.pchk-wrap {
        max-width: 1180px;
        margin: 2.5rem auto;
        padding: 0 1.5rem;
        box-sizing: border-box;
    }

    .pchk-badge-bar {
        display: flex;
        justify-content: flex-start;
        gap: 0.75rem;
        flex-wrap: wrap;
        margin-bottom: 1rem;
    }

    .pxm2-badge {
        background: rgba(255, 255, 255, 0.03);
        border: 1px solid var(--border);
        color: var(--text-secondary);
        padding: 0.35rem 0.85rem;
        border-radius: 50px;
        font-size: 0.82rem;
        font-weight: 500;
    }

    .pxm2-card-badge {
        display: inline-block;
        font-size: 0.7rem;
        font-weight: 600;
        color: var(--primary);
        background: rgba(255, 163, 102, 0.08);
        padding: 0.15rem 0.5rem;
        border-radius: 3px;
        margin-bottom: 0.75rem;
        text-transform: uppercase;
        width: fit-content;
    }

    .pchk-h1 {
        font-family: var(--font-heading);
        font-size: 2rem;
        font-weight: 800;
        color: var(--text-primary);
        margin: 0 0 0.5rem;
        text-align: left;
    }

    .pchk-lead {
        color: var(--text-secondary);
        font-size: 0.95rem;
        line-height: 1.6;
        max-width: 720px;
        margin: 0 0 2rem;
    }

    .pchk-hero-grid {
        display: grid;
        grid-template-columns: 1.3fr 0.9fr;
        gap: 3rem;
        align-items: start;
    }

    @media (max-width: 900px) {
        .pchk-hero-grid {
            grid-template-columns: 1fr;
            gap: 2.5rem;
        }
    }

    .pchk-checklist-label {
        display: block;
        font-size: 0.72rem;
        text-transform: uppercase;
        letter-spacing: 0.08em;
        color: var(--text-secondary);
        font-weight: 700;
        margin-bottom: 1.1rem;
    }

    .pchk-checklist {
        list-style: none;
        margin: 0;
        padding: 0;
        display: flex;
        flex-direction: column;
        gap: 1rem;
    }

    .pchk-checklist li {
        display: flex;
        align-items: flex-start;
        gap: 0.65rem;
    }

    .pchk-checklist .pxm2-icon {
        color: var(--success);
        flex-shrink: 0;
        margin-top: 0.15rem;
    }

    .pchk-checklist strong {
        display: block;
        font-size: 0.88rem;
        color: var(--text-primary);
    }

    .pchk-checklist p {
        margin: 0.15rem 0 0;
        font-size: 0.8rem;
        color: var(--text-secondary);
        line-height: 1.5;
    }

    /* Flat sections, no card backgrounds/borders -- matches the minimal
       diagnostic-widget aesthetic on /mobile-proxies/ (hairline dividers
       instead of boxed cards). */
    .pchk-section {
        margin-bottom: 2.5rem;
    }

    .pchk-section + .pchk-section {
        padding-top: 2.5rem;
        border-top: 1px solid var(--border);
    }

    .pchk-section h2 {
        font-family: var(--font-heading);
        font-size: 1.4rem;
        font-weight: 800;
        color: var(--text-primary);
        margin: 0 0 0.5rem;
    }

    .pchk-input-block {
        max-width: 640px;
    }

    label.pchk-label {
        display: block;
        font-size: 0.82rem;
        font-weight: 600;
        color: var(--text-secondary);
        text-transform: uppercase;
        letter-spacing: 0.04em;
        margin-bottom: 0.5rem;
    }

    .pchk-input {
        width: 100%;
        padding: 0.75rem 0.9rem;
        border: 1px solid var(--border);
        border-radius: 8px;
        background: var(--bg-secondary);
        color: var(--text-primary);
        font-family: var(--font-mono);
        font-size: 0.95rem;
        box-sizing: border-box;
    }

    .pchk-input:focus {
        outline: none;
        border-color: var(--primary);
    }

    .pchk-hint {
        color: var(--text-secondary);
        margin-top: 0.7rem;
        margin-bottom: 0;
        font-size: 0.85rem;
        line-height: 1.7;
    }

    .pchk-hint code {
        font-family: var(--font-mono);
        color: var(--text-primary);
    }

    .pchk-actions {
        margin-top: 1rem;
        display: flex;
        gap: 0.9rem;
        flex-wrap: wrap;
        align-items: center;
    }

    .pchk-actions .btn[disabled] {
        opacity: 0.6;
        cursor: not-allowed;
        transform: none;
    }

    .pchk-overall-status {
        display: inline-flex;
        align-items: center;
        gap: 0.45rem;
        font-size: 0.85rem;
        font-weight: 700;
        color: var(--text-secondary);
    }

