/* [EXPERIENCIA SIMPLE] Aviso, «Lo nuevo» y línea de tiempo de novedades, «?» de pantalla, glosario, recorridos y
 * «Aprende Brainmore». Sólo tokens existentes (index.html; en el panel caen a los suyos), así el
 * modo oscuro llega solo. Guía: docs/diseno/GUIA_PREMIUM.md.  Marca buscable: experiencia_css */

.bmx-aviso, .bmx-modal, .bmx-hoja, .bmx-centro, .bmx-tour-globo, .bmx-tip, .bmx-guia, .bmx-ayuda-btn {
  --bmx-card: var(--card, var(--papel, #fff));
  --bmx-tinta: var(--text, var(--tinta, #1a1a1a));
  --bmx-suave: var(--text-mute, var(--gris, #636a75));
  --bmx-linea: var(--border, var(--linea, #e5e5e5));
  --bmx-acento: var(--bm-accent, var(--granate, #7a2c36));
  --bmx-acento-suave: var(--primary-soft, rgba(122, 44, 54, .08));
  --bmx-elevada: var(--surface-elevated, var(--bmx-card));
  --bmx-sombra: var(--shadow-soft, 0 18px 48px rgba(15, 23, 42, .12));
  --bmx-holo-a: var(--bxe-a, #2563EB);
  --bmx-holo-b: var(--bxe-b, #7C3AED);
  font-family: var(--bm-font, 'Inter', -apple-system, BlinkMacSystemFont, sans-serif);
  box-sizing: border-box;
}
.bmx-aviso *, .bmx-modal *, .bmx-hoja *, .bmx-centro *, .bmx-tour-globo * { box-sizing: border-box; }

/* ── botones comunes ─────────────────────────────────────────────────────────────── */
.bmx-boton {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 0 18px; border-radius: 10px; border: 0; cursor: pointer;
  background: var(--bmx-acento); color: #fff; font: inherit; font-size: 14px; font-weight: 600;
  transition: transform .15s ease, box-shadow .15s ease;
}
.bmx-boton svg { width: 16px; height: 16px; }
.bmx-boton:hover { box-shadow: 0 6px 18px -8px var(--bmx-acento); }
.bmx-boton:active { transform: translateY(1px); }
.bmx-boton:focus-visible, .bmx-enlace:focus-visible, .bmx-x:focus-visible, .bmx-ayuda-btn:focus-visible,
.bmx-tab:focus-visible, .bmx-ejemplo:focus-visible, .bmx-fila:focus-visible, .bmx-video:focus-visible {
  outline: 2px solid var(--bmx-acento); outline-offset: 2px;
}
.bmx-boton-ancho { width: 100%; margin-top: 18px; }
.bmx-enlace {
  background: none; border: 0; padding: 6px 2px; min-height: 36px; cursor: pointer;
  color: var(--bmx-acento); font: inherit; font-size: 14px; font-weight: 600;
}
.bmx-enlace:hover { text-decoration: underline; }
.bmx-enlace-suave { color: var(--bmx-suave); font-weight: 500; }
.bmx-x {
  flex: none; width: 36px; height: 36px; border-radius: 50%; border: 0; cursor: pointer;
  background: transparent; color: var(--bmx-suave); font-size: 22px; line-height: 1;
}
.bmx-x:hover { background: var(--bmx-acento-suave); color: var(--bmx-tinta); }
.bmx-chip {
  display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 11.5px; font-weight: 600;
  letter-spacing: .02em; background: var(--bmx-acento-suave); color: var(--bmx-acento);
}
.bmx-eyebrow { margin: 0 0 2px; font-size: 12px; font-weight: 600; letter-spacing: .06em;
  text-transform: uppercase; color: var(--bmx-suave); }
.bmx-modal-sub { margin: 4px 0 0; font-size: 14px; color: var(--bmx-suave); }

