* {
  box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
	padding: 20px;
    display: flex;
    align-items: center;
	font-family: system-ui, sans-serif;
    color: #20352d;
    background: linear-gradient(135deg, #d9fbe8, #e8f0ff);
}

header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-bottom: 18px;
  border-bottom: 1px solid #e8f0eb;
}

.avatar {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  font-size: 30px;
  background: #dcfce7;
  border-radius: 18px;
}

h1 {
    margin: 0;
	font-size: 25px;
}

header p {
	margin: 4px 0 0;
    color: #668073;
    font-size: 14px;
}

.card {
    width: 100%;
	max-width: 520px;
    height: min(700px, 90vh);
    min-height: 420px;
    display: flex;
    flex-direction: column;
	margin: 0 auto;
	padding: 22px;
    background: white;
	border: 1px solid #dceee3;
	border-radius: 24px;
    box-shadow: 0 16px 45px #244c3518;
}

.chat {
  flex: 1;
  overflow-y: auto;
  padding: 22px 0;
}

.message {
  max-width: 90%;
  padding: 13px 15px;
  border-radius: 17px;
  line-height: 1.6;
  overflow-wrap: anywhere;
}

.bot {
  background: #e9f8ee;
  border-bottom-left-radius: 5px;
}

#chat-form {
  display: flex;
  gap: 9px;
  padding-top: 14px;
  border-top: 1px solid #e8f0eb;
}

input {
  flex: 1;
  min-width: 0;
  padding: 13px;
  font: inherit;
  border: 1px solid #d6e5dc;
  border-radius: 14px;
  outline: none;
}

input:focus {
  border-color: #36a66b;
}

button {
  padding: 12px 15px;
  font: inherit;
  font-weight: 600;
  color: white;
  background: #26975a
  border: none;
  border-radius: 14px;
  cursor: pointer;
}

button:hover {
  background: #197746;
}

.note {
  margin: 12px 0 0;
  text-align: center;
  font-size: 12px;
  color: #819087;
}

@media (max-width: 480px) {
  body {
    padding: 10px;
  }

  .card {
    height: 92vh;
    padding: 16px;
    border-radius: 20px;
  }
}