@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Libre+Caslon+Display&display=swap');
.condition-intro{margin-bottom:26px}.condition-intro h1{font-size:52px}.condition-intro>p:last-child{font-size:14px;line-height:1.6;color:#73796f}.condition-controls{display:flex;align-items:end;gap:20px;border-bottom:1px solid #dddfd3;padding-bottom:24px}.condition-controls label{display:flex;flex-direction:column;gap:9px;flex:1;max-width:440px;font-size:11px;color:#73796f}.condition-controls select{width:100%;padding:12px;background:#fdfcf8;border:1px solid #d5d9cb;border-radius:4px;color:#193d38;font-size:14px}.condition-caption{font-size:12px;line-height:1.7;color:#73796f;margin:20px 0}.condition-ladder{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.condition-card{padding:22px 20px;background:#fdfcf8;border:1px solid #dddfd3;border-radius:5px}.grade-card-heading h2{font-family:Georgia,serif;font-size:22px;margin:0 0 7px}.grade-card-heading>span{font-size:11px;color:#ad8241;letter-spacing:.8px}.condition-pair{display:flex;gap:10px;margin:16px 0}.condition-pair button{border:0;background:transparent;padding:0;width:50%;cursor:zoom-in}.condition-pair img{width:100%;aspect-ratio:1;object-fit:contain;mix-blend-mode:multiply}.condition-card>p{color:#73796f;font-size:12px;line-height:1.6;min-height:42px;margin-bottom:12px}.condition-card>small{font-size:10px;color:#7b8274}.condition-source{font-size:10px;line-height:1.7;color:#73796f;margin:25px 0}.condition-source a{color:#193d38}.modal-pair{display:grid;grid-template-columns:1fr 1fr;gap:18px}.modal-pair figure{margin:0;text-align:center}.modal-pair img{width:100%;object-fit:contain}.modal-pair figcaption{font-size:11px;color:#73796f;margin:8px 0 15px}.reference-pictures{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.reference-pictures button{border:1px solid #dddfd3;border-radius:4px;background:#fdfcf8;padding:16px;cursor:zoom-in}.reference-pictures img{width:100%;height:230px;object-fit:contain}.reference-pictures span{display:block;color:#73796f;font-size:11px;margin:12px 0 0}.flip-photo{position:absolute;bottom:52px;background:#f8f8ef;color:#36584d;border:1px solid #b9c2b3;border-radius:20px;padding:7px 15px;font-size:11px}@media(max-width:850px){.condition-intro h1{font-size:42px}.condition-ladder{grid-template-columns:repeat(2,minmax(0,1fr))}.condition-controls{align-items:stretch;flex-direction:column;gap:12px}.condition-controls label{max-width:none}.condition-controls button{align-self:start}.reference-pictures{grid-template-columns:1fr 1fr}}@media(max-width:520px){.condition-ladder{grid-template-columns:1fr}.condition-pair img{max-height:210px}.reference-pictures{grid-template-columns:1fr}.condition-intro h1{font-size:36px}.modal-pair{grid-template-columns:1fr}}
.specimen-display{width:100%}.specimen-display>div{width:100%;text-align:center}.with-comparison .specimen-display{display:flex;gap:16px;align-items:center}.with-comparison .specimen-display>div{width:50%}.with-comparison .coin{height:240px;width:100%}.specimen-display small{font-size:10px;color:#626f64;display:block;margin-top:10px}.another-photo{position:absolute;bottom:55px;border:1px solid #b9c2b3;background:#f8f8ef;padding:7px 13px;border-radius:20px;color:#36584d;font-size:11px}.image-credit{display:block!important;font-size:10px!important;color:#697a6b!important;margin-top:10px;line-height:1.5}.example-count{font-size:11px!important;color:#ad8241!important}.gallery-image{border:0;background:transparent;width:100%;padding:0;cursor:zoom-in}.photo-gallery{margin-top:24px}.photo-gallery .card h3{font-size:21px}.photo-gallery .card p{font-size:12px}.photo-gallery img{height:210px}#galleryCoin{min-width:250px;max-width:100%;padding:10px;border:1px solid #dddfd3;background:#fdfcf8;color:#193d38}.visual.with-comparison:before{display:none}@media(max-width:850px){.with-comparison .coin{height:210px}.another-photo{bottom:43px}.photo-gallery img{height:180px}header nav{gap:18px}}