/* ── aviso «Hay algo nuevo» (una vez por versión) ─────────────────────────────────── */
.bmx-aviso {
  position: fixed; right: 24px; bottom: 24px; z-index: 1100; display: flex; align-items: center; gap: 12px;
  width: min(420px, calc(100vw - 32px)); padding: 12px 8px 12px 14px; border-radius: 16px;
  border: 1px solid var(--bmx-linea); background: var(--bmx-card); color: var(--bmx-tinta);
  box-shadow: 0 22px 48px -20px rgba(15, 23, 42, .38), 0 2px 6px rgba(15, 23, 42, .06);
  opacity: 0; transform: translateY(12px); transition: opacity .32s ease, transform .32s cubic-bezier(.2, .7, .2, 1);
}
.bmx-aviso.is-in { opacity: 1; transform: none; }
.bmx-aviso.is-out { opacity: 0; transform: translateY(12px); }
.bmx-aviso-orbe {
  flex: none; width: 34px; height: 34px; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, rgba(255, 255, 255, .85) 0%, var(--bmx-holo-a) 32%, var(--bmx-holo-b) 74%, var(--bmx-acento) 100%);
  box-shadow: 0 0 18px -4px var(--bmx-holo-a); animation: bmx-respira 5s ease-in-out infinite;
}
.bmx-aviso-tx {
  flex: 1; min-width: 0; display: flex; flex-direction: column; align-items: flex-start; gap: 2px;
  background: none; border: 0; padding: 0; text-align: left; cursor: pointer; font: inherit; color: inherit;
}
.bmx-aviso-ceja { font-size: 11.5px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--bmx-acento); }
.bmx-aviso-h {
  font-size: 14.5px; font-weight: 600; line-height: 1.35; overflow: hidden;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
}
.bmx-aviso-ver {
  flex: none; min-height: 36px; padding: 0 14px; border-radius: 10px; border: 1px solid var(--bmx-linea);
  background: transparent; color: var(--bmx-acento); font: inherit; font-size: 14px; font-weight: 600; cursor: pointer;
}
.bmx-aviso-ver:hover { background: var(--bmx-acento-suave); border-color: transparent; }
.bmx-aviso-tx:focus-visible, .bmx-aviso-ver:focus-visible, .bmx-nv-link:focus-visible, .bmx-nv-probar:focus-visible {
  outline: 2px solid var(--bmx-acento); outline-offset: 2px;
}
.bmx-tab-punto { display: inline-block; width: 7px; height: 7px; margin-left: 7px; border-radius: 50%;
  background: var(--bmx-acento); vertical-align: 2px; }

/* ── Novedades: «Lo nuevo» + línea de tiempo ──────────────────────────────────────── */
.bmx-nv { max-width: 880px; margin: 0 auto; display: grid; gap: 26px; }
.bmx-nv-hero {
  position: relative; overflow: hidden; display: grid; grid-template-columns: minmax(0, 1fr) 200px; gap: 8px 28px;
  padding: 32px 32px 28px; border-radius: 20px; border: 1px solid var(--bmx-linea);
  background: radial-gradient(80% 120% at 100% 0%, var(--bmx-acento-suave) 0%, transparent 62%), var(--bmx-card);
  box-shadow: 0 1px 2px rgba(15, 23, 42, .04), 0 28px 56px -36px rgba(15, 23, 42, .32);
  animation: bmx-subir .4s cubic-bezier(.2, .7, .2, 1) both;
}
.bmx-nv-hero-tx { min-width: 0; align-self: center; }
.bmx-nv-ceja {
  display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin: 0 0 14px; font-size: 12.5px; font-weight: 600;
  letter-spacing: .06em; text-transform: uppercase; color: var(--bmx-acento);
}
.bmx-nv-ceja-sep { color: var(--bmx-suave); }
.bmx-nv-pulso { width: 8px; height: 8px; border-radius: 50%; background: var(--bmx-acento); animation: bmx-pulso 2.4s ease-out infinite; }
.bmx-nv-hero-h { margin: 0 0 10px; font-size: 30px; line-height: 1.15; font-weight: 700; letter-spacing: -.02em; text-wrap: balance; }
.bmx-nv-hero-p { margin: 0; max-width: 54ch; font-size: 16px; line-height: 1.6; color: var(--bmx-suave); }
.bmx-nv-acciones { display: flex; align-items: center; flex-wrap: wrap; gap: 6px 16px; }
.bmx-nv-acciones.is-principal { margin-top: 22px; }
.bmx-nv-probar { text-decoration: none; min-height: 46px; padding: 0 20px; font-size: 15px; }
.bmx-nv-flecha { display: inline-flex; }
.bmx-nv-flecha svg { width: 16px; height: 16px; display: block; transition: transform .2s ease; }
.bmx-nv-probar:hover .bmx-nv-flecha svg, .bmx-nv-link:hover .bmx-nv-flecha svg { transform: translateX(3px); }
.bmx-nv-hero-mas { grid-column: 1 / -1; margin-top: 14px; padding-top: 16px; border-top: 1px solid var(--bmx-linea); }
.bmx-nv-sub, .bmx-nv-sec {
  margin: 0 0 4px; font-size: 12.5px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--bmx-suave);
}
.bmx-nv-sec { margin: 6px 0 -12px; }

