/* Roaring Forties Paint Shop - static, self-contained, no external calls.
   Renamed from "GT40 Configurator" 2026-07-26 at the client's request. The
   folder and file paths still say "showroom" on purpose: the preview deploy is
   staged there, so this is a label-only rename. */

:root{
  --rf-navy:#0E1D42;
  --rf-navy-2:#152a5e;
  --rf-ink:#0a1430;
  --rf-red:#C8000A;
  --rf-red-hi:#e11420;
  --rf-marigold:#E8A72C;   /* heritage accent, used sparingly */
  --rf-powder:#8FB6D6;     /* heritage accent, used sparingly */
  --stage-1:#f5f7fa;
  --stage-2:#d6dbe2;
  --paper:#ffffff;
  --line:rgba(255,255,255,.14);
  --text-dim:rgba(255,255,255,.72);
  --radius:14px;
  --shadow:0 18px 50px rgba(6,14,36,.30);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Roboto Mono", Menlo, Consolas, monospace;
}

*{box-sizing:border-box}
html,body{margin:0}
body{
  font-family:var(--font);
  color:#eaf0ff;
  background:
    radial-gradient(1200px 600px at 50% -10%, #17306b 0%, rgba(23,48,107,0) 60%),
    linear-gradient(180deg, var(--rf-navy) 0%, var(--rf-ink) 100%);
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}

/* ---------- top bar ---------- */
.sr-top{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px clamp(16px,4vw,40px);
  border-bottom:1px solid var(--line);
}
/* The heading is a link home, same target as the Back to site button.
   Added 2026-07-26. Colour and underline are reset so it looks unchanged. */
.brand{display:flex;flex-direction:column;line-height:1.05;color:inherit;text-decoration:none;border-radius:6px}
.brand:hover .mark{color:#fff}
.brand:hover .sub{opacity:.85}
.brand:focus-visible{outline:3px solid var(--rf-powder);outline-offset:4px}
.brand .mark{font-weight:800;letter-spacing:.14em;font-size:clamp(14px,2.2vw,18px)}
.brand .sub{font-size:11px;letter-spacing:.28em;text-transform:uppercase;color:var(--rf-marigold);margin-top:3px}
.back{
  color:var(--text-dim);text-decoration:none;font-size:13px;font-weight:600;
  padding:8px 14px;border:1px solid var(--line);border-radius:999px;white-space:nowrap;
  transition:background .2s,color .2s,border-color .2s;
}
.back:hover{background:rgba(255,255,255,.06);color:#fff;border-color:rgba(255,255,255,.3)}

/* ---------- tabs ---------- */
.tabs{
  position:relative;display:flex;gap:6px;
  padding:14px clamp(16px,4vw,40px) 0;
  max-width:1120px;margin:0 auto;width:100%;
}
.tab{
  appearance:none;background:transparent;border:0;cursor:pointer;
  color:var(--text-dim);font-family:inherit;font-weight:700;font-size:14px;letter-spacing:.04em;
  padding:12px 16px 16px;border-radius:10px 10px 0 0;transition:color .2s;
}
.tab:hover{color:#fff}
.tab.is-active{color:#fff}
.tab-underline{
  position:absolute;bottom:0;height:3px;background:var(--rf-red);border-radius:3px;
  transition:left .28s cubic-bezier(.4,.01,.2,1), width .28s cubic-bezier(.4,.01,.2,1);
}

