/* Sahne: Katalog ve Broşür (hizmet-katalog.html) — yalnızca bu sayfada yüklenir.
   Hero: üç kırımlı broşür 3B açılır/kapanır (rotateY, 9 s döngü); yanda telefonda e-katalog kaydırılır. İmza galerisi çekirdek sd-gallery. */
.sd-fold{--T:10s;position:relative;height:min(58vh,520px);display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.6fr);align-items:center;gap:20px;padding:0 0 8px}
.sd-fold__stage{position:relative;display:grid;place-items:center;perspective:1400px}
.sd-fold__card{position:relative;width:100%;aspect-ratio:3/2;transform-style:preserve-3d;animation:sd-fold-flip var(--T) var(--sd-ease-in-out) infinite;filter:drop-shadow(0 24px 40px rgba(31,34,51,.22))}
.sd-fold__card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border-radius:10px;backface-visibility:hidden}
.sd-fold__b{rotate:y 180deg}
.sd-fold__lbl{position:absolute;left:50%;bottom:-30px;translate:-50% 0;font:600 11px/1 var(--sd-font);letter-spacing:.1em;text-transform:uppercase;color:var(--sd-text-muted)}
.sd-fold__phone{justify-self:center;height:88%;aspect-ratio:9/19;border-radius:12% / 5.7%;background:#0B0C10;padding:2.5%;box-shadow:0 24px 50px rgba(31,34,51,.3),0 0 0 1.5px rgba(255,255,255,.1)}
.sd-fold__scr{position:relative;width:100%;height:100%;border-radius:10% / 4.7%;overflow:clip;background:#F7F5F1}
.sd-fold__scr img{width:100%;height:auto;animation:sd-fold-scroll 12s ease-in-out infinite alternate}
.sd-fold__scr span{position:absolute;left:8%;right:8%;bottom:6%;padding:8px 10px;border-radius:8px;background:rgba(21,23,36,.85);color:#fff;font:600 10px/1 var(--sd-font);text-align:center}
.sd-fold__scr i{position:absolute;left:50%;top:7%;translate:-50% 0;width:30%;height:9px;border-radius:5px;background:#0B0C10}
.sd-fold__chip{position:absolute;z-index:3;background:#fff;box-shadow:var(--sd-shadow-card)}.sd-fold__chip svg{width:14px;height:14px;color:#1A9E5C}
.sd-fold__chip--1{left:0;top:8%}.sd-fold__chip--2{right:0;bottom:4%}
.sd-fold:not(.in) *{animation-play-state:paused}
@keyframes sd-fold-flip{0%,38%{rotate:y 0deg}50%,88%{rotate:y 180deg}100%{rotate:y 360deg}}
@keyframes sd-fold-scroll{0%,15%{translate:0 0}85%,100%{translate:0 calc(-100% + 380px)}}
@media (max-width:720px){.sd-fold{height:440px;grid-template-columns:minmax(0,1fr)}.sd-fold__phone{display:none}.sd-fold__chip--2{bottom:0}}