.mtmn-construction-demo {
    margin: 1.75rem 0 2rem;
}

.mtmn-demo-shell {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.1rem 1.25rem;
}

.mtmn-demo-header {
    margin-bottom: 1rem;
}

.mtmn-demo-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
    letter-spacing: -0.01em;
}

.mtmn-demo-subtitle {
    color: var(--muted);
    font-size: 0.9rem;
}

.mtmn-demo-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
    margin-bottom: 0.9rem;
}

.mtmn-demo-button {
    border: 1px solid var(--border);
    background: var(--sidebar-bg);
    color: var(--text);
    border-radius: 6px;
    padding: 0.4rem 0.75rem;
    cursor: pointer;
    font: inherit;
    font-size: 0.88rem;
    transition: border-color 0.15s, background 0.15s;
}

.mtmn-demo-button:hover {
    border-color: var(--accent);
    background: rgba(74, 123, 111, 0.06);
}

.mtmn-demo-step {
    color: var(--muted);
    font-size: 0.88rem;
    margin-left: auto;
}

.mtmn-demo-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.9rem;
}

.mtmn-demo-chip {
    background: var(--sidebar-bg);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0.25rem 0.65rem;
    font-size: 0.85rem;
}

.mtmn-demo-board-wrap {
    overflow-x: auto;
    margin-bottom: 0.9rem;
}

.mtmn-demo-table {
    border-collapse: separate;
    border-spacing: 4px;
    margin: 0;
}

.mtmn-demo-table th,
.mtmn-demo-table td {
    min-width: 2.4rem;
    height: 2.4rem;
    text-align: center;
    vertical-align: middle;
    border-radius: 6px;
    font-size: 0.92rem;
}

.mtmn-demo-table th {
    background: var(--sidebar-bg);
    border: 1px solid var(--border);
    font-weight: 600;
    color: var(--muted);
}

.mtmn-demo-corner {
    background: transparent;
    border: none;
}

.mtmn-demo-cell {
    background: #ffffff;
    border: 1px solid var(--border);
    font-weight: 600;
    transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.mtmn-demo-cell.is-filled {
    background: #F7F7F5;
}

.mtmn-demo-cell.is-active-forward {
    background: #EDF2F0;
    border-color: #4A7B6F;
    transform: translateY(-1px);
}

.mtmn-demo-cell.is-active-reverse {
    background: #F5EDE8;
    border-color: #B8785A;
    transform: translateY(-1px);
}

.mtmn-demo-cell.is-active-center {
    background: #EBF0F5;
    border-color: #6B89AD;
    transform: translateY(-1px);
}

.mtmn-demo-caption {
    margin: 0;
}

.mtmn-demo-caption strong {
    display: block;
    margin-bottom: 0.25rem;
}

@media (max-width: 800px) {
    .mtmn-demo-table th,
    .mtmn-demo-table td {
        min-width: 2rem;
        height: 2rem;
        font-size: 0.85rem;
    }

    .mtmn-demo-step {
        width: 100%;
        margin-left: 0;
    }
}