/* Product walkthrough — a soft holographic gallery frame that belongs to the landing page. */
.app-preview{
  position:relative;
  isolation:isolate;
  overflow:hidden;
  padding:clamp(82px,10vw,148px) 0 clamp(72px,9vw,116px);
  background:
    radial-gradient(ellipse at 79% 35%,color-mix(in srgb,var(--holo-cyan) 13%,transparent),transparent 38%),
    radial-gradient(ellipse at 18% 77%,color-mix(in srgb,var(--holo-pink) 10%,transparent),transparent 34%),
    var(--canvas);
  border-top:1px solid var(--line);
}
.app-preview::before{
  content:"";
  position:absolute;
  z-index:-1;
  inset:0;
  pointer-events:none;
  opacity:.2;
  background-image:radial-gradient(color-mix(in srgb,var(--ink) 22%,transparent) .65px,transparent .65px);
  background-size:5px 5px;
  mask-image:linear-gradient(120deg,transparent 12%,#000 52%,transparent 92%);
}
.app-preview__wrap{position:relative}
.app-preview__intro{max-width:650px;margin:0 0 clamp(32px,5vw,60px)}
.app-preview__eyebrow{
  display:flex;align-items:center;gap:10px;margin:0 0 20px;
  color:var(--text-3);font-family:var(--mono);font-size:.68rem;font-weight:500;letter-spacing:.15em;
}
.app-preview__signal{
  width:8px;height:8px;border-radius:50%;
  background:var(--holo-cyan);
  box-shadow:0 0 0 4px color-mix(in srgb,var(--holo-cyan) 16%,transparent);
}
.app-preview__title{display:flex;flex-direction:column;gap:1px;font-size:clamp(2.7rem,6.2vw,5.7rem);line-height:.98;letter-spacing:-.055em}
.app-preview__title b{font-weight:750}
.app-preview__copy{max-width:490px;margin:24px 0 0;color:var(--text-2);font-size:clamp(.98rem,1.25vw,1.08rem);line-height:1.7}
.app-preview__meta{display:flex;align-items:center;gap:13px;margin-top:24px;color:var(--text-3);font-family:var(--mono);font-size:.64rem;letter-spacing:.1em}
.app-preview__meta i{width:3px;height:3px;border-radius:50%;background:var(--holo-blue)}
.app-preview__stage{
  position:relative;
  padding:clamp(14px,2.1vw,28px);
  border:1px solid color-mix(in srgb,var(--line-2) 72%,transparent);
  border-radius:clamp(22px,3vw,38px);
  background:color-mix(in srgb,var(--surface) 72%,transparent);
  box-shadow:0 30px 90px -46px color-mix(in srgb,var(--ink) 40%,transparent),inset 0 1px 0 color-mix(in srgb,var(--surface) 90%,transparent);
  backdrop-filter:blur(22px) saturate(130%);
}
.app-preview__stage-top{display:flex;justify-content:space-between;align-items:center;padding:0 2px 14px;color:var(--text-3);font-family:var(--mono);font-size:.62rem;letter-spacing:.12em}
.app-preview__stage-index{color:var(--text-2)}
.app-preview__video-shell{
  position:relative;
  overflow:hidden;
  isolation:isolate;
  border-radius:clamp(14px,2vw,24px);
  background:#d9dbe8;
  box-shadow:0 12px 42px -25px rgb(9 9 18 / .6),inset 0 0 0 1px rgb(255 255 255 / .24);
}
.app-preview__video-shell::before{
  content:"";
  position:absolute;
  z-index:1;
  inset:0;
  pointer-events:none;
  border:1px solid rgb(255 255 255 / .18);
  border-radius:inherit;
}
.app-preview__glass{
  position:absolute;
  z-index:1;
  top:-28%;right:-18%;
  width:47%;aspect-ratio:1;
  border-radius:50%;
  pointer-events:none;
  background:linear-gradient(135deg,rgb(255 255 255 / .15),rgb(255 255 255 / 0%) 68%);
  filter:blur(1px);
}
.app-preview__video{position:relative;display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:contain;background:#d9dbe8}
.app-preview__controls{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:16px 2px 0}
.app-preview__control-actions{display:flex;gap:9px;flex-wrap:wrap}
.app-preview__control{
  min-height:40px;padding:0 16px;border:1px solid var(--line-2);border-radius:var(--r-pill);
  color:var(--ink);background:color-mix(in srgb,var(--surface) 76%,transparent);
  font-size:.83rem;font-weight:650;transition:transform .2s var(--ease),background .2s,border-color .2s;
}
.app-preview__control:hover{transform:translateY(-2px);background:var(--surface);border-color:var(--holo-blue)}
.app-preview__control--sound{position:absolute;top:12px;right:12px;z-index:2;border-color:var(--line);background:var(--surface);color:var(--ink);box-shadow:0 3px 16px rgb(0 0 0 / .12)}
.app-preview__status{margin:0;color:var(--text-3);font-size:.78rem;text-align:right}
.app-preview__footer{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:27px 3px 0}
.app-preview__footer>p{margin:0;color:var(--text-2);font-size:.93rem;font-weight:600}
.app-preview__links{display:flex;align-items:center;gap:18px}
.app-preview__links .btn{height:44px;padding-inline:20px}
.app-preview__links .ic{font-size:.9rem}
.app-preview__docs{display:inline-flex;align-items:center;gap:7px;min-height:42px;color:var(--text-2);font-size:.88rem;font-weight:650;transition:color .2s,transform .2s var(--ease)}
.app-preview__docs:hover{color:var(--ink);transform:translateY(-1px)}
.app-preview__docs .ic{color:var(--holo-blue)}

@media (min-width:1050px){
  .app-preview__intro{max-width:530px;margin-bottom:38px}
  .app-preview__stage{margin-left:clamp(28px,6vw,94px)}
}
@media (max-width:700px){
  .app-preview{padding:80px 0 68px}
  .app-preview__intro{margin-bottom:28px}
  .app-preview__title{font-size:clamp(2.55rem,12vw,4rem)}
  .app-preview__copy{margin-top:18px}
  .app-preview__stage{padding:12px;border-radius:23px}
  .app-preview__stage-top{font-size:.56rem;padding-bottom:11px}
  .app-preview__video-shell{border-radius:14px}
  .app-preview__controls{align-items:flex-start;flex-direction:column;gap:10px;padding-top:12px}
  .app-preview__status{text-align:left;line-height:1.5}
  .app-preview__footer{align-items:flex-start;flex-direction:column;gap:15px;padding-top:23px}
}
@media (max-width:420px){
  .app-preview__meta{gap:9px;font-size:.56rem}
  .app-preview__control{min-height:38px;padding-inline:13px;font-size:.78rem}
  .app-preview__links{width:100%;gap:16px}
  .app-preview__links .btn{height:42px;padding-inline:16px;font-size:.86rem}
}
@media (prefers-reduced-motion:reduce){
  .app-preview__control,.app-preview__docs{transition:none}
}