.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    padding: 0.75rem 0;
    transition: all 0.2s ease;
}
.site-header--floating {
    transform: translateY(-100%);
    opacity: 0;
    background-color: transparent;
}
.site-header--floating.is-visible {
    transform: translateY(0);
    opacity: 1;
    background-color: var(--color-bg-primary);
    border-bottom: 3px solid var(--color-text-heading);
}
.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.site-branding {
    flex-shrink: 0;
}
.site-branding .site-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: var(--font-weight-black);
    letter-spacing: -0.02em;
    text-transform: uppercase;
    color: var(--color-text-heading);
    text-decoration: none;
    transition: color 0.15s ease;
}
.site-branding .site-title:hover {
    color: var(--color-primary);
}
.site-branding .custom-logo {
    max-height: 40px;
    width: auto;
}
.main-navigation {
    display: none;
}
.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    list-style: none;
    margin: 0;
    padding: 0;
}
.nav-menu li a {
    display: block;
    padding: 0.5rem 0.75rem;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color 0.15s ease;
}
.nav-menu li a:hover,
.nav-menu li a.is-active {
    color: var(--color-text-heading);
}
.nav-menu__cta {
    margin-left: var(--space-xs);
}
.nav-btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-bg-surface) !important;
    background-color: var(--color-text-heading);
    border: 2px solid var(--color-text-heading);
    text-decoration: none;
    transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.nav-btn:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-text-heading) !important;
}
.menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
    width: 44px;
    height: 44px;
    padding: 0;
    background: none;
    border: 2px solid var(--color-text-heading);
    cursor: pointer;
    z-index: 10;
}
.menu-toggle__bar {
    display: block;
    width: 20px;
    height: 3px;
    background-color: var(--color-text-heading);
    transition: all 0.2s ease;
}
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(2) {
    opacity: 0;
}
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}
.mobile-menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    z-index: 998;
}
.mobile-menu-overlay.is-open {
    opacity: 1;
    visibility: visible;
}
@media (max-width: 1023px) {
    .main-navigation {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        left: auto;
        width: 85%;
        max-width: 320px;
        display: flex !important;
        justify-content: center;
        align-items: center;
        z-index: 999;
        background-color: var(--color-bg-primary);
        border-left: 4px solid var(--color-text-heading);
        transform: translateX(100%);
        visibility: hidden;
        transition: transform 0.2s ease, visibility 0.2s ease;
    }
    .main-navigation.is-open {
        transform: translateX(0);
        visibility: visible;
    }
    .main-navigation .nav-menu {
        flex-direction: column;
        gap: var(--space-sm);
        padding: var(--space-xl) var(--space-lg);
    }
    .main-navigation .nav-menu li a {
        font-size: 1.1rem;
        padding: var(--space-sm) var(--space-lg);
    }
    .main-navigation .nav-menu__cta {
        margin-left: 0;
        margin-top: var(--space-md);
    }
    .main-navigation .nav-btn {
        font-size: 0.85rem;
        padding: 0.75rem 1.5rem;
    }
}
@media (min-width: 1024px) {
    .menu-toggle {
        display: none;
    }
    .main-navigation {
        display: block;
        position: fixed;
        top: 0;
        right: 0;
        z-index: calc(var(--z-sticky) + 1);
        padding: 0.75rem var(--container-padding);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-100%);
        transition: all 0.2s ease;
    }
    .main-navigation.is-header-visible {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
}
.site-header--simple {
    background-color: var(--color-bg-primary);
    border-bottom: 3px solid var(--color-text-heading);
}
.site-header--simple .nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}
.site-header--simple .nav-btn .material-symbols-outlined {
    font-size: 1rem;
}