/* Fichas de ejemplos: estilos limitados a sus grupos y componentes. */
.pilot-groups{max-width:1100px;margin:0 auto 3rem}
.pilot-groups>.pilot-group{border-top:1px solid var(--line);padding:.4rem 0}
.pilot-groups>.pilot-group>summary{cursor:pointer;list-style-position:inside;padding:1.25rem .5rem;font-size:clamp(1.15rem,2.3vw,1.65rem);font-weight:600;line-height:1.4}
.pilot-groups>.pilot-group>summary:hover{background:var(--wash)}
.pilot-groups>.pilot-group>summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.pilot-group>summary small{font-size:.85rem;font-weight:400;color:var(--muted);margin-left:.6rem;white-space:nowrap}
.pilot-case-list{padding:.5rem clamp(.25rem,2vw,1.5rem) 1.5rem}
.pilot-example{border-bottom:1px solid var(--line);scroll-margin-top:1rem}
.pilot-example>summary{cursor:pointer;padding:1.1rem .5rem;line-height:1.5;font-size:1.05rem;font-weight:600;list-style-position:inside}
.pilot-example>summary:hover{background:var(--wash)}
.pilot-example>summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.pilot-number{font-size:.85rem;color:var(--muted);font-weight:400;font-variant-numeric:tabular-nums;margin-right:.4rem}
.pilot-case{max-width:900px;margin:0 auto;padding:1.5rem clamp(.5rem,2vw,1.8rem) 2.5rem;scroll-margin-top:1rem}
details.pilot-case>summary{cursor:pointer;padding:1rem 0;font-size:1.2rem;line-height:1.4}
.pilot-case>.pilot-hero{display:block;max-width:none;margin:0;padding:1rem 0 1.5rem;border-bottom:1px solid var(--line)}
.pilot-hero+section{padding-top:1.5rem}
.pilot-hero+section>h3{font-size:1.2rem;line-height:1.4;letter-spacing:-.02em;font-weight:600;margin:0 0 .8rem}
.pilot-hero h2,.pilot-hero h3{font-size:clamp(1.65rem,3vw,2.25rem);line-height:1.25;margin:.75rem 0 1rem;font-weight:600;max-width:35ch}
.pilot-meta{display:flex;flex-wrap:wrap;gap:.35rem 1.1rem;font-size:.82rem;line-height:1.5;color:var(--muted);margin:0 0 1rem}
.pilot-meta>*{margin:0}.pilot-question{font-size:1.1rem;line-height:1.6;max-width:68ch}
.pilot-assumptions,.pilot-missing,.pilot-limits{margin:1.5rem 0;padding:1.1rem 1.3rem;background:var(--wash);border-left:3px solid var(--line)}
.pilot-assumptions{border-left-color:var(--accent)}
.pilot-case :is(.pilot-assumptions,.pilot-missing,.pilot-limits) :is(h3,h4){font-size:1.05rem;font-weight:600;letter-spacing:normal;margin:0 0 .65rem;line-height:1.4}
.pilot-case :is(.pilot-assumptions,.pilot-missing,.pilot-limits) :last-child{margin-bottom:0}
.pilot-case p,.pilot-case li{overflow-wrap:anywhere;line-height:1.7}
.pilot-case ul,.pilot-case ol{padding-left:1.5rem}.pilot-case li+li{margin-top:.4rem}
.pilot-diagram{margin:2rem 0;padding:1.3rem 1rem;border:1px solid var(--line);background:#fff;color:var(--ink)}
.pilot-diagram svg{display:block;width:100%;height:auto;max-width:620px;margin:0 auto 1rem;overflow:visible;color:var(--ink)}
.pilot-diagram svg text{font:18px "Segoe UI",Arial,sans-serif;fill:currentColor;stroke:none}
.pilot-diagram figcaption{font-size:.9rem;line-height:1.6;max-width:75ch;margin:0 auto}
.pilot-diagram figcaption>strong{display:block;margin-bottom:.5rem;font-size:1rem}
.pilot-diagram figcaption p{margin:.6rem 0}.pilot-diagram-scale{color:var(--muted);font-size:.82rem}
.pilot-diagram-notes{margin:.6rem 0;padding-left:1.5rem}
.pilot-data{width:100%;border-collapse:collapse;margin:1.5rem 0;font-size:.95rem;font-variant-numeric:tabular-nums}
.pilot-data caption{text-align:left;font-weight:600;padding:0 0 .75rem;color:var(--ink)}
.pilot-data th,.pilot-data td{text-align:left;vertical-align:top;border-bottom:1px solid var(--line);padding:.7rem .6rem;overflow-wrap:anywhere}