    /* Flat diagnostic-stat pattern shared with the connection checker on
       /mobile-proxies/ (.pxm2-checker-*), duplicated here since this page
       is self-contained and there's no shared stylesheet to include from. */
    .pchk-results {
        display: none;
    }

    .pxm2-checker-row {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 2.5rem;
        align-items: start;
    }

    .pxm2-checker-row .pxm2-checker-card + .pxm2-checker-card {
        border-left: 1px solid var(--border);
        padding-left: 2.5rem;
    }

    @media (max-width: 900px) {
        .pxm2-checker-row {
            grid-template-columns: 1fr;
            gap: 3rem;
        }
        .pxm2-checker-row .pxm2-checker-card + .pxm2-checker-card {
            border-left: none;
            padding-left: 0;
        }
    }

    .pxm2-checker-card {
        background: transparent;
        border: none;
        padding: 0;
    }

    .pxm2-checker-title {
        font-family: var(--font-heading);
        font-size: 1.05rem;
        font-weight: 800;
        color: var(--text-primary);
        margin: 0 0 1.1rem;
    }

    .pxm2-checker-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 1.25rem 2rem;
    }

    .pxm2-checker-stat {
        display: flex;
        flex-direction: column;
        gap: 0.3rem;
        padding-left: 0.9rem;
        border-left: 2px solid var(--border);
        transition: border-color 0.3s ease;
    }

    .pxm2-checker-stat:has(.pxm2-checker-value[style*="--success"]) {
        border-left-color: var(--success);
    }

    .pxm2-checker-stat:has(.pxm2-checker-value[style*="--danger"]) {
        border-left-color: var(--danger, #e5484d);
    }

    .pxm2-checker-label {
        font-size: 0.68rem;
        text-transform: uppercase;
        letter-spacing: 0.08em;
        color: var(--text-secondary);
        font-weight: 600;
    }

    .pxm2-checker-value {
        font-size: 0.95rem;
        font-weight: 700;
        font-family: var(--font-mono);
        color: var(--text-primary);
        transition: color 0.2s ease;
        word-break: break-word;
    }

    .pxm2-checker-value--flash {
        animation: pxm2-checker-value-flash 0.5s ease-out;
    }

    @keyframes pxm2-checker-value-flash {
        0% { opacity: 0.25; transform: translateY(3px); }
        100% { opacity: 1; transform: translateY(0); }
    }

    .pxm2-checker-dot {
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: var(--text-secondary);
        display: inline-block;
        flex-shrink: 0;
    }

    .pxm2-checker-dot--pending {
        background: var(--warning);
        animation: pxm2-checker-pulse 1s ease-in-out infinite;
    }

    .pxm2-checker-dot--ok {
        background: var(--success);
        box-shadow: 0 0 8px rgba(16, 185, 129, 0.5);
    }

    .pxm2-checker-dot--error {
        background: var(--danger, #e5484d);
    }

    @keyframes pxm2-checker-pulse {
        0%, 100% { opacity: 1; }
        50% { opacity: 0.35; }
    }

    @media (max-width: 640px) {
        .pxm2-checker-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem 1.25rem;
        }
    }

    .pchk-details {
        margin-top: 1.75rem;
        border-top: 1px solid var(--border);
        padding-top: 1.25rem;
    }

    .pchk-details summary {
        cursor: pointer;
        font-weight: 600;
        color: var(--text-primary);
        font-size: 0.88rem;
        list-style: none;
    }

    .pchk-details summary::-webkit-details-marker {
        display: none;
    }

    .pchk-checks-list {
        margin: 1rem 0 0;
        padding: 0;
        list-style: none;
        display: grid;
        gap: 0.55rem;
    }

    .pchk-check-item {
        border: 1px solid var(--border);
        border-radius: 8px;
        padding: 0.6rem 0.75rem;
        background: var(--bg-primary);
        font-size: 0.88rem;
    }

    .pchk-check-title {
        font-weight: 700;
        margin-bottom: 0.25rem;
    }

    .pchk-seo h3 {
        font-family: var(--font-heading);
        font-size: 1.05rem;
        font-weight: 800;
        color: var(--text-primary);
        margin: 1.25rem 0 0.5rem;
    }

    .pchk-seo p {
        color: var(--text-secondary);
        line-height: 1.7;
        max-width: 780px;
    }

    .pchk-error {
        display: none;
        border-left: 2px solid var(--danger, #e5484d);
        padding-left: 0.9rem;
        color: var(--danger, #e5484d);
        font-weight: 700;
        font-size: 0.9rem;
    }