/* =====================================================================
   CERTICOM · portada
   Diseño aprobado en la vista previa: foto con capa azul, titular en serif,
   tres paneles montados, sección blanca con cifras. Paleta: azul UNAP
   (base), oro de la escuela (acento) y cálido suave (solo detalles).
   Tipografía de PRAXIS: Montserrat · Source Serif 4 · Public Sans.
   ===================================================================== */

/* =====================================================================
   PALETA CERTICOM — escalas (no solo 3 colores)
   Azul UNAP · Petróleo · Ocre-naranja (acento) · Oro · Neutros
   ===================================================================== */
:root {
  /* Azul institucional UNAP (800 = #0f2a5c, el color de la web) */
  --az-50:#eef3fb; --az-100:#d8e3f5; --az-200:#b2c7eb; --az-300:#83a2dc; --az-400:#557cc6;
  --az-500:#3560ab; --az-600:#264b8c; --az-700:#1b3b72; --az-800:#0f2a5c; --az-900:#0b1f45; --az-950:#06132c;
  /* Complemento cálido (solo tonos suaves): puntos de estado y detalles */
  --oc-50:#fff5ec; --oc-100:#fde6cf; --oc-200:#f9c99b; --oc-300:#f4a763;
  /* Oro: el ocre de la escuela (#b3812f) como acento principal */
  --or-50:#fbf6ec; --or-100:#f5e9cf; --or-200:#ecd5a3; --or-300:#dfba70; --or-400:#cc9d47;
  --or-500:#b3812f; --or-600:#956a25; --or-700:#77541f; --or-800:#5b401a; --or-900:#3f2c13;
  /* Neutros */
  --gr-0:#ffffff; --gr-50:#f6f7f9; --gr-100:#eceff3; --gr-200:#d9dee6; --gr-300:#b9c1cd;
  --gr-400:#8d97a6; --gr-500:#667183; --gr-600:#4b5565; --gr-700:#353d4a; --gr-900:#161b24;
  /* Estado */
  --ok:#2fb873; --alerta:#f0b429; --error:#e0564f;
  /* Tipografía: la de PRAXIS */
  --f-titulo:"Montserrat", system-ui, sans-serif;
  --f-texto:"Public Sans", system-ui, sans-serif;
  --f-serif:"Source Serif 4", Georgia, serif;
}
* { box-sizing: border-box; }
body { margin: 0; font: 400 15px/1.6 var(--f-texto); color: var(--gr-700); background: var(--gr-50); }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
[hidden] { display: none !important; }


.btn { display: inline-flex; align-items: center; gap: .55rem; padding: .8rem 1.4rem; border-radius: 8px; border: 1px solid transparent; font: 600 .86rem var(--f-titulo); cursor: pointer; transition: .2s; }
.btn-acento { background: linear-gradient(180deg, var(--or-400), var(--or-600)); color: #fff; box-shadow: 0 10px 26px -10px rgba(179,129,47,.8); }
.btn-acento:hover { background: var(--or-600); }
.btn-borde { border-color: rgba(255,255,255,.45); color: #fff; }
.btn-borde:hover { background: rgba(255,255,255,.1); }
.btn-azul { background: var(--az-500); color: #fff; }

/* =====================================================================
   PORTADA (referencia 2)
   ===================================================================== */
.p-cab { position: absolute; z-index: 5; top: 0; left: 0; right: 0; }
.p-cab .cont { display: flex; align-items: center; gap: 2rem; height: 84px; }
.cont { width: min(1180px, 100% - 48px); margin: 0 auto; }
.p-logo { display: flex; align-items: center; gap: .7rem; font: 800 1.35rem var(--f-titulo); letter-spacing: .04em; color: #fff; }
.p-logo img { width: 58px; }
.p-logo b { font-weight: 800; } .p-logo span { color: var(--or-300); }
.p-nav { display: flex; gap: 1.8rem; margin-left: auto; font: 500 .9rem var(--f-titulo); color: #dfe7f5; }
.p-nav a { padding: .3rem 0; border-bottom: 2px solid transparent; }
.p-nav a.on, .p-nav a:hover { color: #fff; border-color: var(--or-300); }

