:root {
  --primary: #06b6d4;
  --primary-glow: rgba(6, 182, 212, 0.5);
  --secondary: #0891b2;
  --accent: #67e8f9;
  --accent-glow: rgba(103, 232, 249, 0.3);
  --bg-from: #042f2e;
  --bg-via: #134e4a;
  --bg-to: #021716;
  --card-bg: rgba(19, 78, 74, 0.6);
  --card-border: rgba(6, 182, 212, 0.25);
  --text-primary: #ffffff;
  --text-secondary: #d1d5db;
  --transition: 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

body {
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  font-weight: 400;
  background: linear-gradient(135deg, var(--bg-from), var(--bg-via), var(--bg-to));
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-weight: 700;
  line-height: 1.2;
}

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

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

header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(4, 47, 46, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--card-border);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.logo { font-size: 24px; font-weight: 700; color: var(--primary); text-shadow: 0 0 20px var(--primary-glow); }

.header-right { display: flex; align-items: center; gap: 20px; }

nav ul { display: flex; list-style: none; gap: 25px; }
nav a { color: var(--text-primary); font-weight: 500; transition: var(--transition); }
nav a:hover { color: var(--accent); transform: scale(1.05); }

.age-badge {
  background: linear-gradient(135deg, #dc2626, #991b1b);
  color: #fff;
  padding: 6px 14px;
  border-radius: 20px;
  font-weight: 700;
  font-size: 14px;
  box-shadow: 0 0 15px rgba(220, 38, 38, 0.5);
  animation: pulse 2s infinite;
}

.age-badge-large {
  font-size: 20px;
  padding: 12px 24px;
  box-shadow: 0 0 30px rgba(220, 38, 38, 0.7);
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.9; transform: scale(1.05); }
}

.mobile-toggle { display: none; background: none; border: none; color: #fff; font-size: 28px; cursor: pointer; }

@media (max-width: 768px) {
  .mobile-toggle { display: block; }
  nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: rgba(4, 47, 46, 0.98); padding: 20px; }
  nav.active { display: block; }
  nav ul { flex-direction: column; gap: 15px; }
}

.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, #1e1b4b, #312e81, #1e3a8a, #1e1b4b);
  background-size: 400% 400%;
  animation: gradientFlow 15s ease infinite;
  overflow: hidden;
  padding: 40px 20px;
}

@keyframes gradientFlow {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 320"><path fill="%2306b6d4" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,165.3C384,171,480,149,576,133.3C672,117,768,107,864,122.7C960,139,1056,181,1152,181.3C1248,181,1344,139,1392,117.3L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
  background-size: cover;
  opacity: 0.3;
}

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

.hero-badge {
  position: absolute;
  top: 30px;
  right: 30px;
  font-size: 28px;
  padding: 15px 30px;
  animation: floating 3s ease-in-out infinite;
}

@keyframes floating {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.hero h1 {
  font-size: 56px;
  margin-bottom: 20px;
  text-shadow: 0 0 30px var(--primary-glow);
  animation: fadeInUp 1s ease;
}

.hero p {
  font-size: 20px;
  color: var(--text-secondary);
  margin-bottom: 30px;
  animation: fadeInUp 1.2s ease;
}

.hero-disclaimer {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 20px;
  opacity: 0.8;
}

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

.cta-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 1.4s ease;
}

.btn {
  padding: 16px 40px;
  border-radius: 16px;
  font-weight: 700;
  font-size: 16px;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  box-shadow: 0 0 25px var(--primary-glow);
  animation: shimmer 3s infinite;
}

.btn-primary:hover {
  transform: scale(1.05);
  box-shadow: 0 0 40px var(--primary-glow);
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

.btn-secondary {
  background: var(--card-bg);
  border: 2px solid var(--card-border);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: var(--card-border);
  transform: scale(1.05);
}

section {
  padding: 100px 20px;
  position: relative;
}

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

.section-header h2 {
  font-size: 42px;
  margin-bottom: 15px;
  display: inline-flex;
  align-items: center;
  gap: 15px;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 18px;
}

.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.game-card {
  background: var(--card-bg);
  border: 2px solid var(--card-border);
  border-radius: 20px;
  padding: 20px;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.game-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--primary-glow), transparent);
  opacity: 0;
  transition: var(--transition);
}

.game-card:hover {
  transform: scale(1.05);
  border-color: var(--primary);
  box-shadow: 0 10px 40px var(--primary-glow);
}

.game-card:hover::before { opacity: 1; }

.game-image-container {
  position: relative;
  width: 100%;
  height: 200px;
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 15px;
  background: linear-gradient(135deg, #1e293b, #334155);
}

.game-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

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

.game-image-fallback {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;

  font-weight: 700;
  text-align: center;
  padding: 20px;
}

.game-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.game-category {
  background: var(--primary);
  color: #fff;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

.game-title {
  font-size: 18px;
  margin-bottom: 15px;
  color: var(--text-primary);
  position: relative;
  z-index: 1;
}

.play-demo-btn {
  width: 100%;
  padding: 12px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  border: none;
  border-radius: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  z-index: 1;
  box-shadow: 0 4px 15px var(--primary-glow);
}

.play-demo-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px var(--primary-glow);
}

.game-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.95);
  z-index: 1000;
  backdrop-filter: blur(10px);
}

.game-modal.active { display: flex; align-items: center; justify-content: center; }

.modal-content {
  background: var(--bg-via);
  border: 2px solid var(--card-border);
  border-radius: 20px;
  width: 95%;
  max-width: 1200px;
  height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 30px;
  border-bottom: 1px solid var(--card-border);
  gap: 15px;
}

