/* Green Flask Science: Unit review activities */
.u1hero{position:relative;border-radius:16px;overflow:hidden;margin:6px 0 26px;background:#06110d;color:#fff;min-height:300px;display:flex;align-items:flex-end}
.u1hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.u1hero::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(6,17,13,.88) 0%,rgba(6,17,13,.45) 46%,rgba(6,17,13,.05) 100%)}
.u1hero .tx{position:relative;z-index:1;padding:26px 24px 22px;max-width:640px}
.u1hero .tn{font-size:.78rem;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:#7bf5b2}
.u1hero .ht{font-weight:500;margin:6px 0 8px!important;color:#fff;font-size:clamp(1.5rem,4vw,2.2rem)!important;line-height:1.12}
.u1hero p{margin:0!important;color:#dbe9e1!important;font-size:1.05rem}
.u1hero .cr{position:absolute;right:10px;bottom:6px;z-index:2;font-size:.68rem;color:rgba(255,255,255,.7);max-width:55%;text-align:right}
.acts{display:flex;gap:10px;flex-wrap:wrap;margin:0 0 6px}
.actb{display:flex;align-items:center;gap:8px;padding:7px 14px;border:1px solid var(--line);border-radius:999px;font-size:.9rem;font-weight:500;background:var(--bg);text-decoration:none;color:var(--ink)!important}
.actb i{font-style:normal;display:grid;place-items:center;width:20px;height:20px;border-radius:50%;background:var(--line);font-size:.72rem;font-weight:600;color:var(--ink)}
.actb.done i{background:var(--apes);color:#fff}
.act{scroll-margin-top:84px}
.act h2{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.act h2 .no{font-size:.72rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--apes);border:1.5px solid var(--apes);border-radius:999px;padding:3px 10px}
figure.ph{margin:0 0 12px}
figure.ph img{display:block;width:100%;max-height:420px;object-fit:cover;border-radius:12px;background:var(--panel)}
figure.ph figcaption{font-size:.74rem;color:var(--muted);margin-top:5px}
.pbar{height:6px;border-radius:3px;background:var(--line);overflow:hidden;margin:0 0 14px}
.pbar i{display:block;height:100%;background:var(--apes);transition:width .3s}
.ahead{display:flex;justify-content:space-between;color:var(--muted);font-size:.82rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;margin-bottom:6px}
.qt{font-size:1.15rem;font-weight:500;margin:6px 0 12px}
.o1s{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:10px}
.o1s.col{grid-template-columns:1fr}
.o1{padding:11px 14px;border:1.5px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);font:inherit;text-align:left;cursor:pointer;transition:border-color .15s,background .15s}
.o1:hover:not(:disabled){border-color:var(--ink)}
.o1.good{border-color:var(--apes);background:color-mix(in srgb,var(--apes) 14%,var(--bg))}
.o1.bad{border-color:#d64545;background:color-mix(in srgb,#d64545 11%,var(--bg))}
.o1:disabled{cursor:default}
.fbx{margin-top:12px;min-height:1.4em}
.fbx p{margin:0 0 10px}
.pair{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.pair button{padding:0;border:2px solid var(--line);border-radius:12px;overflow:hidden;background:var(--bg);color:var(--ink);cursor:pointer;text-align:left;font:inherit}
.pair button:hover:not(:disabled){border-color:var(--ink)}
.pair button.good{border-color:var(--apes)}
.pair button.bad{border-color:#d64545}
.pair img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover}
.pair span{display:block;padding:8px 12px;font-weight:500}
.pair small{display:block;padding:0 12px 8px;font-size:.7rem;color:var(--muted)}
@media (max-width:560px){.pair{grid-template-columns:1fr}.pair img{aspect-ratio:16/9}}
.hintb{border:0;background:none;color:var(--accent);font:inherit;font-size:.9rem;cursor:pointer;padding:0;margin:0 0 10px;text-decoration:underline}
.sumb{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin:14px 0}
.sumb div{border:1px solid var(--line);border-radius:10px;padding:12px 14px;background:var(--bg)}