.p-hero { position: relative; color: #fff; isolation: isolate; overflow: hidden; }
.p-hero::before { content: ""; position: absolute; inset: 0; z-index: -2; background: url("/assets/img/exposicion-estudiantes.jpg") center 35% / cover; }
.p-hero::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(100deg, rgba(6,19,44,.94) 0%, rgba(15,42,92,.82) 45%, rgba(27,59,114,.45) 100%), linear-gradient(180deg, transparent 60%, rgba(6,19,44,.85) 100%); }
.p-hero .cont { padding: 160px 0 230px; }
.p-pildora { display: inline-flex; align-items: center; gap: .5rem; padding: .35rem .85rem; border-radius: 999px; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.2); font: 600 .72rem var(--f-titulo); letter-spacing: .08em; text-transform: uppercase; }
.p-pildora i { width: 7px; height: 7px; border-radius: 50%; background: var(--oc-300); }
.p-hero h1 { margin: 1.2rem 0 .8rem; font: 600 clamp(2.6rem, 5.6vw, 4.4rem)/1.04 var(--f-serif); letter-spacing: -.01em; max-width: 720px; }
.p-hero h1 em { font-style: normal; color: var(--or-300); }
.p-hero p { margin: 0 0 2rem; font-size: 1.12rem; font-weight: 300; color: #dbe4f4; max-width: 560px; }
.p-acciones { display: flex; gap: .8rem; flex-wrap: wrap; }

/* tres paneles montados sobre la foto */
.p-tira { position: relative; z-index: 3; display: grid; grid-template-columns: 1fr 1.15fr 1fr; margin-top: -150px; box-shadow: 0 40px 80px -30px rgba(6,19,44,.6); }
.p-col { padding: 2.2rem 2rem; color: #e4ebf7; }
.p-col h2 { margin: 0 0 1rem; font: 600 1.35rem var(--f-titulo); color: #fff; }
.p-col1 { position: relative; isolation: isolate; background: url("/assets/img/escuela-fachada.jpg") center / cover; }
.p-col1::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(11,31,69,.86), rgba(6,19,44,.95)); }
.p-col1 p { font-size: .9rem; color: #c9d4e8; }
.p-col1 a { display: inline-flex; gap: .4rem; margin-top: .6rem; font: 600 .82rem var(--f-titulo); color: var(--or-300); }
.p-col2 { background: linear-gradient(160deg, var(--az-700), var(--az-800)); margin-top: -28px; padding-top: 3rem; border-top: 3px solid var(--or-500); }
.p-grid4 { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid rgba(255,255,255,.12); }
.p-grid4 > div { padding: 1.2rem 1rem 1.2rem 0; border-bottom: 1px solid rgba(255,255,255,.12); }
.p-grid4 > div:nth-child(odd) { border-right: 1px solid rgba(255,255,255,.12); }
.p-grid4 > div:nth-child(even) { padding-left: 1.1rem; }
.p-grid4 i { font-size: 1.5rem; color: var(--az-300); }
.p-grid4 h3 { margin: .5rem 0 .3rem; font: 600 .92rem/1.25 var(--f-titulo); color: #fff; }
.p-grid4 p { margin: 0; font-size: .78rem; color: #b6c4de; }
.p-col3 { background: var(--az-900); }
.p-foto { position: relative; height: 128px; margin-bottom: .8rem; border-radius: 4px; overflow: hidden; }
.p-foto img { width: 100%; height: 100%; object-fit: cover; }
.p-foto span { position: absolute; left: 0; right: 0; bottom: 0; padding: .55rem .8rem; background: linear-gradient(0deg, rgba(6,19,44,.92), transparent); font: 600 .82rem var(--f-titulo); color: #fff; }

.p-blanco { background: #fff; padding: 5rem 0; }
.p-blanco .cont { display: grid; grid-template-columns: 1fr 1fr; gap: 3.5rem; align-items: center; }
.p-titulo-serif { margin: 0 0 1rem; font: 400 2.3rem/1.15 var(--f-serif); color: var(--az-900); }
.p-titulo-serif b { font-weight: 700; }
.p-blanco p { color: var(--gr-600); }
.p-cifras { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 2rem; border: 1px solid var(--gr-200); }
.p-cifras div { padding: 1.2rem 1.1rem; border-right: 1px solid var(--gr-200); }
.p-cifras div:last-child { border-right: 0; }
.p-cifras b { display: block; font: 400 2.1rem/1 var(--f-serif); color: var(--az-700); }
.p-cifras span { display: block; margin-top: .5rem; font-size: .78rem; color: var(--gr-500); }
.p-img-lado { height: 380px; object-fit: cover; width: 100%; border-radius: 4px; box-shadow: 0 30px 60px -30px rgba(6,19,44,.5); }
.p-banda { background: linear-gradient(120deg, var(--az-900), var(--az-700)); color: #fff; padding: 4rem 0; }
.p-pasos { display: grid; grid-template-columns: repeat(6, 1fr); gap: 1px; background: rgba(255,255,255,.12); margin-top: 2rem; }
.p-pasos div { background: var(--az-900); padding: 1.3rem 1rem; font-size: .82rem; color: #c3cfe6; }
.p-pasos b { display: block; font: 700 1.6rem var(--f-titulo); color: var(--or-300); }
.p-pasos strong { display: block; margin: .3rem 0 .2rem; color: #fff; font: 600 .9rem var(--f-titulo); }


