.material-main{width:min(1500px,96%);margin:0 auto;padding:1.3rem 0 3rem}.material-intro{text-align:center;max-width:920px;margin:0 auto 1.2rem}.material-intro h1{color:#07549a;margin:.15rem 0}.room-chooser{display:grid;grid-template-columns:repeat(6,1fr);gap:.55rem;margin:1rem 0 1.4rem}.room-choice{border:2px solid #bdd8ea;border-radius:14px;background:#fff;color:#12333f;padding:.65rem .45rem;cursor:pointer;font:inherit;font-weight:800;box-shadow:0 3px 10px #12333f14}.room-choice span{display:block;color:#39738c;font-size:.78rem;margin-top:.1rem}.room-choice:hover,.room-choice:focus-visible{border-color:#ed9e25;transform:translateY(-1px)}.room-choice.active{background:#07549a;color:#fff;border-color:#07549a}.room-choice.active span{color:#dff3ff}.material-game{background:#f6fbfd;border:2px solid #c7e0ea;border-radius:22px;padding:1rem;box-shadow:0 10px 28px #12333f18}.game-heading{display:flex;justify-content:space-between;gap:1rem;align-items:end}.game-heading h2{margin:.1rem 0;color:#12333f}.game-heading p{margin:.2rem 0}.level-label{font-weight:900;color:#39738c;text-transform:uppercase;letter-spacing:.06em}.game-actions{display:flex;gap:.6rem;flex-wrap:wrap}.game-toolbar{display:flex;align-items:center;gap:1rem;background:#fff;border-radius:14px;padding:.55rem .8rem;margin:.8rem 0}.game-toolbar p{margin:0;font-size:1.08rem;white-space:nowrap}.progress-track{height:13px;background:#dcebf0;border-radius:999px;flex:1;overflow:hidden}.progress-track span{display:block;height:100%;width:0;background:linear-gradient(90deg,#f5b335,#28a36a);transition:width .25s}.target-list{display:flex;flex-wrap:wrap;gap:.4rem;margin:.65rem 0}.target-chip{border:1px solid #a8cbd9;background:#fff;border-radius:999px;padding:.35rem .65rem;font-size:.87rem;font-weight:700;color:#244b5b}.target-chip.found{background:#dcf8e8;border-color:#39a76e;color:#17663f;text-decoration:line-through}.scene{position:relative;overflow:hidden;border-radius:16px;background:#fff;border:3px solid #fff;box-shadow:0 5px 18px #12333f22}.scene>img{display:block;width:100%;height:auto}.material-target{position:absolute;border:3px solid transparent;background:transparent;border-radius:12px;cursor:pointer;padding:0}.material-target:hover,.material-target:focus-visible{border-color:#ffd24a;background:#ffd24a25;outline:none}.material-target.found{border-color:#32ad70;background:#32ad7033;pointer-events:none}.material-target.found::after{content:'✓';position:absolute;right:-10px;top:-14px;width:27px;height:27px;border-radius:50%;display:grid;place-items:center;background:#168a55;color:#fff;font-weight:900;box-shadow:0 2px 7px #0004}.material-target.hinting{border-color:#ff9f1c;background:#ffe05255;animation:hintPulse .55s ease-in-out 2}@keyframes hintPulse{50%{transform:scale(1.06);box-shadow:0 0 0 8px #ffd24a55}}.celebration{position:absolute;inset:0;display:grid;place-content:center;text-align:center;background:#ffffffdf;color:#07549a;font-size:clamp(1.4rem,4vw,3rem);padding:1rem}.celebration[hidden]{display:none}.celebration span,.celebration strong{display:block}.game-message{text-align:center;font-weight:800;color:#2c6277;min-height:1.5em}.room-navigation{display:flex;justify-content:space-between;gap:1rem;margin-top:.8rem}.material-help{max-width:900px;margin:1.5rem auto 0;background:#fff8e9;border:2px solid #f2cf82;border-radius:18px;padding:1rem 1.2rem}.material-help h2{margin-top:0;color:#6f4b00}@media(max-width:1050px){.room-chooser{grid-template-columns:repeat(4,1fr)}}@media(max-width:720px){.room-chooser{grid-template-columns:repeat(2,1fr)}.game-heading{display:block}.game-actions{margin-top:.7rem}.game-toolbar{display:block}.progress-track{margin-top:.45rem}.room-navigation .button{padding:.65rem}.material-target{border-width:2px}.target-chip{font-size:.78rem}.material-game{padding:.55rem}}