.upper-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    z-index: 1000;
}

.brand-logo {
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--text-main, #0f172a);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.flag-icon {
    width: 20px;
    height: 15px;
    object-fit: cover;
    border-radius: 2px;
}

@media (prefers-color-scheme: dark) {
    .upper-bar {
        background: rgba(15, 23, 42, 0.8);
        border-bottom: 1px solid rgba(51, 65, 85, 0.8);
    }
}