/* Fix for navigation bar styling */
.main-nav {
    background-color: var(--background-color);
    border-top: 1px solid var(--secondary-color-light);
    border-bottom: 1px solid var(--secondary-color-light);
    padding: 0.5rem 0;
    margin: 1rem 0;
}

.main-nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
    padding: 0;
    margin: 0.5rem 0;
    gap: 2rem;
}

.main-nav a {
    color: var(--primary-color);
    font-weight: bold;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: all 0.3s ease;
    position: relative;
}

.main-nav a:after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--secondary-color-light);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.main-nav a:hover:after,
.main-nav a.active:after {
    transform: scaleX(1);
}

.main-nav a:hover, .main-nav a.active {
    background-color: var(--accent-color);
    color: var(--background-color);
    text-decoration: none;
}

/* Active page indicator */
.main-nav a.active {
    background-color: var(--secondary-color-light);
    color: var(--primary-color);
}

/* Responsive fixes */
@media (max-width: 768px) {
    .main-nav {
        padding: 0.25rem 0;
    }
    
    .main-nav ul {
        flex-direction: column;
        align-items: center;
        gap: 0.5rem;
    }
    
    .main-nav a {
        width: 80%;
        text-align: center;
        padding: 0.5rem 0;
    }
}