body {
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #f7f9fb;
    color: #333;
}
header {
    background: #0b5ed7;
    padding: 15px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
header img {
    height: 45px;
}
nav a {
    color: #fff;
    margin-left: 20px;
    text-decoration: none;
    font-weight: 500;
}
nav a:hover {
    text-decoration: underline;
}
.container {
    max-width: 1100px;
    margin: auto;
    padding: 60px 20px;
}
h1, h2 {
    color: #0b5ed7;
}
.card {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
    margin-bottom: 25px;
}
footer {
    background: #0b5ed7;
    color: #fff;
    text-align: center;
    padding: 20px;
    margin-top: 40px;
}
.button {
    display: inline-block;
    background: #198754;
    color: #fff;
    padding: 12px 22px;
    border-radius: 6px;
    text-decoration: none;
    margin-top: 15px;
}
.button:hover {
    background: #157347;
}