* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
}

body {
  background: #f5f5f5;
  color: #333;
}

.container {
  width: 100%;
  max-width: 800px;
  margin: 50px auto;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.tabs {
  display: flex;
  border-bottom: 1px solid #ddd;
}

.tab {
  flex: 1;
  text-align: center;
  padding: 15px;
  cursor: pointer;
  background: #f9f9f9;
  border-right: 1px solid #ddd;
  transition: background 0.3s;
}

.tab:last-child {
  border-right: none;
}

.tab.active {
  background: #007bff;
  color: #fff;
  font-weight: bold;
}

.tab-content {
  display: none;
  padding: 20px;
}

.tab-content.active {
  display: block;
}

.form-group {
  margin-bottom: 15px;
}

label {
  display: block;
  font-weight: bold;
  margin-bottom: 5px;
}

input, select, button {
  width: 100%;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 4px;
}

button {
  background: #007bff;
  color: #fff;
  border: none;
  cursor: pointer;
  transition: background 0.3s;
}

button:hover {
  background: #0056b3;
}

.checkbox-group {
  display: flex;
  flex-direction: column;
}

.checkbox-group label {
  flex-direction: row-reverse;
  display: flex;
  align-items: center;
  margin-bottom: 10px;
}

.checkbox-group input {
  margin-right: 10px;
}