/* IBCS Student Access 1.8.0 — aula virtual. Colores y tipografías del tema de institutofuentedevida.com.
   Estructura: barra lateral azul marino + área de trabajo; el curso es índice de lecciones + lector. */
.ibcs-aula{
  --a-bg:#f6f9fd; --a-surface:#ffffff; --a-ink:#1f2c3d; --a-muted:#5f6d83; --a-line:#dbe6f2;
  --a-accent:#0b4ea2; --a-accent-ink:#ffffff; --a-soft:#edf4fb; --a-rail:#072f67; --a-rail-ink:#ffffff;
  --a-orange:#f36a21; --a-orange-ink:#b84a10; --a-orange-soft:#fde8dc; --a-ok:#1d6b3a;
  --a-display:"Playfair Display",Georgia,"Times New Roman",serif;
  --a-body:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  display:grid;grid-template-columns:240px minmax(0,1fr);max-width:1240px;margin:0 auto;padding:0;
  background:var(--a-bg);color:var(--a-ink);font-family:var(--a-body);font-size:16px;line-height:1.5;
  border:1px solid var(--a-line);border-radius:22px;overflow:hidden;box-shadow:0 16px 40px rgba(7,47,103,.10)
}
body.ibcs-design-page{background:#f6f9fd}
.ibcs-aula *{box-sizing:border-box}
.ibcs-aula h1,.ibcs-aula h2,.ibcs-aula h3{font-family:var(--a-display);color:var(--a-rail);font-weight:700;line-height:1.15;text-wrap:balance;margin:0;letter-spacing:0}
.ibcs-aula h1{font-size:clamp(1.6rem,3vw,2.1rem)}
.ibcs-aula h2{font-size:1.3rem}
.ibcs-aula p{margin:0}
.ibcs-aula a{color:var(--a-accent)}
.ibcs-aula a:focus-visible,.ibcs-aula button:focus-visible{outline:3px solid var(--a-orange);outline-offset:2px}

/* Barra lateral */
.ibcs-rail{background:var(--a-rail);color:var(--a-rail-ink);padding:24px 16px;display:flex;flex-direction:column;gap:22px}
.ibcs-aula .ibcs-brand{display:flex;gap:10px;align-items:center;color:var(--a-rail-ink);text-decoration:none;font-family:var(--a-display);font-weight:700;font-size:1.1rem;line-height:1.15}
.ibcs-brand small{display:block;font-family:var(--a-body);font-weight:500;font-size:.7rem;letter-spacing:.04em;opacity:.75;margin-top:3px}
.ibcs-brand-mark{width:38px;height:38px;border-radius:50%;background:var(--a-orange);color:#fff;display:grid;place-items:center;flex:none}
.ibcs-brand-mark svg{width:20px;height:20px}
.ibcs-nav{display:flex;flex-direction:column;gap:4px}
.ibcs-aula .ibcs-nav a{display:flex;gap:10px;align-items:center;padding:10px 12px;border-radius:999px;color:var(--a-rail-ink);text-decoration:none;font-weight:600;opacity:.8}
.ibcs-aula .ibcs-nav a:hover{background:rgba(255,255,255,.1);opacity:1}
.ibcs-aula .ibcs-nav a[aria-current="page"]{background:#fff;color:var(--a-rail);opacity:1}
.ibcs-nav svg{width:18px;height:18px;flex:none}
.ibcs-who{margin-top:auto;display:flex;gap:10px;align-items:center;font-size:.88rem}
.ibcs-avatar{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.15);display:grid;place-items:center;font-weight:700;flex:none}
.ibcs-who-n{display:flex;flex-direction:column;min-width:0}
.ibcs-who-n b{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ibcs-aula .ibcs-who-n a{color:#ffd2b8;font-size:.82rem}

