/* Enhanced Educational Cards Section */
.educational-cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}

/* Mobile-first: single column */
@media (max-width: 767px) {
  .educational-cards-grid {
    grid-template-columns: 1fr;
  }
}

/* Tablet and up: 2x2 grid */
@media (min-width: 768px) {
  .educational-cards-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

/* Educational card base styles - shared by all cards */
.educational-card {
  background: linear-gradient(135deg, var(--card-gradient-start), var(--card-gradient-end));
  border-radius: 12px;
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.3s ease;
  min-height: 140px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.educational-card:hover {
  transform: scale(1.02);
}

.educational-card h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  position: relative;
  z-index: 2;
}

.educational-card p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.85rem;
  position: relative;
  z-index: 2;
  line-height: 1.4;
}

.educational-card .card-icon {
  position: absolute;
  top: -20px;
  right: -20px;
  font-size: 4rem;
  opacity: 0.2;
}

/* Card color variations */
.educational-card-1 {
  --card-gradient-start: #4CAF50;
  --card-gradient-end: #388E3C;
}

.educational-card-2 {
  --card-gradient-start: #FF9800;
  --card-gradient-end: #F57C00;
}

.educational-card-3 {
  --card-gradient-start: #2196F3;
  --card-gradient-end: #1976D2;
}

.educational-card-4 {
  --card-gradient-start: #9C27B0;
  --card-gradient-end: #7B1FA2;
}

/* Light theme adjustments */
.theme-light .educational-card h4 {
  color: #fff;
}

.theme-light .educational-card p {
  color: rgba(255, 255, 255, 0.95);
}

/* Platform Features Section - Inspired by Kraken */
.platform-features-section {
  padding: 4rem 1rem;
  margin-top: 3rem;
  margin-bottom: 3rem;
  background: var(--section-bg);
  position: relative;
  border-radius: 32px;
  overflow: hidden;
}

:root {
  --section-bg: rgba(255, 255, 255, 0.02);
}

.theme-light {
  --section-bg: rgba(0, 0, 0, 0.02);
}

.platform-features-section .section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.platform-features-section .section-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, #FFD700, #FF6B35);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.platform-features-section .section-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

:root {
  --text-secondary: rgba(255, 255, 255, 0.7);
}

.theme-light {
  --text-secondary: rgba(0, 0, 0, 0.6);
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

/* Mobile: single column */
@media (max-width: 767px) {
  .features-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* Tablet: 2 columns */
@media (min-width: 768px) and (max-width: 1023px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
}

/* Desktop: 4 columns */
@media (min-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
  }
}

/* Feature Card */
.feature-card {
  background: var(--feature-card-bg);
  border: 1px solid var(--feature-card-border);
  border-radius: 16px;
  padding: 2rem 1.5rem;
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  height: 100%;
}

:root {
  --feature-card-bg: rgba(255, 255, 255, 0.05);
  --feature-card-border: rgba(255, 255, 255, 0.1);
}

.theme-light {
  --feature-card-bg: rgba(255, 255, 255, 0.9);
  --feature-card-border: rgba(0, 0, 0, 0.1);
}

.feature-card:hover {
  transform: translateY(-8px);
  background: var(--feature-card-bg-hover);
  border-color: var(--primary-color);
  box-shadow: 0 20px 40px rgba(255, 215, 0, 0.2);
}

:root {
  --feature-card-bg-hover: rgba(255, 255, 255, 0.08);
}

.theme-light {
  --feature-card-bg-hover: rgba(255, 255, 255, 1);
}

/* Feature Icon Container */
.feature-icon-container {
  width: 120px;
  height: 120px;
  margin: 0 auto 1.5rem;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
  transition: transform 0.3s ease;
}

.feature-card:hover .feature-icon {
  transform: scale(1.1) rotate(5deg);
}

/* Feature icon background glow */
.feature-icon-glow {
  position: absolute;
  width: 100px;
  height: 100px;
  background: radial-gradient(circle, var(--glow-color) 0%, transparent 70%);
  border-radius: 50%;
  opacity: 0.5;
  filter: blur(20px);
  z-index: -1;
}

