy-text .section-header {
  text-align: left;
  margin-bottom: 40px;
}

.strategy-text .section-title {
  font-size: 2.2rem;
}

.strategy-points {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.strategy-point {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.point-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #00a8ff, #0097e6);
  color: white;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
  transition: transform 0.3s;
}

.strategy-point:hover .point-icon {
  transform: rotate(10deg) scale(1.1);
}

.point-content h4 {
  font-size: 1.25rem;
  color: #1a3b5d;
  margin-bottom: 8px;
  font-weight: 600;
}

.point-content p {
  color: #666;
  line-height: 1.6;
  font-size: 0.95rem;
}

.storage-timeline {
  background: linear-gradient(135deg, #f8f9fa, #e9ecef);
  border-radius: 16px;
  padding: 40px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  border: 1px solid #e0e6ef;
}

.timeline-point {
  display: flex;
  gap: 25px;
  align-items: center;
  margin-bottom: 30px;
  padding-bottom: 30px;
  border-bottom: 2px dashed #dee2e6;
}

.timeline-point:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.point-marker {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  color: white;
  flex-shrink: 0;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.point-marker.short {
  background: linear-gradient(135deg, #ff9f43, #ff8c00);
}

.point-marker.medium {
  background: linear-gradient(135deg, #00a8ff, #0097e6);
}

.point-marker.long {
  background: linear-gradient(135deg, #9c88ff, #8c7ae6);
}

.point-content h5 {
  font-size: 1.3rem;
  color: #1a3b5d;
  margin-bottom: 10px;
  font-weight: 600;
}

.point-content p {
  color: #666;
  font-size: 0.9rem;
  margin-bottom: 3px;
}

/* ===== REGIONAL FOCUS SECTION ===== */
.regional-focus {
  background: #f8f9fa;
}

.region-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.region-card {
  background: white;
  border-radius: 16px;
  padding: 40px 30px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
  border: 1px solid #e9ecef;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.region-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, #00a8ff, #0097e6);
  transform: translateX(-100%);
  transition: transform 0.5s ease;
}

.region-card:hover::before {
  transform: translateX(0);
}

.region-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 168, 255, 0.1);
  border-color: #00a8ff;
}

.region-flag {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #00a8ff, #0097e6);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 25px;
  font-size: 2rem;
  transition: transform 0.3s;
}

.region-card:hover .region-flag {
  transform: rotate(15deg) scale(1.1);
}

.region-content h3 {
  font-size: 1.5rem;
  color: #1a3b5d;
  margin-bottom: 15px;
  font-weight: 600;
}

.region-content p {
  color: #666;
  line-height: 1.6;
  margin-bottom: 25px;
  font-size: 0.95rem;
}

.region-content ul {
  list-style: none;
  padding: 0;
  margin-bottom: 25px;
  text-align: left;
}

.region-content li {
  margin-bottom: 10px;
  color: #666;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.region-content li i {
  color: #00a8ff;
  margin-top: 3px;
  flex-shrink: 0;
}

.region-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #00a8ff;
  text-decoration: none;
  font-weight: 600;
  padding: 10px 25px;
  background: rgba(0, 168, 255, 0.1);
  border-radius: 8px;
  transition: all 0.3s;
  border: 1px solid rgba(0, 168, 255, 0.2);
}

.region-link:hover {
  background: #00a8ff;
  color: white;
  transform: translateX(5px);
}

/* ===== CONTACT CTA SECTION ===== */
.energy-contact {
  background: linear-gradient(135deg, #1a3b5d 0%, #0a3250 100%);
  color: white;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.contact-info .section-header {
  text-align: left;
  margin-bottom: 40px;
}

.contact-info .section-title {
  color: white;
}

.contact-info .section-subtitle {
  color: #00a8ff;
}

.contact-info .section-description {
  color: rgba(255, 255, 255, 0.9);
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.contact-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  background: rgba(255, 255, 255, 0.05);
  padding: 20px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s;
}

