/* =====================================================================
   SERRES DRIVE — home.css
   DARK "tumble scrollytelling" home experience, adapted from the
   "Floating Chair" reference (oak atelier) and re-themed to Serres:
   near-black canvas, silver/chrome accent, Barlow Condensed + DM Sans.

   The GT3 RS bobs and tumbles end-over-end (fixed, centre screen) while
   the INTRO headline, the COLLECTION list and the OUTRO scroll past it;
   the outro reveals line-by-line. Scoped to .home-exp so the rest of the
   site is untouched.

   Fail-safe: every section holds real text (nothing hidden by default);
   if JS/WebGL never run the sections read as clean dark panels + the GT3
   poster, and the outro lines stay visible.
   ===================================================================== */

.home-exp{
  --oa-mute:#55565c;          /* muted "archive" grey */
  --oa-mute-2:#787982;
  background:var(--bg);
}

/* ---------- Lenis smooth-scroll plumbing ----------
   REQUIRED: without this, the site's `html{scroll-behavior:smooth}` fights
   Lenis and wheel/trackpad scrolling silently stops working (only dragging
   the scrollbar works). This override lets Lenis own the scroll. */
html.lenis, html.lenis body { height: auto; }
html.lenis, .lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-smooth [data-lenis-prevent] { overscroll-behavior: contain; }
.lenis.lenis-stopped { overflow: clip; }
.lenis.lenis-smooth iframe { pointer-events: none; }

/* fixed dark backdrop (subtle chrome glow, no grid) */
.home-exp .oa-backdrop{position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(120% 85% at 50% -10%, rgba(200,206,216,.10), transparent 55%),
    radial-gradient(90% 80% at 85% 108%, rgba(90,120,180,.07), transparent 60%),
    var(--bg);
}

/* fixed WebGL stage — the GT3 RS tumbles here, in front of the copy */
.home-exp .sd-model{position:fixed;inset:0;height:100svh;width:100%;z-index:3;
  pointer-events:none;opacity:0;transition:opacity .8s var(--ease)}
.home-exp .sd-model.is-live{opacity:1}
.home-exp .sd-model canvas{display:block;width:100%!important;height:100%!important}

/* static GT3 poster (before/without WebGL) — sits BEHIND the copy so the
   headline stays readable in the reduced-motion / no-JS fail-safe */
.home-exp .sd-fallback{position:fixed;inset:0;z-index:1;pointer-events:none;
  background:center/contain no-repeat url("../assets/img/cars/renders/gt3.jpeg");
  opacity:.9;transition:opacity .6s var(--ease)}
/* once the live car has loaded, the poster stays hidden (incl. the outro fade) */
.home-exp.car-loaded .sd-fallback{opacity:0}

/* the copy sits above the backdrop + poster, below the live car canvas */
.home-exp .oa-exp{position:relative;z-index:2;color:var(--text)}
.home-exp .oa-exp section{width:100vw;min-height:100vh}

/* ---------- shared type ---------- */
.home-exp .oa-exp h1{font-family:var(--font-head);font-weight:700;text-transform:uppercase;
  line-height:.84;letter-spacing:-.015em;font-size:clamp(2.8rem,12.5vw,11rem);white-space:nowrap}
.home-exp .oa-exp p{font-family:var(--font-body);font-size:13px;line-height:1.35;color:var(--text)}

/* =====================================================================
   INTRO — three stacked rows; the GT3 tumbles over the middle row
   ===================================================================== */
.home-exp .oa-intro{display:flex;flex-direction:column;justify-content:center;
  gap:.1em;padding:calc(var(--nav-h) + 2vh) clamp(18px,4vw,48px) 4vh}
.home-exp .oa-row{display:flex;gap:clamp(2em,10vw,12em);align-items:center}
.home-exp .oa-row:nth-child(1){padding-left:0}
.home-exp .oa-row:nth-child(2){padding-left:clamp(0px,5vw,9vw)}
.home-exp .oa-row:nth-child(3){padding-left:clamp(0px,11vw,20vw)}

