/* =========================================================
   SECTION STUDIO — gallery chrome (System A / website theme)
   Phase 3 · M1 skeleton. Uses the website design-system variables
   (variables.css); it NEVER styles generated section output (System B),
   which is token-driven inside isolated iframes from M2 on.
========================================================= */

/* ── Hero (matches the site's page-hero pattern — see .tools-hero) ──────── */
.reveal {
    animation: ss-reveal 0.7s cubic-bezier(0.16, 1, 0.3, 1) backwards;
    animation-delay: calc(var(--d, 0) * 80ms);
}
@keyframes ss-reveal {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Hero uses the shared site hero — templates/page-hero.php +
   assets/css/components/page-hero.css (loaded globally via main.css). */
.ss-eyebrow {
    display: inline-block;
    font-size: var(--text-sm);
    font-weight: var(--font-semi-bold);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-primary);
}
.ss-meta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-sm);
    color: var(--text-muted);
}
.ss-meta-pill {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-3);
    border: 1px solid var(--border-primary);
    border-radius: 999px;
    background: var(--surface-primary);
    font-weight: var(--font-semi-bold);
    color: var(--text-secondary);
}
.ss-meta-pill i { font-size: 8px; color: var(--success); }
.ss-meta-sep { color: var(--text-disabled); }

/* ── Body wrapper + gallery ────────────────────────────── */
.ss-body {
    max-width: 1180px;
    margin: 0 auto;
    padding: var(--space-10) var(--space-8) var(--space-32);
}

/* Business switcher ("What are you building?", §8) — its own dedicated strip
   between the identity bar and the pill toolbar. Tried living inside the
   pill toolbar first (broke when 15 pills wrap to 2-3 rows) and inside the
   identity bar second (disturbed that bar's own layout) — a standalone band
   is immune to both: always exactly one row, never sharing flex space with
   anything that reflows. */
.ss-context-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    flex-wrap: wrap;
    margin: var(--space-6) auto var(--space-8);
    padding: 0.65rem 1.1rem;
    width: fit-content;
    max-width: 100%;
    background: var(--color-primary-soft);
    border: 1px solid var(--border-primary);
    border-radius: 999px;
}
.ss-context-label { font-size: 0.85rem; color: var(--text-secondary); white-space: nowrap; }

/* Business dropdown — built on .nav-dropdown (assets/css/nav.css, the same
   component behind the navbar's "Builders ▾"/"Studio ▾"). Deliberately
   skips the navbar's own .nav-link class (its animated underline reads as a
   bare nav link, not a control inside an already-tinted pill) — just the
   structural/interactive classes, with our own label color here. */
.ss-biz-trigger {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--color-primary);
    background: transparent;
    border: 0;
    padding: 0;
    cursor: pointer;
}
.ss-biz-trigger:disabled { cursor: default; }
.ss-biz-trigger:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; border-radius: 4px; }
/* .nav-dropdown-chevron only turns primary on open by default (nav.css) —
   here it stays primary at rest too, matching the label. */
.ss-biz-dropdown .nav-dropdown-chevron { color: var(--color-primary); }
.ss-biz-dropdown.is-loading { opacity: 0.6; pointer-events: none; }
.ss-biz-list { min-width: 200px; }
/* nav.css has a matching @media (max-width: 900px) rule that turns
   .nav-dropdown-list into a position:static, full-width, no-shadow block —
   correct for a submenu expanding INSIDE the collapsing hamburger drawer,
   but our strip isn't part of any drawer. Left un-overridden, that static
   block becomes a normal-flow child of the pill-shaped .ss-context-bar
   (border-radius:999px), ballooning it into a huge oval once open (found via
   live viewport inspection — screenshots at this width looked like a stray
   decorative blob, but it's this list's own box). Restore the floating
   popover behaviour here, scoped to just our dropdown. */
@media (max-width: 900px) {
    .ss-biz-list {
        position: absolute;
        top: calc(100% + var(--space-2));
        right: 0;
        min-width: 200px;
        width: max-content;
        max-width: 80vw;
        margin-top: 0;
        box-shadow: var(--shadow-lg);
        display: block;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-8px);
        transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
    }
    .ss-biz-dropdown.is-open .ss-biz-list {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
}

