/*
 * Instinctor Unfold (accordion) — static rules
 *
 * Pre-consolidation the renderer emitted ~50 lines of inline CSS per
 * unfold block, with the wrapper id baked into every selector. All
 * structural rules are identical for every unfold block on every page;
 * only per-instance VALUES (colours, dimensions, blur intensity, tile
 * columns) differ. Surfaced here as CSS variables on the wrapper —
 * the renderer emits a single `style="--unf-…"` declaration plus
 * `data-…` attributes, and these rules do the rest.
 *
 * Variables consumed (all set on .impulse-unfold by the renderer):
 *   --unf-title         header / title colour
 *   --unf-content       body text colour
 *   --unf-content-bg    body / active background
 *   --unf-accent        active / highlight colour
 *   --unf-border        border colour
 *   --unf-radius        border-radius (px)
 *   --unf-pad           content padding (px)
 *   --unf-width         outer accordion width (% or px) — desktop
 *   --unf-width-tab     tablet width override (optional)
 *   --unf-width-mob     mobile width override (optional)
 *   --unf-tile-h        tile min-height (tiles mode, px)
 *   --unf-card-h        card height (rolodex mode, px)
 *   --unf-gap           grid gap (tiles mode, px)
 *   --unf-cols          desktop columns (tiles)
 *   --unf-cols-tab      tablet columns (optional, falls back to desktop)
 *   --unf-cols-mob      mobile columns (optional, falls back to tablet)
 *   --unf-blur          spotlight blur (px)
 *   --unf-spot-bg       spotlight container bg
 *   --unf-t-size        title font-size (px)
 *   --unf-c-size        content font-size (px)
 *   --unf-n-size        number font-size (px)
 *
 * Phase 1 CSS-consolidation pass post-step-38.
 */

/* ── Outer width (all modes) ──────────────────────────────────────── */
.impulse-unfold {
    width: var(--unf-width, 100%);
    margin: 0 auto;
    align-self: center;
}
@media (max-width: 1024px) {
    .impulse-unfold { width: var(--unf-width-tab, var(--unf-width, 100%)); }
}
@media (max-width: 767px) {
    .impulse-unfold { width: var(--unf-width-mob, var(--unf-width-tab, var(--unf-width, 100%))); }
}

/* ─────────────────────────────────────────────────────────────────── */
/* TILES MODE                                                          */
/* ─────────────────────────────────────────────────────────────────── */
.impulse-acc-tiles {
    display: grid;
    grid-template-columns: repeat(var(--unf-cols, 3), 1fr);
    gap: var(--unf-gap, 16px);
}
@media (max-width: 1024px) {
    .impulse-acc-tiles {
        grid-template-columns: repeat(var(--unf-cols-tab, var(--unf-cols, 3)), 1fr);
    }
}
@media (max-width: 767px) {
    .impulse-acc-tiles {
        grid-template-columns: repeat(var(--unf-cols-mob, var(--unf-cols-tab, var(--unf-cols, 3))), 1fr);
    }
}

.impulse-acc-tile {
    position: relative;
    min-height: var(--unf-tile-h, 180px);
    background: var(--unf-content-bg, #fff);
    border: 1px solid var(--unf-border, #e0e0e0);
    border-radius: var(--unf-radius, 8px);
    cursor: pointer;
    overflow: hidden;
    transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
    display: grid;
    grid-template: 1fr / 1fr;
}
.impulse-acc-tile:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}
.impulse-acc-tile-front {
    grid-area: 1 / 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px 16px;
    box-sizing: border-box;
    text-align: center;
}
.impulse-acc-tile-title {
    font-weight: 600;
    color: var(--unf-title, #1d2327);
    margin-bottom: 4px;
}
.impulse-acc-tile-num {
    font-size: 11px;
    opacity: 0.35;
    margin-bottom: 8px;
    color: var(--unf-title, #1d2327);
}
/* tiles_number: data-show-num="0" hides the leading 01/02/…. */
.impulse-acc-tiles[data-show-num="0"] .impulse-acc-tile-num { display: none !important; }

