/* =========================================================
   Bull Training – inicio rediseñado
   Paleta alineada con bullservice.cl:
   azul #002D72 / #001F4F, amarillo #FFC107 (acción), verde #007A61 (WhatsApp, acceso),
   rojo #B22222 (emergencias), gris #6E6E6E, fondo claro #F4F6F9.
   ========================================================= */
.bt {
	--bt-azul: #002D72;
	--bt-azul-o: #001F4F;
	--bt-amarillo: #FFC107;
	--bt-amarillo-h: #E0A800;
	--bt-verde: #007A61;
	--bt-rojo: #B22222;
	--bt-gris: #6E6E6E;
	--bt-texto: #26364D;
	--bt-claro: #F4F6F9;
	--bt-borde: #E3E8F0;
	--bt-azul-texto: #C9D4E5;
	--bt-titulo: 'Montserrat', 'Segoe UI', Arial, sans-serif;
	--bt-cuerpo: 'Inter', -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
	font-family: var(--bt-cuerpo);
	font-size: 17px;
	line-height: 1.6;
	color: var(--bt-texto);
	-webkit-font-smoothing: antialiased;
}
.bt *, .bt *::before, .bt *::after { box-sizing: border-box; }
.bt img, .bt video { max-width: 100%; display: block; }
.bt a { color: var(--bt-azul); text-decoration: none; }
.bt p { margin: 0; }
.bt ul, .bt ol { margin: 0; padding: 0; list-style: none; }
.bt figure { margin: 0; }
.bt h1, .bt h2, .bt h3, .bt h4 { margin: 0; color: var(--bt-azul); text-wrap: balance; }
.bt .bt-t { font-family: var(--bt-titulo); }
.bt :focus-visible { outline: 3px solid var(--bt-amarillo); outline-offset: 2px; }
.bt-body { margin: 0; background: #fff; }
.bt-sr, .bt .bt-trampa { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.bt-wrap { max-width: 1200px; margin: 0 auto; padding-inline: 24px; }
.bt-wrap--angosto { max-width: 880px; }
.bt-pila { display: flex; flex-direction: column; gap: 16px; }
.bt-pila--xl { gap: 52px; }
.bt-dos { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(440px, 100%), 1fr)); gap: 48px; align-items: center; }
.bt-dos > * { min-width: 0; }
.bt-dos--arriba { align-items: stretch; }
.bt-centro { align-self: center; text-align: center; }
.bt-muted { color: var(--bt-gris); font-size: 14px; }
.bt-opc { color: var(--bt-gris); font-weight: 400; }
.bt-nota { padding: 16px; background: #fff7d6; border-radius: 8px; }

/* Secciones */
.bt-sec { padding-block: 88px; background: #fff; }
.bt-sec--gris { background: var(--bt-claro); }
.bt-sec--borde { padding-block: 56px; border-bottom: 1px solid var(--bt-borde); }
.bt-sec--azul { background: var(--bt-azul-o); color: var(--bt-azul-texto); }
.bt-sec--azul h2, .bt-sec--azul h3, .bt-sec--azul .bt-razones .bt-t { color: #fff; }
.bt h1.bt-t { font-size: clamp(32px, 4.2vw, 50px); line-height: 1.1; font-weight: 800; }
.bt h2.bt-t { font-size: clamp(26px, 2.8vw, 36px); line-height: 1.2; font-weight: 800; }
.bt-eti { font-family: var(--bt-titulo); font-size: 14px; font-weight: 600; color: var(--bt-gris); }
.bt-eti--y { color: var(--bt-amarillo); }

/* Botones */
.bt .bt-btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 50px; padding: 0 24px; border-radius: 6px; border: 2px solid transparent; font-family: var(--bt-titulo); font-weight: 700; font-size: 16px; line-height: 1.2; text-align: center; cursor: pointer; transition: background-color .15s ease; }
.bt .bt-btn--y { background: var(--bt-amarillo); color: var(--bt-azul); }
.bt .bt-btn--y:hover { background: var(--bt-amarillo-h); color: var(--bt-azul); }
.bt .bt-btn--n { background: var(--bt-azul); color: #fff; }
.bt .bt-btn--w { border-color: #fff; color: #fff; background: transparent; font-weight: 600; }
.bt .bt-btn--w:hover { background: rgba(255,255,255,.1); color: #fff; }
.bt .bt-btn--a { border-color: var(--bt-azul); color: var(--bt-azul); background: transparent; font-weight: 600; }
.bt .bt-btn--a:hover { background: rgba(0,45,114,.06); }
.bt .bt-btn--wa { background: var(--bt-verde); color: #fff; }
.bt .bt-btn--r { background: var(--bt-rojo); color: #fff; }
.bt .bt-btn--r:hover { background: #961c1c; color: #fff; }
.bt .bt-btn--sm { min-height: 42px; padding: 0 18px; font-size: 15px; }
.bt .bt-btn--lg { min-height: 54px; font-size: 17px; }
.bt .bt-btn--full { width: 100%; }
.bt .bt-btn[disabled] { opacity: .6; cursor: wait; }
.bt-botones { display: flex; flex-wrap: wrap; gap: 14px; }
.bt .bt-enlace { font-family: var(--bt-titulo); font-weight: 600; font-size: 14.5px; color: var(--bt-azul); border-bottom: 2px solid var(--bt-amarillo); padding-bottom: 1px; }

