:root {
  --primary: #38bdf8;
  --primary-glow: rgba(56, 189, 248, 0.4);
  --secondary: #0ea5e9;
  --accent: #22d3ee;
  --accent-glow: rgba(34, 211, 238, 0.3);
  --bg-start: #0c1929;
  --bg-mid: #0f2847;
  --bg-end: #020617;
  --card-bg: rgba(15, 40, 71, 0.6);
  --card-border: rgba(56, 189, 248, 0.2);
  --text-primary: #ffffff;
  --text-secondary: #94a3b8;
  --transition: 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

body {
  font-family: 'Nunito', system-ui, sans-serif;
  font-weight: 400;
  background: linear-gradient(135deg, var(--bg-start) 0%, var(--bg-mid) 50%, var(--bg-end) 100%);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Poppins', system-ui, sans-serif;
  font-weight: 600;
  line-height: 1.2;
}

code, pre {
  font-family: 'Roboto Mono', monospace;
}

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

/* Navigation */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(12, 25, 41, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--card-border);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 24px;
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
  transition: transform var(--transition);
}

.logo:hover {
  transform: scale(1.05);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: 0 0 20px var(--primary-glow);
}

.nav-links {
  display: flex;
  gap: 30px;
  align-items: center;
  list-style: none;
}

.nav-links a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition);
  font-weight: 500;
}

.nav-links a:hover {
  color: var(--primary);
}

.age-badge {
  background: linear-gradient(135deg, #dc2626, #991b1b);
  padding: 8px 16px;
  border-radius: 20px;
  font-weight: 700;
  font-size: 14px;
  box-shadow: 0 0 15px rgba(220, 38, 38, 0.5);
  display: flex;
  align-items: center;
  gap: 5px;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 28px;
  cursor: pointer;
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding: 100px 20px 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 50%, var(--primary-glow) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, var(--accent-glow) 0%, transparent 50%),
    url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="30" fill="none" stroke="rgba(56,189,248,0.1)" stroke-width="1"/></svg>');
  animation: float 20s ease-in-out infinite;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero h1 {
  font-size: 56px;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: float 4s ease-in-out infinite;
}

.hero p {
  font-size: 22px;
  color: var(--text-secondary);
  margin-bottom: 40px;
}

.cta-btn {
  display: inline-block;
  padding: 18px 45px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  font-size: 18px;
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  animation: pulse 2s ease-in-out infinite;
  box-shadow: 0 0 30px var(--primary-glow);
}

.cta-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left 0.5s;
}

.cta-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 0 50px var(--primary-glow);
}

.cta-btn:hover::before {
  left: 100%;
}

/* Section Styling */
section {
  padding: 100px 0;
  position: relative;
}

.section-title {
  text-align: center;
  font-size: 42px;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  text-align: center;
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 60px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* App Download Section */
.download-section {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 60px;
  text-align: center;
  backdrop-filter: blur(10px);
  box-shadow: 0 0 40px var(--primary-glow);
}

.download-form {
  max-width: 500px;
  margin: 40px auto 0;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.download-form input {
  flex: 1;
  min-width: 250px;
  padding: 16px 24px;
  border-radius: 50px;
  border: 2px solid var(--card-border);
  background: rgba(12, 25, 41, 0.8);
  color: var(--text-primary);
  font-size: 16px;
  outline: none;
  transition: border-color var(--transition);
}

.download-form input:focus {
  border-color: var(--primary);
}

.download-form button {
  padding: 16px 35px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  border: none;
  border-radius: 50px;
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  transition: transform var(--transition);
}

.download-form button:hover {
  transform: scale(1.05);
}

.success-message {
  display: none;
  padding: 20px;
  background: rgba(34, 197, 94, 0.2);
  border: 2px solid #22c55e;
  border-radius: 16px;
  color: #22c55e;
  font-weight: 600;
  margin-top: 20px;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 60px;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 40px 30px;
  text-align: center;
  backdrop-filter: blur(10px);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transition: transform var(--transition);
}

.feature-card:hover {
  transform: translateY(-10px) scale(1.05);
  box-shadow: 0 20px 60px var(--primary-glow);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  box-shadow: 0 0 30px var(--primary-glow);
  animation: float 3s ease-in-out infinite;
}

.feature-card h3 {
  font-size: 24px;
  margin-bottom: 15px;
  color: var(--primary);
}

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

/* About Section */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-text h2 {
  font-size: 42px;
  margin-bottom: 20px;
  color: var(--primary);
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-size: 18px;
  line-height: 1.8;
}

.trust-badges {
  display: flex;
  gap: 20px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.badge {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 12px 24px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* FAQ Section */
.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  margin-bottom: 20px;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 24px 30px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 18px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color var(--transition);
}

.faq-question:hover {
  color: var(--primary);
}

.faq-icon {
  font-size: 24px;
  transition: transform var(--transition);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-content {
  padding: 0 30px 24px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