/* ---------- Cabecera: se compacta al bajar ---------- */
.p-cab { position: fixed; transition: background .3s, box-shadow .3s; }
.p-cab.compacta { background: rgba(6,19,44,.88); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); box-shadow: 0 10px 30px -12px rgba(0,0,0,.5); }
.p-cab .cont { transition: height .3s; }
.p-cab.compacta .cont { height: 68px; }
.p-nav a { cursor: pointer; }
.hamb { display: none; width: 44px; height: 44px; place-items: center; border: 1px solid rgba(255,255,255,.3); border-radius: 10px; background: rgba(6,19,44,.5); color: #fff; font-size: 1.4rem; cursor: pointer; }
.menu-movil { display: none; position: absolute; left: 16px; right: 16px; top: 76px; padding: .6rem; background: var(--az-900); border: 1px solid rgba(223,186,112,.3); border-radius: 14px; box-shadow: 0 24px 60px rgba(0,0,0,.5); }
.menu-movil.abierto { display: block; }
.menu-movil a { display: block; padding: .85rem 1rem; border-radius: 9px; font: 600 .86rem var(--f-titulo); color: #fff; }
.menu-movil a:hover { background: var(--az-700); color: var(--or-200); }
.salto { position: absolute; left: 12px; top: -60px; z-index: 100; background: var(--or-500); color: #fff; padding: .7rem 1rem; border-radius: 8px; font-weight: 700; }
.salto:focus { top: 12px; }
:focus-visible { outline: 3px solid var(--or-300); outline-offset: 3px; border-radius: 4px; }

/* ---------- Módulos por estructura ---------- */
.p-modulos { background: var(--gr-50); padding: 4.5rem 0; }
.p-modulos .cab-sec { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 1.2rem; margin-bottom: 2rem; }
.p-modulos .cab-sec p { margin: 0; color: var(--gr-500); max-width: 520px; }
.estructuras { display: flex; gap: 4px; padding: 4px; border-radius: 12px; background: #fff; border: 1px solid var(--gr-200); }
.estructuras button { padding: .65rem 1.1rem; border: 0; border-radius: 9px; background: transparent; color: var(--az-800); font: 600 .78rem var(--f-titulo); cursor: pointer; text-align: left; }
.estructuras button small { display: block; font: 500 .66rem var(--f-texto); color: var(--gr-500); }
.estructuras button.on { background: var(--az-800); color: #fff; }
.estructuras button.on small { color: var(--az-200); }
.modulos-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.modulo { display: flex; flex-direction: column; padding: 1.6rem; background: #fff; border: 1px solid var(--gr-200); border-top: 3px solid var(--or-400); transition: .25s; }
.modulo:hover { box-shadow: 0 24px 50px -28px rgba(6,19,44,.45); transform: translateY(-3px); }
.modulo .icono { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 12px; background: var(--az-50); color: var(--az-700); font-size: 1.6rem; margin-bottom: 1rem; }
.modulo h3 { margin: 0 0 .5rem; font: 600 1rem/1.3 var(--f-titulo); color: var(--az-900); }
.modulo p { margin: 0 0 1.2rem; font-size: .86rem; color: var(--gr-600); }
.modulo .datos { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: auto; border: 1px solid var(--gr-200); }
.modulo .datos div { padding: .7rem .4rem; text-align: center; border-right: 1px solid var(--gr-200); }
.modulo .datos div:last-child { border-right: 0; }
.modulo .datos b { display: block; font: 400 1.5rem/1 var(--f-serif); color: var(--az-700); }
.modulo .datos span { font-size: .64rem; letter-spacing: .06em; text-transform: uppercase; color: var(--gr-500); }

