.site-header {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    z-index: 100;
    background: color-mix(in srgb, var(--background) 92%, transparent);
    backdrop-filter: blur(14px);
}

.site-header-inner {
    display: flex;
    align-items: center;
    min-height: 78px;
    border-bottom: 1px solid var(--edge);
    gap: 30px;
}

.brand {
    display: inline-flex;
    align-items: center;
    color: var(--text);
    font-size: 1rem;
    font-weight: 740;
    letter-spacing: -0.035em;
    text-decoration: none;
    gap: 10px;
}

.brand picture,
.brand img {
    width: 32px;
    height: 32px;
}

.brand img {
    border-radius: var(--radius-small);
}

.site-navigation {
    display: flex;
    align-items: center;
    margin-left: auto;
    gap: 28px;
}

.site-navigation-link {
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 560;
    text-decoration: none;
    transition: color var(--transition);
}

.site-navigation-link:hover,
.site-navigation-link:focus-visible {
    color: var(--text);
}

.menu-button {
    display: none;
    width: 40px;
    height: 40px;
    margin-left: auto;
    border: 1px solid var(--control-edge);
    border-radius: var(--radius-small);
    background: transparent;
    cursor: pointer;
}

.menu-button span {
    display: block;
    width: 17px;
    height: 1px;
    margin: 5px auto;
    background: currentColor;
    transition: transform var(--transition);
}

.menu-button[aria-expanded="true"] span:first-child {
    transform: translateY(3px) rotate(45deg);
}

.menu-button[aria-expanded="true"] span:last-child {
    transform: translateY(-3px) rotate(-45deg);
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 10px 22px;
    border: 1px solid transparent;
    border-radius: var(--radius-small);
    font-size: 0.88rem;
    font-weight: 680;
    text-align: center;
    text-decoration: none;
    transition: background-color var(--transition), border-color var(--transition), color var(--transition);
}

.button:focus-visible,
a:focus-visible,
summary:focus-visible,
button:focus-visible {
    outline: 2px solid var(--text);
    outline-offset: 2px;
}

.button-small {
    min-height: 40px;
    padding: 7px 17px;
    font-size: 0.8rem;
}

.button-large {
    min-height: 56px;
    padding: 14px 26px;
}

.button-primary {
    background: var(--primary);
    color: var(--on-primary);
}

.button-primary:hover {
    background: var(--primary-hover);
}

.button-secondary {
    border-color: var(--edge);
    background: var(--surface-raised);
    color: var(--text);
}

.button-secondary:hover {
    border-color: var(--control-edge);
    background: var(--control-hover);
}

.button-light {
    background: #ffffff;
    color: #242428;
}

.icon {
    display: inline-block;
    width: 1em;
    height: 1em;
    flex: 0 0 auto;
    fill: currentColor;
}

.button .icon {
    margin-left: 9px;
}

.site-footer {
    padding: 76px 0 30px;
    background: #18181b;
    color: #ededf0;
}

.site-footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 54px;
}

.site-footer .brand {
    color: #ffffff;
}

.site-footer-brand p {
    max-width: 290px;
    margin: 18px 0 0;
    color: #aaaab4;
    font-size: 0.86rem;
}

.site-footer nav {
    display: grid;
    align-content: start;
    gap: 10px;
}

.site-footer-heading {
    margin-bottom: 6px;
    color: #ededf0;
    font-size: 0.7rem;
    font-weight: 720;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.site-footer nav a {
    color: #aaaab4;
    font-size: 0.82rem;
    text-decoration: none;
}

.site-footer nav a:hover {
    color: #ffffff;
}

.site-footer-bottom {
    display: flex;
    margin-top: 62px;
    padding-top: 24px;
    border-top: 1px solid #303036;
    color: #9696a1;
    font-size: 0.72rem;
}

@media (max-width: 900px) {
    .menu-button {
        display: block;
    }

    .site-navigation {
        position: absolute;
        top: 100%;
        right: 0;
        left: 0;
        display: none;
        align-items: stretch;
        height: calc(100vh - 78px);
        height: calc(100dvh - 78px);
        padding: 24px;
        background: var(--background);
        flex-direction: column;
        gap: 2px;
        overflow-y: auto;
        overscroll-behavior: contain;
    }

    .site-navigation.is-open {
        display: flex;
    }

    .site-navigation-link {
        padding: 14px 3px;
        border-bottom: 1px solid var(--edge);
        color: var(--text);
        font-size: 1.08rem;
    }

    .site-navigation-action {
        margin-top: 18px;
    }

    .site-footer-grid {
        grid-template-columns: 2fr 1fr 1fr;
    }

    .site-footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 640px) {
    .site-header-inner {
        min-height: 70px;
    }

    .site-navigation {
        height: calc(100vh - 70px);
        height: calc(100dvh - 70px);
    }

    .site-footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px 22px;
    }

    .site-footer-grid nav:last-child {
        grid-column: 1 / -1;
    }

    .site-footer-bottom {
        align-items: flex-start;
        flex-direction: column;
        gap: 7px;
    }
}