/*  El núcleo de Brainmore, en calma: la misma esfera azul-violeta del experto, sólo CSS. */
.bmx-nv-orbe { position: relative; width: 200px; height: 200px; align-self: center; justify-self: center; color: #fff; }
.bmx-nv-halo {
  position: absolute; inset: 10%; border-radius: 50%; opacity: .5; filter: blur(14px);
  background: radial-gradient(circle, var(--bmx-holo-a) 0%, transparent 68%); animation: bmx-respira 6s ease-in-out infinite;
}
.bmx-nv-orbitas {
  position: absolute; inset: 0; width: 100%; height: 100%; fill: none; stroke: var(--bmx-holo-a);
  stroke-opacity: .38; stroke-width: 1; stroke-dasharray: 2 6; animation: bmx-gira 48s linear infinite;
}
.bmx-nv-esfera {
  position: absolute; inset: 31%; border-radius: 50%;
  background: radial-gradient(circle at 34% 28%, rgba(255, 255, 255, .9) 0%, var(--bmx-holo-a) 30%, var(--bmx-holo-b) 72%, var(--bmx-acento) 100%);
  box-shadow: 0 0 44px -6px var(--bmx-holo-a), inset -8px -10px 24px rgba(0, 0, 0, .22);
  animation: bmx-respira 6s ease-in-out infinite;
}
.bmx-nv-orbe-ic { position: absolute; inset: 0; display: grid; place-items: center; }
.bmx-nv-orbe-ic svg { width: 26px; height: 26px; filter: drop-shadow(0 1px 2px rgba(0, 0, 0, .3)); }
.bmx-nv-orbe-mejora { --bmx-holo-a: var(--bxe-ok-a, #0EA5A4); --bmx-holo-b: var(--bxe-ok-b, #2563EB); }
.bmx-nv-orbe-correccion { --bmx-holo-a: var(--bxe-valida, #059669); --bmx-holo-b: var(--bxe-ok-a, #0EA5A4); }