/* ---------- Ayuda ---------- */
.p-ayuda { background: #fff; padding: 4.5rem 0; }
.faq { display: grid; gap: .7rem; max-width: 860px; margin-top: 1.6rem; }
.faq details { background: var(--gr-50); border: 1px solid var(--gr-200); border-radius: 10px; transition: .2s; }
.faq details[open] { background: #fff; border-color: var(--az-300); box-shadow: 0 14px 30px -20px rgba(6,19,44,.35); }
.faq summary { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1.05rem 1.3rem; cursor: pointer; list-style: none; font: 600 .95rem var(--f-titulo); color: var(--az-900); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary i { color: var(--or-500); transition: transform .25s; }
.faq details[open] summary i { transform: rotate(45deg); }
.faq .respuesta { padding: 0 1.3rem 1.2rem; color: var(--gr-600); font-size: .92rem; }
.faq .respuesta a { color: var(--az-600); text-decoration: underline; }
.ayuda-pie { margin-top: 1.6rem; color: var(--gr-600); font-size: .9rem; }
.ayuda-pie a { color: var(--az-700); font-weight: 600; border-bottom: 2px solid var(--or-300); }

/* ---------- Pie ---------- */
.p-pie { background: var(--az-950); color: #b7c4de; padding: 2.6rem 0 0; }
.p-pie .cont { display: grid; grid-template-columns: auto 1fr auto; gap: 2rem; align-items: center; }
.p-pie nav { display: flex; flex-wrap: wrap; gap: 1.6rem; justify-content: center; font: 600 .78rem var(--f-titulo); }
.p-pie nav a:hover, .p-pie .contacto a:hover { color: var(--or-200); }
.p-pie .contacto { display: flex; flex-wrap: wrap; gap: 1rem; font-size: .82rem; }
.p-pie .contacto i { color: var(--or-300); margin-right: .3rem; }
.p-pie .sello { display: flex; align-items: center; justify-content: center; gap: .8rem; margin-top: 2rem; padding: 1rem; border-top: 1px solid rgba(255,255,255,.1); font-size: .74rem; color: #8b9bbd; text-align: center; }
.p-pie .sello img { width: 26px; opacity: .8; }

/* ---------- Aparecer al bajar ---------- */
.revela { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
.revela.visto { opacity: 1; transform: none; }
.revela.d1 { transition-delay: .08s; }
.revela.d2 { transition-delay: .16s; }
@media (prefers-reduced-motion: reduce) { .revela { opacity: 1; transform: none; transition: none; } }

@media (max-width: 900px) {
  .hamb { display: grid; }
  .p-cab .btn-acento { margin-left: auto; padding: .65rem 1rem; }
  .p-hero .cont { padding: 120px 0 200px; }
  .modulos-grid { grid-template-columns: 1fr; }
  .p-pie .cont { grid-template-columns: 1fr; justify-items: center; text-align: center; }
}