/* Toolbar: category filter pills. */
.ss-toolbar {
    display: flex;
    align-items: center;
    gap: 0.75rem 1.5rem;
    flex-wrap: wrap;
    padding-bottom: var(--space-5);
    margin-bottom: var(--space-8);
    border-bottom: 1px solid var(--border-primary);
}
.ss-filters { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.ss-pill {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--surface-primary);
    border: 1px solid var(--border-primary);
    border-radius: 999px;
    padding: 0.4rem 0.95rem;
    cursor: pointer;
    transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}
.ss-pill:hover { color: var(--text-primary); border-color: var(--border-secondary); }
.ss-pill.is-on { color: var(--text-inverse); background: var(--color-primary); border-color: transparent; }

.ss-gallery--grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.25rem;
}

.ss-cat-head {
    margin-bottom: 1.1rem;
}
.ss-cat-name {
    margin: 0 0 0.25rem;
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
}
.ss-cat-desc {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-muted);
}

.ss-cat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 460px));
    justify-content: start;
    gap: 1.25rem;
}

/* ── Card ──────────────────────────────────────────────── */
.ss-card {
    display: flex;
    flex-direction: column;
    background: var(--surface-primary);
    border: 1px solid var(--border-primary);
    border-radius: 14px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}
.ss-card:not(.ss-card--soon):hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}
.ss-card--soon {
    opacity: 0.72;
}

/* Page tray (Part B, PB-M0): card "Add to page" + toolbar tray */
.ss-card-add {
    position: absolute;
    top: 0.6rem;
    left: 0.6rem;
    z-index: 3;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.76rem;
    font-weight: 600;
    color: var(--text-primary);
    background: var(--surface-primary);
    border: 1px solid var(--border-primary);
    border-radius: 999px;
    padding: 0.3rem 0.62rem;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
}
.ss-card-add:hover { background: var(--color-primary); color: var(--text-inverse); border-color: var(--color-primary); }
.ss-card-add:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
.ss-card-add.is-added { background: var(--success); color: #fff; border-color: transparent; }

.ss-card-thumb {
    position: relative;
    overflow: hidden;
    background: var(--surface-secondary);
    border-bottom: 1px solid var(--border-subtle);
}
/* Coming-soon: fixed placeholder tile. Live: height set by JS (scaled preview). */
.ss-card--soon .ss-card-thumb {
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        linear-gradient(135deg, var(--color-primary-soft), transparent),
        var(--surface-secondary);
}
.ss-card--live { cursor: pointer; }
.ss-card--live .ss-card-thumb { min-height: 120px; }
.ss-thumb-scale { position: relative; pointer-events: none; }
.ss-thumb-scale iframe { display: block; width: 100%; border: 0; }
/* Skeleton shown until the lazy preview mounts. */
.ss-thumb-skeleton {
    position: absolute;
    inset: 0;
    background: var(--surface-secondary);
    transition: opacity var(--transition-normal);
}
.ss-card--live.is-loaded .ss-thumb-skeleton { opacity: 0; }
/* Expand affordance on hover. */
.ss-thumb-open {
    position: absolute;
    top: 0.6rem; right: 0.6rem;
    width: 30px; height: 30px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 8px;
    color: var(--text-inverse);
    background: var(--color-primary);
    box-shadow: var(--shadow-md);
    opacity: 0;
    transform: scale(0.85);
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    font-size: 0.8rem;
}
.ss-card--live:hover .ss-thumb-open,
.ss-card--live:focus-visible .ss-thumb-open { opacity: 1; transform: scale(1); }
.ss-card--live:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
.ss-card-thumb-mark {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: var(--color-primary-soft);
    border: 1px dashed var(--border-secondary);
}

