/* Навигационное меню для всех открыток nata/public_html */
.navigation-menu {
    position: relative;
    z-index: 2;
    margin-top: 30px;
    padding: 20px;
    background: rgba(214, 222, 227, 0.1);
    border-radius: 15px;
    border: 1px solid rgba(214, 222, 227, 0.2);
}
.nav-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    max-width: 500px;
    margin: 0 auto;
    width: 100%;
    box-sizing: border-box;
}
.nav-link {
    min-width: 0;
    max-width: none;
    width: 100%;
    display: inline-block;
    padding: 12px 22px;
    background: rgba(68,68,68,0.6);
    color: #eee;
    text-decoration: none;
    border-radius: 8px;
    font-size: 18px;
    font-weight: bold;
    transition: all 0.3s ease;
    border: 1px solid rgba(200,200,200,0.15);
    text-align: center;
    box-sizing: border-box;
}
.nav-link:hover {
    background: rgba(90,90,90,0.7);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}
.nav-link.current {
    background: rgba(40,40,40,0.7);
    color: #fff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}
.nav-link.current:hover {
    background: rgba(68,68,68,0.6);
}
@media (max-width: 768px) {
    .navigation-menu {
        margin-top: 20px;
        padding: 15px;
    }
    .nav-links {
        gap: 8px;
    }
    .nav-link {
        padding: 10px 16px;
        font-size: 16px;
        min-width: 80px;
    }
}
@media (max-width: 480px) {
    .nav-links {
        gap: 6px;
    }
    .nav-link {
        padding: 8px 10px;
        font-size: 14px;
        min-width: 60px;
    }
}