html.cvll-lock{overflow:hidden}
.cvll-ov{position:fixed;inset:0;z-index:99999;background:rgba(10,18,48,.6);display:flex;justify-content:center;align-items:stretch;padding:0}
.cvll-ov[hidden]{display:none}
.cvll-lab{background:var(--bg);color:var(--fg);width:min(920px,100%);max-height:100%;overflow-y:auto;overscroll-behavior:contain;padding-block:max(14px,env(safe-area-inset-top,0px)) max(20px,env(safe-area-inset-bottom,0px));padding-inline:max(16px,env(safe-area-inset-left,0px)) max(16px,env(safe-area-inset-right,0px));font:400 1.0625rem/1.6 var(--ff-body)}
@media(min-width:780px){.cvll-ov{padding:24px}.cvll-lab{border-radius:26px;box-shadow:var(--shadow);padding-inline:28px}}
.cvll-lab h2,.cvll-lab h3{font-family:var(--ff-display);line-height:1.2;margin:0;color:var(--fg)}
.cvll-lab h2{font-size:1.5rem}
.cvll-lab h3{font-size:1.1rem;margin-bottom:8px}
.cvll-lab p{margin:0 0 8px}
.cvll-lab .card{padding:18px;border-radius:20px;margin-block:12px}
.cvll-hd{display:flex;gap:12px;align-items:flex-start;justify-content:space-between;padding-block:4px 10px}
.cvll-hd p{margin:0}
.cvll-lab .btn-sm{min-height:44px;padding:8px 16px}
.cvll-lab .btn:disabled{opacity:.55;cursor:not-allowed}
.cvll-lab :focus-visible,.cvll-ov :focus-visible{outline:3px solid var(--blue);outline-offset:2px}
.cvll-lab [tabindex='-1']:focus{outline:none}
.cvll-lab [tabindex='-1']:focus-visible{outline:3px solid var(--blue);outline-offset:2px}
.cvll-note{background:var(--bg-alt);border-radius:14px;padding:10px 14px}
.cvll-note a{color:var(--blue-ink);font-weight:700}
.cvll-tabs{display:flex;gap:4px;border-bottom:2px solid var(--line);margin-block:12px;overflow-x:auto}
.cvll-tab{background:none;border:0;border-bottom:4px solid transparent;padding:12px 14px;min-height:48px;font:700 .95rem var(--ff-display);color:var(--muted);cursor:pointer;white-space:nowrap}
.cvll-tab[aria-selected='true']{color:var(--blue-ink);border-bottom-color:var(--blue)}
.cvll-badge{background:var(--coral-tint);color:var(--coral-ink);border-radius:999px;padding:0 8px;margin-left:6px;font-size:.78rem}
.cvll-prog{font:700 .85rem var(--ff-display);color:var(--muted);margin-bottom:6px}
.cvll-bar{height:8px;background:var(--blue-tint);border-radius:99px;overflow:hidden;margin-block:6px 12px}
.cvll-bar i{display:block;height:100%;background:var(--blue)}
.cvll-rounds{list-style:none;padding:0;margin:0}
.cvll-rounds li{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;padding-block:10px;border-top:1px solid var(--line)}
.cvll-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.cvll-fs{border:0;padding:0;margin:0;min-width:0}
.cvll-prompt{font-weight:800;font-size:1.15rem;margin-bottom:12px;padding:0}
.cvll-opt{display:flex;gap:12px;align-items:center;border:2px solid var(--line);border-radius:14px;padding:12px 14px;margin-block:8px;min-height:48px;cursor:pointer;background:var(--surface)}
.cvll-opt input{width:22px;height:22px;flex:none;accent-color:var(--blue)}
.cvll-opt.right{border-color:var(--green);background:var(--green-tint)}
.cvll-opt.wrong{border-color:var(--coral-ink);background:var(--coral-tint)}
.cvll-opt.right::after{content:'Correct answer';margin-left:auto;font:700 .8rem var(--ff-display);color:var(--green-ink)}
.cvll-opt.wrong::after{content:'Your answer';margin-left:auto;font:700 .8rem var(--ff-display);color:var(--coral-ink)}
.cvll-lab input[type=text],.cvll-lab textarea,.cvll-lab select{width:100%;font:inherit;padding:12px;border-radius:12px;border:2px solid var(--line);background:var(--surface);color:var(--fg);min-height:48px}
.cvll-match{display:grid;grid-template-columns:1fr;gap:6px;margin-block:10px}
@media(min-width:600px){.cvll-match{grid-template-columns:1fr 1fr;align-items:center}}
.cvll-ord{list-style:none;padding:0;margin:0}
.cvll-ord li{display:flex;gap:8px;align-items:center;border:2px solid var(--line);border-radius:14px;padding:8px 12px;margin-block:8px;background:var(--surface)}
.cvll-ord li span{flex:1;font-weight:700}
.cvll-asset{overflow-x:auto;margin-block:10px}
.cvll-fb{border-radius:16px;padding:16px;margin-top:14px;border:2px solid var(--line)}
.cvll-fb.good{background:var(--green-tint);border-color:var(--green)}
.cvll-fb.part{background:var(--gold-tint);border-color:var(--gold)}
.cvll-fb.bad{background:var(--coral-tint);border-color:var(--coral-ink)}
.cvll-fb.info{background:var(--blue-tint);border-color:var(--blue)}
.cvll-steps{margin:0 0 8px;padding-left:1.4em;list-style:decimal}
.cvll-save{color:var(--muted);margin-top:10px}
.cvll-scroll{overflow-x:auto}
table.cvll-t{width:100%;border-collapse:collapse;font-size:.95rem}
table.cvll-t th,table.cvll-t td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line);vertical-align:top}
.cvll-lvl{display:inline-block;font:700 .8rem var(--ff-display);border-radius:99px;padding:3px 10px;background:var(--blue-tint);color:var(--blue-ink)}
.cvll-lvl.mastery{background:var(--green-tint);color:var(--green-ink)}
.cvll-lvl.review{background:var(--coral-tint);color:var(--coral-ink)}
.cvll-lvl.developing{background:var(--gold-tint);color:var(--gold-ink)}
.cvll-flash{min-height:170px;display:flex;flex-direction:column;justify-content:center;text-align:center;font-size:1.3rem;font-weight:800;padding:12px}
.cvll-flash small{display:block;color:var(--muted);font-weight:400;font-size:.9rem;margin-top:8px}
.cvll-sh{margin-top:18px}
.cvll-terms{list-style:disc;padding-left:1.3em;margin:0 0 8px}
.cvll-reteach{margin-top:8px}
.cvll-sr{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.cvll-entry{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:14px}
.cvll-sub{color:var(--muted);font-size:.95rem;flex:1 1 240px}
.cvll-foot{background:var(--bg-alt);border:2px solid var(--line);border-radius:22px;padding:22px;margin-top:28px}
.cvll-foot h2{font-size:1.3rem;margin-bottom:6px}
.cvll-hub-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:16px;margin-top:16px}
.cvll-hub-grid .card h3{margin-bottom:8px}
.cvll-hub-grid ul{list-style:none;padding:0;margin:0}
.cvll-hub-grid li{padding-block:4px}
.cvll-steps3{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,200px),1fr));gap:14px;margin-top:14px}
.cvll-steps3 .card{padding:16px}
@media (prefers-reduced-motion:reduce){.cvll-lab *{scroll-behavior:auto!important;transition:none!important;animation:none!important}}