/* ── Browser chrome ───────────────────────────────────────
   A quiet window frame above each live preview so a section reads as a real
   screen, not loose markup. Static + tiny — no images, no script. */
.ss-chrome {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.5rem 0.7rem;
    background: var(--surface-secondary);
    border-bottom: 1px solid var(--border-subtle);
}
.ss-chrome-dots { display: inline-flex; gap: 5px; flex: 0 0 auto; }
.ss-chrome-dots span { width: 8px; height: 8px; border-radius: 50%; background: var(--border-secondary); }
.ss-chrome-bar {
    flex: 1;
    height: 15px;
    border-radius: 8px;
    background: var(--surface-primary);
    border: 1px solid var(--border-subtle);
}

.ss-card-body {
    padding: 0.9rem 1rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}
.ss-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}
.ss-card-name {
    margin: 0;
    font-size: 1.12rem;
    font-weight: 600;
    color: var(--text-primary);
}
.ss-card-cat {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-primary);
    background: var(--color-primary-soft);
    padding: 0.15rem 0.5rem;
    border-radius: 6px;
}
.ss-card-badge {
    flex: 0 0 auto;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 0.2rem 0.5rem;
    border-radius: 999px;
}
.ss-card-badge--coming-soon {
    background: var(--surface-active);
    color: var(--text-muted);
}
.ss-card-badge--new {
    background: var(--color-primary-soft);
    color: var(--color-primary);
}

.ss-card-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.4rem;
}
.ss-tag {
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--text-muted);
    background: var(--surface-secondary);
    border: 1px solid var(--border-subtle);
    padding: 0.15rem 0.5rem;
    border-radius: 6px;
}
.ss-card-variants {
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-left: auto;
}
/* One-sentence description of what the section looks like
   (config/section-summaries.php). Cards carried only a name + category before,
   which read as a wall of codenames — and left the page with almost no text for
   a crawler. Clamped so a long sentence can't unbalance the grid. */
.ss-card-summary {
    margin: 0;
    font-size: 0.82rem;
    line-height: 1.5;
    color: var(--text-muted);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ── Gallery lead-in + category reference ──────────────────
   The page's h2s. Before these the heading tree went straight from the hero h1
   to the footer h3s, and the only body copy was the hero subtitle. */
.ss-browse {
    margin-bottom: var(--space-8);
}
.ss-browse-title {
    margin: 0 0 var(--space-3);
    font-size: var(--text-2xl);
    font-weight: var(--font-semi-bold);
    color: var(--text-primary);
}
.ss-browse-intro {
    margin: 0;
    max-width: 68ch;
    color: var(--text-secondary);
    line-height: 1.65;
}
.ss-catindex {
    margin-top: var(--space-16);
    padding-top: var(--space-10);
    border-top: 1px solid var(--border-primary);
}
.ss-catindex-title {
    margin: 0 0 var(--space-6);
    font-size: var(--text-xl);
    font-weight: var(--font-semi-bold);
    color: var(--text-primary);
}
.ss-catindex-list {
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-5) var(--space-8);
}
.ss-catindex-row dt {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: var(--font-semi-bold);
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}
.ss-catindex-row dt a {
    color: inherit;
    text-decoration: none;
}
.ss-catindex-row dt a:hover,
.ss-catindex-row dt a:focus-visible {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
}
.ss-catindex-count {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--color-primary);
    background: var(--color-primary-soft);
    padding: 0.1rem 0.4rem;
    border-radius: 6px;
}
.ss-catindex-row dd {
    margin: 0;
    font-size: 0.88rem;
    line-height: 1.6;
    color: var(--text-muted);
}

