.lab-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.8fr) minmax(0, 1.2fr);
    gap: 1.4rem;
    align-items: flex-start;
}

@media (max-width: 900px) {
    .lab-layout {
        grid-template-columns: minmax(0, 1fr);
    }
}

.calc-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.18rem 0.7rem;
    border-radius: 999px;
    border: 1px solid rgba(148, 163, 184, 0.9);
    font-size: 0.78rem;
    margin-right: 0.25rem;
    margin-bottom: 0.25rem;
}

.calc-tag span.icon {
    font-size: 0.9rem;
}

.topic-block {
    border-radius: 0.9rem;
    border: 1px solid var(--border-soft);
    background: var(--card);
    padding: 0.8rem 0.9rem;
    margin-bottom: 0.9rem;
    box-shadow: var(--shadow-soft);
    font-size: 0.86rem;
}

.topic-title {
    font-size: 0.98rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.topic-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--text-soft);
    margin-bottom: 0.2rem;
}

.course-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.75rem;
    padding: 0.1rem 0.55rem;
    border-radius: 999px;
    border: 1px solid rgba(148, 163, 184, 0.9);
    margin-top: 0.35rem;
}

.example-panel {
    border-radius: 0.7rem;
    border: 1px dashed var(--border-soft);
    padding: 0.55rem 0.7rem;
    font-size: 0.82rem;
    margin-top: 0.5rem;
    background: rgba(148, 163, 184, 0.05);
}

.example-panel pre {
    font-size: 0.8rem;
    margin-top: 0.3rem;
}

.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.7rem;
    margin-top: 0.5rem;
}

.course-card {
    border-radius: 0.8rem;
    border: 1px solid var(--border-soft);
    background: var(--card);
    padding: 0.7rem 0.75rem;
    font-size: 0.82rem;
}

.course-card h3 {
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.course-meta {
    font-size: 0.78rem;
    color: var(--text-soft);
    margin-bottom: 0.2rem;
}

.mini-steps {
    list-style: none;
    padding-left: 0;
    margin: 0.35rem 0 0;
    font-size: 0.8rem;
}

.mini-steps li::before {
    content: "→";
    font-size: 0.75rem;
    margin-right: 0.25rem;
    color: var(--accent);
}

.side-card {
    border-radius: 0.9rem;
    border: 1px solid var(--border-soft);
    padding: 0.75rem 0.85rem;
    font-size: 0.84rem;
    background: var(--card);
    box-shadow: var(--shadow-soft);
    margin-bottom: 0.9rem;
}

.side-title {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
}

.warning-note {
    border-radius: 0.8rem;
    border: 1px solid rgba(248, 113, 113, 0.7);
    background: rgba(248, 113, 113, 0.08);
    padding: 0.6rem 0.8rem;
    font-size: 0.83rem;
    margin-top: 0.6rem;
}

.session-tag {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-soft);
    margin-bottom: 0.3rem;
    display: block;
}