:root {
  /* Color palette */
  --color-primary: #2563eb;
  --color-primary-dark: #1e40af;
  --color-primary-light: #3b82f6;
  --color-secondary: #6b21a8;
  --color-secondary-dark: #4c1d95;
  --color-secondary-light: #8b5cf6;
  
  --color-text: #1e293b;
  --color-text-light: #64748b;
  --color-text-lighter: #94a3b8;
  
  --color-background: #ffffff;
  --color-background-alt: #f8fafc;
  --color-background-dark: #f1f5f9;
  
  --color-border: #e2e8f0;
  --color-border-dark: #cbd5e1;
  
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  
  /* Typography */
  --font-heading: 'Inter', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;
  
  /* Border radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --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);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;
}

/* Base styles */
html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-background);
  line-height: 1.5;
  margin: 0;
  padding: 0;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  margin-top: 0;
  line-height: 1.2;
}

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

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

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

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Buttons */
.btn,
button,
input[type='submit'] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 1rem;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: white;
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  background-color: var(--color-secondary-dark);
  color: white;
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Form elements */
.form-group {
  margin-bottom: var(--spacing-lg);
}

input,
textarea,
select {
  width: 100%;
  padding: 0.75rem;
  font-family: var(--font-body);
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: white;
  transition: border-color var(--transition-fast);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
  color: var(--color-text);
}

/* Toggle switch */
.toggle-container {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.toggle {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 34px;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-border-dark);
  transition: var(--transition-normal);
  border-radius: 34px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 26px;
  width: 26px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: var(--transition-normal);
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--color-primary);
}

input:checked + .slider:before {
  transform: translateX(26px);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-md) 0;
}

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

.logo h1 {
  margin: 0;
  font-size: 1.5rem;
}

.logo a {
  color: var(--color-text);
  text-decoration: none;
}

.desktop-nav ul {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  padding: 0;
  margin: 0;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 20px;
  cursor: pointer;
}

.mobile-menu-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--color-text);
  transition: var(--transition-fast);
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 70px;
  left: 0;
  width: 100%;
  background-color: white;
  box-shadow: var(--shadow-md);
  padding: var(--spacing-lg);
  z-index: 999;
}

.mobile-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

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

.mobile-nav a {
  display: block;
  padding: var(--spacing-md);
  font-size: 1.1rem;
  font-weight: 500;
  text-align: center;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.mobile-nav a:hover {
  background-color: var(--color-background-dark);
  text-decoration: none;
}

/* Hero Section */
.hero {
  position: relative;
  padding: 180px 0 100px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: white;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.5));
  z-index: 1;
}

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

.hero h1 {
  font-size: 3rem;
  margin-bottom: var(--spacing-lg);
  color: white;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xl);
  color: white;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

/* About Section */
.about {
  padding: var(--spacing-xxl) 0;
  background-color: var(--color-background);
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  font-size: 2.5rem;
  color: var(--color-text);
}

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

.about-text {
  flex: 1 1 500px;
}

.about-image {
  flex: 1 1 400px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.about-image img {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  object-fit: cover;
}

/* Community Section */
.community {
  padding: var(--spacing-xxl) 0;
  background-color: var(--color-background-alt);
}

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

.community-text {
  flex: 1 1 500px;
}

.community-image {
  flex: 1 1 400px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.community-image img {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  object-fit: cover;
}

.community-members {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

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

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

.card-image {
  width: 100%;
  height: 250px;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

.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);
  text-align: center;
}

.card-content h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

/* External Resources Section */
.external-resources {
  padding: var(--spacing-xxl) 0;
  background-color: var(--color-background);
}

.section-description {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--spacing-xl);
  color: var(--color-text-light);
  font-size: 1.1rem;
}

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

.resource-card {
  padding: var(--spacing-lg);
  background-color: var(--color-background-alt);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.resource-card h3 {
  margin-bottom: var(--spacing-md);
  font-size: 1.2rem;
}

.resource-link {
  display: inline-block;
  margin-top: var(--spacing-md);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.resource-link:hover {
  color: var(--color-primary-dark);
}