.feature-card-play .feature-icon-glow {
  --glow-color: #FFD700;
}

.feature-card-network .feature-icon-glow {
  --glow-color: #2196F3;
}

.feature-card-rewards .feature-icon-glow {
  --glow-color: #9C27B0;
}

.feature-card-manage .feature-icon-glow {
  --glow-color: #4CAF50;
}

/* Feature Content */
.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

:root {
  --text-primary: #ffffff;
}

.theme-light {
  --text-primary: #000000;
}

.feature-description {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1.5rem;
  flex-grow: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Feature Link */
.feature-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: gap 0.3s ease;
  margin-top: auto;
}

.theme-light .feature-link {
  color: orange;
}

.feature-link:hover {
  gap: 0.75rem;
}

.feature-link svg {
  width: 16px;
  height: 16px;
  transition: transform 0.3s ease;
}

.feature-link:hover svg {
  transform: translateX(2px);
}

/* Animated background pattern */
.platform-features-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(255, 215, 0, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(33, 150, 243, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 40% 20%, rgba(156, 39, 176, 0.05) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.platform-features-section > * {
  position: relative;
  z-index: 1;
}

/* Mobile optimizations */
@media (max-width: 767px) {
  .platform-features-section {
    padding: 3rem 1rem;
    border-radius: 24px;
    margin-left: 0.5rem;
    margin-right: 0.5rem;
  }
  
  .platform-features-section .section-title {
    font-size: 1.5rem;
  }
  
  .feature-icon-container {
    width: 100px;
    height: 100px;
  }
  
  .feature-title {
    font-size: 1.1rem;
  }
  
  .feature-description {
    font-size: 0.9rem;
  }
}

/* Tablet optimizations */
@media (min-width: 768px) and (max-width: 1023px) {
  .feature-card {
    padding: 1.75rem 1.25rem;
  }
  
  .feature-icon-container {
    width: 110px;
    height: 110px;
  }
}

/* Large desktop optimization */
@media (min-width: 1400px) {
  .features-grid {
    max-width: 1400px;
    gap: 2.5rem;
  }
  
  .feature-card {
    padding: 2.5rem 2rem;
  }
}

/* Accessibility improvements */
.feature-card:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

.feature-link:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 4px;
  border-radius: 4px;
}

/* Smooth animations */
@media (prefers-reduced-motion: reduce) {
  .feature-card,
  .feature-icon,
  .feature-link,
  .feature-link svg {
    transition: none;
  }
}

/* Loading state for 3D assets */
.feature-icon-container.loading {
  background: linear-gradient(90deg, 
    rgba(255, 255, 255, 0.1) 25%, 
    rgba(255, 255, 255, 0.2) 50%, 
    rgba(255, 255, 255, 0.1) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 12px;
}

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

/* Feature badge (optional) */
.feature-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--primary-color);
  color: #000;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

/* About Shuren Section */
.about-shuren-section {
  padding: 4rem 1rem;
  margin-top: 3rem;
  margin-bottom: 3rem;
  background: var(--about-section-bg);
  border-radius: 32px;
  position: relative;
  overflow: hidden;
}

:root {
  --about-section-bg: rgba(255, 255, 255, 0.03);
}

.theme-light {
  --about-section-bg: rgba(0, 0, 0, 0.02);
}

.about-shuren-section .section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.about-shuren-section .section-title {
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg, #FFD700, #FF6B35);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.about-content {
  max-width: 1200px;
  margin: 0 auto;
}

/* About Description */
.about-description {
  color: var(--text-secondary);
}

.lead-text {
  font-size: 1.2rem;
  line-height: 1.6;
  color: var(--text-primary);
  margin-bottom: 2rem;
  font-weight: 500;
}

