/* Base Variables */
:root {
  /* Color Palette */
  --primary-color: #6b9ac4;
  --primary-dark: #4f7ca8;
  --primary-light: #8cb3d9;
  --secondary-color: #f2a477;
  --secondary-dark: #e07e45;
  --secondary-light: #ffc29e;
  --accent-color: #d3acd2;
  --accent-dark: #b283b1;
  --accent-light: #e8cbff;
  --success-color: #7fd8a6;
  --error-color: #f47c7c;
  --warning-color: #ffd166;
  --info-color: #a2d2ff;
  
  /* Neutrals */
  --white: #ffffff;
  --gray-100: #f8f9fa;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-400: #ced4da;
  --gray-500: #adb5bd;
  --gray-600: #6c757d;
  --gray-700: #495057;
  --gray-800: #343a40;
  --gray-900: #212529;
  --black: #000000;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  --gradient-secondary: linear-gradient(135deg, var(--secondary-color), var(--secondary-light));
  --gradient-accent: linear-gradient(135deg, var(--accent-color), var(--accent-light));
  --gradient-overlay: linear-gradient(to bottom, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.7));
  
  /* Typography */
  --font-heading: 'Inter', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-size-base: 1rem;
  --font-size-sm: 0.875rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --line-height-tight: 1.2;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 2;
  
  /* Spacing */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  --spacing-24: 6rem;
  
  /* Borders */
  --border-radius-sm: 0.125rem;
  --border-radius: 0.25rem;
  --border-radius-md: 0.375rem;
  --border-radius-lg: 0.5rem;
  --border-radius-xl: 0.75rem;
  --border-radius-2xl: 1rem;
  --border-radius-3xl: 1.5rem;
  --border-radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
  
  /* Z-index */
  --z-0: 0;
  --z-10: 10;
  --z-20: 20;
  --z-30: 30;
  --z-40: 40;
  --z-50: 50;
  --z-auto: auto;
  
  /* Transitions */
  --transition-fast: 150ms;
  --transition-normal: 300ms;
  --transition-slow: 500ms;
  --transition-ease: cubic-bezier(0.645, 0.045, 0.355, 1);
  --transition-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Container */
  --container-max-width: 1200px;
  --container-padding: 1rem;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--gray-800);
  background-color: var(--white);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--gray-900);
  margin-bottom: var(--spacing-4);
}

h1 {
  font-size: var(--font-size-5xl);
}

h2 {
  font-size: var(--font-size-4xl);
}

h3 {
  font-size: var(--font-size-2xl);
}

h4 {
  font-size: var(--font-size-xl);
}

p {
  margin-bottom: var(--spacing-4);
}

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

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

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

ul {
  list-style-type: none;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* Buttons */
.btn, 
button, 
input[type='submit'] {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-base);
  line-height: 1;
  text-align: center;
  text-decoration: none;
  padding: var(--spacing-3) var(--spacing-6);
  border-radius: var(--border-radius-lg);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-normal) var(--transition-bounce);
  box-shadow: var(--shadow);
}

.btn:hover, 
button:hover, 
input[type='submit']:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.btn:active, 
button:active, 
input[type='submit']:active {
  transform: translateY(1px);
  box-shadow: var(--shadow-sm);
}

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

.btn-primary:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
  color: var(--white);
}

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

.btn-secondary:hover {
  background-color: var(--secondary-dark);
  border-color: var(--secondary-dark);
  color: var(--white);
}

.btn-outline {
  background-color: transparent;
  color: var(--primary-color);
  border-color: var(--primary-color);
}

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

/* Section Styles */
section {
  padding: var(--spacing-16) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-12);
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: var(--gradient-primary);
  margin: var(--spacing-4) auto 0;
  border-radius: var(--border-radius-full);
}

.section-description {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--spacing-12);
  font-size: var(--font-size-lg);
  color: var(--gray-600);
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-50);
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all var(--transition-normal) var(--transition-ease);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-4) 0;
}

.logo img {
  height: 60px;
  width: auto;
}

.main-nav {
  display: flex;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-6);
}

.nav-links a {
  color: var(--gray-800);
  font-weight: var(--font-weight-medium);
  position: relative;
}

.nav-links a:hover {
  color: var(--primary-color);
  text-decoration: none;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: width var(--transition-normal) var(--transition-ease);
}

