/* Shared learning layer: follows the existing warm paper and teal reference desk. */
.glossary-index{display:flex;flex-wrap:wrap;gap:.6rem;margin:1.5rem 0 2rem}.glossary-index a{padding:.4rem .7rem;border:1px solid #708b80;border-radius:8px;color:#164d50;background:#eef1e5}.learning-guide .glossary-entry,.learning-guide .learning-chapter{padding:1.5rem 0 2rem;border-bottom:1px solid #a6b4a3;scroll-margin-top:1rem}.learning-guide .plain-definition{font-size:1.3rem;line-height:1.4;color:#164d50;max-width:55ch}.learning-guide figure{margin:1.5rem 0}.learning-guide figure img{display:block;width:100%;height:auto;max-width:900px;border-radius:12px}.learning-guide figcaption{margin-top:.8rem;max-width:70ch;color:#374e4b;font-size:.9rem}.learning-guide h3{margin-top:1.4rem}.radio-console button.term-help{display:inline;padding:0;border:0;border-bottom:1px dashed currentColor;border-radius:0;background:none;box-shadow:none;color:inherit;font:inherit;line-height:inherit;text-shadow:none;cursor:help;min-height:0;min-width:0}.term-help:focus-visible{outline:3px solid #986417;outline-offset:3px}#term-explainer{position:fixed;inset:auto;margin:0;box-sizing:border-box;width:min(370px,calc(100vw - 24px));max-height:70vh;overflow:auto;background:#f7f5ee;color:#142d3d;padding:1rem 1.2rem;border:1px solid #50716a;border-radius:12px;box-shadow:0 12px 30px #0005;z-index:10000;font:18px/1.5 Atkinson,'Segoe UI',sans-serif}#term-explainer h2{font:700 1.25rem/1.3 Atkinson,'Segoe UI',sans-serif;margin:0 0 .6rem;color:#164d50}#term-explainer p{margin:.6rem 0}#term-explainer a{color:#164d50}#term-explainer button{font:inherit;color:#142d3d;background:#eceadf;border:1px solid #708b80;border-radius:6px;padding:.35rem .7rem;margin-top:.7rem}#term-explainer :focus-visible{outline:3px solid #986417;outline-offset:3px}@media print{#term-explainer{display:none!important}.term-help{border:0!important}.glossary-index{display:none}.learning-chapter figure{break-inside:avoid}}
/* Deliberate reading rhythm for all learning chapters and glossary entries. */
.learning-guide .learning-chapter>h3,.learning-guide .lesson-explanation>h3{margin:2rem 0 .8rem;line-height:1.3}
.learning-guide .learning-chapter>p,.learning-guide .lesson-explanation>p,.learning-guide .glossary-entry>p{margin:0 0 1.1rem;line-height:1.65;max-width:70ch}
.learning-guide figcaption{margin-top:1.2rem;line-height:1.65}.learning-guide figcaption p{margin:0 0 .85rem}
.learning-guide .lesson-takeaway{margin:1.6rem 0 1.1rem!important;padding:1.1rem 1.25rem;background:#e8eee2;border-radius:10px}
.learning-guide .lesson-takeaway>strong{display:block;margin-bottom:.5rem;color:#164d50}
.learning-guide .lesson-next{display:inline-block;margin:.25rem 0 1rem;text-underline-offset:.2em}
.learning-guide .measurement-guide{margin:1rem 0 1.6rem;max-width:70ch}
.learning-guide .measurement-guide dt{font-weight:700;color:#164d50;margin:1.4rem 0 .45rem}
.learning-guide .measurement-guide dd{margin:0;line-height:1.65}
.learning-guide .source-note{margin-top:1.75rem!important;padding-top:1rem}
#term-explainer{width:min(320px,calc(100vw - 24px));font-size:16px;padding:.9rem 1rem}
.radio-console button.term-help{cursor:pointer}
/* Topic navigation uses short destination names, not the lesson analogies. */
.learning-guide .lesson-index{margin:1.5rem 0 2rem;padding:1rem 0 1.25rem;border-block:1px solid #a6b4a3}
.learning-guide .lesson-index h2{margin:0 0 .6rem;padding:0;background:none;font:700 1rem/1.4 Atkinson,'Segoe UI',sans-serif;color:#374e4b}
.learning-guide .lesson-index ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 1.75rem;list-style:none;padding:0;margin:0}