.bmx-nv-linea { list-style: none; margin: 0; padding: 0 0 0 28px; position: relative; display: grid; gap: 14px; }
.bmx-nv-linea::before {
  content: ""; position: absolute; left: 9px; top: 12px; bottom: 12px; width: 2px; border-radius: 2px;
  background: linear-gradient(var(--bmx-linea), var(--bmx-linea) 80%, transparent);
}
.bmx-nv-grupo {
  position: relative; padding: 16px 20px 6px; border-radius: 16px; border: 1px solid var(--bmx-linea);
  background: var(--bmx-card); animation: bmx-subir .34s cubic-bezier(.2, .7, .2, 1) both;
}
.bmx-nv-grupo:nth-child(2) { animation-delay: 50ms; } .bmx-nv-grupo:nth-child(3) { animation-delay: 100ms; }
.bmx-nv-grupo:nth-child(n+4) { animation-delay: 150ms; }
.bmx-nv-nodo {
  position: absolute; left: -25px; top: 21px; width: 12px; height: 12px; border-radius: 50%;
  background: var(--bmx-card); border: 2px solid var(--bmx-suave);
}
.bmx-nv-grupo.is-nuevo .bmx-nv-nodo { border-color: var(--bmx-acento); background: var(--bmx-acento); box-shadow: 0 0 0 4px var(--bmx-acento-suave); }
.bmx-nv-grupo-cab { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; }
.bmx-nv-version {
  font-size: 13px; font-weight: 700; padding: 2px 9px; border-radius: 999px; font-variant-numeric: tabular-nums;
  background: var(--surface-muted, rgba(15, 23, 42, .05)); color: var(--bmx-tinta); border: 1px solid var(--bmx-linea);
}
.bmx-nv-fecha { font-size: 13.5px; font-weight: 500; color: var(--bmx-suave); }
.bmx-nv-grupo-h { margin: 10px 0 0; font-size: 17px; font-weight: 650; letter-spacing: -.01em; }
.bmx-nv-filas { list-style: none; margin: 4px 0 0; padding: 0; }
.bmx-nv-fila {
  display: grid; grid-template-columns: 116px minmax(0, 1fr) auto; gap: 4px 14px; align-items: start;
  padding: 13px 0; border-top: 1px solid var(--border-soft, var(--bmx-linea));
}
.bmx-nv-fila:first-child { border-top: 0; }
.bmx-nv-chip {
  display: inline-flex; align-items: center; gap: 6px; justify-self: start; margin-top: 1px;
  padding: 3px 10px 3px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; white-space: nowrap;
}
.bmx-nv-chip-ic { display: inline-flex; }
.bmx-nv-chip-ic svg { width: 13px; height: 13px; display: block; }
.bmx-nv-nueva { background: var(--bmx-acento-suave); color: var(--bmx-acento); }
.bmx-nv-mejora { background: var(--success-surface, #ecfdf5); color: var(--success-text, #065f46); }
.bmx-nv-correccion { background: var(--neutral-surface, #f3f4f6); color: var(--bmx-tinta); }
.bmx-nv-fila-tx { min-width: 0; }
.bmx-nv-fila-h { margin: 0; font-size: 15px; font-weight: 600; line-height: 1.4; }
.bmx-nv-fila-p { margin: 3px 0 0; font-size: 14px; line-height: 1.55; color: var(--bmx-suave); }
.bmx-nv-punto {
  display: inline-block; margin-left: 8px; padding: 1px 7px; border-radius: 999px; background: var(--bmx-acento);
  color: #fff; font-size: 11px; font-weight: 700; letter-spacing: .02em; vertical-align: 2px; text-transform: none;
}
.bmx-nv-link {
  display: inline-flex; align-items: center; gap: 4px; min-height: 36px; padding: 0 10px; border-radius: 10px;
  font-size: 13.5px; font-weight: 600; color: var(--bmx-acento); text-decoration: none; white-space: nowrap;
}
.bmx-nv-link:hover { background: var(--bmx-acento-suave); }
.bmx-nv-link .bmx-nv-flecha svg { width: 14px; height: 14px; }
.bmx-modal-nv { width: min(720px, 100%); }
.bmx-modal-nv .bmx-modal-cuerpo { padding-top: 20px; }
@keyframes bmx-respira { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.04); } }
@keyframes bmx-gira { to { transform: rotate(360deg); } }
@keyframes bmx-pulso {
  0% { box-shadow: 0 0 0 0 rgba(122, 44, 54, .45); } 70% { box-shadow: 0 0 0 8px rgba(122, 44, 54, 0); }
  100% { box-shadow: 0 0 0 0 rgba(122, 44, 54, 0); }
}

