frontend/src/index.css

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

@layer base {
  * { box-sizing: border-box; }

  html, body, #root {
    height: 100%;
    margin: 0;
    padding: 0;
    background: #0a0a0f;
    color: #e8e8f0;
    font-family: 'Inter', system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
  }

  ::-webkit-scrollbar { width: 5px; height: 5px; }
  ::-webkit-scrollbar-track { background: transparent; }
  ::-webkit-scrollbar-thumb { background: #2a2a38; border-radius: 4px; }
  ::-webkit-scrollbar-thumb:hover { background: #3b3b50; }

  ::selection { background: rgba(59,127,255,0.3); }
}

@layer components {
  .btn-primary {
    @apply bg-accent hover:bg-accent-hover text-white font-medium px-4 py-2 rounded-lg
           transition-all duration-150 disabled:opacity-40 disabled:cursor-not-allowed
           active:scale-95;
  }

  .btn-ghost {
    @apply text-gray-400 hover:text-white hover:bg-surface-3 px-3 py-2 rounded-lg
           transition-all duration-150 active:scale-95;
  }

  .input-field {
    @apply bg-surface-3 border border-white/10 rounded-xl px-4 py-3 text-white
           placeholder-gray-500 focus:outline-none focus:border-accent/60 focus:ring-1
           focus:ring-accent/30 transition-all duration-150 w-full;
  }

  .sidebar-item {
    @apply flex items-center gap-2 px-3 py-2 rounded-lg text-sm text-gray-400
           hover:text-white hover:bg-surface-3 cursor-pointer transition-all duration-150
           truncate;
  }

  .sidebar-item.active {
    @apply bg-surface-3 text-white;
  }

  .glass-card {
    @apply bg-surface-2/80 backdrop-blur-sm border border-white/5 rounded-2xl;
  }
}

/* Typing animation dots */
.typing-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #3b7fff;
  display: inline-block;
  animation: pulseDot 1.4s ease-in-out infinite;
}
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes pulseDot {
  0%, 80%, 100% { transform: scale(0.4); opacity: 0.4; }
  40% { transform: scale(1); opacity: 1; }
}

/* Markdown prose overrides for dark theme */
.prose-dark { color: #d4d4e8; }
.prose-dark h1,.prose-dark h2,.prose-dark h3 { color: #fff; }
.prose-dark strong { color: #fff; }
.prose-dark code {
  background: #1f1f28; color: #00c9a7;
  padding: 2px 6px; border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85em;
}
.prose-dark pre {
  background: #111118; border: 1px solid rgba(255,255,255,0.06);
  border-radius: 10px; padding: 16px; overflow-x: auto;
}
.prose-dark a { color: #3b7fff; }
.prose-dark ul { list-style: disc; padding-left: 1.4em; }
.prose-dark ol { list-style: decimal; padding-left: 1.4em; }
.prose-dark li { margin: 4px 0; }
.prose-dark blockquote {
  border-left: 3px solid #3b7fff; padding-left: 12px;
  color: #9999b8; margin: 12px 0;
}
.prose-dark hr { border-color: rgba(255,255,255,0.08); margin: 20px 0; }