.learning-guide .lesson-index li{margin:0;min-width:0}
.learning-guide .lesson-index a{display:flex;justify-content:space-between;align-items:center;gap:.6rem;padding:.65rem 0;color:#164d50;font-size:1rem;font-weight:700;text-decoration:none;border-bottom:1px solid #c3ccbb;min-height:44px;box-sizing:border-box}
.learning-guide .lesson-index a svg{flex:none}
.learning-guide .lesson-index a:hover span{text-decoration:underline;text-underline-offset:.2em}
.learning-guide .lesson-index a:focus-visible{outline:3px solid #986417;outline-offset:3px;border-radius:3px}
@media(max-width:440px){.learning-guide .lesson-index ul{grid-template-columns:1fr}}
@media print{.learning-guide .lesson-index{display:none}}
/* Keep chapter boundaries compact without crowding the instructional text. */
.reference-console #main.learning-guide>.learning-chapter{margin-top:1.1rem!important;padding-top:1rem;padding-bottom:.6rem;border-bottom:0}
.reference-console #main.learning-guide>.learning-chapter>h2{margin-top:0}
.reference-console #main.learning-guide .learning-chapter>p.source-note{margin:.65rem 0 0!important;padding-top:.6rem}
.reference-console #main.learning-guide .learning-chapter>.lesson-next{margin:0 0 .25rem}
.reference-console #main.learning-guide .learning-chapter>.lesson-takeaway{margin:1.1rem 0 .8rem!important;padding:.8rem 1rem}
.learning-guide .lesson-resources{margin:.9rem 0 .5rem;padding:.8rem 1rem;background:#e3eadb;border-radius:8px}
.learning-guide .lesson-resources h3{margin:0 0 .5rem;font-size:1rem;line-height:1.4;color:#164d50}
.learning-guide .lesson-resources dl{margin:0}
.learning-guide .lesson-resources dl>div{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);gap:.8rem;padding:.6rem 0;border-top:1px solid #b5c2af;font-size:.9rem;line-height:1.5}
.learning-guide .lesson-resources dt,.learning-guide .lesson-resources dd{margin:0}
.learning-guide .lesson-resources dt{font-weight:700}
@media(max-width:600px){.learning-guide .lesson-resources dl>div{grid-template-columns:1fr;gap:.25rem}}
/* A titled, alphabetical index replaces unexplained floating term chips. */
.learning-guide .definition-index{margin:1.25rem 0 1.5rem;padding:1rem 0;border-block:1px solid #a6b4a3}
.learning-guide .definition-index h2{background:none;padding:0;margin:0 0 .5rem;color:#164d50;font:700 1.3rem/1.35 Atkinson,'Segoe UI',sans-serif}
.learning-guide .definition-index>p{font-size:.9rem;margin:0 0 .8rem;max-width:65ch;color:#374e4b;line-height:1.5}
.learning-guide .definition-index ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));list-style:none;gap:0 1.5rem;margin:0;padding:0}
.learning-guide .definition-index li{margin:0;min-width:0}
.learning-guide .definition-index a{display:flex;align-items:center;justify-content:space-between;gap:.6rem;min-height:44px;padding:.45rem .65rem;border-bottom:1px solid #b5c2af;color:#164d50;font-weight:700;text-decoration:none}
.learning-guide .definition-index li:nth-child(4n+1),.learning-guide .definition-index li:nth-child(4n+2){background:#e3eadb}
.learning-guide .definition-index a:hover span{text-decoration:underline;text-underline-offset:.2em}
.learning-guide .definition-index a:focus-visible{outline:3px solid #986417;outline-offset:-3px}
.learning-guide .definition-index svg{flex:none}
.learning-guide .glossary-entry:target{outline:2px solid #7b9181;outline-offset:8px}
@media(max-width:440px){.learning-guide .definition-index ul{grid-template-columns:1fr}.learning-guide .definition-index li:nth-child(n){background:none}.learning-guide .definition-index li:nth-child(odd){background:#e3eadb}}
@media print{.learning-guide .definition-index{display:none}}