/* Paleta común para todas las páginas de la futura web. */
:root {
  --bg-base: #FFF5EA;
  --bg-surface: #FFD0A3;
  --bg-surface-2: #FFE4CC;
  --bg-surface-3: #FFC18A;
  --bg-card: #FFE4CC;
  --text-main: #242424;
  --text-muted: #494949;
  --text-bright: #242424;
  --accent-primary: #FF7900;
  --accent-primary-hover: #FF6500;
  --accent-text: #AD3200;
  --border-subtle: #F79B47;
  --border-strong: #EF7900;
  --focus-ring: #AD3200;
}
/* Los botones de fondo naranja intenso llevan texto oscuro. */
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:150px}body{margin:0;background:var(--bg-base);color:var(--text-main);font-family:system-ui,-apple-system,'Segoe UI',sans-serif;line-height:1.65;font-size:16px}h1,h2,h3,h4{line-height:1.22;margin:0 0 .8rem}h1{font-size:clamp(2rem,4vw,3rem);max-width:26ch;letter-spacing:-.025em}h2{font-size:1.5rem}h3{font-size:1.2rem}h4{font-size:1rem}p{max-width:78ch;margin:.6rem 0 1rem}li{margin:.45rem 0}a{color:var(--accent-text);text-underline-offset:3px}a:hover{text-decoration-thickness:2px}button,input{font:inherit}button,a{touch-action:manipulation}button,.button{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;background:var(--accent-primary);color:#242424;border:1px solid #bd4b00;border-radius:6px;min-height:44px;padding:.65rem 1rem;font-weight:650;text-decoration:none;cursor:pointer;line-height:1.35}button:hover,.button:hover{background:#ffad55;text-decoration:none}button:disabled{opacity:.48;cursor:not-allowed}button.secondary,.button.secondary,.print-button{background:var(--bg-base)}:focus-visible{outline:3px solid #9b2c00;outline-offset:4px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.skip{position:fixed;top:-100px;left:12px;background:white;padding:12px;z-index:1000}.skip:focus{top:10px}header{background:var(--bg-surface);border-bottom:2px solid var(--border-subtle);position:sticky;top:0;z-index:10;box-shadow:0 3px 10px #0000000d}.header-inner{max-width:1250px;margin:auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{display:flex;align-items:center;gap:12px;color:var(--text-main);text-decoration:none}.brand-badge{display:grid;place-items:center;width:46px;height:46px;border-radius:10px;background:var(--accent-primary);font-weight:800;font-size:20px}.brand strong{font-size:19px}.brand small{display:block;color:var(--text-muted);font-size:12px}nav{display:flex;gap:8px;flex-wrap:wrap;max-width:1250px;margin:auto;padding:0 24px 12px}nav a{display:block;padding:7px 13px;border-radius:6px;font-size:.93rem;color:var(--text-main);text-decoration:none}nav a:hover{background:var(--bg-surface-3)}nav a[aria-current=page]{background:var(--accent-primary);font-weight:700}main{max-width:1200px;margin:auto;width:100%;padding:32px 24px 64px}section{margin-bottom:24px}.hero{position:relative;border:1px solid var(--border-subtle);border-left:6px solid var(--accent-primary);border-radius:16px;padding:32px;background:linear-gradient(115deg,var(--bg-surface-2),var(--bg-base));margin-bottom:28px}.hero .lead{font-size:1.15rem;max-width:75ch;margin-bottom:0}.badge{display:inline-block;background:var(--bg-surface);border:1px solid var(--border-subtle);color:#8c2900;border-radius:50px;padding:3px 11px;font-size:.8rem;font-weight:700;margin-bottom:16px}.start-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:24px}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.card,.resource-panel{padding:26px;border:1px solid var(--border-subtle);border-radius:10px;background:var(--bg-surface-2);margin-bottom:22px}.grid .card{margin-bottom:0;display:flex;flex-direction:column;align-items:flex-start}.grid .card>.button:last-child{margin-top:auto}.grid .card p{margin-bottom:20px}.card-meta{display:flex;justify-content:space-between;gap:16px;width:100%;color:var(--accent-text);font-weight:700;font-size:.85rem;margin-bottom:14px}.session-card{border-left:5px solid var(--accent-primary)}.resource-label{font-weight:650;color:var(--accent-text);font-size:.9rem}.route-list{padding-left:24px}.route-list li{margin:1rem 0}.overview{background:var(--bg-surface)}.layer{padding:12px 16px;background:var(--bg-base);border:1px solid var(--border-subtle);border-radius:6px;margin:8px 0;font-weight:700}.layer:nth-of-type(2){margin-left:18px}.layer:nth-of-type(3){margin-left:36px}.layer small{display:block;font-weight:400}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:32px 0 20px}.section-heading h2{margin:0}.section-gap{margin-top:24px}.callout{padding:22px 26px;border-left:5px solid var(--accent-primary);background:var(--bg-surface);border-radius:8px;margin:24px 0}.callout p:last-child{margin-bottom:0}.actions{display:flex;gap:10px;flex-wrap:wrap;margin:16px 0}.resource-panel{border:2px solid var(--accent-primary);background:#fff0df}.page-nav{padding:0;margin:0 0 24px}.page-nav a{border:1px solid