:root{
  --maroon:#7a1f2b; --maroon-d:#5c1620; --gold:#c9a227; --gold-l:#f3e6b8;
  --ink:#1f2328; --muted:#5b6470; --line:#e3e6ea; --bg:#fbfaf7; --card:#ffffff;
  --ok:#2e7d32; --warn:#b26a00; --info:#1d5fa6;
  --radius:12px; --maxw:1080px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Source Sans 3","Segoe UI",system-ui,-apple-system,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.55;font-size:17px}
a{color:var(--maroon);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.2;margin:0 0 .5rem;font-family:"Merriweather",Georgia,serif;font-weight:700}
h1{font-size:2.1rem} h2{font-size:1.5rem;margin-top:2rem} h3{font-size:1.15rem;margin-top:1.25rem}
p{margin:.5rem 0 1rem}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
header.site{background:var(--maroon);color:#fff;border-bottom:4px solid var(--gold)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px;flex-wrap:wrap;padding-top:8px;padding-bottom:8px}
.brand{display:flex;align-items:baseline;gap:10px;color:#fff;font-family:"Merriweather",Georgia,serif;font-weight:700;font-size:1.25rem}
.brand small{font-family:"Source Sans 3",sans-serif;font-weight:400;opacity:.85;font-size:.85rem}
nav.main{display:flex;gap:4px;flex-wrap:wrap}
nav.main a{color:#fff;padding:8px 12px;border-radius:8px;font-weight:600;font-size:.95rem}
nav.main a:hover,nav.main a.active{background:rgba(255,255,255,.15);text-decoration:none}
nav.main a.active{box-shadow:inset 0 -3px 0 var(--gold)}
.sub{background:#fff;border-bottom:1px solid var(--line)}
.sub .wrap{display:flex;gap:4px;flex-wrap:wrap;padding-top:6px;padding-bottom:6px}
.sub a{padding:6px 10px;border-radius:6px;font-size:.92rem;color:var(--maroon-d)}
.sub a.active{background:var(--gold-l);font-weight:600}
main{padding:28px 0 56px}
.hero{background:linear-gradient(135deg,#fff 0%,var(--gold-l) 100%);border:1px solid var(--line);border-radius:var(--radius);padding:28px;margin-bottom:28px}
.hero p.lead{font-size:1.15rem;color:var(--muted);max-width:60ch}
.grid{display:grid;gap:18px}
.grid.two{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.grid.three{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 1px 2px rgba(0,0,0,.03)}
.card h3{margin-top:0}
.card.accent{border-top:4px solid var(--maroon)}
.card.gold{border-top:4px solid var(--gold)}
.pill{display:inline-block;padding:2px 10px;border-radius:999px;font-size:.8rem;font-weight:600;background:var(--gold-l);color:var(--maroon-d);margin-right:6px;white-space:nowrap}
.pill.ok{background:#e3f2e5;color:var(--ok)} .pill.warn{background:#fff2dc;color:var(--warn)} .pill.info{background:#e3edf9;color:var(--info)} .pill.muted{background:#eef0f2;color:var(--muted)}
.btn{display:inline-block;background:var(--maroon);color:#fff;padding:10px 18px;border-radius:8px;font-weight:600;border:0;cursor:pointer}
.btn:hover{background:var(--maroon-d);text-decoration:none}
.btn.secondary{background:#fff;color:var(--maroon);border:2px solid var(--maroon)}
.btn.secondary:hover{background:var(--gold-l)}
table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;font-size:.95rem}
th,td{padding:10px 12px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
th{background:#f4f1ea;font-weight:700}
tr:last-child td{border-bottom:0}
.timeline{list-style:none;padding:0;margin:0;position:relative}
.timeline:before{content:"";position:absolute;left:14px;top:6px;bottom:6px;width:3px;background:var(--line)}
.timeline li{position:relative;padding:0 0 18px 44px}
.timeline li:before{content:"";position:absolute;left:6px;top:6px;width:18px;height:18px;border-radius:50%;background:#fff;border:4px solid var(--muted)}
.timeline li.done:before{border-color:var(--ok);background:var(--ok)}
.timeline li.now:before{border-color:var(--maroon);background:var(--maroon);box-shadow:0 0 0 5px rgba(122,31,43,.15)}
.timeline li.next:before{border-color:var(--gold)}
.timeline .date{font-weight:700;color:var(--maroon-d)}
.timeline .pts{color:var(--muted);font-size:.9rem}
details{background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 16px;margin:10px 0}
summary{cursor:pointer;font-weight:700;color:var(--maroon-d)}
details[open] summary{margin-bottom:8px}
.callout{border-left:4px solid var(--gold);background:#fffaf0;padding:12px 16px;border-radius:0 10px 10px 0;margin:14px 0}
.callout.maroon{border-left-color:var(--maroon);background:#fbf3f4}
.muted{color:var(--muted)}
.small{font-size:.9rem}
.kicker{text-transform:uppercase;letter-spacing:.08em;font-size:.78rem;color:var(--maroon);font-weight:700;margin-bottom:4px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:28px}
@media(max-width:800px){.split{grid-template-columns:1fr}}
footer.site{background:#2b2b2b;color:#ddd;padding:28px 0;font-size:.92rem}
footer.site a{color:#fff}
footer.site .links{display:flex;flex-wrap:wrap;gap:8px 18px;margin-bottom:12px}
footer.site .links a{border-bottom:1px dotted #777}
.toolbox{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.toolbox label{display:block;font-weight:600;margin:8px 0 4px}
.toolbox input,.toolbox select,.toolbox textarea{width:100%;padding:8px 10px;border:1px solid #c8ccd2;border-radius:8px;font:inherit}
.toolbox .row{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px}
.result{margin-top:12px;padding:12px;background:var(--gold-l);border-radius:8px;font-weight:600}
.sortgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:10px}
.sortgrid .box{min-height:90px;border:2px dashed #c8ccd2;border-radius:10px;padding:8px}
.sortgrid .box h4{margin:0 0 6px;font-size:.95rem}
.chip{display:inline-block;padding:4px 10px;margin:3px;border-radius:999px;background:#fff;border:1px solid #c8ccd2;cursor:pointer;font-size:.9rem;user-select:none}
.chip.right{border-color:var(--ok);background:#e3f2e5}
.chip.wrong{border-color:#c62828;background:#fdecea}
.quiz{margin:10px 0}
.quiz button{margin:4px 6px 4px 0}
.quiz .ans{display:none;margin-top:8px;padding:10px;background:#f4f1ea;border-radius:8px}
.quiz.show .ans{display:block}
.stat{font-family:"Merriweather",Georgia,serif;font-size:2rem;color:var(--maroon);font-weight:700;line-height:1}
.stat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin:14px 0}
.badge{display:inline-block;background:var(--maroon);color:#fff;border-radius:6px;padding:2px 8px;font-size:.8rem;font-weight:700;margin-right:6px}
.chapter-list{list-style:none;padding:0;margin:0;display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.chapter-list li{background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 14px}
.chapter-list .n{font-family:"Merriweather",serif;color:var(--maroon);font-weight:700}
.chapter-list .links a{margin-right:10px;font-size:.9rem}
ul.clean{padding-left:1.2rem}
.ref{font-size:.88rem;color:var(--muted);padding-left:2em;text-indent:-2em;margin:.3rem 0}