.nav-links a:hover::after {
  width: 100%;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
  cursor: pointer;
  z-index: var(--z-50);
}

.mobile-menu-toggle span {
  width: 100%;
  height: 3px;
  background-color: var(--gray-800);
  border-radius: var(--border-radius-full);
  transition: all var(--transition-normal) var(--transition-ease);
}

/* Hero Section */
.hero {
  min-height: 600px;
  display: flex;
  align-items: center;
  position: relative;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding-top: 120px;
  padding-bottom: var(--spacing-20);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-overlay);
  z-index: 1;
}

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

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.hero h1 {
  color: var(--white);
  margin-bottom: var(--spacing-6);
  font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-5xl));
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  animation: fadeInUp 1.2s var(--transition-bounce) both;
}

.hero p {
  color: var(--white);
  font-size: clamp(var(--font-size-lg), 3vw, var(--font-size-2xl));
  margin-bottom: var(--spacing-8);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  animation: fadeInUp 1.2s var(--transition-bounce) 0.2s both;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: var(--spacing-4);
  animation: fadeInUp 1.2s var(--transition-bounce) 0.4s both;
}

/* About Section */
.about-section {
  background-color: var(--gray-100);
}

.about-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-12);
}

.about-image {
  flex: 1;
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

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

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

.about-text {
  flex: 1;
}

.about-text h3 {
  margin-bottom: var(--spacing-6);
}

/* Courses Section */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-8);
}

.card {
  background-color: var(--white);
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition-normal) var(--transition-ease), box-shadow var(--transition-normal) var(--transition-ease);
  display: flex;
  flex-direction: column;
  align-items: center;
}

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

.card-image {
  width: 100%;
  height: 230px;
  overflow: hidden;
}

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

.card:hover .card-image img {
  transform: scale(1.1);
}

.card-content {
  padding: var(--spacing-6);
  flex: 1;
  display: flex;
  flex-direction: column;
  text-align: center;
}

.card-content h3 {
  color: var(--gray-900);
  margin-bottom: var(--spacing-4);
}

.card-content p {
  color: var(--gray-700);
  margin-bottom: var(--spacing-6);
  flex: 1;
}

.card-content .btn {
  align-self: center;
  margin-top: auto;
}

/* Statistics Section */
.statistics-section {
  background: var(--gradient-primary);
  color: var(--white);
  text-align: center;
  padding: var(--spacing-20) 0;
}

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

.statistics-section .section-title::after {
  background: var(--white);
}

.statistics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-8);
}

.stat-item {
  padding: var(--spacing-6);
}

.stat-number {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-3);
  line-height: 1;
}

.stat-label {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
}

/* Resources Section */
.resources-section {
  background-color: var(--gray-100);
}

.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-6);
}

.resource-card {
  background-color: var(--white);
  padding: var(--spacing-6);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow);
  transition: transform var(--transition-normal) var(--transition-ease), box-shadow var(--transition-normal) var(--transition-ease);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.resource-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.resource-card h3 {
  margin-bottom: var(--spacing-4);
  color: var(--primary-color);
}

.resource-card p {
  margin-bottom: var(--spacing-6);
  flex: 1;
}

.resource-link {
  font-weight: var(--font-weight-medium);
  color: var(--secondary-color);
  position: relative;
  padding-bottom: var(--spacing-1);
  transition: all var(--transition-normal) var(--transition-ease);
}

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

.resource-link:hover {
  color: var(--secondary-dark);
  text-decoration: none;
}

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

/* Testimonials Section */
.testimonials-section {
  background-color: var(--white);
}

.testimonials-slider {
  position: relative;
  overflow: hidden;
  padding: 0 var(--spacing-8);
}

.testimonials-track {
  display: flex;
  transition: transform var(--transition-normal) var(--transition-ease);
}

.testimonial-card {
  flex: 0 0 100%;
  min-width: 100%;
  padding: var(--spacing-8);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.testimonial-card .card-image {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: var(--spacing-6);
  border: 4px solid var(--primary-light);
}

.testimonial-text {
  margin-bottom: var(--spacing-6);
  font-style: italic;
  color: var(--gray-700);
  position: relative;
}

.testimonial-text::before {
  content: '"';
  position: absolute;
  top: -20px;
  left: -10px;
  font-size: 5rem;
  color: var(--gray-300);
  line-height: 1;
  z-index: -1;
}

