/* Lab site: playful home, collection and rewards. The question screen keeps notebook.css. */
:root{--navy:#1f2a44;--navy-2:#2c3a5c;--sun:#ffd166;--cream:#f7f3ea;--card:#fffdf8;--lab-ink:#1f2a37;--lab-muted:#5d6675;--lab-line:#e4ddcf;
  --f0:#e4572e;--f0-soft:#fde6dd;--f1:#e08a00;--f1-soft:#fdf0d5;--f2:#2477c9;--f2-soft:#dceafa;--f3:#7a4fd0;--f3-soft:#ebe2fb;--f4:#139a7e;--f4-soft:#d7f2ea;
  --bronze:#b26d38;--bronze-soft:#f4e2d2;--silver:#7f8b99;--silver-soft:#e9edf2;--gold:#c9970c;--gold-soft:#fbefc6}
body{background:var(--cream);color:var(--lab-ink)}
[hidden]{display:none!important}
.f0{--fc:var(--f0);--fs:var(--f0-soft)}.f1{--fc:var(--f1);--fs:var(--f1-soft)}.f2{--fc:var(--f2);--fs:var(--f2-soft)}.f3{--fc:var(--f3);--fs:var(--f3-soft)}.f4{--fc:var(--f4);--fs:var(--f4-soft)}
.grade-bronze{--gc:var(--bronze);--gs:var(--bronze-soft)}.grade-silver{--gc:var(--silver);--gs:var(--silver-soft)}.grade-gold{--gc:var(--gold);--gs:var(--gold-soft)}
.field-svg{width:1.2em;height:1.2em;fill:none;stroke:currentColor;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.flame{width:1em;height:1em;fill:currentColor}

/* Header */
.lab-header{background:var(--navy);color:white;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px max(16px,calc((100% - 1040px)/2));position:sticky;top:0;z-index:4}
.lab-brand{display:flex;align-items:center;gap:10px;color:white;text-decoration:none;font-weight:800;font-size:17px;letter-spacing:.06em}
.lab-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:var(--sun);color:var(--navy)}.lab-mark svg{width:24px;height:24px}
.lab-trial{font-size:10px;font-weight:500;letter-spacing:0;border:1px solid #ffffff55;border-radius:4px;padding:2px 6px}
.lab-nav{display:flex;align-items:center;gap:4px}
.lab-nav a{color:#dfe5f2;text-decoration:none;font-size:13px;font-weight:600;padding:10px 12px;border-radius:8px;min-height:44px;display:flex;align-items:center}
.lab-nav a:hover{background:var(--navy-2)}.lab-nav a[aria-current=page]{color:white;background:var(--navy-2);box-shadow:inset 0 -3px 0 var(--sun)}
.streak-chip{display:flex;align-items:center;gap:3px;margin-left:6px;padding:6px 11px;border-radius:20px;background:var(--navy-2);color:#9aa6bf;font-size:12px}
.streak-chip b{font-size:16px;color:white;font-variant-numeric:tabular-nums}.streak-chip .flame{font-size:17px}
.streak-chip.lit{background:#ff8a3d26;color:#ffb27a}.streak-chip.lit .flame{color:#ff8a3d}
main{max-width:1040px;padding:0 24px}
.lab-heading{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.lab-heading h2{font-size:19px;margin:0}.lab-heading>span{font-size:12px;color:var(--lab-muted)}.lab-heading a{font-size:13px;font-weight:700;color:var(--navy);text-decoration:none;padding:8px 0}
.lab-heading a:hover{text-decoration:underline}

/* Home */
.lab-hero{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:18px;margin:28px 0 30px}
.hero-text{background:var(--navy);color:white;border-radius:20px;padding:30px 30px 28px;position:relative;overflow:hidden}
.hero-text:after{content:"";position:absolute;right:-50px;bottom:-70px;width:220px;height:220px;border-radius:50%;border:26px solid #ffffff0d;box-shadow:0 0 0 30px #ffffff08}
.hero-date{margin:0 0 10px;font-size:12px;font-weight:700;color:var(--sun);letter-spacing:.08em}
.hero-text h1{font-family:inherit;font-size:clamp(26px,3.4vw,36px);font-weight:800;line-height:1.4;letter-spacing:.02em;margin:0 0 12px}
.hero-text.is-clear h1{color:var(--sun)}
.hero-lead{margin:0;font-size:13px;line-height:1.9;color:#d2d9e8;position:relative;z-index:1}