.sumb b{display:block;font-size:1.4rem;font-weight:500;font-variant-numeric:tabular-nums}
.sumb span{font-size:.78rem;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
.sumb .ok2 b{color:var(--apes)}
.lab-img{border-radius:12px;overflow:hidden;position:relative;background:var(--panel);margin-bottom:12px}
.lab-img img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover}
.lab-img .ov{position:absolute;inset:0;pointer-events:none;transition:opacity .25s,background .25s}
.lab-img .cp{position:absolute;right:8px;bottom:5px;font-size:.66rem;color:rgba(255,255,255,.85);text-shadow:0 1px 3px rgba(0,0,0,.7);max-width:80%;text-align:right}
.meter2{display:grid;gap:4px;margin:8px 0}
.meter2 .l{display:flex;justify-content:space-between;font-size:.9rem}
.meter2 .tr{height:14px;border-radius:7px;background:var(--panel);border:1px solid var(--line);overflow:hidden}
.meter2 .tr i{display:block;height:100%;background:var(--apes);width:0;transition:width .3s,background .3s}
.meter2.warn .tr i{background:#e0a21a}
.meter2.bad .tr i{background:#d64545}
.meter2 .tr i.chem{background:var(--chem)}
.missions{list-style:none;padding:0;margin:14px 0 0}
.missions li{display:flex;gap:10px;align-items:center;padding:9px 12px;border:1px solid var(--line);border-radius:8px;margin:6px 0;background:var(--bg);font-size:.95rem}
.missions li::before{content:"";flex:none;width:18px;height:18px;border-radius:50%;border:2px solid var(--line);background:var(--bg)}
.missions li.ok{border-color:var(--apes);background:color-mix(in srgb,var(--apes) 9%,var(--bg))}
.missions li.ok::before{border-color:var(--apes);background:var(--apes) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3.5 8.5l3 3 6-7' fill='none' stroke='white' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/12px no-repeat}
.ucards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px;margin:16px 0}
.ucard{position:relative;display:flex;flex-direction:column;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--bg);text-decoration:none;color:var(--ink)!important;transition:transform .15s,box-shadow .15s}
.ucard:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(0,0,0,.1)}
.ucard img{display:block;width:100%;height:auto;aspect-ratio:16/10;object-fit:cover;background:var(--panel)}
.ucard .b{padding:14px 16px 16px;display:grid;gap:4px}
.ucard .tn{font-size:.72rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--apes)}
.ucard h3{margin:0;font-size:1.12rem}
.ucard p{margin:0;color:var(--muted);font-size:.9rem}
.ucard .dots{display:flex;gap:6px;margin-top:6px;position:static!important;order:5;justify-self:start;left:auto!important;transform:none!important}
.ucard .dots i{width:22px;height:6px;border-radius:3px;background:var(--line)}
.ucard .dots i.on{background:var(--apes)}
.units{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:10px;margin:14px 0}
.unit{border:1px solid var(--line);border-radius:10px;padding:12px 14px;background:var(--bg);display:grid;gap:2px}
.unit b{font-weight:500}
.unit span{font-size:.82rem;color:var(--muted)}
.unit.live{border-color:var(--apes);background:color-mix(in srgb,var(--apes) 8%,var(--bg))}
.unit .st{font-size:.7rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.unit.live .st{color:var(--apes)}
.tnav{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;margin:26px 0 8px}
.credits{font-size:.78rem;color:var(--muted)}
.credits li{margin:2px 0}
.shake{animation:shk .3s}
@keyframes shk{25%{transform:translateX(-5px)}75%{transform:translateX(5px)}}
.warb{display:grid;grid-template-columns:auto 1fr;gap:10px 14px;align-items:center}
.zonebtns{display:flex;gap:6px;flex-wrap:wrap}
.zonebtns button{padding:7px 14px;border:1.5px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink);font:inherit;cursor:pointer}
.zonebtns button[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.tree{width:100%;max-width:340px;display:block;margin:0 auto}
