.site-shell-header {
    display: block;
    position: relative;
    z-index: var(--site-menu-layer, 120000);
    isolation: isolate;
    overflow: visible;
    width: calc(100vw - 4rem);
    max-width: none;
    margin-top: 1rem;
    margin-left: calc(50% - 50vw + 2rem);
    margin-right: 0;
    padding: 0.85rem 1rem;
    border-radius: 14px;
    border: 1px solid var(--theme-border-strong, var(--theme-border));
    background:
        linear-gradient(
            135deg,
            var(--site-menu-shell-bg-from, var(--theme-surface)),
            var(--site-menu-shell-bg-to, var(--theme-surface-alt, var(--theme-surface)))
        ),
        radial-gradient(circle at 10% 10%, var(--theme-focus-ring), transparent 55%);
    box-shadow: 0 10px 24px var(--theme-overlay-soft, rgba(0, 0, 0, 0.14));
    backdrop-filter: blur(var(--site-menu-shell-blur, 18px)) saturate(140%);
    -webkit-backdrop-filter: blur(var(--site-menu-shell-blur, 18px)) saturate(140%);
}

.site-shell-topline {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.site-shell-brand {
    display: inline-flex;
    flex-direction: column;
    gap: 0.28rem;
    min-width: 0;
    color: var(--theme-text);
    text-decoration: none;
}

.site-shell-logo-wrap {
    position: relative;
    display: block;
    width: clamp(150px, 19vw, 230px);
    aspect-ratio: 13 / 4;
    height: auto;
    border-radius: 12px;
    overflow: hidden;
    isolation: isolate;
    filter: drop-shadow(0 4px 12px var(--theme-overlay-soft, rgba(0, 0, 0, 0.2)));
    mask-image: radial-gradient(125% 105% at center, #000 67%, rgba(0, 0, 0, 0.86) 82%, transparent 100%);
    -webkit-mask-image: radial-gradient(125% 105% at center, #000 67%, rgba(0, 0, 0, 0.86) 82%, transparent 100%);
}

.site-shell-logo {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 50%;
    transform: scale(1.00);
}

.site-shell-title {
    font-size: 1.02rem;
    font-weight: 800;
    line-height: 1.2;
}

.site-shell-status-wrap {
    display: flex;
    align-items: center;
    gap: 0.7rem;
}

.site-shell-status-stack {
    display: inline-flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.24rem;
}

.site-shell-status {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 110px;
    padding: 0.3rem 0.62rem;
    border-radius: 999px;
    border: 1px solid var(--theme-border);
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.site-shell-status.is-online {
    color: var(--theme-on-success, #fff);
    background: var(--theme-success);
    border-color: var(--theme-success);
}

.site-shell-status.is-guest {
    color: var(--theme-warning-text);
    background: var(--theme-warning-bg);
    border-color: var(--theme-warning-border);
}

.site-shell-status-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: transform 0.15s ease, filter 0.2s ease, box-shadow 0.2s ease;
}

.site-shell-status-link:hover,
.site-shell-status-link:focus-visible {
    transform: translateY(-1px);
    filter: brightness(1.04);
    box-shadow: 0 0 0 2px var(--theme-focus-ring);
}

.site-shell-user-name {
    display: inline-block;
    font-size: 0.78rem;
    font-style: italic;
    font-weight: 400;
    line-height: 1;
    color: var(--theme-text);
    opacity: 0.9;
}

.site-shell-user-description {
    display: inline-block;
    font-size: 0.76rem;
    line-height: 1.05;
    color: var(--theme-text);
    opacity: 0.96;
}

.site-shell-user-description strong {
    font-weight: 800;
}

.site-shell-user-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    align-self: flex-end;
    width: clamp(28px, 2.2vw, 34px);
    height: clamp(28px, 2.2vw, 34px);
    border-radius: 999px;
    overflow: hidden;
    border: 1px solid var(--theme-border-strong, var(--theme-border));
    background: var(--theme-surface-alt);
    box-shadow:
        0 0 0 1px var(--theme-focus-ring),
        0 0 12px var(--theme-focus-glow, rgba(90, 160, 255, 0.35)),
        0 4px 10px var(--theme-overlay-soft, rgba(0, 0, 0, 0.24));
}

.site-shell-user-avatar-link {
    display: inline-flex;
    align-self: flex-end;
    border-radius: 999px;
    text-decoration: none;
    transition: transform 0.15s ease, filter 0.2s ease;
}

.site-shell-user-avatar-link:hover,
.site-shell-user-avatar-link:focus-visible {
    transform: translateY(-1px) scale(1.03);
    filter: brightness(1.04);
}

