/* Custom styles for enhanced UI */
:root {
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-success: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
  --gradient-warning: linear-gradient(135deg, #ffa726 0%, #fb8c00 100%);
  --gradient-danger: linear-gradient(135deg, #ff5722 0%, #e53935 100%);
  --shadow-soft: 0 10px 25px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 15px 35px rgba(0, 0, 0, 0.15);
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Responsive typography improvements */
@media (max-width: 640px) {
  .health-card {
    padding: 12px !important;
  }
  
  .health-card canvas {
    height: 40px !important;
  }
  
  .chart-container {
    padding: 8px !important;
  }
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

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

::-webkit-scrollbar-track {
  background: #374151;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: #6b7280;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #9ca3af;
}

/* Enhanced card hover effects */
.card-hover {
  transition: var(--transition-smooth);
}

.card-hover:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

/* Pulse animation for connection status */
@keyframes pulse-green {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.8;
  }
}

@keyframes pulse-red {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.6;
  }
}

.status-connected {
  animation: pulse-green 2s infinite;
}

.status-disconnected {
  animation: pulse-red 2s infinite;
}

/* Enhanced button styles */
.btn-primary {
  background: var(--gradient-primary);
  transition: var(--transition-smooth);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-soft);
}

.btn-success {
  background: var(--gradient-success);
  transition: var(--transition-smooth);
}

.btn-success:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-soft);
}

/* Chart container improvements */
.chart-container {
  position: relative;
  background: rgba(55, 65, 81, 0.5);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(107, 114, 128, 0.2);
}

/* Health metric cards enhancement */
.health-card {
  position: relative;
  overflow: hidden;
}

.health-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.health-card:hover::before {
  opacity: 1;
}

/* Input field enhancements */
.enhanced-input {
  transition: var(--transition-smooth);
  position: relative;
}

.enhanced-input:focus {
  transform: scale(1.02);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Loading states */
.loading {
  position: relative;
  overflow: hidden;
}

.loading::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}

/* Custom chart styles */
.chart-wrapper {
  background: linear-gradient(145deg, #374151, #4b5563);
  border-radius: 12px;
  padding: 1rem;
  position: relative;
}

/* Device info grid improvements */
.device-info-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* Log textarea improvements */
#log {
  line-height: 1.5;
  letter-spacing: 0.025em;
  background: white !important;
  color: #1f2937 !important;
}

#mobileLog {
  line-height: 1.5;
  letter-spacing: 0.025em;
  background: white !important;
  color: #1f2937 !important;
}

/* Responsive improvements */
@media (max-width: 768px) {
  .main-grid {
    grid-template-columns: 1fr;
  }
  
  .health-metrics-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }
}

/* Focus indicators */
button:focus-visible,
input:focus-visible {
  outline: 2px solid #3b82f6;
  outline-offset: 2px;
}

/* Status indicators */
.status-indicator {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 8px;
}

.status-connected .status-indicator {
  background-color: #10b981;
  animation: pulse-green 2s infinite;
}

.status-disconnected .status-indicator {
  background-color: #ef4444;
  animation: pulse-red 2s infinite;
}

.status-connecting .status-indicator {
  background-color: #f59e0b;
  animation: pulse-yellow 2s infinite;
}

@keyframes pulse-yellow {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

/* Custom gradient backgrounds */
.bg-gradient-gray {
  background: linear-gradient(145deg, #374151, #4b5563);
}

.bg-gradient-dark {
  background: linear-gradient(145deg, #1f2937, #374151);
}

/* Enhanced typography */
.text-glow {
  text-shadow: 0 0 10px rgba(59, 130, 246, 0.3);
}

/* Notification styles */
.notification {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: 1rem 1.5rem;
  border-radius: 8px;
  color: white;
  font-weight: 500;
  z-index: 1000;
  transform: translateX(100%);
  transition: transform 0.3s ease;
}

.notification.show {
  transform: translateX(0);
}

.notification.success {
  background: linear-gradient(135deg, #10b981, #059669);
}

.notification.error {
  background: linear-gradient(135deg, #ef4444, #dc2626);
}

.notification.warning {
  background: linear-gradient(135deg, #f59e0b, #d97706);
}