frontend/app/globals.css

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

:root {
  --font-sans: "Inter", system-ui, sans-serif;
}

html,
body {
  height: 100%;
  background: #07080c;
  color: #e6e9f0;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection {
  background: rgba(99, 102, 241, 0.35);
  color: #fff;
}

/* refined scrollbars */
* {
  scrollbar-width: thin;
  scrollbar-color: #252b3d transparent;
}
*::-webkit-scrollbar {
  width: 9px;
  height: 9px;
}
*::-webkit-scrollbar-thumb {
  background: #1c2130;
  border-radius: 9px;
  border: 2px solid transparent;
  background-clip: content-box;
}
*::-webkit-scrollbar-thumb:hover {
  background: #323a52;
  background-clip: content-box;
}

@layer components {
  /* frosted glass surface */
  .glass {
    background: rgba(16, 19, 28, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.06);
  }
  .card {
    background: linear-gradient(180deg, rgba(22, 26, 38, 0.9), rgba(16, 19, 28, 0.9));
    border: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: 0 1px 0 0 rgba(255, 255, 255, 0.04) inset,
      0 12px 32px -16px rgba(0, 0, 0, 0.8);
  }
  /* gradient hairline used under headers */
  .hairline {
    height: 1px;
    background: linear-gradient(
      90deg,
      transparent,
      rgba(99, 102, 241, 0.4),
      rgba(34, 211, 238, 0.25),
      transparent
    );
  }
}

/* skeleton shimmer */
.skeleton {
  position: relative;
  overflow: hidden;
  background: #161a26;
}
.skeleton::after {
  content: "";
  position: absolute;
  inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.06),
    transparent
  );
  animation: shimmer 1.6s infinite;
}
@keyframes shimmer {
  100% {
    transform: translateX(100%);
  }
}

/* streaming caret */
.caret::after {
  content: "▋";
  margin-left: 1px;
  color: #818cf8;
  animation: caret-blink 1s steps(2) infinite;
}
@keyframes caret-blink {
  0%,
  100% {
    opacity: 0;
  }
  50% {
    opacity: 1;
  }
}

/* typing dots */
.typing-dot {
  animation: blink 1.4s infinite both;
}
.typing-dot:nth-child(2) {
  animation-delay: 0.2s;
}
.typing-dot:nth-child(3) {
  animation-delay: 0.4s;
}
@keyframes blink {
  0%,
  80%,
  100% {
    opacity: 0.2;
  }
  40% {
    opacity: 1;
  }
}

/* ---------------- markdown prose ---------------- */
.prose-chat {
  font-size: 0.9rem;
  line-height: 1.65;
  color: #d6dae6;
}
.prose-chat > *:first-child {
  margin-top: 0;
}
.prose-chat > *:last-child {
  margin-bottom: 0;
}
.prose-chat p {
  margin: 0.5rem 0;
}
.prose-chat ul,
.prose-chat ol {
  margin: 0.5rem 0;
  padding-left: 1.25rem;
}
.prose-chat li {
  margin: 0.2rem 0;
}
.prose-chat ul {
  list-style: disc;
}
.prose-chat ol {
  list-style: decimal;
}
.prose-chat h1,
.prose-chat h2,
.prose-chat h3 {
  font-weight: 600;
  color: #fff;
  margin: 0.8rem 0 0.4rem;
  line-height: 1.3;
}
.prose-chat h1 {
  font-size: 1.05rem;
}
.prose-chat h2 {
  font-size: 1rem;
}
.prose-chat h3 {
  font-size: 0.92rem;
}
.prose-chat code {
  background: #0b0d14;
  padding: 0.1rem 0.4rem;
  border-radius: 5px;
  font-size: 0.82em;
  border: 1px solid rgba(255, 255, 255, 0.06);
}
.prose-chat pre {
  background: #07080c;
  border: 1px solid #252b3d;
  padding: 0.85rem;
  border-radius: 10px;
  overflow-x: auto;
  margin: 0.6rem 0;
}
.prose-chat pre code {
  background: transparent;
  border: 0;
  padding: 0;
}
.prose-chat strong {
  color: #fff;
  font-weight: 600;
}
.prose-chat a {
  color: #a5b4fc;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.prose-chat blockquote {
  border-left: 3px solid #4f46e5;
  padding-left: 0.8rem;
  margin: 0.6rem 0;
  color: #aeb4c4;
}
.prose-chat table {
  border-collapse: collapse;
  margin: 0.6rem 0;
  font-size: 0.84em;
  width: 100%;
}
.prose-chat th,
.prose-chat td {
  border: 1px solid #252b3d;
  padding: 0.35rem 0.6rem;
  text-align: left;
}
.prose-chat th {
  background: #10131c;
  font-weight: 600;
  color: #c7d2fe;
}
.prose-chat hr {
  border: 0;
  border-top: 1px solid #252b3d;
  margin: 0.8rem 0;
}