.nav-buttons {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: center;
    gap: 0.8rem;
    padding: 1rem;
    background: rgba(9, 9, 11, 0.8);
    backdrop-filter: blur(12px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-btn {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-main);
    padding: 0.7rem 1.2rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    font-weight: 700;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.1);
}

.nav-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
}

.nav-btn i {
    font-size: 1.1rem;
}

.nav-btn:hover i {
    transform: scale(1.1);
}

@media (max-width: 768px) {
    .nav-buttons {
        gap: 0.5rem;
        margin: 1rem 0;
    }
    
    .nav-btn {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }
    
    .nav-btn span {
        display: none;
    }
}