/* ── capa + modal ────────────────────────────────────────────────────────────────── */
.bmx-capa {
  position: fixed; inset: 0; z-index: 1200; display: grid; place-items: center; padding: 16px;
  background: rgba(10, 10, 12, .44); opacity: 0; transition: opacity .2s ease;
}
.bmx-capa.is-in { opacity: 1; }
.bmx-modal {
  width: min(560px, 100%); max-height: calc(100vh - 32px); display: flex; flex-direction: column;
  background: var(--bmx-card); color: var(--bmx-tinta); border-radius: 16px; box-shadow: var(--bmx-sombra);
  border: 1px solid var(--bmx-linea); transform: translateY(8px) scale(.98); transition: transform .24s cubic-bezier(.2, .7, .2, 1);
}
.bmx-capa.is-in .bmx-modal { transform: none; }
.bmx-modal-cab { padding: 24px 24px 8px; }
.bmx-modal-h { margin: 0; font-size: 22px; font-weight: 700; letter-spacing: -.01em; }
.bmx-modal-cuerpo { padding: 12px 24px; overflow: auto; display: grid; gap: 12px; }
.bmx-modal-pie { padding: 14px 24px 22px; display: flex; justify-content: flex-end; align-items: center; gap: 12px; flex-wrap: wrap; }
.bmx-modal-video { width: min(880px, 100%); padding: 0; background: #000; overflow: hidden; position: relative; }
.bmx-video-player { width: 100%; max-height: 80vh; display: block; }
.bmx-x-flotante { position: absolute; top: 8px; right: 8px; z-index: 1; background: rgba(0, 0, 0, .5); color: #fff; }

@keyframes bmx-subir { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ── «?» y hoja de ayuda ─────────────────────────────────────────────────────────── */
.bmx-ayuda-btn {
  position: fixed; top: 14px; right: 16px; z-index: 900; width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid var(--bmx-linea); background: var(--bmx-card); color: var(--bmx-acento);
  font: 700 16px/1 var(--bm-font, 'Inter', sans-serif); cursor: pointer;
  box-shadow: 0 4px 14px -6px rgba(15, 23, 42, .25); transition: transform .15s ease, box-shadow .15s ease;
}
.bmx-ayuda-btn:hover { transform: translateY(-1px); box-shadow: 0 8px 20px -8px rgba(15, 23, 42, .35); }
.bmx-ayuda-btn[hidden] { display: none; }
.bmx-ayuda-btn--linea { position: static; flex: none; box-shadow: none; }
.bmx-hoja {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 1100; width: min(400px, 100%); overflow: auto;
  padding: 22px 22px 28px; background: var(--bmx-card); color: var(--bmx-tinta);
  border-left: 1px solid var(--bmx-linea); box-shadow: var(--bmx-sombra);
  transform: translateX(24px); opacity: 0; transition: transform .24s cubic-bezier(.2, .7, .2, 1), opacity .2s ease;
}
.bmx-hoja.is-in { transform: none; opacity: 1; }
.bmx-hoja-cab { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 14px; }
.bmx-hoja-h { margin: 0; font-size: 20px; font-weight: 700; letter-spacing: -.01em; }
.bmx-frases { margin: 0 0 18px; padding: 0; list-style: none; counter-reset: bmx; display: grid; gap: 10px; }
.bmx-frases li { counter-increment: bmx; position: relative; padding-left: 34px; font-size: 15px; line-height: 1.5; }
.bmx-frases li::before {
  content: counter(bmx); position: absolute; left: 0; top: 0; width: 24px; height: 24px; border-radius: 50%;
  display: grid; place-items: center; font-size: 12px; font-weight: 700;
  background: var(--bmx-acento-suave); color: var(--bmx-acento);
}
.bmx-hoja-pie { margin: 8px 0 0; font-size: 13px; color: var(--bmx-suave); text-align: center; }
.bmx-diagrama { width: 100%; height: auto; display: block; margin: 4px 0 14px; }
.bmx-dg-caja { fill: var(--surface-muted, var(--bmx-acento-suave)); stroke: var(--bmx-linea); stroke-width: 1;
  animation: bmx-aparecer .4s ease both; }
.bmx-dg-final { fill: var(--bmx-acento-suave); stroke: var(--bmx-acento); }
.bmx-dg-n { font: 700 11px var(--bm-font, 'Inter', sans-serif); fill: var(--bmx-acento); }
.bmx-dg-tx { font: 500 10.5px var(--bm-font, 'Inter', sans-serif); fill: var(--bmx-tinta); }
.bmx-dg-flecha { fill: none; stroke: var(--bmx-suave); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
@keyframes bmx-aparecer { from { opacity: 0; } to { opacity: 1; } }

