body {
    font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    margin: 24px;
}

a {
    color: #0969da;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.top {
    display: flex;
    gap: 12px;
    align-items: baseline;
    flex-wrap: wrap;
}

.muted {
    color: #57606a;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

figure {
    margin: 0;
    border: 1px solid #d0d7de;
    border-radius: 10px;
    padding: 12px;
    background: #fff;
}

figcaption {
    font-size: 13px;
    color: #24292f;
    margin-bottom: 8px;
    word-break: break-word;
}

img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    border: 1px solid #d0d7de;
}

.list {
    columns: 3;
    column-gap: 18px;
}

@media (max-width: 900px) {
    .list {
        columns: 2;
    }
}

@media (max-width: 600px) {
    .list {
        columns: 1;
    }
}

.modal {
    display: none;
}

.modal.open {
    display: block;
}

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.65);
}

.modal-content {
    position: fixed;
    inset: 5vh 5vw;
    background: #f6f8fa;
    border-radius: 12px;
    padding: 16px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
}

#modal-img {
    display: block;
    max-width: 100%;
    max-height: 90vh;
    width: auto;
    height: auto;
    object-fit: contain;
    margin: 12px auto 0 auto;
}

.modal-caption {
    font-size: 14px;
    color: #24292f;
    word-break: break-word;
}

.modal-close {
    position: absolute;
    top: 10px;
    right: 12px;
    border: 0;
    background: transparent;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    color: #24292f;
}