/* ---------- main / panels ---------- */
.sr-main{max-width:1120px;margin:0 auto;padding:clamp(16px,3vw,28px) clamp(16px,4vw,40px) 40px}
.panel{display:none;animation:fade .35s ease}
.panel.is-active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* ---------- stage (shared) ---------- */
.stage{
  position:relative;width:100%;border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);
  background:linear-gradient(180deg,var(--stage-1),var(--stage-2));
}
.spin-stage{aspect-ratio:1200/380;touch-action:none;cursor:grab;user-select:none}
.spin-stage:active{cursor:grabbing}
.spin-stage:focus-visible{outline:3px solid var(--rf-powder);outline-offset:3px}
.spin-frame{
  position:absolute;inset:0;width:100%;height:100%;object-fit:contain;
  pointer-events:none;
}
#spinB{opacity:0}
.spin-hint{
  position:absolute;left:50%;bottom:14px;transform:translateX(-50%);
  display:flex;align-items:center;gap:8px;
  background:rgba(14,29,66,.82);color:#fff;font-size:13px;font-weight:600;
  padding:8px 16px;border-radius:999px;pointer-events:none;
  transition:opacity .4s;letter-spacing:.02em;
}
.spin-hint .grab{font-size:16px}
.loader{position:absolute;left:0;right:0;bottom:0;height:3px;background:rgba(14,29,66,.12)}
.loader i{display:block;height:100%;background:var(--rf-red);transition:width .15s}

.stage-bar{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:14px;flex-wrap:wrap;
}
.hint-txt{color:var(--text-dim);font-size:13px}
.hint-txt.center{display:block;text-align:center;margin:16px 0 0}
.ghost-btn{
  appearance:none;cursor:pointer;font-family:inherit;font-weight:700;font-size:13px;
  color:#fff;background:rgba(255,255,255,.06);border:1px solid var(--line);
  padding:9px 18px;border-radius:999px;transition:background .2s,border-color .2s;
}
.ghost-btn:hover{background:rgba(255,255,255,.13);border-color:rgba(255,255,255,.3)}

/* ---------- paint shop ---------- */
.paint-stage{aspect-ratio:16/9;display:grid;place-items:center}
.paint-stage .layer{position:absolute;inset:0;display:grid;place-items:center}
.paint-stage .layer img{
  position:absolute;max-width:82%;max-height:78%;object-fit:contain;
  opacity:0;transition:opacity .34s ease;
  filter:drop-shadow(0 22px 24px rgba(20,30,50,.28));
}
.paint-stage .layer img.show{opacity:1}
.paint-stage .layer#stripeLayer img{filter:none}

.paint-caption{
  text-align:center;margin:16px 0 4px;font-weight:700;letter-spacing:.02em;color:#fff
}
.paint-caption .sep{color:var(--rf-marigold);margin:0 10px;font-weight:400}

.swatch-group{max-width:760px;margin:14px auto 0;display:flex;flex-direction:column;gap:16px}
.swatch-row{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.swatch-row.actions{justify-content:center;margin-top:2px}
.row-label{
  width:104px;flex:none;font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--text-dim);font-weight:700;
}
.swatches{display:flex;flex-wrap:wrap;gap:10px;flex:1}
.swatch{
  --c:#ccc;
  position:relative;width:34px;height:34px;border-radius:50%;cursor:pointer;
  border:0;padding:0;background:var(--c);
  box-shadow:0 0 0 1px rgba(255,255,255,.35) inset, 0 2px 6px rgba(0,0,0,.35);
  transition:transform .15s;
}
.swatch:hover{transform:scale(1.12)}
.swatch:focus-visible{outline:2px solid var(--rf-powder);outline-offset:3px}
.swatch.is-active{
  box-shadow:0 0 0 2px var(--rf-ink), 0 0 0 5px var(--rf-red);
  transform:scale(1.08);
}
.swatch.none{background:
  linear-gradient(45deg,#e9edf2 46%,var(--rf-red) 47%,var(--rf-red) 53%,#e9edf2 54%);}

