:root{--paper:#fafaf8;--ink:#161616;--ink-muted:#5f5f5a;--rule:#d9d8d2;--ink-red:#b3261e;--ink-blue:#1f4e9c;--ink-green:#2e6b3f;--stock-manila:#f1e3bf;--font-ui:"Jost", system-ui, sans-serif;--font-type:"Courier Prime", ui-monospace, monospace}*{box-sizing:border-box}body{background:var(--paper);color:var(--ink);font:16px/1.5 var(--font-ui);margin:0}main{max-width:1040px;margin:0 auto;padding:32px 16px 64px}main.narrow{max-width:380px;padding-top:12vh}h1{letter-spacing:.02em;margin:0 0 4px;font-weight:500}h2{margin:4px 0;font-weight:500}a{color:var(--ink)}.muted{color:var(--ink-muted)}.mono{font-family:var(--font-type)}.error{color:var(--ink-red)}.stack{gap:12px;display:grid}label{color:var(--ink-muted);gap:4px;font-size:14px;display:grid}input,textarea{font:inherit;color:var(--ink);border:1px solid var(--rule);background:#fff;border-radius:2px;padding:8px 10px}input:focus,textarea:focus{outline:2px solid var(--ink);outline-offset:-1px}button{font:inherit;cursor:pointer;color:var(--ink);border:1px solid var(--ink);background:#fff;border-radius:2px;align-items:center;gap:8px;padding:8px 12px;font-size:14px;display:inline-flex}button:hover:not(:disabled){background:var(--ink);color:var(--paper)}button:disabled{opacity:.5;cursor:default}button.primary{background:var(--ink);color:var(--paper)}button.link{background:0 0;border-color:#0000;padding:8px 6px;text-decoration:underline}button.link:hover:not(:disabled){color:var(--ink);background:0 0}kbd{font-family:var(--font-type);opacity:.7;border:1px solid;border-radius:2px;padding:0 4px;font-size:11px}.masthead{border-bottom:1px solid var(--ink);justify-content:space-between;align-items:center;gap:12px;padding:12px 16px;display:flex}.wordmark{letter-spacing:.12em;text-transform:uppercase;font-size:13px;font-weight:500;text-decoration:none}.who{color:var(--ink-muted);align-items:center;gap:4px;font-size:14px;display:flex}.ledger{border-collapse:collapse;width:100%;margin-top:24px}.ledger th{text-align:left;letter-spacing:.08em;text-transform:uppercase;border-bottom:1px solid var(--ink);padding:8px;font-size:12px;font-weight:500}.ledger td{border-bottom:1px solid var(--rule);vertical-align:middle;padding:8px}.ledger td+td,.ledger th+th{border-left:1px solid var(--rule)}.ledger tbody tr{cursor:pointer}.ledger tbody tr:hover{background:#fff}.ledger .num{text-align:right;font-family:var(--font-type);width:96px}.ledger .ok{color:var(--ink-green);font-weight:700}.book-cell{align-items:center;gap:12px;display:flex}.book-cell img{object-fit:cover;border:1px solid var(--rule);width:28px;height:42px}.review{grid-template-columns:200px 1fr;align-items:start;gap:40px;display:grid}.book-card{position:sticky;top:24px}.book-card img{border:1px solid var(--rule);width:100%}.book-card .progress{border-top:1px solid var(--rule);margin-top:12px;padding-top:8px;font-size:13px}.question-card{background:var(--stock-manila);background-image:repeating-linear-gradient(#0000 0 31px,#1f4e9c2e 31px 32px);border:1px solid #d9c797;padding:24px 28px}.chips{flex-wrap:wrap;gap:6px;margin-bottom:16px;display:flex}.chips span{letter-spacing:.04em;text-transform:uppercase;border:1px solid var(--ink);border-radius:2px;padding:1px 6px;font-size:12px}.chips .mono{text-transform:none;border-color:#0000;margin-left:auto}.prompt{font-family:var(--font-type);margin:0 0 16px;font-size:20px;font-weight:400;line-height:1.4}.options{gap:6px;margin:0 0 16px;padding:0;list-style:none;display:grid}.options li{font-family:var(--font-type);border:1px solid #0000;gap:12px;padding:6px 10px;display:flex}.options li.correct{border-color:var(--ink-red);color:var(--ink-red);font-weight:700}.letter{font-family:var(--font-type);flex:none;width:1.2em;font-weight:700}.explanation{color:var(--ink-muted);margin:0 0 12px;font-size:14px}blockquote{font-family:var(--font-type);border-left:2px solid var(--ink-blue);color:var(--ink-blue);margin:0 0 16px;padding-left:12px;font-size:14px}.note{margin:8px 0 16px}.actions{border-top:1px solid #0003;flex-wrap:wrap;align-items:center;gap:8px;padding-top:16px;display:flex}.editor fieldset{border:none;gap:6px;margin:0;padding:0;display:grid}.editor legend{color:var(--ink-muted);margin-bottom:4px;font-size:14px}.option-edit{align-items:center;gap:8px;display:flex}.option-edit input[type=text],.option-edit input:not([type]){flex:1}.empty{text-align:center;padding:64px 0}.stamp{font-family:var(--font-type);letter-spacing:.15em;text-transform:uppercase;color:var(--ink-red);border:3px double var(--ink-red);border-radius:4px;padding:6px 14px;font-weight:700;display:inline-block;transform:rotate(-4deg)}@media (width<=720px){.review{grid-template-columns:1fr}.book-card{grid-template-columns:72px 1fr;column-gap:12px;display:grid;position:static}.book-card img{grid-row:span 4}.question-card{padding:16px}}