.sp{display:none}
.streak-card{background:var(--card);border:2px solid var(--lab-line);border-radius:20px;padding:22px 20px;display:flex;flex-direction:column}
.streak-main{display:flex;align-items:center;gap:12px;color:#c3c8d0}.streak-main .flame{font-size:46px}
.streak-card.lit{border-color:#ffb27a}.streak-card.lit .streak-main{color:#ff7a2e}
.streak-main b{font-size:44px;line-height:1;color:var(--lab-ink);font-variant-numeric:tabular-nums}.streak-main span{font-size:14px;font-weight:700;margin-left:4px;color:var(--lab-ink)}
.streak-best{font-size:12px;color:var(--lab-muted);margin:8px 0 14px}
.week-row{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}
.week-dot{display:flex;flex-direction:column;align-items:center;gap:5px;font-size:10px;color:var(--lab-muted)}
.week-dot b{width:30px;height:30px;border-radius:50%;border:2px dashed #d5cdbd;display:grid;place-items:center;color:white;font-size:14px}
.week-dot.done b{background:#ff8a3d;border:2px solid #ff8a3d}.week-dot.today b{outline:2px solid var(--navy);outline-offset:2px}.week-dot.today span{color:var(--navy);font-weight:800}.week-dot.future b{border-color:#ebe5d8}
.streak-note{font-size:12px;color:var(--lab-muted);margin:14px 0 0;line-height:1.7}
.field-picker{margin-bottom:34px}
.field-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}
.field-tile{position:relative;display:flex;flex-direction:column;gap:6px;padding:18px 16px 16px;background:var(--card);border:2px solid var(--lab-line);border-bottom:5px solid var(--fc);border-radius:16px;text-decoration:none;color:var(--lab-ink);transition:transform .15s,box-shadow .15s}
.field-tile:hover{transform:translateY(-3px);box-shadow:0 8px 20px #1f2a4418;border-color:var(--fc)}
.field-tile:active{transform:translateY(0)}
.tile-icon{display:grid;place-items:center;width:46px;height:46px;border-radius:12px;background:var(--fs);color:var(--fc);font-size:26px;margin-bottom:4px}
.tile-name{font-size:18px;font-weight:800}
.tile-count{font-size:12px;color:var(--lab-muted)}.tile-count b{font-size:16px;color:var(--lab-ink)}
.bar{width:100%;height:6px;display:block}.bar-track{fill:#eee8dc}.bar-value{fill:var(--fc)}
.tile-sub{font-size:11px;color:var(--fc);font-weight:700}
.recent-section{margin-bottom:34px}
.empty-note{background:var(--card);border:2px dashed var(--lab-line);border-radius:14px;padding:20px;font-size:13px;color:var(--lab-muted);margin:0}
.rules{background:var(--card);border-radius:18px;padding:22px 24px;border:2px solid var(--lab-line)}
.rules h2{font-size:16px;margin:0 0 14px}
.rule-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.rule-list li{display:flex;gap:12px;align-items:flex-start}
.rule-list p{margin:0;font-size:12px;line-height:1.8;color:var(--lab-muted)}.rule-list b{display:block;color:var(--lab-ink);font-size:13px}
.list-link{display:flex;justify-content:space-between;align-items:center;margin:22px 0 0;padding:16px 20px;border-radius:14px;background:transparent;border:2px solid var(--lab-line);text-decoration:none;font-size:13px;font-weight:700;color:var(--navy);min-height:52px}
.list-link:hover{background:var(--card)}

/* Grade chip and mini cards */
.grade-chip{display:inline-grid;place-items:center;min-width:28px;height:28px;padding:0 6px;border-radius:8px;background:var(--gc);color:white;font-size:13px;font-weight:800;flex-shrink:0}
.grade-gold .grade-chip,.grade-chip.grade-gold{background:linear-gradient(135deg,#f5cf47,#c9970c);color:#3d2c00}
