:root {
  --bg: #0c0a0b;
  --bg-elev: #161214;
  --bg-panel: #121014;
  --border: #3a2a32;
  --accent: #e11d48;
  --accent-2: #fb7185;
  --user-bg: #1a1216;
  --ai-bg: #120e11;
}
.topbar {
  background: linear-gradient(90deg, rgba(225,29,72,0.22), transparent 50%),
              linear-gradient(180deg, #1a1216, #0c0a0b);
}
.topbar h1 {
  background: linear-gradient(90deg, #fecdd3, #fb7185);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.chat {
  background:
    radial-gradient(800px 360px at 90% -10%, rgba(225,29,72,0.14), transparent),
    var(--bg);
}