body {
  box-sizing: border-box;
  margin: 50px;
  padding: 13px;
  display: flex;
  flex-direction: column;
  max-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--background);
}

.members-count,
.members-list,
.messages {
  border: 1px solid #2c2f33;
  border-radius: 10px;
  background: var(--theme);
  padding: 15px;
  margin-bottom: 15px;
}

.messages {
  flex-shrink: 1;
  overflow: auto;
  height: 300px;
}

.message {
  padding: 5px 0;
}
.message .member {
  display: inline-block;
}

.member {
  padding-right: 10px;
  position: relative;
}

.message-form {
  display: flex;
  flex-shrink: 0;
  border-radius: 10px;
}
.message-form__input {
  flex-grow: 1;
  border: 1px solid #23272a;
  padding: 10px 15px;
  font-size: 16px;
  border-radius: 10px;
  background: var(--theme);
}
.message-form__button {
  margin: 10px;
  border-radius: 10px;
}