/* Plataforma EPT Computación: estilos propios sobre estilos.css */
.demo{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:#001b34;background:#ffd98a;border-radius:999px;padding:5px 12px}
.p-cab{background:#001b34;color:#fff;border-bottom:1px solid #0c3b5c;position:sticky;top:0;z-index:40}
.p-cab .envoltura{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:6px 24px;min-height:68px}
.p-cab nav{display:flex;flex-wrap:wrap;gap:4px}
.p-cab nav a{color:#c7dde1;text-decoration:none;font-weight:700;font-size:16px;padding:0 12px;min-height:44px;display:flex;align-items:center;border-radius:10px}
.p-cab nav a:hover,.p-cab nav a[aria-current=page]{color:#fff;background:rgba(199,221,225,.1)}
.p-usuario{display:flex;align-items:center;gap:12px;padding:8px 0}
.avatar{width:40px;height:40px;border-radius:50%;background:#065c86;color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;flex:none}
.p-usuario small{display:block;color:#c7dde1;font-size:13px}
.p-usuario a{color:#c7dde1;font-size:15px;margin-left:6px}

/* Bienvenida */
.p-portada{position:relative;min-height:100vh;overflow:hidden;background:#001b34;color:#fff;display:flex;flex-direction:column}
.p-portada .fotos{position:absolute;inset:0}
.p-portada .foto{position:absolute;inset:0;opacity:0;animation:pasa 21s linear infinite both}
.p-portada .foto img{width:100%;height:100%;object-fit:cover;animation:acerca 21s ease-out infinite both}
.p-portada .f2,.p-portada .f2 img{animation-delay:7s}.p-portada .f3,.p-portada .f3 img{animation-delay:14s}
.p-portada .velo{position:absolute;inset:0;background:linear-gradient(100deg,rgba(0,27,52,.96) 0%,rgba(0,27,52,.86) 45%,rgba(12,59,92,.62) 100%)}
.p-portada .circuito{position:absolute;inset:0}
.p-portada .capa{position:relative;flex:1;display:flex;flex-direction:column}
.p-top{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;padding:22px 0}
.p-centro{flex:1;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:48px;padding:16px 0 48px}
.p-centro h1{color:#fff;font-size:clamp(38px,4.8vw,66px);line-height:1.05;max-width:16ch}
.escribe{margin-top:14px;font-family:var(--display);font-weight:600;font-size:clamp(22px,2.4vw,32px);color:#c7dde1;min-height:1.3em}
.cursor{display:inline-block;width:.08em;height:.9em;margin-left:4px;vertical-align:-.08em;background:#c7dde1;animation:parpadea 1s steps(1) infinite}
@keyframes parpadea{50%{opacity:0}}
.etiquetas{list-style:none;margin:22px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.etiquetas li{display:flex;align-items:center;gap:8px;padding:9px 14px;border-radius:999px;background:rgba(6,92,134,.45);border:1px solid rgba(199,221,225,.25);font-size:16px}
.vidrio{flex:1 1 340px;max-width:430px;padding:32px 28px;border-radius:24px;background:rgba(0,27,52,.55);border:1px solid rgba(199,221,225,.28);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:0 30px 60px -20px rgba(0,0,0,.6);display:flex;flex-direction:column;gap:18px;animation:sube .9s cubic-bezier(.16,1,.3,1) .2s both}
@keyframes sube{from{opacity:0;transform:translateY(24px);filter:blur(6px)}to{opacity:1;transform:none;filter:none}}
.pestanas{display:flex;padding:4px;border-radius:12px;background:rgba(0,27,52,.6);border:1px solid rgba(199,221,225,.2)}
.pestanas button{flex:1;font:inherit;font-weight:700;font-size:16px;min-height:44px;border-radius:9px;border:0;cursor:pointer;background:transparent;color:#c7dde1}
.pestanas button[aria-selected=true]{background:#c7dde1;color:#001b34}
.vidrio label{font-weight:700}
.vidrio input{font:inherit;font-size:17px;min-height:52px;padding:12px 14px;border-radius:12px;width:100%;background:#fff;color:#02030b;border:2px solid transparent}
.vidrio input[aria-invalid=true]{border-color:#ff9b7a}
.vidrio .error{color:#ffc9b8;font-weight:700;font-size:15px;margin:0}
.vidrio .ayuda{color:#c7dde1;font-size:15px;margin:0}
.gira{animation:gira .9s linear infinite}@keyframes gira{to{transform:rotate(360deg)}}
.pie-autor{position:relative;text-align:center;padding:18px 24px 24px;line-height:1.5}

