/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* General layout */
body {
  font-family: Arial, sans-serif;
  background-color: #e6f2e6;
  color: #1b5e20;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Header */
header {
  background-color: #2b7e2e;
  color: white;
  width: 100%;
  text-align: center;
  padding: 20px 0;
  box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

header h1 {
  font-size: 2rem;
}

/* Chat container (two columns) */
.chat-container {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
  width: 90%;
  max-width: 1200px;
  margin-top: 30px;
}

/* Each chat section */
.chat-section {
  background-color: #c8e6c9;
  border: 2px solid #4caf50;
  border-radius: 10px;
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.chat-section h2 {
  color: #0b3d0b;
  margin-bottom: 15px;
}

/* Chat box */
.chat-box {
  background-color: #fff;
  border: 2px solid #4caf50;
  border-radius: 8px;
  width: 100%;
  height: 500px;
  overflow-y: auto;
  padding: 10px;
  margin-bottom: 15px;
}

/* Form styling */
.chat-form {
  display: flex;
  flex-direction: column;
  width: 100%;
}

.chat-form input {
  padding: 10px;
  margin-bottom: 10px;
  border: 2px solid #2f6931;
  border-radius: 5px;
  font-size: 1rem;
}

.chat-form button {
  background-color: #206223;
  color: white;
  padding: 10px;
  border: none;
  border-radius: 5px;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.3s;
}

.chat-form button:hover {
  background-color: #3aa940;
}

/* Messages */
.message {
  background-color: #e8f5e9;
  border: 1px solid #4caf50;
  border-radius: 8px;
  padding: 8px 12px;
  margin-bottom: 8px;
}

.message .author {
  font-weight: bold;
  color: #1b5e20;
}

.message .text {
  color: #2e7d32;
}

.message .time {
  font-size: 0.8rem;
  color: #555;
  text-align: right;
}