/* Premium Sidebar */
.premium-sidebar {
  position: fixed;
  top: 0;
  left: -360px;
  width: 360px;
  height: 100vh;
  background: rgba(11, 13, 23, 0.95);
  backdrop-filter: blur(40px);
  border-right: 2px solid rgba(42, 116, 248, 0.2);
  z-index: 1100;
  transition: left 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 60px rgba(42, 116, 248, 0.15);
}

.premium-sidebar.open {
  left: 0;
}

.sidebar-content {
  padding: 2.5rem;
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
}

.sidebar-content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(42, 116, 248, 0.05) 0%, rgba(200, 77, 208, 0.05) 100%);
  border-radius: 0;
  z-index: -1;
}

.sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 3.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 2px solid rgba(42, 116, 248, 0.2);
}

.sidebar-header h3 {
  font-family: 'Orbitron', monospace;
  font-size: 1.75rem;
  font-weight: 800;
  background: linear-gradient(135deg, #2A74F8, #C84DD0, #E045FF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 20px rgba(42, 116, 248, 0.3);
}

.close-sidebar {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(42, 116, 248, 0.2);
  color: #94a3b8;
  font-size: 1.75rem;
  cursor: pointer;
  padding: 0.75rem;
  border-radius: 12px;
  transition: all 0.4s ease;
  backdrop-filter: blur(20px);
}

.close-sidebar:hover {
  color: #2A74F8;
  background: rgba(42, 116, 248, 0.15);
  border-color: #2A74F8;
  transform: scale(1.05);
}

.sidebar-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.5rem 2rem;
  color: #94a3b8;
  text-decoration: none;
  border-radius: 20px;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
  font-weight: 600;
  font-size: 1.1rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
}

.sidebar-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(42, 116, 248, 0.2), transparent);
  transition: left 0.6s;
}

.sidebar-link:hover::before {
  left: 100%;
}

.sidebar-link::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0;
  background: linear-gradient(135deg, #2A74F8, #C84DD0);
  transition: width 0.4s ease;
  border-radius: 0 20px 20px 0;
}

.sidebar-link:hover {
  color: #ffffff;
  background: rgba(42, 116, 248, 0.15);
  border-color: rgba(42, 116, 248, 0.4);
  transform: translateX(8px);
  box-shadow: 0 8px 25px rgba(42, 116, 248, 0.2);
}

.sidebar-link:hover::after {
  width: 4px;
}

.sidebar-link.active {
  color: #ffffff;
  background: linear-gradient(135deg, rgba(42, 116, 248, 0.2), rgba(200, 77, 208, 0.1));
  border-color: rgba(42, 116, 248, 0.5);
  box-shadow: 0 8px 25px rgba(42, 116, 248, 0.3);
}

.sidebar-link.active::after {
  width: 4px;
}

.sidebar-link i {
  font-size: 1.5rem;
  width: 28px;
  text-align: center;
  background: linear-gradient(135deg, #2A74F8, #C84DD0);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Overlay for mobile */
.sidebar-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  z-index: 1050;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s ease;
  backdrop-filter: blur(5px);
}

.sidebar-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .premium-sidebar {
    width: 320px;
    left: -320px;
  }
  
  .sidebar-content {
    padding: 2rem;
  }
  
  .sidebar-header {
    margin-bottom: 2.5rem;
  }
  
  .sidebar-link {
    padding: 1.25rem 1.75rem;
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .premium-sidebar {
    width: 100%;
    left: -100%;
  }
  
  .sidebar-content {
    padding: 1.5rem;
  }
}

/* Animation for sidebar links */
.premium-sidebar.open .sidebar-link {
  animation: slideInLeft 0.4s ease forwards;
  opacity: 0;
}

.premium-sidebar.open .sidebar-link:nth-child(1) { animation-delay: 0.1s; }
.premium-sidebar.open .sidebar-link:nth-child(2) { animation-delay: 0.2s; }
.premium-sidebar.open .sidebar-link:nth-child(3) { animation-delay: 0.3s; }
.premium-sidebar.open .sidebar-link:nth-child(4) { animation-delay: 0.4s; }
.premium-sidebar.open .sidebar-link:nth-child(5) { animation-delay: 0.5s; }

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Additional premium effects */
.sidebar-link:hover i {
  transform: scale(1.1);
}

.sidebar-header h3 {
  animation: glow 3s ease-in-out infinite alternate;
}

@keyframes glow {
  from {
    text-shadow: 0 0 20px rgba(42, 116, 248, 0.3);
  }
  to {
    text-shadow: 0 0 30px rgba(42, 116, 248, 0.6), 0 0 40px rgba(200, 77, 208, 0.3);
  }
}