body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f8f9fa;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    color: #3498db;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

h1,
h2,
h3 {
    color: #2c3e50;
}

.card {
    background: white;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
    border: 1px solid #eee;
}

.btn {
    padding: 10px 20px;
    background: #3498db;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    text-align: center;
    display: inline-block;
    margin: 10px 0;
}

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

footer {
    text-align: center;
    margin-top: 60px;
    padding: 20px;
    color: #777;
    font-size: 0.9rem;
    border-top: 1px solid #eee;
}