/* ── Category landing pages (/section-templates/<category>) ────────────
   pages/tools/section-category.php. Shares the gallery's hero, context bar and
   card grid; these are the blocks that only exist there. .sc- prefix. */
.sc-choosing,
.sc-glance,
.sc-faq,
.sc-siblings {
    margin-top: var(--space-16);
    padding-top: var(--space-10);
    border-top: 1px solid var(--border-primary);
}
.sc-choosing-title,
.sc-glance-title,
.sc-faq-title,
.sc-siblings-title {
    margin: 0 0 var(--space-5);
    font-size: var(--text-xl);
    font-weight: var(--font-semi-bold);
    color: var(--text-primary);
}
.sc-choosing-body {
    margin: 0;
    max-width: 72ch;
    line-height: 1.75;
    color: var(--text-secondary);
}

/* At a glance — label/value rows, same shape as the template spec tables. */
.sc-glance-list {
    margin: 0;
    display: grid;
    gap: var(--space-3);
}
.sc-glance-row {
    display: grid;
    grid-template-columns: minmax(140px, 200px) 1fr;
    gap: var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--border-primary);
}
.sc-glance-row dt {
    font-weight: var(--font-semi-bold);
    color: var(--text-primary);
    font-size: 0.9rem;
}
.sc-glance-row dd {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
}
@media (max-width: 560px) {
    .sc-glance-row { grid-template-columns: 1fr; gap: var(--space-1); }
}

/* FAQ — native <details>, no JS, matching the accordion pattern used by the
   shared SEO FAQ section. */
.sc-faq-item {
    border: 1px solid var(--border-primary);
    border-radius: 10px;
    background: var(--surface-primary);
    margin-bottom: var(--space-3);
}
.sc-faq-q {
    cursor: pointer;
    list-style: none;
    padding: var(--space-4) var(--space-5);
    font-weight: var(--font-semi-bold);
    color: var(--text-primary);
}
.sc-faq-q::-webkit-details-marker { display: none; }
.sc-faq-q::after {
    content: '+';
    float: right;
    color: var(--text-muted);
    font-weight: 400;
}
.sc-faq-item[open] .sc-faq-q::after { content: '\2013'; }
.sc-faq-a {
    margin: 0;
    padding: 0 var(--space-5) var(--space-5);
    max-width: 72ch;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* Sibling categories — flat internal linking, so every category page is one
   click from every other however large the catalog gets. */
.sc-siblings-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}
.sc-siblings-list a {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 0.5rem 0.9rem;
    border: 1px solid var(--border-primary);
    border-radius: 999px;
    background: var(--surface-primary);
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
}
.sc-siblings-list a:hover,
.sc-siblings-list a:focus-visible {
    border-color: var(--color-primary);
    color: var(--color-primary);
}
.sc-sib-count {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-muted);
}
.sc-siblings-list a:hover .sc-sib-count,
.sc-siblings-list a:focus-visible .sc-sib-count { color: var(--color-primary); }
.sc-siblings-foot {
    margin: var(--space-6) 0 0;
}
.sc-siblings-foot a {
    color: var(--color-primary);
    font-weight: 500;
    text-decoration: none;
}
.sc-siblings-foot a:hover { text-decoration: underline; text-underline-offset: 3px; }