.grade-silver .grade-chip,.grade-chip.grade-silver{background:linear-gradient(135deg,#d7dde4,#8a96a5);color:#20262e}
.grade-bronze .grade-chip,.grade-chip.grade-bronze{background:linear-gradient(135deg,#e1a676,#a5612f)}
.mini-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(132px,1fr));gap:12px}
.mini-card{position:relative;display:flex;flex-direction:column;gap:6px;min-height:148px;padding:12px 12px 12px;border-radius:14px;background:var(--card);border:3px solid var(--gc);text-decoration:none;color:var(--lab-ink);box-shadow:0 3px 0 var(--gs);transition:transform .15s}
a.mini-card:hover{transform:translateY(-3px) rotate(-.6deg)}
.mini-card.grade-gold{background:linear-gradient(160deg,#fffaf0 55%,#fbefc6)}
.mini-no{font-size:10px;font-weight:800;color:var(--lab-muted);letter-spacing:.04em}
.mini-icon{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;background:var(--fs);color:var(--fc);font-size:22px}
.mini-title{font-size:12px;font-weight:700;line-height:1.55;flex:1}
.mini-card .grade-chip{position:absolute;right:10px;top:10px;min-width:24px;height:24px;font-size:12px}
.mini-card.empty{border:2px dashed #d5cdbd;background:#fbf8f1;box-shadow:none;align-items:center;justify-content:center;color:#a9a090}
.mini-card.empty .mini-no{position:absolute;left:12px;top:12px}
.empty-mark{font-size:34px;font-weight:800;color:var(--fc);opacity:.35;line-height:1}
.mini-card.empty .mini-title{flex:0;font-weight:500;font-size:11px}

/* Collection */
.collection-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;margin:28px 0 22px}
.collection-head h1{font-family:inherit;font-size:28px;font-weight:800;margin:0}
.collection-stats{display:flex;gap:10px}
.collection-stats>div{background:var(--card);border:2px solid var(--lab-line);border-radius:14px;padding:10px 16px;display:flex;align-items:baseline;gap:6px}
.collection-stats b{font-size:26px;font-variant-numeric:tabular-nums}.collection-stats span{font-size:12px;color:var(--lab-muted)}
.collection-stats .grade-gold{border-color:#e9cf73;background:var(--gold-soft)}.collection-stats .grade-gold b{color:#8a6500}
.field-section{margin-bottom:30px}
.field-section-head{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;border-bottom:3px solid var(--fc);padding-bottom:8px;margin-bottom:14px}
.field-section-head h2{display:flex;align-items:center;gap:8px;font-size:19px;margin:0;color:var(--fc)}
.field-section-head span{font-size:12px;color:var(--lab-muted)}

/* Law card */
.law-card{position:relative;max-width:420px;margin:0 auto;background:var(--card);border-radius:22px;padding:20px 22px 18px;border:5px solid var(--gc);box-shadow:0 6px 0 var(--gs),0 18px 40px #1f2a4420;overflow:hidden}
.law-card:before{content:"";position:absolute;inset:0 0 auto;height:7px;background:var(--fc)}
.law-card.grade-gold{background:linear-gradient(165deg,#fffdf5 50%,#fbefc6);border-color:#d9a91a}
.law-card.grade-gold:after{content:"";position:absolute;inset:-40% auto -40% -60%;width:40%;background:linear-gradient(100deg,transparent,#ffffffb0,transparent);transform:rotate(15deg);animation:shine 3.6s ease-in-out infinite}
.law-top{display:flex;justify-content:space-between;align-items:center;margin-top:4px}
.law-field{display:flex;align-items:center;gap:6px;font-size:13px;font-weight:800;color:var(--fc)}
.grade-badge{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:var(--gc);color:white;font-weight:800;font-size:16px;box-shadow:inset 0 -3px 0 #0002}
.grade-gold .grade-badge{background:linear-gradient(135deg,#f8d95a,#c9970c);color:#3d2c00}