.modal-header h2 { font-size: 24px; flex: 1; }

.close-btn {
  background: none;
  border: none;
  color: #fff;
  font-size: 36px;
  cursor: pointer;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.close-btn:hover { color: var(--primary); transform: scale(1.2); }

#game-iframe {
  flex: 1;
  border: none;
  width: 100%;
  background: #000;
}

.demo-unavailable {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--text-secondary);
}

.age-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.98);
  z-index: 2000;
  backdrop-filter: blur(5px);
}

.age-modal.active { display: flex; align-items: center; justify-content: center; }

.age-modal-content {
  background: linear-gradient(135deg, var(--bg-via), var(--bg-to));
  border: 3px solid var(--card-border);
  border-radius: 24px;
  padding: 50px;
  text-align: center;
  max-width: 500px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
}

.age-modal-icon {
  font-size: 80px;
  margin-bottom: 20px;
  animation: pulse 2s infinite;
}

.age-modal h2 { font-size: 32px; margin-bottom: 15px; }

.age-modal p { font-size: 16px; color: var(--text-secondary); margin-bottom: 30px; }

.age-modal-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.feature-card {
  background: var(--card-bg);
  border: 2px solid var(--card-border);
  border-radius: 20px;
  padding: 40px 30px;
  text-align: center;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-10px);
  border-color: var(--primary);
  box-shadow: 0 15px 40px var(--primary-glow);
}

.feature-icon {
  font-size: 48px;
  margin-bottom: 20px;
  animation: floating 3s ease-in-out infinite;
}

.feature-card h3 { font-size: 22px; margin-bottom: 15px; }

.feature-card p { color: var(--text-secondary); }

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  margin-top: 40px;
}

.step {
  text-align: center;
  position: relative;
}

.step-number {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 700;
  margin: 0 auto 20px;
  box-shadow: 0 0 25px var(--primary-glow);
}

.step h3 { font-size: 20px; margin-bottom: 10px; }

.step p { color: var(--text-secondary); }

.responsible-section {
  background: var(--card-bg);
  border: 2px solid var(--card-border);
  border-radius: 24px;
  padding: 60px 40px;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.responsible-icon {
  font-size: 72px;
  margin-bottom: 25px;
  animation: pulse 3s infinite;
}

.responsible-section h2 { font-size: 36px; margin-bottom: 20px; }

.responsible-section p { font-size: 18px; color: var(--text-secondary); margin-bottom: 15px; line-height: 1.8; }

.responsible-links {
  margin-top: 30px;
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.responsible-links a {
  color: var(--accent);
  font-weight: 600;
  text-decoration: underline;
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--card-bg);
  border: 2px solid var(--card-border);
  border-radius: 16px;
  padding: 25px;
  margin-bottom: 20px;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--primary);
  box-shadow: 0 5px 20px var(--primary-glow);
}

.faq-item h3 { font-size: 20px; margin-bottom: 10px; color: var(--accent); }

.faq-item p { color: var(--text-secondary); line-height: 1.8; }

footer {
  background: rgba(4, 47, 46, 0.9);
  border-top: 2px solid var(--card-border);
  padding: 60px 20px 30px;
  margin-top: 100px;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h3 { font-size: 20px; margin-bottom: 20px; }

.footer-section p, .footer-section a { color: var(--text-secondary); font-size: 14px; line-height: 1.8; display: block; margin-bottom: 10px; }

.footer-logo { font-size: 28px; font-weight: 700; color: var(--primary); text-shadow: 0 0 20px var(--primary-glow); margin-bottom: 15px; }

.footer-disclaimer {
  background: rgba(220, 38, 38, 0.1);
  border: 2px solid rgba(220, 38, 38, 0.3);
  border-radius: 16px;
  padding: 30px;
  margin-bottom: 30px;
  text-align: center;
}

.footer-disclaimer .age-badge-large { margin-bottom: 20px; display: inline-block; }

.footer-disclaimer p { font-size: 14px; color: var(--text-secondary); line-height: 1.8; }

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid var(--card-border);
  color: var(--text-secondary);
  font-size: 14px;
}

.filter-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.filter-btn {
  padding: 12px 24px;
  background: var(--card-bg);
  border: 2px solid var(--card-border);
  border-radius: 12px;
  color: var(--text-primary);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover, .filter-btn.active {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-color: var(--primary);
  box-shadow: 0 4px 15px var(--primary-glow);
}

.reminder-banner {
  background: rgba(220, 38, 38, 0.15);
  border: 2px solid rgba(220, 38, 38, 0.4);
  border-radius: 16px;
  padding: 20px;
  text-align: center;
  margin-bottom: 40px;
}

.reminder-banner p { color: var(--text-primary); font-weight: 600; }

.content-page {
  max-width: 900px;
  margin: 60px auto;
  padding: 40px;
  background: var(--card-bg);
  border: 2px solid var(--card-border);
  border-radius: 20px;
}

.content-page h1 { font-size: 36px; margin-bottom: 30px; }

.content-page h2 { font-size: 24px; margin-top: 30px; margin-bottom: 15px; }

.content-page p { color: var(--text-secondary); margin-bottom: 15px; line-height: 1.8; }

.content-page ul { margin-left: 30px; margin-bottom: 15px; color: var(--text-secondary); }

.content-page ul li { margin-bottom: 10px; }

@media (max-width: 768px) {
  .hero h1 { font-size: 36px; }
  .hero p { font-size: 16px; }
  .section-header h2 { font-size: 32px; }
  .games-grid { grid-template-columns: 1fr; }
  .cta-buttons { flex-direction: column; }
  .hero-badge { position: static; margin-bottom: 20px; }
  .modal-content { height: 95vh; }
  .age-modal-content { padding: 30px 20px; }
}

@media (max-width: 640px) {
  section { padding: 60px 15px; }
  .footer-content { grid-template-columns: 1fr; }
}