/* 3D Scan player: the 3D stage with its buttons; beside it (below on phones) the panel for the way of scanning. */
:root{
  --bg:#f3f6fb; --panel:#ffffff; --ink:#1b2236; --muted:#5d6782; --line:#dfe5f0;
  --sky1:#bfe3ff; --sky2:#fff2d8; --accent:#ff6b4a; --accent2:#2bb38a; --chip:#eef2fa;
  --display:"Trebuchet MS",system-ui,sans-serif; --body:system-ui,"Segoe UI",Roboto,sans-serif;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#121726; --panel:#1b2236; --ink:#eef1fa; --muted:#a3acc6; --line:#2d3650;
  --sky1:#24375e; --sky2:#3b2f4a; --accent:#ff8466; --accent2:#3fd0a3; --chip:#252e47; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#121726; --panel:#1b2236; --ink:#eef1fa; --muted:#a3acc6; --line:#2d3650;
  --sky1:#24375e; --sky2:#3b2f4a; --accent:#ff8466; --accent2:#3fd0a3; --chip:#252e47; color-scheme:dark}
*{box-sizing:border-box}
[hidden]{display:none!important}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:15px;line-height:1.5}
.s3d{max-width:1180px;margin:0 auto;padding:12px max(16px,env(safe-area-inset-right,0px)) 40px max(16px,env(safe-area-inset-left,0px))}
.s3d-modes{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.mode{border:2px solid var(--line);background:var(--panel);color:var(--ink);border-radius:14px;padding:9px 14px;font:800 14px var(--body);cursor:pointer;display:flex;gap:8px;align-items:center}
.mode b{font-family:var(--display);font-size:18px;color:var(--accent)}
.mode[aria-pressed="true"]{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 20%,transparent)}
.s3d-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:20px;align-items:start}
@media (max-width:860px){.s3d-grid{grid-template-columns:minmax(0,1fr)}}
.stage{position:relative;border-radius:22px;overflow:hidden;background:linear-gradient(180deg,var(--sky1),var(--sky2));aspect-ratio:4/3;max-width:100%;touch-action:none;border:2px solid var(--line)}
.stage canvas{display:block;width:100%;height:100%}
.say{position:absolute;left:50%;top:14px;transform:translateX(-50%);background:var(--panel);color:var(--ink);border-radius:16px;padding:8px 14px;font-weight:800;max-width:85%;text-align:center;box-shadow:0 6px 18px rgba(0,0,0,.15)}
.hint{position:absolute;right:10px;bottom:8px;font-size:11.5px;color:#fff;text-shadow:0 1px 3px rgba(0,0,0,.6)}
.envs{position:absolute;left:10px;bottom:8px;display:flex;gap:6px;flex-wrap:wrap}
.envs button{border:0;border-radius:999px;padding:6px 10px;font:800 12.5px var(--body);background:rgba(255,255,255,.82);color:#1b2236;cursor:pointer}
.envs button[aria-pressed="true"]{background:#1b2236;color:#fff}
.pads{display:grid;grid-template-columns:auto 1fr;gap:14px;margin-top:14px;align-items:center}
@media (max-width:520px){.pads{grid-template-columns:minmax(0,1fr)}}
.dpad{display:grid;grid-template-columns:repeat(3,52px);grid-template-rows:repeat(3,52px);gap:6px;justify-content:center}
.btn{border:0;border-radius:14px;background:var(--panel);color:var(--ink);font:800 14px var(--body);cursor:pointer;box-shadow:0 2px 0 var(--line),0 0 0 2px var(--line) inset;display:flex;align-items:center;justify-content:center;gap:6px;padding:8px 10px;min-height:44px}
.btn:active{transform:translateY(1px)}
.btn.big{font-size:22px}
.btn.go{background:var(--accent);color:#fff;box-shadow:none}
.btn.green{background:var(--accent2);color:#fff;box-shadow:none}
button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.acts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
@media (max-width:520px){.acts{grid-template-columns:repeat(3,minmax(0,1fr))}}
.speak{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.speak input{flex:1 1 180px;min-width:0;border:2px solid var(--line);border-radius:12px;padding:9px 12px;font:600 14px var(--body);background:var(--panel);color:var(--ink)}
.speak select{border:2px solid var(--line);border-radius:12px;padding:9px;font:700 14px var(--body);background:var(--panel);color:var(--ink)}
.side{background:var(--panel);border:2px solid var(--line);border-radius:22px;padding:18px;display:flex;flex-direction:column;gap:12px}
.side h2{font-family:var(--display);font-size:24px;margin:0;line-height:1.1}
.side p{margin:0;color:var(--muted)}
.drop{border:2px dashed var(--line);border-radius:16px;padding:14px;text-align:center;cursor:pointer;display:block}
.drop b{display:block}
.drop small{color:var(--muted)}
.drop input{position:absolute;opacity:0;width:1px;height:1px}
.thumbs{display:flex;gap:8px}
.thumbs canvas{width:88px;height:66px;border-radius:10px;border:1px solid var(--line);background:#fff}
.slider{display:flex;flex-direction:column;gap:4px;font-weight:700;font-size:13px}
.slider input{width:100%}
.colour{display:flex;flex-direction:column;gap:10px}
.page{background:#fff;border-radius:14px;border:1px solid var(--line);padding:6px;position:relative}
.page svg{width:100%;height:auto;display:block}
.page .mk{position:absolute;width:14px;height:14px;background:#111}
.crayons{display:flex;gap:6px;flex-wrap:wrap}
.crayon{width:34px;height:34px;border-radius:50%;border:3px solid var(--panel);box-shadow:0 0 0 2px var(--line);cursor:pointer}
.crayon[aria-pressed="true"]{box-shadow:0 0 0 3px var(--ink)}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.card{border:2px solid var(--line);border-radius:16px;background:var(--panel);padding:8px;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:4px;font:800 13px var(--body);color:var(--ink)}
.card canvas{width:100%;max-width:120px;aspect-ratio:1;border-radius:10px;background:#fff8ec}
.card[aria-pressed="true"]{border-color:var(--accent)}
.found{border-radius:14px;padding:10px 12px;background:var(--chip);font-weight:700}
.found b{color:var(--accent2)}
.note{font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:10px}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
.s3d-top{display:flex;align-items:center;gap:12px;margin:0 0 12px}
.s3d-top b{display:block;font-family:var(--display);font-size:22px;line-height:1.1}
.s3d-top small{color:var(--muted)}
.s3d-back{width:44px;height:44px;border-radius:14px;border:2px solid var(--line);background:var(--panel);color:var(--ink);font-size:22px;cursor:pointer}
.busy{position:absolute;inset:auto 50% 50% auto;transform:translate(50%,50%);background:rgba(27,34,54,.85);color:#fff;border-radius:999px;padding:8px 16px;font-weight:800}
.nogl{padding:24px;text-align:center;font-weight:700}
.side section{display:flex;flex-direction:column;gap:12px}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{border:2px solid var(--line);background:var(--panel);color:var(--ink);border-radius:999px;padding:6px 12px;font:800 13px var(--body);cursor:pointer;min-height:40px}
.chip[aria-pressed="true"]{border-color:var(--accent);background:var(--chip)}
.row{display:flex;gap:8px;flex-wrap:wrap}
.lnk{color:var(--accent);font-weight:800;text-decoration:none}
.card img{width:100%;max-width:120px;aspect-ratio:1;object-fit:contain;border-radius:10px;background:#fff8ec}
.card .emo{font-size:58px;line-height:1.3}
.note{margin:0}