.sysnotes-footer {
    margin-top: 7rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    background: #f7f7f8;
}

.sysnotes-footer-inner {
    padding-top: 5rem;
    padding-bottom: 2.5rem;
}

.sysnotes-footer-grid {
    display: grid;
    grid-template-columns: minmax(0, 2fr) repeat(2, minmax(160px, 1fr));
    gap: 5rem;
}

.sysnotes-footer-brand {
    display: inline-flex;
    align-items: center;

    color: #15171a;
    font-size: 2.8rem;
    font-weight: 800;
    line-height: 1;
    text-decoration: none;
}

.sysnotes-footer-brand img {
    display: block;
    width: auto;
    max-width: 220px;
    max-height: 48px;
}

.sysnotes-footer-description {
    max-width: 44rem;
    margin: 1.5rem 0 0;

    color: #5f6368;
    font-size: 1.55rem;
    line-height: 1.65;
}

.sysnotes-footer-heading {
    margin: 0 0 1.5rem;

    color: #15171a;
    font-size: 1.55rem;
    font-weight: 700;
}

.sysnotes-footer-links {
    margin: 0;
    padding: 0;
    list-style: none;
}

.sysnotes-footer-links li {
    margin: 0.9rem 0;
}

.sysnotes-footer-links a {
    color: #5f6368;
    font-size: 1.5rem;
    text-decoration: none;

    transition: color 0.15s ease;
}

.sysnotes-footer-links a:hover {
    color: #007aff;
}

.sysnotes-footer-social {
    display: flex;
    gap: 1.2rem;
    margin-top: 3rem;
}

.sysnotes-footer-social a {
    display: inline-flex;
    width: 3.8rem;
    height: 3.8rem;
    align-items: center;
    justify-content: center;

    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;

    color: #15171a;
    text-decoration: none;
}

.sysnotes-footer-social svg {
    width: 1.8rem;
    height: 1.8rem;
}

.sysnotes-footer-bottom {
    display: flex;
    justify-content: space-between;
    gap: 2rem;

    margin-top: 4rem;
    padding-top: 2rem;

    border-top: 1px solid rgba(0, 0, 0, 0.1);

    color: #777;
    font-size: 1.35rem;
}

@media (max-width: 800px) {
    .sysnotes-footer {
        margin-top: 5rem;
    }

    .sysnotes-footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
    }

    .sysnotes-footer-about {
        grid-column: 1 / -1;
    }
}

@media (max-width: 520px) {
    .sysnotes-footer-grid {
        grid-template-columns: 1fr;
    }

    .sysnotes-footer-about {
        grid-column: auto;
    }

    .sysnotes-footer-bottom {
        flex-direction: column;
        gap: 0.7rem;
    }
}

@media (prefers-color-scheme: dark) {
    .sysnotes-footer {
        border-color: rgba(255, 255, 255, 0.1);
        background: #18191b;
    }

    .sysnotes-footer-brand,
    .sysnotes-footer-heading {
        color: #fff;
    }

    .sysnotes-footer-description,
    .sysnotes-footer-links a,
    .sysnotes-footer-bottom {
        color: #aeb4bd;
    }

    .sysnotes-footer-bottom,
    .sysnotes-footer-social a {
        border-color: rgba(255, 255, 255, 0.12);
    }

    .sysnotes-footer-social a {
        color: #fff;
    }
}