.site-header {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;

    width: 100%;

    border-bottom: 1px solid transparent;

    background: rgba(255, 255, 255, 0.82);

    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);

    transition:
        background-color 200ms ease,
        border-color 200ms ease,
        box-shadow 200ms ease;
}

.site-header__brand {
    display: flex;
    align-items: center;
    padding: 10px 0;
}

.navbar-logo {
    height: 35px;
    width: auto;
    display: block;
}

.site-header.is-scrolled {
    border-bottom-color: var(--hd-border);

    background: rgba(255, 255, 255, 0.96);

    box-shadow:
        0 10px 32px rgba(15, 23, 42, 0.05);
}

.site-header__content {
    min-height: 82px;
    display: flex;
    align-items: center;
    gap: 34px;
}

.site-brand {
    display: inline-flex;
    align-items: center;
    gap: 11px;

    flex-shrink: 0;
}

.site-brand__symbol {
    width: 43px;
    height: 43px;

    display: grid;
    place-items: center;

    border-radius: 13px;

    background: var(--hd-gradient);
    color: var(--hd-white);

    box-shadow:
        0 10px 24px rgba(37, 99, 235, 0.2);

    font-size: 14px;
    font-weight: 800;
    letter-spacing: -0.04em;
}

.site-brand__name {
    color: var(--hd-navy);

    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.045em;
}

.site-brand__name span {
    color: var(--hd-blue);
}

.site-navigation {
    margin-left: 155px;

    display: flex;
    align-items: center;
    gap: 28px;
}

.site-navigation a {
    position: relative;

    color: #334155;

    font-size: 13px;
    font-weight: 700;

    transition: color 200ms ease;
}

.site-navigation a::after {
    content: "";

    position: absolute;
    right: 0;
    bottom: -8px;
    left: 0;

    height: 2px;

    border-radius: 999px;

    background: var(--hd-blue);

    transform: scaleX(0);

    transition: transform 200ms ease;
}

.site-navigation a:hover {
    color: var(--hd-blue);
}

.site-navigation a:hover::after {
    transform: scaleX(1);
}

.site-header__actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 20px;
}

.site-login {
    color: var(--hd-navy);

    font-size: 13px;
    font-weight: 800;

    transition: color 200ms ease;
}

.site-login:hover {
    color: var(--hd-blue);
}

.site-menu-button {
    display: none;

    width: 44px;
    height: 44px;

    padding: 0;

    border: 1px solid var(--hd-border);
    border-radius: 12px;

    background: var(--hd-white);

    cursor: pointer;
}

.site-menu-button span {
    display: block;

    width: 18px;
    height: 2px;

    margin: 4px auto;

    border-radius: 999px;

    background: var(--hd-navy);

    transition:
        transform 200ms ease,
        opacity 200ms ease;
}

.site-menu-button.is-active span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.site-menu-button.is-active span:nth-child(2) {
    opacity: 0;
}

.site-menu-button.is-active span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

@media (max-width: 920px) {

    .site-navigation,
    .site-header__actions {
        display: none;
    }

    .site-menu-button {
        margin-left: auto;
        display: block;
    }

    .site-navigation.is-open {
        position: absolute;
        top: calc(100% + 1px);
        right: 0;
        left: 0;

        padding: 26px 24px 34px;

        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 0;

        border-bottom: 1px solid var(--hd-border);

        background: rgba(255, 255, 255, 0.98);

        box-shadow:
            0 22px 45px rgba(15, 23, 42, 0.09);
    }

    .site-navigation.is-open a {
        padding: 14px 0;

        border-bottom: 1px solid var(--hd-border);

        font-size: 15px;
    }

    .site-navigation.is-open a:last-child {
        border-bottom: 0;
    }
}

@media (max-width: 680px) {
    .site-header__content {
        min-height: 68px;
    }

    .site-brand__symbol {
        width: 39px;
        height: 39px;
    }

    .site-brand__name {
        font-size: 18px;
    }
}



/* ==================================================
   FOOTER
================================================== */

.site-footer {
    padding: 78px 0 30px;

    background:
        radial-gradient(circle at 85% 10%,
            rgba(37, 99, 235, 0.11),
            transparent 28rem),
        #080e1a;

    color: var(--hd-white);
}

.site-footer__main {
    display: grid;
    grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.2fr);
    gap: 90px;

    padding-bottom: 62px;
}

.site-footer__brand {
    max-width: 380px;
}

.site-brand--footer {
    color: var(--hd-white);
}

.site-footer__brand p {
    margin: 25px 0 0;

    color: #94a3b8;

    font-size: 14px;
    line-height: 1.75;
}

.site-footer__positioning {
    display: inline-flex;

    margin-top: 24px;
    padding: 7px 11px;

    border: 1px solid rgba(96, 165, 250, 0.18);
    border-radius: var(--hd-radius-pill);

    background: rgba(37, 99, 235, 0.12);
    color: #bfdbfe;

    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.site-footer__navigation {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 45px;
}

.site-footer__column {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.site-footer__column strong {
    margin-bottom: 20px;

    color: var(--hd-white);

    font-size: 12px;
    letter-spacing: 0.04em;
}

.site-footer__column a {
    margin-top: 11px;

    color: #94a3b8;

    font-size: 12px;

    transition: color var(--hd-transition);
}

.site-footer__column a:hover {
    color: var(--hd-white);
}

.site-footer__bottom {
    padding-top: 26px;

    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;

    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.site-footer__bottom>span,
.site-footer__bottom div span,
.site-footer__bottom div a {
    color: #64748b;

    font-size: 11px;
}

.site-footer__bottom div {
    display: flex;
    align-items: center;
    gap: 22px;
}

.site-footer__bottom a {
    transition: color var(--hd-transition);
}

.site-footer__bottom a:hover {
    color: var(--hd-white);
}

@media (max-width: 850px) {
    .site-footer__main {
        grid-template-columns: 1fr;
        gap: 55px;
    }

    .site-footer__navigation {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 560px) {
    .site-footer {
        padding-top: 60px;
    }

    .site-footer__navigation {
        grid-template-columns: 1fr;
        gap: 35px;
    }

    .site-footer__bottom {
        align-items: flex-start;
        flex-direction: column;
    }

    .site-footer__bottom div {
        align-items: flex-start;
        flex-direction: column;
        gap: 8px;
    }
}