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

body {
    background-color: #f4f6f9;
    color: #333;
    line-height: 1.6;
}

header {
    background-color: #2c3e50;
    color: white;
    text-align: center;
    padding: 40px 20px;
}

header h1 {
    font-size: 2.2rem;
    margin-bottom: 10px;
}

.container {
    max-width: 800px;
    margin: 30px auto;
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

h2 {
    color: #2c3e50;
    margin-bottom: 15px;
}

p {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.btn {
    display: inline-block;
    background-color: #3498db;
    color: white;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: background 0.3s;
}

.btn:hover {
    background-color: #2980b9;
}