.grade-silver .grade-badge{background:linear-gradient(135deg,#e2e6eb,#8a96a5);color:#20262e}
.grade-bronze .grade-badge{background:linear-gradient(135deg,#e6ac7c,#a5612f)}
.law-no{margin:6px 0 2px;font-size:11px;font-weight:800;color:var(--lab-muted)}
.law-title{font-size:20px;line-height:1.5;margin:0 0 12px}
.law-figure{background:white;border:1px solid var(--lab-line);border-radius:12px;padding:8px;margin-bottom:12px}.law-figure img{display:block;width:100%;height:auto;max-height:150px;object-fit:contain}
.law-key{background:var(--fs);border-radius:12px;padding:10px 12px;margin-bottom:12px}
.law-key span,.law-transfer span{display:block;font-size:10px;font-weight:800;letter-spacing:.08em;color:var(--fc)}
.law-key p{margin:3px 0 0;font-size:13px;font-weight:700;line-height:1.6}
.law-takeaway{font-size:14px;font-weight:700;line-height:1.85;margin:0 0 12px}
.law-transfer{border-top:2px dotted var(--lab-line);padding-top:10px}.law-transfer p{margin:3px 0 0;font-size:12px;line-height:1.8;color:var(--lab-muted)}
.law-foot{margin:12px 0 0;font-size:10px;color:var(--lab-muted);text-align:right}
.back-link{display:inline-flex;align-items:center;min-height:44px;font-size:13px;font-weight:700;color:var(--navy);text-decoration:none}
.card-stage{padding:10px 0 4px}
.card-goal{text-align:center;font-size:13px;font-weight:700;color:var(--navy);margin:22px 0 14px}
.card-actions{text-align:center}.card-actions .primary{background:var(--navy);border-color:var(--navy)}.card-actions .primary:hover{background:var(--navy-2)}

/* Library */
.library-title{font-family:inherit;font-size:26px;font-weight:800;margin:6px 0 6px}
.library-note{font-size:12px;color:var(--lab-muted);margin:0 0 22px}
.library-field{margin-bottom:24px}
.library-field h2{display:flex;align-items:center;gap:8px;font-size:17px;color:var(--fc);border-bottom:3px solid var(--fc);padding-bottom:6px;margin:0 0 6px}
.library-list a{display:flex;align-items:center;gap:12px;padding:10px 4px;min-height:48px;border-bottom:1px solid var(--lab-line);text-decoration:none;font-size:13px}
.library-list a:hover{background:var(--card)}
.lib-no{font-size:11px;font-weight:800;color:var(--lab-muted);width:40px;flex-shrink:0}.lib-title{flex:1}.lib-new{font-size:11px;color:#a9a090}
.library-list .grade-chip{min-width:26px;height:26px;font-size:12px}

/* Question screen: notebook layout with lab navigation and the reward */
.lab-question{max-width:860px;margin:20px auto 0}
.question-top{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin:-12px 0 6px}
.rechallenge{font-size:11px;font-weight:800;color:var(--gc);background:var(--gs);border-radius:20px;padding:5px 11px}
.lab-tag{display:inline-flex;align-items:center;gap:5px;color:var(--fc);background:var(--fs);font-weight:700}
.reward:empty{display:none}
.reward-box{margin-top:26px;padding:24px 18px;border-radius:20px;background:var(--navy);color:white;text-align:center}
.reward-title{font-size:20px;font-weight:800;margin:0 0 6px;color:var(--sun)}
.reward-clear{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:800;background:#ff8a3d;color:white;border-radius:20px;padding:6px 14px;margin:2px 0 4px}
.reward-card{margin:16px 0 4px;text-align:left;color:var(--lab-ink)}
.reward-goal{font-size:13px;line-height:1.8;margin:18px 0 16px;color:#d2d9e8}
.reward-actions{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}
.reward-actions .secondary{color:white;border-color:#ffffff66}.reward-actions .secondary:hover{background:var(--navy-2)}
