.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(245,245,239,.97);
    border-bottom: 1px solid var(--line);
}

.header-inner {
    min-height: 84px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    line-height: 1.25;
    flex-shrink: 0;
}

.brand-mark {
    width: 37px;
    height: 37px;
    display: block;
    flex-shrink: 0;
}

.brand-name {
    font-size: 15px;
    font-weight: 650;
    letter-spacing: -.02em;
}

.brand-meta {
    display: block;
    font-size: 10px;
    color: var(--muted);
    letter-spacing: .09em;
    text-transform: uppercase;
    margin-top: 5px;
}

.site-menu {
    list-style: none;
    display: flex;
    gap: 8px;
    align-items: center;
    padding: 0;
    margin: 0;
}

.site-menu a {
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 44px;
    padding: 10px 15px;
    border-radius: 7px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 500;
}

.site-menu a:hover {
    background: var(--mint);
    color: var(--ink);
}

.site-menu a[aria-current=page] {
    color: var(--green-dark);
    background: var(--mint);
}

.site-menu .nav-contact {
    border: 1px solid var(--line);
    color: var(--ink);
    margin-left: 20px;
}

.nav-toggle {
    display: none;
    border: 1px solid var(--line);
    border-radius: 8px;
    min-height: 44px;
    padding: 8px 14px;
    color: var(--ink);
    background: var(--paper);
    font-size: 13px;
}

.reading-progress {
    position: absolute;
    bottom: -1px;
    left: 0;
    height: 2px;
    background: var(--green);
    width: 100%;
    transform: scaleX(0);
    transform-origin: left;
    pointer-events: none;
}