.contact-item:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateX(5px);
}

.contact-item i {
  color: #00a8ff;
  font-size: 1.5rem;
  margin-top: 5px;
  flex-shrink: 0;
}

.contact-item h4 {
  font-size: 1.1rem;
  color: white;
  margin-bottom: 8px;
  font-weight: 600;
}

.contact-item p {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.5;
  font-size: 0.95rem;
  margin-bottom: 5px;
}

.location-link {
  display: inline-block;
  color: #00a8ff;
  text-decoration: none;
  font-size: 0.9rem;
  margin-top: 5px;
  font-weight: 500;
  transition: color 0.3s;
}

.location-link:hover {
  color: white;
  text-decoration: underline;
}

.contact-form {
  background: white;
  padding: 50px 40px;
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.form-group {
  margin-bottom: 25px;
}

.form-group label {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #1a3b5d;
  font-weight: 600;
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.form-group label i {
  color: #00a8ff;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid #e0e6ef;
  border-radius: 8px;
  font-size: 0.95rem;
  color: #495057;
  transition: all 0.3s;
  background: #fff;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #00a8ff;
  box-shadow: 0 0 0 3px rgba(0, 168, 255, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.submit-btn {
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, #00a8ff, #0097e6);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.submit-btn:hover {
  background: linear-gradient(135deg, #0097e6, #0082cc);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(0, 168, 255, 0.3);
}

.submit-btn i {
  transition: transform 0.3s;
}

.submit-btn:hover i {
  transform: translateX(3px);
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

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

.fade-in-left {
  opacity: 0;
  animation: fadeInLeft 0.8s ease forwards;
}

.fade-in-right {
  opacity: 0;
  animation: fadeInRight 0.8s ease forwards;
}

.fade-in-up {
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-on-scroll.animated {
  opacity: 1;
  transform: translateY(0);
}

/* ===== RESPONSIVE DESIGN ===== */

/* Tablets and small desktops */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 2.8rem;
  }
  
  .hero-stats-energy {
    gap: 20px;
  }
  
  .stat-box {
    min-width: 130px;
    padding: 15px;
  }
  
  .stat-number {
    font-size: 2rem;
  }
  
  .intro-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .solution-content {
    grid-template-columns: 1fr;
  }
  
  .solution-image {
    height: 300px;
    order: -1;
  }
  
  .strategy-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .region-cards {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* Tablets */
@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }
  
  .hero-title {
    font-size: 2.3rem;
  }
  
  .hero-subtitle {
    font-size: 1.1rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .intro-grid {
    grid-template-columns: 1fr;
  }
  
  .tab-nav {
    flex-direction: column;
    align-items: stretch;
  }
  
  .tab-btn {
    min-width: auto;
    width: 100%;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
  }
  
  .region-cards {
    grid-template-columns: 1fr;
  }
}

/* Mobile phones */
@media (max-width: 576px) {
  .hero-title {
    font-size: 1.8rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .hero-stats-energy {
    flex-direction: column;
    align-items: center;
  }
  
  .stat-box {
    width: 100%;
    max-width: 250px;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .section-description {
    font-size: 1rem;
  }
  
  .solution-details {
    padding: 30px 20px;
  }
  
  .strategy-point {
    flex-direction: column;
    text-align: center;
  }
  
  .timeline-point {
    flex-direction: column;
    text-align: center;
  }
  
  .contact-form {
    padding: 30px 20px;
  }
}

/* Small mobile phones */
@media (max-width: 400px) {
  .hero-title {
    font-size: 1.6rem;
  }
  
  .breadcrumb {
    font-size: 0.8rem;
  }
  
  .section {
    padding: 50px 0;
  }
  
  .container {
    padding: 0 15px;
  }
}

/* Large desktops */
@media (min-width: 1400px) {
  .container {
    max-width: 1300px;
  }
  
  .hero-title {
    font-size: 4rem;
  }
  
  .hero-subtitle {
    font-size: 1.3rem;
  }
  
  .projects-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* High DPI screens */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .featured-projects {
    background-attachment: scroll;
  }
}