/* ---------- features ---------- */
.feat-stage{aspect-ratio:988/538;background:#0b1020}
.feat-hero{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.markers{position:absolute;inset:0}
.marker{
  position:absolute;transform:translate(-50%,-50%);
  width:34px;height:34px;border-radius:50%;cursor:pointer;padding:0;
  color:#fff;font-weight:800;font-size:14px;font-family:var(--mono);
  background:var(--rf-red);border:2px solid #fff;
  box-shadow:0 4px 14px rgba(0,0,0,.5);
  animation:pulse 2.4s infinite;
}
.marker:hover{background:var(--rf-red-hi)}
.marker:focus-visible{outline:3px solid var(--rf-powder);outline-offset:2px}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(200,0,10,.55),0 4px 14px rgba(0,0,0,.5)}
  70%{box-shadow:0 0 0 14px rgba(200,0,10,0),0 4px 14px rgba(0,0,0,.5)}
  100%{box-shadow:0 0 0 0 rgba(200,0,10,0),0 4px 14px rgba(0,0,0,.5)}}

.feat-chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:18px}
.chip{
  appearance:none;cursor:pointer;font-family:inherit;font-weight:700;font-size:13px;
  color:#fff;background:rgba(255,255,255,.06);border:1px solid var(--line);
  padding:10px 18px;border-radius:999px;transition:background .2s,border-color .2s;
  display:inline-flex;align-items:center;gap:8px;
}
.chip:hover{background:rgba(255,255,255,.13);border-color:rgba(255,255,255,.3)}
.chip .num{font-family:var(--mono);color:var(--rf-marigold);font-size:12px}

/* ---------- modal ---------- */
.modal{position:fixed;inset:0;z-index:60;display:grid;place-items:center;padding:20px}
.modal[hidden]{display:none}
.modal-backdrop{position:absolute;inset:0;background:rgba(6,12,30,.72);backdrop-filter:blur(3px)}
.modal-card{
  position:relative;z-index:1;width:min(860px,100%);max-height:90vh;overflow:auto;
  background:linear-gradient(180deg,#12244f,#0d1a3c);
  border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);
  padding:26px clamp(20px,4vw,34px);animation:pop .3s ease;
}
@keyframes pop{from{opacity:0;transform:translateY(10px) scale(.98)}to{opacity:1;transform:none}}
.modal-close{
  position:absolute;top:14px;right:16px;width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line);background:rgba(255,255,255,.06);color:#fff;
  font-size:20px;line-height:1;cursor:pointer;transition:background .2s;
}
.modal-close:hover{background:rgba(255,255,255,.16)}
.modal-title{margin:0 0 18px;font-size:clamp(19px,3vw,24px);letter-spacing:.01em}
.modal-title::after{content:"";display:block;width:46px;height:3px;background:var(--rf-red);margin-top:10px;border-radius:3px}
.modal-body{display:grid;grid-template-columns:1.25fr 1fr;gap:22px}
.modal-figure{border-radius:12px;overflow:hidden;background:#0b1020;display:grid;place-items:center}
.modal-figure img{width:100%;height:100%;object-fit:cover;display:block}
.modal-thumbs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.modal-thumb{
  width:58px;height:44px;border-radius:8px;overflow:hidden;cursor:pointer;padding:0;
  border:2px solid transparent;background:#0b1020;transition:border-color .2s;
}
.modal-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.modal-thumb.is-active{border-color:var(--rf-red)}
.modal-text{margin:0;line-height:1.6;color:#dbe4fb;font-size:14.5px}

/* ---------- footer ---------- */
.sr-foot{
  text-align:center;padding:22px;color:var(--text-dim);font-size:12px;
  border-top:1px solid var(--line);letter-spacing:.03em;
}
.sr-foot .dot{margin:0 8px;color:var(--rf-marigold)}

/* ---------- responsive ---------- */
@media (max-width:720px){
  .modal-body{grid-template-columns:1fr}
  .row-label{width:100%}
  .brand .sub{display:none}
  .spin-stage{aspect-ratio:1200/460}
  .paint-stage{aspect-ratio:4/3}
}
@media (prefers-reduced-motion:reduce){
  .marker{animation:none}
  .panel{animation:none}
}