/* =====================================================================
   VENTANAS DE INGRESO, REGISTRO, COORDINACIÓN Y DOCENTES
   (las mismas de antes, ahora con la paleta azul + oro)
   ===================================================================== */
:root {
  --p1: var(--az-950); --p2: var(--az-800); --p3: var(--az-700); --p4: #6b7a99; --p5: #b9c6e2; --p6: #e1e7f3;
  --oro: var(--or-400); --oro-2: var(--or-600); --oro-claro: var(--or-200);
  --borde: rgba(223,186,112,.25); --borde-celeste: rgba(131,162,220,.45);
}
.btn-oro { background: linear-gradient(180deg, var(--or-400), var(--or-600)); color: #fff; border-color: var(--or-500); box-shadow: 0 10px 26px -10px rgba(179,129,47,.8); }
.btn-oro:hover { filter: brightness(1.06); }
  /* ---------- Ventana de ingreso ---------- */
  dialog { width: min(420px, calc(100% - 32px)); padding: 0; border: 1px solid var(--borde-celeste); border-radius: 20px; background: var(--p2); color: var(--p6); box-shadow: 0 40px 100px rgba(0, 0, 0, .7); }
  dialog::backdrop { background: rgba(5, 11, 31, .78); backdrop-filter: blur(6px); }
  dialog[open] { animation: aparece .3s ease both; }
  .dlg { padding: 2rem 1.8rem 1.6rem; }
  .dlg .cerrar { position: absolute; top: 12px; right: 12px; width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--borde); background: transparent; color: #fff; font-size: 1.1rem; cursor: pointer; }
  .dlg .cerrar:hover { background: var(--p3); }
  .dlg .cab { text-align: center; margin-bottom: 1.4rem; }
  .dlg .cab img { width: 54px; }
  .dlg h3 { margin: .6rem 0 .2rem; font: 700 1.1rem "Montserrat", sans-serif; letter-spacing: .12em; text-transform: uppercase; color: #fff; }
  .dlg .cab p { margin: 0; font-size: .82rem; color: var(--p5); }
  .dlg label { display: block; margin: 1rem 0 .4rem; font: 600 .66rem "Montserrat", sans-serif; letter-spacing: .14em; text-transform: uppercase; color: var(--p5); }
  .dlg input { width: 100%; min-height: 48px; padding: .75rem 1rem; background: var(--p1); border: 1px solid var(--p4); border-radius: 10px; color: #fff; font: 400 .95rem "Public Sans"; }
  .dlg input:focus { outline: none; border-color: var(--oro); box-shadow: 0 0 0 3px rgba(204, 157, 71, .25); }
  .dlg .btn { width: 100%; margin-top: 1.4rem; }
  .dlg .enlaces { display: flex; justify-content: space-between; gap: 1rem; margin-top: 1.1rem; font-size: .8rem; flex-wrap: wrap; }
  .dlg .enlaces a { color: var(--oro-claro); text-decoration: underline; }
  .dlg .nota { margin-top: 1rem; padding: .7rem .9rem; border-radius: 10px; background: rgba(131, 162, 220, .1); border: 1px solid var(--borde-celeste); font-size: .78rem; color: var(--p6); display: none; }
  .oculto { display: none; }
  .dlg .enlace-btn { background: none; border: 0; padding: 0; color: var(--oro-claro); font: inherit; text-decoration: underline; cursor: pointer; }
  .dlg .nota-fija { margin: 0 0 .4rem; font-size: .84rem; color: var(--p5); }
  .dlg .nota { display: none; margin-top: 1rem; padding: .75rem .95rem; border-radius: 10px; font-size: .84rem; line-height: 1.45; }
  .dlg .nota.error { display: block; background: rgba(229, 83, 83, .12); border: 1px solid rgba(229, 83, 83, .6); color: #ffd0d0; }
  .dlg .nota.ok { display: block; background: rgba(47, 184, 115, .12); border: 1px solid rgba(47, 184, 115, .6); color: #c8f2dc; }
  .dlg .nota.info { display: block; background: rgba(131, 162, 220, .1); border: 1px solid var(--borde-celeste); color: var(--p6); }
  .dlg .btn[disabled] { opacity: .65; cursor: progress; }
  .toast { position: fixed; left: 50%; bottom: 28px; z-index: 90; transform: translate(-50%, 20px); max-width: min(440px, calc(100% - 32px)); padding: .9rem 1.3rem; border-radius: 12px; background: var(--p2); border: 1px solid var(--borde); box-shadow: 0 20px 50px rgba(0, 0, 0, .5); color: #fff; font-size: .88rem; text-align: center; opacity: 0; pointer-events: none; transition: opacity .3s, transform .3s; }
  .toast.visible { opacity: 1; transform: translate(-50%, 0); }

