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

@layer base {
  html {
    font-family: 'Inter', system-ui, sans-serif;
  }
  
  body {
    @apply bg-gray-50 dark:bg-gray-900 text-gray-900 dark:text-white;
  }
}

@layer components {
  .btn-primary {
    @apply bg-primary-500 hover:bg-primary-600 text-white font-medium py-2 px-4 rounded-lg transition-colors duration-200 focus:outline-none focus:ring-2 focus:ring-primary-500 focus:ring-offset-2;
  }
  
  .btn-secondary {
    @apply bg-gray-200 hover:bg-gray-300 dark:bg-gray-700 dark:hover:bg-gray-600 text-gray-900 dark:text-white font-medium py-2 px-4 rounded-lg transition-colors duration-200 focus:outline-none focus:ring-2 focus:ring-gray-500 focus:ring-offset-2;
  }
  
  .input-field {
    @apply w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:outline-none focus:ring-2 focus:ring-primary-500 focus:border-transparent bg-white dark:bg-gray-700 text-gray-900 dark:text-white placeholder-gray-500 dark:placeholder-gray-400;
  }
  
  .message-bubble-own {
    @apply bg-primary-500 text-white rounded-2xl rounded-br-none shadow-message;
  }
  
  .message-bubble-other {
    @apply bg-gray-200 dark:bg-gray-700 text-gray-900 dark:text-white rounded-2xl rounded-bl-none shadow-message dark:shadow-message-dark;
  }
  
  .sidebar-item {
    @apply flex items-center space-x-3 p-3 rounded-lg hover:bg-gray-100 dark:hover:bg-gray-700 transition-colors duration-200 cursor-pointer;
  }
  
  .sidebar-item-active {
    @apply bg-primary-50 dark:bg-primary-900/20 border-r-2 border-primary-500;
  }
}

@layer utilities {
  .scrollbar-thin {
    scrollbar-width: thin;
    scrollbar-color: rgba(156, 163, 175, 0.5) transparent;
  }
  
  .scrollbar-thin::-webkit-scrollbar {
    width: 6px;
  }
  
  .scrollbar-thin::-webkit-scrollbar-track {
    background: transparent;
  }
  
  .scrollbar-thin::-webkit-scrollbar-thumb {
    background-color: rgba(156, 163, 175, 0.5);
    border-radius: 3px;
  }
  
  .scrollbar-thin::-webkit-scrollbar-thumb:hover {
    background-color: rgba(156, 163, 175, 0.7);
  }
  
  .animate-pulse-slow {
    animation: pulse 3s cubic-bezier(0.4, 0, 0.6, 1) infinite;
  }
}

/* Custom scrollbar for chat area */
.chat-scrollbar {
  scrollbar-width: thin;
  scrollbar-color: rgba(156, 163, 175, 0.3) transparent;
}

.chat-scrollbar::-webkit-scrollbar {
  width: 8px;
}

.chat-scrollbar::-webkit-scrollbar-track {
  background: transparent;
}

.chat-scrollbar::-webkit-scrollbar-thumb {
  background-color: rgba(156, 163, 175, 0.3);
  border-radius: 4px;
}

.chat-scrollbar::-webkit-scrollbar-thumb:hover {
  background-color: rgba(156, 163, 175, 0.5);
}

/* Loading animation */
.loading-dots:after {
  content: '.';
  animation: dots 1.5s steps(5, end) infinite;
}

@keyframes dots {
  0%, 20% {
    color: rgba(0,0,0,0);
    text-shadow:
      .25em 0 0 rgba(0,0,0,0),
      .5em 0 0 rgba(0,0,0,0);
  }
  40% {
    color: currentColor;
    text-shadow:
      .25em 0 0 rgba(0,0,0,0),
      .5em 0 0 rgba(0,0,0,0);
  }
  60% {
    text-shadow:
      .25em 0 0 currentColor,
      .5em 0 0 rgba(0,0,0,0);
  }
  80%, 100% {
    text-shadow:
      .25em 0 0 currentColor,
      .5em 0 0 currentColor;
  }
}

/* File upload zone styles */
.file-upload-zone {
  @apply border-2 border-dashed border-gray-300 dark:border-gray-600 rounded-lg p-8 text-center transition-colors duration-200;
}

.file-upload-zone.active {
  @apply border-primary-500 bg-primary-50 dark:bg-primary-900/10;
}

/* Typing indicator */
.typing-indicator {
  @apply flex space-x-1 items-center;
}

.typing-dot {
  @apply w-2 h-2 bg-gray-500 rounded-full animate-bounce;
}

.typing-dot:nth-child(2) {
  animation-delay: 0.1s;
}

.typing-dot:nth-child(3) {
  animation-delay: 0.2s;
}