/*
     * Flagship visual language adapted from templates/proxies/proxy_list.html
     * (/mobile-proxies/) -- ambient floating blobs, two-tone gradient hero,
     * stats banner, section-title/subtitle rhythm, and a tinted feature-card
     * grid -- reproduced under the .smh- prefix so nothing collides with
     * proxy_list.html's own .pxm2- rules.
     */
    .smh-ambient {
        position: absolute;
        top: 0;
        left: 50%;
        width: 100vw;
        margin-left: -50vw;
        height: 110vh;
        z-index: 0;
        pointer-events: none;
        overflow: hidden;
        -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 20%, #000 0%, transparent 78%);
                mask-image: radial-gradient(ellipse 70% 70% at 50% 20%, #000 0%, transparent 78%);
    }
    .smh-ambient-blob {
        position: absolute;
        border-radius: 50%;
        pointer-events: none;
        will-change: transform;
        transform: translateZ(0);
    }
    .smh-ambient-warm {
        width: 640px;
        height: 640px;
        background: radial-gradient(circle, rgba(255, 163, 102, 0.34) 0%, rgba(255, 163, 102, 0.13) 32%, transparent 68%);
        top: -6%;
        left: 8%;
        opacity: 0.5;
        animation: smhAmbientFloat1 22s cubic-bezier(0.37, 0, 0.63, 1) infinite;
    }
    .smh-ambient-blue {
        width: 760px;
        height: 760px;
        background: radial-gradient(circle, rgba(96, 130, 225, 0.30) 0%, rgba(96, 130, 225, 0.11) 32%, transparent 68%);
        top: 18%;
        right: -6%;
        opacity: 0.45;
        animation: smhAmbientFloat2 28s cubic-bezier(0.37, 0, 0.63, 1) infinite;
    }
    .smh-ambient-cyan {
        width: 520px;
        height: 520px;
        background: radial-gradient(circle, rgba(64, 190, 215, 0.28) 0%, rgba(64, 190, 215, 0.10) 32%, transparent 68%);
        top: 42%;
        left: -4%;
        opacity: 0.42;
        animation: smhAmbientFloat3 34s cubic-bezier(0.45, 0, 0.55, 1) infinite;
    }
    @keyframes smhAmbientFloat1 {
        0%   { transform: translate(0, 0) scale(1); }
        22%  { transform: translate(130px, 70px) scale(1.14); }
        48%  { transform: translate(-70px, 150px) scale(0.9); }
        74%  { transform: translate(-140px, 55px) scale(1.08); }
        100% { transform: translate(0, 0) scale(1); }
    }
    @keyframes smhAmbientFloat2 {
        0%   { transform: translate(0, 0) scale(1); }
        26%  { transform: translate(-160px, -95px) scale(1.15); }
        54%  { transform: translate(110px, -130px) scale(0.88); }
        80%  { transform: translate(80px, 75px) scale(1.06); }
        100% { transform: translate(0, 0) scale(1); }
    }
    @keyframes smhAmbientFloat3 {
        0%   { transform: translate(0, 0) scale(1); }
        33%  { transform: translate(105px, -80px) scale(1.2); }
        66%  { transform: translate(-95px, 70px) scale(0.85); }
        100% { transform: translate(0, 0) scale(1); }
    }
    @media (prefers-reduced-motion: reduce) {
        .smh-ambient-blob { animation: none !important; }
    }

    .smh-hero {
        text-align: center;
        max-width: 1200px;
        margin: 0 auto 3rem auto;
        padding: 3.5rem 1.5rem 3rem;
        position: relative;
    }
    .smh-hero > * {
        position: relative;
        z-index: 2;
    }
    .smh-hero-eyebrow {
        display: inline-flex;
        align-items: center;
        padding: 0.3rem 0.9rem;
        border-radius: 999px;
        background: rgba(255, 255, 255, 0.75);
        border: 1px solid rgba(90, 140, 220, 0.35);
        font-family: var(--font-mono);
        font-size: 0.7rem;
        font-weight: 500;
        letter-spacing: 0.1em;
        text-transform: uppercase;
        color: var(--text-primary);
        backdrop-filter: blur(4px);
        -webkit-backdrop-filter: blur(4px);
        margin-bottom: 1.25rem;
    }
    [data-theme="dark"] .smh-hero-eyebrow {
        background: rgba(255, 255, 255, 0.05);
        border-color: rgba(255, 163, 102, 0.35);
    }
    .smh-hero-title {
        font-family: var(--font-heading);
        font-size: clamp(2.5rem, 6vw, 4.25rem);
        font-weight: 800;
        color: var(--text-primary);
        line-height: 1.08;
        margin-bottom: 1.5rem;
        letter-spacing: -0.03em;
    }
    .smh-hero-title-line1 {
        display: block;
        color: var(--text-primary);
    }
    .smh-hero-title-line2 {
        display: block;
        color: var(--primary);
    }
    .smh-hero-desc {
        font-size: clamp(1.05rem, 2vw, 1.3rem);
        font-weight: 500;
        color: var(--text-secondary);
        max-width: 760px;
        margin: 0 auto 0.5rem auto;
        line-height: 1.5;
    }
    .smh-hero-supporting {
        font-size: 1rem;
        color: var(--text-secondary);
        opacity: 0.85;
        margin: 0 auto 2.25rem auto;
        max-width: 720px;
        line-height: 1.6;
    }
    .smh-hero-actions {
        display: flex;
        justify-content: center;
        gap: 1rem;
        flex-wrap: wrap;
        margin-bottom: 2.25rem;
    }
    .smh-hero-featstrip {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.75rem 1.75rem;
        width: 100%;
        max-width: 760px;
        margin: 0 auto;
    }
    .smh-hero-featstrip-item {
        display: inline-flex;
        align-items: center;
        gap: 0.45rem;
        font-family: var(--font-heading);
        font-weight: 600;
        font-size: 0.9rem;
        color: var(--text-secondary);
        white-space: nowrap;
    }
    .smh-hero-featstrip-check { color: var(--success); flex-shrink: 0; }

