/* ==========================================================================
   ASIAA EXPORTS CRUSHERS — 3D Material Viewer
   Developed by Tynforge AI Solutions

   An additive layer over the existing product page: the photo cards keep their
   images and copy, and gain a "View in 3D" control that opens a full-screen
   material viewer. Everything here is namespaced .a3d-* and is built from the
   variables already declared in site.css — no new palette, no new fonts.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1 · "View in 3D" control on the existing product cards
   Hidden until showcase.js confirms WebGL, so a browser that cannot render it
   never shows a dead button.
   -------------------------------------------------------------------------- */
.p-3d{
  display:none;
  align-items:center;
  gap:8px;
  margin-top:16px;
  padding:9px 16px 9px 13px;
  font-family:var(--sans);
  font-size:.78rem;
  font-weight:600;
  letter-spacing:.02em;
  color:var(--teal-deep);
  background:var(--teal-dim);
  border:1px solid var(--teal-line);
  border-radius:var(--r-pill);
  cursor:pointer;
  transition:background .35s var(--ease),color .35s var(--ease),
             border-color .35s var(--ease),transform .35s var(--ease),
             box-shadow .35s var(--ease);
}
.has-3d .p-3d{display:inline-flex}
.p-3d svg{width:15px;height:15px;fill:currentColor;transition:transform .45s var(--ease)}
.p-3d:hover{
  background:var(--grad-teal);
  border-color:transparent;
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 8px 20px rgba(63,184,184,.28);
}
.p-3d:hover svg{transform:rotate(-18deg)}
.p-3d:focus-visible{outline:2px solid var(--teal);outline-offset:3px}

/* --------------------------------------------------------------------------
   1b · Products hero banner
   Decorative 3D beside the headline. It is eye candy and nothing else: no
   controls, no focus stop, aria-hidden, and removed outright below 768px so the
   primary mobile experience is text and product cards.
   -------------------------------------------------------------------------- */
.page-hero--3d{text-align:left}
.page-hero--3d .page-hero-inner{max-width:1220px}

.hero3d{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,460px);
  gap:clamp(20px,4vw,60px);
  align-items:center;
}
.hero3d__copy{max-width:640px}
.page-hero--3d .crumb{justify-content:flex-start}
.page-hero--3d h1{margin-inline:0}
.page-hero--3d p{margin-inline:0;text-align:left}

.hero3d__stage{
  position:relative;
  width:100%;
  max-width:460px;
  aspect-ratio:1/1;
  margin-left:auto;
  pointer-events:none;          /* never intercepts a tap meant for the page */
}
.hero3d__canvas{display:block;width:100%;height:100%}

/* Between 768 and 960 the two columns crowd each other, so the model drops
   below the copy at a reduced size rather than being squeezed. */
@media (max-width:960px){
  .hero3d{grid-template-columns:minmax(0,1fr);gap:18px;justify-items:center}
  .page-hero--3d{text-align:center}
  .page-hero--3d .crumb{justify-content:center}
  .page-hero--3d p{text-align:center}
  .hero3d__copy{max-width:640px}
  .hero3d__stage{margin:0 auto;max-width:290px}
}
@media (max-width:767px){
  .hero3d__stage{display:none}
}

/* --------------------------------------------------------------------------
   2 · Full-screen viewer
   -------------------------------------------------------------------------- */
.a3d{
  position:fixed;
  inset:0;
  z-index:1400;
  display:none;
  opacity:0;
  background:var(--bg);
  background-image:
    radial-gradient(120% 90% at 50% 8%, #ffffff 0%, var(--bg-alt) 62%, var(--bg-soft) 100%);
  font-family:var(--sans);
  color:var(--text);
  transition:opacity .45s var(--ease-soft);
}
.a3d.is-open{display:block}
.a3d.is-visible{opacity:1}

.a3d__canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:none;cursor:grab}
.a3d__canvas:active{cursor:grabbing}
.a3d__svg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;overflow:visible}
.a3d__svg path{fill:none;stroke:var(--teal-deep);stroke-width:1;opacity:0;transition:opacity .5s var(--ease)}
.a3d__svg circle{fill:var(--teal-deep);opacity:0;transition:opacity .5s var(--ease)}
.a3d__svg .is-on path{opacity:.62}
.a3d__svg .is-on circle{opacity:1}
.a3d__svg .is-on.is-back path{opacity:.14}
.a3d__svg .is-on.is-back circle{opacity:.2}

.a3d__hud{position:absolute;inset:0;pointer-events:none}
.a3d__hud > *{pointer-events:auto}

/* Meta ---------------------------------------------------------------- */
.a3d__meta{
  position:absolute;
  top:clamp(18px,3.4vw,40px);
  left:clamp(18px,5vw,64px);
  max-width:min(58vw,420px);
}
.a3d__eyebrow{
  display:inline-flex;align-items:center;gap:11px;
  font-size:.68rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;
  color:var(--teal-deep);margin-bottom:10px;
}
.a3d__eyebrow::before{content:'';width:24px;height:2px;border-radius:2px;background:var(--grad-teal)}
.a3d__name{
  font-family:var(--serif);
  font-size:clamp(1.35rem,3vw,2.15rem);
  font-weight:700;color:var(--navy);line-height:1.2;letter-spacing:-.01em;
}
.a3d__note{
  margin-top:11px;font-size:.9rem;line-height:1.65;color:var(--text-light);max-width:34ch;
  /* Hard-capped at two lines: the left callout column begins at 25% viewport
     height, so a third line runs underneath the first spec label. */
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}

