:root{--ink:#173e3c;--muted:#536a65;--bg:#f5f3ec;--paper:#fffef9;--line:#d8dfd5;--green:#176652;--light:#e8efe3;--gold:#f0c86b;--radius:22px}
*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Segoe UI",sans-serif}a{color:var(--green);text-underline-offset:4px}button{font:inherit;cursor:pointer}a,button{touch-action:manipulation}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #ac6513;outline-offset:4px}main:focus{outline:none}h1,h2,h3,p{margin:0}h1{font:clamp(36px,4.8vw,60px)/1.08 Georgia,serif;letter-spacing:-.035em}h2{font-size:clamp(24px,2.7vw,30px);line-height:1.2;letter-spacing:-.025em}h3{font-size:19px;line-height:1.35}.skip{position:absolute;top:-100px;left:12px;z-index:10;background:white;padding:12px}.skip:focus{top:10px}.top{max-width:1340px;margin:auto;padding:25px 32px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{text-decoration:none;font-weight:850;font-size:21px;color:var(--ink);white-space:nowrap}.brand span{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--ink);color:var(--gold);margin-right:6px}.top-links{display:flex;gap:22px;font-size:13px;flex-wrap:wrap;justify-content:flex-end}.shell{max-width:1340px;margin:auto;padding:0 32px 36px;display:grid;grid-template-columns:210px minmax(0,1fr);gap:35px}.sidebar{padding-top:22px}.eyebrow{display:block;font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.15em;margin-bottom:14px}.sidebar-title{font-size:24px;font-weight:800;margin-bottom:23px}.sidebar nav{display:grid;gap:6px}.sidebar nav a{display:flex;justify-content:space-between;padding:12px 14px;border-radius:10px;color:var(--muted);text-decoration:none;font-size:14px;font-weight:650}.sidebar nav a[aria-current]{background:var(--ink);color:var(--paper)}.sidebar-note{border-top:1px solid var(--line);margin:30px 14px 0;padding-top:20px;font-size:12px;color:var(--muted)}.sidebar-note p{margin-top:7px}.workspace{min-width:0}.draft{font-size:12px;color:var(--muted);margin:10px 0 22px;display:flex;gap:8px;align-items:start}.dot{width:7px;height:7px;border-radius:50%;background:#b88732;margin-top:7px;flex-shrink:0}.notice{background:#fff0ca;border:1px solid #d7bd7e;border-radius:12px;padding:13px 16px;margin-bottom:20px;font-size:14px}.hero{border-radius:var(--radius);background:var(--ink);color:var(--paper);padding:34px;display:grid;grid-template-columns:minmax(0,1.45fr) minmax(180px,.8fr);gap:24px;align-items:center}.hero .eyebrow{color:var(--gold)}.hero p{margin-top:18px;color:#d2e0d7;max-width:580px}.hero-art{padding:20px;border:1px solid #557468;border-radius:17px;display:grid;gap:18px}.art-line{display:flex;align-items:center;gap:12px;font-size:13px;color:#d2e0d7}.art-num{font:26px Georgia,serif;color:var(--gold);width:30px}.art-line+.art-line{padding-top:14px;border-top:1px solid #45675a}.hero-art 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var(--green);border-radius:10px;font-weight:750;font-size:14px;background:var(--green);color:white;text-decoration:none;text-align:center;max-width:100%}.btn.secondary{background:transparent;color:var(--ink);border-color:var(--line)}.btn.gold{background:var(--gold);border-color:var(--gold);color:var(--ink)}.muted{color:var(--muted)}.small{font-size:13px}.tag{display:inline-block;font-size:11px;line-height:1.4;font-weight:750;border-radius:7px;padding:5px 8px;background:var(--light);color:var(--green)}.tag.planned{background:#eeece6;color:#6c6c60}.tag.gold{background:#fff0c6;color:#79571a}.time{font-size:12px;color:var(--muted);display:inline-block;margin-left:10px}.