/* ============================================================
   SEEMOTIONS — LANDING HERO CARD CAROUSEL V1.5

   Scope: the Landing Hero band only (`/` → explore-v61-production.html).
   Flat, reference-style horizontal card rail. The site header and every
   surface below the Hero remain owned by their existing layers.

   Performance contract:
   - card movement is compositor-only translate3d + opacity;
   - no backdrop-filter, animated blur, scale, rotate, or layout animation;
   - only visible cards receive will-change from the runtime;
   - edge fades are static gradients and never animate.
   ============================================================ */

:root{
  --smhc-violet:var(--sm-ref-violet,#968DED);
  --smhc-violet-mid:var(--sm-ref-violet-mid,#887CEB);
  --smhc-violet-deep:var(--sm-ref-violet-deep,#7A6BE5);
  --smhc-violet-dark:var(--sm-ref-violet-dark,#453B8E);
  --smhc-ease:cubic-bezier(.22,.75,.24,1);
  --smhc-radius:24px;
  --smhc-card-w:clamp(276px,21vw,360px);
  --smhc-gap:16px;
}

body[data-smhc="on"] .hero-shot-stack{display:none!important}
body[data-smhc="on"] .hero{height:auto;min-height:0}
body[data-smhc="on"] .hero-layout{
  height:auto;
  min-height:0;
  display:grid;
  grid-template-columns:1fr;
  grid-template-rows:auto auto;
  align-items:start;
  gap:clamp(12px,1.8vh,22px);
  padding-top:clamp(94px,10.4vh,124px);
  padding-bottom:clamp(58px,6.8vh,92px);
}
body[data-smhc="on"] .hero-copy{max-width:min(760px,74%);padding-bottom:0}
body[data-smhc="on"] .hero h1{font-size:clamp(42px,4.6vw,78px);line-height:.88}
body[data-smhc="on"] .hero-copy>p{margin-top:14px;font-size:13.5px;max-width:480px}
body[data-smhc="on"] .hero-actions{margin-top:18px}
body[data-smhc="on"] .hero-status{display:none}
body[data-smhc="on"] .hero-bottom{bottom:16px}
body[data-smhc="on"] .hero-media-layer>.hero-primary-ready{animation:none!important}
body[data-smhc="on"] .hero-media-layer img,
body[data-smhc="on"] .hero-media-layer video{filter:none}
body[data-smhc="on"] .hero-dots{animation:none!important;inset:6% 46% 46% 0;opacity:.2}
body[data-smhc="on"] .hero-vignette{
  background:linear-gradient(180deg,
    color-mix(in srgb,var(--bg) 60%,transparent) 0%,
    color-mix(in srgb,var(--bg) 44%,transparent) 18%,
    color-mix(in srgb,var(--bg) 56%,transparent) 30%,
    color-mix(in srgb,var(--bg) 70%,transparent) 40%,
    color-mix(in srgb,var(--bg) 82%,transparent) 49%,
    color-mix(in srgb,var(--bg) 90%,transparent) 57%,
    color-mix(in srgb,var(--bg) 96%,transparent) 66%,
    color-mix(in srgb,var(--bg) 99%,transparent) 76%,
    var(--bg) 88%,var(--bg) 100%);
}
body[data-smhc="on"] .hero-vignette:after{
  background:linear-gradient(96deg,
    color-mix(in srgb,var(--bg) 92%,transparent) 0%,
    color-mix(in srgb,var(--bg) 62%,transparent) 30%,
    transparent 58%);
}