.pilot-data :is(th,td):is(:nth-child(1),:nth-child(3),:nth-child(4)){white-space:nowrap;overflow-wrap:normal;word-break:normal}
.pilot-data :is(th,td):nth-child(1){min-width:5.5rem}
.pilot-data :is(th,td):nth-child(3){min-width:5rem;font-variant-numeric:tabular-nums}
.pilot-data :is(th,td):nth-child(4){min-width:5rem}
.pilot-data thead{background:var(--wash)}.pilot-data th{font-weight:600}
.pilot-data-wrap{max-width:100%;overflow-x:auto;margin:1.5rem 0}.pilot-data-wrap>.pilot-data{margin:0;min-width:30rem}
.pilot-data-wrap:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.pilot-step{padding:1.4rem 0;border-top:1px solid var(--line);scroll-margin-top:1rem}
.pilot-step>h3,.pilot-step>h4{font-size:1.2rem;line-height:1.4;letter-spacing:-.02em;font-weight:600;margin:0 0 1rem}
.pilot-step p:last-child{margin-bottom:0}
.pilot-formula{max-width:100%;min-width:0;padding:.9rem 1rem;margin:1rem 0;background:#fff;border:1px solid var(--line);font-size:1rem;line-height:1.8}
.pilot-formula-line{min-width:0;margin:.6rem 0 1rem}
.pilot-formula-label{display:block;font-size:.85rem;color:var(--muted);line-height:1.5;margin-bottom:.4rem}
.pilot-equation{max-width:100%;overflow-x:auto;padding:.2rem 0 .45rem}
.pilot-equation:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.pilot-equation math{font-size:1.1em;display:block math;text-align:left;math-style:normal;margin:0}
.pilot-formula p{margin:.35rem 0}.pilot-formula code{white-space:normal;font-size:1em}
.pilot-result{margin:1.7rem 0;padding:1.3rem;border:1px solid var(--accent);background:var(--wash)}
.pilot-result :is(h3,h4){font-size:1.2rem;font-weight:600;line-height:1.4;margin:0 0 .8rem}
.pilot-result :last-child{margin-bottom:0}
.pilot-references{font-size:.9rem;margin-top:1.8rem;padding-top:1.2rem;border-top:1px solid var(--line)}
.pilot-references :is(h3,h4){font-size:1rem;font-weight:600;letter-spacing:normal;line-height:1.4;margin:0 0 .8rem}
.pilot-references a{overflow-wrap:anywhere;text-underline-offset:3px}
.pilot-actions{display:flex;flex-wrap:wrap;gap:.7rem 1.3rem;margin:1.8rem 0 0;font-size:.95rem}
.pilot-actions a{padding:.4rem 0}.pilot-actions button{margin:0;min-height:44px}
@media(max-width:650px){
 .pilot-case{padding:1rem .25rem 2rem}.pilot-meta{display:block}.pilot-meta>*{display:block;margin-bottom:.3rem}
 .pilot-group>summary small{display:block;margin:.4rem 0 0 1rem}
 .pilot-assumptions,.pilot-missing,.pilot-limits,.pilot-result{padding:1rem}
 .pilot-diagram{padding:1rem .5rem}.pilot-diagram figcaption{font-size:.9rem}.pilot-diagram svg{min-width:0}
 .pilot-formula{padding:.7rem .6rem}.pilot-data{font-size:.88rem}.pilot-data th,.pilot-data td{padding:.6rem .4rem}
}
@media print{
 .pilot-case-list{padding:0}.pilot-example{border:0}.pilot-example>summary{display:none}
 .pilot-groups{max-width:none;margin:0}.pilot-groups>.pilot-group{border:0}
 .pilot-groups>.pilot-group>summary{padding:.5rem 0;font-size:16pt;list-style:none}
 .pilot-case{max-width:none;padding:0;margin:0;break-before:auto}
 .pilot-case>.pilot-hero{padding:0 0 .5rem}.pilot-hero :is(h2,h3){font-size:20pt;max-width:none}
 .pilot-case :is(h2,h3,h4,caption){break-after:avoid}
 .pilot-meta{font-size:9pt}.pilot-question{font-size:11pt}
 .pilot-case :is(.pilot-assumptions,.pilot-missing,.pilot-limits,.pilot-result){background:white;border:1px solid #777;padding:.7rem}
 .pilot-diagram{background:white;color:#111;break-inside:avoid;padding:.7rem;margin:1rem 0}