    /* Stats banner -- a second .smh-hero shell holding only stats */
    .smh-stats-summary {
        display: flex;
        justify-content: space-around;
        gap: 1.5rem;
        flex-wrap: wrap;
        border-top: 1px solid var(--border);
        padding-top: 1.75rem;
    }
    .smh-stat-item {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    .smh-stat-item .number {
        font-size: 1.75rem;
        font-weight: 800;
        color: var(--primary);
        font-family: var(--font-heading);
    }
    .smh-stat-item .label {
        font-size: 0.75rem;
        color: var(--text-secondary);
        margin-top: 0.2rem;
        font-weight: 500;
    }

    /* Section rhythm */
    .smh-layout-container {
        max-width: 1200px;
        margin: 4rem auto 0 auto;
        padding: 3rem 1.5rem 0 1.5rem;
        border-top: 1px solid var(--border);
        box-sizing: border-box;
    }
    .smh-section {
        margin-bottom: 5rem;
        width: 100%;
        box-sizing: border-box;
    }
    .smh-section-title {
        font-family: var(--font-heading);
        font-size: 2.25rem;
        font-weight: 800;
        color: var(--text-primary);
        margin-bottom: 0.5rem;
        text-align: center;
    }
    .smh-section-subtitle {
        font-size: 1.05rem;
        color: var(--text-secondary);
        text-align: center;
        margin-bottom: 2.5rem;
        max-width: 700px;
        margin-left: auto;
        margin-right: auto;
        line-height: 1.6;
    }

    /*
     * Interactive use-case selector widget -- left pane list + right pane
     * detail, reproduced from templates/proxies/home.html's
     * .use-cases-section/.use-case-item/.use-case-detail-pane widget under
     * the .smh- prefix (this page has 5 items, not 6, so the auto-scrolling
     * infinite-loop carousel is left out -- click-to-select only).
     */
    .smh-usecases-container {
        display: grid;
        grid-template-columns: 1fr 1.6fr;
        gap: 2rem;
        align-items: start;
        margin-top: 2rem;
    }

    .smh-usecases-list {
        display: flex;
        flex-direction: column;
        gap: 0.65rem;
    }

    .smh-usecase-item {
        background: var(--bg-secondary);
        border: 1px solid var(--border);
        border-radius: 14px;
        padding: 0.9rem 1.1rem;
        cursor: pointer;
        display: flex;
        flex-direction: column;
        gap: 0.35rem;
        position: relative;
        transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
        border-left: 3px solid transparent;
        text-decoration: none;
        color: inherit;
    }

    .smh-usecase-item:hover {
        transform: translateY(-2px);
        border-color: var(--primary);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    }

    .smh-usecase-item.active {
        background: var(--bg-primary);
        border-color: var(--primary);
        border-left: 3px solid var(--primary);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    }

    .smh-usecase-item-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: 100%;
        gap: 0.5rem;
    }

    .smh-usecase-item-header h4 {
        font-family: var(--font-heading);
        font-size: 1rem;
        font-weight: 700;
        color: var(--text-primary);
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }

    .smh-usecase-badge-meta {
        font-size: 0.72rem;
        color: var(--gray);
        font-weight: 500;
        letter-spacing: 0.05em;
        white-space: nowrap;
    }

    .smh-usecase-item p {
        font-size: 0.82rem;
        color: var(--text-secondary);
        line-height: 1.5;
    }

    .smh-usecase-tags {
        display: flex;
        gap: 0.4rem;
        flex-wrap: wrap;
        margin-top: 0.1rem;
    }

    .smh-usecase-tag {
        font-size: 0.7rem;
        padding: 0.15rem 0.5rem;
        border-radius: 4px;
        background: var(--bg-tertiary);
        color: var(--text-secondary);
        border: 1px solid var(--border);
        font-weight: 500;
    }

