body {
  font-family: Arial, sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: #f5f5f5;
  margin: 0;
  padding: 0;
}

/* Header Section */
.header {
  width: 100%;
  padding: 10px 20px;
  background: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid #e0e0e0;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.header h1 {
  margin: 0;
  font-size: 24px;
  color: #c62828; /* Red for branding */
  font-weight: bold;
  letter-spacing: 1px;
}

.logo {
  height: 40px;
  width: auto;
}

/* Chat Container */
.chat-container {
  width: 400px;
  height: 500px;
  background: white;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0,0,0,0.2);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  margin-top: 20px;
}

.chat-box {
  flex: 1;
  padding: 10px;
  overflow-y: auto;
}

.message {
  max-width: 70%;
  margin: 5px;
  padding: 10px;
  border-radius: 10px;
  word-wrap: break-word;
}

.left {
  background: #ffcdd2; /* Light red */
  align-self: flex-start;
}

.right {
  background: #ef9a9a; /* Deeper red */
  align-self: flex-end;
}

.input-box {
  display: flex;
  border-top: 1px solid #ccc;
}

.input-box input {
  flex: 1;
  padding: 10px;
  border: none;
  outline: none;
}

.input-box button {
  padding: 10px 15px;
  border: none;
  background: #c62828; /* Red theme */
  color: white;
  cursor: pointer;
}

.input-box button:hover {
  background: #b71c1c;
}