/* ── Tile expand: ZOOM (click opens modal) ───────────────────────── */
.impulse-acc-tiles[data-expand="zoom"] .impulse-acc-tiles-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9998;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}
.impulse-acc-tiles[data-expand="zoom"] .impulse-acc-tiles-overlay.active {
    display: block;
    opacity: 1;
}
.impulse-acc-tiles[data-expand="zoom"] .impulse-acc-tile-expanded {
    display: none;
    position: fixed;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    width: min(600px, 85vw);
    max-height: 80vh;
    background: var(--unf-content-bg, #fff);
    border-radius: var(--unf-radius, 8px);
    z-index: 9999;
    overflow-y: auto;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.2);
    opacity: 0;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.35s ease-in-out;
}
.impulse-acc-tiles[data-expand="zoom"] .impulse-acc-tile-expanded.active {
    display: block;
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
}
.impulse-acc-tile-expanded-header {
    padding: 24px 24px 12px;
    font-weight: 600;
    color: var(--unf-accent, #1d2327);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.impulse-acc-tile-expanded-body {
    padding: 0 24px 24px;
    color: var(--unf-content, #555);
    line-height: 1.7;
}
.impulse-acc-tile-close {
    width: 28px; height: 28px;
    border: none;
    background: transparent;
    cursor: pointer;
    color: var(--unf-title, #1d2327);
    opacity: 0.5;
    transition: opacity 0.2s;
}
.impulse-acc-tile-close:hover { opacity: 1; }

/* ── Tile expand: FLIP (click rotates 3D) ────────────────────────── */
.impulse-acc-tiles[data-expand="flip"] .impulse-acc-tile {
    perspective: 800px;
    overflow: visible;
}
.impulse-acc-tiles[data-expand="flip"] .impulse-acc-tile-flipper {
    grid-area: 1 / 1;
    display: grid;
    grid-template: 1fr / 1fr;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    transform-style: preserve-3d;
    -webkit-transform-style: preserve-3d;
}
.impulse-acc-tiles[data-expand="flip"] .impulse-acc-tile.flipped .impulse-acc-tile-flipper {
    transform: rotateY(180deg);
    -webkit-transform: rotateY(180deg);
}
.impulse-acc-tiles[data-expand="flip"] .impulse-acc-tile-front,
.impulse-acc-tiles[data-expand="flip"] .impulse-acc-tile-back {
    grid-area: 1 / 1;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    box-sizing: border-box;
    border-radius: var(--unf-radius, 8px);
    background: var(--unf-content-bg, #fff);
    border: 1px solid var(--unf-border, #e0e0e0);
}
.impulse-acc-tiles[data-expand="flip"] .impulse-acc-tile-front {
    transform: rotateY(0deg) translateZ(0);
    -webkit-transform: rotateY(0deg) translateZ(0);
}
.impulse-acc-tiles[data-expand="flip"] .impulse-acc-tile-back {
    transform: rotateY(180deg);
    -webkit-transform: rotateY(180deg);
    padding: 20px;
    color: var(--unf-content, #555);
    display: flex; flex-direction: column;
    align-items: center; justify-content: flex-start;
    text-align: center;
    overflow-y: auto;
}
.impulse-acc-tile-back-title {
    font-weight: 600;
    color: var(--unf-accent, #1d2327);
    margin-bottom: 8px;
}

/* ── Tile expand: SLIDE (back slides up) ─────────────────────────── */
.impulse-acc-tiles[data-expand="slide"] .impulse-acc-tile-slide {
    grid-area: 1 / 1;
    background: var(--unf-content-bg, #fff);
    transform: translateY(100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 20px;
    box-sizing: border-box;
    color: var(--unf-content, #555);
    display: flex; flex-direction: column;
    align-items: center; justify-content: flex-start;
    text-align: center;
    border-radius: var(--unf-radius, 8px);
    overflow-y: auto;
}
.impulse-acc-tiles[data-expand="slide"] .impulse-acc-tile.slid .impulse-acc-tile-slide {
    transform: translateY(0);
}
.impulse-acc-tile-slide-title {
    font-weight: 600;
    color: var(--unf-accent, #1d2327);
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

/* ── Tile expand: FADE (hover crossfade) ─────────────────────────── */
.impulse-acc-tiles[data-expand="fade"] .impulse-acc-tile-front,
.impulse-acc-tiles[data-expand="fade"] .impulse-acc-tile-back {
    grid-area: 1 / 1;
    border-radius: var(--unf-radius, 8px);
    background: var(--unf-content-bg, #fff);
    transition: opacity 0.8s ease-in-out;
}
.impulse-acc-tiles[data-expand="fade"] .impulse-acc-tile-back {
    opacity: 0;
    padding: 20px;
    box-sizing: border-box;
    color: var(--unf-content, #555);
    display: flex; flex-direction: column;
    align-items: center; justify-content: flex-start;
    text-align: center;
    line-height: 1.7;
    overflow-y: auto;
}
.impulse-acc-tiles[data-expand="fade"] .impulse-acc-tile:hover .impulse-acc-tile-front { opacity: 0; }
.impulse-acc-tiles[data-expand="fade"] .impulse-acc-tile:hover .impulse-acc-tile-back  { opacity: 1; }