/* Footer */
footer {
  background: rgba(12, 25, 41, 0.95);
  border-top: 1px solid var(--card-border);
  padding: 60px 0 30px;
  margin-top: 100px;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 40px;
}

.footer-brand h3 {
  font-size: 28px;
  color: var(--primary);
  margin-bottom: 15px;
}

.footer-brand p {
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.footer-age-warning {
  background: rgba(220, 38, 38, 0.2);
  border: 2px solid #dc2626;
  border-radius: 16px;
  padding: 20px;
  margin: 20px 0;
  text-align: center;
}

.footer-age-badge {
  font-size: 48px;
  font-weight: 700;
  color: #dc2626;
  margin-bottom: 10px;
}

.footer-links h4 {
  color: var(--primary);
  margin-bottom: 20px;
  font-size: 18px;
}

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

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--primary);
}

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

/* Age Verification Modal */
.age-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.95);
  z-index: 10000;
  align-items: center;
  justify-content: center;
}

.age-modal.active {
  display: flex;
}

.age-modal-content {
  background: linear-gradient(135deg, var(--bg-start), var(--bg-mid));
  border: 2px solid var(--card-border);
  border-radius: 20px;
  padding: 50px;
  text-align: center;
  max-width: 500px;
  box-shadow: 0 0 60px var(--primary-glow);
}

.age-modal-content h2 {
  font-size: 36px;
  margin-bottom: 20px;
  color: var(--primary);
}

.age-modal-icon {
  font-size: 64px;
  margin-bottom: 20px;
}

.age-modal-buttons {
  display: flex;
  gap: 20px;
  margin-top: 30px;
  justify-content: center;
}

.age-modal-buttons button {
  padding: 16px 40px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  transition: transform var(--transition);
  border: none;
}

.btn-confirm {
  background: linear-gradient(135deg, #22c55e, #16a34a);
  color: white;
}

.btn-decline {
  background: linear-gradient(135deg, #dc2626, #991b1b);
  color: white;
}

.age-modal-buttons button:hover {
  transform: scale(1.05);
}

/* Point System Page */
.points-table {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  overflow: hidden;
  margin: 40px 0;
  backdrop-filter: blur(10px);
}

.points-table table {
  width: 100%;
  border-collapse: collapse;
}

.points-table th {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  padding: 20px;
  text-align: left;
  font-size: 18px;
}

.points-table td {
  padding: 20px;
  border-bottom: 1px solid var(--card-border);
  color: var(--text-secondary);
}

.points-table tr:last-child td {
  border-bottom: none;
}

.points-table .points-value {
  color: var(--primary);
  font-weight: 600;
  font-size: 20px;
}

.tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin: 60px 0;
}

.tip-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 30px;
  backdrop-filter: blur(10px);
}

.tip-card h3 {
  color: var(--primary);
  margin-bottom: 15px;
  font-size: 22px;
}

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

/* Legal Pages */
.legal-page {
  padding: 120px 0 80px;
}

.legal-content {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 60px;
  backdrop-filter: blur(10px);
}

.legal-content h1 {
  font-size: 42px;
  color: var(--primary);
  margin-bottom: 30px;
}

.legal-content h2 {
  font-size: 28px;
  color: var(--primary);
  margin: 40px 0 20px;
}

.legal-content p {
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.8;
}

.legal-content ul {
  color: var(--text-secondary);
  margin-left: 30px;
  margin-bottom: 20px;
}

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

.back-link {
  display: inline-block;
  margin-bottom: 30px;
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  transition: transform var(--transition);
}

.back-link:hover {
  transform: translateX(-5px);
}

/* Animations */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 30px var(--primary-glow); }
  50% { box-shadow: 0 0 50px var(--primary-glow); }
}

/* Responsive Design */
@media (max-width: 1024px) {
  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
  
  .about-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: block;
  }
  
  .nav-links {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: rgba(12, 25, 41, 0.98);
    backdrop-filter: blur(10px);
    flex-direction: column;
    padding: 40px;
    transition: left 0.3s ease;
    align-items: flex-start;
  }
  
  .nav-links.active {
    left: 0;
  }
  
  .hero h1 {
    font-size: 36px;
  }
  
  .hero p {
    font-size: 18px;
  }
  
  .section-title {
    font-size: 32px;
  }
  
  .download-section {
    padding: 40px 30px;
  }
  
  .download-form {
    flex-direction: column;
  }
  
  .download-form input,
  .download-form button {
    width: 100%;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .legal-content {
    padding: 30px 20px;
  }
  
  .points-table {
    overflow-x: auto;
  }
}

@media (max-width: 640px) {
  .hero h1 {
    font-size: 28px;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .tips-grid {
    grid-template-columns: 1fr;
  }
  
  .age-modal-content {
    padding: 30px 20px;
    margin: 20px;
  }
}