/* ── Design-language identity strip ────────────────────────
   The live tokens made tangible: palette ribbon, fonts (in-font) and a surface
   sample carrying the real radius + shadow. Built by section-studio-app.js from
   the shared store; sits full-width above the filter pills. */
.ss-identity {
    display: flex;
    align-items: stretch;
    flex-wrap: wrap;
    justify-content: center;
    width: fit-content;
    max-width: 100%;
    margin: var(--space-8) auto 0;
    background: var(--surface-primary);
    border: 1px solid var(--border-primary);
    border-radius: 14px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}
.ss-id-seg { display: flex; align-items: center; gap: 0.75rem; padding: 0.7rem 1.15rem; }
.ss-id-div { width: 1px; flex: 0 0 auto; align-self: stretch; background: var(--border-subtle); }
.ss-id-meta { display: flex; flex-direction: column; gap: 0.28rem; }
.ss-id-lab {
    font-size: 0.64rem;
    font-weight: 600;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--text-muted);
}
.ss-id-ribbon { display: inline-flex; }
.ss-id-sw {
    width: 26px; height: 26px; display: block;
    box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.06);
}
.ss-id-sw:first-child { border-radius: 7px 0 0 7px; }
.ss-id-sw:last-child { border-radius: 0 7px 7px 0; }
.ss-id-glyph { font-size: 1.95rem; line-height: 1; color: var(--text-primary); }
.ss-id-val { font-size: 0.9rem; color: var(--text-primary); }
.ss-id-val-sub { color: var(--text-secondary); }
.ss-id-chip {
    width: 44px; height: 32px; flex: 0 0 auto;
    background: var(--surface-secondary);
    border: 1px solid var(--border-subtle);
}
.ss-id-adjust {
    display: flex; align-items: center; gap: 0.4rem;
    padding: 0.7rem 1.15rem;
    font-size: 0.88rem; font-weight: 500;
    color: var(--color-primary);
    text-decoration: none;
    white-space: nowrap;
}
.ss-id-adjust:hover { text-decoration: underline; }
@media (max-width: 640px) {
    .ss-id-div { display: none; }
    .ss-id-seg { padding: 0.6rem 0.9rem; }
}

/* ── Focus modal (section-focus.js) ────────────────────── */
.ss-variants,
.ssf-variants { display: inline-flex; gap: 0.25rem; background: var(--bg-tertiary); border: 1px solid var(--border-subtle); border-radius: 10px; padding: 0.2rem; }
.ss-variant,
.ssf-variant { font-size: 0.82rem; font-weight: 500; color: var(--text-secondary); background: transparent; border: 0; border-radius: 8px; padding: 0.35rem 0.75rem; cursor: pointer; transition: background var(--transition-fast), color var(--transition-fast); }
.ss-variant.is-on,
.ssf-variant.is-on { background: var(--surface-primary); color: var(--text-primary); box-shadow: var(--shadow-sm); }

