/* Header Styles */
.header {
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
    transition: transform 0.3s ease;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    transition: height 0.3s ease;
}

.nav-links {
    display: flex;
    gap: 40px;
}

.nav-links a {
    color: var(--text-color);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 5px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-links a i {
    font-size: 1rem;
    transition: var(--transition);
}

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

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

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-links a:hover i {
    transform: translateY(-2px);
}

.mobile-menu {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    padding: 10px;
    z-index: 101;
    background: transparent;
    border: none;
}

.mobile-menu span {
    width: 25px;
    height: 2px;
    background-color: var(--text-color);
    transition: var(--transition);
    transform-origin: left;
}

.mobile-menu.active span:first-child {
    transform: rotate(45deg);
}

.mobile-menu.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu.active span:last-child {
    transform: rotate(-45deg);
}

@media (max-width: 768px) {
    .nav {
        height: 70px;
    }

    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--white);
        padding: 100px 40px 40px;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        gap: 30px;
        z-index: 100;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links a {
        font-size: 1.2rem;
        padding: 10px 0;
    }

    .mobile-menu {
        display: flex;
    }
}

@media (max-width: 480px) {
    .nav {
        height: 60px;
    }

    .nav-links {
        padding: 80px 30px 30px;
    }

    .nav-links a {
        font-size: 1.1rem;
    }
}