:root {
  /* Color palette - Analogous color scheme based on energy sector theme */
  --primary-color: #e85a2c; /* Bold orange-red for energy/petroleum */
  --primary-dark: #c2461e; /* Darker variant for hover states */
  --primary-light: #ff7a4d; /* Lighter variant for highlights */
  
  --secondary-color: #2c8ae8; /* Complementary blue for contrast */
  --secondary-dark: #1e6ec2; /* Darker blue for hover states */
  --secondary-light: #4da8ff; /* Lighter blue for highlights */
  
  --accent-color: #e8c52c; /* Golden accent for premium/education feel */
  --accent-dark: #c2a41e; /* Darker gold for hover states */
  
  --neutral-dark: #2a3142; /* Dark shade for text */
  --neutral-medium: #4a5568; /* Medium shade for secondary text */
  --neutral-light: #e2e8f0; /* Light shade for backgrounds */
  --neutral-white: #ffffff; /* Pure white for text on dark backgrounds */
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  --gradient-secondary: linear-gradient(135deg, var(--secondary-color), var(--primary-light));
  
  /* Typography */
  --heading-font: 'Montserrat', sans-serif;
  --body-font: 'Merriweather', serif;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 5rem;
  
  /* Border radius */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;
  
  /* Box shadow */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Container widths */
  --container-max-width: 1200px;
}

/* Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--body-font);
  color: var(--neutral-dark);
  line-height: 1.6;
  overflow-x: hidden;
  background-color: var(--neutral-white);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--heading-font);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--neutral-dark);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2.2rem;
  margin-bottom: var(--spacing-lg);
  position: relative;
}

h2::after {
  content: '';
  position: absolute;
  width: 80px;
  height: 4px;
  background: var(--primary-color);
  bottom: -12px;
  left: 0;
  border-radius: 2px;
}

h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

p {
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-dark);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul {
  list-style: none;
}

.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

section {
  padding: var(--spacing-xxl) 0;
}

/* Center content for all card-like components */
.card, .webinar-card, .resource-card, .blog-card, .testimonial {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.image-container {
  width: 100%;
  overflow: hidden;
  margin-bottom: var(--spacing-md);
  display: flex;
  justify-content: center;
  align-items: center;
}

.image-container img {
  width: 100%;
  object-fit: cover;
  margin: 0 auto;
  transition: transform var(--transition-normal);
}

/* Button Styles */
.btn, button, input[type='submit'] {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-family: var(--heading-font);
  font-weight: 600;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  border: none;
  border-radius: var(--border-radius-md);
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-md);
}

.btn-primary {
  background-color: var(--primary-color);
  color: var(--neutral-white);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  color: var(--neutral-white);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background-color: var(--secondary-color);
  color: var(--neutral-white);
}

.btn-secondary:hover {
  background-color: var(--secondary-dark);
  color: var(--neutral-white);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

/* Header Styles */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--neutral-white);
  box-shadow: var(--shadow-md);
  z-index: 1000;
  padding: var(--spacing-md) 0;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.logo a {
  display: flex;
  align-items: center;
  color: var(--primary-color);
  text-decoration: none;
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--heading-font);
}

.logo h1 {
  margin: 0;
  font-size: 1.8rem;
}

.desktop-menu ul {
  display: flex;
}

.desktop-menu ul li {
  margin-left: var(--spacing-md);
}

.desktop-menu ul li a {
  color: var(--neutral-dark);
  font-family: var(--heading-font);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
  padding: 0.5rem;
  position: relative;
}

.desktop-menu ul li a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: var(--primary-color);
  transition: width var(--transition-normal);
}

.desktop-menu ul li a:hover {
  color: var(--primary-color);
}

.desktop-menu ul li a:hover::after {
  width: 100%;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  box-shadow: none;
}

.mobile-menu-toggle span {
  width: 100%;
  height: 3px;
  background-color: var(--primary-color);
  transition: all var(--transition-fast);
}

.mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--neutral-white);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-md);
  transform: translateY(-100%);
  transition: transform var(--transition-normal);
}