    /* Detail pane */
    .smh-usecase-detail-pane {
        background: var(--bg-secondary);
        border: 1px solid var(--border);
        border-radius: 20px;
        padding: 2rem;
        position: relative;
        overflow: hidden;
        box-shadow: var(--card-shadow);
        transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .smh-usecase-detail-content {
        transition: opacity 0.35s cubic-bezier(0.25, 1, 0.5, 1), transform 0.35s cubic-bezier(0.25, 1, 0.5, 1);
        opacity: 1;
        transform: translateY(0);
        position: relative;
        height: 100%;
        display: flex;
        flex-direction: column;
    }

    .smh-usecase-detail-header-row {
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 0.75rem;
        border-bottom: 1px solid var(--border);
        padding-bottom: 0.75rem;
        margin-bottom: 1.1rem;
    }

    .smh-usecase-detail-header-row h3 {
        font-family: var(--font-heading);
        font-size: 1.4rem;
        font-weight: 800;
        color: var(--text-primary);
        letter-spacing: -0.02em;
        display: flex;
        align-items: center;
        gap: 0.6rem;
    }

    .smh-usecase-detail-badges {
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }

    .smh-usecase-detail-badge {
        font-size: 0.72rem;
        font-weight: 600;
        padding: 0.25rem 0.6rem;
        border-radius: 6px;
        background: var(--bg-tertiary);
        color: var(--text-secondary);
        border: 1px solid var(--border);
    }

    .smh-usecase-detail-badge.active {
        background: var(--text-primary);
        color: var(--bg-primary);
        border-color: var(--text-primary);
    }

    .smh-usecase-detail-badge-rating {
        font-size: 0.75rem;
        font-weight: 600;
        color: var(--primary);
        margin-left: 0.5rem;
        text-transform: uppercase;
        letter-spacing: 0.05em;
    }

    .smh-usecase-challenge-solution-row {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
        margin-bottom: 1.25rem;
    }

    .smh-usecase-challenge-box {
        background: rgba(239, 68, 68, 0.03);
        border: 1px solid rgba(239, 68, 68, 0.1);
        border-left: 3px solid var(--danger);
        border-radius: 10px;
        padding: 1rem 1.1rem;
    }

    .smh-usecase-solution-box {
        background: rgba(16, 185, 129, 0.03);
        border: 1px solid rgba(16, 185, 129, 0.1);
        border-left: 3px solid var(--success);
        border-radius: 10px;
        padding: 1rem 1.1rem;
    }

    .smh-box-label {
        display: block;
        font-size: 0.7rem;
        font-weight: 700;
        letter-spacing: 0.05em;
        margin-bottom: 0.35rem;
    }

    .smh-challenge-label { color: var(--danger); }
    .smh-solution-label { color: var(--success); }

    .smh-usecase-challenge-box p,
    .smh-usecase-solution-box p {
        font-size: 0.85rem;
        color: var(--text-secondary);
        line-height: 1.5;
    }

    .smh-usecase-capabilities-section {
        margin-bottom: 1.25rem;
    }

    .smh-section-label, .smh-results-label {
        display: block;
        font-size: 0.7rem;
        font-weight: 700;
        letter-spacing: 0.05em;
        color: var(--gray);
        margin-bottom: 0.5rem;
    }

    .smh-usecase-capabilities-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 0.5rem 1rem;
    }

    .smh-capabilities-list {
        list-style: none;
        display: flex;
        flex-direction: column;
        gap: 0.4rem;
        margin: 0;
        padding: 0;
    }

    .smh-capabilities-list li {
        font-size: 0.85rem;
        color: var(--text-primary);
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }

    .smh-capabilities-list li span {
        color: var(--primary);
        font-weight: bold;
    }

    .smh-usecase-results-box {
        background: var(--bg-tertiary);
        border: 1px solid var(--border);
        border-radius: 10px;
        padding: 0.9rem 1.1rem;
        margin-bottom: 1.25rem;
    }

    .smh-usecase-results-box p {
        font-size: 0.88rem;
        color: var(--text-primary);
        font-weight: 500;
        line-height: 1.5;
        margin: 0;
    }

    .smh-usecase-learn-more-link {
        font-size: 0.9rem;
        font-weight: 600;
        color: var(--text-primary);
        text-decoration: none;
        display: inline-flex;
        align-items: center;
        transition: color 0.2s;
    }

    .smh-usecase-learn-more-link:hover {
        color: var(--primary);
    }

    @media (max-width: 992px) {
        .smh-usecases-container {
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        .smh-usecase-detail-pane {
            padding: 2rem;
        }
        .smh-usecase-challenge-solution-row {
            grid-template-columns: 1fr;
        }
        .smh-usecase-capabilities-grid {
            grid-template-columns: 1fr;
        }
    }

    @media (max-width: 480px) {
        .smh-usecase-item {
            padding: 0.7rem 0.85rem;
        }
        .smh-usecase-detail-pane {
            padding: 1.25rem;
        }
        .smh-capabilities-list li {
            font-size: 0.8rem;
        }
    }

    /* Supporting prose blocks around the platform grid reuse the shared
       pxa-article typography; only the hub-specific spacing lives here. */
    .smh-section .pxa-article {
        margin: 2.5rem auto 0;
    }
    .smh-section .pxa-article h3:first-child {
        margin-top: 0;
    }