/* ── video ───────────────────────────────────────────────────────────────────────── */
.bmx-video {
  width: 100%; display: flex; align-items: center; gap: 12px; margin: 10px 0 0; padding: 10px 12px;
  border: 1px solid var(--bmx-linea); border-radius: 12px; background: var(--bmx-card); color: var(--bmx-tinta);
  cursor: pointer; text-align: left; font: inherit;
}
.bmx-video:hover { border-color: var(--bmx-acento); }
.bmx-video-play { flex: none; width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center;
  background: var(--bmx-acento); color: #fff; }
.bmx-video-play svg { width: 18px; height: 18px; }
.bmx-video-tx { display: grid; gap: 2px; font-size: 14px; }
.bmx-video-dur { font-size: 12.5px; color: var(--bmx-suave); }

/* ── guía (respuesta a «Pregúntale a Brainmore») ─────────────────────────────────── */
.bmx-guia {
  margin: 14px 0 0; padding: 16px 18px; border-radius: 12px; border: 1px solid var(--bmx-linea);
  border-left: 3px solid var(--bmx-acento); background: var(--bmx-card); color: var(--bmx-tinta);
  animation: bmx-subir .3s ease both;
}
.bmx-guia-cab { display: flex; justify-content: space-between; align-items: center; }
.bmx-guia-h { margin: 6px 0 8px; font-size: 16px; font-weight: 600; }
.bmx-guia-pasos { margin: 0; padding-left: 20px; display: grid; gap: 6px; font-size: 14.5px; line-height: 1.5; }

/* ── glosario ────────────────────────────────────────────────────────────────────── */
.bmx-termino { text-decoration: underline dotted; text-underline-offset: 3px; cursor: help; }
.bmx-tip {
  position: absolute; z-index: 1300; padding: 12px 14px; border-radius: 12px;
  background: var(--bmx-tinta); color: var(--bmx-card); box-shadow: var(--bmx-sombra);
  font-size: 13.5px; line-height: 1.5; opacity: 0; transform: translateY(4px); transition: opacity .15s ease, transform .15s ease;
}
.bmx-tip.is-in { opacity: 1; transform: none; }
.bmx-tip strong { display: block; margin-bottom: 2px; font-size: 13.5px; }
.bmx-tip p { margin: 0; }

