/* SGE · Hojas de estilo compartidas de las 128 sesiones interactivas
   Paleta por UD (body[data-ud]) · sin dependencias externas · funciona en file:// */
:root{
  --ud1:#2563eb; --ud2:#059669; --ud3:#d97706; --ud4:#7c3aed; --ud5:#dc2626; --ud0:#5b6472;
  --accent:#5b6472;
  --ink:#1c2430; --mut:#5b6472; --bg:#f4f6fa; --card:#ffffff; --line:#e3e8f0;
  --ok:#15803d; --okbg:#e7f6ec; --ko:#b91c1c; --kobg:#fdeaea; --warn:#b45309; --warnbg:#fef3e2;
}
body[data-ud="1"]{--accent:var(--ud1)} body[data-ud="2"]{--accent:var(--ud2)}
body[data-ud="3"]{--accent:var(--ud3)} body[data-ud="4"]{--accent:var(--ud4)}
body[data-ud="5"]{--accent:var(--ud5)} body[data-ud="0"]{--accent:var(--ud0)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.55}
a{color:var(--accent)}
code,pre{font-family:"Cascadia Code",Consolas,Menlo,monospace;font-size:.92em}
pre{background:#101827;color:#e5e9f0;padding:14px 16px;border-radius:10px;overflow:auto;line-height:1.5}
code.k{background:#eef2f7;padding:1px 6px;border-radius:5px;color:#0f172a}

/* ---------- cabecera de sesión ---------- */
header.sesion{background:linear-gradient(135deg,var(--accent),color-mix(in srgb,var(--accent) 65%,#0f172a));
  color:#fff;padding:26px clamp(16px,5vw,64px) 30px}
header.sesion .volver{font-size:.85rem;color:#ffffffcc;text-decoration:none}
header.sesion .volver:hover{color:#fff}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 10px}
.chip{display:inline-block;background:#ffffff26;border:1px solid #ffffff44;color:#fff;
  padding:3px 12px;border-radius:999px;font-size:.8rem;font-weight:600;letter-spacing:.02em}
header.sesion h1{margin:.15em 0 .2em;font-size:clamp(1.5rem,3.4vw,2.3rem);line-height:1.15}
header.sesion .meta{opacity:.92;font-size:.95rem;max-width:70ch}

/* agenda */
.agenda{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.agenda span{background:#ffffff1f;border:1px solid #ffffff33;border-radius:8px;
  padding:6px 11px;font-size:.83rem}
.agenda b{font-weight:700}

/* ---------- estructura ---------- */
main{max-width:1020px;margin:0 auto;padding:26px clamp(14px,4vw,28px) 60px}
section.bloque{background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:22px clamp(16px,3vw,30px);margin:20px 0;box-shadow:0 1px 3px #0f172a0d}
section.bloque>h2{margin:0 0 12px;font-size:1.28rem;color:var(--accent);
  border-bottom:2px solid var(--line);padding-bottom:8px}
section.bloque>h3{margin:20px 0 8px;font-size:1.05rem}
.objetivos ul{margin:8px 0;padding-left:22px}
.objetivos li{margin:4px 0}

/* llamadas / avisos */
.nota{border-left:4px solid var(--accent);background:#f0f4fb;border-radius:0 10px 10px 0;
  padding:12px 16px;margin:14px 0}
.nota.tip{border-color:var(--ok);background:var(--okbg)}
.nota.atencion{border-color:var(--warn);background:var(--warnbg)}
.nota.transversal{border-color:#a21caf;background:#fdf0fd}
.nota strong:first-child{text-transform:uppercase;font-size:.72rem;letter-spacing:.08em;
  display:block;margin-bottom:4px;color:var(--mut)}

/* tabla */
table.tabla{width:100%;border-collapse:collapse;margin:12px 0;font-size:.93rem}
table.tabla th{background:color-mix(in srgb,var(--accent) 12%,#fff);text-align:left}
table.tabla th,table.tabla td{border:1px solid var(--line);padding:8px 10px;vertical-align:top}