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.card,.panel{border:1px solid var(--line);background:var(--paper);border-radius:var(--radius);padding:23px}.card{display:flex;flex-direction:column;gap:12px;min-width:0}.card .actions{margin-top:auto;padding-top:6px}.card p{font-size:14px;color:var(--muted)}.card-top{display:flex;justify-content:space-between;gap:14px;align-items:center}.number{font:31px Georgia,serif;color:var(--green)}.positions{font-size:12px;color:var(--muted)}.page-intro{margin-top:16px;color:var(--muted);max-width:680px}.module-heading{display:flex;gap:20px;align-items:center;margin-top:20px}.module-heading .number{font-size:58px}.lesson-list{display:grid;gap:12px;margin-top:22px}.lesson{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:22px;display:grid;grid-template-columns:36px minmax(0,1fr) auto;gap:15px;align-items:start}.lesson-order{font:25px Georgia,serif;color:var(--muted)}.lesson p{font-size:14px;color:var(--muted);margin-top:7px}.lesson-action{text-align:right}.lesson .btn{margin-top:11px}.prereqs{display:flex;flex-wrap:wrap;gap:6px;margin-top:11px}.prereqs a{font-size:12px;padding:4px 8px;border-radius:6px;background:var(--light);text-decoration:none}.two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:22px}.panel p{margin-top:10px}.panel ol{padding-left:22px}.panel li+li{margin-top:8px}.resource:target,.resource.selected{border:2px solid var(--green)}.back{font-size:13px}.big-stat{font:44px Georgia,serif;margin:8px 0}.stat-label{font-size:13px;color:var(--muted)}.progress-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:22px}.stat{padding:19px;background:var(--light);border-radius:15px}.status-list{margin-top:20px}.status-row{display:flex;justify-content:space-between;gap:20px;padding:15px 0;border-top:1px solid var(--line)}.status-row span{font-size:13px;color:var(--muted);text-align:right}.helper{padding:20px 23px;border:1px dashed #a9bbae;border-radius:16px;margin-top:22px;font-size:14px}.helper p{margin-top:7px}.chip-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}.chip-list a{padding:8px 12px;background:var(--paper);border:1px solid var(--line);border-radius:9px;text-decoration:none;font-size:13px}footer{display:flex;justify-content:space-between;gap:15px;margin-top:34px;padding-top:20px;border-top:1px solid var(--line);color:var(--muted);font-size:11px}.noscript{padding:25px}.empty{padding:28px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);margin-top:22px}.empty p{margin-top:12px}
@media(max-width:1000px){.shell{grid-template-columns:180px minmax(0,1fr);gap:24px}.hero{grid-template-columns:1fr}.hero-art{display:none}.lesson{grid-template-columns:30px minmax(0,1fr)}.lesson-action{grid-column:2;text-align:left}}
@media(max-width:750px){.top{padding:18px 20px}.shell{display:block;padding:0 20px 28px}.sidebar{padding:0}.sidebar>.eyebrow,.sidebar-title,.sidebar-note{display:none}.sidebar nav{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:18px}.sidebar nav a{padding:9px 11px;font-size:12px}.sidebar nav a span{display:none}.two{grid-template-columns:1fr}}
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@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

.lesson.selected{border:2px solid var(--green)}.big-stat small{font:18px system-ui,sans-serif;color:var(--muted)}

.backup-label{display:block;font-weight:700;margin:18px 0 8px}.backup-root input[type=file]{display:block;width:100%;font:inherit;font-size:14px}.backup-confirm{display:flex;gap:10px;align-items:start;margin-top:22px}.backup-confirm input{margin-top:6px;width:18px;height:18px;flex-shrink:0;accent-color:var(--green)}.backup-preview,.backup-status{margin-top:22px}.backup-preview h2:focus{outline:2px solid var(--green);outline-offset:6px}.backup-root button:disabled{opacity:.55;cursor:default}.backup-status:focus{outline:2px solid var(--green)}

.module-choices{margin:0 0 22px}.module-choices a[aria-current]{background:var(--ink);color:var(--paper);border-color:var(--ink)}