.site-shell-user-avatar-link:focus-visible {
    outline: none;
}

.site-shell-user-avatar-link:focus-visible .site-shell-user-avatar {
    box-shadow:
        0 0 0 2px var(--theme-focus-ring),
        0 0 12px var(--theme-focus-glow, rgba(90, 160, 255, 0.35)),
        0 4px 10px var(--theme-overlay-soft, rgba(0, 0, 0, 0.24));
}

.site-shell-user-avatar-image {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.site-shell-toggle {
    display: none;
    border: 1px solid var(--theme-border);
    background: var(--theme-surface-alt);
    color: var(--theme-text);
    border-radius: 10px;
    padding: 0.45rem 0.82rem;
    font-weight: 800;
    line-height: 1;
    cursor: pointer;
}

.site-shell-nav {
    margin-top: 0.85rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.62rem;
    position: relative;
    z-index: 2;
}

.site-nav-root-link {
    border: 1px solid var(--theme-border);
    border-radius: 10px;
    padding: 0.46rem 0.78rem;
    background: var(--theme-surface-muted);
    color: var(--theme-text);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 800;
    line-height: 1.2;
    transition: transform 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.site-nav-root-link:hover,
.site-nav-group.is-open .site-nav-root-link,
.site-nav-group:focus-within > .site-nav-root-link {
    transform: translateY(-1px);
    border-color: var(--theme-accent);
    background: var(--theme-surface-alt);
    color: var(--theme-text);
}

.site-nav-trigger {
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
}

.site-nav-trigger::after {
    content: 'v';
    font-size: 0.67rem;
    color: var(--theme-muted);
}

.site-nav-group {
    position: relative;
}

.site-nav-panel {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    z-index: 5;
    min-width: 330px;
    max-width: min(86vw, 430px);
    display: grid;
    gap: 0.34rem;
    padding: 0.65rem;
    border-radius: 12px;
    border: 1px solid var(--theme-border-strong, var(--theme-border));
    background: linear-gradient(
        170deg,
        var(--site-menu-panel-bg-from, var(--theme-surface)),
        var(--site-menu-panel-bg-to, var(--theme-surface-alt, var(--theme-surface)))
    );
    box-shadow: 0 12px 28px var(--theme-overlay-soft, rgba(0, 0, 0, 0.16));
    backdrop-filter: blur(var(--site-menu-panel-blur, 28px)) saturate(145%);
    -webkit-backdrop-filter: blur(var(--site-menu-panel-blur, 28px)) saturate(145%);
    opacity: 0;
    transform: translateY(8px) scale(0.985);
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.site-nav-panel-rankings {
    min-width: 420px;
    max-width: min(94vw, 620px);
}

.site-nav-panel-rankings .site-nav-link {
    align-items: flex-start;
}

.site-nav-panel-rankings .site-nav-badge {
    flex-shrink: 0;
    margin-top: 0.08rem;
}

.site-nav-group:hover .site-nav-panel,
.site-nav-group:focus-within .site-nav-panel,
.site-nav-group.is-hover-open .site-nav-panel,
.site-nav-group.is-open .site-nav-panel {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.site-nav-link {
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.7rem;
    width: 100%;
    border: 1px solid var(--site-menu-link-border, var(--theme-border));
    border-radius: 9px;
    padding: 0.43rem 0.6rem;
    background: var(--site-menu-link-bg, var(--theme-surface));
    color: var(--theme-text);
    text-decoration: none;
    font-size: 0.86rem;
    font-weight: 700;
    line-height: 1.3;
    transition: border-color 0.18s ease, background-color 0.18s ease, transform 0.18s ease;
}

.site-nav-link:hover {
    border-color: var(--theme-accent);
    background: var(--site-menu-link-hover-bg, var(--theme-surface-alt));
    transform: translateX(2px);
}

.site-nav-link.is-danger {
    color: var(--theme-danger);
}

.site-nav-link.is-danger:hover {
    border-color: var(--theme-danger);
}

.site-nav-link.is-disabled {
    opacity: 0.46;
    color: var(--theme-muted);
    cursor: not-allowed;
}

.site-nav-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    border: 1px solid var(--theme-border);
    padding: 0.08rem 0.4rem;
    font-size: 0.62rem;
    font-weight: 800;
    letter-spacing: 0.05em;
}

.site-nav-divider {
    height: 1px;
    margin: 0.25rem 0;
    background: var(--theme-border);
    opacity: 0.55;
}

.site-nav-section-title {
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--theme-muted);
    padding: 0.24rem 0.24rem 0.15rem;
}

