@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@400;500;600;700;800&display=swap');
:root{font-family:'DM Sans',sans-serif;color:#203c35;background:#f6f7f2;--green:#174b3e;--muted:#6d7c75;--line:#dce3d9;--lime:#deefaa}*{box-sizing:border-box}body{margin:0}header{height:92px;display:flex;align-items:center;justify-content:space-between;padding:0 5vw;border-bottom:1px solid var(--line);background:#fffefa}.brand{display:flex;align-items:center;gap:12px;font-family:Manrope,sans-serif;font-size:29px;font-weight:800;text-decoration:none;color:var(--green)}.brand-icon{background:var(--green);color:var(--lime);font-size:23px;border-radius:14px;padding:7px 14px}.brand-caption{font-family:'DM Sans',sans-serif;font-size:10px;letter-spacing:2px;margin-left:20px;color:var(--muted)}nav{display:flex;gap:8px;align-items:center}main{max-width:1240px;padding:48px 32px 80px;margin:auto;min-height:80vh}h1,h2,h3{font-family:Manrope,sans-serif;letter-spacing:-.04em}h1{font-size:clamp(32px,4vw,54px);line-height:1.1;margin:16px 0 20px}h2{font-size:26px;margin:0 0 18px}h3{font-size:19px}p{line-height:1.65}.muted,small{color:var(--muted)}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:700;text-transform:uppercase}.hero{display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:center;margin-bottom:38px}.hero p{max-width:540px;color:var(--muted)}.illustration{height:270px;border-radius:28px;background:var(--green);position:relative;overflow:hidden;color:var(--lime);display:flex;align-items:center;justify-content:center}.illustration svg{height:230px;width:260px}.illustration .caption{position:absolute;bottom:18px;left:24px;font-size:10px;letter-spacing:2px}.card{background:#fffefa;border:1px solid var(--line);border-radius:20px;padding:28px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}.stack>*+*{margin-top:20px}.row{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap}.badge{font-size:11px;font-weight:700;letter-spacing:1px;border-radius:30px;background:#eaf0e3;padding:7px 11px;display:inline-block}.chip{padding:6px 10px;border-radius:8px;background:#eef2e9;font-size:12px}.button,button{font:inherit;font-size:14px;font-weight:600;border:1px solid var(--line);border-radius:10px;padding:11px 18px;cursor:pointer;color:var(--green);background:#fffefa;display:inline-block;text-decoration:none}.primary{background:var(--green);color:white;border-color:var(--green)}button:hover,.button:hover{filter:brightness(.96)}button:disabled{opacity:.55;cursor:wait}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #a6bd57;outline-offset:3px}.danger{color:#a23f36}.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}.tabs .active{background:var(--green);color:#fff}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}label{display:block;font-size:13px;font-weight:600}input,select,textarea{width:100%;padding:12px;border:1px solid #cbd6ca;border-radius:9px;font:inherit;background:white;margin-top:7px;color:#203c35}input[type=checkbox],input[type=radio]{width:auto;margin:0 9px 0 0}.check{padding:12px 0}.form-actions{margin-top:22px}.auth{max-width:460px}.auth label{margin:18px 0}.empty{padding:30px;text-align:center;background:#edf1e7;border-radius:14px}.split{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:24px}.question-prompt{font-size:21px;line-height:1.65;margin:26px 0;white-space:pre-line}.source-image{display:block;width:100%;max-width:850px;height:auto;margin:10px auto;background:transparent}.source-frame{background:#fffefa;padding:12px;border-radius:12px}.answer{display:flex;align-items:flex-start;padding:17px;border:1px solid var(--line);border-radius:12px;margin:12px 0;cursor:pointer;font-size:16px;font-weight:400;line-height:1.5;white-space:pre-line}.answer.selected{background:#eef5dd;border-color:#7d9b54}.letter{font-weight:700;margin-right:14px}.timer{font-family:Manrope;font-size:34px;font-weight:800;font-variant-numeric:tabular-nums}.palette{display:grid;grid-template-columns:repeat(5,1fr);gap:7px;margin:20px 0}.palette button{padding:9px 0}.palette .answered{background:#e1edcf}.palette .current{border:2px solid var(--green)}.sticky{position:sticky;top:20px;align-self:start}.progress{height:5px;background:#e5ebdf;border-radius:10px;overflow:hidden;margin:20px 0}.progress>div{height:100%;background:#87a04e}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:25px 0}.stat{background:#edf2e4;padding:20px;border-radius:14px}.stat strong{font-size:30px;display:block;margin-bottom:5px}.correct{border-left:4px solid #6b9554}.incorrect{border-left:4px solid #be6550}.explanation{border-top:1px solid var(--line);margin-top:20px;padding-top:16px;white-space:pre-line;line-height:1.7}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;font-size:14px}td,th{text-align:left;border-bottom:1px solid var(--line);padding:14px 10px}th{color:var(--muted);font-size:11px;letter-spacing:1px;text-transform:uppercase}#notice{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:#203c35;color:white;padding:14px 24px;border-radius:12px;max-width:90vw;z-index:10;display:none}footer{border-top:1px solid var(--line);padding:24px 5vw;color:var(--muted);font-size:12px;display:flex;justify-content:space-between}.setup{border-left:4px solid #9caf55}.fine{font-size:12px;line-height:1.6}.loading{padding:60px;text-align:center}details{margin-top:16px}summary{cursor:pointer;font-size:13px;color:var(--muted)}.intro-meta{display:flex;gap:12px;flex-wrap:wrap;margin:20px 0}dialog{border:1px solid var(--line);border-radius:20px;padding:30px;max-width:500px}dialog::backdrop{background:#16392e66}@media(max-width:760px){header{height:auto;min-height:78px;padding:16px 20px;gap:12px;flex-wrap:wrap}.brand-caption{display:none}main{padding:28px 18px 60px}.hero,.split{grid-template-columns:1fr}.illustration{height:180px}.illustration svg{height:160px}.sticky{position:static}.form-grid{grid-template-columns:1fr}.stats{grid-template-columns:1fr 1fr}.card{padding:20px}nav button{padding:8px 12px}.question-prompt{font-size:18px}footer span{display:none}}