/* Barra superior y cabecera */
.bt-saltar { position: absolute; left: 12px; top: -60px; z-index: 100; background: var(--bt-amarillo); color: var(--bt-azul); padding: 10px 16px; border-radius: 6px; font-family: var(--bt-titulo); font-weight: 600; }
.bt-saltar:focus { top: 12px; }
.bt-topbar { background: #1A1A1A; color: #fff; font-size: 13.5px; }
.bt-topbar__fila { display: flex; flex-wrap: wrap; gap: 6px 28px; align-items: center; justify-content: space-between; padding-block: 8px; }
.bt-topbar__datos { display: flex; flex-wrap: wrap; gap: 6px 24px; }
.bt-topbar a { color: #fff; }
.bt-topbar .bt-topbar__aula { color: var(--bt-amarillo); font-weight: 600; }
.bt-header { position: sticky; top: 0; z-index: 50; background: var(--bt-azul-o); border-bottom: 2px solid var(--bt-amarillo); box-shadow: 0 8px 28px rgba(0,16,42,.28); }
.admin-bar .bt-header { top: 32px; }
.bt-header__fila { max-width: 1360px; display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 76px; }
.bt-header__logo { display: flex; align-items: center; }
.bt-header__logo img { height: 46px; width: auto; }
.bt-header__menu { display: none; width: 44px; height: 44px; border: 0; background: none; color: #fff; align-items: center; justify-content: center; cursor: pointer; border-radius: 8px; }
.bt-nav { display: flex; align-items: center; gap: 4px 26px; flex-wrap: wrap; font-family: var(--bt-titulo); font-weight: 600; font-size: 15px; }
.bt .bt-nav > a:not(.bt-btn) { color: #fff; }
.bt .bt-nav > a:not(.bt-btn):hover { color: var(--bt-amarillo); }
.bt-nav__ico { position: relative; display: inline-flex; width: 44px; height: 44px; align-items: center; justify-content: center; }
.bt-nav__n { position: absolute; top: 4px; right: 2px; min-width: 18px; height: 18px; border-radius: 9px; background: var(--bt-amarillo); color: var(--bt-azul); font-size: 11px; font-weight: 700; display: flex; align-items: center; justify-content: center; padding: 0 4px; }

/* Hero */
.bt-hero { position: relative; background: var(--bt-azul); overflow: hidden; min-height: 560px; display: flex; align-items: center; }
.bt-hero__video { position: absolute; inset: 0 0 0 auto; width: 68%; height: 100%; object-fit: cover; }
.bt-hero__velo { position: absolute; inset: 0; background: linear-gradient(90deg, #002D72 0%, #002D72 32%, rgba(0,45,114,.86) 50%, rgba(0,31,79,.45) 100%); }
.bt-hero__cont { position: relative; width: 100%; padding-block: 72px 80px; display: flex; flex-direction: column; gap: 20px; }
.bt-hero__cont > * { max-width: 660px; }
.bt-hero h1.bt-t { color: #fff; font-size: 44px; line-height: 1.12; }
.bt-hero__bajada { font-size: 17.5px; color: var(--bt-azul-texto); max-width: 54ch !important; }
.bt-hero__apoyo { margin: 0; font-size: 14.5px; color: var(--bt-amarillo); font-weight: 600; }

