/* ---------- Article shell & typography ---------- */

    .pxa-article {
        max-width: 1100px;
        margin: 0 auto;
        line-height: 1.75;
        color: var(--text-primary);
    }

    .pxa-article [id] {
        scroll-margin-top: 95px;
    }

    .pxa-article h2 {
        font-family: var(--font-heading);
        font-size: 1.75rem;
        font-weight: 800;
        letter-spacing: -0.02em;
        margin: 3.5rem 0 1.1rem;
        padding-top: 1.1rem;
        position: relative;
    }

    .pxa-article h2::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 2.5rem;
        height: 3px;
        border-radius: 2px;
        background: linear-gradient(90deg, var(--primary), transparent);
    }

    .pxa-article h3 {
        font-family: var(--font-heading);
        font-size: 1.2rem;
        font-weight: 700;
        margin: 2rem 0 0.65rem;
        color: var(--text-primary);
    }

    .pxa-article p {
        margin-bottom: 1.1rem;
        color: var(--text-secondary);
    }

    .pxa-article p strong {
        color: var(--text-primary);
    }

    .pxa-article p a {
        color: var(--primary);
        text-decoration: none;
        font-weight: 600;
        transition: opacity 0.2s, text-decoration-color 0.2s;
    }

    .pxa-article p a:hover {
        opacity: 0.75;
        text-decoration: underline;
    }

    .pxa-lede {
        font-size: 1.12rem;
        line-height: 1.75;
        color: var(--text-primary);
    }

    /* ---------- Hub prose ----------
       Hub pages lay out their own sections (card grids, pillar heads, stat
       strips) and cannot be wrapped in .pxa-article without breaking that
       layout. Adding `pxa-prose` to a hub <section> gives the loose
       explanatory h3/p sitting directly inside it the same rhythm as an
       article, while leaving every classed element -- section titles,
       subtitles, cards, CTAs -- exactly as the hub styles them. The
       :not([class]) guard is what draws that line, and it matters:
       base.html resets `* { margin: 0 }`, so unclassed prose has no
       spacing at all until something restores it. */

    .pxa-prose > h3:not([class]) {
        font-family: var(--font-heading);
        font-size: 1.2rem;
        font-weight: 700;
        margin: 2rem 0 0.65rem;
        color: var(--text-primary);
    }

    .pxa-prose > p:not([class]) {
        margin-bottom: 1.1rem;
        line-height: 1.75;
        color: var(--text-secondary);
    }

    .pxa-prose > p:not([class]) strong {
        color: var(--text-primary);
    }

    .pxa-prose > p:not([class]) a {
        color: var(--primary);
        text-decoration: none;
        font-weight: 600;
        transition: opacity 0.2s;
    }

    .pxa-prose > p:not([class]) a:hover {
        opacity: 0.75;
        text-decoration: underline;
    }

    /* ---------- Numbered step list ---------- */

    .pxa-steps {
        list-style: none;
        counter-reset: pxa-step;
        padding: 0;
        margin: 1.5rem 0;
        display: flex;
        flex-direction: column;
        gap: 0.75rem;
    }

    .pxa-steps li {
        counter-increment: pxa-step;
        display: flex;
        gap: 1rem;
        align-items: flex-start;
        background: var(--bg-secondary);
        border: 1px solid var(--border);
        border-radius: 12px;
        padding: 0.9rem 1.1rem;
        color: var(--text-secondary);
    }

    .pxa-steps li::before {
        content: counter(pxa-step);
        font-family: var(--font-heading);
        font-weight: 800;
        font-size: 0.9rem;
        color: var(--primary);
        background: var(--bg-tertiary);
        border: 1px solid var(--border);
        border-radius: 10px;
        width: 1.9rem;
        height: 1.9rem;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
    }

    .pxa-steps li > div {
        display: flex;
        flex-direction: column;
        gap: 0.3rem;
        padding-top: 0.15rem;
    }

    .pxa-step-title {
        display: block;
        font-family: var(--font-heading);
        font-weight: 700;
        font-size: 0.95rem;
        color: var(--text-primary);
    }

    .pxa-step-desc {
        margin: 0;
        font-size: 0.85rem;
        color: var(--text-secondary);
    }

    .pxa-step-group {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        font-family: var(--font-heading);
        font-weight: 700;
        font-size: 0.95rem;
        color: var(--primary);
        margin: 1.75rem 0 0.75rem;
    }

    .pxa-step-group .pxm2-icon {
        color: var(--primary);
        flex-shrink: 0;
    }

    /* ---------- Bullet list ---------- */

    .pxa-list {
        list-style: none;
        padding: 0;
        margin: 1.5rem 0;
        display: flex;
        flex-direction: column;
        gap: 0.75rem;
    }