/* Close ---------------------------------------------------------------- */
.a3d__close{
  position:absolute;
  top:clamp(18px,3.4vw,40px);
  right:clamp(18px,5vw,64px);
  display:inline-flex;align-items:center;gap:9px;
  padding:11px 18px;
  font-family:var(--sans);font-size:.8rem;font-weight:600;letter-spacing:.02em;
  color:var(--text-dark);background:var(--bg);
  border:1.5px solid var(--border-strong);border-radius:var(--r-pill);
  cursor:pointer;box-shadow:var(--shadow-xs);
  transition:color .35s var(--ease),border-color .35s var(--ease),
             box-shadow .35s var(--ease),transform .35s var(--ease);
}
.a3d__close svg{width:13px;height:13px;fill:currentColor}
.a3d__close:hover{color:var(--teal-deep);border-color:var(--teal);transform:translateY(-2px);box-shadow:var(--shadow)}
.a3d__close:focus-visible{outline:2px solid var(--teal);outline-offset:3px}

/* Footer bar ------------------------------------------------------------ */
.a3d__bar{
  position:absolute;left:0;right:0;bottom:clamp(16px,2.6vw,30px);
  display:flex;justify-content:center;align-items:center;gap:14px;flex-wrap:wrap;
  padding:0 18px;pointer-events:none;
}
.a3d__bar > *{pointer-events:auto}
.a3d__toggle{
  display:inline-flex;padding:4px;gap:3px;
  background:var(--bg);border:1px solid var(--border);border-radius:var(--r-pill);
  box-shadow:var(--shadow-xs);
}
.a3d__toggle button{
  font-family:var(--sans);font-size:.76rem;font-weight:600;letter-spacing:.02em;
  color:var(--text-light);background:transparent;border:0;border-radius:var(--r-pill);
  padding:8px 18px;cursor:pointer;
  transition:color .3s var(--ease),background .3s var(--ease);
}
.a3d__toggle button:hover{color:var(--teal-deep)}
.a3d__toggle button[aria-pressed="true"]{background:var(--grad-teal);color:#fff}
.a3d__toggle button:focus-visible{outline:2px solid var(--teal);outline-offset:2px}

.a3d__hint{font-size:.74rem;color:var(--text-light);letter-spacing:.02em}
.a3d__quote{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.78rem;font-weight:600;color:#fff;
  background:var(--grad-teal);border-radius:var(--r-pill);
  padding:11px 22px;text-decoration:none;
  box-shadow:var(--shadow-teal);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.a3d__quote:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(63,184,184,.34)}
.a3d__quote-short{display:none}

/* Spec callouts --------------------------------------------------------- */
.a3d-label{
  position:absolute;
  pointer-events:none;   /* never block a drag that begins over a callout */
  width:var(--a3d-lw,212px);
  background:var(--bg);
  border:1px solid var(--border);
  border-left:3px solid var(--teal);
  border-radius:var(--r-sm);
  padding:11px 14px;
  box-shadow:var(--shadow);
  opacity:0;
  transform:translateY(9px) scale(.97);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
  will-change:opacity,transform;
}
.a3d-label[data-side="right"]{
  border-left:1px solid var(--border);
  border-right:3px solid var(--teal);
  text-align:right;
}
.a3d-label.is-on{opacity:1;transform:none}
.a3d-label__k{
  font-size:.68rem;font-weight:600;letter-spacing:.13em;text-transform:uppercase;
  color:var(--text-light);line-height:1.35;
}
.a3d-label__v{
  font-family:var(--serif);
  font-size:.98rem;font-weight:600;color:var(--navy);
  margin-top:4px;line-height:1.25;font-variant-numeric:tabular-nums;
}

/* Loading --------------------------------------------------------------- */
.a3d__spinner{
  position:absolute;left:50%;top:50%;width:34px;height:34px;margin:-17px 0 0 -17px;
  border:2px solid var(--teal-line);border-top-color:var(--teal);border-radius:50%;
  animation:a3d-spin .8s linear infinite;opacity:0;transition:opacity .3s;
  /* decorative only — at opacity 0 it would still swallow a drag started dead centre */
  pointer-events:none;
}
.a3d.is-loading .a3d__spinner{opacity:1}
@keyframes a3d-spin{to{transform:rotate(360deg)}}

/* Responsive ------------------------------------------------------------ */
@media (max-width:900px){
  .a3d__note{display:none}
}
/* Stacked callout block — right-hand labels align left like the rest. */
@media (max-width:1000px){
  .a3d-label[data-side="right"]{
    text-align:left;border-right:1px solid var(--border);border-left:3px solid var(--teal);
  }
}
@media (max-width:760px){
  .a3d-label{padding:9px 11px;border-radius:6px}
  .a3d-label__k{font-size:.6rem;letter-spacing:.08em}
  .a3d-label__v{font-size:.84rem}
  .a3d__meta{max-width:58vw}
  .a3d__close{padding:9px 14px;font-size:.74rem}
  .a3d__bar{gap:10px;bottom:12px}
  .a3d__hint{display:none}
  .a3d__quote{padding:10px 18px}
}
/* Keep the bottom bar on a single row on the narrowest phones — wrapping it to
   two rows steals the height the particle needs. */
@media (max-width:460px){
  .a3d__quote-long{display:none}
  .a3d__quote-short{display:inline}
  .a3d__toggle button{padding:7px 12px;font-size:.71rem}
  .a3d__quote{padding:9px 15px;font-size:.73rem}
  .a3d__bar{gap:8px}
  .a3d-label{padding:7px 9px}
  .a3d-label__v{font-size:.8rem;margin-top:2px}
}

@media (prefers-reduced-motion:reduce){
  .a3d,.a3d-label{transition-duration:.01ms}
  .a3d__spinner{animation:none}
}