.bt-hero__selector { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; max-width: 660px !important; }
.bt-hero__card { background: rgba(255,255,255,.06); border: 1.5px solid rgba(255,255,255,.22); border-radius: 12px; padding: 18px 20px; display: flex; flex-direction: column; gap: 10px; }
.bt-hero__card p { margin: 0; font-size: 14.5px; color: #fff; line-height: 1.4; }
.bt-hero__card-eti { font-family: var(--bt-titulo); font-size: 13px; font-weight: 700; color: var(--bt-azul-texto); text-transform: uppercase; letter-spacing: .03em; }
.bt-hero__card-eti--y { color: var(--bt-amarillo); }
.bt-hero__card .bt-btn { align-self: flex-start; min-height: 46px; margin-top: 4px; }
.bt-pildora { align-self: flex-start; display: inline-flex; align-items: center; gap: 8px; background: rgba(255,193,7,.16); color: var(--bt-amarillo); font-family: var(--bt-titulo); font-size: 14px; font-weight: 700; padding: 6px 14px; border-radius: 999px; }
.bt-sellos { display: flex; flex-wrap: wrap; gap: 12px 26px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.16); }
.bt-sellos li { display: flex; gap: 8px; align-items: center; color: #fff; font-size: 14.5px; font-weight: 600; }
.bt-sellos .bt-ico { color: var(--bt-amarillo); }

/* Cómo funciona */
.bt-pasos { display: flex; flex-direction: column; gap: 18px; }
.bt-pasos li { display: flex; gap: 16px; align-items: flex-start; }
.bt-pasos .bt-t { font-size: 18px; font-weight: 700; color: var(--bt-azul); }
.bt-pasos p:not(.bt-t) { font-size: 15.5px; }
.bt-num { flex: 0 0 44px; height: 44px; border-radius: 10px; background: var(--bt-azul); color: #fff; display: flex; align-items: center; justify-content: center; font-family: var(--bt-titulo); font-size: 19px; font-weight: 800; }
.bt-num--y { background: var(--bt-amarillo); color: var(--bt-azul); }
.bt-video video { width: 100%; aspect-ratio: 16 / 9; border-radius: 14px; box-shadow: 0 16px 40px rgba(0,31,79,.22); background: var(--bt-azul); }

/* Catálogo */
.bt-cats { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 12px; }
.bt .bt-cat { display: flex; align-items: center; gap: 14px; min-height: 76px; padding: 14px 16px; border-radius: 12px; background: #fff; border: 1px solid var(--bt-borde); color: var(--bt-azul); }
.bt .bt-cat:hover { border-color: var(--bt-azul); }
.bt-cat__ico { flex: 0 0 44px; height: 44px; border-radius: 10px; background: #EEF2F8; color: var(--bt-azul); display: flex; align-items: center; justify-content: center; }
.bt-cat__ico--g { flex-basis: 56px; height: 56px; }
.bt-cat__nom { display: block; font-family: var(--bt-titulo); font-size: 15px; font-weight: 700; line-height: 1.25; }
.bt-cat__n { font-size: 13.5px; font-weight: 600; color: var(--bt-verde); }
.bt-cat--vacia .bt-cat__nom { color: var(--bt-texto); }
.bt-cat--vacia .bt-cat__n { color: var(--bt-gris); font-weight: 400; }
.bt-cat--vacia .bt-cat__ico { color: var(--bt-gris); }
.bt-cathead { display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; align-items: baseline; border-left: 4px solid var(--bt-azul); padding-left: 14px; }
.bt-cathead h3.bt-t { font-size: 22px; font-weight: 700; }
.bt-grid-cursos { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(320px, 100%), 1fr)); gap: 24px; }
.bt-card { background: #fff; border: 1px solid var(--bt-borde); border-radius: 12px; box-shadow: 0 4px 16px rgba(0,45,114,.08); }

.bt-grid-sellos { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 16px; }
.bt-sello { padding: 20px; display: flex; flex-direction: column; gap: 10px; }
.bt-sello__ico { width: 40px; height: 40px; border-radius: 10px; background: #EEF2F8; display: flex; align-items: center; justify-content: center; color: var(--bt-azul); }
.bt-sello p.bt-t { margin: 0; font-size: 15.5px; font-weight: 700; }
.bt-sello p.bt-muted { margin: 0; font-size: 13.5px; }
.bt-catalogo__cierre { text-align: center; margin: 8px 0 0; }
.bt-catalogo__cierre .bt-enlace { font-size: 16px; }
.bt-curso { display: flex; flex-direction: column; overflow: hidden; }
.bt-curso__img { position: relative; display: block; }
.bt-curso__img img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.bt-badge { position: absolute; top: 12px; left: 12px; display: inline-flex; align-items: center; gap: 6px; background: var(--bt-verde); color: #fff; font-family: var(--bt-titulo); font-size: 12px; font-weight: 700; padding: 5px 10px; border-radius: 999px; }
.bt-curso__cuerpo { padding: 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.bt-curso h4.bt-t { font-size: 18px; font-weight: 700; line-height: 1.3; }
.bt .bt-curso h4 a { color: var(--bt-azul); }
.bt-curso__precio { margin-top: auto; padding-top: 12px; border-top: 1px solid var(--bt-borde); display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.bt-curso__precio .bt-t { font-size: 24px; font-weight: 800; color: var(--bt-azul); }
.bt-curso__precio del { font-size: 15px; color: var(--bt-gris); font-weight: 500; }
.bt-curso__precio ins { text-decoration: none; }