/* ── Tile expand: PUSH (hover horizontal slide) ──────────────────── */
.impulse-acc-tiles[data-expand="push"] .impulse-acc-tile-front {
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
.impulse-acc-tiles[data-expand="push"] .impulse-acc-tile-back {
    grid-area: 1 / 1;
    background: var(--unf-content-bg, #fff);
    transform: translateX(100%);
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 20px;
    box-sizing: border-box;
    color: var(--unf-content, #555);
    display: flex; flex-direction: column;
    align-items: center; justify-content: flex-start;
    text-align: center;
    line-height: 1.7;
    border-radius: var(--unf-radius, 8px);
    overflow-y: auto;
}
.impulse-acc-tiles[data-expand="push"] .impulse-acc-tile:hover .impulse-acc-tile-front { transform: translateX(-100%); }
.impulse-acc-tiles[data-expand="push"] .impulse-acc-tile:hover .impulse-acc-tile-back  { transform: translateX(0); }

/* ─────────────────────────────────────────────────────────────────── */
/* SPOTLIGHT MODE                                                      */
/* ─────────────────────────────────────────────────────────────────── */
.impulse-acc-spotlight .impulse-acc-spot-item {
    opacity: 0.35;
    transform: scale(0.98);
    background: transparent;
    filter: blur(var(--unf-blur, 1px));
}
.impulse-acc-spotlight .impulse-acc-spot-item.active {
    opacity: 1 !important;
    transform: scale(1) !important;
    background: var(--unf-content-bg, #fff) !important;
    filter: none !important;
}
.impulse-acc-spotlight .impulse-acc-spot-header { color: var(--unf-title, #1d2327); }
.impulse-acc-spotlight .impulse-acc-spot-item.active .impulse-acc-spot-header {
    color: var(--unf-accent, #1d2327) !important;
}

/* ─────────────────────────────────────────────────────────────────── */
/* Shared font-size + stack-nav colours                                */
/* ─────────────────────────────────────────────────────────────────── */
.impulse-acc-spot-header span:first-child,
.impulse-unfold-card-title          { font-size: var(--unf-t-size, 15px); }

.impulse-acc-spot-body,
.impulse-unfold-card > div:last-child { font-size: var(--unf-c-size, 14px); }

.impulse-acc-stack-num {
    font-size: var(--unf-n-size, 11px);
    color: var(--unf-content, #666);
}
.impulse-acc-stack-num.active        { color: var(--unf-title, #1d2327); }
.impulse-acc-stack-nav button        { color: var(--unf-content, #666); }

/* ═════════════════════════════════════════════════════════════════════ */
/* REVEAL MODE                                                          */
/* Plain display:none/block toggles. Opacity/max-height transitions      */
/* were freezing at 0 in this iframe context — verified live. Snappy     */
/* binary swap is the reliable path; transitions can be re-introduced    */
/* once we identify what's killing them.                                  */
/* ═════════════════════════════════════════════════════════════════════ */

/* ── REVEAL ─────────────────────────────────────────────────────────── */
.impulse-acc-reveal {
    width: var(--unf-width, 100%);
    margin: 0 auto;
}
.impulse-acc-reveal-item {
    border-bottom: 1px solid var(--unf-border, #e0e0e0);
}
.impulse-acc-reveal-title {
    display: block;
    width: 100%;
    padding: 18px 0;
    background: transparent;
    border: none;
    border-left: 2px solid transparent;
    cursor: pointer;
    text-align: left;
    color: var(--unf-title, #1d2327);
    font-size: var(--unf-t-size, 15px);
    font-weight: 500;
    letter-spacing: -0.005em;
    transition: padding-left 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                border-left-color 0.3s ease-in-out,
                color 0.2s ease-in-out;
}
.impulse-acc-reveal-title:hover {
    padding-left: 12px;
    border-left-color: var(--unf-accent, #1d2327);
}
.impulse-acc-reveal-item.open .impulse-acc-reveal-title {
    padding-left: 12px;
    border-left-color: var(--unf-accent, #1d2327);
}
.impulse-acc-reveal-body { display: none; }
.impulse-acc-reveal-item.open .impulse-acc-reveal-body { display: block; }
.impulse-acc-reveal-inner {
    padding: 0 0 var(--unf-pad, 20px) 12px;
    color: var(--unf-content, #555);
    font-size: var(--unf-c-size, 14px);
    line-height: 1.7;
}

/* ── Block alignment (acc_align) ────────────────────────────────────── */
/* When acc_width < 100%, push the whole unfold block left / right or keep
   it centred. Attribute selector (0,2,0 specificity) beats the per-mode
   .impulse-acc-* { margin:0 auto } rules. Works for every mode root since
   they all carry the .impulse-unfold class. */
.impulse-unfold[data-align="left"]   { margin-left: 0 !important;    margin-right: auto !important; }
.impulse-unfold[data-align="center"] { margin-left: auto !important; margin-right: auto !important; }
.impulse-unfold[data-align="right"]  { margin-left: auto !important; margin-right: 0 !important; }