/* =====================================================================
   COLLECTION — muted names scroll past the tumbling car
   ===================================================================== */
.home-exp .oa-collection{min-height:220vh;display:flex;flex-direction:column;
  gap:clamp(2.4em,5vw,4em);justify-content:center;align-items:center;text-align:center;
  padding:14vh clamp(18px,4vw,48px)}
.home-exp .oa-collection-head p{font-family:var(--font-head);text-transform:uppercase;
  letter-spacing:.28em;font-size:.82rem;color:var(--gold)}
.home-exp .oa-item{display:block;text-align:center}
.home-exp .oa-item h2{font-family:var(--font-head);text-transform:uppercase;font-weight:700;
  font-size:clamp(2.4rem,9vw,8rem);line-height:.9;letter-spacing:-.01em;color:var(--oa-mute);
  transition:color .4s var(--ease),opacity .4s var(--ease)}
.home-exp .oa-item:hover h2{color:transparent;background:var(--gold-grad);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.home-exp .oa-info{display:flex;justify-content:center;gap:clamp(1.4em,6vw,5em);
  margin-top:1.1em;flex-wrap:wrap}
.home-exp .oa-info p{text-transform:uppercase;letter-spacing:.14em;color:var(--oa-mute-2);font-size:11px}

/* =====================================================================
   OUTRO — closing statement (line-by-line reveal) + contact + CTA
   ===================================================================== */
.home-exp .oa-outro{display:flex;flex-direction:column;justify-content:space-between;
  gap:6vh;padding:clamp(5em,10vh,8em) clamp(18px,4vw,48px) 3em}
.home-exp .oa-outro-copy h2{width:min(80%,26ch);font-family:var(--font-head);text-transform:uppercase;
  font-weight:600;font-size:clamp(1.7rem,4.6vw,3.9rem);line-height:1.02;letter-spacing:-.005em;
  margin-bottom:.7em}
/* each authored line clips its inner mover (revealed from below by JS) */
.home-exp .oa-line{display:block;overflow:hidden}
.home-exp .oa-line-in{display:block;will-change:transform}
.home-exp .oa-outro-copy > p{display:flex;gap:2em;margin:.9em 0;text-transform:uppercase;
  letter-spacing:.06em;font-family:var(--font-head);font-size:.86rem;color:var(--text-dim)}
.home-exp .oa-outro-copy > p .k{color:var(--gold);min-width:8ch}
.home-exp .oa-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:2em}
.home-exp .oa-footer{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;
  text-transform:uppercase;letter-spacing:.04em}
.home-exp .oa-footer p:nth-child(1){width:min(34ch,42%);color:var(--text-dim);line-height:1.4}
.home-exp .oa-footer p:nth-child(2){color:var(--text-mute);font-family:var(--font-head);letter-spacing:.14em}

/* =====================================================================
   CHOOSE — the interactive 3D "ring" of cars around the Porsche.
   Flows straight out of the collection: the tumbling GT3 settles centre,
   the ring of car photos fades in around it, drag to spin, click a car.
   The fixed canvas draws the ring; this section only supplies scroll
   distance + the no-WebGL fallback grid. STAGE-B chrome lives in #chooseUI.
   ===================================================================== */
/* NB: needs to out-specify `.home-exp .oa-exp section{min-height:100vh}` so the
   ring gets a tall scroll span (reveal-in → interactive hold → reveal-out). */
.home-exp .oa-exp section.oa-choose{min-height:230vh}
.home-exp .oa-choose{display:flex;flex-direction:column;
  justify-content:flex-start;align-items:center;text-align:center;
  padding:14vh clamp(18px,4vw,48px) 10vh;gap:2.4em}
.home-exp .oa-choose-head p{font-family:var(--font-head);text-transform:uppercase;
  letter-spacing:.28em;font-size:.82rem;color:var(--gold)}
.home-exp .oa-choose-head h2{font-family:var(--font-head);text-transform:uppercase;font-weight:700;
  font-size:clamp(2.4rem,9vw,7rem);line-height:.9;letter-spacing:-.01em;margin-top:.15em}

/* no-WebGL / no-JS fallback: a plain grid of car links (never leaves users stranded) */
.home-exp .oa-choose-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));
  gap:14px;width:100%;max-width:1100px;margin-top:1em}
.home-exp .oa-choose-grid a{display:flex;justify-content:space-between;align-items:center;gap:12px;
  padding:16px 18px;border:1px solid var(--line-2);border-radius:var(--radius-sm);background:var(--panel);
  font-family:var(--font-head);text-transform:uppercase;letter-spacing:.02em;font-size:1.05rem;
  color:var(--text);transition:border-color .3s var(--ease),transform .3s var(--ease),color .3s var(--ease)}
.home-exp .oa-choose-grid a:hover{border-color:var(--line-strong);transform:translateY(-2px);color:var(--white)}
.home-exp .oa-choose-grid a .px{font-size:.8rem;color:var(--gold)}
/* once the live ring is running, hide the fallback grid + heading (canvas takes over,
   the fixed #chooseUI supplies the interactive title) */
.home-exp.sd-home .oa-choose-grid{display:none}
.home-exp.sd-home .oa-choose-head{display:none}

