/* ──────────────────────────────────────────────────────────────────────
   OMA CORE HEADER STYLES
   ────────────────────────────────────────────────────────────────────── */

.oma-header {
    background: #fdfdfba8;
    border-bottom: 1px solid var(--oma-earth);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 11px 20px;
    backdrop-filter: blur(5px);
}

body.oma-menu-open {
    overflow: hidden;
}

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

.oma-nav-menu {
    display: flex;
    gap: 2rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.oma-nav-image {
    height: 50px;
    width: auto;
    object-fit: contain;
}

.oma-nav-menu a {
    text-decoration: none;
    color: var(--oma-text-muted);
    font-family: var(--oma-font-sans);
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.oma-nav-menu a:hover,
.oma-nav-menu .current-menu-item a {
    color: var(--oma-dark);
}

.oma-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 24px;
    position: relative;
    justify-content: space-between;
    flex-direction: column;
    padding: 0;
    z-index: 10000;
}

.oma-burger-bar {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--oma-dark);
    transform-origin: left center;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), 
                opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
@media (max-width: 767px) {
    
    .oma-menu-toggle {
        display: flex;
    }

    .oma-menu-toggle[aria-expanded="true"] .oma-burger-bar:nth-child(1) {
        transform: rotate(45deg) translate(2px, -1px);
    }

    .oma-menu-toggle[aria-expanded="true"] .oma-burger-bar:nth-child(2) {
        opacity: 0;
        transform: scaleX(0);
    }

    .oma-menu-toggle[aria-expanded="true"] .oma-burger-bar:nth-child(3) {
        transform: rotate(-45deg) translate(2px, 1px);
    }

    .oma-navigation-wrapper {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        height: calc(100vh - 100%); 
        background: var(--oma-bg);
        padding: 3rem 2rem;
        box-sizing: border-box;
        overflow-y: auto;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
    }

    .oma-navigation-wrapper.is-active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .oma-nav-menu {
        flex-direction: column;
        gap: 2rem;
        align-items: flex-start;
    }
    
    .oma-nav-menu a {
        font-size: 1.4rem;
        width: 100%;
        display: block;
    }

    .oma-nav-menu > li {
        width: 100%;
    }
}

.oma-nav-menu li {
    list-style: none;
}

.oma-nav-menu li {
    list-style: none;
}

ul.oma-nav-menu > li > ul > li > ul li {
    padding-left: 10px;
}

@media (min-width: 768px) {
    .oma-nav-menu .menu-item-has-children {
        position: relative;
        display: flex;
        align-items: center;
        flex-direction: column;
    }

    .oma-submenu-toggle {
        display: none;
    }

    .oma-nav-menu .sub-menu {
        position: absolute;
        top: 100%;
        left: 0;
        background: #fdfdfb;
        border: 1px solid var(--oma-earth);
        border-radius: 4px;
        min-width: 220px;
        padding: 0.5rem 0;
        margin: 0;
        box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
        opacity: 0;
        visibility: hidden;
        transform: translateY(10px);
        transition: all 0.3s ease;
    }

    .oma-nav-menu > .menu-item-has-children > .sub-menu {
        display: none;
    }
    
    .oma-nav-menu > .menu-item-has-children:hover > .sub-menu {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
        display: block;
    }

    .oma-nav-menu .sub-menu li {
        width: 100%;
    }

    .oma-nav-menu .sub-menu a {
        display: block;
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
        width: 100%;
        box-sizing: border-box;
    }

    .oma-nav-menu .sub-menu a:hover {
        background-color: rgba(0, 0, 0, 0.03);
    }
}

@media (max-width: 767px) {
    .oma-nav-menu .menu-item-has-children {
        position: relative;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: space-between;
    }

    .oma-nav-menu .menu-item-has-children > a {
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: 100%;
        padding-right: 0.5rem;
    }

    .oma-submenu-toggle {
        background: none;
        border: none;
        color: var(--oma-dark);
        font-size: 1.5rem;
        padding: 0 1rem;
        cursor: pointer;
        transition: transform 0.3s ease;
    }

    .oma-submenu-toggle.is-open {
        transform: rotate(180deg);
    }

    .oma-nav-menu .sub-menu {
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        padding-left: 1.5rem; 
        margin: 0;
        
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), 
                    opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .oma-nav-menu .sub-menu.is-open {
        opacity: 1;
    }

    .oma-nav-menu .sub-menu a {
        font-size: 1.1rem;
        padding: 0.5rem 0;
        color: var(--oma-text-muted);
    }

    .oma-submenu-arrow {
        font-size: 1.2rem;
        transition: transform 0.3s ease;
    }

    .oma-nav-menu .menu-item-has-children > a.is-active .oma-submenu-arrow {
        transform: rotate(180deg);
        color: var(--oma-dark);
    }

    @keyframes fadeInDown {
        from { opacity: 0; transform: translateY(-5px); }
        to { opacity: 1; transform: translateY(0); }
    }
}

@media (min-width: 768px) {
    .oma-submenu-arrow {
        display: none; 
    }
    
    .oma-nav-menu .sub-menu {
        max-height: none !important;
    }
}

.oma-nav-menu > li > .sub-menu > li.menu-item-has-children > a {
    font-size: 0.85rem;
    font-weight: bold;
    letter-spacing: 0.05em;
    color: #515151;
    padding-top: 2rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    pointer-events: none;
}

@media (min-width: 768px) {
    .oma-nav-menu .sub-menu .sub-menu {
        position: static !important;
        box-shadow: none !important;
        border: none !important;
        margin: 0 !important;
        opacity: 1 !important;
        visibility: visible !important;
        transform: none !important;
        min-width: 100%;
        background: transparent !important;
    }

    .oma-nav-menu .sub-menu .sub-menu a {
        font-family: var(--oma-font-sans);
        font-size: 0.9rem;
        color: var(--oma-text-muted);
        text-transform: none;
        font-weight: 500;
        pointer-events: auto;
        padding: 0.4rem 1.5rem;
        border: none;
        margin: 0;
    }

    .oma-nav-menu > li > .sub-menu > li:not(.menu-item-has-children) > a {
        pointer-events: auto;
        padding: 0.75rem 1.5rem;
    }
}

@media (max-width: 767px) {
    .oma-nav-menu > li > .sub-menu > li.menu-item-has-children > a {
        font-size: 1rem;
        padding-top: 1.5rem;
        border-bottom: 2px solid var(--oma-earth);
    }

    .oma-nav-menu .sub-menu .sub-menu {
        max-height: none !important;
        opacity: 1;
        overflow: visible;
        padding-left: 0;
    }

    .oma-nav-menu .sub-menu .sub-menu a {
        font-size: 1.1rem;
        padding: 0.5rem 0;
        color: var(--oma-text-muted);
        pointer-events: auto;
    }
}

@media (min-width: 768px) {
    
    .oma-header-container {
        display: flex;
        align-items: center;
    }

    .oma-navigation-wrapper {
        flex-grow: 1; 
        display: flex;
    }

    .oma-nav-menu {
        display: flex;
        align-items: center;
        width: 100%;
        margin: 0;
        padding: 0;
        list-style: none;
    }

    .oma-nav-menu li:first-child {
        margin-left: auto;
    }

    .oma-nav-menu li:last-child {
        margin-left: auto;
    }

    .oma-menu-toggle {
        display: none;
    }
}