/* Área de trabajo */
.ibcs-aula-main{padding:28px clamp(16px,3.5vw,40px) 40px;display:flex;flex-direction:column;gap:22px;min-width:0}
.ibcs-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap}
.ibcs-head-sm{align-items:baseline}
.ibcs-sub,.ibcs-meta{color:var(--a-muted)}
.ibcs-meta{font-size:.86rem}
.ibcs-muted{color:var(--a-muted)}
.ibcs-type{font-size:.74rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--a-orange-ink)}
.ibcs-panel{background:var(--a-surface);border:1px solid var(--a-line);border-radius:16px;padding:18px;display:flex;flex-direction:column;gap:14px;min-width:0}
.ibcs-aula .ibcs-btn{display:inline-block;background:var(--a-orange);color:#fff;border:0;border-radius:999px;padding:11px 20px;font:inherit;font-weight:700;text-decoration:none;cursor:pointer;margin:0;align-self:auto}
.ibcs-aula .ibcs-btn:hover{background:#d95d19;color:#fff}
.ibcs-aula .ibcs-btn.ghost{background:transparent;color:var(--a-ink);border:1px solid var(--a-line)}
.ibcs-aula .ibcs-btn.ghost:hover{border-color:var(--a-accent);color:var(--a-accent)}
.ibcs-aula .ibcs-btn:disabled{opacity:.45;cursor:not-allowed}
.ibcs-aula .ibcs-back{color:var(--a-muted);font-weight:600;font-size:.9rem;text-decoration:none;align-self:flex-start}

/* Inicio: dos columnas como el boceto (módulos | próximas entregas) */
.ibcs-two{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:22px;align-items:start}
.ibcs-two .ibcs-grid{grid-template-columns:repeat(auto-fill,minmax(230px,1fr))}
.ibcs-list{display:flex;flex-direction:column}
.ibcs-row{display:flex;gap:12px;align-items:flex-start;padding:10px 0;border-top:1px solid var(--a-line)}
.ibcs-row:first-child{border-top:0;padding-top:0}
.ibcs-row.is-past{opacity:.7}
.ibcs-date{width:48px;flex:none;text-align:center;border-radius:10px;background:var(--a-bg);padding:5px 0;font-variant-numeric:tabular-nums}
.ibcs-date b{display:block;font-family:var(--a-display);font-size:1.15rem;color:var(--a-rail);line-height:1.1}
.ibcs-date span{font-size:.68rem;text-transform:uppercase;letter-spacing:.08em;color:var(--a-muted)}
.ibcs-row-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}
.ibcs-row-t{font-weight:600}
.ibcs-row details summary{cursor:pointer;list-style:none}
.ibcs-row details summary::-webkit-details-marker{display:none}
.ibcs-row details summary::after{content:' ▾';color:var(--a-muted);font-size:.8rem}
.ibcs-row details[open] summary::after{content:' ▴'}
.ibcs-row details p{margin:6px 0 2px;font-size:.9rem;color:var(--a-ink)}
.ibcs-row .ibcs-status{margin-top:2px}
.ibcs-who-r{font-size:.8rem;opacity:.85}
.ibcs-grade-n{font-family:var(--a-display);font-size:1.3rem;color:var(--a-rail)}
div.ibcs-card{opacity:.85}

/* Cifras */
.ibcs-stat{display:flex;gap:30px;flex-wrap:wrap}
.ibcs-stat b{display:block;font-family:var(--a-display);font-size:1.6rem;color:var(--a-rail);font-variant-numeric:tabular-nums}
.ibcs-stat span{font-size:.85rem;color:var(--a-muted)}
.ibcs-access{font-size:.92rem;background:var(--a-soft);border-radius:10px;padding:8px 12px}

/* Programa de 12 módulos */
.ibcs-path{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px}
.ibcs-aula .ibcs-step{border:1px solid var(--a-line);border-radius:12px;padding:10px 12px;display:flex;flex-direction:column;gap:3px;background:var(--a-surface);color:var(--a-ink);text-decoration:none}
.ibcs-aula .ibcs-step:hover{border-color:var(--a-accent)}
.ibcs-step b{font-family:var(--a-display);font-size:1.4rem;color:var(--a-accent);line-height:1;font-variant-numeric:tabular-nums}
.ibcs-step-name{font-size:.9rem;font-weight:600}
.ibcs-step-meta{font-size:.8rem;color:var(--a-muted)}
.ibcs-aula .ibcs-step.is-locked{background:transparent;border-style:dashed}
.ibcs-step.is-locked b{color:var(--a-muted)}
.ibcs-step.is-locked .ibcs-step-meta{color:var(--a-orange-ink);font-weight:600}

