.concept-entrance{margin:1.25rem 0}.concept-level{padding:1rem 0;border-bottom:1px solid var(--line)}.concept-level>h3,.vocab-word-practice>h3{font:normal 1.35rem Georgia,serif;margin:.3rem 0 .7rem}.concept-level>p{max-width:72ch}.concept-check{margin:1rem 0;padding:1rem;background:#f4f7fa;border-left:3px solid #839db5}.concept-check fieldset{border:0;padding:0;margin:0}.concept-check legend{font-size:.9375rem;font-weight:700;line-height:1.5;margin-bottom:.75rem}.concept-check label{display:flex;align-items:baseline;gap:.5rem;margin:.55rem 0;font-size:1rem;line-height:1.5}.concept-check input{flex-shrink:0}.concept-check button,.word-cloze button{background:white;border:1px solid #9badbe;color:#214c73;padding:.55rem .8rem;border-radius:3px;font-weight:700;margin-top:.65rem}.check-feedback{font-size:.9375rem;line-height:1.6;margin:.75rem 0 0}.check-feedback:empty{display:none}.check-feedback[data-result=correct]{color:#225238}.check-feedback[data-result=retry]{color:#765017}.concept-entrance>summary,.concept-answer>summary,.evidence-frame>summary{font-weight:700;color:#255b89;cursor:pointer;line-height:1.5;padding:.6rem 0}.concept-answer,.evidence-frame{margin:1rem 0}.idea-card .gloss-row{display:block}.idea-card .margin-gloss{max-width:none}.idea-card .margin-gloss dl{display:grid;gap:.5rem;grid-template-columns:repeat(auto-fit,minmax(10rem,1fr))}.idea-card .margin-definition{margin:0}.idea-card .concept-check{padding:.8rem}.idea-directory-lesson{padding:1.5rem 0 2rem;border-bottom:2px solid var(--line)}.idea-directory-lesson>h2{font-size:2rem}.vocab-word-practice{border-top:1px solid var(--line);margin-top:1.25rem;padding-top:1rem}.cloze-row{display:block;font-size:1rem;line-height:2;margin:.6rem 0}.cloze-row select{font-size:1rem;max-width:100%;padding:.4rem;color:var(--ink);background:#fff;border:1px solid #9caebe}.cloze-row select[aria-invalid=true]{border:2px solid #95661e}.word-bank{font-size:.9375rem}.word-cloze{padding:1rem;border:1px solid var(--line);background:#fafcfd}.evidence-frame p,.frame-direction{font-size:.9375rem;line-height:1.6}.landing-big-questions .big-question{border-top:1px solid #aabfce}.big-question:last-child{border-bottom:1px solid #aabfce}.landing-big-questions .big-question>summary{display:flex;align-items:center;gap:1rem;cursor:pointer;list-style:none;padding:1.3rem 0}.big-question>summary::-webkit-details-marker{display:none}.landing-big-questions .big-question h3{font:normal clamp(1.3rem,2.2vw,1.8rem)/1.35 Georgia,serif;margin:0}.big-question-number{font-size:.875rem;color:#506d83}.expand-sign{margin-left:auto;font-size:2rem;font-weight:400;min-width:1.5rem}.expand-sign:before{content:'+'}.big-question[open] .expand-sign:before{content:'−'}.big-question-body{padding:.5rem 0 1.8rem}.landing-big-questions .big-question-body p{display:block;margin:.7rem 0;max-width:none;font-size:1rem;line-height:1.75}.landing-big-questions .big-question-body p strong{display:inline;min-width:0;font-size:inherit}.landing-big-questions .big-question-body .margin-gloss{font-size:.875rem}.big-question-body mark{background:#fff176;color:#192f43;box-decoration-break:clone;-webkit-box-decoration-break:clone}.key-idea-color-note dt{background:#fff176;display:inline}.related-aims{padding-left:1.5rem;margin:1rem 0}.related-aims li{padding:1rem .25rem;border-top:1px solid var(--line)}.related-aims h4{font:normal 1.15rem/1.5 Georgia,serif;margin:0}.related-aim-note,.related-aim-links{color:#45637c}.related-aims .related-aim-links{font-size:.875rem!important}.landing-paths{margin-top:1.6rem}.matrix-general-example{margin-top:1.5rem;padding-top:1rem;border-top:1px solid var(--line)}.matrix-general-example h3{font-family:Arial,sans-serif;font-size:.9375rem;font-weight:700}.matrix-general-example>p{font:normal 1.2rem/1.65 Georgia,serif}.matrix-general-example strong{background:#f5e6b5}.book-page figure .image-caption{padding:.7rem 0;max-width:48rem;margin:0 auto}.book-page figure .image-caption p{font:normal .9375rem/1.6 Arial,sans-serif}.additional-model-intro{border-top:2px solid #355e84;padding-top:1.5rem;margin-top:2rem}
@media(max-width:700px){.big-question-body .gloss-row,.concept-level .gloss-row{display:block}.big-question-body .margin-gloss,.concept-level .margin-gloss{margin:.8rem 0;padding:.8rem 0;border-top:1px solid var(--line)}.landing-big-questions .big-question>summary{gap:.6rem}.concept-check{padding:.8rem}.cloze-row{line-height:2.5}.cloze-row select{display:inline-block}.idea-directory-lesson>h2{font-size:1.6rem}}

.level-check>summary{font-size:.9375rem;font-weight:700;line-height:1.5;color:#285a84;padding:.65rem 0;cursor:pointer}.level-check{margin:.6rem 0}.level-check[open]>.concept-check{margin-top:.25rem}

/* The course-idea directory gives each idea the same visual weight as a major Aim. */
.key-idea-display{margin:0 0 1.25rem!important}
.key-idea-number{display:block;font:700 clamp(3.2rem,7vw,6.3rem)/.95 Georgia,'Times New Roman',serif;color:var(--brand-red);letter-spacing:-.045em}
.key-idea-statement{display:block;margin-top:.5rem;font:400 clamp(1.6rem,2.3vw,2.15rem)/1.25 Georgia,'Times New Roman',serif;color:var(--brand-red);text-decoration:none;letter-spacing:-.025em}
.key-idea-statement:hover{text-decoration:underline;text-underline-offset:.18em}
.super-aims-note{margin:1.15rem 0 1.8rem;padding:1.1rem 1.25rem;border-left:4px solid var(--brand-red);background:#f7f4f1}
.landing-big-questions .super-aims-note p{max-width:82ch;font-size:1rem;line-height:1.7;margin:.25rem 0 .7rem}
.landing-big-questions .super-aims-note strong{display:inline;min-width:0;margin-bottom:0;color:var(--brand-red);font-size:inherit}
.super-aims-note a{font-weight:700}
@media(max-width:700px){.key-idea-number{font-size:clamp(3rem,15vw,4.8rem)}.key-idea-statement{font-size:clamp(1.8rem,7vw,2.2rem)}.super-aims-note{padding:.9rem 1rem}}