/*
 * LAYOUTS section — Step 11 admin redesign.
 *
 * Presentation only. The section is grouped into a `.subnav` tab bar (kit) and
 * every panel is a kit `.card`; this file owns just the Layouts-specific inner
 * layout (theme tiles, panel field grids, builder rows). All token-driven — no
 * dark `rgba(255,255,255,…)` surfaces — so it reads correctly on the light
 * content zone. Slimmed from the legacy `.platform-*-panel` one-offs.
 */

/* The active tab's content: stack its panels with a comfortable rhythm. */
.main .layouts-tabpanel {
    display: grid;
    gap: var(--space-lg);
}

/* Panels carry many buttons in the header (Add + Save); let it wrap. */
.main .platform-card .card__header { flex-wrap: wrap; }
.main .platform-card__body { display: grid; gap: var(--space-base); }

/* ── Theme gallery — kit .tile grid with a palette-poster art band ────────── */
.main .layouts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: var(--space-base);
}
.main .layouts-theme-tile--active {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 1px rgba(245, 200, 66, 0.45), var(--shadow-sm);
}
.main .layouts-theme-tile__art { height: 132px; }
.main .layouts-swatch {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-sm);
    width: 100%;
    max-width: 220px;
}
.main .layouts-swatch__dot {
    display: block;
    width: 100%;
    aspect-ratio: 1;
    min-height: 40px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    box-shadow: inset 0 0 0 1px rgba(16, 24, 40, 0.04);
}
.main .layouts-theme-tile__slug {
    font-family: var(--font-mono, ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace);
    font-size: 11px;
    color: var(--color-text-muted);
    word-break: break-word;
}
.main .layouts-theme-tile__apply { flex: 1 1 auto; justify-content: center; }

/* ── Brand panel ─────────────────────────────────────────────────────────── */
.main .platform-brand__logo-row {
    display: grid;
    grid-template-columns: 176px minmax(0, 1fr);
    align-items: center;
    gap: var(--space-base);
}
.main .platform-brand__logo-actions {
    display: flex;
    align-items: flex-end;
    gap: var(--space-base);
    flex-wrap: wrap;
}
.main .platform-brand__logo-actions .field { flex: 1 1 200px; margin: 0; }
.main .platform-brand__preview {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 64px;
    padding: var(--space-md);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-md);
    background: var(--surface-sunken);
    overflow: hidden;
}
.main .platform-brand__preview img {
    width: auto;
    max-width: 150px;
    height: 30px;
    max-height: 30px;
    object-fit: contain;
}
.main .platform-brand__preview span {
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--color-text);
}
.main .platform-brand__status {
    margin: 6px 0 0;
    color: var(--color-text-muted);
    font-size: var(--text-xs);
}
.main .platform-brand__file,
.main .platform-banners__file,
.main .platform-backgrounds__file { max-width: 100%; }

/* ── Typography panel ────────────────────────────────────────────────────── */
.main .platform-typography__fields {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-base);
}
.main .platform-typography__preview {
    display: grid;
    gap: 6px;
    min-height: 96px;
    padding: var(--space-lg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--surface-sunken);
}
.main .platform-typography__preview-title {
    margin: 0;
    font-size: 1.35rem;
    line-height: 1.15;
    color: var(--color-text);
}
.main .platform-typography__preview-body {
    margin: 0;
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
}

/* ── Shared builder section heading (banners / footer) ───────────────────── */
.main .platform-banners__section,
.main .platform-footer__section {
    display: grid;
    gap: var(--space-md);
    padding-bottom: var(--space-base);
    border-bottom: 1px solid var(--hairline);
}
.main .platform-banners__heading,
.main .platform-footer__section-title,
.main .platform-footer__item-title,
.main .platform-footer__subhead-title {
    margin: 0;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}
.main .platform-banners__title-row {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}
.main .platform-banners__checks {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-base);
}
.main .platform-banners__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-base);
}
.main .platform-banners__color,
.main .platform-backgrounds__color { min-height: 38px; padding: 3px; }
.main .platform-banners__image-row { margin: 0; }
.main .platform-banners__image-row .platform-banners__file { flex: 1 1 200px; }

/* Banners live preview — a faithful mini of the rendered chrome. */
.main .platform-banners__preview {
    display: grid;
    gap: var(--space-sm);
    padding: var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--surface-sunken);
}
.main .platform-banners-preview__bar {
    display: flex;
    min-height: 36px;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 8px var(--space-md);
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    font-weight: 700;
}
.main .platform-banners-preview__bar strong { text-decoration: underline; text-underline-offset: 3px; }
.main .platform-banners-preview__hero {
    display: grid;
    grid-template-columns: 160px minmax(0, 1fr);
    gap: var(--space-base);
    align-items: center;
    min-height: 118px;
    padding: var(--space-md);
    border-radius: var(--radius-md);
}
.main .platform-banners-preview__hero img,
.main .platform-banners-preview__image {
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-sm);
    object-fit: cover;
    background: rgba(16, 24, 40, 0.10);
}
.main .platform-banners-preview__image {
    display: flex;
    align-items: center;
    justify-content: center;
    color: inherit;
    font-size: var(--text-xs);
    font-weight: 800;
}
.main .platform-banners-preview__hero h3 { margin: 0; font-size: var(--text-base); line-height: 1.2; }
.main .platform-banners-preview__hero p { margin: 5px 0 0; font-size: var(--text-sm); opacity: .86; }
.main .platform-banners-preview__hero span {
    display: inline-flex;
    margin-top: 9px;
    min-height: 30px;
    align-items: center;
    border-radius: var(--radius-sm);
    padding: 6px var(--space-sm);
    font-size: var(--text-xs);
    font-weight: 900;
}