/* Press Section */
.press {
  padding: var(--spacing-xxl) 0;
  background-color: var(--color-background-alt);
}

.press-content {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xl);
}

.press-text {
  flex: 1 1 400px;
}

.press-coverage {
  flex: 1 1 500px;
}

.press-item {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  background-color: white;
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.press-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.press-logo {
  flex: 0 0 100px;
  margin-right: var(--spacing-lg);
}

.press-logo img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
}

.press-quote p {
  font-style: italic;
  margin-bottom: var(--spacing-sm);
}

.press-quote span {
  display: block;
  color: var(--color-text-light);
  font-size: 0.9rem;
}

/* Gallery Section */
.gallery {
  padding: var(--spacing-xxl) 0;
  background-color: var(--color-background);
}

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

.gallery-item {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background-color: white;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.image-container {
  height: 250px;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

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

.gallery-item:hover .image-container img {
  transform: scale(1.05);
}

.gallery-caption {
  padding: var(--spacing-lg);
  text-align: center;
}

.gallery-caption h3 {
  margin-bottom: var(--spacing-sm);
  font-size: 1.2rem;
}

/* Contact Section */
.contact {
  padding: var(--spacing-xxl) 0;
  background-color: var(--color-background-alt);
}

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

.contact-info {
  flex: 1 1 400px;
}

.contact-form {
  flex: 1 1 500px;
  background-color: white;
  padding: var(--spacing-xl);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.contact-details {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.contact-item h4 {
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

/* Footer */
.footer {
  padding: var(--spacing-xxl) 0 var(--spacing-lg);
  background-color: #111827;
  color: white;
}

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

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

.footer-logo h3 {
  margin-bottom: var(--spacing-sm);
  color: white;
}

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

.footer h4 {
  margin-bottom: var(--spacing-lg);
  color: white;
}

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

.footer-nav li {
  margin-bottom: var(--spacing-sm);
}

.footer-nav a {
  color: #e2e8f0;
  transition: color var(--transition-fast);
}

.footer-nav a:hover {
  color: white;
  text-decoration: none;
}

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

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.social-links a {
  color: #e2e8f0;
  transition: color var(--transition-fast);
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  background-color: rgba(255, 255, 255, 0.1);
}

.social-links a:hover {
  color: white;
  background-color: rgba(255, 255, 255, 0.2);
  text-decoration: none;
}

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

.footer-newsletter .form-group {
  display: flex;
  gap: var(--spacing-sm);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #94a3b8;
  font-size: 0.9rem;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 2000;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background-color: white;
  padding: var(--spacing-xl);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  max-width: 500px;
  width: 90%;
  position: relative;
  text-align: center;
}

.modal-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  font-size: 1.5rem;
  cursor: pointer;
}

.modal-confirm {
  margin-top: var(--spacing-lg);
}

/* Success Page */
.success-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-background-alt);
}

.success-content {
  text-align: center;
  max-width: 600px;
  padding: var(--spacing-xl);
  background-color: white;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

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

.success-content p {
  margin-bottom: var(--spacing-xl);
}

/* Terms & Privacy Pages */
.terms-page,
.privacy-page {
  padding-top: 100px;
  padding-bottom: var(--spacing-xxl);
}

.terms-content,
.privacy-content {
  max-width: 800px;
  margin: 0 auto;
  background-color: white;
  padding: var(--spacing-xl);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.terms-content h1,
.privacy-content h1 {
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

.terms-content h2,
.privacy-content h2 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

/* Utility classes */
.text-center {
  text-align: center;
}

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

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

/* Responsive styles */
@media (max-width: 992px) {
  .desktop-nav {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 15px;
  }
  
  .hero {
    padding: 150px 0 80px;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero p {
    font-size: 1.1rem;
  }
  
  .contact-details {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 576px) {
  html {
    font-size: 14px;
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .hero-buttons .btn {
    width: 100%;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .press-item {
    flex-direction: column;
    text-align: center;
  }
  
  .press-logo {
    margin-right: 0;
    margin-bottom: var(--spacing-md);
  }
  
  .footer-content > div {
    flex: 1 1 100%;
  }
}