.f-button{background:var(--fc);border-color:var(--fc)}.f-button:hover{background:var(--fc);filter:brightness(.92)}
.reveal{animation:reveal .75s cubic-bezier(.2,1.4,.4,1) both}
.is-new .reward-title{animation:pop .5s .5s both}
@keyframes reveal{0%{transform:perspective(800px) rotateY(90deg) scale(.7);opacity:0}100%{transform:none;opacity:1}}
@keyframes pop{0%{transform:scale(.6);opacity:0}100%{transform:none;opacity:1}}
@keyframes shine{0%,60%{left:-60%}100%{left:130%}}

/* Tickets, gacha and lab */
.ticket-badge{display:inline-grid;place-items:center;min-width:19px;height:19px;padding:0 5px;margin-left:5px;border-radius:10px;background:var(--sun);color:var(--navy);font-size:11px;font-weight:800}
.item-svg{display:block;width:100%;height:100%}
.item-svg.silhouette{filter:brightness(0);opacity:.13}
.lock{width:20px;height:20px;fill:#cfc6b4;stroke:#cfc6b4;stroke-width:2.2;vertical-align:-4px}
.stars{color:#e0a400;letter-spacing:1px}.stars.r3{color:#e4572e}
.lab-teaser{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:18px;margin-bottom:34px;padding:18px 22px;border-radius:18px;background:linear-gradient(120deg,#fff3d1,#ffe3c4);border:2px solid #f3c98a}
.teaser-text h2{font-size:19px;margin:0 0 2px}.teaser-text p{margin:0;font-size:12px;color:var(--lab-muted)}.teaser-text b{font-size:20px;color:var(--lab-ink)}
.teaser-items{display:flex;gap:8px;min-width:0}.teaser-items .item-svg{width:52px;height:52px;flex-shrink:0;background:#fffdf8;border-radius:12px;padding:4px}
.teaser-items>span{font-size:12px;color:#8a6a3a}
.teaser-actions{display:flex;gap:8px;align-items:center}.teaser-lab{background:#fffdf8}
.gacha-button{display:inline-flex;flex-direction:column;align-items:center;justify-content:center;min-height:48px;padding:7px 18px;border-radius:12px;background:var(--sun);color:var(--navy);border:2px solid var(--navy);box-shadow:0 4px 0 var(--navy);font-weight:800;font-size:14px;text-decoration:none;line-height:1.3;transition:transform .1s,box-shadow .1s}
.gacha-button span{font-size:10px;font-weight:700}
.gacha-button:hover{transform:translateY(-1px)}.gacha-button:active{transform:translateY(3px);box-shadow:0 1px 0 var(--navy)}
.gacha-button.is-empty{background:#f1ece2;color:var(--lab-muted);border-color:#cfc6b4;box-shadow:0 4px 0 #cfc6b4}
.reward-tickets{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin:10px 0 0}
.ticket-pill{display:inline-block;font-size:12px;font-weight:800;padding:5px 12px;border-radius:8px;background:var(--sun);color:var(--navy);border:2px dashed var(--navy)}
.ticket-pill.bonus{background:#ff8a3d;color:white;border-color:white}
.reward-actions .gacha-button{order:-1}
.gacha-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:26px;align-items:start;margin-top:6px}
.gacha-stage{background:var(--navy);border-radius:22px;padding:26px 20px 22px;text-align:center;color:white}
.machine{width:170px;height:auto;display:block;margin:0 auto}
.machine.is-turning{animation:shake .3s ease-in-out 3}
.gacha-result{margin-top:16px;min-height:120px}
.gacha-hint{font-size:13px;color:#b8c2d6;margin:30px 0 0}
.pull-result{background:var(--card);color:var(--lab-ink);border-radius:18px;padding:16px 16px 14px;border:4px solid var(--fc)}
.pull-result.r2{border-color:#e0a400}.pull-result.r3{border-color:#e4572e;background:linear-gradient(165deg,#fffdf5 50%,#ffe7d6)}
.pull-result.is-fresh{animation:reveal .7s cubic-bezier(.2,1.4,.4,1) both}
.pull-label{margin:0;font-size:14px;font-weight:800;color:var(--fc)}
.pull-item{width:120px;height:120px;margin:6px auto;background:var(--fs);border-radius:50%;padding:14px}
