:root{--bg:#f8f3ec;--paper:#fffaf4;--ink:#443329;--muted:#7f6c5e;--line:#e7d9cc;--soft:#eee3d7;--brown:#5e4436}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.5 system-ui,-apple-system,'Segoe UI',sans-serif}button,input,textarea,select{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}.site{display:grid;grid-template-columns:224px minmax(0,1fr);min-height:100vh}.sidebar{background:#f0e6db;border-right:1px solid var(--line);padding:26px 15px;position:sticky;top:0;height:100vh}.logo{font:700 21px/1.14 Georgia,serif;padding:12px;color:#503729}.logo small{font:10px system-ui;letter-spacing:2px;display:block;color:var(--muted);margin-top:3px}.navitem{display:block;width:100%;border:0;text-align:left;background:transparent;border-radius:13px;padding:13px 15px;color:#614d41;margin:5px 0}.navitem.active,.navitem:hover{background:#e0cdbb;font-weight:700}.main{padding:26px clamp(16px,4vw,58px);max-width:1510px;width:100%;margin:auto}.top{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:25px}.mini{font-size:12px;color:var(--muted)}h1,h2,h3{font-family:Georgia,serif;line-height:1.15}h1{font-size:clamp(34px,4vw,55px);margin:7px 0 12px}h2{font-size:27px;margin:26px 0 13px}h3{font-size:21px;margin:6px 0 10px}.hero{border-radius:24px;background:linear-gradient(108deg,#443127,#685043);color:#fff7eb;padding:clamp(25px,4vw,55px);position:relative;overflow:hidden}.hero:after{content:'◌';position:absolute;right:35px;top:-95px;font-size:400px;opacity:.08}.hero p{max-width:680px;color:#e9d8c9}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:700;text-transform:uppercase;color:#ddc1a4}.btn{border:0;background:#624738;color:white;border-radius:12px;padding:11px 17px;font-weight:700;display:inline-flex;gap:8px;align-items:center;justify-content:center;min-height:43px}.btn.light{background:#f7eade;color:#513a2b}.btn.outline{background:transparent;color:#5e4436;border:1px solid #cbb7a4}.btn:disabled{opacity:.5;cursor:not-allowed}.buttonrow{display:flex;gap:9px;flex-wrap:wrap}.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:13px}.cards3{grid-template-columns:repeat(3,minmax(0,1fr))}.card{border:1px solid var(--line);background:var(--paper);border-radius:17px;padding:19px;min-width:0;box-shadow:0 5px 18px #553e2908}.card.paid{background:#eae0d6}.card p{font-size:13px;color:var(--muted);margin:8px 0}.glyph{display:grid;place-items:center;width:47px;height:47px;background:#e9d9c9;color:#674937;border-radius:13px;font-size:25px}.meta{display:flex;gap:9px;flex-wrap:wrap;font-size:12px;color:#87715f}.chip{background:#f0e7de;border-radius:30px;padding:4px 9px}.tag{font-size:11px;letter-spacing:.4px;color:#7d624b;font-weight:700}.row{display:flex;gap:12px;align-items:center;justify-content:space-between}.stack{display:grid;gap:12px}.section{display:none}.section.active{display:block}.surface{background:#eee3d7;border-radius:18px;padding:22px}.field{display:grid;gap:6px;margin:12px 0}.field label{font-weight:650;font-size:13px}.field input,.field select,.field textarea{border:1px solid #d3bda9;padding:11px;border-radius:10px;background:#fffaf5;max-width:100%;width:100%}.field textarea{min-height:88px}.tabs{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}.tabs button{background:#e9dccf;border:1px solid #dccab7;border-radius:11px;padding:9px 13px;color:var(--ink)}.tabs button.active{background:#5e4436;color:white}.metric{background:white;border-radius:13px;padding:16px}.metric strong{font-size:26px;display:block}.metric span{font-size:12px;color:var(--muted)}.step{display:flex;align-items:center;gap:12px;background:white;border-radius:12px;padding:12px;margin:8px 0}.step strong{flex:1}.notice{background:#f2e5d8;padding:15px;border-radius:12px;font-size:13px;color:#735743}.footer{border-top:1px solid var(--line);margin-top:40px;padding:20px 0;color:#887363;font-size:12px}.selectlink{display:block;margin-top:10px}.teaser{margin-bottom:14px}.toolframe{border-radius:16px;width:100%;min-height:72vh;border:1px solid #ddc9b6;background:white}.hide{display:none!important}@media(max-width:1150px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.cards3{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:760px){.site{display:block}.sidebar{position:static;height:auto;padding:9px 12px}.sidebar nav{display:flex;overflow-x:auto;gap:3px}.sidebar .logo{font-size:19px;padding:8px}.sidebar .logo small{display:none}.navitem{white-space:nowrap;padding:9px 11px;margin:0}.main{padding:15px}.grid,.cards3{grid-template-columns:1fr 1fr}.card{padding:13px}.hero{padding:26px}.row{flex-wrap:wrap}}@media(max-width:480px){.grid,.cards3{grid-template-columns:1fr 1fr}.card h3{font-size:18px}}

#exerciseNav{margin-top:14px;padding-top:12px;border-top:1px solid var(--line)}.exercise-link{font-size:13px;padding:9px 15px}.sidebar{overflow-y:auto}
.exercise-open .main{padding:0;max-width:none;margin:0}.exercise-open .main>.top,.exercise-open .main>.footer{display:none}
#exercise.active{display:flex;flex-direction:column;height:100dvh;min-height:400px;overflow:hidden}.exercise-toolbar{display:flex;gap:18px;align-items:center;padding:10px 18px;border-bottom:1px solid var(--line);flex-shrink:0}#toolframe{display:block;width:100%;flex:1;min-height:0;border:0;background:var(--bg)}
@media(max-width:760px){.exercise-open .sidebar{height:145px;box-sizing:border-box;overflow:hidden}.exercise-open #exercise.active{height:calc(100dvh - 145px);min-height:300px}#exerciseNav{display:flex;overflow:auto;margin:4px 0 0;padding:4px 0 0;gap:4px}.exercise-link{width:auto;flex-shrink:0}.exercise-toolbar{padding:7px 12px;gap:12px}}