/* Tarjetas de módulo */
.ibcs-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.ibcs-aula .ibcs-card{background:var(--a-surface);border:1px solid var(--a-line);border-radius:14px;overflow:hidden;display:flex;flex-direction:column;color:inherit;text-decoration:none}
.ibcs-aula .ibcs-card:hover{border-color:var(--a-accent)}
.ibcs-cover{height:84px;background:linear-gradient(120deg,#072f67,#0b4ea2);display:flex;align-items:flex-end;justify-content:space-between;padding:10px 14px;position:relative}
.ibcs-cover::after{content:"";position:absolute;left:0;bottom:0;height:4px;width:30%;background:var(--a-orange)}
.ibcs-code{font-weight:700;color:#fff;font-size:.8rem;letter-spacing:.06em;background:rgba(255,255,255,.16);padding:2px 8px;border-radius:4px}
.ibcs-num{font-family:var(--a-display);color:rgba(255,255,255,.35);font-size:2.4rem;line-height:1}
.ibcs-card-body{padding:14px;display:flex;flex-direction:column;gap:8px;flex:1}
.ibcs-card-t{font-family:var(--a-display);font-weight:700;font-size:1.05rem;color:var(--a-rail);line-height:1.2}
.ibcs-aula .ibcs-bar{display:block;height:6px;background:var(--a-soft);border-radius:4px;overflow:hidden;min-width:0}
.ibcs-aula .ibcs-bar span{display:block;height:100%;background:var(--a-accent);border-radius:4px}
.ibcs-pct{display:flex;justify-content:space-between;gap:8px;font-size:.8rem;color:var(--a-muted);font-variant-numeric:tabular-nums}

/* Estados */
.ibcs-aula .ibcs-status{display:inline-block;padding:2px 9px;border-radius:999px;font-size:.75rem;font-weight:700;white-space:nowrap}
.ibcs-aula .ibcs-status.is-graded{background:#e3f1e8;color:var(--a-ok)}
.ibcs-aula .ibcs-status.is-pending{background:var(--a-orange-soft);color:var(--a-orange-ink)}
.ibcs-aula .ibcs-status.is-progress{background:var(--a-soft);color:var(--a-accent)}
.ibcs-aula .ibcs-status.is-none{background:#eef1f5;color:var(--a-muted)}

/* Calificaciones */
.ibcs-scroll{overflow-x:auto}
.ibcs-table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}
.ibcs-table th,.ibcs-table td{text-align:left;padding:10px 8px;border-top:1px solid var(--a-line);vertical-align:top}
.ibcs-table th{font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;color:var(--a-muted);border-top:0;background:none}
.ibcs-table td small{display:block;color:var(--a-muted);font-size:.78rem}
.ibcs-table strong{font-family:var(--a-display);font-size:1.2rem;color:var(--a-rail)}

/* Curso: índice + lector */
.ibcs-course{display:grid;grid-template-columns:280px minmax(0,1fr);gap:22px;align-items:start}
.ibcs-course .ibcs-index{grid-column:1;grid-row:1}
.ibcs-course .ibcs-reader{grid-column:2;grid-row:1}
.ibcs-index{position:sticky;top:90px}
.ibcs-mod{display:flex;flex-direction:column;gap:2px}
.ibcs-aula .ibcs-mod h3{font-family:var(--a-body);font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--a-muted);padding:6px 4px 4px}
.ibcs-aula .ibcs-les{display:flex;gap:10px;align-items:center;padding:8px;border-radius:10px;font-size:.93rem;color:var(--a-ink);text-decoration:none}
.ibcs-aula .ibcs-les:hover{background:var(--a-bg)}
.ibcs-aula .ibcs-les[aria-current="true"]{background:var(--a-soft);font-weight:600}
.ibcs-tick{width:20px;height:20px;border-radius:50%;border:2px solid var(--a-line);flex:none;display:grid;place-items:center;font-size:.7rem}
.ibcs-tick.is-done{background:var(--a-accent);border-color:var(--a-accent);color:#fff}
.ibcs-reader{gap:16px}
.ibcs-pane{display:flex;flex-direction:column;gap:12px}
.ibcs-aula .ibcs-pane[hidden]{display:none}
.ibcs-pane .ibcs-video-wrap{border-radius:12px;background:#000}
.ibcs-pane-tools{display:flex;justify-content:flex-end}
.ibcs-aula .ibcs-fs{display:inline-flex;gap:8px;align-items:center;padding:8px 14px;font-size:.9rem}
.ibcs-fs svg{width:18px;height:18px}
.ibcs-video-wrap:fullscreen{padding-bottom:0!important;height:100%!important;border-radius:0!important;background:#000}
.ibcs-video-wrap:-webkit-full-screen{padding-bottom:0!important;height:100%!important;border-radius:0!important;background:#000}
.ibcs-video-wrap.is-cine{position:fixed!important;inset:0;z-index:99999;padding-bottom:0!important;height:100%!important;border-radius:0!important}
.ibcs-pane-state{font-size:.88rem}
.ibcs-actions{display:flex;gap:10px;justify-content:space-between;flex-wrap:wrap;border-top:1px solid var(--a-line);padding-top:14px}
.ibcs-aula .ibcs-lesson-empty{aspect-ratio:16/9;border:2px dashed var(--a-line);border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--a-muted);font-style:italic}
.ibcs-intro{color:var(--a-muted)}