.pull-result h2{font-size:21px;margin:4px 0 6px}
.pull-note{font-size:13px;line-height:1.8;margin:0 0 8px;text-align:left}
.pull-sub{font-size:11px;line-height:1.7;color:var(--lab-muted);margin:0;text-align:left}
.gacha-panel h1{font-family:inherit;font-size:28px;font-weight:800;margin:0 0 8px}
.gacha-rule{font-size:13px;line-height:1.8;color:var(--lab-muted);margin:0 0 12px}
.bonus-tickets{font-size:13px;font-weight:700;background:#ffe3cc;color:#a14a10;border-radius:10px;padding:10px 14px;margin:0 0 12px}.bonus-tickets b{font-size:17px}
.gacha-fields{display:flex;flex-direction:column;gap:10px}
.gacha-row{display:flex;align-items:center;gap:12px;background:var(--card);border:2px solid var(--lab-line);border-left:6px solid var(--fc);border-radius:14px;padding:10px 12px}
.gacha-row .tile-icon{width:40px;height:40px;font-size:22px;margin:0;flex-shrink:0}
.gacha-row-text{flex:1;min-width:0;display:flex;flex-direction:column}.gacha-row-text b{font-size:15px}.gacha-row-text span{font-size:11px;color:var(--lab-muted)}
.gacha-row-buttons{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.pull-button{min-height:44px;padding:8px 16px;border-radius:10px;border:2px solid var(--fc);background:var(--fc);color:white;font-weight:800;font-size:13px}
.pull-button.bonus{background:#fff;color:#c2560f;border-color:#ff8a3d}
.pull-button:disabled{background:#eee8dc;border-color:#ddd5c5;color:#a9a090;opacity:1}
.gacha-empty{font-size:13px;margin:14px 0 0}.gacha-empty a{color:var(--navy);font-weight:700}
.gacha-rates{font-size:11px;color:var(--lab-muted);margin:14px 0 0}
.gacha-banner{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:22px;padding:16px 20px;border-radius:16px;background:var(--sun);color:var(--navy);text-decoration:none;border:2px solid var(--navy);box-shadow:0 4px 0 var(--navy)}
.gacha-banner.is-empty{background:var(--card);border-color:var(--lab-line);box-shadow:none}
.banner-text{display:flex;flex-direction:column}.banner-text b{font-size:16px}.banner-text span{font-size:12px}.banner-go{font-size:22px;font-weight:800}
.lab-room{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.shelf{background:linear-gradient(var(--fs),#fffdf8 120px);border:2px solid var(--lab-line);border-radius:20px;padding:16px 16px 12px}
.shelf-head{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:10px}
.shelf-head h2{display:flex;align-items:center;gap:7px;font-size:16px;margin:0;color:var(--fc)}.shelf-head span{font-size:11px;color:var(--lab-muted)}
.shelf-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));column-gap:6px;row-gap:0}
.slot{display:flex;flex-direction:column;align-items:center;justify-content:flex-end;gap:2px;min-height:96px;padding:6px 2px 4px;border:0;border-bottom:7px solid #c98b4f;background:transparent;font:inherit;color:var(--lab-ink);box-shadow:0 3px 0 #a86f3a}
.slot .item-svg{width:56px;height:56px}
.slot-name{font-size:10px;line-height:1.35;text-align:center;min-height:2.7em;display:flex;align-items:center}
.slot.missing .slot-name{color:#b3a993}
.slot.locked{justify-content:center}
button.slot{cursor:pointer;border-radius:10px 10px 0 0}button.slot:hover{background:#ffffffa0}button.slot:hover .item-svg{transform:translateY(-3px) scale(1.06)}
.slot .item-svg{transition:transform .15s}
.slot.r3 .item-svg{filter:drop-shadow(0 0 6px #ffcf5a)}
.shelf-note{font-size:11px;color:var(--lab-muted);margin:12px 0 0}.shelf-note .lock{width:15px;height:15px}
