:root {
  color-scheme: light dark;
  font-family: system-ui, sans-serif;
}
body {
  margin: 0;
  background: #0f172a;
  color: #e2e8f0;
}
main {
  max-width: 42rem;
  margin: auto;
  padding: 2rem 1rem;
}
section {
  background: #1e293b;
  border-radius: 0.75rem;
  padding: 1rem;
  margin: 1rem 0;
}
form {
  display: grid;
  gap: 0.6rem;
}
input,
select,
button {
  font: inherit;
  padding: 0.55rem;
  border-radius: 0.4rem;
  border: 1px solid #64748b;
}
fieldset {
  display: grid;
  gap: 0.45rem;
  border: 1px solid #64748b;
  border-radius: 0.4rem;
  padding: 0.7rem;
}
.chat-option {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}
.chat-option input {
  width: 1.1rem;
  height: 1.1rem;
}
button {
  cursor: pointer;
  background: #38bdf8;
  color: #082f49;
  border: 0;
}
li {
  margin: 0.5rem 0;
}
small {
  opacity: 0.7;
}