:root {
  --bg: #f4efe6;
  --panel: #fffaf1;
  --ink: #171410;
  --muted: #746b60;
  --line: rgba(23,20,16,.12);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at 70% 20%, #fff8eb 0, var(--bg) 42%, #e7ded0 100%);
  color: var(--ink);
}
.page { min-height: 100vh; display: grid; place-items: center; padding: 32px; }
.hero {
  width: min(1180px, 100%);
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 28px;
  align-items: stretch;
}
.copy, .viewer-wrap {
  border: 1px solid var(--line);
  background: rgba(255,250,241,.68);
  border-radius: 34px;
  box-shadow: 0 30px 80px rgba(31,25,16,.12);
}
.copy { padding: clamp(28px, 5vw, 58px); }
.eyebrow { text-transform: uppercase; letter-spacing: .16em; font-size: 12px; color: var(--muted); font-weight: 800; }
h1 { font-size: clamp(42px, 6vw, 78px); line-height: .92; margin: 18px 0; letter-spacing: -.06em; }
.lead { font-size: 18px; line-height: 1.55; color: var(--muted); max-width: 520px; }
.config-card { margin: 32px 0 22px; padding: 18px; background: rgba(255,255,255,.55); border: 1px solid var(--line); border-radius: 22px; }
label { display:block; font-weight: 800; margin-bottom: 10px; }
input {
  width: 150px; font-size: 34px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase;
  border: 1px solid var(--line); border-radius: 16px; padding: 12px 14px; background: white; color: var(--ink);
}
.hint { color: var(--muted); font-size: 13px; line-height: 1.45; }
.actions { display:flex; gap: 12px; flex-wrap: wrap; }
button { border: 0; border-radius: 999px; padding: 15px 22px; font-weight: 850; cursor: pointer; }
.primary { background: #111; color: white; }
.secondary { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.viewer-wrap { position: relative; min-height: 650px; overflow: hidden; }
#scene { width: 100%; height: 100%; display:block; }
.viewer-badge { position:absolute; right:18px; top:18px; padding:10px 14px; border-radius:999px; background:rgba(255,255,255,.75); font-weight:800; font-size:13px; }
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .viewer-wrap { min-height: 520px; }
}