/* ── recorridos ──────────────────────────────────────────────────────────────────── */
.bmx-tour-velo { position: fixed; inset: 0; z-index: 1250; background: transparent; pointer-events: none; }
.bmx-tour-anillo {
  position: fixed; z-index: 1251; border-radius: 12px; pointer-events: none;
  box-shadow: 0 0 0 3px var(--bmx-acento, #7a2c36), 0 0 0 9999px rgba(10, 10, 12, .42);
  transition: left .28s ease, top .28s ease, width .28s ease, height .28s ease;
}
.bmx-tour-globo {
  position: fixed; z-index: 1252; padding: 16px 16px 10px; border-radius: 14px;
  background: var(--bmx-card); color: var(--bmx-tinta); box-shadow: var(--bmx-sombra); border: 1px solid var(--bmx-linea);
  opacity: 0; transform: translateY(6px); transition: opacity .2s ease, transform .2s ease, top .28s ease, left .28s ease;
}
.bmx-tour-globo.is-in { opacity: 1; transform: none; }
.bmx-tour-flecha {
  position: absolute; width: 14px; height: 14px; margin-left: -7px; background: var(--bmx-card);
  border: 1px solid var(--bmx-linea); transform: rotate(45deg);
}
.bmx-tour-globo[data-lado="abajo"] .bmx-tour-flecha { top: -8px; border-right: 0; border-bottom: 0; }
.bmx-tour-globo[data-lado="arriba"] .bmx-tour-flecha { bottom: -8px; border-left: 0; border-top: 0; }
.bmx-tour-n { font-size: 12px; font-weight: 600; color: var(--bmx-suave); letter-spacing: .04em; }
.bmx-tour-h { margin: 4px 0 4px; font-size: 16px; font-weight: 600; }
.bmx-tour-p { margin: 0 0 8px; font-size: 14px; line-height: 1.5; color: var(--bmx-suave); }
.bmx-tour-pie { display: flex; align-items: center; gap: 6px; }
.bmx-tour-nunca { margin-right: auto; font-size: 13px; }
.bmx-tour-pie .bmx-boton { min-height: 38px; padding: 0 14px; }

/* ── centro «Aprende Brainmore» ──────────────────────────────────────────────────── */
.bmx-centro {
  position: fixed; inset: 0; z-index: 1150; overflow: auto; background: var(--bg, var(--papel, #fafafa));
  color: var(--text, var(--tinta, #1a1a1a)); opacity: 0; transition: opacity .22s ease;
  font-family: var(--bm-font, 'Inter', -apple-system, BlinkMacSystemFont, sans-serif);
  --bmx-card: var(--card, var(--papel, #fff)); --bmx-tinta: var(--text, var(--tinta, #1a1a1a));
  --bmx-suave: var(--text-mute, var(--gris, #636a75)); --bmx-linea: var(--border, var(--linea, #e5e5e5));
  --bmx-acento: var(--bm-accent, var(--granate, #7a2c36)); --bmx-acento-suave: var(--primary-soft, rgba(122, 44, 54, .08));
  --bmx-holo-a: var(--bxe-a, #2563EB); --bmx-holo-b: var(--bxe-b, #7C3AED);
}
.bmx-centro.is-in { opacity: 1; }
.bmx-centro-marco { max-width: 1040px; margin: 0 auto; padding: 32px 24px 64px; }
.bmx-centro-cab { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; }
.bmx-centro-h { margin: 0; font-size: 30px; font-weight: 700; letter-spacing: -.02em; }
.bmx-tabs { display: flex; gap: 4px; margin: 22px 0 20px; border-bottom: 1px solid var(--bmx-linea); }
.bmx-tab {
  background: none; border: 0; border-bottom: 3px solid transparent; padding: 10px 14px; min-height: 44px;
  font: inherit; font-size: 15px; font-weight: 600; color: var(--bmx-suave); cursor: pointer;
}
.bmx-tab[aria-selected="true"] { color: var(--bmx-acento); border-bottom-color: var(--bmx-acento); }
.bmx-aprende-grilla { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 16px; }
.bmx-seccion {
  padding: 20px; border-radius: 16px; background: var(--bmx-card); border: 1px solid var(--bmx-linea);
  animation: bmx-subir .34s cubic-bezier(.2, .7, .2, 1) both; transition: box-shadow .2s ease;
}
.bmx-seccion.is-foco { box-shadow: 0 0 0 2px var(--bmx-acento); }
.bmx-seccion:nth-child(2) { animation-delay: 60ms; } .bmx-seccion:nth-child(3) { animation-delay: 120ms; }
.bmx-seccion:nth-child(4) { animation-delay: 180ms; }
.bmx-seccion-ic { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center;
  background: var(--bmx-acento-suave); color: var(--bmx-acento); margin-bottom: 12px; }
.bmx-seccion-ic svg { width: 20px; height: 20px; }
.bmx-seccion-h { margin: 0 0 4px; font-size: 18px; font-weight: 600; }
.bmx-seccion-p { margin: 0 0 8px; font-size: 14.5px; line-height: 1.55; color: var(--bmx-suave); }
.bmx-fila {
  width: 100%; display: flex; align-items: center; gap: 10px; margin-top: 8px; padding: 10px 12px; min-height: 44px;
  border-radius: 10px; border: 1px solid var(--bmx-linea); background: transparent; color: var(--bmx-tinta);
  font: inherit; font-size: 14px; text-align: left; cursor: pointer;
}
.bmx-fila:hover { border-color: var(--bmx-acento); }
a.bmx-fila { text-decoration: none; box-sizing: border-box; }
.bmx-fila-ic { color: var(--bmx-acento); font-weight: 700; }
.bmx-ejemplos { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.bmx-ejemplo {
  border: 1px solid var(--bmx-linea); background: var(--bmx-card); color: var(--bmx-tinta); border-radius: 999px;
  padding: 6px 12px; min-height: 36px; font: inherit; font-size: 13.5px; cursor: pointer;
}
.bmx-ejemplo:hover { border-color: var(--bmx-acento); color: var(--bmx-acento); }
.bmx-vacio { color: var(--bmx-suave); }

