body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    background: url('7efd6bf7-020c-45a8-8f20-452b7718e197.jpg') no-repeat center center fixed;
    background-size: cover;
    font-family: Arial, sans-serif;
}

.overlay {
    background: rgba(0, 0, 0, 0.5);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

h1 {
    color: #fff;
    margin-bottom: 40px;
}

nav {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    background: rgba(0, 0, 0, 0.6);
    border-radius: 16px;
    box-shadow: 0 4px 32px rgba(0,0,0,0.4);
    display: flex;
    flex-direction: column;
    gap: 32px;
    min-width: 320px;
    align-items: center;
}

nav li {
    width: 100%;
    text-align: center;
}

nav a {
    display: inline-block;
    width: 80%;
    color: #fff;
    text-decoration: none;
    font-size: 1.4em;
    padding: 18px 0;
    border-radius: 8px;
    background: rgba(255,255,255,0.08);
    transition: background 0.3s, color 0.3s;
    font-weight: bold;
    letter-spacing: 1px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

nav a:hover {
    background: rgba(255,255,255,0.25);
    color: #ffd700;
}

header, footer {
    text-align: center;
    color: #fff;
    text-shadow: 0 2px 8px #000;
}

footer {
    background: #35424a;
    color: #ffffff;
    text-align: center;
    padding: 10px 0;
    position: fixed;
    width: 100%;
    bottom: 0;
    margin-bottom: 16px;
    font-size: 0.9em;
}