.app-header {
    display: flex;
    align-items: center;
    height: 4rem;
    border-bottom: var(--border-size) solid var(--color-border);
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(4px);
    position: sticky;
    top: 0;
    z-index: 1;
}

.header-wrap {
    width: 100%;
    display: flex;
    justify-content: space-between;
}

.brand-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.brand-logo {
    width: 1.5rem;
    height: 1.5rem;
}

.brand-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
}

.header-actions {
    display: flex;
    gap: var(--spacing-xs);
}