.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    background-color: var(--white);
    box-shadow: var(--shadow);
    z-index: 1000;
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.header-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    gap: 0.75rem;
}

.logo-icon {
    background: var(--primary);
    color: var(--white);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    font-size: 1.25rem;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.5px;
}

.logo-text span {
    color: var(--primary);
}

.nav-menu {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    align-items: center;
    gap: 2.5rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    font-size: 1rem;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--primary);
}

.cta-button {
    text-decoration: none;
    background-color: var(--primary);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(var(--primary), 0.2);
}

.cta-button:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

.mobile-toggle-btn {
    display: none;
}

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

    .mobile-toggle-btn {
        display: block;
        cursor: pointer;
        background: none;
        border: none;
        font-size: 1.5rem;
        color: var(--text);
    }

    .nav-menu {
        display: block;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease-in-out;
        box-shadow: var(--shadow);
    }

    .nav-menu.active {
        max-height: 450px;
        padding: 1.5rem 0;
    }

    .nav-list {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
        padding: 0;
    }

    .nav-link {
        font-size: 1.1rem;
        display: block;
        width: 100%;
        text-align: center;
    }

    .cta-button {
        width: 80%;
        text-align: center;
        margin-top: 0.5rem;
    }
}