var(--border-subtle);background:var(--bg-surface)}.step{background:#fffaf5;border:1px solid var(--border-subtle);border-radius:10px;padding:26px;margin:24px 0}.step-heading{display:flex;gap:16px;align-items:center;margin-bottom:18px}.step-heading h3{margin:0}.step-number{background:var(--accent-primary);border-radius:6px;padding:7px 11px;font-weight:750}.explain-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;border-top:1px solid var(--border-subtle);padding-top:18px;margin-top:18px}.explain-grid h4{color:var(--accent-text)}.question{background:var(--bg-surface-2);border-left:4px solid var(--accent-primary);padding:15px;margin:8px 0 20px}.check{display:flex;gap:10px;align-items:center;cursor:pointer}.check input,.choice input{width:20px;height:20px;accent-color:#ad3200;flex-shrink:0}.code-wrap{position:relative;padding-top:48px;background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:8px;margin:20px 0}.copy-button{position:absolute;right:8px;top:8px;min-height:32px;font-size:.8rem;padding:5px 10px;background:var(--bg-base)}pre{overflow:auto;font-size:.9rem;line-height:1.7;padding:16px;margin:0;background:var(--bg-surface);border-radius:6px;white-space:pre}code{font-family:ui-monospace,'DejaVu Sans Mono',monospace}.progress-label{color:var(--accent-text);font-weight:700}.search-label{display:block;font-weight:700;margin:20px 0 8px}input[type=search]{width:100%;max-width:600px;border:1px solid #b44b00;background:white;padding:12px;border-radius:6px}.glossary{display:grid;grid-template-columns:1fr 1fr;gap:16px}.term{border:1px solid var(--border-subtle);border-radius:8px;padding:18px;background:var(--bg-surface-2)}dt{font-weight:700;font-size:1.05rem;margin-bottom:8px;color:var(--accent-text)}dd{margin:0}.term[hidden]{display:none}.table-scroll{overflow:auto}table{border-collapse:collapse;width:100%;background:var(--bg-base)}caption{text-align:left;font-weight:700;padding-bottom:12px}th,td{text-align:left;vertical-align:top;padding:14px;border:1px solid var(--border-subtle)}th{background:var(--bg-surface)}.lab-toolbar{display:flex;justify-content:space-between;gap:16px;align-items:center}.folder-tabs{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0}.folder-tabs button{background:var(--bg-base)}.folder-tabs button[aria-pressed=true]{background:var(--accent-primary)}.path{font-family:ui-monospace,monospace;overflow-wrap:anywhere;background:var(--bg-base);padding:12px;border:1px solid var(--border-subtle);border-radius:5px}.file-list{min-height:110px;padding:16px;background:var(--bg-base);border-radius:8px;border:1px solid var(--border-subtle);display:flex;flex-wrap:wrap;align-items:flex-start;gap:12px}.file-list button{background:white}.file-list button[aria-pressed=true]{background:var(--bg-surface-3);outline:2px solid var(--accent-text)}.feedback{border-left:4px solid var(--accent-primary);padding:12px;min-height:48px;background:var(--bg-base)}fieldset{border:0;padding:0;margin:20px 0}legend{font-weight:700;margin-bottom:10px}.choice{display:flex;gap:10px;align-items:center;padding:14px;background:var(--bg-base);border:1px solid var(--border-subtle);border-radius:8px;margin:10px 0;cursor:pointer}.muted{color:var(--text-muted);font-size:.9rem}footer{border-top:2px solid var(--border-subtle);background:var(--bg-surface);padding:30px 24px;text-align:center;display:grid;gap:8px}footer small{color:var(--text-muted)}#toast:not(:empty){position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:#242424;color:white;padding:12px 20px;border-radius:8px;z-index:100;max-width:90vw}button.confirm{background:var(--bg-surface)}@media(max-width:700px){header{position:static}.header-inner{padding:14px 16px}.brand strong{font-size:16px}.brand small{max-width:200px}.print-button{font-size:.8rem;padding:7px}.grid,.start-grid,.explain-grid,.glossary{grid-template-columns:1fr}main{padding:20px 16px 40px}.hero{padding:24px 20px}.card,.step,.resource-panel{padding:20px}nav{padding-left:16px;padding-right:16px;gap:4px}nav a{padding:7px 9px}.lab-toolbar,.section-heading{align-items:flex-start;flex-direction:column}html{scroll-padding-top:20px}h1{font-size:2rem}.actions>.button{max-width:100%}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{header,footer,.page-nav,.copy-button,.print-button,.actions,.check,.skip,#toast{display:none!important}body{background:white;color:black;font-size:11pt}main{padding:0;max-width:none}.hero,.card,.step,.resource-panel,.callout{background:#fff;border:1px solid #aaa;padding:14px;break-inside:avoid}.grid,.start-grid,.explain-grid{display:block}a{color:black}.badge{background:#eee;color:black}pre{white-space:pre-wrap;background:#f3f3f3}h1{font-size:24pt}h2{font-size:17pt}.code-wrap{padding-top:0;background:white}.step{break-inside:auto}h2,h3{break-after:avoid}.question{background:#f3f3f3}}