.menuheader26 * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
.menuheader26 {
    font-family: Arial, sans-serif;
}
.menuheader26 header {
    background-color: #222;
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    position: relative;
}
.menuheader26 .site-title {
    font-size: clamp(1.5rem, 5vw, 2rem);
    font-weight: bold;
}
.menuheader26 .site-title a {
    color: #fff;
    text-decoration: none;
}
.menuheader26 nav {
    display: flex;
    gap: 1.5rem;
}
.menuheader26 .nav-item {
    position: relative;
}
.menuheader26 .nav-item > a {
    color: white;
    text-decoration: none;
    padding: 0.5rem;
    display: inline-block;
    font-size: clamp(0.9rem, 2.5vw, 1rem);
}
.menuheader26 .mega-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: #333;
    padding: 1.5rem;
    display: none;
    z-index: 999;
    box-shadow: 0 4px 10px rgba(0,0,0,0.5);
    min-width: 500px;
    max-width: 90vw;
    color: white;
}
.menuheader26 .nav-item:hover .mega-menu {
    display: block;
}
.menuheader26 .year-group {
    margin-bottom: 1rem;
}
.menuheader26 .year-label {
    font-weight: bold;
    color: #00b7eb;
    margin-bottom: 0.25rem;
    display: inline-block;
    font-size: clamp(0.9rem, 2.5vw, 1rem);
}
.menuheader26 .months {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-left: 0.75rem;
}
.menuheader26 .months a {
    color: #ddd;
    text-decoration: none;
    padding: 0.2rem 0.4rem;
    border: 1px solid #555;
    border-radius: 4px;
    font-size: clamp(0.8rem, 2vw, 0.9rem);
}
.menuheader26 .months a:hover {
    background: #555;
}
.menuheader26 .hamburger {
    display: none;
    font-size: 1.5rem;
    background: none;
    border: none;
    color: white;
    cursor: pointer;
}

.menuheader26 .submenu-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1rem;
    cursor: pointer;
    margin-left: 0.25rem;
}


@media (max-width: 768px) {
    .menuheader26 header {
        flex-wrap: wrap;
        padding: 1rem;
    }
    .menuheader26 nav {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 0.5rem;
        padding: 1rem 0;
    }
    .menuheader26 nav.active {
        display: flex;
    }
    .menuheader26 .hamburger {
        display: block;
    }
    .menuheader26 .nav-item {
        width: 100%;
    }
    .menuheader26 .nav-item > a {
        display: block;
        padding: 0.5rem 1rem;
    }
    .menuheader26 .mega-menu {
        position: static;
        width: 100%;
        min-width: unset;
        max-width: unset;
        background: #444;
        padding: 1rem;
        display: none;
    }
    .menuheader26 .nav-item.active .mega-menu {
        display: block;
    }
    .menuheader26 .months {
        margin-left: 0;
        gap: 0.3rem;
    }
        .menuheader26 .submenu-toggle {
        display: inline-block;
    }
    .menuheader26 .nav-item.has-submenu {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    .menuheader26 .nav-item.has-submenu > a {
        flex: 1;
    }
}
@media (max-width: 480px) {
    .menuheader26 .site-title {
        font-size: clamp(1.2rem, 4vw, 1.5rem);
    }
    .menuheader26 .months a {
        font-size: clamp(0.7rem, 1.8vw, 0.8rem);
        padding: 0.15rem 0.3rem;
    }
}