/* Por qué */
.bt-mosaico { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); grid-template-rows: 190px 190px; gap: 12px; }
.bt-mosaico figure { position: relative; border-radius: 14px; overflow: hidden; }
.bt-mosaico__g { grid-row: span 2; }
.bt-mosaico img { width: 100%; height: 100%; object-fit: cover; }
.bt-mosaico figcaption { position: absolute; left: 12px; bottom: 12px; background: rgba(0,31,79,.85); color: #fff; font-size: 13px; font-weight: 600; padding: 4px 10px; border-radius: 6px; }
.bt-razones { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 28px; padding-top: 32px; border-top: 1px solid rgba(255,255,255,.12); }
.bt-razones li { display: flex; gap: 14px; }
.bt-razones .bt-ico { flex: 0 0 28px; color: var(--bt-amarillo); }
.bt-razones .bt-t { font-size: 17px; font-weight: 700; }
.bt-razones p:not(.bt-t) { font-size: 15px; line-height: 1.5; margin-top: 4px; }

/* Empresas */
.bt-redondeada { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 14px; }
.bt-lista-check { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px 20px; font-size: 16px; }
.bt-lista-check li { display: flex; gap: 10px; align-items: flex-start; }
.bt-lista-check .bt-ico { flex: 0 0 20px; margin-top: 3px; color: var(--bt-verde); }

/* Formulario */
.bt-form { padding: 28px; display: flex; flex-direction: column; gap: 16px; }
.bt-form__cab { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.bt-form__cab h3.bt-t { font-size: 22px; font-weight: 700; }
.bt-fld { display: flex; flex-direction: column; gap: 6px; font-size: 14px; font-weight: 600; color: var(--bt-texto); }
.bt .bt-inp { font-family: var(--bt-cuerpo); font-size: 16px; color: var(--bt-texto); border: 1.5px solid #9AA6B8; border-radius: 6px; min-height: 48px; padding: 10px 14px; background: #fff; width: 100%; }
.bt textarea.bt-inp { min-height: 96px; resize: vertical; }
.bt .bt-inp[aria-invalid="true"] { border-color: var(--bt-rojo); }
.bt-aviso { font-size: 13px; font-weight: 400; color: var(--bt-gris); }
.bt-chips { border: 0; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.bt-chips legend { font-size: 14px; font-weight: 600; margin-bottom: 8px; padding: 0; width: 100%; }
.bt-chip { position: relative; cursor: pointer; }
.bt-chip input { position: absolute; opacity: 0; pointer-events: none; }
.bt-chip span { display: inline-flex; align-items: center; min-height: 44px; padding: 0 16px; border: 1.5px solid #C9D4E5; border-radius: 999px; font-size: 15px; font-weight: 500; background: #fff; }
.bt-chip input:checked + span { background: var(--bt-azul); border-color: var(--bt-azul); color: #fff; font-weight: 600; }
.bt-chip input:focus-visible + span { outline: 3px solid var(--bt-amarillo); outline-offset: 2px; }
.bt-check { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; }
.bt-check input { width: 20px; height: 20px; margin-top: 1px; accent-color: var(--bt-azul); flex: 0 0 auto; }
.bt-check--error { color: var(--bt-rojo); }
.bt-estado { font-size: 14.5px; min-height: 1em; }
.bt-estado[data-tipo="ok"] { color: var(--bt-verde); font-weight: 600; }
.bt-estado[data-tipo="error"] { color: var(--bt-rojo); font-weight: 600; }

/* Sala */
.bt-sala { display: flex; flex-wrap: wrap; gap: 28px; align-items: center; justify-content: space-between; }
.bt-sala__txt { display: flex; gap: 20px; align-items: center; flex: 1 1 560px; min-width: 0; }
.bt-sala h2.bt-t { font-size: 24px; font-weight: 700; }
.bt-sala p { margin-top: 4px; font-size: 15.5px; }