/* ── teléfono (375 px) ───────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .bmx-ayuda-btn { top: 10px; right: 12px; width: 34px; height: 34px; }
  .bmx-hoja { top: auto; left: 0; width: 100%; max-height: 86vh; border-left: 0; border-top: 1px solid var(--bmx-linea);
    border-radius: 18px 18px 0 0; transform: translateY(24px); padding: 20px 16px 24px; }
  .bmx-capa { align-items: end; padding: 0; }
  .bmx-modal { width: 100%; border-radius: 18px 18px 0 0; max-height: 88vh; }
  .bmx-modal-cab, .bmx-modal-cuerpo, .bmx-modal-pie { padding-left: 16px; padding-right: 16px; }
  .bmx-modal-pie .bmx-boton { flex: 1; }
  .bmx-centro-marco { padding: 20px 16px 48px; }
  .bmx-centro-h { font-size: 24px; }
  .bmx-aprende-grilla { grid-template-columns: 1fr; }
  .bmx-aviso { left: 12px; right: 12px; bottom: 12px; width: auto; }
  .bmx-nv { gap: 20px; }
  .bmx-nv-hero { grid-template-columns: minmax(0, 1fr); padding: 22px 18px 20px; border-radius: 18px; }
  .bmx-nv-orbe { position: absolute; top: -18px; right: -22px; width: 116px; height: 116px; opacity: .9; }
  .bmx-nv-ceja { padding-right: 76px; }
  .bmx-nv-hero-h { font-size: 24px; padding-right: 40px; }
  .bmx-nv-hero-p { font-size: 15px; }
  .bmx-nv-acciones.is-principal .bmx-nv-probar { flex: 1 1 100%; }
  .bmx-nv-linea { padding-left: 20px; }
  .bmx-nv-linea::before { left: 5px; }
  .bmx-nv-nodo { left: -21px; }
  .bmx-nv-grupo { padding: 14px 14px 4px; }
  .bmx-nv-fila { grid-template-columns: minmax(0, 1fr); gap: 6px; }
  .bmx-nv-fila .bmx-nv-acciones { margin-left: -10px; }
}

@media (prefers-reduced-motion: reduce) {
  .bmx-aviso, .bmx-modal, .bmx-hoja, .bmx-centro, .bmx-tour-globo, .bmx-tour-anillo, .bmx-tip, .bmx-capa,
  .bmx-seccion, .bmx-guia, .bmx-dg-caja, .bmx-nv-hero, .bmx-nv-grupo, .bmx-nv-halo, .bmx-nv-esfera,
  .bmx-nv-orbitas, .bmx-nv-pulso, .bmx-aviso-orbe, .bmx-nv-flecha svg { transition: none !important; animation: none !important; }
}