/**
 * MO Museo — Header & Navigation Styles
 *
 * Sticky header with site branding and responsive navigation.
 * Adapted from MO app-template for museo's dark theme (Tierra Patagónica).
 *
 * @package MO_Museo
 * @since   1.4.0
 */

/* ==========================================================================
   Header container
   ========================================================================== */

.mo-museo-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--mo-secondary);
    border-bottom: 3px solid var(--mo-gold);
    box-shadow: var(--mo-shadow-sm, 0 1px 3px rgba(0, 0, 0, 0.1));
}

.mo-museo-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--mo-space-6, 1.5rem);
    height: 4rem;
}


/* ==========================================================================
   Site branding
   ========================================================================== */

.mo-museo-header__brand {
    display: flex;
    align-items: center;
    gap: var(--mo-space-3, 0.75rem);
    text-decoration: none;
    color: var(--mo-white, #fff);
    font-weight: 700;
    font-size: var(--mo-text-lg, 1.125rem);
    white-space: nowrap;
    flex-shrink: 0;
}

.mo-museo-header__brand:hover {
    color: var(--mo-gold);
}

.mo-museo-header__logo {
    height: 2.5rem;
    width: auto;
    flex-shrink: 0;
}

.mo-museo-header__title {
    font-family: var(--mo-font-heading);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}


/* ==========================================================================
   Navigation
   ========================================================================== */

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

.mo-museo-nav__menu {
    display: flex;
    align-items: center;
    gap: var(--mo-space-1, 0.25rem);
    list-style: none;
    margin: 0;
    padding: 0;
}

.mo-museo-nav__link {
    display: block;
    padding: var(--mo-space-2, 0.5rem) var(--mo-space-3, 0.75rem);
    font-size: var(--mo-text-sm, 0.875rem);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border-radius: var(--mo-radius-md, 0.5rem);
    transition: color 0.2s ease, background-color 0.2s ease;
}

.mo-museo-nav__link:hover {
    color: var(--mo-gold);
    background-color: rgba(255, 255, 255, 0.08);
}

.mo-museo-nav__link[aria-current="page"] {
    color: var(--mo-gold);
    background-color: rgba(255, 255, 255, 0.1);
    font-weight: 600;
}


/* ==========================================================================
   Hamburger button
   ========================================================================== */

.mo-museo-nav__toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: var(--mo-radius-md, 0.5rem);
    color: rgba(255, 255, 255, 0.8);
    transition: background-color 0.2s ease;
}

.mo-museo-nav__toggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--mo-gold);
}

.mo-museo-nav__toggle svg {
    width: 1.5rem;
    height: 1.5rem;
}

/* Hide close icon by default */
.mo-museo-nav__toggle .mo-museo-nav__icon-close {
    display: none;
}

.mo-museo-nav__toggle[aria-expanded="true"] .mo-museo-nav__icon-open {
    display: none;
}

.mo-museo-nav__toggle[aria-expanded="true"] .mo-museo-nav__icon-close {
    display: block;
}


/* ==========================================================================
   Responsive (< 768px)
   ========================================================================== */

@media (max-width: 768px) {
    .mo-museo-header__title {
        font-size: var(--mo-text-sm, 0.875rem);
    }

    .mo-museo-nav__toggle {
        display: flex;
    }

    .mo-museo-nav__menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        gap: 0;
        padding: var(--mo-space-2, 0.5rem) var(--mo-space-4, 1rem);
        background-color: var(--mo-secondary);
        border-bottom: 3px solid var(--mo-gold);
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
    }

    .mo-museo-nav.is-open .mo-museo-nav__menu {
        display: flex;
    }

    .mo-museo-nav__link {
        width: 100%;
        padding: var(--mo-space-3, 0.75rem) var(--mo-space-4, 1rem);
        font-size: var(--mo-text-base, 1rem);
    }
}

@media (max-width: 480px) {
    .mo-museo-header__title {
        font-size: 0.75rem;
    }

    .mo-museo-header__logo {
        height: 2rem;
    }
}