.mobile-menu.active {
  transform: translateY(0);
}

.mobile-menu ul li {
  margin-bottom: var(--spacing-md);
}

.mobile-menu ul li a {
  color: var(--neutral-dark);
  font-family: var(--heading-font);
  font-weight: 600;
  display: block;
  padding: var(--spacing-sm) 0;
}

/* Hero Section */
.hero {
  padding: calc(4 * var(--spacing-xxl)) 0 var(--spacing-xxl);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
  color: var(--neutral-white);
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: var(--spacing-lg);
  color: var(--neutral-white);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
  font-size: 1.25rem;
  max-width: 800px;
  margin: 0 auto var(--spacing-lg);
  color: var(--neutral-white);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
}

/* Mission Section */
.mission {
  background-color: var(--neutral-white);
}

.mission-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-xl);
}

.mission-text {
  flex: 1;
}

.mission-image {
  flex: 1;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transform: perspective(1000px) rotateY(-5deg);
  transition: transform var(--transition-normal);
}

.mission-image:hover {
  transform: perspective(1000px) rotateY(0deg);
}

.mission-image img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* Courses Section */
.courses {
  background-color: var(--neutral-light);
  position: relative;
  overflow: hidden;
}

.courses::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('image/pattern.jpg') repeat;
  opacity: 0.05;
  z-index: 1;
}

.carousel-container {
  position: relative;
  z-index: 2;
  overflow: hidden;
  padding: var(--spacing-md) 0;
}

.carousel-track {
  display: flex;
  gap: var(--spacing-lg);
  transition: transform var(--transition-slow);
  will-change: transform;
}

.card {
  flex: 0 0 calc(33.333% - var(--spacing-lg));
  background-color: var(--neutral-white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.card-image {
  width: 100%;
  height: 250px;
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

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

.card-content {
  padding: var(--spacing-lg);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.card-content h3 {
  margin-bottom: var(--spacing-md);
  text-align: center;
}

.card-content p {
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.carousel-controls {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.carousel-prev, .carousel-next {
  background-color: var(--neutral-white);
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
  padding: 0.5rem 1.5rem;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.carousel-prev:hover, .carousel-next:hover {
  background-color: var(--primary-color);
  color: var(--neutral-white);
}

/* Webinars Section */
.webinars {
  background-color: var(--neutral-white);
}

.webinars-content {
  text-align: center;
}

.webinars-intro {
  max-width: 800px;
  margin: 0 auto var(--spacing-xl);
}

.webinars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.webinar-card {
  background-color: var(--neutral-light);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  padding-bottom: var(--spacing-md);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.webinar-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.webinar-card .image-container {
  width: 100%;
  height: 250px;
}

.webinar-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

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

.webinar-card h3 {
  padding: 0 var(--spacing-md);
  margin-top: var(--spacing-md);
  font-size: 1.3rem;
}

.webinar-card p {
  padding: 0 var(--spacing-md);
}

.webinar-date {
  font-weight: bold;
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
}

/* Sustainability Section */
.sustainability {
  background-color: var(--neutral-light);
  position: relative;
  overflow: hidden;
}

.sustainability-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.sustainability-image {
  flex: 1;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transform: perspective(1000px) rotateY(5deg);
  transition: transform var(--transition-normal);
}

.sustainability-image:hover {
  transform: perspective(1000px) rotateY(0deg);
}

.sustainability-text {
  flex: 1;
}

.sustainability-accordion {
  margin-top: var(--spacing-lg);
}

.accordion-item {
  margin-bottom: var(--spacing-md);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.accordion-header {
  background-color: var(--neutral-white);
  padding: var(--spacing-md);
  font-weight: 600;
  cursor: pointer;
  position: relative;
  font-family: var(--heading-font);
  color: var(--primary-color);
  transition: background-color var(--transition-fast);
}

.accordion-header:hover {
  background-color: var(--neutral-light);
}

.accordion-header::after {
  content: '+';
  position: absolute;
  right: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
}

.accordion-item.active .accordion-header::after {
  content: '-';
}

.accordion-content {
  background-color: var(--neutral-white);
  padding: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal), padding var(--transition-normal);
}

.accordion-item.active .accordion-content {
  padding: var(--spacing-md);
  max-height: 300px;
}

