/* Zenzo AI — homepage sections v3
   1. Ecosystem: story flow (desktop/tablet) + stacking cards (phones)
   2. Use cases: expanding panels with photo thumbnails (desktop) + swipe carousel (phones/tablets)
   3. Integrations: logo marquee wall (Glide-style)                                              */

/* ═══════════ 1 · ECOSYSTEM ═══════════ */
.ef-q { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 18px; margin-bottom: 28px; }
.ef-q-k { font-size: 11px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--t4); }
.ef-q .e2-q { flex: 1; max-width: 560px; background: #fff; border-radius: 14px; font-size: 16px; box-shadow: 0 18px 40px -26px rgba(194,87,10,.45); }
.ef-flow { list-style: none; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 22px; }
.ef-step { position: relative; display: flex; flex-direction: column; border: 1px solid var(--bdr); border-radius: 24px; background: #fff; transition: border-color .2s, box-shadow .2s, transform .2s var(--ease); }
.ef-step:hover { border-color: #FDBA74; box-shadow: 0 26px 50px -34px rgba(194,87,10,.5); transform: translateY(-3px); }
.ef-step:not(:last-child)::after { content: ''; position: absolute; z-index: 3; top: 96px; right: -19px; width: 16px; height: 16px; border-radius: 50%; background: var(--or); box-shadow: 0 0 0 4px #fff, 0 0 0 5px var(--or-b); }
.ef-photo { position: relative; margin: 8px; border-radius: 18px; padding: 10px; aspect-ratio: 16 / 11; overflow: hidden; }
.ef-photo img { width: 100%; height: 100%; object-fit: cover; border-radius: 12px; display: block; }
.ef-badge { position: absolute; left: 18px; bottom: 18px; display: inline-flex; align-items: center; gap: 7px; padding: 5px 10px 5px 5px; border-radius: 999px; background: #fff; font-size: 12.5px; font-weight: 500; color: var(--t1); box-shadow: 0 10px 24px -12px rgba(60,20,0,.5); }
.ef-badge svg { width: 22px; height: 22px; }
.ef-photo .e2-tag { top: 16px; right: 16px; }
.ef-body { padding: 8px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.ef-n { display: flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 600; color: var(--or-dk); }
.ef-body h3 { margin-top: 10px; font-size: 21px; font-weight: 500; letter-spacing: -.03em; line-height: 1.25; color: var(--t1); }
.ef-body > p { margin-top: 6px; font-size: 14.5px; line-height: 1.55; color: var(--t3); }
.ef-out { margin: 16px 0 18px; padding: 12px; border-radius: 12px; background: var(--bg-s); border: 1px solid var(--bdr-l); font-size: 12.5px; }
.ef-out .e2-bars { margin-top: 0; }
.ef-out .e2-cite { margin-top: 0; padding-top: 0; border: 0; }
.ef-alert { display: flex; gap: 10px; align-items: flex-start; }
.ef-alert b { display: block; color: var(--t1); font-weight: 600; font-size: 13px; }
.ef-alert small { color: var(--t3); }
.ef-chain { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.ef-chain span { padding: 4px 9px; border-radius: 999px; background: #fff; border: 1px dashed #FDBA74; color: var(--t2); font-weight: 500; }
.ef-chain svg { width: 12px; height: 12px; color: var(--or-dk); }
.ef-body .e2-more { margin-top: auto; align-self: flex-start; font-size: 14px; }
.ef-step.is-concept { border-style: dashed; }
.eco3 .eco-layer { margin-top: 22px; gap: 16px 24px; flex-wrap: wrap; }
.eco3 .eco-layer span { flex: 1; min-width: 240px; }
.ef-go { display: inline-flex; align-items: center; gap: 8px; color: #fff; font-size: 14px; font-weight: 500; border-bottom: 1px solid rgba(255,255,255,.35); padding-bottom: 2px; white-space: nowrap; }
.ef-go svg { width: 13px; height: 13px; transition: transform .15s; }