.stepb{display:flex;gap:10px;align-items:flex-start;flex-wrap:wrap}
.chipc{display:grid;gap:2px;text-align:left;padding:10px 14px;border:1.5px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);font:inherit;cursor:pointer;max-width:100%}
.chipc:hover:not(:disabled){border-color:var(--ink)}
.chipc.used{border-color:var(--apes);background:color-mix(in srgb,var(--apes) 10%,var(--bg))}
.chipc small{color:var(--muted)}
.slots{display:grid;gap:8px;margin:12px 0}
.slot{display:flex;gap:10px;align-items:center;padding:10px 14px;border:1.5px dashed var(--line);border-radius:10px;min-height:48px;color:var(--muted)}
.slot.f{border-style:solid;border-color:var(--apes);color:var(--ink);background:color-mix(in srgb,var(--apes) 9%,var(--bg))}
.slot b{flex:none;width:26px;height:26px;border-radius:50%;background:var(--line);color:var(--ink);display:grid;place-items:center;font-size:.85rem}
.slot.f b{background:var(--apes);color:#fff}
.pyr{display:grid;gap:6px;justify-items:center;margin:12px 0}
.pyr .lv{display:flex;align-items:center;justify-content:center;gap:10px;height:44px;border-radius:6px;color:#fff;font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap;transition:width .3s;min-width:90px}
.pyr .lv span{font-weight:400;font-size:.82rem;opacity:.9}
.numq{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:10px 0}
.numq input{width:130px;padding:9px 12px;font:inherit;border:1.5px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink);text-align:right}
.numq input.ok{border-color:var(--apes)}
.numq input.no{border-color:#d64545}
.preds{display:grid;gap:12px}
.pred{display:grid;grid-template-columns:96px 1fr;gap:12px;align-items:center;border:1px solid var(--line);border-radius:12px;padding:10px;background:var(--bg)}
.pred img{width:96px;height:72px;object-fit:cover;border-radius:8px}
.pred .o1s{grid-template-columns:1fr 1fr;margin-top:6px}
@media (max-width:480px){.pred{grid-template-columns:1fr}.pred img{width:100%;height:120px}}
.lab-img img.top{position:absolute;inset:0;height:100%;opacity:0;transition:opacity .45s}
.lab-img.tall img{aspect-ratio:16/10}
.ovb{background:#6b4a2b}
.kv{display:flex;gap:18px;flex-wrap:wrap;margin:6px 0}
.kv div{min-width:110px}
.kv b{display:block;font-size:1.5rem;font-weight:500;font-variant-numeric:tabular-nums}
.kv span{font-size:.76rem;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
dl.terms{margin:0;display:grid;gap:10px}
dl.terms dt{font-weight:600}
dl.terms dd{margin:0;color:var(--muted)}

/* test review */
.tabsx{display:flex;gap:6px;margin:0 0 12px;flex-wrap:wrap}
.tabx{font:inherit;font-weight:500;padding:10px 18px;min-height:44px;border-radius:999px;border:1px solid var(--line,#d9e1db);background:transparent;color:inherit;cursor:pointer}
.tabx.on{background:#0f6b3e;border-color:#0f6b3e;color:#fff}
.fcard{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:8px;text-align:center;width:100%;min-height:180px;padding:24px;border-radius:16px;border:1px solid var(--line,#d9e1db);background:var(--panel,transparent);color:inherit;font:inherit;font-size:1.05rem;cursor:pointer}
.fcard b{font-size:1.5rem;font-weight:500}.fcard small{opacity:.7}
.fcard.back{background:rgba(20,163,90,.1)}
.selx{font:inherit;min-height:44px;padding:6px 10px;border-radius:10px;border:1px solid var(--line,#d9e1db);background:transparent;color:inherit;max-width:100%}
.wk{display:flex;flex-wrap:wrap;gap:8px}
.tcta{display:flex;flex-wrap:wrap;gap:4px 14px;align-items:center;margin:14px 0;padding:16px 18px;border-radius:14px;background:#0f6b3e;color:#fff;text-decoration:none}
.tcta b{font-size:1.1rem;font-weight:500}.tcta span{flex:1 1 220px;opacity:.92}.tcta i{font-style:normal;font-weight:600}
.tcta:focus-visible{outline:3px solid #7bf5b2;outline-offset:2px}
.u1hero .tn{color:#7bf5b2!important}
.u1hero .tx{padding-bottom:34px}
@media (max-width:560px){.u1hero .cr{max-width:90%;bottom:5px}}