  /* ====== Ventanas emergentes: vidrio esmerilado ====== */
  dialog { width: min(430px, calc(100% - 28px)); max-height: calc(100dvh - 28px); overflow-y: auto; padding: 0; color: #fff; border: 1px solid rgba(255, 255, 255, .28); border-radius: 28px;
    background: linear-gradient(155deg, rgba(131, 162, 220, .22), rgba(10, 19, 48, .52) 55%, rgba(10, 19, 48, .66));
    -webkit-backdrop-filter: blur(26px) saturate(1.5); backdrop-filter: blur(26px) saturate(1.5);
    box-shadow: 0 34px 90px rgba(0, 0, 0, .55), inset 0 1px 0 rgba(255, 255, 255, .38), inset 0 0 0 1px rgba(255, 255, 255, .04); scrollbar-width: thin; }
  dialog#dlgRegistro { width: min(580px, calc(100% - 28px)); }
  dialog::backdrop { background: radial-gradient(900px 520px at 25% 15%, rgba(131, 162, 220, .28), transparent 62%), radial-gradient(700px 480px at 85% 90%, rgba(204, 157, 71, .16), transparent 60%), rgba(5, 11, 31, .62); -webkit-backdrop-filter: blur(9px); backdrop-filter: blur(9px); }
  dialog .dlg { position: relative; padding: 2.1rem 2rem 1.7rem; border-radius: 28px;
    background: radial-gradient(240px 170px at 92% 0%, rgba(204, 157, 71, .22), transparent 70%), radial-gradient(280px 220px at 0% 100%, rgba(131, 162, 220, .26), transparent 70%); }
  dialog .dlg .cerrar { top: 14px; right: 14px; width: 38px; height: 38px; border: 1px solid rgba(255, 255, 255, .3); background: rgba(255, 255, 255, .08); transition: .2s; }
  dialog .dlg .cerrar:hover { background: rgba(255, 255, 255, .2); }
  dialog .dlg .cab { margin-bottom: .9rem; }
  dialog .dlg .cab img { width: 50px; }
  dialog .dlg .cab h3 { margin: .55rem 0 .3rem; font-size: .66rem; letter-spacing: .34em; color: var(--oro-claro); }
  dialog .dlg .cab p { font: 800 1.35rem/1.15 "Montserrat", sans-serif; letter-spacing: .14em; text-transform: uppercase; color: #fff; }

  dialog .campo { position: relative; margin-top: 1.35rem; }
  dialog .campo input, dialog .campo select { width: 100%; min-height: 50px; padding: 1.2rem 2.5rem .4rem 0; background: transparent; border: 0; border-bottom: 1px solid rgba(255, 255, 255, .55); border-radius: 0; box-shadow: none; color: #fff; font: 400 1rem "Public Sans", sans-serif; transition: border-color .2s, box-shadow .2s; }
  dialog .campo select { appearance: none; -webkit-appearance: none; cursor: pointer; }
  dialog .campo select option { color: #0A1330; }
  dialog .campo input:focus, dialog .campo select:focus { outline: none; border-bottom-color: var(--oro); box-shadow: 0 1px 0 var(--oro); }
  dialog .campo input:-webkit-autofill { -webkit-text-fill-color: #fff; -webkit-box-shadow: 0 0 0 60px rgba(10, 19, 48, .92) inset; caret-color: #fff; }
  dialog .campo label { position: absolute; left: 0; top: 1.05rem; margin: 0; font: 500 .98rem "Public Sans", sans-serif; letter-spacing: 0; text-transform: none; color: rgba(255, 255, 255, .78); pointer-events: none; transform-origin: left top; transition: transform .2s, color .2s; }
  dialog .campo input:focus + label, dialog .campo input:not(:placeholder-shown) + label, dialog .campo.sel label { transform: translateY(-.95rem) scale(.78); color: var(--oro-claro); }
  dialog .campo .ic, dialog .campo .ojo { position: absolute; right: 2px; bottom: .72rem; color: rgba(255, 255, 255, .85); font-size: 1.1rem; line-height: 1; }
  dialog .campo .ojo { padding: 4px; margin: -4px; border: 0; background: none; cursor: pointer; }
  dialog .campo .ojo:hover { color: var(--oro-claro); }
  dialog .campo.sel .ic { pointer-events: none; }
  dialog .dos { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1.4rem; }

  dialog .check { display: flex; align-items: flex-start; gap: .7rem; margin: 1.4rem 0 0; font: 400 .78rem/1.5 "Public Sans", sans-serif; letter-spacing: 0; text-transform: none; color: rgba(255, 255, 255, .82); cursor: pointer; }
  dialog .check input { width: 18px; min-height: 18px; height: 18px; flex-shrink: 0; margin-top: 2px; padding: 0; accent-color: #F0B429; }