.ef-go:hover { border-color: var(--or); }
.ef-go:hover svg { transform: translateX(3px); }
.mo .rv3 { opacity: 0; transform: translateY(22px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.mo .rv3.in { opacity: 1; transform: none; }
.mo .ef-step.rv3:nth-child(2) { transition-delay: .08s; }
.mo .ef-step.rv3:nth-child(3) { transition-delay: .16s; }
.mo .ef-step.rv3:nth-child(4) { transition-delay: .24s; }
.mo .ef-step.rv3.in:hover { transition-delay: 0s; }

/* Stacking cards: phones only */
.es { display: none; }
.es-card { position: sticky; top: calc(var(--nav-h, 64px) + 10px + var(--i) * 12px); background: #fff; border: 1px solid var(--bdr); border-radius: 24px; padding: 18px; box-shadow: 0 -18px 36px -26px rgba(60,20,0,.35), 0 20px 40px -32px rgba(60,20,0,.3); transform-origin: 50% 0; will-change: transform; }
.es-card:nth-child(2) { background: #FFFDF8; }
.es-card:nth-child(3) { background: #FFFAF5; }
.es-card:nth-child(4) { background: #FBF7F3; }
.es-top { display: flex; align-items: center; gap: 10px; }
.es-ic svg { width: 30px; height: 30px; }
.es-top b { font-size: 15px; font-weight: 500; color: var(--t1); white-space: nowrap; }
.es-top .badge { flex-shrink: 0; }
.es-n { margin-left: auto; font-size: 12px; color: var(--t4); font-variant-numeric: tabular-nums; white-space: nowrap; }
.es-card h3 { margin-top: 12px; font-size: 22px; font-weight: 400; line-height: 1.15; letter-spacing: -.04em; color: var(--t1); }
.es-card h3 em { font-style: normal; color: var(--or); }
.es-stage.e2-stage { margin-top: 14px; aspect-ratio: 1.12; border-radius: 18px; }
.es-ctas { display: flex; align-items: center; gap: 12px 18px; margin-top: 16px; flex-wrap: wrap; }
.es-ctas .btn-dark { height: 48px; padding: 0 20px; font-size: 14px; }
.es-ctas .e2-more { font-size: 14px; }

/* ═══════════ 2 · USE CASES ═══════════ */
.uc3-all { display: inline-flex; align-items: center; gap: 8px; margin-top: 12px; font-size: 15px; color: var(--t1); border-bottom: 1px solid rgba(15,14,13,.3); padding-bottom: 2px; }
.uc3-all svg { width: 14px; height: 14px; transition: transform .15s; }
.uc3-all:hover { color: var(--or-dk); border-color: var(--or); }
.uc3-all:hover svg { transform: translateX(3px); }

.ups { display: flex; gap: 8px; height: 440px; }
.up { position: relative; flex: 0 0 64px; overflow: hidden; border-radius: 22px; border: 1px solid var(--bdr); background: #fff; transition: flex .6s var(--ease), border-color .3s; }
.up.on { flex: 1 1 auto; border-color: #FDBA74; background: linear-gradient(160deg, #FFF4ED, #fff 55%); }
.up-h { position: absolute; inset: 0; z-index: 2; isolation: isolate; display: flex; flex-direction: column; align-items: center; gap: 14px; padding: 14px 0; color: #fff; overflow: hidden; transition: opacity .3s; }
.up-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; transition: transform .6s var(--ease); }
.up-h::after { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(194,65,12,.55) 0%, rgba(26,10,0,.55) 45%, rgba(26,10,0,.85) 100%); transition: background .3s; }
.up:not(.on) .up-h:hover .up-bg { transform: scale(1.06); }
.up:not(.on) .up-h:hover::after { background: linear-gradient(180deg, rgba(234,88,12,.6) 0%, rgba(26,10,0,.45) 45%, rgba(26,10,0,.8) 100%); }
.up-ic { width: 36px; height: 36px; flex-shrink: 0; border-radius: 11px; display: inline-flex; align-items: center; justify-content: center; background: rgba(255,255,255,.18); border: 1px solid rgba(255,255,255,.35); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