    .pxa-list li {
        display: flex;
        gap: 0.75rem;
        align-items: flex-start;
        background: var(--bg-secondary);
        border: 1px solid var(--border);
        border-radius: 12px;
        padding: 0.9rem 1.1rem;
        color: var(--text-secondary);
    }

    .pxa-list li::before {
        content: '';
        flex-shrink: 0;
        margin-top: 0.55rem;
        width: 0.4rem;
        height: 0.4rem;
        border-radius: 50%;
        background: var(--primary);
    }

    /* ---------- Comparison table ---------- */

    .pxa-table-wrap {
        overflow-x: auto;
        margin: 1.5rem 0;
        border: 1px solid var(--border);
        border-radius: 12px;
    }

    .pxa-table {
        width: 100%;
        border-collapse: collapse;
        font-size: 0.92rem;
        min-width: 560px;
    }

    .pxa-table th,
    .pxa-table td {
        padding: 0.8rem 1rem;
        text-align: left;
        border-bottom: 1px solid var(--border);
    }

    .pxa-table th {
        font-family: var(--font-mono);
        font-size: 0.72rem;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 0.05em;
        background: var(--bg-secondary);
        color: var(--text-primary);
        white-space: nowrap;
    }

    .pxa-table td {
        color: var(--text-secondary);
        transition: background 0.15s ease;
    }

    .pxa-table tbody tr:hover td {
        background: var(--bg-secondary);
    }

    .pxa-table td:first-child {
        color: var(--text-primary);
        font-weight: 600;
        white-space: nowrap;
    }

    .pxa-table tr:last-child td {
        border-bottom: none;
    }

    /* Without this a table link falls back to the UA default blue-on-dark,
       which is close to unreadable against --bg-secondary. */
    .pxa-table a {
        color: var(--primary);
        font-weight: 600;
        text-decoration: none;
    }

    .pxa-table a:hover {
        text-decoration: underline;
    }

    /* ---------- Quick-fact / related-link chips ---------- */

    .pxa-chips {
        display: flex;
        flex-wrap: wrap;
        gap: 0.5rem;
        margin: 1rem 0 1.5rem;
    }

    .pxa-chip {
        display: inline-flex;
        align-items: center;
        gap: 0.35rem;
        font-size: 0.78rem;
        font-weight: 600;
        background: var(--bg-tertiary);
        border: 1px solid var(--border);
        color: var(--text-secondary);
        padding: 0.35rem 0.7rem;
        border-radius: 999px;
    }

    .pxa-chip .pxm2-icon {
        color: var(--primary);
    }

    a.pxa-chip {
        text-decoration: none;
        transition: border-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
    }

    a.pxa-chip:hover {
        border-color: var(--primary);
        color: var(--text-primary);
        transform: translateY(-1px);
    }

    /* ---------- Callouts ---------- */

    .pxa-alert {
        display: flex;
        gap: 0.85rem;
        align-items: flex-start;
        background: var(--bg-secondary);
        border: 1px solid var(--border);
        border-left: 3px solid var(--primary);
        color: var(--text-secondary);
        border-radius: 10px;
        padding: 1.1rem 1.25rem;
        margin: 1.5rem 0;
    }

    .pxa-alert .pxm2-icon {
        color: var(--primary);
        flex-shrink: 0;
        margin-top: 0.15rem;
    }

    .pxa-alert strong {
        color: var(--text-primary);
    }

    .pxa-alert--tip {
        background: rgba(16, 185, 129, 0.06);
        border-color: rgba(16, 185, 129, 0.25);
        border-left-color: var(--success);
    }

    .pxa-alert--tip .pxm2-icon {
        color: var(--success);
    }

    .pxa-alert--warn {
        background: rgba(245, 158, 11, 0.07);
        border-color: rgba(245, 158, 11, 0.25);
        border-left-color: var(--warning);
    }

    .pxa-alert--warn .pxm2-icon {
        color: var(--warning);
    }

    /* ---------- Resource / tool card grid ---------- */

    .pxa-cards {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 1rem;
        margin: 1.5rem 0;
    }

    .pxa-card {
        display: flex;
        flex-direction: column;
        gap: 0.6rem;
        background: var(--bg-secondary);
        border: 1px solid var(--border);
        border-radius: 12px;
        padding: 1.1rem 1.25rem;
        transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    }

    .pxa-card:hover {
        border-color: var(--primary);
        transform: translateY(-2px);
        box-shadow: 0 6px 16px var(--glow-color);
    }

    .pxa-card-top {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 0.75rem;
        flex-wrap: wrap;
    }

    .pxa-card-name {
        font-family: var(--font-mono);
        font-weight: 700;
        font-size: 0.88rem;
        color: var(--primary);
        text-decoration: none;
        display: inline-flex;
        align-items: center;
        gap: 0.35rem;
        word-break: break-word;
    }

    a.pxa-card-name:hover {
        text-decoration: underline;
    }

    .pxa-card-name .pxm2-icon {
        color: var(--gray);
        flex-shrink: 0;
    }

