#header {
    display: none;
}

.tcn-topbar {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 34px;
    padding: 0.5rem var(--tcn-space-md);
    background: var(--tcn-color-graphite);
    color: var(--tcn-color-on-dark);
    font-size: 0.75rem;
    line-height: 1.35;
    text-align: center;
}

.tcn-topbar__inner {
    display: flex;
    align-items: center;
    justify-content: center;
    width: min(100% - 2rem, var(--tcn-size-container));
}

.tcn-topbar__message {
    margin: 0;
    color: inherit;
    line-height: inherit;
}

.tcn-topbar a {
    color: var(--tcn-color-primary);
    font-weight: 650;
}

.tcn-premium-header {
    position: sticky;
    top: 0;
    z-index: 50;
    border-bottom: var(--tcn-border-width) solid var(--tcn-color-border);
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
}

.tcn-premium-header__inner {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: var(--tcn-space-xl);
    align-items: center;
    width: min(100% - 3rem, var(--tcn-size-container));
    min-height: 104px;
    margin-inline: auto;
}

.tcn-premium-header__brand {
    display: flex;
    align-items: center;
    min-width: 15rem;
}

.tcn-premium-header__logo-link {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
}

.tcn-premium-header__logo-link picture {
    display: inline-flex;
    align-items: center;
    line-height: 0;
}

.tcn-premium-header__logo {
    display: block;
    width: clamp(220px, 19vw, 260px);
    max-width: 100%;
    height: auto;
    max-height: 90px;
}

.tcn-premium-nav {
    justify-self: center;
    min-width: 0;
}

.tcn-premium-nav ul,
.tcn-premium-actions ul {
    display: flex;
    align-items: center;
    padding: 0;
    margin: 0;
    list-style: none;
}

.tcn-premium-nav ul {
    gap: clamp(var(--tcn-space-md), 2vw, var(--tcn-space-xl));
}

.tcn-premium-actions ul {
    gap: var(--tcn-space-sm);
}

.tcn-premium-nav a,
.tcn-premium-actions a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    color: var(--tcn-color-graphite);
    text-decoration: none;
    transition: color var(--tcn-transition-fast), background-color var(--tcn-transition-fast);
}

.tcn-premium-nav a {
    font-size: 0.875rem;
    font-weight: 600;
}

.tcn-premium-actions a {
    padding-inline: 0.65rem;
    border-radius: var(--tcn-radius-pill);
    color: var(--tcn-color-muted);
    font-size: 0.75rem;
    font-weight: 650;
    letter-spacing: 0.03em;
}

.tcn-premium-nav a:hover,
.tcn-premium-nav a:focus-visible {
    color: var(--tcn-color-primary-hover);
}

.tcn-premium-actions a:hover,
.tcn-premium-actions a:focus-visible {
    background: var(--tcn-color-primary-soft);
    color: var(--tcn-color-primary-hover);
}

@media (max-width: 63.9375rem) {
    .tcn-premium-header__inner {
        grid-template-columns: minmax(0, 1fr) auto;
        gap: var(--tcn-space-sm);
        width: min(100% - 1.5rem, var(--tcn-size-container));
        min-height: 76px;
        padding-top: var(--tcn-space-xs);
    }

    .tcn-premium-header__brand {
        min-width: 0;
    }

    .tcn-premium-header__logo {
        width: 52px;
        height: 52px;
        max-width: 52px;
        max-height: 52px;
    }

    .tcn-premium-actions a {
        min-width: 40px;
        padding-inline: 0.45rem;
        font-size: 0.6875rem;
    }

    .tcn-premium-nav {
        grid-column: 1 / -1;
        justify-self: stretch;
        overflow-x: auto;
        scrollbar-width: none;
    }

    .tcn-premium-nav::-webkit-scrollbar {
        display: none;
    }

    .tcn-premium-nav ul {
        width: max-content;
        min-width: 100%;
        gap: var(--tcn-space-lg);
        padding-bottom: var(--tcn-space-xs);
    }
}

@media (max-width: 35rem) {
    .tcn-topbar {
        padding-inline: var(--tcn-space-sm);
        font-size: 0.6875rem;
    }

    .tcn-premium-actions li:first-child {
        display: none;
    }

    .tcn-premium-nav ul {
        gap: var(--tcn-space-md);
    }

    .tcn-premium-nav a {
        font-size: 0.8125rem;
    }
}

@media (max-width: 22rem) {
    .tcn-premium-header__logo {
        width: 46px;
        height: 46px;
        max-width: 46px;
        max-height: 46px;
    }
}