.about-features {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.about-feature {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.about-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.about-feature h4 {
  color: var(--text-primary);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.about-feature p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
}

.about-mission {
  padding: 1.5rem;
  background: var(--mission-bg);
  border-radius: 12px;
  border-left: 4px solid var(--primary-color);
}

:root {
  --mission-bg: rgba(255, 215, 0, 0.1);
}

.theme-light {
  --mission-bg: rgba(255, 215, 0, 0.15);
}

.about-mission p {
  color: var(--text-primary);
  font-size: 1rem;
  line-height: 1.6;
  margin: 0;
}

/* Contact Support Section */
.about-shuren-section .contact-support {
  margin-top: 3rem;
  padding-top: 3rem;
  border-top: 1px solid var(--border-color);
}

:root {
  --border-color: rgba(255, 255, 255, 0.1);
}

.theme-light {
  --border-color: rgba(0, 0, 0, 0.1);
}

/* Contact Support Card */
.support-card {
  background: var(--support-card-bg);
  border: 1px solid var(--support-card-border);
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
  max-width: 1000px;
  margin: 0 auto;
}

:root {
  --support-card-bg: rgba(255, 255, 255, 0.05);
  --support-card-border: rgba(255, 255, 255, 0.1);
}

.theme-light {
  --support-card-bg: rgba(255, 255, 255, 0.9);
  --support-card-border: rgba(0, 0, 0, 0.1);
}

.support-card h3 {
  color: var(--text-primary);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.support-card > p {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 2rem;
}

/* Contacts Grid */
.contacts-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 1.5rem;
  align-items: center;
  justify-items: center;
}

@media (min-width: 768px) {
  .contacts-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
}

.contact-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 350px;
}

/* Admin Contact */
.admin-contact {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--admin-contact-bg);
  border-radius: 12px;
  width: 100%;
}

:root {
  --admin-contact-bg: rgba(255, 255, 255, 0.03);
}

.theme-light {
  --admin-contact-bg: rgba(0, 0, 0, 0.03);
}

.admin-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--primary-color);
}

.admin-info {
  text-align: left;
  flex: 1;
}

.admin-info h4 {
  color: var(--text-primary);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.admin-role {
  color: var(--primary-color);
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
}

.theme-light .admin-role {
  color: rgb(255, 85, 0);
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
}

.admin-email {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.admin-speciality {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 0.25rem;
  font-style: italic;
}

/* Contact Button */
.contact-button {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.5rem;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  margin-top: 1rem;
  width: 100%;
  justify-content: center;
}

.contact-button-primary {
  background: linear-gradient(135deg, #2196F3, #1976D2);
  color: #fff;
}

.contact-button-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 215, 0, 0.3);
}

.contact-button-secondary {
  background: linear-gradient(135deg, #2196F3, #1976D2);
  color: #fff;
}

.contact-button-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(33, 150, 243, 0.3);
}

.contact-button svg {
  flex-shrink: 0;
}

/* Mobile optimizations for About section */
@media (max-width: 767px) {
  .about-shuren-section {
    padding: 3rem 1rem;
    border-radius: 24px;
    margin-left: 0.5rem;
    margin-right: 0.5rem;
  }
  
  .about-shuren-section .section-title {
    font-size: 1.5rem;
  }
  
  .lead-text {
    font-size: 1.1rem;
  }
  
  .about-features {
    gap: 1rem;
  }
  
  .about-icon {
    font-size: 1.5rem;
  }
  
  .about-feature h4 {
    font-size: 1rem;
  }
  
  .support-card {
    padding: 1.5rem;
  }
  
  .support-card h3 {
    font-size: 1.25rem;
  }
  
  .contacts-grid {
    gap: 1.5rem;
  }
  
  .admin-contact {
    flex-direction: column;
    text-align: center;
    padding: 1rem;
  }
  
  .admin-info {
    text-align: center;
  }
  
  .contact-button {
    padding: 0.65rem 1.25rem;
    font-size: 0.95rem;
  }
}