/* Jost (SIL Open Font License 1.1), alojada en el propio sitio. CSP: solo recursos propios, sin estilos en línea. */
@font-face { font-family: 'Jost'; font-weight: 300; font-display: swap; src: url('fuentes/Jost-300-normal-latin.woff2') format('woff2'); }
@font-face { font-family: 'Jost'; font-weight: 400; font-display: swap; src: url('fuentes/Jost-400-normal-latin.woff2') format('woff2'); }
@font-face { font-family: 'Jost'; font-weight: 500; font-display: swap; src: url('fuentes/Jost-500-normal-latin.woff2') format('woff2'); }
@font-face { font-family: 'Jost'; font-weight: 300; font-display: swap; src: url('fuentes/Jost-300-normal-latin-ext.woff2') format('woff2'); unicode-range: U+0100-024F, U+1E00-1EFF; }
@font-face { font-family: 'Jost'; font-weight: 400; font-display: swap; src: url('fuentes/Jost-400-normal-latin-ext.woff2') format('woff2'); unicode-range: U+0100-024F, U+1E00-1EFF; }
@font-face { font-family: 'Jost'; font-weight: 500; font-display: swap; src: url('fuentes/Jost-500-normal-latin-ext.woff2') format('woff2'); unicode-range: U+0100-024F, U+1E00-1EFF; }

:root {
  --azul: #1E3A8A;
  --azul-osc: #0F1E4D;
  --oro: #D9AE5C;
  --oro-osc: #8A6420;
  --verde: #3F7D4E;
  --fondo: #FBFBF8;
  --suave: #F2F4F9;
  --tarjeta: #FFFFFF;
  --texto: #14182B;
  --sec: #525a72;
  --borde: #E1E5EF;
  --sombra: 0 1px 2px rgba(20, 24, 43, .05), 0 8px 24px rgba(20, 24, 43, .06);
}
@media (prefers-color-scheme: dark) {
  :root {
    --fondo: #0B0F1C;
    --suave: #121829;
    --tarjeta: #161D31;
    --texto: #EEF1F8;
    --sec: #A6AEC5;
    --borde: #262E48;
    --verde: #7DBE8C;
    --oro-osc: #E6C27E;
    --sombra: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--fondo); color: var(--texto); font: 400 17px/1.6 'Jost', system-ui, sans-serif; }
img, svg { max-width: 100%; }
a { color: inherit; }
a:focus-visible, summary:focus-visible { outline: 3px solid var(--oro); outline-offset: 3px; border-radius: 4px; }
.envoltura { max-width: 1160px; margin: 0 auto; padding: 0 20px; }
.saltar { position: absolute; left: -999px; }
.saltar:focus { left: 16px; top: 16px; background: var(--oro); color: #1b1505; padding: 8px 12px; z-index: 30; }

/* Cabecera */
header.barra { position: sticky; top: 0; z-index: 20; background: var(--fondo); border-bottom: 1px solid var(--borde); }
header.barra .envoltura { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 68px; }
.logo { display: flex; align-items: center; gap: 12px; text-decoration: none; font-weight: 500; letter-spacing: .01em; line-height: 1.2; }
.logo .sello { flex: none; width: 36px; height: 36px; }
.logo small { display: block; font-weight: 300; font-size: 12px; color: var(--sec); letter-spacing: .08em; text-transform: uppercase; }
nav.menu { display: flex; gap: 22px; font-size: 15px; align-items: center; }
nav.menu a { text-decoration: none; color: var(--sec); }
nav.menu a:hover, nav.menu a[aria-current="page"] { color: var(--texto); }
nav.menu a.cta { color: #1b1505; background: var(--oro); padding: 8px 14px; border-radius: 6px; font-weight: 500; }
details.movil { display: none; position: relative; }
details.movil summary { list-style: none; cursor: pointer; padding: 8px 12px; border: 1px solid var(--borde); border-radius: 6px; font-size: 15px; }
details.movil summary::-webkit-details-marker { display: none; }
details.movil nav { position: absolute; right: 0; top: 48px; width: min(280px, calc(100vw - 32px)); background: var(--tarjeta); border: 1px solid var(--borde); border-radius: 10px; box-shadow: var(--sombra); padding: 8px; display: flex; flex-direction: column; }
details.movil nav a { padding: 10px 12px; text-decoration: none; border-radius: 6px; }
details.movil nav a:hover { background: var(--suave); }
@media (max-width: 900px) { nav.menu { display: none; } details.movil { display: block; } }

/* Portada */
.portada { background: radial-gradient(circle at 85% 20%, #2a4bb0 0%, var(--azul) 40%, var(--azul-osc) 100%); color: #fff; padding: 80px 0 88px; overflow: hidden; }
.portada .envoltura { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.portada .etiqueta { color: var(--oro); text-transform: uppercase; letter-spacing: .14em; font-size: 13px; font-weight: 500; }
.portada h1 { font-weight: 400; font-size: clamp(34px, 5.6vw, 58px); line-height: 1.08; margin: 14px 0 20px; }
.portada h1 em { font-style: normal; color: var(--oro); }
.portada p { font-weight: 300; font-size: 19px; max-width: 56ch; color: #dfe5f5; margin: 0; }
.portada .ilustracion { width: 100%; height: auto; }
@media (max-width: 860px) { .portada .envoltura { grid-template-columns: 1fr; } .portada .ilustracion { max-width: 420px; justify-self: center; } }
.portada.pequena { padding: 64px 0 56px; }
.portada.pequena .envoltura { display: block; }
.portada.pequena h1 { max-width: 22ch; }