/* STAGE-B chrome overlay — above the canvas, never blocks the drag */
.sd-choose-ui{position:fixed;inset:0;z-index:5;pointer-events:none;opacity:0;
  transition:opacity .6s var(--ease);font-family:var(--font-head)}
.sd-choose-ui.is-on{opacity:1}
.sd-choose-ui .cu-title{position:absolute;top:clamp(84px,12vh,140px);left:0;right:0;text-align:center;
  text-transform:uppercase;letter-spacing:.06em;color:var(--white);mix-blend-mode:difference}
.sd-choose-ui .cu-title > span{display:block}
.sd-choose-ui .cu-kicker{font-size:.8rem;letter-spacing:.32em;color:var(--gold);margin-bottom:.4em}
.sd-choose-ui .cu-h{font-size:clamp(1.8rem,5vw,3.4rem);font-weight:700;line-height:.95}
.sd-choose-ui .cu-hint{position:absolute;bottom:clamp(24px,6vh,64px);left:0;right:0;text-align:center;
  text-transform:uppercase;letter-spacing:.18em;font-size:.72rem;color:var(--text-dim);
  display:flex;gap:.6em;align-items:center;justify-content:center}
.sd-choose-ui .cu-hint svg{width:15px;height:15px;color:var(--gold)}

/* car-name tooltip that tracks the pointer over a tile */
.sd-tooltip{position:fixed;left:0;top:0;z-index:6;pointer-events:none;opacity:0;
  transform:translate3d(-50%,-140%,0);transition:opacity .18s linear;
  padding:9px 13px;border-radius:100px;background:rgba(10,10,12,.82);backdrop-filter:blur(14px);
  border:1px solid var(--line-2);color:var(--white);font-family:var(--font-head);
  text-transform:uppercase;letter-spacing:.06em;font-size:.82rem;white-space:nowrap;
  box-shadow:0 10px 30px -12px rgba(0,0,0,.8)}
.sd-tooltip.is-on{opacity:1}
.sd-tooltip .tt-px{color:var(--gold);margin-left:.5em}

/* custom cursor while the ring is interactive */
.sd-cursor{position:fixed;left:0;top:0;z-index:6;width:16px;height:16px;border-radius:50%;
  background:var(--gold);mix-blend-mode:difference;pointer-events:none;opacity:0;
  transform:translate3d(-50%,-50%,0);transition:opacity .2s linear,width .2s var(--ease),height .2s var(--ease)}
.sd-cursor.is-on{opacity:1}
.sd-cursor.is-over{width:46px;height:46px;background:transparent;border:1.5px solid var(--gold)}

/* while the ring is interactive the canvas listens for pointer + hides the OS cursor */
.home-exp .sd-model.is-interactive{pointer-events:auto;cursor:none}
.home-exp.ring-active{cursor:none}

/* Split the gesture with the browser instead of fighting it.
   pan-y   → vertical stays native, so the page scrolls normally over the ring.
   Horizontal is ours, so the browser stops firing pointercancel mid-drag and
   pointermove keeps arriving cancelable — previously it claimed the whole
   gesture (touch-action defaulted to auto), killed the drag, and the cancel
   event was being mistaken for a tap.
   pinch-zoom is kept so the page stays zoomable — an accessibility requirement. */
.home-exp .sd-model.is-interactive{touch-action:pan-y pinch-zoom}

@media (prefers-reduced-motion:reduce){
  .sd-choose-ui,.sd-tooltip,.sd-cursor{transition:none}
}
/* touch devices: keep the native cursor, drop the custom dot */
@media (pointer:coarse){
  .sd-cursor{display:none}
  .home-exp .sd-model.is-interactive{cursor:auto}
  .home-exp.ring-active{cursor:auto}
  .home-exp .oa-exp section.oa-choose{min-height:200vh}
}