.item-dialog{border:0;border-radius:22px;padding:24px 22px 20px;max-width:min(380px,calc(100vw - 32px));width:100%;background:var(--card);color:var(--lab-ink);text-align:center;box-shadow:0 20px 60px #0005}
.item-dialog::backdrop{background:#1f2a44b0}
.dialog-item{width:140px;height:140px;margin:0 auto 10px;border-radius:50%;background:var(--fs);padding:16px}
.dialog-meta{font-size:12px;color:var(--lab-muted);margin:0}
.item-dialog h2{font-size:22px;margin:6px 0 10px}
.dialog-note{font-size:13px;line-height:1.85;text-align:left;margin:0 0 10px}
.dialog-sub{font-size:11px;color:var(--lab-muted);margin:0 0 16px}
.dialog-close{background:var(--navy);border-color:var(--navy);min-width:140px}
@keyframes shake{0%,100%{transform:rotate(0)}25%{transform:rotate(-5deg)}75%{transform:rotate(5deg)}}

.storage-note{margin-top:34px}
.lab-footer{max-width:1040px;margin:30px auto 0;padding:22px 24px;border-top:1px solid var(--lab-line);font-size:12px}
.lab-footer span{float:right;color:var(--lab-muted);font-size:10px}.lab-footer p{font-size:10px;line-height:1.9;color:var(--lab-muted);margin:10px 0}

@media(max-width:900px){.field-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.rule-list{grid-template-columns:1fr}
  .lab-teaser{grid-template-columns:1fr auto}.teaser-items{grid-column:1/-1;grid-row:2}.gacha-layout{grid-template-columns:1fr}.lab-room{grid-template-columns:1fr}}
@media(max-width:700px){.lab-teaser{grid-template-columns:1fr;padding:16px}.teaser-items{grid-row:auto}.teaser-items .item-svg{width:46px;height:46px}.teaser-actions .gacha-button{flex:1}
  .shelf{padding:14px 10px 10px}.slot{min-height:88px}.slot .item-svg{width:48px;height:48px}.gacha-row{flex-wrap:wrap}.gacha-row-buttons{width:100%}.gacha-row-buttons .pull-button{flex:1}
  .lab-nav a{padding:10px 8px;font-size:12px}
  .gacha-stage{padding:18px 14px}.machine{width:118px}.gacha-result{min-height:0;margin-top:10px}.gacha-hint{margin:6px 0 0}}
@media(max-width:700px){
  .lab-hero{grid-template-columns:1fr;margin:18px 0 26px;gap:12px}
  .hero-text{padding:24px 20px}.sp{display:inline}
  .field-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .field-tile{padding:14px 13px 13px}.tile-icon{width:40px;height:40px;font-size:22px}.tile-name{font-size:16px}
  .field-tile:last-child{grid-column:1/-1}
  .mini-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
  .mini-card{min-height:132px;padding:10px 9px}.mini-icon{width:32px;height:32px;font-size:18px}.mini-title{font-size:11px}
  .mini-card .grade-chip{right:7px;top:7px}
  .lab-question{margin-top:14px}
  .law-card{padding:18px 16px 14px}.law-title{font-size:18px}
  .reward-box{padding:20px 12px;margin-left:-8px;margin-right:-8px}
  .reward-actions .primary{width:100%;text-align:center}
}
@media(max-width:620px){main{padding:0 16px}.lab-header{padding:10px 12px}.lab-brand{font-size:15px;gap:8px}.lab-trial{display:none}.lab-nav a{padding:10px 9px}.lab-footer{padding:18px 16px}.lab-footer span{float:none;display:block;margin-top:6px}}
.lab-brand,.lab-nav a,.streak-chip{white-space:nowrap}
@media(max-width:440px){.brand-name{display:none}.lab-nav{gap:2px}.lab-nav a{padding:10px 7px}}
@media(max-width:360px){.mini-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.lab-mark{width:30px;height:30px}.streak-chip{margin-left:2px;padding:6px 8px}}
@media(prefers-reduced-motion:reduce){.reveal,.is-new .reward-title,.law-card.grade-gold:after,.machine.is-turning,.pull-result.is-fresh{animation:none}.field-tile,a.mini-card,.slot .item-svg,.gacha-button{transition:none}}