.acciones { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 32px; }
.boton { display: inline-block; text-decoration: none; padding: 12px 22px; border-radius: 6px; font-weight: 500; font-size: 16px; border: 1px solid transparent; }
.boton.oro { background: var(--oro); color: #1b1505; }
.boton.oro:hover { background: #e6c27e; }
.boton.linea { border-color: rgba(255,255,255,.5); color: #fff; }
.boton.linea:hover { background: rgba(255,255,255,.08); }
.boton.azul { background: var(--azul); color: #fff; }
.boton.borde { border-color: var(--borde); color: var(--texto); background: var(--tarjeta); }

/* Franja de pilares */
.pilares { border-bottom: 1px solid var(--borde); background: var(--tarjeta); }
.pilares .envoltura { display: grid; grid-template-columns: repeat(4, 1fr); }
.pilares .envoltura > div { padding: 24px 20px; border-left: 1px solid var(--borde); }
.pilares .envoltura > div:first-child { border-left: none; padding-left: 0; }
.pilares strong { display: block; font-weight: 500; font-size: 18px; }
.pilares span { color: var(--sec); font-size: 15px; }
@media (max-width: 860px) { .pilares .envoltura { grid-template-columns: 1fr 1fr; } .pilares .envoltura > div { border-left: none; border-top: 1px solid var(--borde); padding-left: 0; } .pilares .envoltura > div:nth-child(-n+2) { border-top: none; } }
@media (max-width: 480px) { .pilares .envoltura { grid-template-columns: 1fr; } .pilares .envoltura > div:nth-child(2) { border-top: 1px solid var(--borde); } }

/* Bloques */
section.bloque { padding: 80px 0; }
section.bloque.suave { background: var(--suave); }
section.bloque.oscuro { background: var(--azul-osc); color: #eef1f8; }
section.bloque.oscuro .entrada, section.bloque.oscuro p { color: #c4cce3; }
.antetitulo { color: var(--oro-osc); text-transform: uppercase; letter-spacing: .14em; font-size: 13px; font-weight: 500; margin: 0 0 10px; }
section.oscuro .antetitulo { color: var(--oro); }
.titulo-bloque { font-weight: 400; font-size: clamp(28px, 4vw, 40px); margin: 0 0 14px; line-height: 1.15; max-width: 26ch; }
p.entrada { color: var(--sec); max-width: 64ch; margin: 0 0 40px; font-size: 18px; }
.raya { width: 48px; height: 3px; background: var(--oro); margin-bottom: 18px; }

.rejilla { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; }
.rejilla.tres { grid-template-columns: repeat(3, 1fr); }
.rejilla.apilada { grid-template-columns: 1fr; gap: 14px; }
.rejilla.apilada .tarjeta { display: grid; grid-template-columns: 44px 1fr; column-gap: 18px; padding: 22px; }
.rejilla.apilada .icono { grid-row: span 2; margin: 0; }
@media (max-width: 860px) { .rejilla.tres { grid-template-columns: 1fr; } }
.tarjeta { background: var(--tarjeta); border: 1px solid var(--borde); border-radius: 12px; padding: 28px; box-shadow: var(--sombra); }
.tarjeta h3 { margin: 0 0 8px; font-weight: 500; font-size: 20px; }
.tarjeta p { margin: 0; color: var(--sec); font-size: 16px; }
.tarjeta ul { margin: 14px 0 0; padding-left: 18px; color: var(--sec); font-size: 15px; }
.tarjeta ul li { margin: 4px 0; }
.tarjeta .mas { display: inline-block; margin-top: 16px; font-weight: 500; color: var(--azul); text-decoration: none; }
@media (prefers-color-scheme: dark) { .tarjeta .mas { color: var(--oro); } }
section.oscuro .tarjeta { background: rgba(255,255,255,.04); border-color: rgba(255,255,255,.12); box-shadow: none; }
section.oscuro .tarjeta h3 { color: #fff; }
.icono { width: 44px; height: 44px; border-radius: 10px; display: grid; place-items: center; background: var(--azul); color: var(--oro); margin-bottom: 16px; }
.icono svg { width: 24px; height: 24px; }
.icono.verde { background: var(--verde); color: #fff; }

.dos { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.dos.arriba { align-items: start; }
@media (max-width: 860px) { .dos { grid-template-columns: 1fr; gap: 32px; } }