.site-shell-pin-toggle {
    position: absolute;
    bottom: 0.6rem;
    right: 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.4rem;
    height: 2.4rem;
    padding: 0;
    border: 1px solid var(--theme-border);
    border-radius: 10px;
    background: var(--theme-surface-alt);
    color: var(--theme-text);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0;
    z-index: 10;
}

.site-shell-pin-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    line-height: 1;
}

.site-shell-pin-toggle:hover {
    transform: scale(1.08) rotate(-12deg);
    border-color: var(--theme-accent);
    background: var(--theme-surface);
}

.site-shell-pin-toggle:active {
    transform: scale(0.96) rotate(-12deg);
}

.site-shell-header[data-pinned="true"] .site-shell-pin-toggle {
    transform: rotate(25deg);
}

.site-shell-header[data-pinned="true"] .site-shell-pin-toggle:hover {
    transform: rotate(25deg) scale(1.08);
}

.site-shell-header[data-pinned="true"] .site-shell-pin-toggle:active {
    transform: rotate(25deg) scale(0.96);
}

/* Pinned state: fixed at top of viewport */
.site-shell-header.is-pinned {
    position: fixed;
    top: 1rem;
    left: 2rem;
    right: 2rem;
    width: calc(100% - 4rem);
    margin: 0;
    z-index: var(--site-menu-layer, 120000);
}

/* Adjust body padding when header is pinned to prevent content overlap */
body.site-header-pinned {
    padding-top: 7.5rem;
}

@media (max-width: 980px) {
    .site-shell-header {
        width: calc(100vw - 1.6rem);
        margin-top: 0.8rem;
        margin-left: calc(50% - 50vw + 0.8rem);
        margin-right: 0;
        padding: 0.7rem 0.75rem;
    }

    .site-shell-toggle {
        display: inline-flex;
    }

    .site-shell-logo-wrap {
        width: clamp(122px, 46vw, 172px);
        aspect-ratio: 13 / 4;
        height: auto;
        border-radius: 10px;
    }

    .site-shell-title {
        font-size: 0.9rem;
    }

    .site-shell-nav {
        margin-top: 0.7rem;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        pointer-events: none;
        transition: max-height 0.26s ease, opacity 0.2s ease;
    }

    .site-shell-header.is-open .site-shell-nav {
        max-height: 85vh;
        opacity: 1;
        pointer-events: auto;
    }

    .site-nav-root-link,
    .site-nav-trigger {
        width: 100%;
        justify-content: space-between;
    }

    .site-nav-group {
        width: 100%;
    }

    .site-nav-panel {
        position: static;
        margin-top: 0.38rem;
        max-width: 100%;
        min-width: 0;
        opacity: 1;
        transform: none;
        pointer-events: auto;
        display: none;
    }

    .site-nav-panel-rankings {
        min-width: 0;
        max-width: 100%;
    }

    .site-nav-group.is-open .site-nav-panel {
        display: grid;
    }

    .site-nav-group:hover .site-nav-panel,
    .site-nav-group:focus-within .site-nav-panel {
        display: none;
    }

    .site-nav-group.is-open:hover .site-nav-panel,
    .site-nav-group.is-open:focus-within .site-nav-panel {
        display: grid;
    }

    .site-shell-status {
        display: none;
    }

    .site-shell-user-name {
        display: none;
    }

    .site-shell-user-description {
        display: none;
    }

    .site-shell-user-avatar {
        display: inline-flex;
        width: clamp(28px, 2.2vw, 34px);
        height: clamp(28px, 2.2vw, 34px);
        align-self: flex-end;
        flex-shrink: 0;
    }
}

@media (max-width: 480px) {
    .site-shell-header {
        width: calc(100vw - 1rem);
        margin-left: calc(50% - 50vw + 0.5rem);
        padding: 0.58rem 0.62rem;
    }

    .site-shell-topline {
        gap: 0.55rem;
        align-items: flex-start;
    }

    .site-shell-logo-wrap {
        width: clamp(108px, 42vw, 150px);
        aspect-ratio: 13 / 4;
        height: auto;
    }

    .site-shell-title {
        font-size: 0.78rem;
        line-height: 1.16;
    }

    .site-shell-toggle {
        padding: 0.4rem 0.65rem;
        font-size: 0.8rem;
    }

    .site-nav-root-link,
    .site-nav-trigger {
        font-size: 0.82rem;
        padding: 0.42rem 0.62rem;
    }

    .site-nav-link {
        font-size: 0.8rem;
        padding: 0.4rem 0.52rem;
    }
}