.site-header,
body > header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: color-mix(in srgb, var(--color-bg) 92%, transparent);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(16px);
}

.site-header__inner {
    width: 100%;
    max-width: none;
    min-height: 72px;
    margin-inline: 0;
    padding-inline: clamp(var(--space-3), 2vw, var(--space-6));
    display: grid;
    grid-template-columns: max-content 1fr max-content;
    align-items: center;
    gap: var(--space-4);
}

body > header > nav {
    width: min(100% - var(--space-6), var(--container-xl));
    min-height: 72px;
    margin-inline: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
}

.site-logo {
    justify-self: start;
    display: inline-flex;
    align-items: center;
    gap: 0;
    color: var(--color-text);
    font-size: clamp(1.125rem, 1.4vw, 1.35rem);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
}

.site-logo span {
    color: var(--color-accent);
}

.site-nav,
body > header > nav {
    display: flex;
    align-items: center;
    gap: clamp(var(--space-3), 1.8vw, var(--space-5));
}

.site-nav {
    justify-self: center;
    justify-content: center;
}

.site-nav a,
body > header > nav a {
    color: var(--color-text-body);
    font-size: clamp(0.875rem, 1vw, 0.975rem);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
}

.site-nav a.is-active,
.site-nav a[aria-current="page"] {
    color: var(--color-accent);
    font-weight: 600;
}

.site-nav a:hover,
body > header > nav a:hover {
    color: var(--color-accent);
}

.theme-toggle,
body > header button {
    min-height: 32px;
    padding: var(--space-1) var(--space-2);
    color: var(--color-text);
    background: color-mix(in srgb, var(--color-surface) 68%, transparent);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    opacity: 0.76;
}

.theme-toggle {
    justify-self: end;
}

.theme-toggle:hover,
body > header button:hover {
    border-color: var(--color-border-strong);
    box-shadow: var(--shadow-soft);
    opacity: 1;
}

@media (max-width: 760px) {
    .site-header__inner {
        width: 100%;
        min-height: auto;
        padding-inline: var(--space-3);
        padding-block: var(--space-4);
        grid-template-columns: 1fr max-content;
        gap: var(--space-3);
    }

    body > header > nav {
        width: min(100% - var(--space-4), var(--container-xl));
        min-height: auto;
        padding-block: var(--space-4);
        flex-wrap: wrap;
        justify-content: flex-start;
        gap: var(--space-3);
    }

    .site-nav,
    body > header > nav {
        grid-column: 1 / -1;
        justify-self: start;
        justify-content: flex-start;
        flex-wrap: wrap;
        gap: var(--space-3);
    }
}