/* La unidad utiliza el mismo armazón .article-layout/.article que las lecciones. */
.fra{max-width:1320px;margin:auto;padding:28px 56px 80px;color:var(--ink);line-height:1.8}.fra *{box-sizing:border-box}.fra a{color:var(--mint);text-underline-offset:4px}.fra-breadcrumb{font-size:14px;color:var(--muted);margin-bottom:32px}.fra-hero{padding:22px 0 30px;max-width:950px}.fra-hero>span{font-size:12px;letter-spacing:.13em;color:var(--mint);text-transform:uppercase}.fra .fra-hero h1{font-size:clamp(34px,5vw,58px);font-weight:500;line-height:1.14;letter-spacing:-.03em;margin:16px 0 24px}.fra-hero p{font-size:19px;color:var(--muted);max-width:750px}.fra h2{font-size:28px;line-height:1.3}.fra .article{font-size:var(--reading-size,16px)}.fra .article p,.fra .article li{font-size:inherit;color:#42505b}.fra .article a{color:#285e3c}.fra-section{margin:34px 0;padding-top:22px;border-top:1px solid #cbd8d0}.fra-section li{margin-bottom:10px}.fra-stats{display:grid;grid-template-columns:repeat(3,1fr);border-block:1px solid #cbd8d0;padding:18px 0;gap:14px}.fra-stats b{color:#285e3c;font-size:30px;display:block}.fra-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.fra .fra-card{display:block;background:#edf2ee;border:1px solid #b8cbbd;border-radius:10px;padding:20px;text-decoration:none}.fra-card>span{font-size:12px;letter-spacing:.08em;color:#456851}.fra .fra-card h2{font-size:21px;line-height:1.4;margin:12px 0}.fra .fra-card p{font-size:.9em}.fra-card b{font-size:14px}.fra-note{border-left:3px solid #427258;background:#e6ece8;padding:18px 22px;margin:24px 0}.fra-actions{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin:20px 0}.fra button,.fra-primary{font:inherit;font-size:15px;cursor:pointer;border:1px solid #6d8b78;border-radius:7px;background:transparent;color:inherit;padding:10px 16px;display:inline-block;text-decoration:none}.fra .fra-primary{background:var(--mint);border-color:var(--mint);color:#102218;font-weight:650}.fra .article .fra-primary{background:#285e3c;border-color:#285e3c;color:white}.fra .article button{color:#213b2d;background:#edf2ee}.fra .article button.fra-primary{color:white;background:#285e3c}.fra button:hover,.fra .fra-card:hover{border-color:#427258}.fra :focus-visible{outline:3px solid #90702a;outline-offset:4px}.fra-task{background:#fff;border:1px solid #bacdbf;border-radius:10px;margin:18px 0;padding:22px}.fra fieldset{border:0;padding:0;min-width:0}.fra legend{font-weight:600;width:100%;margin-bottom:16px}.fra legend span{display:block;color:#5c6d62;font-size:12px;letter-spacing:.06em}.fra input[type=text],.fra textarea,.fra select{font:inherit;background:#fff;border:1px solid #718b7b;border-radius:6px;padding:10px 12px;color:#142028;max-width:100%;display:block}.fra input[type=text]{width:300px;margin-top:6px}.fra textarea{width:100%;margin:10px 0}.fra-choice{display:block;padding:12px;border:1px solid #b8cbbd;border-radius:7px;margin:9px 0;cursor:pointer}.fra input[type=radio]{accent-color:#285e3c;width:18px;height:18px;vertical-align:middle;margin-right:9px}.fra-feedback{margin-bottom:0}.fra .fra-feedback[data-result=correct]{color:#1b6237}.fra .fra-feedback[data-result=wrong]{color:#8b3c10}.fra .fra-lab{background:#edf2ee;border:1px solid #b8cbbd;border-radius:10px;padding:26px}.fra-lab label{display:block;margin-bottom:10px}.fra-lab input[type=range]{width:min(100%,400px);accent-color:#285e3c;display:block;margin:8px 0}.fra-bar{display:flex;height:65px;max-width:720px;border:2px solid #546e5d;margin:16px 0}.fra-bar span{flex:1;border-right:1px solid #546e5d;background:#fff;min-width:0}.fra-bar span:last-child{border:0}.fra-bar span[data-filled=true]{background:repeating-linear-gradient(45deg,#92c4a2,#92c4a2 6px,#bcddc4 6px,#bcddc4 9px)}.fra-lab svg{width:100%;max-width:800px;height:auto;overflow:visible}.fra-lab svg text{fill:#213b2d}.fra-lab svg line{stroke:#546e5d}.fra-lab svg circle{fill:#285e3c}.fra math{font-size:1.15em}.fra math[display=block]{display:block;text-align:center;padding:20px 12px;background:#e6ece8;border-radius:7px;margin:24px 0;overflow-x:auto;max-width:100%}.fra details{border:1px solid #b8cbbd;padding:16px;border-radius:7px;margin:20px 0}.fra summary{cursor:pointer;font-weight:600;color:#285e3c}.fra-next{display:flex;justify-content:space-between;gap:20px;align-items:center;border-top:1px solid #cbd8d0;padding-top:25px}.fra-storage{font-size:13px;color:var(--muted);margin-top:28px}.fra-answer-space{height:90px;border-bottom:1px solid #7f9385;margin-bottom:28px}.fra-sheet li{break-inside:avoid}.fra [hidden]{display:none!important}@media(max-width:1100px){.fra-grid{grid-template-columns:1fr}.fra{padding-inline:30px}}@media(max-width:740px){.fra{padding-inline:22px}.fra .fra-hero h1{font-size:40px}.fra-stats{gap:10px;font-size:13px}.fra-task,.fra .fra-lab{padding:16px}.fra-next{flex-direction:column;align-items:stretch}.fra h2{font-size:25px}.fra-hero p{font-size:17px}}@media print{.fra-breadcrumb,.fra-actions,.fra-lab,.fra-next,.fra-storage,.fra-no-print,.fra-solutions,.fra button{display:none!important}.fra{color:#111;padding:0;max-width:none}.fra .fra-hero h1{font-size:30px}.fra .fra-hero{padding:0}.fra math,.fra math[display=block]{background:white;color:black}.fra p,.fra-hero p{color:#111}.fra-section{break-inside:auto}.fra-task{background:white;color:black;border-color:#aaa;break-inside:avoid}.fra h2{break-after:avoid}.fra li{color:black}.fra a{color:black}.fra .article textarea{min-height:100px}}