.up-ic svg { width: 18px; height: 18px; }
.up-h b { writing-mode: vertical-rl; transform: rotate(180deg); font-size: 15px; font-weight: 500; letter-spacing: .01em; white-space: nowrap; text-shadow: 0 1px 8px rgba(0,0,0,.35); }
.up.on .up-h { opacity: 0; pointer-events: none; }
.up-c { position: absolute; top: 0; bottom: 0; left: 0; width: max(700px, 100%); display: grid; grid-template-columns: minmax(0, 1fr) 196px; grid-template-rows: minmax(0, 1fr); gap: 28px; padding: 28px; opacity: 0; transform: translateX(14px); transition: opacity .3s, transform .3s; pointer-events: none; }
.up.on .up-c { opacity: 1; transform: none; transition-delay: .25s; pointer-events: auto; }
.up-txt { display: flex; flex-direction: column; min-width: 0; }
.up-role, .up-k { font-size: 11px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--t4); }
.up-q { margin-top: 10px; font-size: 22px; line-height: 1.28; letter-spacing: -.03em; color: var(--t1); }
.up-txt ul { list-style: none; margin: 14px 0 16px; display: grid; gap: 6px; }
.up-txt li, .uk-body li { display: flex; gap: 9px; font-size: 13.5px; line-height: 1.5; color: var(--t2); }
.up-txt li svg, .uk-body li svg { width: 14px; height: 14px; margin-top: 3px; flex-shrink: 0; color: var(--or); }
.up-k { margin-bottom: 8px; }
.up-txt { height: 100%; }
.up-txt .uc-src { gap: 6px; }
.up-txt .uc-src span { font-size: 12.5px; padding: 3px 10px 3px 4px; gap: 6px; }
.up-txt .uc-src i { width: 18px; height: 18px; border-radius: 5px; }
.up-txt .uc-src i img { width: 11px; height: 11px; }
.up-txt .uc-src i.f img { width: 13px; height: 13px; }
.up-foot { flex-wrap: nowrap; }
.up-out { flex-wrap: nowrap; white-space: nowrap; min-width: 0; }
.up-foot .e2-more { white-space: nowrap; }
.up-foot { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--bdr-l); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 16px; }
.up-out { display: flex; flex-wrap: wrap; gap: 12px; font-size: 13px; color: var(--t2); }
.up-out span { display: inline-flex; align-items: center; gap: 6px; }
.up-out svg { width: 14px; height: 14px; color: var(--or-dk); }
.up-foot .e2-more { font-size: 14px; }
.up-thumb { position: relative; width: 196px; height: 100%; align-self: stretch; border-radius: 18px; overflow: hidden; box-shadow: 0 24px 48px -30px rgba(60,20,0,.55); }
.up-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.up-chip { position: absolute; left: 12px; bottom: 12px; display: inline-flex; align-items: center; gap: 7px; padding: 6px 12px 6px 7px; border-radius: 999px; background: rgba(255,255,255,.95); font-size: 12.5px; font-weight: 500; color: var(--t1); box-shadow: 0 10px 24px -12px rgba(60,20,0,.5); }
.up-chip svg { width: 20px; height: 20px; padding: 4px; border-radius: 6px; background: var(--or-l); color: var(--or-dk); }

/* Carousel: phones and tablets */
.uk { display: none; }
.uk-track { display: flex; gap: 12px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; overscroll-behavior-x: contain; }
.uk-track::-webkit-scrollbar { display: none; }
.uk-card { flex: 0 0 82%; max-width: 380px; scroll-snap-align: start; display: flex; flex-direction: column; border-radius: 22px; background: #fff; border: 1px solid var(--bdr); overflow: hidden; }
.uk-img { position: relative; aspect-ratio: 16 / 9; overflow: hidden; }
.uk-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.uk-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 45%, rgba(26,10,0,.55)); }
