body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #A4CFBB;
}

header {
  background: #1C2321;
  color: #A4CFBB;
  padding: 15px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-weight: bold;
  font-size: 20px;
  cursor: pointer;
}

nav a {
  color: #A4CFBB;
  margin-left: 15px;
  text-decoration: none;
}

.container {
  padding: 30px;
}

.card {
  background: white;
  padding: 20px;
  border-radius: 12px;
  margin-top: 15px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

input, button {
  padding: 10px;
  margin-top: 10px;
}