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

:root {
  --primary-color: #00ff88;
  --secondary-color: #00d4ff;
  --accent-color: #ff6b6b;
  --warning-color: #ffd93d;
  --success-color: #28a745;
  --dark-bg: #0a0a0f;
  --dark-card: #1a1a2e;
  --dark-surface: #16213e;
  --text-primary: #ffffff;
  --text-secondary: #b8b8b8;
  --text-muted: #888888;
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  --gradient-accent: linear-gradient(135deg, var(--accent-color), var(--warning-color));
}

body {
  font-family: "Inter", "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--dark-bg);
  background-image: radial-gradient(circle at 20% 80%, rgba(0, 255, 136, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(0, 212, 255, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(255, 107, 107, 0.1) 0%, transparent 50%);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* WhatsApp Float */
.whatsapp-float {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 999;
  animation: bounce 2s infinite;
}

.whatsapp-link img {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease;
}

.whatsapp-link img:hover {
  transform: scale(1.1);
}

@keyframes bounce {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

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

/* Header */
.header {
  background: rgba(10, 10, 15, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
}

.navbar {
  padding: 1rem 0;
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo h2 {
  color: var(--primary-color);
  font-size: 1.8rem;
  font-weight: 700;
  text-shadow: 0 0 20px rgba(0, 255, 136, 0.4);
}

.back-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  padding: 10px 20px;
  border-radius: 30px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.back-link:hover {
  color: var(--primary-color);
  border-color: var(--primary-color);
  box-shadow: 0 0 20px rgba(0, 255, 136, 0.2);
}

/* Main Content */
.main-content {
  padding-top: 100px;
  padding-bottom: 50px;
}

.product-layout {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 3rem;
  align-items: start;
}

/* Product Content */
.product-content {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border-radius: 20px;
  border: 1px solid var(--glass-border);
  padding: 3rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.product-header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.product-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.product-stats {
  display: flex;
  align-items: center;
  gap: 2rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.rating {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.rating-score {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--warning-color);
}

.stars {
  display: flex;
  gap: 0.2rem;
}

.stars i {
  color: var(--warning-color);
  font-size: 1rem;
}

.rating-count {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.student-count {
  color: var(--text-secondary);
  font-weight: 600;
}

.language {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.lang-label {
  color: var(--text-muted);
}

.lang-value {
  background: var(--primary-color);
  color: var(--dark-bg);
  padding: 4px 12px;
  border-radius: 15px;
  font-size: 0.8rem;
  font-weight: 600;
}

/* Mentors Section */
.mentors-section {
  margin: 3rem 0;
  padding: 2rem 0;
  border-top: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
}

.mentors-section h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.mentors-subtitle {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

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

.mentor-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: rgba(255, 255, 255, 0.03);
  padding: 1.5rem;
  border-radius: 15px;
  border: 1px solid var(--glass-border);
  transition: all 0.3s ease;
}

.mentor-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary-color);
  box-shadow: 0 10px 30px rgba(0, 255, 136, 0.1);
}

.mentor-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--primary-color);
  box-shadow: 0 0 20px rgba(0, 255, 136, 0.3);
}

.mentor-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mentor-info h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.3rem;
}

.mentor-info p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Package Content */
.package-content {
  margin-top: 3rem;
}

.package-content h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 2rem;
  color: var(--text-primary);
}

.module-count {
  color: var(--primary-color);
  font-size: 1rem;
  font-weight: 500;
}

.content-modules {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.module-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.module-item:hover {
  border-color: var(--primary-color);
}

.module-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.module-header:hover {
  background: rgba(0, 255, 136, 0.05);
}

.module-info h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.3rem;
}

.module-info h3 i {
  color: var(--primary-color);
  margin-right: 0.5rem;
}

.module-details {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.toggle-icon {
  color: var(--primary-color);
  transition: transform 0.3s ease;
}

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

.module-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.module-item.active .module-content {
  max-height: 500px;
}

.module-content ul {
  list-style: none;
  padding: 0 1.5rem 1.5rem;
}

.module-content li {
  padding: 0.5rem 0;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.module-content li i {
  color: var(--success-color);
  font-size: 0.9rem;
}

/* Product Sidebar */
.product-sidebar {
  position: sticky;
  top: 120px;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.pricing-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