/* Pasos */
ol.pasos { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: paso; }
ol.pasos li { counter-increment: paso; background: var(--tarjeta); border: 1px solid var(--borde); border-top: 4px solid var(--oro); border-radius: 12px; padding: 24px; }
ol.pasos li::before { content: counter(paso); display: block; font-size: 36px; font-weight: 300; color: var(--oro-osc); line-height: 1; margin-bottom: 12px; }
ol.pasos strong { display: block; font-weight: 500; font-size: 18px; margin-bottom: 6px; }
ol.pasos span { color: var(--sec); font-size: 15px; }
@media (max-width: 860px) { ol.pasos { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { ol.pasos { grid-template-columns: 1fr; } }

ul.lista { padding: 0; margin: 0; list-style: none; }
ul.lista li { padding: 14px 0 14px 30px; border-bottom: 1px solid var(--borde); position: relative; }
ul.lista li:last-child { border-bottom: none; }
ul.lista li::before { content: ''; position: absolute; left: 4px; top: 24px; width: 10px; height: 10px; border-radius: 50%; background: var(--oro); }
section.oscuro ul.lista li { border-color: rgba(255,255,255,.12); }

.marca-phx { display: inline-flex; flex-direction: column; align-items: center; justify-content: center; width: 132px; height: 132px; border-radius: 26px; background: var(--azul); color: #fff; font-weight: 500; font-size: 40px; letter-spacing: .04em; }
.marca-phx::after { content: ''; width: 40px; height: 4px; background: var(--oro); margin-top: 8px; }

.aviso { border-left: 3px solid var(--oro); background: var(--suave); padding: 18px 22px; border-radius: 0 8px 8px 0; color: var(--sec); font-size: 15px; }
section.suave .aviso { background: var(--tarjeta); }

/* Tablas */
.tabla { width: 100%; border-collapse: collapse; background: var(--tarjeta); border: 1px solid var(--borde); border-radius: 12px; overflow: hidden; font-size: 16px; }
.tabla th, .tabla td { text-align: left; padding: 14px 16px; border-bottom: 1px solid var(--borde); vertical-align: top; }
.tabla th { font-weight: 500; background: var(--suave); }
.tabla td { color: var(--sec); }
.tabla td:first-child { color: var(--texto); font-weight: 500; }
.desliza { overflow-x: auto; }

/* Código */
pre.codigo { background: #0B1022; color: #DDE3F5; border-radius: 12px; padding: 20px; overflow-x: auto; font: 14px/1.6 ui-monospace, 'SFMono-Regular', Menlo, monospace; margin: 0; border: 1px solid #1e2742; }
pre.codigo .c { color: #8792b5; }
pre.codigo .k { color: #E6C27E; }

/* Preguntas */
.preguntas details { border-bottom: 1px solid var(--borde); padding: 4px 0; }
.preguntas summary { cursor: pointer; padding: 16px 32px 16px 0; font-weight: 500; font-size: 18px; position: relative; list-style: none; }
.preguntas summary::-webkit-details-marker { display: none; }
.preguntas summary::after { content: '+'; position: absolute; right: 4px; top: 12px; font-size: 24px; font-weight: 300; color: var(--oro-osc); }
.preguntas details[open] summary::after { content: '−'; }
.preguntas details p { margin: 0 0 18px; color: var(--sec); max-width: 70ch; }

/* Banda final */
.banda { background: linear-gradient(120deg, var(--azul) 0%, var(--azul-osc) 100%); color: #fff; border-radius: 16px; padding: 48px; display: flex; justify-content: space-between; align-items: center; gap: 32px; flex-wrap: wrap; }
.banda h2 { font-weight: 400; font-size: clamp(26px, 3.4vw, 34px); margin: 0 0 8px; line-height: 1.2; }
.banda p { margin: 0; color: #dfe5f5; max-width: 52ch; }
@media (max-width: 480px) { .banda { padding: 32px 24px; } }

/* Legal */
.legal { padding: 56px 0 72px; max-width: 760px; }
.legal h1 { font-weight: 400; font-size: 34px; margin: 0 0 4px; }
.legal h2 { font-weight: 500; font-size: 20px; margin: 32px 0 8px; }
.legal p, .legal li { color: var(--sec); }
.legal table { border-collapse: collapse; width: 100%; margin: 12px 0; }
.legal th, .legal td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--borde); vertical-align: top; font-size: 16px; }
.legal th { width: 38%; font-weight: 500; color: var(--texto); }
.fecha { color: var(--sec); font-size: 14px; }

/* Pie */
footer.pie { border-top: 1px solid var(--borde); padding: 56px 0 32px; font-size: 15px; color: var(--sec); background: var(--fondo); }
footer.pie .columnas { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
footer.pie h4 { margin: 0 0 12px; font-weight: 500; color: var(--texto); font-size: 15px; }
footer.pie ul { list-style: none; margin: 0; padding: 0; }
footer.pie li { margin: 6px 0; }
footer.pie a { color: var(--sec); text-decoration: none; }
footer.pie a:hover { color: var(--texto); text-decoration: underline; }
footer.pie .final { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--borde); font-size: 13px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
@media (max-width: 760px) { footer.pie .columnas { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { footer.pie .columnas { grid-template-columns: 1fr; } }

.con-margen { margin-top: 24px; }
.secundario { color: var(--sec); }
.centro { text-align: center; }
.mt { margin-top: 40px; }