frontend/src/app/globals.css

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

* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}

html,
body {
  height: 100%;
  overflow: hidden;
}

body {
  color: #e5e5e7;
  background: #1d1d1f;
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: -0.01em;
}

/* Apple-style scrollbar */
::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}

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

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  border: 3px solid #1d1d1f;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

::-webkit-scrollbar-corner {
  background: #1d1d1f;
}

/* Markdown styling in chat - VS Code style */
.prose {
  max-width: none;
  color: #cccccc;
}

.prose code {
  background-color: #2d2d30;
  color: #d4d4d4;
  padding: 0.2em 0.4em;
  border-radius: 3px;
  font-size: 0.875em;
  font-family: 'SF Mono', 'Monaco', 'Menlo', 'Courier New', monospace;
}

.prose pre {
  background-color: #1e1e1e;
  padding: 1em;
  border-radius: 4px;
  overflow-x: auto;
  border: 1px solid #3e3e42;
}

.prose pre code {
  background-color: transparent;
  padding: 0;
}

.prose p {
  margin: 0.5em 0;
}

.prose a {
  color: #3794ff;
  text-decoration: none;
}

.prose a:hover {
  text-decoration: underline;
}

/* Selection color - Apple style */
::selection {
  background-color: rgba(0, 122, 255, 0.3);
  color: #ffffff;
}

::-moz-selection {
  background-color: rgba(0, 122, 255, 0.3);
  color: #ffffff;
}

/* Apple-style focus rings */
button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid rgba(0, 122, 255, 0.6);
  outline-offset: 2px;
}

/* Smooth transitions */
* {
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

/* Animation utilities */
@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.animate-in {
  animation: fade-in 0.3s ease-in-out;
}

/* Resize handle styles */
.resize-handle {
  position: relative;
  width: 4px;
  cursor: col-resize;
  user-select: none;
  background: transparent;
  transition: background-color 0.2s ease, width 0.15s ease;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Clickable area (extends beyond visible width) */
.resize-handle::before {
  content: '';
  position: absolute;
  inset: 0;
  left: -4px;
  right: -4px;
}

/* Visual indicator (three dots) */
.resize-handle::after {
  content: '⋮';
  position: relative;
  z-index: 1;
  font-size: 16px;
  color: rgba(134, 134, 139, 0.4);
  transition: color 0.2s ease;
  pointer-events: none;
  line-height: 1;
}

.resize-handle:hover {
  background: rgba(0, 123, 255, 0.2);
}

.resize-handle:hover::after {
  color: rgba(0, 123, 255, 0.8);
}

.resize-handle:active,
.resize-handle.resizing {
  background: rgba(0, 123, 255, 0.4);
  width: 4px;
}

.resize-handle:active::after,
.resize-handle.resizing::after {
  color: rgba(0, 123, 255, 1);
}

/* Prevent text selection during resize */
body.resizing {
  user-select: none !important;
  cursor: col-resize !important;
}

body.resizing * {
  cursor: col-resize !important;
}