/* Header Styles */
.site-header {
    background-color: #fff;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.site-branding {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.site-logo {
    max-height: 60px;
    width: auto;
}

/* Navigation Styles */
.main-navigation {
    margin-left: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 0.5rem;
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    color: #333;
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    padding: 0.75rem 1.25rem;
    display: block;
    transition: all 0.2s ease;
    border-radius: 6px;
}

.nav-menu > li > a:hover,
.nav-menu .current-menu-item > a {
    color: var(--primary);
    background-color: rgba(var(--primary-rgb), 0.08);
}

/* Submenu Styles - Novo design moderno */
.nav-menu .sub-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    background-color: #fff;
    min-width: 200px;
    padding: 0.5rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    border-radius: 8px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    background-clip: padding-box;
}

.nav-menu .sub-menu li {
    margin: 2px 0;
}

.nav-menu .sub-menu a {
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
    border-radius: 4px;
}

.nav-menu .sub-menu a:hover {
    color: var(--primary);
    background-color: rgba(var(--primary-rgb), 0.08);
}

.nav-menu li:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #333;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 4px;
}

.menu-toggle:hover {
    background-color: rgba(var(--primary-rgb), 0.08);
}

/* Mobile Menu Styles */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .main-navigation {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        max-width: 300px;
        height: 100vh;
        background-color: #fff;
        padding: 2rem 1rem;
        transition: all 0.3s ease;
        overflow-y: auto;
        border-left: 1px solid rgba(0, 0, 0, 0.08);
    }

    .main-navigation.active {
        right: 0;
    }

    .nav-menu {
        flex-direction: column;
        gap: 0.25rem;
    }

    .nav-menu .sub-menu {
        position: static;
        transform: none;
        border: none;
        padding-left: 1rem;
        min-width: auto;
        opacity: 1;
        visibility: visible;
        display: none;
        background-color: rgba(var(--primary-rgb), 0.03);
        margin: 0.25rem 0;
    }

    .nav-menu li.menu-item-has-children.active > .sub-menu {
        display: block;
    }

    .nav-menu .menu-item-has-children > a {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .nav-menu .menu-item-has-children > a::after {
        content: "\f107";
        font-family: "Font Awesome 5 Free";
        font-weight: 900;
        margin-left: 5px;
        font-size: 0.8em;
        transition: transform 0.2s ease;
    }

    .nav-menu .menu-item-has-children.active > a::after {
        transform: rotate(180deg);
    }
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(2px);
    z-index: 99;
}

.mobile-menu-overlay.active {
    display: block;
}

body.menu-open {
    overflow: hidden;
}

.nav-menu .menu-item-has-children > a::after {
    content: "\f107";
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    margin-left: 5px;
    font-size: 0.8em;
    transition: transform 0.2s ease;
}

.nav-menu .menu-item-has-children:hover > a::after {
    transform: rotate(180deg);
}