.smhc{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-rows:auto 1fr;
  row-gap:clamp(10px,1.6vh,18px);
  min-width:0;
}
.smhc-head{display:flex;align-items:center;justify-content:space-between;gap:16px}
.smhc-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:11.5px;font-weight:650;color:var(--text)}
.smhc-dot{width:7px;height:7px;border-radius:50%;flex:0 0 7px;background:var(--smhc-violet);box-shadow:0 0 0 4px color-mix(in srgb,var(--smhc-violet) 22%,transparent)}
.smhc-tools{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.smhc-counter{
  height:34px;padding:0 12px;border-radius:12px;display:inline-flex;align-items:center;
  border:1px solid var(--line);background:color-mix(in srgb,var(--bg-elev) 94%,transparent);
  font-size:9px;letter-spacing:.1em;color:var(--text-soft);font-variant-numeric:tabular-nums;
}
.smhc-nav{
  width:38px;height:38px;border-radius:12px;border:1px solid var(--line);
  background:color-mix(in srgb,var(--bg-elev) 94%,transparent);display:grid;place-items:center;cursor:pointer;
  color:var(--text-soft);font-size:13px;line-height:1;
  transition:transform .18s var(--smhc-ease),color .18s var(--smhc-ease),border-color .18s var(--smhc-ease),background .18s var(--smhc-ease);
}
.smhc-nav:hover{color:var(--text);border-color:var(--line-strong);background:var(--bg-elev);transform:translateY(-1px)}
.smhc-nav:active{transform:translateY(0) scale(.97)}

.smhc-stage{
  position:relative;
  min-height:0;
  height:clamp(420px,39vw,570px);
  overflow:visible;
  touch-action:pan-y;
  cursor:grab;
  user-select:none;
  -webkit-user-select:none;
}
.smhc-stage.is-dragging{cursor:grabbing}
.smhc-stage::before,
.smhc-stage::after{
  content:"";
  position:absolute;
  top:-8px;
  bottom:0;
  width:clamp(42px,6.5vw,108px);
  z-index:70;
  pointer-events:none;
}
.smhc-stage::before{
  left:calc((100vw - 100%)/-2);
  background:linear-gradient(90deg,var(--bg) 8%,color-mix(in srgb,var(--bg) 78%,transparent) 42%,transparent 100%);
}
.smhc-stage::after{
  right:calc((100vw - 100%)/-2);
  background:linear-gradient(270deg,var(--bg) 8%,color-mix(in srgb,var(--bg) 78%,transparent) 42%,transparent 100%);
}

.smhc-card{
  position:absolute;
  left:50%;
  top:47%;
  width:var(--smhc-card-w);
  aspect-ratio:79/100;
  --smhc-x:0px;
  --smhc-y:0px;
  transform:translate3d(calc(-50% + var(--smhc-x)),calc(-50% + var(--smhc-y)),0);
  transition:transform .54s var(--smhc-ease),opacity .34s ease;
  z-index:1;
}
.smhc-stage.is-dragging .smhc-card{transition:none}
.smhc-card[data-visible="false"]{pointer-events:none}
.smhc[data-ready="false"] .smhc-card{opacity:0}
.smhc[data-ready="true"] .smhc-card{transition-delay:calc(var(--smhc-i,0) * 28ms)}
.smhc[data-ready="true"][data-settled="true"] .smhc-card{transition-delay:0s}

.smhc-face{
  position:absolute;
  inset:0;
  display:block;
  border-radius:var(--smhc-radius);
  overflow:hidden;
  background:var(--surface-2);
  border:1px solid color-mix(in srgb,var(--text) 11%,transparent);
  box-shadow:0 22px 54px rgba(0,0,0,.28);
  isolation:isolate;
  contain:paint;
  transition:border-color .22s ease;
}
.smhc-face img,.smhc-face video{position:absolute;inset:0;z-index:0;width:100%;height:100%;object-fit:cover;display:block}
.smhc-art{
  position:absolute;inset:0;z-index:0;
  background:radial-gradient(circle at 24% 16%,color-mix(in srgb,var(--smhc-violet) 36%,transparent),transparent 46%),
    radial-gradient(circle at 84% 82%,color-mix(in srgb,var(--smhc-violet-dark) 52%,transparent),transparent 54%),
    linear-gradient(155deg,#14121C 0%,#0C0B11 62%,#100E18 100%);
}
.smhc-shade{position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(to top,rgba(9,8,13,.17),transparent 38%,rgba(9,8,13,.08))}

