:root{--study-ink:#17231f;--study-muted:#52635d;--study-bg:#f4f8f6;--study-card:#fff;--study-line:#c8d9d2;--study-green:#246a56;--study-deep:#153f35;--study-accent:#c96824;--study-good:#176547;--study-bad:#a23c45}*{box-sizing:border-box}.unit-study-divider{border:0;border-top:2px solid var(--line,#c8d9d2);margin:2.25rem 0}.unit-study-section{margin:2rem 0}.unit-study-section>.section-title{margin-bottom:1rem}.study-tools{display:grid;gap:.85rem}.study-tool{background:var(--paper,#fff);border:1px solid var(--line,#c8d9d2);border-radius:14px;box-shadow:0 7px 22px rgba(18,63,53,.06);overflow:hidden}.study-tool summary{cursor:pointer;font-size:1.05rem;font-weight:800;padding:1rem 1.1rem;list-style-position:inside}.study-tool[open] summary{border-bottom:1px solid var(--line,#c8d9d2)}.study-tool-body{padding:1rem 1.1rem}.study-topic{border-left:4px solid var(--study-green);padding:.1rem 0 .2rem 1rem;margin:0 0 1.25rem}.study-topic:last-child{margin-bottom:0}.study-topic h3{margin:0 0 .5rem}.study-topic h4{margin:.7rem 0 .25rem;font-size:.92rem;text-transform:uppercase;letter-spacing:.04em;color:var(--study-green)}.study-topic ul{margin:.2rem 0 .4rem;padding-left:1.25rem}.study-topic li{margin:.25rem 0}.study-links{display:flex;flex-wrap:wrap;gap:.65rem}.study-links a{display:inline-flex;align-items:center;min-height:44px;text-decoration:none;font-weight:800;border-radius:9px;padding:.65rem .9rem;background:var(--study-green);color:white}.study-links a.secondary{background:transparent;color:var(--study-deep);border:1px solid var(--study-line)}
.flash-meta{display:flex;justify-content:space-between;gap:1rem;color:var(--study-muted);font-size:.9rem;margin:0 0 .75rem}.flash-sort{margin-top:.85rem}.flash-tools{margin-top:.65rem}.flash-tools button{font-weight:650}.flash-finished{border:2px solid var(--study-line);border-radius:14px;padding:1.5rem;text-align:center;background:#f7fbf9}.flash-finished h2{margin-top:0}.flash-shortcuts{margin:1rem 0 0;color:var(--study-muted);font-size:.88rem;text-align:center}
body.study-page{margin:0;background:var(--study-bg);color:var(--study-ink);font:16px/1.5 ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}.study-header{background:linear-gradient(120deg,var(--study-deep),var(--study-green));color:white;padding:1rem max(1rem,calc((100vw - 920px)/2))}.study-header a{color:#e6f4ee}.study-header h1{margin:.75rem 0 .2rem;font-size:clamp(1.8rem,5vw,3rem);line-height:1.08}.study-header p{margin:.2rem 0 .6rem;color:#dcece5}.study-main{max-width:920px;margin:auto;padding:1rem 1rem 3rem}.study-panel{background:var(--study-card);border:1px solid var(--study-line);border-radius:14px;padding:1rem;margin:1rem 0;box-shadow:0 8px 24px rgba(18,63,53,.07)}.study-controls{display:flex;gap:.6rem;flex-wrap:wrap;align-items:center}.study-page button,.study-page select{font:inherit}.study-page button{min-height:44px;border:0;border-radius:8px;padding:.65rem .9rem;background:var(--study-green);color:white;font-weight:800;cursor:pointer}.study-page button.secondary{background:white;color:var(--study-deep);border:1px solid var(--study-line)}.study-page button:focus-visible,.study-page select:focus-visible,.study-page [tabindex]:focus-visible{outline:3px solid #e59a61;outline-offset:2px}.study-page select{min-height:44px;border:1px solid var(--study-line);border-radius:8px;padding:.55rem;background:white}.progress-track{height:8px;background:#dce8e3;border-radius:99px;overflow:hidden;margin:.9rem 0}.progress-track i{display:block;height:100%;width:0;background:var(--study-accent);transition:width .2s}.flashcard{min-height:290px;display:flex;align-items:center;justify-content:center;text-align:center;padding:2rem;border:2px solid var(--study-line);border-radius:14px;background:white;cursor:pointer}.flashcard .face{font-size:clamp(1.25rem,4vw,2rem);font-weight:800}.flashcard .definition{font-size:1.1rem;font-weight:500}.flash-tag{display:block;color:var(--study-green);font-size:.85rem;margin-bottom:.8rem}.question-card{border:1px solid var(--study-line);border-radius:11px;padding:1rem;margin:1rem 0}.question-card h3{font-size:1rem;margin:0 0 .7rem}.question-card label{display:block;padding:.55rem;border-radius:7px;margin:.25rem 0;cursor:pointer}.question-card label:hover{background:#f0f7f4}.feedback{min-height:1.5rem;font-weight:700;margin-top:.5rem}.feedback.good{color:var(--study-good)}.feedback.bad{color:var(--study-bad)}.score{font-size:1.25rem;font-weight:850;padding:.8rem;border-left:5px solid var(--study-accent);background:#fff7ef}.review-note{border-left:4px solid var(--study-green);padding:.55rem .8rem;margin:.55rem 0;background:#f2f8f5}.review-note strong{display:block}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:620px){.study-links{display:grid}.study-links a{width:100%}.flashcard{min-height:235px;padding:1.25rem}.study-controls>*{width:100%}}@media print{.study-controls,.study-page button{display:none}.study-panel,.study-tool{box-shadow:none}}

.prompt-table-wrap{overflow-x:auto;margin:.4rem 0 .8rem;max-width:100%}
.prompt-table{border-collapse:collapse;min-width:min(100%,320px);font-size:.95rem}
.prompt-table caption{caption-side:top;text-align:left;font-weight:700;padding:.2rem 0 .4rem}
.prompt-table th,.prompt-table td{border:1px solid var(--study-line);padding:.4rem .7rem;text-align:left}
.prompt-table thead th{background:#e6f1ec}
.prompt-table tbody th{background:#f3f8f5;font-weight:600}

/* Name-bearing unit quiz completion codes. */
.quiz-name-label{display:block;font-weight:800;margin-bottom:.4rem}
.quiz-name{box-sizing:border-box;max-width:100%;width:28rem;min-height:46px;padding:.65rem;font:inherit;color:var(--study-ink);background:white;border:1px solid var(--study-line);border-radius:8px}
#nameHelp{color:var(--study-muted);font-size:.9rem}
.quiz-completion{padding:1rem;margin-top:1rem;border:2px solid var(--study-green);border-radius:12px;background:#f2f8f5;overflow-wrap:anywhere}
.quiz-completion h2{margin-top:0}
.quiz-completion label{display:block;margin-bottom:.6rem}
.quiz-completion textarea{box-sizing:border-box;display:block;width:100%;font:14px/1.5 ui-monospace,monospace;color:var(--study-ink);background:white;border:1px solid var(--study-line);border-radius:8px;padding:.65rem;resize:vertical;margin-bottom:.7rem}
.study-page input:focus-visible,.study-page textarea:focus-visible{outline:3px solid #e59a61;outline-offset:2px}
.quiz-completion[hidden]{display:none}

/* Name entry must be confirmed before the quiz is available. */
#quizStart[hidden],#quizBody[hidden]{display:none!important}