.ssf-overlay { position: fixed; inset: 0; z-index: 1000; display: flex; align-items: center; justify-content: center; padding: 2vh 2vw; }
.ssf-backdrop { position: absolute; inset: 0; background: var(--overlay); }
.ssf-modal {
    position: relative;
    width: 100%;
    max-width: 1240px;
    max-height: 96vh;
    display: flex;
    flex-direction: column;
    background: var(--surface-primary);
    border: 1px solid var(--border-primary);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}
/* Gentle open: the viewer eases up + fades in (motion only, no lasting weight). */
@keyframes ssfModalIn { from { opacity: 0; transform: translateY(10px) scale(0.985); } to { opacity: 1; transform: none; } }
@keyframes ssfBackdropIn { from { opacity: 0; } to { opacity: 1; } }
@media (prefers-reduced-motion: no-preference) {
    .ssf-modal { animation: ssfModalIn 0.24s cubic-bezier(0.22, 1, 0.36, 1); }
    .ssf-backdrop { animation: ssfBackdropIn 0.2s ease; }
}
.ssf-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-subtle);
    background: var(--surface-secondary);
}
.ssf-bar-left, .ssf-bar-right { display: inline-flex; align-items: center; gap: 0.6rem; }
.ssf-title { margin: 0; font-size: 1.05rem; font-weight: 600; color: var(--text-primary); }
/* Business dropdown, modal version — same .nav-dropdown component as the
   page-level switcher (.ss-biz-* above) and the navbar itself, restyled to
   match this modal's muted chip language (.ssf-devices/.ssf-themes use the
   same bg-tertiary chip look). Unlike the page-level one this is wired by
   hand in section-focus.js (nav.js never sees modal markup — see the JS
   comment) rather than via nav.js's free DOMContentLoaded wiring. */
.ssf-business-trigger {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 0.35rem 0.6rem;
    cursor: pointer;
}
.ssf-business-trigger:hover { color: var(--text-primary); }
.ssf-business-trigger:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 1px; }
.ssf-business-trigger:disabled { opacity: 0.6; cursor: default; }
.ssf-business .nav-dropdown-chevron { width: 11px; height: 11px; color: var(--text-secondary); }
.ssf-business-list { min-width: 200px; }
/* Same nav.css mobile-drawer leak as the page-level switcher (see
   .ss-biz-list's comment above) — this modal can appear at narrow widths
   too (it has its own desktop/tablet/mobile PREVIEW toggle, but that only
   resizes the iframe, not the real host viewport this CSS responds to). */
@media (max-width: 900px) {
    .ssf-business-list {
        position: absolute;
        top: calc(100% + var(--space-2));
        right: 0;
        min-width: 200px;
        width: max-content;
        max-width: 80vw;
        margin-top: 0;
        box-shadow: var(--shadow-lg);
        display: block;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-8px);
        transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
    }
    .ssf-business.is-open .ssf-business-list {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
}
.ssf-devices { display: inline-flex; gap: 0.15rem; background: var(--bg-tertiary); border: 1px solid var(--border-subtle); border-radius: 10px; padding: 0.2rem; }
.ssf-dev { width: 32px; height: 30px; display: flex; align-items: center; justify-content: center; border: 0; border-radius: 8px; background: transparent; color: var(--text-secondary); cursor: pointer; }
.ssf-dev svg { width: 16px; height: 16px; }
.ssf-dev.is-on { background: var(--surface-primary); color: var(--text-primary); box-shadow: var(--shadow-sm); }
.ssf-themes { display: inline-flex; gap: 0.15rem; background: var(--bg-tertiary); border: 1px solid var(--border-subtle); border-radius: 10px; padding: 0.2rem; }
.ssf-theme { width: 32px; height: 30px; display: flex; align-items: center; justify-content: center; border: 0; border-radius: 8px; background: transparent; color: var(--text-secondary); cursor: pointer; transition: background var(--transition-fast), color var(--transition-fast); }
.ssf-theme svg { width: 15px; height: 15px; }
.ssf-theme:hover { color: var(--text-primary); }
.ssf-theme.is-on { background: var(--surface-primary); color: var(--text-primary); box-shadow: var(--shadow-sm); }
.ssf-close { width: 34px; height: 32px; display: flex; align-items: center; justify-content: center; border: 1px solid var(--border-primary); border-radius: 8px; background: var(--surface-primary); color: var(--text-secondary); cursor: pointer; }
.ssf-close svg { width: 17px; height: 17px; }
.ssf-close:hover { color: var(--text-primary); border-color: var(--border-secondary); }

.ssf-body { flex: 1; overflow: auto; padding: 1.25rem; background: var(--bg-secondary); display: flex; justify-content: center; }
.ssf-stage { width: 100%; max-width: 100%; margin: 0 auto; transition: max-width var(--transition-normal); }
.ssf-stage-frame { background: var(--surface-primary); border: 1px solid var(--border-subtle); border-radius: 12px; overflow: hidden; box-shadow: var(--shadow-sm); }
.ssf-stage-frame iframe { display: block; width: 100%; border: 0; }

