:root{--ink:#193e3a;--muted:#687770;--paper:#f7f6f0;--line:#dce1d8;--accent:#cce19f}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 Arial,Helvetica,sans-serif}a{color:inherit}button,input,select{font:inherit;color:inherit}button,a,input,select{outline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #71964a}button{cursor:pointer;min-height:46px;border:1px solid #becbbd;background:white;border-radius:7px;padding:10px 16px;font-weight:600}button:disabled{opacity:.5;cursor:default}header{max-width:1100px;margin:auto;display:flex;justify-content:space-between;gap:16px;padding:22px 28px;border-bottom:1px solid var(--line);font-size:14px}.brand{font-weight:700;text-decoration:none}.brand span{color:var(--muted);font-weight:400}main{max-width:940px;margin:auto;padding:36px 24px 24px}h1{font:clamp(36px,6vw,54px)/1.12 Georgia,serif;letter-spacing:-1.5px;margin:14px 0}h2{font:27px/1.25 Georgia,serif;margin:0 0 16px}.intro{color:var(--muted);margin:16px 0 24px}.eyebrow{font-size:11px;letter-spacing:1.5px;font-weight:700;color:var(--muted)}.panel{background:white;border:1px solid var(--line);border-radius:12px;padding:24px;margin-bottom:20px}.filters{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:14px}label{font-size:13px;font-weight:600;display:flex;flex-direction:column;gap:7px}select,input{width:100%;min-height:46px;border:1px solid #becbbd;border-radius:6px;background:#fcfdf9;padding:10px;font-size:16px}.muted,.fine,.source{color:var(--muted)}.fine{font-size:12px}.source{font-size:12px;margin:24px 0}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.primary{background:var(--ink);color:white;border-color:var(--ink)}.primary:hover{background:#28564b}.roundbar{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:14px}.roundbar h2{margin:0}.small{font-size:13px;padding:8px 12px;min-height:44px}.compact{margin:8px 0 14px;justify-content:space-between}progress{accent-color:#56825a;width:100%;height:8px;margin-top:14px}.card{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:24px;text-align:center;width:100%;min-height:280px;padding:30px;background:#edf1e6;border-color:#d2ddc7;font-weight:400}.card[aria-expanded=true]{background:#f4f7ed}.front{font-family:Georgia,serif;font-size:clamp(24px,4vw,34px);line-height:1.3;overflow-wrap:anywhere}.answer{font-size:18px;line-height:1.65;white-space:pre-line;overflow-wrap:anywhere;max-width:700px}.card[aria-expanded=true] .front{font-size:23px}.flip-hint{font-size:12px;color:var(--muted)}.guide-item{padding:16px 0;border-bottom:1px solid var(--line)}.guide-item h3{margin:0;font-size:17px}.guide-item p{margin:8px 0;white-space:pre-line}.guide-item .fine{margin:4px 0}footer{max-width:940px;margin:auto;padding:18px 24px 30px;color:var(--muted);font-size:12px;border-top:1px solid var(--line)}@media(max-width:650px){header{padding:18px 16px}.brand span{display:none}main{padding:26px 16px}.panel{padding:18px}.filters{grid-template-columns:1fr}.actions>button{flex:1;min-width:130px}.card{padding:24px 17px;min-height:270px}.roundbar{font-size:12px;flex-wrap:wrap}.answer{font-size:16px}.front{font-size:27px}}
.chapter-picker{margin-bottom:18px;border:1px solid var(--line);border-radius:8px;padding:12px}.chapter-picker summary{cursor:pointer;font-weight:700}.chapter-options{display:grid;grid-template-columns:1fr 1fr;max-height:230px;overflow:auto;gap:4px;margin-top:10px}.chapter-options label,.card-types label{display:flex;flex-direction:row;align-items:center;gap:8px;min-height:44px;padding:7px;font-size:14px}.chapter-options input,.card-types input{width:auto;min-height:0;accent-color:var(--ink)}.card-types{display:flex;flex-wrap:wrap;gap:8px;border:0;padding:0;margin:0 0 14px}.card-types legend{font-size:13px;font-weight:700}.study-dialog{max-width:540px;width:92%;border:1px solid #becbbd;border-radius:12px;color:var(--ink);padding:24px}.study-dialog textarea{display:block;width:100%;font:inherit;padding:10px;margin:10px 0}.study-dialog button{margin-right:10px}@media(max-width:650px){.chapter-options{grid-template-columns:1fr;max-height:220px}.card-types{gap:0}}

header{flex-wrap:wrap;gap:12px}header a{min-height:36px;display:inline-flex;align-items:center}

.card-navigation{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.card-navigation>button{min-width:0;padding:10px 6px}#setup>summary{cursor:pointer;font-weight:700;min-height:44px}#setup[open]>summary{margin-bottom:16px}