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

:root {
  --primary-black: #000000;
  --primary-white: #ffffff;
  --gray-100: #f5f5f5;
  --gray-200: #e5e5e5;
  --gray-300: #d4d4d4;
  --gray-400: #a3a3a3;
  --gray-600: #525252;
  --gray-800: #262626;
  --gray-900: #171717;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  line-height: 1.6;
  color: var(--primary-black);
  background-color: var(--primary-white);
}

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

header {
  background-color: var(--primary-black);
  color: var(--primary-white);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 2px solid var(--primary-white);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--primary-white);
  letter-spacing: 1px;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
  align-items: center;
}

nav a {
  color: var(--primary-white);
  text-decoration: none;
  font-weight: 500;
  transition: opacity 0.3s;
  padding: 0.5rem 0;
}

nav a:hover {
  opacity: 0.7;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: 2px solid var(--primary-white);
  color: var(--primary-white);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
}

.hero {
  background: linear-gradient(135deg, var(--gray-900) 0%, var(--primary-black) 100%);
  color: var(--primary-white);
  padding: 6rem 0;
  text-align: center;
  border-bottom: 3px solid var(--primary-white);
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  font-weight: 800;
  letter-spacing: 2px;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

.btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  background-color: var(--primary-white);
  color: var(--primary-black);
  text-decoration: none;
  font-weight: 700;
  border: 2px solid var(--primary-white);
  cursor: pointer;
  transition: all 0.3s;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

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

.btn-secondary {
  background-color: var(--primary-black);
  color: var(--primary-white);
  border: 2px solid var(--primary-white);
}

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

.section {
  padding: 4rem 0;
}

.section-dark {
  background-color: var(--gray-900);
  color: var(--primary-white);
}

.section-title {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 3rem;
  font-weight: 700;
  letter-spacing: 1px;
}

.featured-games {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.game-card {
  border: 2px solid var(--primary-black);
  padding: 2rem;
  text-align: center;
  background-color: var(--primary-white);
  transition: transform 0.3s;
}

.game-card:hover {
  transform: translateY(-5px);
}

.game-card-dark {
  background-color: var(--gray-800);
  border: 2px solid var(--primary-white);
}

.game-image {
  width: 100%;
  height: 200px;
  background-color: var(--gray-300);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  border: 2px solid var(--primary-black);
}

.game-image-dark {
  background-color: var(--gray-600);
  border-color: var(--primary-white);
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  font-size: 1.1rem;
  line-height: 1.8;
}

.testimonials {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.testimonial-card {
  border: 2px solid var(--primary-black);
  padding: 2rem;
  background-color: var(--gray-100);
}

.testimonial-text {
  font-style: italic;
  margin-bottom: 1rem;
  line-height: 1.8;
}

.testimonial-author {
  font-weight: 700;
  text-align: right;
}

.cta-section {
  background-color: var(--primary-black);
  color: var(--primary-white);
  padding: 4rem 0;
  text-align: center;
  border-top: 3px solid var(--primary-white);
  border-bottom: 3px solid var(--primary-white);
}

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

.disclaimer-section {
  background-color: var(--gray-100);
  padding: 3rem 0;
  border-top: 2px solid var(--primary-black);
}

.disclaimer-content {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.age-restriction {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-black);
  margin-bottom: 1.5rem;
  padding: 1rem;
  border: 3px solid var(--primary-black);
  display: inline-block;
}

.disclaimer-text {
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}

.support-organizations {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 3rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.org-logo {
  font-size: 0.9rem;
  font-weight: 600;
  padding: 1rem 1.5rem;
  border: 2px solid var(--primary-black);
  background-color: var(--primary-white);
}

footer {
  background-color: var(--primary-black);
  color: var(--primary-white);
  padding: 3rem 0 1rem;
  border-top: 3px solid var(--primary-white);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-section h3 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
  font-weight: 700;
  letter-spacing: 1px;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: var(--primary-white);
  text-decoration: none;
  opacity: 0.8;
  transition: opacity 0.3s;
}

.footer-section a:hover {
  opacity: 1;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--gray-600);
  opacity: 0.8;
}

.modal {
  display: none;
  position: fixed;
  z-index: 2000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  overflow: auto;
}

.modal-content {
  background-color: var(--primary-white);
  margin: 5% auto;
  padding: 0;
  border: 3px solid var(--primary-black);
  width: 90%;
  max-width: 500px;
  position: relative;
}

.modal-header {
  background-color: var(--primary-black);
  color: var(--primary-white);
  padding: 2rem;
  text-align: center;
}

.modal-header h2 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.modal-body {
  padding: 2rem;
}

.close {
  color: var(--primary-white);
  position: absolute;
  right: 1rem;
  top: 1rem;
  font-size: 2rem;
  font-weight: bold;
  cursor: pointer;
  background: none;
  border: none;
}

.close:hover {
  opacity: 0.7;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid var(--primary-black);
  font-size: 1rem;
  font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--gray-600);
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.checkbox-group input[type="checkbox"] {
  width: auto;
  margin-top: 0.25rem;
}

.checkbox-group label {
  font-weight: normal;
  font-size: 0.9rem;
}

.promo-code {
  background-color: var(--gray-100);
  padding: 1rem;
  text-align: center;
  margin-bottom: 1.5rem;
  border: 2px solid var(--primary-black);
}

.promo-code-text {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 2px;
}

.contact-form {
  max-width: 600px;
  margin: 2rem auto;
  padding: 2rem;
  border: 2px solid var(--primary-black);
  background-color: var(--gray-100);
}

.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.resource-card {
  border: 2px solid var(--primary-white);
  padding: 2rem;
  background-color: var(--gray-800);
}

.resource-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.game-container {
  max-width: 1400px;
  margin: 2rem auto;
  padding: 0 20px;
}

.game-frame {
  width: 100%;
  height: 800px;
  border: 3px solid var(--primary-black);
  background-color: var(--gray-900);
}

.legal-content {
  max-width: 900px;
  margin: 2rem auto;
  padding: 2rem;
  line-height: 1.8;
}

.legal-content h2 {
  font-size: 2rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.legal-content h3 {
  font-size: 1.5rem;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

.legal-content ul,
.legal-content ol {
  margin-left: 2rem;
  margin-bottom: 1rem;
}

.legal-content li {
  margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: block;
  }

  nav ul {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--primary-black);
    padding: 1rem;
    border-top: 2px solid var(--primary-white);
  }

  nav ul.active {
    display: flex;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

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

  .featured-games,
  .testimonials,
  .resources-grid {
    grid-template-columns: 1fr;
  }

  .support-organizations {
    gap: 1rem;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }

  .game-frame {
    height: 500px;
  }
}

@media (max-width: 480px) {
  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
  }

  .hero {
    padding: 3rem 0;
  }

  .section {
    padding: 2rem 0;
  }
}