/* Scoped stylesheet for opt-in advanced study pages. */
.ax-panel{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:24px;margin:16px 0;box-shadow:var(--shadow)}
.ax-panel h2{font-size:1.25rem;margin:0 0 12px}.ax-panel p{color:var(--muted);font-size:.92rem}
.ax-cardgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.ax-cardgrid .ax-panel{margin:0}
.ax-controls{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:18px 0 22px}
.ax-field{display:flex;flex-direction:column;gap:9px;font-size:.88rem;font-weight:600}.ax-field>span{display:flex;justify-content:space-between;gap:10px}
.ax-field output{font-variant-numeric:tabular-nums;color:#117c70;direction:ltr}.ax-field input{width:100%;accent-color:#148b79}
.ax-field select{padding:8px;border:1px solid var(--line);border-radius:8px;background:white;max-width:100%}
.ax-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.ax-stat{background:#f3f8f8;border:1px solid #e2eaea;border-radius:11px;padding:12px;min-width:0}
.ax-stat span{color:#627889;font-size:.78rem;display:block;min-height:2.5em}.ax-stat strong{font-size:1.2rem;display:block;overflow-wrap:anywhere;color:#146a60}
.ax-figure{background:#fff;border:1px solid var(--line);border-radius:12px;margin:16px 0;padding:12px;max-width:100%}
.ax-figure svg{width:100%;height:auto;display:block}.ax-figure figcaption{font-size:.76rem;color:#667789;margin:7px 0 0}
.ax-limit{border-inline-start:3px solid #b17a42;padding:11px 15px;background:#fff8ee;color:#79583b!important;border-radius:4px}
.ax-links{display:flex;gap:9px;flex-wrap:wrap}.ax-links a{border:1px solid #afd8ca;border-radius:9px;color:#127c67;padding:6px 10px;font-size:.8rem}
.ax-panel ul{padding-inline-start:22px}.ax-panel li{margin:6px 0;overflow-wrap:anywhere}.ax-panel li a{text-decoration:underline;text-underline-offset:3px}
.ax-back{display:block;color:#138473;font-size:.85rem;font-weight:650;margin-bottom:12px}
.ax-helper{margin-bottom:10px}
@media(max-width:720px){.ax-cardgrid,.ax-controls{grid-template-columns:1fr}.ax-stats{grid-template-columns:repeat(2,minmax(0,1fr))}.ax-panel{padding:17px}}

/* Learning Experience Contract v1: switchable explanations, one scientific engine. */
.ax-foundation h3{font-size:1rem;margin:18px 0 8px}.ax-foundation ul,.ax-worked ol{padding-inline-start:24px}
.ax-glossary dl{display:grid;grid-template-columns:minmax(130px,1fr) minmax(0,2fr);gap:9px 12px;margin:0}.ax-glossary dt{font-weight:700}.ax-glossary dd{margin:0;color:var(--muted)}
.ax-paths{display:flex;flex-wrap:wrap;gap:9px;margin:12px 0}.ax-path-btn{border:1px solid #89bbad;border-radius:9px;background:var(--surface);padding:10px 14px;color:#096b5a;cursor:pointer;font:inherit}
.ax-path-btn[aria-pressed="true"]{background:#0c675b;color:white;border-color:#0c675b}.ax-path-btn:focus-visible{outline:3px solid #d49c35;outline-offset:3px}
.ax-worked{background:#eff7f5;padding:15px;border-radius:12px;border:1px solid #c9e6db}.ax-worked p{color:#314a45}.ax-note{font-size:.8rem!important;color:var(--muted)}
.ax-open-foundation{margin:14px 0}.ax-open-foundation summary{cursor:pointer;font-weight:650}
.ax-timeline{padding-inline-start:24px}.ax-timeline li{margin:15px 0}.ax-timeline li p{margin:7px 0}.ax-timeline a{color:#087466;text-decoration:underline}
@media(max-width:650px){.ax-glossary dl{display:block}.ax-glossary dt{margin-top:12px}}