.global-header-hub {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--background-light);
    border-bottom: 5px solid var(--brand-green-light);
    z-index: 1000;
    height: 75px;
    display: flex;
    align-items: center;
    border-bottom-left-radius: 20%;
    border-bottom-right-radius: 20%;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.global-header-hub.header-hidden {
    transform: translateY(-90px); 
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.brand-logo-img {
    width: 230px;
    height: auto;
    display: block;
}

.main-navigation-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap; 
}

.navigation-links-list {
    display: flex;
    gap: 36px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.header-navigation-anchor {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.12rem;
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 700;
    display: block;
    position: relative;
    padding: 0.2em 0;
    transition: color 0.2s ease;
}

.header-navigation-anchor::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 0.1em;
  background-color: var(--brand-green-light);
  opacity: 0;
  transition: opacity 300ms, transform 300ms;
}

.header-navigation-anchor:hover::after,
.header-navigation-anchor:focus::after {
  opacity: 1;
  transform: translate3d(0, 0.2em, 0);
  transform: scale(1);
}

.header-navigation-anchor::after {
  opacity: 1;
  transform: scale(0);
  transform-origin: center;
}

.header-navigation-anchor:hover {
    color: var(--brand-green-light);
}

.header-action-block {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    width: 230px;
}

#menu-button {
    cursor: pointer;
    width: 50px;
    height: 50px;
    display: none;
    transition: transform 0.3s ease;
    stroke: var(--brand-green-light);
}

#menu-button.is-open path:nth-child(1) {
    transform: translateX(0px) translateY(0px) rotate(45deg);
}

#menu-button.is-open path:nth-child(2) {
    opacity: 0;
}

#menu-button.is-open path:nth-child(3) {
    transform: translateX(2px) translateY(2px) rotate(-45deg);
}

#menu-button path {
    transition: transform 0.3s ease, opacity 0.3s ease;
    transform-origin: center;
}



@media (max-width: 1245px) and (min-width: 769px) {
    .brand-logo-img {
        width: 180px;
    }

    .navigation-links-list {
        gap: 24px;
    }

    .header-navigation-anchor {
        font-size: 0.7rem;
        letter-spacing: 0.08rem;
    }

    .header-action-block {
        width: 180px;
    }

    .header-action-block .btn-solid-primary {
        font-size: 0.7rem;
        letter-spacing: 0.1rem;
    }
}

@media (max-width: 768px) {
    .main-navigation-wrapper {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 32px;
    }

    .main-navigation-wrapper .header-action-block {
        display: flex !important;
        justify-content: center; 
        margin-top: 24px;
        width: 100%;
    }

    .main-navigation-wrapper .header-action-block {
        transition: opacity 0.3s ease;
        opacity: 0;
    }

    .main-navigation-wrapper.is-open .header-action-block {
        opacity: 1;
    }

    #menu-button {
        display: block;
        cursor: pointer;
        z-index: 1001; 
        position: relative;
    }

    header .header-container > .header-action-block {
        display: none !important;
    }

    .main-navigation-wrapper.is-open {
        opacity: 1;
        visibility: visible;
        transform: scale(1);
    }

    .navigation-links-list {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 24px; 
        width: 100%;
    }

    .header-navigation-anchor {
        font-size: 1.5rem;
        font-weight: 600;
        display: block;
        padding: 12px 0;
    }
}

@media (max-width: 480px) {
    .brand-logo-img {
        width: 140px;
    }
    
    #menu-button {
        width: 42px;
    }
    
    header .header-container .header-action-block {
        top: 290px;
    }
}