/* Lab Theme using TailwindCSS utilities and CSS variables */

/* CSS Variables for lab theme colors matching TailwindCSS naming */
:root {
  /* Lab color palette using TailwindCSS naming convention */
  --color-lab-blue: #0ea5e9;
  --color-lab-cyan: #06b6d4;
  --color-lab-purple: #8b5cf6;
  --color-lab-green: #10b981;
  --color-lab-orange: #f59e0b;
  --color-lab-red: #ef4444;
  
  /* Gray scale using TailwindCSS naming */
  --color-gray-50: #f8fafc;
  --color-gray-100: #f1f5f9;
  --color-gray-200: #e2e8f0;
  --color-gray-300: #cbd5e1;
  --color-gray-400: #94a3b8;
  --color-gray-500: #64748b;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-800: #1e293b;
  --color-gray-900: #0f172a;
  --color-gray-950: #020617;
  
  /* Lab-specific spacing */
  --spacing-lab-xs: 0.5rem;
  --spacing-lab-sm: 0.75rem;
  --spacing-lab-md: 1.5rem;
  --spacing-lab-lg: 2.5rem;
  --spacing-lab-xl: 4rem;
  
  /* Lab border radius */
  --radius-lab: 0.75rem;
  --radius-lab-lg: 1rem;
  --radius-lab-xl: 1.5rem;
  
  /* LED glow shadows */
  --shadow-led-sm: 0 0 10px;
  --shadow-led-md: 0 0 15px;
  --shadow-led-lg: 0 0 25px;
  --shadow-led-xl: 0 0 35px;
}

/* Keyframes for animations */
@keyframes ledGlow {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

@keyframes pulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.1); }
}

@keyframes progressGlow {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

@keyframes subtleFloat {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-5px); }
}

/* Global reveal.js overrides using CSS variables */
.reveal {
  font-family: system-ui, -apple-system, sans-serif;
  background: linear-gradient(135deg, var(--color-gray-900) 0%, var(--color-gray-800) 50%, var(--color-gray-900) 100%);
  color: var(--color-gray-100);
}

/* Custom lab utility classes */
.lab-hexagon {
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
}

.lab-led-border::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: linear-gradient(45deg, 
    var(--color-lab-blue), 
    var(--color-lab-cyan), 
    var(--color-lab-purple), 
    var(--color-lab-green), 
    var(--color-lab-blue));
  background-size: 400% 400%;
  border-radius: calc(var(--radius-lab-lg) + 2px);
  z-index: -1;
  animation: ledGlow 4s ease-in-out infinite;
  opacity: 0.3;
}

.lab-pulse {
  animation: pulse 2s ease-in-out infinite;
}

.lab-float {
  animation: subtleFloat 6s ease-in-out infinite;
}

.lab-progress-glow {
  background: linear-gradient(90deg, 
    var(--color-lab-blue), 
    var(--color-lab-cyan), 
    var(--color-lab-purple));
  background-size: 200% 100%;
  animation: progressGlow 3s ease-in-out infinite;
}

/* Hexagon bullet point for lists */
.lab-hexagon-bullet::before {
  content: '';
  position: absolute;
  left: var(--spacing-lab-sm);
  top: 50%;
  transform: translateY(-50%);
  width: 1rem;
  height: 1rem;
  background: var(--color-lab-cyan);
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  animation: pulse 2s ease-in-out infinite;
}

/* LED glow text effects */
.lab-glow-cyan {
  text-shadow: var(--shadow-led-md) rgba(6, 182, 212, 0.5);
}

.lab-glow-blue {
  text-shadow: var(--shadow-led-md) rgba(14, 165, 233, 0.5);
}

.lab-glow-purple {
  text-shadow: var(--shadow-led-md) rgba(139, 92, 246, 0.4);
}

/* Specific reveal.js overrides using variables */
.reveal h1 {
  font-size: 4rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--color-lab-blue), var(--color-lab-cyan));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: var(--shadow-led-lg) rgba(14, 165, 233, 0.5);
  margin-bottom: var(--spacing-lab-lg);
}

.reveal h2 {
  font-size: 2.5rem;
  color: var(--color-lab-cyan);
  text-shadow: var(--shadow-led-sm) rgba(6, 182, 212, 0.5);
  margin-bottom: var(--spacing-lab-md);
}

.reveal h3 {
  font-size: 1.75rem;
  color: var(--color-lab-purple);
  text-shadow: var(--shadow-led-sm) rgba(139, 92, 246, 0.4);
  margin-bottom: var(--spacing-lab-md);
}

.reveal .progress {
  height: 6px;
  border-radius: 3px;
}

.reveal .progress span {
  background: linear-gradient(90deg, 
    var(--color-lab-blue), 
    var(--color-lab-cyan), 
    var(--color-lab-purple));
  background-size: 200% 100%;
  animation: progressGlow 3s ease-in-out infinite;
}

/* Apply lab background to all slides */
.reveal .slides section {
  animation: subtleFloat 6s ease-in-out infinite;
}

/* Reveal controls styling */
.reveal .controls button {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(30, 41, 59, 0.8);
  border: 2px solid var(--color-lab-cyan);
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
  box-shadow: var(--shadow-led-md) rgba(6, 182, 212, 0.3);
}

.reveal .controls button:hover {
  background: rgba(6, 182, 212, 0.2);
  border-color: var(--color-lab-blue);
  box-shadow: var(--shadow-led-lg) rgba(6, 182, 212, 0.5);
  transform: scale(1.1);
}

/* Slide numbering */
.reveal .slide-number {
  font-family: 'Consolas', 'Monaco', 'Lucida Console', monospace;
  font-weight: 600;
  background: rgba(30, 41, 59, 0.9);
  color: var(--color-lab-cyan);
  padding: 0.5rem 1.2rem;
  border-radius: 25px;
  border: 1px solid var(--color-lab-cyan);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-led-md) rgba(6, 182, 212, 0.3);
}

/* Enhanced code styling */
.reveal pre {
  font-family: 'Consolas', 'Monaco', 'Lucida Console', monospace;
  background: var(--color-gray-900);
  border: 1px solid var(--color-gray-700);
  border-radius: var(--radius-lab);
  padding: var(--spacing-lab-md);
  margin: var(--spacing-lab-md) 0;
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  position: relative;
}

.reveal pre::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-lab-blue), var(--color-lab-cyan));
  border-radius: var(--radius-lab) var(--radius-lab) 0 0;
}

.reveal code {
  font-family: 'Consolas', 'Monaco', 'Lucida Console', monospace;
  background: rgba(6, 182, 212, 0.15);
  color: var(--color-lab-cyan);
  padding: 0.3rem 0.6rem;
  border-radius: 6px;
  border: 1px solid rgba(6, 182, 212, 0.3);
  font-size: 0.9em;
}

/* Enhanced strong text styling */
.reveal strong {
  color: var(--color-lab-green);
  font-weight: 600;
  text-shadow: var(--shadow-led-sm) rgba(16, 185, 129, 0.3);
}

/* Fragment enhancements */
.reveal .fragment.highlight-current-blue.current-fragment {
  color: var(--color-lab-cyan);
  text-shadow: var(--shadow-led-md) rgba(6, 182, 212, 0.6);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .reveal h1 {
    font-size: 2.5rem;
  }
  
  .reveal h2 {
    font-size: 2rem;
  }
  
  .reveal .slides section {
    padding: var(--spacing-lab-md);
    margin: var(--spacing-lab-sm);
  }
}