#header-placeholder {
    position: sticky;
    top: 0;
    z-index: 1000;
}

.site-header {
    background-color: var(--white);
    font-family: var(--font-heading);
    border-bottom: 1px solid rgba(0,0,0,0.05); /* Optional subtle border */
}

.header-container {
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 90px;
    padding: 0 20px;
}

.logo a {
    display: block;
}

.logo img {
    height: 50px;
    width: auto;
    object-fit: contain;
}

.main-nav {
    display: flex;
    align-items: center;
}

.nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-item {
    position: relative;
    padding: 35px 0; 
}

.nav-link {
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 500;
    font-size: 18px;
    letter-spacing: 0.3px;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
}

.nav-link:hover {
    color:#21ECBE;
}


.nav-link {
    position: relative;
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 500;
    font-size: 18px;
    letter-spacing: 0.3px;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
}

/* UNDERLINE */
.nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0px;
    width: 0;
    height: 2px;
    background: #21ECBE;
    border-radius: 10px;
    transition: width 0.3s ease;
}

/* HOVER EFFECT */
.nav-link:hover {
    color:#2D2955;
}

.nav-link:hover::after {
    width: 100%;
}

/* ACTIVE MENU */
.nav-link.active {
    color:#2D2955;
}

.nav-link.active::after {
    width: 100%;
}


.dropdown-arrow {
    font-size: 30px;
    margin-left: 6px;
    color: var(--primary-color);
    transition: transform 0.3s ease;
    display: inline-block;
}

.mega-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(15px);
    width: 650px;

    background-color: var(--white);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border-radius: 4px;

    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;

    padding: 20px 30px;

    /* ✅ SCROLL FIX */
    max-height: 75vh;       /* responsive height */
    overflow-y: auto;       /* scroll inside menu */
}

.nav-item.has-dropdown:hover .mega-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav-item.has-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.mega-menu-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.mega-menu-column {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.mega-menu-column li a {
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 15px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: color 0.3s ease;
}

.mega-menu-column li a:hover {
    color: var(--secondary-color);
}

.menu-item-left {
    display: flex;
    align-items: center;
}

.menu-icon {
    width: 32px;
    height: 32px;
    margin-right: 15px;
    object-fit: contain;
}

.menu-caret {
    font-size: 28px;
    color: #6b7280;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-join {
    background-color: var(--button-color);
    color: var(--primary-color);
    text-decoration: none;
    padding: 9px 30px;
    border-radius: 8px;
    font-weight: 600;
    /*font-size: 1.25em;*/
    letter-spacing: 0.5px;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.btn-join:hover {
    background-color: var(--secondary-color);
    color: var(--white);
}

.btn-icon {
    background-color: var(--secondary-color);
    color: #ffffff;
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.btn-icon:hover {
    background-color: var(--secondary-color);
}

.btn-icon svg {
    color: white;
    transition: color 0.3s ease;
}

.btn-icon:hover svg {
    color: var(--button-color);
}

.mega-menu-title {
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 600;
    font-size: 15px;
    color: var(--primary-color);
    transition: color 0.3s ease;
}

.mega-menu-title:hover {
    color: var(--secondary-color);
}

.mega-submenu {
    list-style: none;
    margin: 15px 0 0 47px; /* Align with text (icon 32px + 15px gap) */
    padding: 0;
    display: none;
    flex-direction: column;
    gap: 12px;
}

.mega-submenu.open {
    display: flex;
}

.mega-submenu li a {
    font-size: 14px;
    font-weight: 500;
    color: var(--primary-color);
    text-transform: none;
    justify-content: flex-start;
    transition: color 0.3s ease;
}

.mega-submenu li a:hover {
    color: var(--secondary-color);
}

.mobile-only {
    display: none;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.menu-toggle .bar {
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.menu-toggle.active .bar:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.menu-toggle.active .bar:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active .bar:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

/* RESPONSIVE  */

@media (max-width: 991px) {
    .header-container {
        height: 70px;
    }

    .menu-toggle {
        display: flex;
        margin-left: auto;
    }

    .header-actions {
        display: none; 
    }

    .mobile-only {
        display: block; 
        width: 100%;
        margin-top: 25px;
        border-bottom: none !important;
    }

    .mobile-actions {
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .mobile-actions .btn-join {
        flex: 1;
        text-align: center;
        padding: 12px;
        font-size: 1.1em;
    }

    .mobile-actions .btn-icon {
        flex-shrink: 0;
        width: 50px;
        height: 50px;
    }

    .main-nav {
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--white);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease-out;
        box-shadow: 0 10px 20px rgba(0,0,0,0.05);
        z-index: 999;
        display: block;
    }

    .main-nav.active {
        max-height: 85vh;
        overflow-y: auto;
    }

    .nav-list {
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        padding: 20px;
    }

    .nav-item {
        width: 100%;
        padding: 0;
        border-bottom: 1px solid rgba(0,0,0,0.05);
    }

    .nav-link {
        padding: 15px 0;
        justify-content: space-between;
        width: 100%;
    }

    .mega-menu {
        position: static;
        transform: none;
        width: 100%;
        opacity: 1;
        visibility: visible;
        display: none;
        padding: 10px 0 20px 20px;
        box-shadow: none;
    }
    
    .nav-item.has-dropdown.active .mega-menu {
        display: block;
    }

    .nav-item.has-dropdown:hover .mega-menu {
        opacity: 1;
        visibility: visible;
        transform: none;
    }

    .mega-menu-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .mega-menu-column {
        gap: 15px;
    }

    .mega-submenu {
        margin: 10px 0 0 20px;
    }

    .nav-item.has-dropdown:hover .dropdown-arrow {
        transform: none; 
    }

    .nav-item.has-dropdown.active .dropdown-arrow {
        transform: rotate(180deg);
    }

    .btn-join {
        padding: 7px 15px;
        font-size: 1em;
    }

    .btn-icon {
        width: 38px;
        height: 38px;
    }
}