.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: rgba(10, 15, 26, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border-light);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 1;
    min-width: 0;
}

.brand-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--color-accent), #059669);
    color: var(--color-bg-primary);
    font-weight: 700;
    font-size: 1.1rem;
    border-radius: var(--radius-sm);
}

.brand-text {
    font-weight: 600;
    font-size: 1.2rem;
    color: var(--color-text-primary);
}

.nav-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    flex: 1;
    min-width: 0;
}

.user-menu {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 1.5rem;
    flex: 1;
    min-width: 0;
}

.user-greeting {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.user-greeting span {
    color: var(--color-accent);
    font-weight: 500;
}

.nav-tabs {
    display: flex;
    gap: 0.25rem;
    background: rgba(255, 255, 255, 0.04);
    padding: 0.25rem;
    border-radius: var(--radius-md);
    position: relative;
}

.nav-tab-indicator {
    position: absolute;
    bottom: 2px;
    height: 2px;
    background: var(--color-accent);
    border-radius: 1px;
    transition: left 300ms cubic-bezier(0.4, 0, 0.2, 1), width 300ms cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.4);
}

.nav-tab {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.25rem;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.nav-tab:hover {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.06);
}

.nav-tab.active {
    color: var(--color-accent);
    background: rgba(16, 185, 129, 0.12);
}

.nav-tab svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

@media (max-width: 900px) {
    .nav-tabs {
        display: flex;
    }

    .nav-tab span {
        display: none;
    }
}

@media (max-width: 600px) {
    .navbar {
        padding: 1rem;
    }

    .nav-actions {
        gap: 0.5rem;
    }

    .nav-tabs {
        gap: 0.125rem;
        padding: 0.2rem;
    }

    .nav-tab {
        padding: 0.4rem 0.75rem;
        font-size: 0.8rem;
    }
}