/* Juego ilustrativo aislado: sin alterar la sección de laboratorio. */
#weld-game{background:#091723;color:#f3f5f6;border-block:1px solid #314451;padding-block:72px}
#weld-game .weld-inner{width:min(1180px,calc(100% - 48px));margin:auto}
#weld-game .weld-heading{display:flex;justify-content:space-between;align-items:end;gap:32px;margin-bottom:26px}
#weld-game .weld-heading>div{max-width:650px}
#weld-game .weld-kicker{color:#ffa05b;letter-spacing:.14em;text-transform:uppercase;font-size:.75rem;font-weight:700}
#weld-game h2{margin:0 0 14px;font-size:clamp(2rem,4vw,3.2rem)}
#weld-game p{color:#c2d4df;margin:0}
#weld-game .weld-heading .weld-note{font-size:.8rem;max-width:250px}
#weld-game #weld-help{font-size:.85rem;max-width:900px;margin:14px auto 0}
#weld-game .weld-pattern-control{max-width:900px;margin:0 auto 16px}
#weld-game .weld-pattern-options{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}
#weld-game .weld-pattern-button{display:block;min-width:0;width:100%;min-height:92px;padding:6px;border:3px solid #64859a;border-radius:9px;background:#f8fafb;transition:border-color .15s,box-shadow .15s}
#weld-game .weld-pattern-button:hover{border-color:#ffc188;background:#fff}
#weld-game .weld-pattern-button[aria-pressed="true"]{border-color:#ffa05b;box-shadow:0 0 0 2px #ffa05b88,0 0 15px #ff984277}
#weld-game .weld-pattern-button:focus-visible{outline:3px solid #fff;outline-offset:3px}
#weld-game .weld-pattern-button img{display:block;width:100%;height:72px;object-fit:contain;pointer-events:none}
#weld-game #weld-pattern-help{margin:10px 0 0;font-size:.82rem;color:#c2d4df}
#weld-game .weld-board-shell{position:relative;border:1px solid #456274;border-radius:12px;background:repeating-linear-gradient(90deg,#102b3a 0,#102b3a 29px,#173445 30px);overflow:hidden;max-width:900px;margin:auto;box-shadow:inset 0 0 55px #07131f}
#weld-game svg{display:block;width:100%;height:auto;aspect-ratio:600/256;touch-action:none;user-select:none;cursor:crosshair}
@media(hover:hover) and (pointer:fine){#weld-game svg{cursor:url("cursor-mig.png") 13 3,crosshair}}
#weld-game .weld-plate{fill:#284451;stroke:#63808d;stroke-width:2}
#weld-game .weld-seam{fill:none;stroke:#7cabb6;stroke-width:5;stroke-linecap:round;stroke-linejoin:miter;stroke-dasharray:none}
#weld-game .weld-bead{fill:none;stroke:#ffae65;stroke-width:9;stroke-linecap:round;stroke-linejoin:round;filter:drop-shadow(0 0 5px #ff852c)}
#weld-game #weld-marker{fill:#ffa05b;stroke:#fff1d2;stroke-width:3;filter:drop-shadow(0 0 7px #ff891f)}
#weld-game .weld-label{fill:#d7e9f0;font:700 13px system-ui,sans-serif;letter-spacing:.08em}
#weld-game #weld-sparks{position:absolute;inset:0;pointer-events:none}
#weld-game .weld-spark{position:absolute;width:3px;height:3px;border-radius:50%;background:#ffce86;box-shadow:0 0 5px #ffa05b;animation:weld-fly .36s ease-out forwards}
@keyframes weld-fly{to{opacity:0;transform:rotate(var(--angle)) translateX(19px)}}
#weld-game .weld-controls{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin:24px auto 0;max-width:900px}
#weld-game button{min-height:48px;padding:10px 18px;border-radius:6px;font:inherit;font-weight:700;border:1px solid #75c5db;background:#176487;color:#fff;cursor:pointer}
@media(hover:hover) and (pointer:fine){#weld-game button{cursor:url("cursor-mig.png") 13 3,pointer}}
#weld-game button:hover{background:#217da1}
#weld-game button:focus-visible{outline:3px solid #ffa05b;outline-offset:4px}
#weld-game button:disabled{opacity:.55;cursor:not-allowed}
#weld-game #weld-reset{background:transparent;border-color:#9bb7c3}
#weld-game .weld-meter-wrap{min-width:145px;flex:1;display:flex;gap:12px;align-items:center;color:#e0eef3;font-variant-numeric:tabular-nums}
#weld-game progress{width:100%;height:14px;accent-color:#ffa05b}
#weld-game #weld-status{max-width:900px;margin:14px auto 0;min-height:2.5em;color:#c2d4df}
@media(max-width:700px){#weld-game{padding-block:55px}#weld-game .weld-inner{width:calc(100% - 40px)}#weld-game .weld-heading{display:block}#weld-game .weld-note{max-width:none;margin-top:14px}#weld-game .weld-pattern-control{margin-top:20px}#weld-game .weld-pattern-options{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:350px){#weld-game .weld-pattern-options{gap:7px}#weld-game .weld-pattern-button{padding:3px}}
@media(prefers-reduced-motion:reduce){#weld-game .weld-spark{animation:none;display:none}#weld-game *,#weld-game *::before,#weld-game *::after{transition:none!important}}