@tailwind base;
@tailwind components;
@tailwind utilities;

:root {
  --foreground-rgb: 0, 0, 0;
  --background-start-rgb: 255, 255, 255;
  --background-end-rgb: 255, 255, 255;
}

@media (prefers-color-scheme: dark) {
  :root {
    --foreground-rgb: 255, 255, 255;
    --background-start-rgb: 30, 30, 30;
    --background-end-rgb: 30, 30, 30;
  }
}

body {
  color: rgb(var(--foreground-rgb));
  background: linear-gradient(
      to bottom,
      transparent,
      rgb(var(--background-end-rgb))
    )
    rgb(var(--background-start-rgb));
  min-height: 100vh;
}

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

::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: #888;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #555;
}

/* Canvas cursor */
.canvas-draw {
  cursor: crosshair;
}

.canvas-eraser {
  cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='10' fill='white' stroke='black' stroke-width='2'/%3E%3C/svg%3E") 12 12, auto;
}

/* Animation for reactions */
@keyframes float-up {
  0% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translateY(-100px) scale(1.5);
  }
}

.reaction-float {
  animation: float-up 2s ease-out forwards;
}

/* Chat message animation */
@keyframes slide-in {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.chat-message {
  animation: slide-in 0.3s ease-out;
}

/* Poll bar animation */
@keyframes grow-bar {
  from {
    width: 0;
  }
}

.poll-bar {
  animation: grow-bar 0.5s ease-out;
}

/* Doubt card highlight */
.doubt-new {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(255, 0, 0, 0.4);
  }
  50% {
    box-shadow: 0 0 0 10px rgba(255, 0, 0, 0);
  }
}

/* Connection status indicator */
.status-connected {
  background-color: #22c55e;
  box-shadow: 0 0 8px #22c55e;
}

.status-disconnected {
  background-color: #ef4444;
  box-shadow: 0 0 8px #ef4444;
}

.status-connecting {
  background-color: #f59e0b;
  box-shadow: 0 0 8px #f59e0b;
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}