.testimonial-author h4 {
  margin-bottom: var(--spacing-1);
  color: var(--gray-800);
}

.testimonial-author p {
  color: var(--gray-600);
  font-size: var(--font-size-sm);
}

.slider-controls {
  display: flex;
  justify-content: center;
  gap: var(--spacing-4);
  margin-top: var(--spacing-8);
}

.prev-button,
.next-button {
  background-color: var(--white);
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-normal) var(--transition-ease);
}

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

/* Team Section */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--spacing-8);
}

.team-card {
  background-color: var(--white);
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition-normal) var(--transition-ease), box-shadow var(--transition-normal) var(--transition-ease);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

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

.team-card .card-image {
  width: 100%;
  height: 300px;
  overflow: hidden;
}

.team-position {
  color: var(--primary-color);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-4);
}

.team-social {
  display: flex;
  justify-content: center;
  gap: var(--spacing-3);
  margin-top: var(--spacing-4);
}

.social-link {
  color: var(--gray-600);
  transition: color var(--transition-normal) var(--transition-ease);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  padding: var(--spacing-2);
  border-radius: var(--border-radius);
  background-color: var(--gray-100);
}

.social-link:hover {
  color: var(--primary-color);
  background-color: var(--gray-200);
  text-decoration: none;
}

/* Research Section */
.research-section {
  background-color: var(--gray-100);
}

.research-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-12);
}

.research-text {
  flex: 1;
}

.research-image {
  flex: 1;
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

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

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

.research-stats {
  display: flex;
  justify-content: space-between;
  margin-top: var(--spacing-8);
}

.research-stats .stat-item {
  background-color: var(--white);
  padding: var(--spacing-4);
  border-radius: var(--border-radius-lg);
  text-align: center;
  box-shadow: var(--shadow);
  flex: 1;
  margin: 0 var(--spacing-2);
}

.research-stats h4 {
  color: var(--primary-color);
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-2);
}

.research-stats p {
  font-size: var(--font-size-sm);
  color: var(--gray-600);
  margin-bottom: 0;
}

/* Blog Section */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-8);
}

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

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

.blog-date {
  color: var(--gray-600);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-2);
}

.blog-card .btn {
  margin-top: auto;
}

/* Community Section */
.community-section {
  background-color: var(--white);
}

.community-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-12);
}

.community-text {
  flex: 1;
}

.community-image {
  flex: 1;
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

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

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

.community-cta {
  margin-top: var(--spacing-8);
}

/* Media Section */
.media-section {
  background-color: var(--gray-100);
}

.media-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-6);
}

.gallery-item {
  position: relative;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  height: 200px;
}

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

.gallery-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.7);
  color: var(--white);
  padding: var(--spacing-4);
  transform: translateY(100%);
  transition: transform var(--transition-normal) var(--transition-ease);
}

.gallery-item:hover img {
  transform: scale(1.1);
}

.gallery-item:hover .gallery-caption {
  transform: translateY(0);
}

.gallery-caption h4 {
  color: var(--white);
  margin-bottom: var(--spacing-1);
  font-size: var(--font-size-lg);
}

.gallery-caption p {
  font-size: var(--font-size-sm);
  margin-bottom: 0;
}

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

.contact-content {
  display: flex;
  gap: var(--spacing-12);
}

.contact-info {
  flex: 1;
}

.contact-form-container {
  flex: 1;
}

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

.contact-list li {
  display: flex;
  align-items: flex-start;
  margin-bottom: var(--spacing-6);
}

.contact-list .icon {
  font-size: var(--font-size-2xl);
  margin-right: var(--spacing-4);
  color: var(--primary-color);
}

.contact-list h4 {
  margin-bottom: var(--spacing-1);
  color: var(--gray-800);
}

.contact-list p {
  color: var(--gray-600);
  margin-bottom: var(--spacing-1);
}

.contact-form {
  background-color: var(--gray-100);
  padding: var(--spacing-8);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: var(--spacing-6);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-2);
  font-weight: var(--font-weight-medium);
  color: var(--gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-3);
  border: 1px solid var(--gray-300);
  border-radius: var(--border-radius);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  transition: border-color var(--transition-normal) var(--transition-ease), box-shadow var(--transition-normal) var(--transition-ease);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(107, 154, 196, 0.2);
}