.filters{display:grid;grid-template-columns:1fr 1.25fr 1.4fr 1fr;gap:14px;padding:18px 20px;border:1px solid var(--line);background:#eeeee4;border-radius:5px}.filter-label{font-size:10px;text-transform:uppercase;letter-spacing:1.4px;font-weight:700;color:var(--muted);display:flex;flex-direction:column;gap:9px}.filters select{background:#fdfcf8;color:var(--ink);border:1px solid var(--line);border-radius:4px;padding:10px 12px;width:100%;font-size:12px;text-transform:none;letter-spacing:0}.bank-count{margin-left:auto;font-size:11px;color:var(--muted)}.selection-note{font-size:11px;color:var(--muted);margin:13px 0 23px;line-height:1.6}.exercise-kind{font-size:10px!important;text-transform:uppercase;letter-spacing:1.3px;color:var(--gold)!important;margin-bottom:12px}.photo-label{max-width:90%;text-align:center;line-height:1.5;padding:0 10px}.field-notes{font-size:12px;line-height:1.6;border-top:1px solid var(--line);padding-top:15px}.field-notes dt{font-size:10px;font-weight:700;color:var(--gold);text-transform:uppercase;letter-spacing:1px;margin-top:12px}.field-notes dd{margin:3px 0 0;color:var(--muted)}.train-type{display:block;padding-left:0!important;color:var(--ink)!important}.progress-title{font-size:28px;margin:30px 0 15px}.topic-progress{border:1px solid var(--line);padding:8px 20px}.topic-progress>div{display:flex;justify-content:space-between;gap:15px;padding:14px 0;border-bottom:1px solid var(--line);font-size:12px}.topic-progress>div:last-child{border:0}.topic-progress span{color:var(--muted)}.qhead{gap:15px;line-height:1.6}.qhead>span:last-child{white-space:nowrap}@media(max-width:850px){.filters{grid-template-columns:1fr 1fr}.bank-count{width:100%;margin:3px 0}.qhead{font-size:10px}}@media(max-width:480px){.filters{padding:12px;gap:12px}.filters select{font-size:11px;padding:10px 6px}}
:root{--ink:#193d38;--paper:#f6f4ec;--gold:#ad8241;--muted:#73796f;--line:#dddfd3}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:'DM Sans',sans-serif}button,select{font:inherit}button{cursor:pointer}button:focus-visible,a:focus-visible,select:focus-visible{outline:3px solid var(--gold);outline-offset:3px}header{min-height:96px;display:flex;align-items:center;justify-content:space-between;gap:25px;border-bottom:1px solid var(--line);padding:18px 5%}.brand{color:var(--ink);text-decoration:none;font-size:27px;font-weight:700;letter-spacing:-1px}.brand small{font-size:9px;letter-spacing:2px;margin-left:8px}header>span{font-size:12px;color:var(--muted)}nav{display:flex;gap:25px}nav button,footer button{border:0;background:none;color:var(--muted);padding:12px 0}nav .active{color:var(--ink);box-shadow:0 2px var(--ink)}main{max-width:1280px;margin:auto;padding:44px 40px 30px}.eyebrow{color:var(--gold);font-size:11px;font-weight:700;letter-spacing:2px;text-transform:uppercase}h1,h2,h3,p{margin-top:0}h1{font-family:'Libre Caslon Display',Georgia,serif;font-size:64px;font-weight:400;line-height:1.04;margin-bottom:15px}h2{font-family:'Libre Caslon Display',Georgia,serif;font-size:38px;font-weight:400}.intro{display:flex;justify-content:space-between;align-items:center;margin-bottom:34px}.intro p{color:var(--muted);line-height:1.7;max-width:600px;font-size:14px;margin-bottom:0}.daily{border-left:1px solid var(--line);padding-left:30px;min-width:185px}.daily strong{font-family:Georgia,serif;font-weight:400;font-size:32px;display:block}.daily small{color:var(--muted)}.toolbar{display:flex;align-items:center;gap:10px;margin:24px 0}.chip{border:1px solid var(--line);background:transparent;border-radius:30px;padding:9px 17px;color:var(--muted);font-size:12px}.chip.selected{background:var(--ink);color:white;border-color:var(--ink)}.toolbar select{margin-left:auto;border:0;background:transparent;color:var(--ink);padding:10px;font-size:12px}.exercise{display:grid;grid-template-columns:1.05fr 1fr;border:1px solid var(--line);border-radius:6px;overflow:hidden;background:#fdfcf8}.visual{background:#eae9df;min-height:440px;position:relative;display:flex;align-items:center;justify-content:center;padding:40px}.visual:before{content:'';position:absolute;width:300px;height:300px;border:1px solid #c8c7b6;border-radius:50%;pointer-events:none}.coin{position:relative;width:95%;height:300px;object-fit:contain;mix-blend-mode:multiply;cursor:zoom-in;transition:transform .25s}.coin:hover{transform:scale(1.04)}.visual .eyebrow{position:absolute;left:25px;top:22px;color:#687165}.photo-label{font-size:11px;color:#747c70;position:absolute;bottom:20px}.question{padding:35px 38px}.qhead{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:var(--muted);margin-bottom:24px}.question h2{font-size:33px;line-height:1.14;margin-bottom:10px}.question>p{font-size:13px;color:var(--muted);line-height:1.6}.answers{display:grid;gap:10px;margin-top:24px}.answer{text-align:left;border:1px solid var(--line);background:transparent;border-radius:4px;padding:13px 14px;font-size:13px;color:var(--ink);display:flex;gap:12px;align-items:center}.answer span{color:#92988b;font-size:11px}.answer:hover:enabled{border-color:var(--gold);background:#f7f3e8}.answer.correct{background:#e4eee6;border-color:#5b846d}.answer.wrong{background:#f4e6df;border-color:#b77e68}.answer:disabled{cursor:default}.feedback{margin-top:20px;font-size:13px;line-height:1.65;background:#f0f3ea;padding:17px;border-left:3px solid var(--gold)}.feedback p{margin:5px 0 10px}.feedback a{color:var(--ink)}.actions{display:flex;align-items:center;justify-content:space-between;margin-top:20px}.primary{background:var(--ink);color:white;padding:12px 20px;border:0;border-radius:4px;font-size:12px}.textbutton{background:none;border:0;color:var(--muted);font-size:12px;padding:10px}.hint{font-size:12px;line-height:1.6;color:var(--gold);padding-top:10px}.bottom{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin-top:32px}.tip{display:flex;gap:15px}.tip .icon{font-size:24px;color:var(--gold)}.tip strong{font-size:13px}.tip p{font-size:12px;line-height:1.6;color:var(--muted);margin:6px 0}.bar{height:4px;background:#e2e4d9;border-radius:10px;margin-bottom:22px;overflow:hidden}.bar i{display:block;height:100%;background:var(--gold)}footer{display:flex;justify-content:space-between;align-items:center;gap:15px;border-top:1px solid var(--line);padding:18px 5%;font-size:10px;color:var(--muted);letter-spacing:.5px}footer button{font-size:11px}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.card{background:#fdfcf8;border:1px solid var(--line);border-radius:5px;padding:23px}.card img{width:100%;height:185px;object-fit:contain;mix-blend-mode:multiply}.card h3{font-family:Georgia,serif;font-weight:400;font-size:22px;margin:20px 0 12px}.card p{font-size:13px;line-height:1.6;color:var(--muted)}.card a{color:var(--ink);font-size:12px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:30px 0}.stat{border:1px solid var(--line);padding:25px}.stat strong{display:block;font-family:Georgia,serif;font-size:42px;font-weight:400}.stat p{font-size:13px;color:var(--muted);margin:10px 0 0}dialog{border:1px solid var(--line);border-radius:8px;background:var(--paper);color:var(--ink);max-width:850px;width:90%;max-height:85vh;padding:36px}dialog::backdrop{background:#15312ed9}#close{float:right;border:0;background:transparent;font-size:26px;color:var(--ink)}dialog img{width:100%;max-height:65vh;object-fit:contain}dialog p{font-size:13px;line-height:1.6}dialog a{color:var(--ink)}.notice{font-size:12px;line-height:1.6;color:var(--muted);margin:25px 0}.empty{padding:40px;border:1px dashed var(--line)}@media(max-width:850px){header{flex-wrap:wrap;gap:12px}header>span{display:none}nav{gap:20px}.intro{display:block}.daily{display:none}main{padding:30px 20px}h1{font-size:48px}.exercise{grid-template-columns:1fr}.visual{min-height:320px}.coin{height:240px}.visual:before{width:240px;height:240px}.question{padding:25px}.bottom{grid-template-columns:1fr;gap:15px}.cards{grid-template-columns:repeat(2,1fr)}.toolbar{flex-wrap:wrap}.toolbar select{margin-left:0}.stats{gap:8px}.stat{padding:15px}.stat strong{font-size:32px}footer{flex-wrap:wrap}}@media(max-width:500px){.cards{grid-template-columns:1fr}.brand{font-size:22px}.brand small{display:none}nav button{font-size:12px}.chip{padding:8px 11px}.question h2{font-size:30px}}