.uk-tag { position: absolute; z-index: 1; left: 12px; bottom: 12px; display: inline-flex; align-items: center; gap: 7px; padding: 6px 12px 6px 7px; border-radius: 999px; background: #fff; font-size: 13px; font-weight: 500; color: var(--t1); }
.uk-tag svg { width: 20px; height: 20px; padding: 4px; border-radius: 6px; background: var(--or-l); color: var(--or-dk); }
.uk-body { padding: 16px 18px 18px; display: flex; flex-direction: column; flex: 1; }
.uk-q { font-size: 18px; line-height: 1.3; letter-spacing: -.025em; color: var(--t1); }
.uk-body ul { list-style: none; margin: 12px 0 14px; display: grid; gap: 7px; }
.uk-logos { gap: 4px; flex-wrap: nowrap; margin-top: auto; }
.uk-logos span.lg { padding: 0; border: 0; background: none; }
.uk-logos span.lg i { width: 26px; height: 26px; border-radius: 7px; }
.uk-logos span.lg i img { width: 14px; height: 14px; }
.uk-logos span.lg i.f img { width: 17px; height: 17px; }
.uk-body .e2-more { margin-top: 14px; align-self: flex-start; font-size: 14px; }
.uk-dots { display: flex; justify-content: center; gap: 6px; margin-top: 16px; }
.uk-dots i { width: 6px; height: 6px; border-radius: 3px; background: var(--t5); transition: width .25s var(--ease), background .25s; }
.uk-dots i.on { width: 20px; background: var(--or); }

/* ═══════════ 3 · INTEGRATIONS ═══════════ */
.ig-head { max-width: 760px; margin: 0 auto; text-align: center; }
.ig-head .sec-h2 { margin-left: auto; margin-right: auto; }
.ig-head p { margin: 18px auto 0; max-width: 600px; font-size: 17px; line-height: 1.6; color: var(--t3); }
.intg3 .intg-box { overflow: hidden; }
.ig-wall { margin: 0 calc(50% - 50vw); width: 100vw; display: grid; gap: 14px; overflow: hidden; padding: 6px 0;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.ig-row { display: flex; width: max-content; }
.ig-row:nth-child(2) { margin-left: -46px; }
.ig-belt { display: flex; gap: 14px; padding-right: 14px; }
.mo .ig-belt { animation: igMove 55s linear infinite; }
.mo .ig-row.rev .ig-belt { animation-direction: reverse; animation-duration: 62s; }
.mo .ig-row:nth-child(3) .ig-belt { animation-duration: 70s; }
.ig-wall:hover .ig-belt { animation-play-state: paused; }
@keyframes igMove { from { transform: translateX(0); } to { transform: translateX(-100%); } }
.ig-t { width: 76px; height: 76px; flex-shrink: 0; border-radius: 20px; background: #fff; border: 1px solid var(--bdr); box-shadow: 0 1px 2px rgba(28,25,23,.04), 0 14px 28px -22px rgba(60,20,0,.35); display: flex; align-items: center; justify-content: center; transition: transform .2s var(--ease), border-color .2s; }
.ig-t:hover { transform: translateY(-3px); border-color: #FDBA74; }
.ig-t i { width: 44px; height: 44px; border-radius: 12px; display: flex; align-items: center; justify-content: center; background: var(--c, #fff); font-style: normal; font-size: 18px; font-weight: 700; color: #fff; }
.ig-t i img { width: 24px; height: 24px; }
.ig-t i.m img { filter: brightness(0) invert(1); }
.ig-t i.f { background: transparent; }
.ig-t i.f img { width: 34px; height: 34px; }
.ig-t i.g { background: #F5F4F2; color: var(--t2); border: 1px solid var(--bdr); }
.ig-t i.g svg { width: 20px; height: 20px; }
.ig-try { margin-top: 36px; display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-start; gap: 12px; }
.ig-prompt { display: inline-flex; align-items: center; gap: 12px; padding: 8px 20px 8px 8px; border-radius: 999px; background: #fff; border: 1px solid #FED7AA; box-shadow: 0 18px 40px -26px rgba(194,87,10,.45); }
.ig-logos { display: inline-flex; }
