/* Header Styles */
.main-header {
    background-color: var(--bg-light);
    box-shadow: var(--shadow-sm);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all var(--transition-normal);
}

.main-header.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
}

.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    height: 70px;
}

.logo {
    flex-shrink: 0;
}

.logo img {
    height: 40px;
    transition: transform var(--transition-normal);
}

.logo img:hover {
    transform: scale(1.05);
}

.main-nav {
    flex-grow: 1;
    margin: 0 var(--spacing-xl);
}

.main-nav ul {
    display: flex;
    list-style: none;
    justify-content: center;
    gap: var(--spacing-lg);
}

.main-nav ul li a {
    color: var(--text-color);
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 4px;
    position: relative;
    transition: all var(--transition-normal);
}

.main-nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width var(--transition-normal);
}

.main-nav ul li a:hover::after,
.main-nav ul li a.active::after {
    width: 100%;
}

.main-nav ul li a:hover,
.main-nav ul li a.active {
    color: var(--primary-color);
}

.user-actions {
    display: flex;
    gap: var(--spacing-md);
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
    transition: transform var(--transition-normal);
    padding: var(--spacing-sm);
    border-radius: 4px;
    background: transparent;
    border: none;
}

.mobile-menu-btn:hover {
    background-color: rgba(255, 107, 0, 0.1);
}

/* Mobile Menu */
@media (max-width: 768px) {
    .main-nav {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--bg-light);
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
        z-index: 999;
    }

    .main-nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .main-nav ul {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
    }

    .main-nav ul li {
        width: 100%;
        text-align: center;
    }

    .main-nav ul li a {
        display: block;
        padding: var(--spacing-md);
        border-radius: 4px;
    }

    .main-nav ul li a:hover {
        background-color: rgba(255, 107, 0, 0.1);
    }

    .mobile-menu-btn {
        display: block;
    }

    .user-actions {
        display: none;
    }

    .main-header .container {
        padding: var(--spacing-sm) var(--spacing-md);
    }
}