/* =====================================================================
   RESPONSIVE
   ===================================================================== */
@media (max-width:900px){
  .home-exp .oa-row{gap:1.2em}
  .home-exp .oa-row:nth-child(2),.home-exp .oa-row:nth-child(3){padding-left:0}
  .home-exp .oa-outro-copy h2{width:100%}
}
@media (max-width:640px){
  .home-exp .oa-intro{justify-content:flex-start;padding-top:calc(var(--nav-h) + 4vh);gap:.05em}
  .home-exp .oa-exp h1{font-size:clamp(2.6rem,15vw,4rem)}
  .home-exp .oa-row{flex-direction:column;align-items:flex-start;gap:.3em}
  .home-exp .oa-info{gap:1.1em}
  .home-exp .oa-footer{flex-direction:column;align-items:flex-start;gap:14px}
  .home-exp .oa-footer p:nth-child(1){width:100%}
  .home-exp .oa-cta{flex-direction:column;align-items:stretch;width:100%;max-width:340px}
  .home-exp .oa-cta .btn{justify-content:center}
}

/* =====================================================================
   FAIL-SAFE / REDUCED MOTION — never hide the outro lines
   ===================================================================== */
@media (prefers-reduced-motion:reduce){
  .home-exp .oa-line-in{transform:none!important}
  .home-exp .sd-model{transition:none}
}
/* only the full JS experience arms the reveal; without JS lines stay put */
html:not(.js) .home-exp .oa-line-in{transform:none}

/* =====================================================================
   SERRES WRAP CENTER — sister-business band (.swc)
   Sits in .sd-below, i.e. ordinary document flow well clear of the WebGL
   stage and its ScrollTrigger machinery. Uses the shared .reveal system
   (js/app.js IntersectionObserver), so it inherits the existing
   reduced-motion and no-JS fail-safes from styles.css for free.
   ===================================================================== */
.swc-band{
  display:grid;
  grid-template-columns:1fr 1fr;
  align-items:center;
  gap:clamp(28px,5vw,64px);
  padding:clamp(28px,4vw,52px);
  background:
    radial-gradient(90% 70% at 72% 18%,rgba(200,206,216,.12),transparent 55%),
    linear-gradient(180deg,#111117,#0a0a0c);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
}
.swc-copy h2{
  font-family:var(--font-head);
  text-transform:uppercase;
  font-weight:600;
  font-size:clamp(1.6rem,3.4vw,2.7rem);
  line-height:1.02;
  letter-spacing:-.01em;
  margin:.35em 0 .6em;
}
.swc-copy > p{color:var(--text-dim);font-size:.98rem;max-width:52ch}

/* service list — reads as chips, stays a real <ul> for assistive tech */
.swc-tags{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:22px 0 26px;padding:0}
.swc-tags li{
  font-family:var(--font-head);
  text-transform:uppercase;
  letter-spacing:.12em;
  font-size:.76rem;
  color:var(--gold);
  padding:7px 14px;
  border:1px solid var(--line-2);
  border-radius:100px;
}

/* the whole photo is the link out to serreswrapcenter.es */
.swc-shot{
  position:relative;
  display:block;
  border-radius:var(--radius-sm);
  overflow:hidden;
  border:1px solid var(--line-2);
  box-shadow:var(--shadow);
  aspect-ratio:16/9;
  isolation:isolate;
}
.swc-shot img{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
  transform:scale(1.02);
  transition:transform .7s var(--ease),filter .7s var(--ease);
}
/* keep the label legible over a bright workshop shot */
.swc-shot::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(8,8,10,.72) 100%);
  pointer-events:none;
}
.swc-shot-tag{
  position:absolute;
  left:16px;
  bottom:14px;
  z-index:1;
  display:inline-flex;
  align-items:center;
  gap:.5em;
  font-family:var(--font-head);
  text-transform:uppercase;
  letter-spacing:.14em;
  font-size:.78rem;
  color:var(--white);
}
.swc-shot-tag svg{width:1em;height:1em;transition:transform .35s var(--ease)}

@media (hover:hover){
  .swc-shot:hover img{transform:scale(1.06);filter:saturate(1.06)}
  .swc-shot:hover .swc-shot-tag svg{transform:translate(3px,-3px)}
}
.swc-shot:focus-visible{outline:2px solid var(--gold);outline-offset:3px}

@media (max-width:860px){
  .swc-band{grid-template-columns:1fr}
  /* photo first on narrow screens — it is the hook */
  .swc-shot{order:-1}
}
@media (max-width:620px){
  .swc-copy .btn{width:100%;justify-content:center}
}
@media (prefers-reduced-motion:reduce){
  .swc-shot img{transition:none;transform:none}
  .swc-shot-tag svg{transition:none}
}