.ig-logos i { width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center; background: var(--c, #fff); box-shadow: 0 0 0 3px #fff; }
.ig-logos i + i { margin-left: -8px; }
.ig-logos i img { width: 18px; height: 18px; filter: brightness(0) invert(1); }
.ig-ptext { font-size: 15.5px; color: var(--t1); }
.ig-foot { margin-top: 28px; padding-top: 20px; border-top: 1px solid rgba(234,88,12,.15); display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 6px 16px; font-size: 14px; color: var(--t3); }
.ig-foot b { color: var(--t1); font-weight: 600; }
.ig-foot a { display: inline-flex; align-items: center; gap: 6px; color: var(--t1); border-bottom: 1px solid rgba(15,14,13,.3); padding-bottom: 1px; }
.ig-foot a svg { width: 13px; height: 13px; }
.ig-foot a:hover { color: var(--or-dk); border-color: var(--or); }
html:not(.mo) .ig-wall { -webkit-mask-image: none; mask-image: none; }

/* ═══════════ Responsive ═══════════ */
@media (max-width: 1100px) {
  .ef-flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ef-step:nth-child(2)::after { display: none; }
}
@media (max-width: 900px) {
  .ups { display: none; }
  .uk { display: block; margin: 0 calc(-1 * var(--G, 24px)); }
  .uk-track { padding: 4px var(--G, 24px) 8px; scroll-padding-left: var(--G, 24px); }
}
@media (max-width: 768px) {
  .ef { display: none; }
  .es { display: grid; gap: 18px; }
  .eco3 .eco-layer { margin-top: 18px; }
  .ig-wall { gap: 10px; }
  .ig-belt { gap: 10px; padding-right: 10px; }
  .ig-t { width: 60px; height: 60px; border-radius: 16px; }
  .ig-t i { width: 36px; height: 36px; border-radius: 10px; font-size: 15px; }
  .ig-t i img { width: 20px; height: 20px; }
  .ig-t i.f img { width: 28px; height: 28px; }
  .ig-head p { font-size: 15px; }
  .ig-try { margin-top: 28px; }
  .ig-prompt { border-radius: 18px; padding: 10px 14px 10px 10px; }
  .ig-ptext { font-size: 14px; }
  .ig-try .btn-dark { width: 100%; justify-content: center; }
}
@media (prefers-reduced-motion: reduce) {
  .es-card { transform: none !important; filter: none !important; }
}

/* Integrations: app name on hover (the wall pauses while hovered) */
.ig-row { position: relative; }
.ig-row:hover { z-index: 3; }
.ig-t { position: relative; cursor: default; }
.ig-t::after { content: attr(data-n); position: absolute; left: 50%; bottom: calc(100% + 8px); transform: translate(-50%, 4px); padding: 6px 11px; border-radius: 8px; background: #1C1917; color: #fff; font-size: 12.5px; font-weight: 500; line-height: 1.2; white-space: nowrap; pointer-events: none; opacity: 0; transition: opacity .15s, transform .15s var(--ease); box-shadow: 0 8px 20px -8px rgba(0,0,0,.35); z-index: 5; }
.ig-t::before { content: ""; position: absolute; left: 50%; bottom: calc(100% + 3px); width: 10px; height: 10px; background: #1C1917; transform: translate(-50%, 4px) rotate(45deg); border-radius: 2px; opacity: 0; transition: opacity .15s, transform .15s var(--ease); pointer-events: none; z-index: 4; }
/* first row: show the label below so the wall's edge never clips it */
.ig-row:first-child .ig-t::after { bottom: auto; top: calc(100% + 8px); transform: translate(-50%, -4px); }
.ig-row:first-child .ig-t::before { bottom: auto; top: calc(100% + 3px); transform: translate(-50%, -4px) rotate(45deg); }
.ig-t:hover::after, .ig-t:hover::before, .ig-t.tip::after, .ig-t.tip::before { opacity: 1; transform: translate(-50%, 0); }
.ig-t:hover::before, .ig-t.tip::before { transform: translate(-50%, 0) rotate(45deg); }
.ig-t:hover, .ig-t.tip { border-color: #FDBA74; }
.ig-wall:has(.tip) .ig-belt { animation-play-state: paused; }