/* Footer */
.site-footer {
  background-color: var(--gray-800);
  color: var(--gray-300);
  padding: var(--spacing-16) 0 var(--spacing-8);
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-12);
  margin-bottom: var(--spacing-12);
}

.footer-logo {
  flex: 1 1 300px;
}

.footer-logo img {
  margin-bottom: var(--spacing-4);
  max-width: 160px;
}

.footer-links {
  flex: 2 1 600px;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-12);
}

.footer-column {
  flex: 1 1 200px;
}

.footer-column h3 {
  color: var(--white);
  margin-bottom: var(--spacing-6);
  font-size: var(--font-size-lg);
}

.footer-column ul {
  list-style: none;
  padding: 0;
}

.footer-column li {
  margin-bottom: var(--spacing-3);
}

.footer-column a {
  color: var(--gray-400);
  transition: color var(--transition-normal) var(--transition-ease);
}

.footer-column a:hover {
  color: var(--white);
  text-decoration: none;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-6);
}

.social-links a {
  color: var(--gray-400);
  font-size: var(--font-size-base);
  transition: color var(--transition-normal) var(--transition-ease);
  display: inline-block;
}

.social-links a:hover {
  color: var(--white);
  text-decoration: none;
}

.newsletter h3 {
  margin-top: var(--spacing-8);
}

.newsletter-form {
  display: flex;
  gap: var(--spacing-2);
}

.newsletter-form input {
  flex: 1;
  padding: var(--spacing-3);
  border: none;
  border-radius: var(--border-radius);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
}

.newsletter-form input:focus {
  outline: none;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-8);
  border-top: 1px solid var(--gray-700);
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  z-index: var(--z-50);
  justify-content: center;
  align-items: center;
}

.modal-content {
  background-color: var(--white);
  padding: var(--spacing-8);
  border-radius: var(--border-radius-xl);
  max-width: 500px;
  width: 90%;
  position: relative;
}

.close-modal {
  position: absolute;
  top: var(--spacing-4);
  right: var(--spacing-4);
  font-size: var(--font-size-xl);
  cursor: pointer;
}

.success-message {
  text-align: center;
}

.success-message img {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-6);
}

.success-message h3 {
  margin-bottom: var(--spacing-4);
}

.success-message p {
  margin-bottom: var(--spacing-6);
}

/* Additional Pages */
.success-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-12);
}

.privacy-page,
.terms-page {
  padding-top: 100px;
}

.privacy-content,
.terms-content {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-12) var(--spacing-4);
}

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

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}

/* Responsive */
@media (max-width: 992px) {
  .about-content,
  .research-content,
  .community-content,
  .contact-content {
    flex-direction: column;
    gap: var(--spacing-8);
  }
  
  .research-stats {
    flex-direction: column;
    gap: var(--spacing-4);
  }
  
  .research-stats .stat-item {
    margin: 0 0 var(--spacing-4) 0;
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: var(--spacing-4);
  }
  
  .hero-buttons .btn {
    width: 100%;
  }
}

@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: flex;
  }
  
  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    height: 100vh;
    background-color: var(--white);
    box-shadow: var(--shadow-xl);
    transition: right var(--transition-normal) var(--transition-ease);
    flex-direction: column;
    justify-content: center;
    padding: var(--spacing-8);
    z-index: var(--z-40);
  }
  
  .main-nav.active {
    right: 0;
  }
  
  .nav-links {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .nav-links li {
    margin-bottom: var(--spacing-4);
    width: 100%;
  }
  
  .nav-links a {
    display: block;
    padding: var(--spacing-2) 0;
    width: 100%;
  }
  
  .mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
  
  .footer-content {
    flex-direction: column;
    gap: var(--spacing-8);
  }
  
  .statistics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  section {
    padding: var(--spacing-12) 0;
  }
  
  .section-title {
    margin-bottom: var(--spacing-8);
  }
  
  .section-description {
    margin-bottom: var(--spacing-8);
  }
  
  .statistics-grid {
    grid-template-columns: 1fr;
  }
  
  .media-gallery {
    grid-template-columns: 1fr;
  }
  
  .newsletter-form {
    flex-direction: column;
  }
  
  .newsletter-form input,
  .newsletter-form .btn {
    width: 100%;
  }
}

*{
  opacity: 1 !important;
}