/* Video Preview */
.video-preview {
  position: relative;
}

.video-container {
  width: 100%;
  height: 0;
  padding-bottom: 56.25%;
  position: relative;
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.preview-badge {
  position: absolute;
  top: 15px;
  right: 15px;
  background: var(--accent-color);
  color: white;
  padding: 5px 12px;
  border-radius: 15px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
}

/* Special Offer */
.special-offer {
  padding: 2rem;
  text-align: center;
  background: linear-gradient(135deg, rgba(0, 255, 136, 0.1), rgba(0, 212, 255, 0.1));
}

.offer-badge {
  background: var(--success-color);
  color: white;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 1rem;
  display: inline-block;
}

.offer-price {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.currency {
  font-size: 1.5rem;
  color: var(--primary-color);
}

.price {
  font-size: 3rem;
  font-weight: 800;
  color: var(--primary-color);
}

.discount {
  background: var(--accent-color);
  color: white;
  padding: 4px 8px;
  border-radius: 10px;
  font-size: 0.8rem;
  font-weight: 600;
}

.original-price {
  color: var(--text-muted);
  text-decoration: line-through;
  font-size: 0.9rem;
}

.package-includes {
  padding: 1rem 2rem;
  text-align: center;
}

.includes-note {
  color: var(--success-color);
  font-weight: 600;
}

/* Action Buttons */
.action-buttons {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.btn-primary-large,
.btn-secondary-large {
  width: 100%;
  padding: 16px 24px;
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-decoration: none;
}

.btn-primary-large {
  background: var(--gradient-primary);
  color: var(--dark-bg);
  box-shadow: 0 8px 32px rgba(0, 255, 136, 0.3);
}

.btn-primary-large:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(0, 255, 136, 0.4);
}

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

.btn-secondary-large:hover {
  background: rgba(0, 255, 136, 0.1);
  transform: translateY(-2px);
}

.divider {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  position: relative;
}

.divider::before,
.divider::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 40%;
  height: 1px;
  background: var(--glass-border);
}

.divider::before {
  left: 0;
}

.divider::after {
  right: 0;
}

/* Package Benefits */
.package-benefits {
  padding: 2rem;
  border-top: 1px solid var(--glass-border);
}

.package-benefits h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.package-benefits ul {
  list-style: none;
}

.package-benefits li {
  padding: 0.4rem 0;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-size: 0.9rem;
}

.package-benefits li i {
  color: var(--success-color);
  font-size: 0.8rem;
}

/* Guarantee */
.guarantee {
  padding: 1.5rem 2rem;
  text-align: center;
  border-top: 1px solid var(--glass-border);
  background: rgba(40, 167, 69, 0.1);
}

.guarantee-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: var(--success-color);
  font-weight: 600;
  font-size: 0.9rem;
}

/* Contact Card */
.contact-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 2rem;
  text-align: center;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.contact-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.contact-card p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.contact-options {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-btn {
  padding: 12px 20px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  background: transparent;
}

.contact-btn:hover {
  background: var(--primary-color);
  color: var(--dark-bg);
  transform: translateY(-2px);
}

.contact-btn.whatsapp {
  border-color: #25d366;
  color: #25d366;
}

.contact-btn.whatsapp:hover {
  background: #25d366;
  color: white;
}

/* Footer */
.footer {
  background: var(--dark-surface);
  color: var(--text-primary);
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--glass-border);
  margin-top: 4rem;
}

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

.footer-section h3,
.footer-section h4 {
  margin-bottom: 1.5rem;
  color: var(--primary-color);
  font-weight: 600;
}

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

.footer-section ul li {
  padding: 0.5rem 0;
}

.footer-section ul li a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-section ul li a:hover {
  color: var(--primary-color);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--glass-border);
  color: var(--text-muted);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .product-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .product-sidebar {
    position: static;
    order: -1;
  }
}

@media (max-width: 768px) {
  .product-content {
    padding: 2rem;
  }

  .product-header h1 {
    font-size: 2rem;
  }

  .product-stats {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .mentors-grid {
    grid-template-columns: 1fr;
  }

  .mentor-card {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

  .product-content {
    padding: 1.5rem;
  }

  .product-header h1 {
    font-size: 1.8rem;
  }

  .pricing-card {
    margin: 0 -15px;
    border-radius: 0;
  }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--dark-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--gradient-primary);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gradient-accent);
}

/* Selection */
::selection {
  background: rgba(0, 255, 136, 0.3);
  color: var(--text-primary);
}