/* ── Backgrounds panel ───────────────────────────────────────────────────── */
.main .platform-backgrounds__group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-base);
}
.main .platform-backgrounds__group[hidden] { display: none !important; }
.main .platform-backgrounds__upload-row {
    display: grid;
    grid-template-columns: minmax(180px, 1fr) minmax(160px, .7fr) auto;
    gap: var(--space-base);
    align-items: center;
}
.main .platform-backgrounds__preview-wrap { display: grid; gap: var(--space-xs); }
.main .platform-backgrounds__preview-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}
.main .platform-backgrounds__preview {
    position: relative;
    isolation: isolate;
    min-height: 190px;
    overflow: hidden;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-position: center;
}
.main .platform-backgrounds-preview__video,
.main .platform-backgrounds-preview__overlay {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}
.main .platform-backgrounds-preview__video { z-index: -2; object-fit: cover; }
.main .platform-backgrounds-preview__overlay { z-index: -1; pointer-events: none; }
.main .platform-backgrounds-preview__content {
    position: relative;
    z-index: 0;
    display: grid;
    align-content: end;
    gap: 6px;
    min-height: 190px;
    padding: var(--space-lg);
    color: #fff;
    text-shadow: 0 1px 8px rgba(0, 0, 0, .62);
}
.main .platform-backgrounds-preview__content strong { font-size: 18px; }
.main .platform-backgrounds-preview__content span { color: rgba(255, 255, 255, .86); }

/* ── Menus builder (compact drag-list) ───────────────────────────────────── */
.main .platform-menus__list { display: grid; gap: var(--space-xs); }

/* Item row — a light card with a soft rest shadow that lifts on hover, so the
   list reads as a stack of premium reorderable cards. */
.main .platform-menus__row-card {
    position: relative;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    box-shadow: var(--shadow-sm);
    transition: border-color 150ms ease, box-shadow 150ms ease, background 150ms ease;
}
.main .platform-menus__row-card:hover {
    border-color: var(--color-text-muted);
    box-shadow: var(--shadow-md);
}
/* Expanded/edited row — a stronger neutral frame so the active row stands out
   (gold stays reserved for the primary Save). */
.main .platform-menus__row-card--open {
    border-color: var(--color-text-muted);
    box-shadow: var(--shadow-md);
}
.main .platform-menus__row-card--open > .platform-menus__row-main {
    border-bottom: 1px solid var(--hairline);
}
/* Dragged source — clearly "in motion", no layout shift. */
.main .platform-menus__row-card.is-dragging {
    opacity: .5;
    box-shadow: var(--shadow-lg);
}
/* Hovered drop target (a top-level card accepting a nested drop). */
.main .platform-menus__row-card.is-active {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 1px rgba(245, 200, 66, .45), var(--shadow-md);
}

.main .platform-menus__row-main {
    display: grid;
    grid-template-columns: 26px auto minmax(0, 1fr) auto auto;
    gap: var(--space-sm);
    align-items: center;
    min-height: 52px;
    padding: var(--space-sm) var(--space-md);
}
/* Drag handle — an obvious grab affordance: quiet at rest, a tinted pill on
   hover, grabbing cursor while held. */
.main .platform-menus__handle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 30px;
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    cursor: grab;
    transition: background 150ms ease, color 150ms ease;
}
.main .platform-menus__handle:hover {
    background: var(--surface-hover);
    color: var(--color-text);
}
.main .platform-menus__row-card.is-dragging .platform-menus__handle,
.main .platform-menus__handle:active { cursor: grabbing; }

/* Type badge — distinct but quiet (module green / page blue / link gray); a
   fixed min-width keeps the labels + summaries aligned down the column. */
.main .platform-menus__type {
    justify-self: start;
    min-width: 62px;
    justify-content: center;
    letter-spacing: 0.04em;
}
.main .platform-menus__summary {
    min-width: 0;
    display: grid;
    gap: 2px;
}
.main .platform-menus__label {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text);
}
.main .platform-menus__meta {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}
.main .platform-menus__check { white-space: nowrap; }
.main .platform-menus__actions,
.main .platform-footer__actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-xs);
    flex-wrap: wrap;
}
/* Edit pencil reads "on" while its editor is open (neutral toggle, not gold). */
.main .platform-menus__actions .btn--icon.is-open {
    background: var(--surface-hover);
    border-color: var(--color-border);
    color: var(--color-text);
}

