body {
  display: grid;
  height: 100dvh;
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    Oxygen,
    Ubuntu,
    Cantarell,
    "Open Sans",
    "Helvetica Neue",
    sans-serif;
  background: #f0f0f0;
  place-content: center;
}

main {
  width: 400px;
  max-width: 100%;
  height: 70vh;
  margin-bottom: 16px;
  padding: 8px;

  overflow-y: auto;

  background: #fff;
  border: 1px solid #ccc;
  border-radius: 4px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  scroll-behavior: smooth;
}

ul {
  display: flex;
  flex-direction: column;
  padding: 0;
  list-style: none;
}

.message {
  display: flex;
  flex-direction: column;
  margin: 4px 0;
  padding: 4px 8px;

  span {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    font-weight: 500;
    font-size: 12px;
    background: #eee;
    border-radius: 999999px;
  }

  p {
    margin-top: 4px;
    padding: 4px 8px;
    border-radius: 4px;
  }

  &.user {
    align-items: flex-end;
    align-self: flex-end;

    span,
    p {
      background: rgb(219, 236, 255);
    }
  }

  &.bot {
    align-self: flex-start;

    span,
    p {
      background: rgb(198, 255, 220);
    }
  }
}

form {
  display: flex;

  input {
    flex-grow: 1;
    margin-right: 8px;
    padding: 8px;
    border: 0;
    border: 1px solid #ccc;
    border-radius: 999999px;
  }

  button {
    padding: 8px;
    color: white;
    background: #09f;
    border: 0;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.3s ease;

    &[disabled] {
      background: #ccc;
      opacity: 0.6;
      pointer-events: none;
    }

    &:hover {
      background: rgb(0, 104, 173);
    }
  }
}

small {
  position: fixed;
  right: 0;
  bottom: 10px;
  left: 0;
  width: 400px;
  margin: auto;
  color: #555;
  font-size: 10px;
}

.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  margin-top: 50%;
  text-align: center;

  i {
    width: 2.5em;
    height: 2.5em;
    border: 0.4em solid transparent;
    border-color: #eee;
    border-top-color: #3e67ec;
    border-radius: 50%;
    animation: loadingspin 1s linear infinite;
    pointer-events: none;
  }

  h4 {
    margin-bottom: 8px;
    color: #444;
  }

  h5 {
    margin: 0;
    font-weight: 400;
    font-size: 10px;
    opacity: 0.4;
  }
}

@keyframes loadingspin {
  100% {
    transform: rotate(360deg);
  }
}