.ssf-foot { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; padding: 0.75rem 1rem; border-top: 1px solid var(--border-subtle); background: var(--surface-secondary); }
.ssf-foot-slot { display: inline-flex; gap: 0.6rem; align-items: center; flex-wrap: wrap; }
.ssf-health {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.8rem;
    font-weight: 500;
    padding: 0.35rem 0.65rem;
    border-radius: 999px;
}
.ssf-health--ok { color: var(--success); background: color-mix(in srgb, var(--success) 12%, transparent); }
.ssf-health--warn { color: var(--warning); background: color-mix(in srgb, var(--warning) 14%, transparent); cursor: help; }
.ssf-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--surface-primary);
    border: 1px solid var(--border-primary);
    border-radius: 8px;
    padding: 0.4rem 0.75rem;
    cursor: pointer;
    transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}
.ssf-toggle:hover { color: var(--text-primary); border-color: var(--border-secondary); }
.ssf-toggle.is-on {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: var(--color-primary-soft);
}
.ssf-btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-inverse);
    background: var(--color-primary);
    border: 1px solid transparent;
    border-radius: 8px;
    padding: 0.45rem 0.9rem;
    cursor: pointer;
    transition: background var(--transition-fast);
}
.ssf-btn-primary:hover { background: var(--color-primary-hover); }

/* ── Export panel (M5) — overlays the modal body/footer ─── */
.ssf-export { display: none; }
.ssf-modal.is-exporting .ssf-body,
.ssf-modal.is-exporting .ssf-foot { display: none; }
.ssf-modal.is-exporting .ssf-export {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    background: var(--surface-primary);
}
.ssf-export-bar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    padding: 0.6rem 1rem;
    border-bottom: 1px solid var(--border-subtle);
    background: var(--surface-secondary);
}
.ssf-export-back {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    background: var(--surface-primary);
    border: 1px solid var(--border-primary);
    border-radius: 8px;
    padding: 0.4rem 0.7rem;
    cursor: pointer;
}
.ssf-export-back:hover { color: var(--text-primary); border-color: var(--border-secondary); }
.ssf-export-tabs { display: inline-flex; gap: 0.15rem; background: var(--bg-tertiary); border: 1px solid var(--border-subtle); border-radius: 10px; padding: 0.2rem; }
.ssf-export-tab {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: 0;
    border-radius: 8px;
    padding: 0.35rem 0.7rem;
    cursor: pointer;
}
.ssf-export-tab.is-on { background: var(--surface-primary); color: var(--text-primary); box-shadow: var(--shadow-sm); }
.ssf-export-actions { margin-left: auto; display: inline-flex; gap: 0.4rem; }
.ssf-export-copy, .ssf-export-dl {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--surface-primary);
    border: 1px solid var(--border-primary);
    border-radius: 8px;
    padding: 0.4rem 0.7rem;
    cursor: pointer;
}
.ssf-export-copy:hover, .ssf-export-dl:hover { color: var(--text-primary); border-color: var(--border-secondary); }
.ssf-export-code {
    flex: 1;
    min-height: 0;
    overflow: auto;
    margin: 0;
    padding: 1rem 1.1rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.8rem;
    line-height: 1.55;
    white-space: pre;
    tab-size: 2;
}
.ssf-link { margin-left: auto; font-size: 0.85rem; font-weight: 500; color: var(--color-primary); text-decoration: none; display: inline-flex; align-items: center; gap: 0.4rem; }
.ssf-link:hover { text-decoration: underline; }

@media (max-width: 560px) {
    .ssf-overlay { padding: 0; }
    .ssf-modal { max-width: 100%; max-height: 100vh; height: 100vh; border-radius: 0; border: 0; }
}

/* ── Empty state ───────────────────────────────────────── */
.ss-empty {
    text-align: center;
    padding: 4rem 1rem;
    border: 1px dashed var(--border-primary);
    border-radius: 14px;
    background: var(--surface-secondary);
}
.ss-empty-title {
    margin: 0 0 0.4rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}
.ss-empty-sub {
    margin: 0;
    color: var(--text-muted);
}

/* ── Responsive ────────────────────────────────────────── */
@media (max-width: 640px) {
    .ss-body { padding: var(--space-8) var(--space-5) var(--space-24); }
    .ss-gallery--grid { grid-template-columns: 1fr; }
    .ss-toolbar { gap: 0.6rem 1rem; }
}