  dialog .btn { width: 100%; min-height: 52px; margin-top: 1.5rem; justify-content: center; border-radius: 999px; }
  dialog .btn-oro { box-shadow: 0 14px 34px rgba(204, 157, 71, .3), inset 0 1px 0 rgba(255, 255, 255, .5); }
  dialog .btn-vidrio { background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .45); color: #fff; box-shadow: none; }
  dialog .btn-vidrio:hover { background: rgba(255, 255, 255, .2); }
  dialog .botones-dos { display: grid; grid-template-columns: 1fr 1.5fr; gap: .8rem; }
  dialog .enlace-btn { padding: 0; border: 0; background: none; font: inherit; font-weight: 700; color: var(--oro-claro); text-decoration: underline; text-underline-offset: 3px; cursor: pointer; }
  dialog .enlaces { justify-content: center; margin-top: 1rem; }
  dialog .enlaces .enlace-btn { font-weight: 500; font-size: .8rem; color: rgba(255, 255, 255, .8); }
  dialog .pie-dlg { margin: 1.3rem 0 0; text-align: center; font-size: .84rem; color: rgba(255, 255, 255, .82); }
  dialog .nota-fija { margin: .8rem 0 0; font-size: .8rem; color: rgba(255, 255, 255, .8); }
  dialog .paso-t { margin: .2rem 0 0; text-align: center; font: 600 .62rem "Montserrat", sans-serif; letter-spacing: .18em; text-transform: uppercase; color: rgba(255, 255, 255, .7); }
  dialog .pasos { display: flex; justify-content: center; gap: .45rem; margin: .5rem 0 .3rem; }
  dialog .pasos span { width: 38px; height: 4px; border-radius: 4px; background: rgba(255, 255, 255, .25); transition: background .3s; }
  dialog .pasos span.on { background: var(--oro); }
  dialog .dlg .nota { border-radius: 12px; }
  dialog .paso.oculto { display: none; }

  @media (max-width: 480px) {
    dialog .dlg { padding: 1.8rem 1.4rem 1.4rem; }
    dialog .dos { grid-template-columns: 1fr; }
    dialog .dlg .cab p { font-size: 1.15rem; }
    dialog .campo input, dialog .campo select { font-size: 16px; }
    dialog .botones-dos { grid-template-columns: 1fr; }
    dialog .botones-dos .btn-vidrio { order: 2; margin-top: .6rem; }
  }

  /* ====== Rendimiento: menos trabajo continuo para la tarjeta gráfica ====== */
  /* el zoom de la foto se hace una sola vez (antes iba y volvía sin parar) */
  .foto { animation: foto-entra 1.6s ease both, foto-aire 24s ease-out 1 forwards; will-change: transform; }
  .arco, .orbe, .escudo .aro, .sello-rot svg, .insignia svg { will-change: transform; }
  /* brillos que repintaban el logo en cada cuadro: ahora fijos */
  .orbe img { animation: none; filter: drop-shadow(0 0 22px rgba(255, 217, 120, .4)); }
  .escudo img { animation: escudo-flota 4.2s ease-in-out infinite; filter: brightness(1.25) drop-shadow(0 0 8px rgba(255, 217, 120, .45)); }
  /* desenfoques de fondo sobre una portada animada: se quitan (el fondo es un poco más sólido) */
  .grupo { backdrop-filter: none; -webkit-backdrop-filter: none; background: rgba(5, 11, 31, .78); }
  .texto-hero { backdrop-filter: none; -webkit-backdrop-filter: none; background: rgba(5, 11, 31, .72); }
  .btn-rect.borde { backdrop-filter: none; -webkit-backdrop-filter: none; background: rgba(5, 11, 31, .62); }
  @media (max-width: 960px) { header.cabecera { backdrop-filter: none; -webkit-backdrop-filter: none; background: rgba(5, 11, 31, .92); } }
  /* portada fuera de pantalla, o ventana abierta: todo en pausa */
  .portada.fuera, .portada.fuera *, .portada.fuera *::before, .portada.fuera *::after { animation-play-state: paused !important; }
  body:has(dialog[open]) > :not(dialog), body:has(dialog[open]) > :not(dialog) *, body:has(dialog[open]) > :not(dialog) *::before, body:has(dialog[open]) > :not(dialog) *::after { animation-play-state: paused !important; }
  /* ventanas: un solo desenfoque, más liviano, y aparición sin escalar */
  dialog { -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); }
  dialog::backdrop { -webkit-backdrop-filter: none; backdrop-filter: none; background: radial-gradient(900px 520px at 25% 15%, rgba(131, 162, 220, .22), transparent 62%), radial-gradient(700px 480px at 85% 90%, rgba(204, 157, 71, .12), transparent 60%), rgba(5, 11, 31, .8); }
  @keyframes aparece-dlg { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
  dialog[open] { animation: aparece-dlg .2s ease both; }