 .pilot-diagram svg{max-width:480px;max-height:185mm}.pilot-diagram figcaption{font-size:9pt}
 .pilot-step{padding:1rem 0}.pilot-formula{overflow:visible;border:0;padding:.3rem 0;font-size:11pt;break-inside:avoid}
 .pilot-equation{overflow:visible}.pilot-formula-label{font-size:9pt}
 .pilot-data-wrap{overflow:visible}.pilot-data-wrap>.pilot-data{min-width:0}
 .pilot-data{font-size:9pt}.pilot-data thead{display:table-header-group;background:white}.pilot-data tr{break-inside:avoid}
 .pilot-data :is(th,td):is(:nth-child(1),:nth-child(3),:nth-child(4)){min-width:0}
 .pilot-data th,.pilot-data td{padding:.4rem;border-color:#999}
 .pilot-actions{display:none!important}.pilot-references{font-size:9pt}.pilot-case p{orphans:3;widows:3}
}

/* Elegir entre los ejercicios sin abrir fichas innecesarias. */
.pilot-toolbar{display:flex;flex-wrap:wrap;align-items:flex-end;gap:14px 20px;padding:22px 0;margin:0 0 26px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.pilot-toolbar label{display:block;min-width:0;flex:1 1 14rem;font-size:14px;font-weight:600;line-height:1.5}.pilot-toolbar :is(input,select){box-sizing:border-box;display:block;width:100%;max-width:100%;min-width:0;font:inherit;font-size:16px;font-weight:400;line-height:1.5;padding:10px 12px;margin:8px 0 0;background:#fff;color:var(--ink);border:1px solid var(--line)}.pilot-toolbar>label:first-child{flex:2 1 22rem}.pilot-toolbar button{flex:0 0 auto;min-height:44px;margin:0;font-size:14px}.pilot-toolbar p{flex:1 0 100%;font-size:14px;line-height:1.5;color:var(--muted);margin:0}.pilot-copy-status{display:block;flex-basis:100%;max-width:100%;font-size:13px;line-height:1.5;overflow-wrap:anywhere;color:var(--muted)}.pilot-toolbar :is(input,select,button):focus-visible{outline:2px solid var(--accent);outline-offset:2px}@media(max-width:800px){.pilot-toolbar{gap:16px;padding:20px 0}.pilot-toolbar>label{flex:1 1 100%}.pilot-toolbar button{align-self:flex-start}.pilot-actions{max-width:100%}.pilot-actions :is(a,button){max-width:100%;box-sizing:border-box;overflow-wrap:anywhere}}@media print{.pilot-toolbar,.pilot-copy-status{display:none!important}}

/* Una sola presentación visual del título y de las condiciones del caso. */
.pilot-context{padding:1.3rem 0;border-top:1px solid var(--line);margin:0 0 1.2rem;min-width:0}.pilot-context>h3{font-size:1.2rem;font-weight:600;line-height:1.4;letter-spacing:normal;margin:0 0 1rem}.pilot-context>.pilot-assumptions,.pilot-context>.pilot-missing{background:none;border:0;padding:0;margin:1rem 0;min-width:0}.pilot-context :is(.pilot-assumptions,.pilot-missing)>h4{font-size:1rem;line-height:1.5;margin:0 0 .4rem}.pilot-context :is(.pilot-assumptions,.pilot-missing)>ul{margin:.4rem 0 0}.pilot-page-notice{font-size:.875rem;line-height:1.6;color:var(--muted);margin:0 0 .8rem}.pilot-variant-conditions{margin:0 0 1rem;padding:0 0 0 1rem;border-left:2px solid var(--line);font-size:.95rem}.pilot-variant-conditions p{margin:0 0 .7rem}.pilot-variant-conditions p:last-child{margin:0}@media screen{.pilot-hero .pilot-case-title{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}}@media(max-width:650px){.pilot-context{padding-top:1rem}.pilot-variant-conditions{padding-left:.8rem}}@media print{.pilot-context{padding-top:.8rem;margin-bottom:.8rem}.pilot-context>.pilot-assumptions,.pilot-context>.pilot-missing{border:0;background:none;padding:0}.pilot-page-notice{font-size:9pt}.pilot-variant-conditions{break-inside:avoid}}

.pilot-toolbar [hidden],#pilot-filter-status:empty,.pilot-copy-status:empty,.pilot-copy-status[hidden]{display:none!important}