/* ---------- componentes interactivos ---------- */
details.acordeon{border:1px solid var(--line);border-radius:10px;margin:10px 0;background:#fff;overflow:hidden}
details.acordeon summary{cursor:pointer;padding:13px 16px;font-weight:600;list-style:none;
  display:flex;justify-content:space-between;align-items:center;gap:10px}
details.acordeon summary::-webkit-details-marker{display:none}
details.acordeon summary::after{content:"+";font-size:1.3rem;color:var(--accent);font-weight:700}
details.acordeon[open] summary::after{content:"–"}
details.acordeon .contenido{padding:4px 18px 16px;border-top:1px solid var(--line)}

.tabs .tab-btns{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:0}
.tabs .tab-btns button{border:1px solid var(--line);background:#eef2f7;border-radius:9px 9px 0 0;
  padding:8px 15px;cursor:pointer;font-weight:600;color:var(--mut);font-size:.9rem}
.tabs .tab-btns button.activo{background:var(--accent);color:#fff;border-color:var(--accent)}
.tabs .tab-panel{border:1px solid var(--line);border-radius:0 10px 10px 10px;padding:16px 18px;background:#fff}

.pregunta{border:1px solid var(--line);border-radius:12px;padding:16px;margin:14px 0;background:#fff}
.pregunta .enunciado{font-weight:600;margin-bottom:10px}
.pregunta .opt{display:block;width:100%;text-align:left;margin:6px 0;padding:10px 13px;
  border:1px solid var(--line);border-radius:9px;background:#f8fafc;cursor:pointer;font-size:.95rem}
.pregunta .opt:hover{border-color:var(--accent)}
.pregunta .opt.correcta{background:var(--okbg);border-color:var(--ok);font-weight:600}
.pregunta .opt.incorrecta{background:var(--kobg);border-color:var(--ko)}
.pregunta .fb{display:none;margin-top:10px;padding:10px 13px;border-radius:9px;font-size:.92rem}
.pregunta .fb.ok{background:var(--okbg);border:1px solid var(--ok)}
.pregunta .fb.ko{display:block;background:var(--kobg);border:1px solid var(--ko)}
.pregunta.revisada .opt{cursor:default}
.pregunta .marcador{font-size:.78rem;font-weight:700;color:#fff;background:var(--accent);
  border-radius:6px;padding:2px 9px;float:right}

.empareja{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:14px 0}
@media(max-width:640px){.empareja{grid-template-columns:1fr}}
.empareja .col{display:flex;flex-direction:column;gap:8px}
.empareja .item{border:1px solid var(--line);border-radius:9px;padding:10px 13px;background:#f8fafc;
  cursor:pointer;font-size:.93rem;user-select:none}
.empareja .item:hover{border-color:var(--accent)}
.empareja .item.sel{outline:2px solid var(--accent);background:#eef2ff}
.empareja .item.bien{background:var(--okbg);border-color:var(--ok)}
.empareja .item.mal{background:var(--kobg);border-color:var(--ko)}
.empareja .item[data-pair^="d"]{background:#fff;font-weight:600}
@media(max-width:640px){.empareja .col.a .item{margin-bottom:2px}}

.huecos .frase{font-size:1.05rem;margin:10px 0;line-height:2.1}
.huecos input{border:1.5px solid var(--line);border-radius:7px;padding:5px 9px;font-size:.95em;
  min-width:120px;text-align:center}
.huecos input.bien{border-color:var(--ok);background:var(--okbg)}
.huecos input.mal{border-color:var(--ko);background:var(--kobg)}
.boton{display:inline-block;border:none;border-radius:9px;padding:10px 18px;font-weight:700;
  cursor:pointer;background:var(--accent);color:#fff;font-size:.92rem;margin:6px 6px 0 0}
.boton.secundario{background:#eef2f7;color:var(--ink);border:1px solid var(--line)}
.boton:hover{filter:brightness(1.07)}

.ordenar ol{list-style:none;padding:0;margin:12px 0}
.ordenar li{display:flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:9px;
  padding:9px 13px;margin:7px 0;background:#fff;font-size:.95rem}
.ordenar li .ctrl{margin-left:auto;display:flex;gap:5px}
.ordenar li .ctrl button{border:1px solid var(--line);background:#f1f5f9;border-radius:6px;
  width:30px;height:30px;cursor:pointer;font-size:.95rem}
.ordenar li.bien{border-color:var(--ok);background:var(--okbg)}

.flipgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px;margin:14px 0}
.flip{perspective:800px;height:130px;cursor:pointer}
.flip .in{position:relative;width:100%;height:100%;transition:transform .5s;transform-style:preserve-3d}
.flip.volteada .in{transform:rotateY(180deg)}
.flip .cara{position:absolute;inset:0;backface-visibility:hidden;border-radius:11px;
  display:flex;align-items:center;justify-content:center;text-align:center;padding:12px;font-size:.92rem}
.flip .frente{background:color-mix(in srgb,var(--accent) 10%,#fff);border:1px solid var(--line);font-weight:700}
.flip .detras{background:var(--accent);color:#fff;transform:rotateY(180deg)}

.autoeval label{display:flex;gap:10px;align-items:flex-start;border:1px solid var(--line);
  border-radius:9px;padding:10px 13px;margin:8px 0;cursor:pointer;background:#fff;font-size:.94rem}
.autoeval input{margin-top:4px;accent-color:var(--ok);transform:scale(1.2)}
.progreso{height:12px;background:#e5e9f0;border-radius:99px;overflow:hidden;margin:10px 0}
.progreso>div{height:100%;background:var(--ok);width:0;transition:width .4s}

.timer{font-variant-numeric:tabular-nums;font-weight:800;font-size:1.6rem;color:var(--accent)}

/* entregable */
.entregable{border:2px dashed var(--accent);background:color-mix(in srgb,var(--accent) 6%,#fff);
  border-radius:12px;padding:16px 20px;margin:20px 0}
.entregable h3{margin-top:0;color:var(--accent)}

/* navegación pie */
nav.pie{display:flex;justify-content:space-between;gap:12px;margin-top:34px;flex-wrap:wrap}
nav.pie a{flex:1;min-width:200px;text-decoration:none;border:1px solid var(--line);border-radius:11px;
  padding:13px 17px;background:#fff;color:var(--ink)}
nav.pie a:hover{border-color:var(--accent)}
nav.pie a strong{display:block;color:var(--accent);font-size:.78rem;text-transform:uppercase;letter-spacing:.06em}
nav.pie a span{font-weight:600}
footer.sesionpie{text-align:center;color:var(--mut);font-size:.8rem;margin-top:26px}

/* ---------- índice ---------- */
header.site{background:linear-gradient(135deg,#17233b,#334b7a);color:#fff;padding:40px clamp(16px,5vw,64px)}
header.site .kicker{letter-spacing:.12em;text-transform:uppercase;font-size:.75rem;opacity:.75;margin:0}
header.site h1{margin:.2em 0;font-size:clamp(1.6rem,4vw,2.6rem)}
header.site .sub{max-width:80ch;opacity:.92}
nav.legend{display:flex;flex-wrap:wrap;gap:8px;padding:16px clamp(16px,5vw,64px);background:#fff;
  border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
nav.legend .chip{color:#fff}
.indexwrap{max-width:1150px;margin:0 auto;padding:22px clamp(12px,3vw,28px)}
table.indextable{width:100%;border-collapse:collapse;background:#fff;font-size:.93rem}
table.indextable th,table.indextable td{border:1px solid var(--line);padding:9px 12px;text-align:left}
table.indextable thead th{background:#17233b;color:#fff}
table.indextable tr:nth-child(even) td{background:#f8fafc}
table.indextable .num{font-weight:700;color:var(--mut);width:52px}
table.indextable .ce{width:16%;color:var(--mut);font-size:.85rem}
table.indextable .tipo{width:14%;font-size:.85rem}
table.indextable .guion{font-size:.82rem;text-decoration:none;border:1px solid var(--line);
  border-radius:6px;padding:2px 8px;white-space:nowrap}
table.indextable tr.udhead td{background:#eef2f7;font-size:.85rem;border-left:5px solid var(--accent)}
footer.sitefoot{padding:22px clamp(16px,5vw,64px);color:var(--mut);font-size:.85rem;border-top:1px solid var(--line);background:#fff}
@media print{nav.pie,.boton,header.sesion .volver{display:none}body{background:#fff}}