.site-header {
    position: relative;
    background-color: var(--color-bg-base);
    border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    max-width: 1100px;
    margin-inline: auto;
    padding-block: 16px;
    padding-left: max(20px, env(safe-area-inset-left));
    padding-right: max(20px, env(safe-area-inset-right));
}

/* Branding */

.site-branding {
    display: flex;
    align-items: center;
    min-width: 0;
}

.site-branding .custom-logo-link {
    display: inline-block;
}

.site-branding .custom-logo {
    display: block;
    width: auto;
    height: auto;
    max-width: 170px;
}

@media (min-width: 768px) {
    .site-branding .custom-logo {
        max-width: 220px;
    }
}

.site-branding .site-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-text-main);
    letter-spacing: 0.02em;
}

/* Hamburger button */

.menu-toggle {
    position: relative;
    z-index: 101;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    width: 44px;
    height: 44px;
    padding: 0;
    background: none;
    border: none;
    cursor: pointer;
    flex-shrink: 0;
}

.menu-toggle__label {
    font-size: 9px;
    line-height: 1;
    letter-spacing: 0.05em;
    color: var(--color-text-sub);
}

.menu-toggle:focus-visible {
    outline: 2px solid var(--color-text-main);
    outline-offset: 2px;
}

.menu-toggle__box {
    position: relative;
    display: inline-block;
    width: 22px;
    height: 14px;
}

.menu-toggle__line {
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-text-main);
    border-radius: 1px;
    transition: transform 0.3s ease, opacity 0.3s ease, top 0.3s ease;
}

.menu-toggle__line:nth-child(1) {
    top: 0;
}

.menu-toggle__line:nth-child(2) {
    top: 50%;
    transform: translateY(-50%);
}

.menu-toggle__line:nth-child(3) {
    top: 100%;
    transform: translateY(-100%);
}

.menu-toggle.is-active .menu-toggle__line:nth-child(1) {
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
}

.menu-toggle.is-active .menu-toggle__line:nth-child(2) {
    opacity: 0;
}

.menu-toggle.is-active .menu-toggle__line:nth-child(3) {
    top: 50%;
    transform: translateY(-50%) rotate(-45deg);
}

/* Overlay menu */

.primary-menu-overlay {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-bg-base);
    padding: 96px 24px;
    overflow-y: auto;
}

.primary-menu-overlay[hidden] {
    display: none;
}

.primary-menu-overlay__nav {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
}

.primary-menu,
.secondary-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.primary-menu {
    font-size: 20px;
}

.secondary-menu {
    gap: 16px;
    font-size: 14px;
}

.primary-menu a,
.secondary-menu a {
    display: inline-block;
    padding: 4px 2px;
    color: var(--color-text-main);
}

.secondary-menu a {
    color: var(--color-text-sub);
}

.primary-menu a:hover,
.primary-menu a:focus-visible,
.secondary-menu a:hover,
.secondary-menu a:focus-visible {
    color: var(--color-pink);
}

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