* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
}

.main-header {
    width: 100%;
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
}

.main-header .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 600;
    text-decoration: none;
    color: #333;
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 25px;
}

.main-nav ul li a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.main-nav ul li a:hover {
    color: #007BFF;
}

.mobile-menu-icon {
    display: none;
    background: none;
    border: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: #333;
}

@media (max-width: 768px) {
    .main-nav ul {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: #fff;
        flex-direction: column;
        text-align: center;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    }

    .main-nav ul li {
        padding: 15px 0;
        border-top: 1px solid #f0f0f0;
    }

    .main-nav.active ul {
        display: flex;
    }

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