/* =========================================================
   MENU BAR WRAPPER
   ========================================================= */

nav.main-menu-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(90deg, #0f172a, #1e293b);
    font-family: "Segoe UI", Tahoma, Arial, sans-serif;
    box-shadow: 0 2px 10px rgba(0,0,0,.25);
}

/* =========================================================
   MAIN MENU
   ========================================================= */

.main-menu ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.main-menu > ul {
    display: flex;
    align-items: center;
}

.main-menu li {
    position: relative;
}

    /* menu items */
    .main-menu li > a {
        display: block;
        padding: 12px 20px;
        color: #f8fafc;
        text-decoration: none;
        font-size: 14px;
        font-weight: 500;
        border-radius: 10px;
        background: rgba(255,255,255,0.18);
        transition: background .2s ease, transform .2s ease;
    }

        .main-menu li > a:hover {
            transform: translateY(-1px);
        }

.main-menu .selected > a {
    background: rgba(37, 99, 235, 0.9);
}

/* arrow */
.main-menu li:has(ul) > a::after {
    content: " ▾";
    font-size: 11px;
    opacity: 0.6;
}

/* =========================================================
   SUBMENU (desktop)
   ========================================================= */

.main-menu ul ul {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: #1e293b;
    border-radius: 10px;
    box-shadow: 0 12px 28px rgba(0,0,0,.35);
    opacity: 0;
    transform: translateY(10px);
    visibility: hidden;
    pointer-events: none;
    transition: all .2s ease;
}

.main-menu li:hover > ul {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto;
}

.main-menu ul ul li > a {
    padding: 10px 16px;
    font-size: 13px;
    border-radius: 8px;
    margin: 4px 6px;
}

    .main-menu ul ul li > a:hover {
        background: #2563eb;
    }

/* =========================================================
   RIGHT SIDE (user + login)
   ========================================================= */

.menu-right {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 12px;
}

a.menu-login {
    padding: 12px 20px;
    border-radius: 10px;
    background: rgba(255,255,255,0.18);
    color: #fff;
    font-weight: 600;
    text-decoration: none;
}

    a.menu-login:hover {
        background: rgba(255,255,255,0.32);
    }

/* =========================================================
   TOGGLE BUTTON (default = hidden)
   ========================================================= */

.menu-toggle {
    display: none;
    padding: 10px 12px;
    border: none;
    border-radius: 10px;
    background: rgba(255,255,255,0.18);
    color: #fff;
    font-weight: 700;
    cursor: pointer;
}

/* =========================================================
   ✅ MOBILE – JEDINÝ MEDIA QUERY
   ========================================================= */

@media (max-width: 900px) {

    /* header layout */
    nav.main-menu-bar {
        flex-direction: row;
        flex-wrap: wrap;
        align-items: center;
        gap: 8px;
        padding: 6px 8px;
    }

    /* toggle */
    .menu-toggle {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        order: 1;
        margin: 0;
        padding: 8px 10px;
    }

    /* right side (user + logout) */
    .menu-right {
        order: 2;
        margin-left: auto;
        display: flex;
        align-items: center;
        gap: 8px;
        flex-wrap: nowrap;
        min-width: 0;
    }

    /* username */
    .menu-username {
        font-size: 12px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 45vw;
    }

    /* login button */
    a.menu-login {
        padding: 8px 10px;
        font-size: 12px;
        white-space: nowrap;
    }

    /* menu block */
    .main-menu {
        order: 3;
        width: 100%;
    }

        /* hidden menu */
        .main-menu > ul {
            display: none;
            flex-direction: column;
            padding: 8px;
        }

        /* open menu */
        .main-menu.open > ul {
            display: flex;
        }

        /* submenu mobile */
        .main-menu ul ul {
            display: none;
            position: static;
            box-shadow: none;
            margin-left: 12px;
            opacity: 1;
            transform: none;
            visibility: visible;
        }

        .main-menu li.open > ul {
            display: block;
        }
}