/* Aula */
.banda{position:relative;overflow:hidden;background:#001b34;color:#fff}
.banda img.fondo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.banda .velo{position:absolute;inset:0;background:linear-gradient(100deg,rgba(0,27,52,.97) 0%,rgba(0,27,52,.9) 50%,rgba(12,59,92,.7) 100%)}
.banda .envoltura{position:relative;padding-top:40px;padding-bottom:44px;display:flex;flex-wrap:wrap;gap:32px;align-items:flex-end;justify-content:space-between}
.banda h1{color:#fff;font-size:clamp(34px,4vw,52px)}
.avance{flex:1 1 300px;max-width:380px;padding:20px 22px;border-radius:18px;background:rgba(0,27,52,.6);border:1px solid rgba(199,221,225,.25);backdrop-filter:blur(12px)}
.barra-av{margin-top:12px;height:10px;border-radius:5px;background:rgba(199,221,225,.2);overflow:hidden}
.barra-av i{display:block;height:100%;border-radius:5px;background:#c7dde1;transform-origin:0 50%;animation:llenar 1.4s cubic-bezier(.16,1,.3,1) .3s both}
@keyframes llenar{from{transform:scaleX(0)}to{transform:scaleX(1)}}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips button{font:inherit;font-weight:700;font-size:16px;min-height:44px;padding:0 18px;border-radius:999px;cursor:pointer;border:2px solid #c7dde1;background:#fff;color:#0c3b5c}
.chips button[aria-selected=true]{border-color:#001b34;background:#001b34;color:#fff}
.ruta-mod{margin:0;padding:0;list-style:none;background:#fff;border:1px solid #d5e4e8;border-radius:18px;overflow:hidden}
.ruta-mod li{display:flex;flex-wrap:wrap;align-items:center;gap:16px;padding:18px 20px;border-top:1px solid #e3eef0}
.ruta-mod li:first-child{border-top:0}
.ruta-mod li.actual{background:#f2f8fa}
.nodo{flex:none;width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px}
.nodo.hecho{background:#065c86;color:#fff}
.nodo.actual{border:3px solid #065c86;color:#065c86;background:#fff;animation:late 2.4s ease-in-out infinite}
@keyframes late{0%,100%{box-shadow:0 0 0 0 rgba(6,92,134,.45)}50%{box-shadow:0 0 0 9px rgba(6,92,134,0)}}
.nodo.bloq{border:2px solid #c7dde1;color:#5b7480;background:#eef4f6}

/* Módulo */
.pasos-tab{display:flex;gap:4px;flex-wrap:wrap}
.pasos-tab button{font:inherit;font-weight:700;font-size:16px;min-height:52px;padding:0 20px;border:0;border-radius:12px 12px 0 0;cursor:pointer;display:flex;align-items:center;gap:10px;background:transparent;color:#c7dde1}
.pasos-tab button[aria-selected=true]{background:#f4f8f9;color:#001b34}
.pasos-tab .c{width:26px;height:26px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:14px;border:2px solid currentColor}
.pasos-tab button[aria-selected=true] .c{background:#065c86;color:#fff;border-color:#065c86}
.panel-paso{animation:aparece .45s cubic-bezier(.16,1,.3,1) both}
.formula{font-family:'JetBrains Mono',ui-monospace,monospace;font-size:18px;background:#001b34;color:#fff;border-radius:12px;padding:16px 20px;overflow-x:auto;white-space:nowrap}
.opcion{font:inherit;font-size:17px;text-align:left;min-height:54px;padding:10px 16px;border-radius:12px;cursor:pointer;display:flex;align-items:center;gap:14px;border:2px solid #d5e4e8;background:#fff;color:#02030b;width:100%;transition:border-color .15s ease,background-color .15s ease,transform .15s ease}
.opcion:hover{border-color:#065c86}
.opcion .l{flex:none;width:30px;height:30px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:700;background:#eef4f6;color:#0c3b5c}
.opcion.bien{border-color:#1d5b33;background:#e1efe6;color:#1d5b33;font-weight:700}.opcion.bien .l{background:#1d5b33;color:#fff}
.opcion.mal{border-color:#9a3412;background:#fdece4;color:#9a3412;font-weight:700;animation:sacude .35s ease}.opcion.mal .l{background:#9a3412;color:#fff}
@keyframes sacude{25%{transform:translateX(-5px)}75%{transform:translateX(5px)}}
.retro{margin-top:16px;padding:14px 16px;border-radius:12px;font-weight:700}
.retro.bien{background:#e1efe6;color:#1d5b33}.retro.mal{background:#fdece4;color:#9a3412}

/* Docente */
.tabla{border-collapse:collapse;width:100%;min-width:600px;font-variant-numeric:tabular-nums}
.tabla th{text-align:left;color:#3d5560;font-size:14px;padding:10px 12px;border-bottom:2px solid #c7dde1}
.tabla td{padding:13px 12px;border-bottom:1px solid #e3eef0}
.tabla tbody tr{transition:background-color .15s ease}.tabla tbody tr:hover{background:#f6fafb}
.estado{display:inline-block;font-size:14px;font-weight:700;padding:5px 11px;border-radius:999px}
.estado.ok{background:#e1efe6;color:#1d5b33}.estado.ref{background:#fdece4;color:#9a3412}.estado.pen{background:#eef4f6;color:#3d5560}
.dist{display:flex;align-items:center;gap:10px;font-size:14px}
.dist .t{width:92px;color:#3d5560}.dist .b{flex:1;height:12px;background:#eef4f6;border-radius:6px;overflow:hidden}
.dist .b i{display:block;height:100%;background:#065c86;border-radius:6px;transform-origin:0 50%;animation:llenar 1.1s cubic-bezier(.16,1,.3,1) .2s both}
select.campo{font:inherit;font-size:16px;min-height:48px;padding:0 12px;border:1px solid #a9c4ca;border-radius:12px;background:#fff;color:#02030b;width:100%}

@media (prefers-reduced-motion:reduce){
  .p-portada .foto,.p-portada .foto img,.cursor,.vidrio,.barra-av i,.nodo.actual,.panel-paso,.opcion.mal,.dist .b i{animation:none}
  .p-portada .f1{opacity:1}
}
.p-top,.p-centro{width:100%;max-width:1200px;margin:0 auto}
button.boton{font:inherit;font-weight:700;cursor:pointer;background:transparent}
button.boton.blanco{background:#fff}
button.boton.solido{background:var(--noche)}
.p-top .boton.contorno{border-color:#c7dde1;background:rgba(199,221,225,.12)}
.p-top .boton.contorno:hover{background:#c7dde1;color:#001b34}