body {
    font-family: sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f7f6;
    color: #333;
}
nav {
    display: flex;
    justify-content: space-between;
    padding: 20px 50px;
    background: #ffffff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}
.links a {
    margin-left: 20px;
    text-decoration: none;
    color: #555;
}
.hero {
    text-align: center;
    padding: 100px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}
.btn-primary, .btn-success, .btn-danger {
    padding: 12px 24px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
}
.btn-primary { background: #fff; color: #764ba2; font-weight: bold; margin-top: 20px; }
.btn-success { background: #2ecc71; color: white; }
.btn-danger { background: #e74c3c; color: white; }
.content-section { padding: 60px 50px; text-align: center; }

/* Modal Styling */
.modal {
    display: none; 
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
}
.modal-content {
    background: white;
    width: 90%; max-width: 400px;
    margin: 15% auto;
    padding: 30px;
    border-radius: 8px;
    text-align: center;
}
.modal-content input {
    width: 100%; padding: 10px; margin: 15px 0;
    box-sizing: border-box; border: 1px solid #ccc; border-radius: 4px;
}
.modal-actions { display: flex; justify-content: space-around; }