/* 
    Premium Frontend UI/UX Design System
    Focus: Glassmorphism, 3D, and Advanced Animations
*/

:root {
  --premium-gold: #ffd700;
  --premium-gold-glow: rgba(255, 215, 0, 0.4);
  --premium-white: #f8f9fa;
  --premium-glass: rgba(255, 255, 255, 0.1);
  --premium-glass-border: rgba(255, 255, 255, 0.15);
  --premium-shadow-lg: 0 40px 100px rgba(0, 0, 0, 0.5);
  --premium-card-blur: blur(20px);
}

/* Glassmorphism Containers */
.premium-glass-card {
  background: var(--premium-glass);
  backdrop-filter: var(--premium-card-blur);
  border: 1px solid var(--premium-glass-border);
  border-radius: 20px;
  padding: 30px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.premium-glass-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
  background: rgba(255, 255, 255, 0.12);
}

/* 3D Transform Utilities */
.premium-3d-card {
  transform-style: preserve-3d;
  perspective: 1000px;
}

.premium-3d-content {
  transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.premium-3d-card:hover .premium-3d-content {
  transform: rotateY(10deg) rotateX(10deg);
}

/* Animations */
@keyframes premium-slide-up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-premium-up {
  animation: premium-slide-up 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

@keyframes premium-glow-pulse {
  0%,
  100% {
    box-shadow: 0 0 10px var(--premium-gold-glow);
  }
  50% {
    box-shadow: 0 0 25px var(--premium-gold-glow);
  }
}

.premium-glow-btn {
  animation: premium-glow-pulse 3s infinite;
}

/* UI Enhancements for White Boxes */
.white-box.premium-enhanced {
  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(0, 0, 0, 0.03);
  overflow: hidden;
  transition: all 0.3s ease;
}

.white-box.premium-enhanced:hover {
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
}

/* Sidebar & Navigation Glass */
#sidebar.premium-glass-sidebar {
  background: rgba(25, 25, 35, 0.95) !important;
  backdrop-filter: blur(15px);
  border-right: 1px solid rgba(255, 255, 255, 0.05);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.05);
}
::-webkit-scrollbar-thumb {
  background: var(--premium-gold);
  border-radius: 10px;
}