.mbq-main {
    padding: 1.5rem 1rem 3rem;
}

[hidden] {
    display: none !important;
}

.mbq-container {
    width: min(100%, 1080px);
    margin-inline: auto;
}

.mbq-breadcrumb {
    margin: 0 0 1.25rem;
    font-size: .9rem;
}

.mbq-breadcrumb ol {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.mbq-breadcrumb li:not(:last-child)::after {
    content: "/";
    margin-inline-start: .4rem;
    opacity: .55;
}

.mbq-archive,
.mbq-question {
    padding: clamp(1rem, 3vw, 2rem);
    border: 1px solid rgba(127, 127, 127, .25);
    border-radius: 12px;
    background: var(--mbq-card-bg, #fff);
    color: inherit;
}

.mbq-archive > h1,
.mbq-question-title {
    margin-top: 0;
    line-height: 1.3;
}

.mbq-intro,
.mbq-question-prompt,
.mbq-solution {
    line-height: 1.75;
}

.mbq-summary,
.mbq-meta,
.mbq-source,
.mbq-note {
    font-size: .92rem;
    opacity: .82;
}

.mbq-taxonomy-links {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
}

.mbq-taxonomy-links a {
    padding: .2rem .55rem;
    border: 1px solid rgba(127, 127, 127, .3);
    border-radius: 999px;
    font-size: .82rem;
    text-decoration: none;
}

.mbq-group-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
    gap: 1rem;
}

.mbq-group-card {
    padding: 1rem;
    border: 1px solid rgba(127, 127, 127, .25);
    border-radius: 10px;
}

.mbq-group-card h2 {
    margin-top: 0;
    font-size: 1.1rem;
}

.mbq-group-card p {
    margin-bottom: 0;
}

.mbq-subject-section {
    margin-top: 2rem;
}

.mbq-subject-section h2 {
    padding-bottom: .4rem;
    border-bottom: 1px solid rgba(127, 127, 127, .25);
}

.mbq-subject-section h2 span {
    font-size: .9rem;
    font-weight: normal;
}

.mbq-question-list li {
    margin-block: .6rem;
    line-height: 1.55;
}

.mbq-language-switch {
    display: flex;
    gap: .5rem;
    margin-block: 1rem;
}

.mbq-language-switch button {
    padding: .45rem .8rem;
    border: 1px solid currentColor;
    border-radius: 6px;
    background: transparent;
    color: inherit;
    cursor: pointer;
}

.mbq-language-switch button[aria-pressed="true"] {
    background: #174ea6;
    border-color: #174ea6;
    color: #fff;
}

.mbq-options {
    padding-inline-start: 2.5rem;
}

.mbq-options li {
    position: relative;
    margin-block: .65rem;
    padding: .7rem .9rem;
    border: 1px solid rgba(127, 127, 127, .24);
    border-radius: 8px;
}

.mbq-option-letter {
    position: absolute;
    inset-inline-start: -2.3rem;
    top: .7rem;
    display: grid;
    width: 1.8rem;
    height: 1.8rem;
    place-items: center;
    border: 1px solid rgba(127, 127, 127, .4);
    border-radius: 50%;
    font-weight: 700;
}

.mbq-answer {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: 8px;
    background: rgba(127, 127, 127, .08);
}

.mbq-answer summary {
    font-weight: 700;
    cursor: pointer;
}

.mbq-answer-key {
    margin-top: 1rem;
}

.mbq-source {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(127, 127, 127, .25);
}

.mbq-preview-banner {
    margin-bottom: 1rem;
    padding: .8rem 1rem;
    border-left: 4px solid #dba617;
    background: #fff8dc;
    color: #3f3200;
}

.mbq-question-prompt img,
.mbq-solution img {
    max-width: 100%;
    height: auto;
}

@media (max-width: 600px) {
    .mbq-main {
        padding-inline: .65rem;
    }

    .mbq-archive,
    .mbq-question {
        padding: 1rem;
    }
}