/* Expanded editor — a recessed, framed zone nested under the row. */
.main .platform-menus__editor {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-md);
    align-items: end;
    margin: 0 var(--space-md) var(--space-md);
    padding: var(--space-md);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-sm);
    background: var(--surface-sunken);
}
.main .platform-menus__editor .platform-menus__field { margin: 0; }
.main .platform-menus__note,
.main .platform-footer__note {
    margin: 0;
    color: var(--color-text-muted);
    font-size: var(--text-xs);
}

/* Nested children — indented under the parent with a connector rail + recessed
   surface so the one-level hierarchy reads at a glance. */
.main .platform-menus__children {
    position: relative;
    display: grid;
    gap: var(--space-xs);
    margin: 0 var(--space-md) var(--space-sm) calc(var(--space-md) + 12px);
    padding-left: var(--space-md);
    border-left: 2px solid var(--color-border);
}
.main .platform-menus__children-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
    padding: var(--space-xs) 0;
}
.main .platform-menus__children-title {
    margin: 0;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-size: 11px;
    color: var(--color-text-muted);
}
.main .platform-menus__row-card--child {
    background: var(--surface-sunken);
    box-shadow: none;
}
.main .platform-menus__row-card--child:hover {
    border-color: var(--color-text-muted);
    box-shadow: var(--shadow-sm);
}
/* Connector stub from the rail to each child row. */
.main .platform-menus__row-card--child::after {
    content: "";
    position: absolute;
    top: 25px;
    left: calc(-1 * var(--space-md));
    width: var(--space-md);
    height: 2px;
    background: var(--color-border);
}

/* Drop placeholder — a hairline gap at rest that expands into a clear dashed
   accent bar with a "Drop here" label while dragging over it. */
.main .platform-menus__dropzone {
    min-height: 6px;
    border: 1px dashed transparent;
    border-radius: var(--radius-sm);
    color: transparent;
    font-size: 0;
    transition: min-height .12s ease, border-color .12s ease, background .12s ease, color .12s ease;
}
.main .platform-menus__dropzone.is-active {
    min-height: 34px;
    display: grid;
    place-items: center;
    border-color: var(--color-accent);
    background: rgba(245, 200, 66, .14);
    color: var(--color-text-secondary);
    font-size: var(--text-xs);
    font-weight: 600;
}

/* Add link / Add page — compact secondary buttons (icon + label). */
.main .platform-menus__small-btn {
    padding: 7px var(--space-base);
    font-size: var(--text-xs);
    gap: 6px;
}
.main .platform-menus__small-btn svg { width: 15px; height: 15px; }

/* ── Footer builder ──────────────────────────────────────────────────────── */
.main .platform-footer__columns,
.main .platform-footer__links,
.main .platform-footer__social-list { display: grid; gap: var(--space-md); }
.main .platform-footer__column {
    display: grid;
    gap: var(--space-md);
    padding: var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--surface-sunken);
}
.main .platform-footer__item-head,
.main .platform-footer__subhead {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
}
.main .platform-footer__link,
.main .platform-footer__social-item {
    display: grid;
    grid-template-columns: minmax(140px, 1fr) minmax(180px, 1.4fr) minmax(120px, .6fr) auto;
    gap: var(--space-md);
    align-items: end;
}
.main .platform-footer__social-item {
    grid-template-columns: minmax(140px, .8fr) minmax(180px, 1.6fr) auto;
}

/* ── Site & SEO panel ────────────────────────────────────────────────────── */
.main .platform-seo__text-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-base);
    align-items: start;
}
.main .platform-seo__asset-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-base);
    align-items: start;
}
.main .platform-seo__asset {
    display: grid;
    gap: var(--space-sm);
    align-content: start;
    padding: var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--surface-sunken);
}
.main .platform-seo__asset .empty-state { padding: var(--space-md); margin: 0; }
.main .platform-seo__preview {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}
.main .platform-seo__preview img {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    object-fit: contain;
    background: var(--surface-raised);
    border: 1px solid var(--color-border);
}

@media (max-width: 640px) {
    .main .platform-brand__logo-row,
    .main .platform-backgrounds__upload-row,
    .main .platform-banners-preview__hero,
    .main .platform-footer__link,
    .main .platform-footer__social-item {
        grid-template-columns: 1fr;
    }
    /* Keep the nav row compact on mobile: handle + badge + summary on line 1,
       actions + visible toggle on line 2 (never a tall single-column stack). */
    .main .platform-menus__row-main {
        grid-template-columns: 26px auto minmax(0, 1fr);
        grid-template-areas:
            "handle badge summary"
            "actions actions toggle";
        row-gap: var(--space-sm);
    }
    .main .platform-menus__handle { grid-area: handle; }
    .main .platform-menus__type { grid-area: badge; }
    .main .platform-menus__summary { grid-area: summary; }
    .main .platform-menus__check { grid-area: toggle; justify-self: end; }
    .main .platform-menus__actions { grid-area: actions; justify-content: flex-start; }
    .main .platform-menus__children {
        margin-left: var(--space-sm);
        padding-left: var(--space-sm);
    }
    .main .layouts-grid { grid-template-columns: 1fr; }
}