/* Shared site header: one structure and treatment across every portfolio page. */
.site-header {
    width: min(1320px, calc(100% - 64px));
    height: 82px;
    margin-inline: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid #d8d7cc;
    color: #18231f;
    font-family: "Manrope", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.wordmark {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .12em;
}

.wordmark-mark {
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    flex: 0 0 auto;
    border-radius: 50%;
    background: #18231f;
    color: #f4f1e9;
    font: 18px Georgia, "Songti SC", serif;
    letter-spacing: 0;
}

.wordmark-sub {
    display: block;
    margin-top: 4px;
    color: #65716b;
    font: 9px "DM Mono", "SFMono-Regular", Consolas, monospace;
    letter-spacing: .08em;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: clamp(18px, 3vw, 42px);
    font-size: 12px;
    font-weight: 600;
}

.main-nav a { color: inherit; text-decoration: none; transition: color .2s ease; }
.main-nav a:hover { color: #d45b35; }
.main-nav .nav-contact { padding: 11px 15px; border: 1px solid currentColor; border-radius: 2px; }
.main-nav .nav-contact span { margin-left: 10px; color: #d45b35; }
.main-content { padding-top: 0 !important; }

@media (max-width: 920px) {
    .site-header { width: calc(100% - 48px); }
    .main-nav { gap: 18px; }
}

@media (max-width: 680px) {
    .site-header { width: calc(100% - 40px); height: 70px; }
    .main-nav { gap: 14px; }
    .main-nav > a:not(.nav-contact) { display: none; }
    .main-nav .nav-contact { padding: 9px 11px; }
}