body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: rgb(0, 128, 0);
  color: white;
}

.container {
  margin: auto;
  padding: 20px;
}



.header {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 30px;
}

/*.title img {
  width: 50px;
}*/

.nav a {
  margin: 0 15px;
  text-decoration: none;
  color: white;
}

#about{
    max-width: 1000px;
}

.messages {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 1000px;
}

.message {
  display: flex;
  align-items: center;
  width: auto;
  padding: 10px;
}

.message.green {
  justify-content: flex-start;
}

.message.red {
  justify-content: flex-end;
}

.avatar img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
}

.text-bubble {
  max-width: 60%;
  padding: 10px 15px;
  background-color: white;
  border-radius: 20px;
  position: relative;
  color: black;
}

.text-bubble::after {
  content: '';
  position: absolute;
  width: 0;
  height: 0;
}

.message.green .text-bubble {
  background-color: #28a745;
  border-bottom-left-radius: 0;
}

.message.green .text-bubble::after {
  left: -10px;
  top: 50%;
  transform: translateY(-50%);
  border: 10px solid transparent;
  border-right-color: #28a745;
}

.message.red .text-bubble {
  background-color: #dc3545;
  border-bottom-right-radius: 0;
}

.message.red .text-bubble::after {
  right: -10px;
  top: 50%;
  transform: translateY(-50%);
  border: 10px solid transparent;
  border-left-color: #dc3545;
}


table {
  width: 80%;
  border-collapse: collapse;
  margin: 20px auto;
}

th, td {
  border: 1px solid #ddd;
  padding: 8px;
  text-align: center;
}

th {
  background-color: rgb(0, 128, 0);
  font-weight: bold;
}