/* ==========================================================================
   Galerie Mueller - Header Widget Styles
   ========================================================================== */

/* --- Header Outer Wrapper --- */
.gm-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    transition: background-color 500ms ease, box-shadow 500ms ease, backdrop-filter 500ms ease;
    background-color: transparent;
}

.gm-header.is-scrolled {
    background-color: rgba(250, 250, 250, 0.95);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    box-shadow: 0 1px 0 0 #E0DCD7;
}

/* --- Nav Container --- */
.gm-header__nav {
    margin-left: auto;
    margin-right: auto;
    display: flex;
    height: 80px;
    max-width: 1280px;
    align-items: center;
    justify-content: space-between;
    padding-left: 24px;
    padding-right: 24px;
}

@media (min-width: 768px) {
    .gm-header__nav {
        justify-content: center;
    }
}

/* --- Desktop Navigation Lists --- */
.gm-header__nav-left,
.gm-header__nav-right {
    display: none;
    align-items: center;
    gap: 32px;
    list-style: none;
    margin: 0;
    padding: 0;
}

@media (min-width: 768px) {
    .gm-header__nav-left,
    .gm-header__nav-right {
        display: flex;
    }
}

/* --- Navigation Links --- */
.gm-header__link {
    position: relative;
    font-family: 'Inter', ui-sans-serif, system-ui, sans-serif;
    font-size: 13px;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    text-decoration: none;
    transition: color 300ms ease;
    color: #FFFFFF;
}

.gm-header.is-scrolled .gm-header__link {
    color: #1A1A1A;
}

/* --- Link Hover Underline --- */
.gm-header__link-underline {
    position: absolute;
    bottom: -4px;
    left: 50%;
    height: 1px;
    width: 0;
    transform: translateX(-50%);
    background-color: #8C7A5B;
    transition: width 300ms ease;
}

.gm-header__link:hover .gm-header__link-underline {
    width: 100%;
}

/* --- Logo --- */
.gm-header__logo {
    font-family: 'Inter', ui-sans-serif, system-ui, sans-serif;
    font-size: 14px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    text-decoration: none;
    transition: color 300ms ease;
    color: #FFFFFF;
}

.gm-header.is-scrolled .gm-header__logo {
    color: #1A1A1A;
}

@media (min-width: 768px) {
    .gm-header__logo {
        margin-left: 48px;
        margin-right: 48px;
    }
}

.gm-header__logo img {
    max-height: 100%;
    width: auto;
}

/* --- Hamburger Button (Mobile) --- */
.gm-header__hamburger {
    position: relative;
    z-index: 50;
    display: flex;
    height: 40px;
    width: 40px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

@media (min-width: 768px) {
    .gm-header__hamburger {
        display: none;
    }
}

.gm-header__hamburger-line {
    display: block;
    height: 1px;
    width: 20px;
    transition: transform 300ms ease, background-color 300ms ease;
    background-color: #FFFFFF;
}

.gm-header.is-scrolled .gm-header__hamburger-line {
    background-color: #1A1A1A;
}

.gm-header__hamburger.is-open .gm-header__hamburger-line--top {
    transform: translateY(3.5px) rotate(45deg);
    background-color: #1A1A1A;
}

.gm-header__hamburger.is-open .gm-header__hamburger-line--bottom {
    transform: translateY(-3.5px) rotate(-45deg);
    background-color: #1A1A1A;
}

/* --- Mobile Menu Overlay --- */
.gm-header__mobile-overlay {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 40;
    background-color: #FAFAFA;
    transition: opacity 300ms ease;
    opacity: 0;
    pointer-events: none;
}

@media (min-width: 768px) {
    .gm-header__mobile-overlay {
        display: none;
    }
}

.gm-header__mobile-overlay.is-open {
    opacity: 1;
    pointer-events: auto;
}

/* --- Mobile Menu Links --- */
.gm-header__mobile-links {
    display: flex;
    height: 100%;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.gm-header__mobile-link {
    position: relative;
    font-family: 'Inter', ui-sans-serif, system-ui, sans-serif;
    font-size: 14px;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    text-decoration: none;
    color: #1A1A1A;
}

.gm-header__mobile-link .gm-header__link-underline {
    position: absolute;
    bottom: -4px;
    left: 50%;
    height: 1px;
    width: 0;
    transform: translateX(-50%);
    background-color: #8C7A5B;
    transition: width 300ms ease;
}

.gm-header__mobile-link:hover .gm-header__link-underline {
    width: 100%;
}

/* --- Body Scroll Lock --- */
body.gm-menu-open {
    overflow: hidden;
}

/* --- Focus Styles --- */
.gm-header__link:focus-visible,
.gm-header__logo:focus-visible,
.gm-header__mobile-link:focus-visible,
.gm-header__hamburger:focus-visible {
    outline: 2px solid #8C7A5B;
    outline-offset: 4px;
    border-radius: 2px;
}