/* Formulario de acceso dentro del aula */
.ibcs-aula .ibcs-gate{margin:8px auto;border-top-color:var(--a-rail)}
.ibcs-aula .ibcs-gate button{background:var(--a-orange);color:#fff}

@media (max-width:1180px){
  .ibcs-course{grid-template-columns:1fr}
  .ibcs-course .ibcs-reader{grid-column:1;grid-row:1}
  .ibcs-course .ibcs-index{grid-column:1;grid-row:2;position:static}
  .ibcs-two{grid-template-columns:1fr}
}
@media (max-width:900px){
  .ibcs-aula{grid-template-columns:1fr;border-radius:16px}
  .ibcs-rail{flex-direction:row;align-items:center;flex-wrap:wrap;gap:10px;padding:10px 14px}
  .ibcs-brand-t{display:none}
  .ibcs-nav{flex-direction:row;flex:1;overflow-x:auto}
  .ibcs-aula .ibcs-nav a{padding:8px 10px}
  .ibcs-nav .ibcs-lbl{display:none}
  .ibcs-aula .ibcs-nav a[aria-current="page"] .ibcs-lbl{display:inline}
  .ibcs-who{margin-top:0}
  .ibcs-who-n b{display:none}
  .ibcs-course{grid-template-columns:1fr}
  .ibcs-index{position:static}
  .ibcs-reader{order:-1}
}
@media (max-width:640px){
  .ibcs-table thead{display:none}
  .ibcs-table,.ibcs-table tbody,.ibcs-table tr,.ibcs-table td{display:block;width:100%}
  .ibcs-table tr{border-top:1px solid var(--a-line);padding:8px 0}
  .ibcs-table td{border:0;padding:4px 0}
  .ibcs-table td::before{content:attr(data-label);display:block;font-size:.7rem;text-transform:uppercase;letter-spacing:.06em;color:var(--a-muted);font-weight:700}
}
@media (prefers-reduced-motion:reduce){.ibcs-aula *{transition:none!important;scroll-behavior:auto!important}}
/* 1.9.1 — barra del estudiante en móvil (añadir al final de ibcs-aula.css) */
@media (max-width:900px){
  .ibcs-rail{max-width:100%;overflow:hidden}
  .ibcs-aula .ibcs-nav a,.ibcs-aula .ibcs-who-n a{min-height:40px;min-width:40px;display:inline-flex;align-items:center;justify-content:center}
  .ibcs-nav{min-width:0;flex-wrap:wrap;overflow:visible}
  .ibcs-nav .ibcs-lbl,.ibcs-aula .ibcs-nav a[aria-current="page"] .ibcs-lbl{white-space:nowrap}
}
@media (max-width:480px){
  .ibcs-rail{display:grid;grid-template-columns:auto minmax(0,1fr);grid-template-areas:"brand who" "nav nav";gap:8px 10px;align-items:center}
  .ibcs-rail>.ibcs-brand{grid-area:brand}
  .ibcs-rail>.ibcs-who{grid-area:who;justify-self:end;min-width:0}
  .ibcs-rail>.ibcs-nav{grid-area:nav;flex-wrap:nowrap;width:100%}
  .ibcs-nav a{flex:1 1 0;min-width:0}
  .ibcs-who-n{display:flex;flex-direction:row;gap:6px;align-items:center;white-space:nowrap}
  .ibcs-aula .ibcs-who-n a{padding:0 6px}
}
/* 1.9.2 — pestaña activa crece para mostrar su etiqueta (móvil) */
@media (max-width:480px){
  .ibcs-aula .ibcs-nav a[aria-current="page"]{flex:2 1 auto;min-width:max-content;white-space:nowrap}
}