/* FAQ */
.bt-faq { display: flex; flex-direction: column; gap: 10px; }
.bt-faq details { padding: 0 24px; box-shadow: none; }
.bt-faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; gap: 16px; align-items: center; min-height: 64px; font-size: 17px; font-weight: 600; color: var(--bt-azul); }
.bt-faq summary::-webkit-details-marker { display: none; }
.bt-faq summary span::before { content: '+'; font-size: 24px; }
.bt-faq details[open] summary span::before { content: '−'; }
.bt-faq details p { padding-bottom: 20px; font-size: 16px; }

/* Pie */
.bt-pie { background: var(--bt-azul); color: var(--bt-azul-texto); font-size: 14.5px; }
.bt-pie .bt-wrap { padding-block: 64px 28px; }
.bt-pie__cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 32px; }
.bt-pie__cols > div { display: flex; flex-direction: column; gap: 10px; }
.bt-pie__cols img { height: 52px; width: auto; align-self: flex-start; }
.bt-pie__tit { font-family: var(--bt-titulo); font-weight: 600; font-size: 15px; color: #fff; }
.bt-pie a { color: var(--bt-azul-texto); }
.bt-pie a:hover { color: var(--bt-amarillo); }
.bt-pie .bt-pie__aula { color: var(--bt-amarillo); font-weight: 600; }
.bt-pie__legal { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 40px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.12); font-size: 13.5px; }

/* WhatsApp y barra móvil */
.bt-wa { position: fixed; right: 20px; bottom: 20px; z-index: 60; display: flex; width: 60px; height: 60px; border-radius: 50%; background: #007A61; border: 2px solid #fff; color: #fff !important; align-items: center; justify-content: center; box-shadow: 0 8px 24px rgba(0,45,114,.3); }
.bt-barra-movil { display: none; }

/* ---------- Móvil ---------- */
@media (max-width: 900px) {
	.bt-header__menu { display: inline-flex; }
	.bt-header__fila { min-height: 64px; }
	.bt-header__logo img { height: 38px; }
	.bt-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; padding: 8px 16px 20px; background: var(--bt-azul-o); border-bottom: 2px solid var(--bt-amarillo); }
	.bt-nav.bt-nav--abierto { display: flex; }
	.bt .bt-nav > a:not(.bt-btn) { padding: 14px 4px; border-bottom: 1px solid rgba(255,255,255,.1); }
	.bt-nav__ico { width: auto; justify-content: flex-start; }
	.bt-nav .bt-btn { margin-top: 12px; }
	.bt-topbar { display: none; }
}
@media (max-width: 760px) {
	.bt-wrap { padding-inline: 16px; }
	.bt-sec { padding-block: 48px; }
	.bt-hero { min-height: 0; }
	.bt-hero__video { width: 100%; }
	.bt-hero__velo { background: linear-gradient(180deg, rgba(0,31,79,.55) 0%, rgba(0,45,114,.9) 45%, #002D72 100%); }
	.bt-hero__cont { padding-block: 120px 32px; }
	.bt-botones .bt-btn { width: 100%; }
	.bt-hero__selector { grid-template-columns: 1fr; }
	.bt-hero__card .bt-btn { width: 100%; }
	.bt-sellos { display: grid; grid-template-columns: 1fr; gap: 10px; }
	.bt-cats { display: flex; overflow-x: auto; gap: 8px; padding-bottom: 6px; margin-inline: -16px; padding-inline: 16px; scroll-snap-type: x mandatory; }
	.bt .bt-cat { flex: 0 0 240px; scroll-snap-align: start; }
	.bt-mosaico { grid-template-rows: 150px 110px; }
	.bt-mosaico__g { grid-row: auto; grid-column: span 2; }
	.bt-form { padding: 18px; }
	.bt-wa { display: none; }
	.bt-barra-movil { position: fixed; left: 0; right: 0; bottom: 0; z-index: 60; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; padding: 8px 12px calc(8px + env(safe-area-inset-bottom, 0px)); background: #fff; border-top: 1px solid var(--bt-borde); box-shadow: 0 -6px 18px rgba(0,45,114,.12); }
	.bt-barra-movil.bt-oculta { display: none; }
	.bt-pie .bt-wrap { padding-bottom: 100px; }
}
@media (prefers-reduced-motion: reduce) {
	.bt * { transition: none !important; scroll-behavior: auto !important; }
}

/* Categorías con un solo curso: se agrupan en columnas */
.bt-grid-mixto { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(320px, 100%), 1fr)); gap: 40px 24px; }
.bt-grid-mixto > .bt-pila { min-width: 0; }
.bt-grid-mixto .bt-cathead h3.bt-t { font-size: 18px; }
.bt-grid-mixto .bt-curso { flex: 1; }
.bt-fld__txt { display: block; }