1. Go to Edit code -> header.liquid and paste below code at the top:
{% if template.name == 'index' %}
<style>
.header-wrapper {
position: absolute;
width: 100%;
background: transparent;
color: white;
}
.header-wrapper .list-menu span,
details[open]>.header__menu-item,
.header-wrapper summary svg,
.header-wrapper a svg,
.header-wrapper h1.header__heading span.h2,
.header-wrapper details>span,
.header-wrapper .disclosure__button>span,
.header-wrapper .disclosure__button svg {
color: white !important;
}
.header-localization .disclosure .localization-form__select:hover {
text-decoration-color: white;
}
.section-header {
margin-bottom: 0;
}
.header-wrapper--border-bottom {
border-bottom: .1rem solid rgba(255, 255, 255, .08);
}
.overflow-hidden-desktop .header-wrapper,
.overflow-hidden-tablet .header-wrapper {
position: initial;
width: initial;
background: initial;
color: initial;
background: var(--gradient-background);
}
.header-wrapper summary.header__menu-item+ul span,
.header-wrapper summary.header__menu-item+ul svg,
.overflow-hidden-desktop .header-wrapper .list-menu span,
.overflow-hidden-desktop details[open]>.header__menu-item,
.overflow-hidden-desktop .header-wrapper summary svg,
.overflow-hidden-desktop .header-wrapper a svg,
.overflow-hidden-desktop .header-wrapper h1.header__heading span.h2,
.overflow-hidden-desktop .header-wrapper details>span,
.overflow-hidden-desktop .header-wrapper .disclosure__button>span,
.overflow-hidden-desktop .header-wrapper .disclosure__button svg,
.overflow-hidden-tablet .header-wrapper .list-menu span,
.overflow-hidden-tablet details[open]>.header__menu-item,
.overflow-hidden-tablet .header-wrapper summary svg,
.overflow-hidden-tablet .header-wrapper a svg,
.overflow-hidden-tablet .header-wrapper h1.header__heading span.h2,
.overflow-hidden-tablet .header-wrapper details>span,
.overflow-hidden-tablet .header-wrapper .disclosure__button>span,
.overflow-hidden-tablet .header-wrapper .disclosure__button svg {
color: rgba(var(--color-foreground), .75) !important
}
</style>
{% endif %}