/* Resources Section */
.resources {
  background-color: var(--neutral-white);
  position: relative;
}

.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.resource-card {
  background-color: var(--neutral-light);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.resource-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.resource-card h3 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
}

.resource-card p {
  margin-bottom: var(--spacing-lg);
}

.resource-card a {
  color: var(--secondary-color);
  font-weight: 600;
  font-family: var(--heading-font);
  position: relative;
}

.resource-card a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--secondary-color);
  transition: width var(--transition-normal);
}

.resource-card a:hover::after {
  width: 100%;
}

/* Insights Section */
.insights {
  background-color: var(--neutral-light);
  position: relative;
}

.insights-content {
  max-width: 1000px;
  margin: 0 auto;
}

.insights-tabs {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.tab-button {
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: var(--neutral-white);
  border: none;
  border-radius: var(--border-radius-md);
  font-family: var(--heading-font);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.tab-button:hover {
  background-color: var(--primary-light);
  color: var(--neutral-white);
}

.tab-button.active {
  background-color: var(--primary-color);
  color: var(--neutral-white);
}

.tab-panel {
  display: none;
  animation: fadeIn var(--transition-normal);
}

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

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.tab-panel-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  background-color: var(--neutral-white);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
}

.tab-image {
  flex: 1;
  border-radius: var(--border-radius-md);
  overflow: hidden;
}

.tab-text {
  flex: 1;
}

/* Blog Section */
.blog {
  background-color: var(--neutral-white);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.blog-card {
  background-color: var(--neutral-light);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.blog-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.blog-card .card-image {
  width: 100%;
  height: 250px;
  overflow: hidden;
}

.blog-card .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

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

.blog-card .card-content {
  padding: var(--spacing-lg);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-grow: 1;
}

.blog-date {
  color: var(--neutral-medium);
  font-size: 0.9rem;
  margin-bottom: var(--spacing-sm);
}

.blog-link {
  margin-top: var(--spacing-md);
  color: var(--primary-color);
  font-weight: 600;
  font-family: var(--heading-font);
  position: relative;
  display: inline-block;
}

.blog-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--primary-color);
  transition: width var(--transition-normal);
}

.blog-link:hover::after {
  width: 100%;
}

.blog-more {
  text-align: center;
  margin-top: var(--spacing-xl);
}

/* Careers Section */
.careers {
  background-color: var(--neutral-light);
  position: relative;
}

.careers-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.careers-text {
  flex: 1;
}

.careers-image {
  flex: 1;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transform: perspective(1000px) rotateY(-5deg);
  transition: transform var(--transition-normal);
}

.careers-image:hover {
  transform: perspective(1000px) rotateY(0deg);
}

.testimonials {
  text-align: center;
}

.testimonial-carousel {
  position: relative;
  overflow: hidden;
  padding: var(--spacing-md) 0;
}

.testimonial-track {
  display: flex;
  transition: transform var(--transition-slow);
  gap: var(--spacing-lg);
}

.testimonial {
  flex: 0 0 calc(100% - var(--spacing-lg));
  background-color: var(--neutral-white);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  margin: var(--spacing-md);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.testimonial p {
  font-style: italic;
  margin-bottom: var(--spacing-lg);
  position: relative;
  text-align: center;
}

.testimonial p::before, .testimonial p::after {
  content: '"';
  color: var(--primary-light);
  font-size: 2rem;
  font-family: serif;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.testimonial-author img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--primary-color);
}

.testimonial-author h4 {
  margin-bottom: 0;
  color: var(--primary-color);
}

.testimonial-author p {
  margin-bottom: 0;
  font-style: normal;
  font-size: 0.9rem;
  color: var(--neutral-medium);
}

/* Contact Section */
.contact {
  background-color: var(--neutral-white);
}

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

.contact-form-container {
  background-color: var(--neutral-light);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
}

.contact-form {
  margin-top: var(--spacing-lg);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-family: var(--heading-font);
  font-weight: 600;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid #ddd;
  border-radius: var(--border-radius-md);
  font-family: var(--body-font);
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
}

.contact-info {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-details {
  margin-bottom: var(--spacing-lg);
}

