:root {
  font-size: 1.125rem;
  
  /* Catppuccin Mocha - Deeper Dark Palette */
  --mocha-crust: #11111b;    /* Deepest dark */
  --mocha-mantle: #181825;   /* Secondary deep dark */
  --mocha-base: #1e1e2e;     /* Standard dark */
  --mocha-surface0: #313244;
  --mocha-text: #cdd6f4;
  --mocha-subtext0: #a6adc8;
  --mocha-blue: #89b4fa;
  --mocha-lavender: #b4befe;

  /* Functional Mapping for a Darker Look */
  --bg0: var(--mocha-crust);    /* Changed to Crust for maximum darkness */
  --bg1: var(--mocha-mantle);   /* Bubbles now use Mantle to look 'sunken' */
  --fg0: var(--mocha-text);
  --fg1: var(--mocha-subtext0);
  --a0: var(--mocha-blue);
}

/* Light mode fallback (stays as Latte for usability) */
@media (prefers-color-scheme: light) {
  :root {
    --bg0: #eff1f5;
    --bg1: #e6e9ef;
    --fg0: #4c4f69;
    --fg1: #6c6f85;
    --a0: #1e66f5;
  }
}

/* Responsive font scaling */
@media (min-width: 600px) { :root { font-size: 1.5rem; } }
@media (min-width: 900px) { :root { font-size: 1.75rem; } }
@media (min-width: 1200px) { :root { font-size: 2rem; } }

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

body, html {
  background: var(--bg0);
  color: var(--fg0);
  scroll-behavior: smooth;
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 100vw;
  min-height: 100dvh;
  font-family: system-ui, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

.messages {
  overflow: auto;
  width: 100vw;
  max-height: 100vh;
  padding: 1rem .9rem;
  /* Hide scrollbar for Chrome, Safari and Opera */
  &::-webkit-scrollbar {
    display: none;
  }

  /* Hide scrollbar for IE, Edge and Firefox */
  -ms-overflow-style: none;  /* IE and Edge */
  scrollbar-width: none;  /* Firefox */
}

.bubble {
  overflow: hidden;
  display: inline-block;
  margin: 0 0 .125rem 0;
  padding: .5rem .85rem;
  line-height: 1.25rem;
  border-radius: 1.25rem;
  transform-origin: 0 100%;
  vertical-align: middle;
  transition: border-radius .25s ease-out .075s;
  /* Added a very subtle border for definition in the dark */
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.bubble.left.cornered {
  border-bottom-left-radius: 0;
}

.bubble.left {
  background: var(--bg1);
  color: var(--fg0);
}

.bubble span {
  display: inline;
}

.bubble span.message {
  opacity: 0; 
  line-height: 1.125;
}

.bubble a {
  color: var(--a0);
  text-decoration: none;
}

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

.bubble .loading {
  position: absolute;
  white-space: pre;
  font-size: 1.625rem;
  line-height: 1rem;
}

.bubble .loading b {
  display: inline-block;
  color: var(--mocha-lavender);
}