* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background: #0b4f91 url('background.png') no-repeat center bottom fixed;
    background-size: cover;
}

.page-frame {
    min-height: 100vh;
    border: 10px solid #004a9f;
    padding: 20px;
}

.header {
    display: flex;
    align-items: center;
}

.logo {
    width: 180px;
    height: auto;
}

.content-box {
    max-width: 700px;
    margin: 80px auto;
    background: rgba(255,255,255,0.9);
    padding: 40px 32px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.content-box h1 {
    margin-top: 0;
    margin-bottom: 16px;
    color: #004a9f;
}

.content-box p {
    margin: 8px 0;
    color: #003366;
}

.content-box a {
    color: #004a9f;
    font-weight: bold;
    text-decoration: none;
}

.content-box a:hover {
    text-decoration: underline;
}

/* Mobile */
@media (max-width: 600px) {
    .page-frame {
        border-width: 6px;
        padding: 12px;
    }
    .logo {
        width: 140px;
    }
    .content-box {
        margin: 40px auto;
        padding: 24px 18px;
    }
}