.contact-details h3 {
  color: var(--primary-color);
}

.contact-details p {
  margin-bottom: var(--spacing-sm);
}

.contact-map {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

/* Footer */
.footer {
  background-color: var(--neutral-dark);
  color: var(--neutral-white);
  padding: var(--spacing-xl) 0;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
}

.footer-logo h2 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}

.footer-logo p {
  color: var(--neutral-light);
  opacity: 0.8;
}

.footer-navigation h3,
.footer-legal h3,
.footer-social h3 {
  color: var(--neutral-white);
  margin-bottom: var(--spacing-md);
}

.footer-navigation ul li,
.footer-legal ul li,
.footer-social ul li {
  margin-bottom: var(--spacing-sm);
}

.footer-navigation ul li a,
.footer-legal ul li a,
.footer-social ul li a {
  color: var(--neutral-light);
  opacity: 0.8;
  transition: color var(--transition-fast), opacity var(--transition-fast);
}

.footer-navigation ul li a:hover,
.footer-legal ul li a:hover,
.footer-social ul li a:hover {
  color: var(--primary-color);
  opacity: 1;
}

.footer-social ul li a {
  display: flex;
  align-items: center;
}

.footer-social ul li a::before {
  margin-right: var(--spacing-sm);
  font-size: 1.2rem;
}

.footer-bottom {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

/* Success Page */
.success-page {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  text-align: center;
  padding: var(--spacing-lg);
}

.success-page h1 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-lg);
}

.success-page p {
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
}

/* Privacy and Terms Pages */
.privacy-page, .terms-page, .about-page, .contacts-page {
  padding-top: 100px;
}

/* 3D Effects and Animations */
@keyframes float {
  0% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
  100% {
    transform: translateY(0);
  }
}

.mission-image,
.sustainability-image,
.careers-image {
  animation: float 6s ease-in-out infinite;
}

.card,
.webinar-card,
.resource-card,
.blog-card {
  transform-style: preserve-3d;
  perspective: 1000px;
}

.card:hover,
.webinar-card:hover,
.resource-card:hover,
.blog-card:hover {
  transform: translateY(-10px) rotateX(5deg);
}

.btn, button {
  transform-style: preserve-3d;
  perspective: 500px;
}

.btn:active, button:active {
  transform: translateY(2px) scale(0.98);
}

/* Responsive Design */
@media (max-width: 1200px) {
  :root {
    --spacing-xxl: 4rem;
  }
  
  h1 {
    font-size: 2.2rem;
  }
  
  h2 {
    font-size: 1.8rem;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .mission-content,
  .sustainability-content,
  .careers-content,
  .tab-panel-content {
    flex-direction: column;
  }
  
  .mission-image,
  .sustainability-image,
  .careers-image,
  .tab-image {
    width: 100%;
    max-width: 500px;
    margin: 0 auto var(--spacing-lg);
  }
  
  .card,
  .testimonial {
    flex: 0 0 calc(50% - var(--spacing-lg));
  }
}

@media (max-width: 992px) {
  :root {
    --spacing-xxl: 3rem;
  }
  
  .desktop-menu {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .mobile-menu {
    display: none;
  }
  .mobile-menu.active{
    display: block;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
  }
  
  .carousel-track {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .card {
    flex: 0 0 calc(50% - var(--spacing-lg));
  }
}

@media (max-width: 768px) {
  :root {
    --spacing-xl: 2rem;
    --spacing-xxl: 2.5rem;
  }
  
  h1 {
    font-size: 1.8rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  h3 {
    font-size: 1.3rem;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero p {
    font-size: 1.1rem;
  }
  
  .card,
  .testimonial {
    flex: 0 0 100%;
  }
  
  .webinar-card,
  .resource-card {
    max-width: 400px;
    margin: 0 auto;
  }
  
  .testimonial-author {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 576px) {
  :root {
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
  }
  
  .header {
    padding: var(--spacing-sm) 0;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-logo,
  .footer-navigation,
  .footer-legal,
  .footer-social {
    margin-bottom: var(--spacing-lg);
  }
  
  h2::after {
    left: 50%;
    transform: translateX(-50%);
  }
  
  .btn, button {
    padding: 0.6rem 1.2rem;
  }
}