@import "tailwindcss";
@import "highlight.js/styles/base16/material-palenight.min.css";

@theme {
  /* Theme-aware colors mapped to CSS custom properties */
  --color-pc-base: var(--pc-bg-base);
  --color-pc-surface: var(--pc-bg-surface);
  --color-pc-elevated: var(--pc-bg-elevated);
  --color-pc-input: var(--pc-bg-input);
  --color-pc-code: var(--pc-bg-code);
  --color-pc-border: var(--pc-border);
  --color-pc-border-strong: var(--pc-border-strong);
  --color-pc-text: var(--pc-text-primary);
  --color-pc-text-secondary: var(--pc-text-secondary);
  --color-pc-text-muted: var(--pc-text-muted);
  --color-pc-text-faint: var(--pc-text-faint);
  --color-pc-accent: var(--pc-accent);
  --color-pc-accent-light: var(--pc-accent-light);
}

:root {
  --pc-bg-base: #1e1e24;
  --pc-bg-surface: #232329;
  --pc-bg-elevated: #27272a;
  --pc-bg-input: #1a1a20;
  --pc-bg-sidebar: rgba(30,30,36,0.95);
  --pc-bg-code: #1a1a20;
  --pc-border: rgba(255,255,255,0.08);
  --pc-border-strong: rgba(255,255,255,0.1);
  --pc-text-primary: #d4d4d8;
  --pc-text-secondary: #a1a1aa;
  --pc-text-muted: #71717a;
  --pc-text-faint: #52525b;
  --pc-scrollbar-thumb: #52525b;
  --pc-scrollbar-track: #27272a;
  --pc-scrollbar-thumb-hover: #71717a;
  --pc-accent: #22d3ee;
  --pc-accent-light: #67e8f9;
  --pc-accent-dim: rgba(34,211,238,0.3);
  --pc-accent-glow: rgba(34,211,238,0.1);
  --pc-accent-rgb: 34,211,238;
  --pc-hover: rgba(255,255,255,0.05);
  --pc-hover-strong: rgba(255,255,255,0.08);
  --pc-separator: rgba(255,255,255,0.05);
}

* {
  scrollbar-width: thin;
  scrollbar-color: var(--pc-scrollbar-thumb) var(--pc-scrollbar-track);
}

/* WebKit scrollbar styling (Chrome, Safari, Edge) */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--pc-scrollbar-thumb);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--pc-scrollbar-thumb-hover);
}

/* Textarea-specific: even thinner scrollbar, no horizontal scroll */
textarea::-webkit-scrollbar {
  width: 4px;
  height: 0;
}

textarea::-webkit-scrollbar:horizontal {
  display: none;
}

textarea::-webkit-scrollbar-thumb {
  background: var(--pc-scrollbar-thumb);
  border-radius: 2px;
}

textarea::-webkit-scrollbar-thumb:hover {
  background: var(--pc-scrollbar-thumb-hover);
}

textarea {
  overflow-x: hidden;
  overflow-y: auto;
  overflow-wrap: break-word;
  word-break: break-word;
}

html, body {
  margin: 0;
  background: var(--pc-bg-base);
  color: var(--pc-text-primary);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  overflow-x: hidden;
  max-width: 100vw;
}

@keyframes fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

@keyframes bounce-dot {
  0%, 80%, 100% { transform: translateY(0); opacity: 0.45; }
  40% { transform: translateY(-4px); opacity: 1; }
}

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

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

.bounce-dot {
  animation: bounce-dot 0.9s infinite ease-in-out;
}
.bounce-dot:nth-child(1) { animation-delay: 0s; }
.bounce-dot:nth-child(2) { animation-delay: 0.12s; }
.bounce-dot:nth-child(3) { animation-delay: 0.24s; }

/* Markdown styles */
.markdown-body pre {
  background: var(--pc-bg-code) !important;
  border: 1px solid var(--pc-border);
  border-radius: 12px;
  padding: 16px;
  overflow-x: auto;
  margin: 8px 0;
  font-size: 0.82em;
  line-height: 1.6;
  max-width: 100%;
  box-sizing: border-box;
}

.markdown-body pre code {
  white-space: pre;
  word-break: normal;
  overflow-wrap: normal;
}

.markdown-body code {
  background: var(--pc-accent-glow);
  padding: 2px 6px;
  border-radius: 6px;
  font-size: 0.85em;
}

/* Override highlight.js theme bg to match */
.hljs {
  background: var(--pc-bg-code) !important;
}

.markdown-body p { margin: 4px 0; }
.markdown-body ul, .markdown-body ol { margin: 4px 0; padding-left: 20px; }
.markdown-body blockquote { border-left: 3px solid var(--pc-accent-dim); padding-left: 12px; margin: 8px 0; opacity: 0.8; }
.markdown-body h1, .markdown-body h2, .markdown-body h3 { margin: 12px 0 4px; }
.markdown-body a { color: var(--pc-accent-light); text-decoration: underline; }
.markdown-body table { border-collapse: collapse; margin: 8px 0; display: block; overflow-x: auto; max-width: 100%; }
.markdown-body th, .markdown-body td { border: 1px solid var(--pc-border); padding: 6px 12px; }
.markdown-body th { background: var(--pc-accent-glow); }
.markdown-body img { max-width: 100%; border-radius: 8px; }

/* Highlighted textarea overlay */
.ht-container {
  position: relative;
  flex: 1;
}

.ht-backdrop,
.ht-textarea {
  /* Must share identical text layout */
  font-family: inherit;
  font-size: 0.875rem; /* text-sm */
  line-height: 1.25rem;
  padding: 0.75rem 1rem; /* py-3 px-4 */
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: break-word;
  overflow-x: hidden;
  overflow-y: auto;
  margin: 0;
  box-sizing: border-box;
}

.ht-backdrop {
  position: absolute;
  inset: 0;
  pointer-events: none;
  color: var(--pc-text-primary);
  border: 1px solid transparent;
  border-radius: 1rem; /* rounded-2xl */
  max-height: 200px;
}

.ht-textarea {
  position: relative;
  color: transparent;
  caret-color: var(--pc-text-primary);
  background: transparent !important;
  resize: none;
  z-index: 1;
}

/* Token colors */
.ht-code-block {
  color: #67e8f9; /* cyan-300 */
  background: var(--pc-accent-glow);
  border-radius: 4px;
}

.ht-inline-code {
  color: #67e8f9;
  background: var(--pc-accent-glow);
  border-radius: 3px;
  padding: 0 2px;
}

.ht-bold {
  color: var(--pc-text-primary);
  font-weight: 700;
}

.ht-italic {
  color: var(--pc-text-secondary);
  font-style: italic;
}

.ht-heading {
  color: #a78bfa; /* violet-400 */
  font-weight: 600;
}

.ht-link {
  color: #67e8f9;
  text-decoration: underline;
}

/* Accessibility: respect reduced-motion preferences */
@media (prefers-reduced-motion: reduce) {
  .animate-fade-in {
    animation: none;
  }
  .pulse-dot {
    animation: none;
  }
  .bounce-dot {
    animation: none;
    opacity: 0.7;
  }
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}