/* Keep the header's space stable while its visible navigation bar contracts. */
html {
    scroll-padding-top: 80px;
}

.bi-site-header {
    --bi-header-nav-height: 70px;
    position: sticky;
    top: 0;
    z-index: 1030;
    height: 70px;
    flex-shrink: 0;
    background: transparent;
    pointer-events: none;
}

.bi-site-header .navbar {
    min-height: var(--bi-header-nav-height);
    padding: 0;
    background: linear-gradient(112deg, #063e70 0%, #0a315f 45%, #43164d 100%);
    pointer-events: auto;
    transition: min-height 280ms ease, padding 280ms ease, box-shadow 280ms ease;
}

.bi-header-brand {
    position: relative;
    width: 150px;
    height: 48px;
    transition: width 280ms ease, height 280ms ease;
}

.bi-header-wordmark,
.bi-header-mark {
    position: absolute;
    top: 50%;
    left: 0;
    display: block;
    height: auto;
    transform-origin: left center;
    transition: opacity 220ms ease, transform 280ms ease;
}

.bi-header-wordmark {
    width: 150px;
    opacity: 1;
    transform: translateY(-50%) scale(1);
}

.bi-header-mark {
    width: 27px;
    opacity: 0;
    transform: translateY(-50%) scale(0.85);
}

.bi-site-header.is-compact {
    --bi-header-nav-height: 48px;
}

.bi-site-header.is-compact .navbar {
    box-shadow: 0 5px 18px rgba(7, 31, 80, 0.18);
}

.bi-site-header.is-compact .bi-header-brand {
    width: 30px;
    height: 36px;
}

.bi-site-header.is-compact .bi-header-wordmark {
    opacity: 0;
    transform: translateY(-50%) scale(0.92);
}

.bi-site-header.is-compact .bi-header-mark {
    opacity: 1;
    transform: translateY(-50%) scale(1);
}

.bi-site-header .bi-primary-nav .nav-link {
    transition: padding 280ms ease, color 180ms ease;
}

.bi-site-header .bi-signup-button {
    transition: padding 280ms ease, background-color 180ms ease;
}

@media (min-width: 1200px) {
    .bi-site-header.is-compact .bi-primary-nav .nav-link {
        padding-block: 11px;
    }

    .bi-site-header.is-compact .bi-signup-button {
        padding-block: 8px;
    }
}

@media (max-width: 1199.98px) {
    .bi-site-header .navbar {
        padding-block: 10px;
    }

    .bi-site-header.is-compact .navbar {
        padding-block: 4px;
    }

    .bi-site-header .navbar-collapse {
        position: absolute;
        top: 100%;
        right: 0;
        left: 0;
        max-height: calc(100vh - var(--bi-header-nav-height));
        max-height: calc(100dvh - var(--bi-header-nav-height));
        overflow-y: auto;
        padding: 16px 24px 20px;
        background: linear-gradient(112deg, #063e70 0%, #0a315f 45%, #43164d 100%);
        box-shadow: 0 8px 18px rgba(7, 31, 80, 0.18);
    }
}

@media (max-width: 767.98px) {
    .bi-site-header .navbar-collapse {
        padding-inline: 14px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .bi-site-header .navbar,
    .bi-header-brand,
    .bi-header-wordmark,
    .bi-header-mark,
    .bi-site-header .bi-primary-nav .nav-link,
    .bi-site-header .bi-signup-button {
        transition: none;
    }
}