.smhc-caption{
  position:absolute;
  left:1px;
  top:calc(100% + 16px);
  width:calc(100% + 32px);
  z-index:4;
  pointer-events:none;
  visibility:hidden;
  opacity:0;
  transform:translate3d(0,5px,0);
  transition:opacity .24s ease .08s,transform .32s var(--smhc-ease) .08s,visibility 0s linear .32s;
}
.smhc-caption strong{
  display:block;
  font-family:var(--display);
  font-weight:730;
  font-optical-sizing:auto;
  letter-spacing:-.035em;
  font-size:clamp(20px,1.75vw,27px);
  line-height:1.05;
  color:var(--text);
}
.smhc-caption span{display:block;margin-top:4px;max-width:340px;font-size:11px;line-height:1.4;color:var(--text-soft)}
.smhc-card[data-active="true"] .smhc-caption{
  visibility:visible;
  opacity:1;
  transform:none;
  transition:opacity .24s ease .08s,transform .32s var(--smhc-ease) .08s,visibility 0s;
}
.smhc-card[data-active="true"] .smhc-face{border-color:color-mix(in srgb,var(--text) 20%,transparent)}
.smhc-card[data-active="false"] .smhc-face{cursor:pointer}
.smhc-card[data-active="false"][data-visible="true"]:hover .smhc-face{border-color:color-mix(in srgb,var(--smhc-violet) 34%,transparent)}
.smhc-face:focus-visible{outline:2px solid var(--smhc-violet);outline-offset:4px}

html[data-theme="day"] .smhc-face{box-shadow:0 18px 44px rgba(69,59,142,.14)}

body[data-smhc-tier="lite"] .smhc-card{transition:transform .44s var(--smhc-ease),opacity .26s ease}
body[data-smhc-tier="lite"] .smhc[data-ready="true"] .smhc-card{transition-delay:calc(var(--smhc-i,0) * 18ms)}
body[data-smhc-tier="lite"] .smhc-face{box-shadow:0 14px 34px rgba(0,0,0,.27)}
body[data-smhc-tier="lite"] .hero-dots{display:none}

@media(max-width:1100px){
  :root{--smhc-card-w:clamp(270px,27vw,330px)}
  body[data-smhc="on"] .hero-copy{max-width:100%}
  .smhc-stage{height:clamp(400px,43vw,510px)}
}

@media(max-width:820px){
  :root{--smhc-card-w:72vw;--smhc-gap:12px;--smhc-radius:22px}
  body[data-smhc="on"] .hero-layout{padding-top:106px;padding-bottom:82px;gap:20px}
  body[data-smhc="on"] .hero h1{font-size:clamp(40px,10.4vw,72px);line-height:.92}
  body[data-smhc="on"] .hero-copy>p{font-size:12.5px;margin-top:12px}
  body[data-smhc="on"] .hero-bottom{display:none}
  .smhc-nav{width:42px;height:42px}
  .smhc-counter{display:none}
  .smhc-stage{height:clamp(360px,98vw,440px)}
  .smhc-card{top:46%}
  .smhc-stage::before,.smhc-stage::after{width:30px;opacity:.78}
  .smhc-caption{width:calc(100% + 22px)}
  .smhc-caption strong{font-size:19px}
  .smhc-caption span{font-size:10.5px;max-width:min(330px,76vw)}
}

@media(max-width:480px){
  :root{--smhc-card-w:74vw}
  .smhc-stage{height:clamp(345px,103vw,420px)}
  .smhc-stage::before,.smhc-stage::after{width:24px;opacity:.72}
}

@media(prefers-reduced-motion:reduce){
  .smhc-card,
  .smhc-face,
  .smhc-caption{transition:none!important;animation:none!important}
  .smhc[data-ready="false"] .smhc-card{opacity:1}
}