/* Site header, identical on every page and always pinned to the top.
   Legal pages: sticky, translucent paper background.
   Home page (--overlay): fixed over the hero, transparent with white text until
   the page scrolls (header-scroll.js adds .is-scrolled). */
.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(247, 245, 243, .86);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
    transition: background-color .3s, border-color .3s;
}

.site-header--overlay {
    position: fixed;
    left: 0;
    right: 0;
}

.site-header__inner {
    padding: 14px 24px;
    display: flex;
    align-items: center;
    gap: 24px;
    transition: padding .3s;
}

.site-header__brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--ink);
    text-decoration: none;
    --logo-scale: .375;
}

.site-header__brand:hover {
    color: var(--ink);
}

.site-header .wordmark {
    font-size: 26px;
    letter-spacing: -1px;
    transition: color .3s;
}

.site-header .wordmark span {
    transition: color .3s;
}

.site-header__download {
    margin-left: auto;
    height: 42px;
    padding: 0 18px;
    border-radius: var(--radius);
    background: linear-gradient(180deg, #FF6A52, #F04A33);
    color: var(--white);
    display: flex;
    align-items: center;
    font: 700 14px/1 var(--font-sans);
    text-decoration: none;
    transition: transform .2s;
}

.site-header__download:hover {
    color: var(--white);
    transform: translateY(-2px);
}

/* Home page, top of the page: transparent over the hero mesh, as in the design. */
.site-header--overlay:not(.is-scrolled) {
    background-color: transparent;
    border-bottom-color: transparent;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
}

.site-header--overlay:not(.is-scrolled) .site-header__inner {
    padding-top: 22px;
    padding-bottom: 22px;
}

.site-header--overlay:not(.is-scrolled) .wordmark,
.site-header--overlay:not(.is-scrolled) .wordmark span {
    color: var(--white);
}

.site-header--overlay:not(.is-scrolled) .site-header__download {
    height: 44px;
    background: var(--white);
    color: var(--ink);
}