/* ═══════════════════════════════════════════════════════════
   Solar Eclipse Ibiza — 3D hero PROTOTYPE page only.
   Loaded exclusively by hero-3d-test.html — never by index.html.
   ═══════════════════════════════════════════════════════════ */

/* ── fixed 3D stage behind everything ─────────────── */
.h3d-stage{position:fixed;inset:0;z-index:0;background:var(--bg)}
.h3d-stage canvas{width:100%;height:100%;display:block;opacity:0;transition:opacity .9s ease}
.h3d-stage.is-live canvas{opacity:1}

/* hero background image (landscape) */
.h3d-img{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;object-position:31% 42%;
  will-change:transform;transform:scale(1.08);background:var(--bg)
}

/* scrim — same recipe as .hero__bg::after in style.css, kept
   above the canvas so we judge real copy legibility */
.h3d-scrim{
  position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(180deg,rgba(29,29,29,.15) 0%,rgba(29,29,29,0) 26%,rgba(29,29,29,.28) 66%,rgba(29,29,29,.72) 100%),
    linear-gradient(75deg,rgba(29,29,29,.3) 0%,rgba(29,29,29,.1) 36%,transparent 62%),
    radial-gradient(120% 80% at 50% 0%,transparent 46%,rgba(29,29,29,.2) 100%);
}

/* ── no-WebGL fallback: plain photo + note ────────── */
.h3d-fallback{position:absolute;inset:0;display:none}
.h3d-stage.no-webgl .h3d-fallback{display:block}
.h3d-stage.no-webgl canvas{display:none}
.h3d-fallback img{width:100%;height:100%;object-fit:cover;object-position:31% 42%}
.h3d-fallback__note{
  position:absolute;left:50%;bottom:18px;transform:translateX(-50%);
  margin:0;padding:8px 16px;border-radius:100px;
  font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted);background:rgba(29,29,29,.75);border:1px solid var(--line);
}

/* ── page structure: hero copy above the stage ────── */
.h3d-hero{background:transparent}          /* .hero on this page has no __bg of its own */
.h3d-hero,.h3d-spacer{position:relative;z-index:1}

/* second viewport so scroll drives the camera path */
.h3d-spacer{
  min-height:100vh;display:grid;place-items:center;
  pointer-events:none;
}
.h3d-spacer p{
  font-size:11px;font-weight:600;letter-spacing:.3em;text-transform:uppercase;
  color:var(--faint);margin:0;
}

/* prototype badge */
.h3d-badge{
  position:fixed;left:16px;bottom:14px;z-index:5;margin:0;
  font-size:10px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;
  color:var(--faint);padding:6px 12px;border:1px solid var(--line);
  border-radius:100px;background:rgba(29,29,29,.6);pointer-events:none;
}

/* ── tuning panel (top-right, collapsible, no libs) ─ */
.h3d-panel{
  position:fixed;top:14px;right:14px;z-index:10;width:262px;
  font-family:var(--f-body);font-size:12px;color:var(--ink);
  background:rgba(24,24,24,.92);border:1px solid var(--line-2);
  border-radius:12px;backdrop-filter:blur(8px);
  box-shadow:0 8px 32px rgba(0,0,0,.45);
}
.h3d-panel__head{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  padding:10px 14px;background:none;border:0;cursor:pointer;
  font:inherit;color:var(--ink);font-weight:700;
  letter-spacing:.12em;text-transform:uppercase;font-size:11px;
}
.h3d-panel__head::after{content:"▾";color:var(--accent-lt);transition:transform .2s}
.h3d-panel.is-collapsed .h3d-panel__head::after{transform:rotate(-90deg)}
.h3d-panel__body{padding:2px 14px 14px;max-height:calc(100vh - 90px);overflow-y:auto}
.h3d-panel.is-collapsed .h3d-panel__body{display:none}

.h3d-ctl{margin:0 0 10px}
.h3d-ctl label{
  display:flex;justify-content:space-between;gap:8px;margin-bottom:3px;
  font-size:10px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;
  color:var(--muted);
}
.h3d-ctl output{color:var(--accent-lt);font-variant-numeric:tabular-nums}
.h3d-ctl input[type="range"]{
  width:100%;height:18px;margin:0;appearance:none;-webkit-appearance:none;
  background:transparent;cursor:pointer;
}
.h3d-ctl input[type="range"]::-webkit-slider-runnable-track{
  height:3px;border-radius:2px;background:var(--line-2);
}
.h3d-ctl input[type="range"]::-webkit-slider-thumb{
  -webkit-appearance:none;width:13px;height:13px;border-radius:50%;
  background:var(--accent);margin-top:-5px;border:0;
}
.h3d-ctl input[type="range"]::-moz-range-track{height:3px;border-radius:2px;background:var(--line-2)}
.h3d-ctl input[type="range"]::-moz-range-thumb{width:13px;height:13px;border-radius:50%;background:var(--accent);border:0}

.h3d-ctl--check{display:flex;align-items:center;gap:8px}
.h3d-ctl--check label{margin:0;cursor:pointer}
.h3d-ctl--check input{accent-color:var(--accent)}

.h3d-panel__actions{display:flex;gap:8px;margin-top:12px}
.h3d-panel__actions button{
  flex:1;padding:8px 10px;border-radius:8px;cursor:pointer;
  font:inherit;font-size:10px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink);background:var(--surface-2);border:1px solid var(--line-2);
  transition:border-color .2s;
}
.h3d-panel__actions button:hover{border-color:var(--accent)}
.h3d-panel__note{margin:10px 0 0;font-size:10px;line-height:1.5;color:var(--faint)}

@media(max-width:640px){
  .h3d-panel{width:225px;top:10px;right:10px}
}