/* Teaching page specifics — inherits tokens from style.css */

.back {
    font-size: 14px;
    color: var(--muted);
    border-bottom: none;
    display: inline-block;
    margin-bottom: 32px;
}
.back:hover {
    color: var(--accent);
}

.teach-group {
    margin-bottom: 56px;
}

.teach-heading {
    font-family: var(--serif);
    font-weight: 500;
    font-size: 22px;
    margin: 0 0 18px 0;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--rule);
    letter-spacing: 0.005em;
}
.teach-sub {
    color: var(--muted);
    font-size: 15px;
    font-style: italic;
    font-weight: 400;
}

.course {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 20px;
    padding: 14px 0;
    border-bottom: 1px dotted var(--rule);
}
.course:last-child {
    border-bottom: none;
}

.course-title {
    font-family: var(--serif);
    font-weight: 600;
    font-size: 18px;
    margin: 0 0 2px 0;
}

.course-meta {
    color: var(--muted);
    font-size: 14px;
    margin: 0;
}

.course-links {
    font-size: 14px;
    white-space: nowrap;
    flex-shrink: 0;
}

/* collapsible micro subsections */
.micro {
    border-bottom: 1px dotted var(--rule);
    padding: 10px 0;
}
.micro:last-child {
    border-bottom: none;
}
.micro > summary {
    cursor: pointer;
    font-family: var(--sans);
    font-weight: 500;
    font-size: 15px;
    color: var(--ink);
    padding: 8px 0;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 10px;
}
.micro > summary::-webkit-details-marker { display: none; }
.micro > summary::before {
    content: "▸";
    color: var(--muted);
    font-size: 12px;
    transition: transform 0.15s ease;
    display: inline-block;
}
.micro[open] > summary::before {
    transform: rotate(90deg);
}
.micro > summary:hover {
    color: var(--accent);
}

.micro-list {
    list-style: none;
    padding: 6px 0 8px 22px;
    margin: 0;
    columns: 2;
    column-gap: 32px;
}
.micro-list li {
    font-size: 14px;
    padding: 3px 0;
    break-inside: avoid;
}

@media (max-width: 720px) {
    .course {
        flex-direction: column;
        gap: 6px;
    }
    .micro-list {
        columns: 1;
    }
}