    .pxa-card-badge {
        display: inline-flex;
        align-items: center;
        gap: 0.3rem;
        font-size: 0.75rem;
        font-weight: 700;
        color: var(--warning);
        white-space: nowrap;
    }

    .pxa-card-desc {
        font-size: 0.85rem;
        color: var(--text-secondary);
        margin: 0;
    }

    .pxa-card-features {
        list-style: none;
        margin: 0.2rem 0 0;
        padding: 0;
        display: flex;
        flex-direction: column;
        gap: 0.4rem;
    }

    .pxa-card-features li {
        display: flex;
        gap: 0.5rem;
        align-items: flex-start;
        font-size: 0.82rem;
        color: var(--text-secondary);
    }

    .pxa-card-features li::before {
        content: '';
        flex-shrink: 0;
        margin-top: 0.45rem;
        width: 0.35rem;
        height: 0.35rem;
        border-radius: 50%;
        background: var(--primary);
    }

    .pxa-card-note {
        display: flex;
        gap: 0.4rem;
        align-items: flex-start;
        font-size: 0.76rem;
        font-style: italic;
        color: var(--gray);
        margin: 0.2rem 0 0;
        padding-top: 0.5rem;
        border-top: 1px solid var(--border);
    }

    .pxa-card-note .pxm2-icon {
        color: var(--warning);
        flex-shrink: 0;
        margin-top: 0.1rem;
    }

    .pxa-card-cat {
        font-family: var(--font-mono);
        font-size: 0.68rem;
        text-transform: uppercase;
        letter-spacing: 0.05em;
        color: var(--gray);
        margin: 1.25rem 0 0.5rem;
        font-weight: 600;
    }

    /* ---------- Use-case grid ---------- */

    .pxa-usecases {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 1rem;
        margin: 1.5rem 0;
    }

    .pxa-usecase {
        background: var(--bg-secondary);
        border: 1px solid var(--border);
        border-radius: 12px;
        padding: 1.25rem;
        transition: border-color 0.2s ease, transform 0.2s ease;
    }

    .pxa-usecase:hover {
        border-color: var(--primary);
        transform: translateY(-2px);
    }

    .pxa-usecase .pxm2-icon {
        color: var(--primary);
        margin-bottom: 0.6rem;
    }

    .pxa-usecase h3 {
        margin: 0 0 0.35rem;
        font-size: 1rem;
    }

    .pxa-usecase p {
        font-size: 0.88rem;
        margin: 0;
    }

    /* ---------- Code sample ---------- */

    .pxa-code-wrap {
        background: var(--bg-secondary);
        border: 1px solid var(--border);
        border-radius: 14px;
        padding: 1.15rem 1.25rem 0.9rem;
        margin: 1.25rem 0 1.5rem;
        overflow-x: auto;
    }

    .pxa-code-label {
        font: 700 0.7rem/1 var(--font-mono);
        letter-spacing: 0.06em;
        text-transform: uppercase;
        color: var(--primary);
        margin-bottom: 0.75rem;
    }

    .pxa-code {
        font: 500 0.78rem/1.75 var(--font-mono);
        color: var(--text-secondary);
        white-space: pre;
        margin: 0;
    }

    .pxa-code-foot {
        border-top: 1px dashed var(--border);
        margin-top: 0.9rem;
        padding-top: 0.75rem;
        font: 500 0.72rem/1.5 var(--font-mono);
        color: var(--gray);
    }

    /* ---------- Bottom CTA banner ---------- */

    .pxa-cta {
        background: linear-gradient(160deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
        border: 1px solid var(--border);
        border-radius: 18px;
        padding: 3rem 2rem;
        text-align: center;
        margin: 3.5rem 0 1rem;
    }

    .pxa-cta h2 {
        margin: 0 0 0.6rem;
        padding-top: 0;
    }

    .pxa-cta h2::before {
        display: none;
    }

    .pxa-cta p {
        max-width: 560px;
        margin: 0 auto 1.5rem;
    }

    .pxa-cta-btn {
        display: inline-flex;
        align-items: center;
        gap: 0.45rem;
        background: var(--primary);
        color: var(--white);
        font-weight: 600;
        font-size: 0.9rem;
        padding: 0.75rem 1.5rem;
        border-radius: 10px;
        text-decoration: none;
        transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
        box-shadow: 0 4px 12px var(--glow-color);
    }

    .pxa-cta-btn:hover {
        background: var(--primary-dark);
        transform: translateY(-1px);
        box-shadow: 0 6px 16px var(--glow-color);
    }

    /* ---------- Responsive ---------- */

    @media (max-width: 640px) {
        .pxa-article h2 { font-size: 1.45rem; }
        .pxa-code { font-size: 0.72rem; }
        .pxa-cta { padding: 2.25rem 1.25rem; }
        .pxa-table { font-size: 0.85rem; }
    }