/* MailSentry · página de venta (tema oscuro, sin dependencias externas) */
:root {
  color-scheme: dark;
  --fondo: #070707;
  --superficie: #111;
  --superficie-2: #191919;
  --borde: rgba(255, 255, 255, .08);
  --borde-fuerte: rgba(255, 255, 255, .16);
  --texto: #f5f5f5;
  --texto-2: #a8a8a8;
  --texto-3: #767676;
  --calor: #e5672b;
  --calor-brillo: #ff9a5c;
  --fuente: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--fondo); color: var(--texto); font: 16px/1.6 var(--fuente); }
a { color: #e6e6e6; }
img { max-width: 100%; }
code { font-family: ui-monospace, Consolas, monospace; font-size: .88em; background: var(--superficie-2); padding: 1px 5px; border-radius: 4px; }
.muted { color: var(--texto-3); }

/* Navegación */
.nav { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 24px; padding: 14px clamp(16px, 4vw, 48px);
  background: rgba(7, 7, 7, .82); backdrop-filter: blur(10px); border-bottom: 1px solid var(--borde); }
.nav-marca { display: flex; align-items: center; gap: 10px; font-weight: 700; text-decoration: none; color: #fff; font-size: 17px; }
.nav nav { display: flex; gap: 22px; margin-left: auto; }
.nav nav a { color: var(--texto-2); text-decoration: none; font-size: 14.5px; }
.nav nav a:hover { color: #fff; }
@media (max-width: 820px) { .nav nav { display: none; } .nav .boton { margin-left: auto; } }

/* Botones */
.boton { display: inline-flex; align-items: center; justify-content: center; padding: 11px 20px; border-radius: 10px; font-weight: 600; font-size: 15px;
  text-decoration: none; color: #fff; border: 1px solid var(--borde-fuerte); background: var(--superficie-2); transition: background .15s, transform .15s; }
.boton:hover { background: #222; transform: translateY(-1px); }
.boton-claro { background: #fff; color: #0a0a0a; border-color: #fff; }
.boton-claro:hover { background: #dedede; }
.boton:focus-visible, a:focus-visible, summary:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }

/* Hero */
.hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 24px; align-items: center;
  min-height: calc(100vh - 66px); padding: 24px clamp(16px, 4vw, 48px) 40px; max-width: 1360px; margin: 0 auto; }
.etiqueta { font-size: 11.5px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--texto-3); margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.etiqueta::before { content: ""; width: 7px; height: 7px; border: 1px solid var(--texto-3); transform: rotate(45deg); }
h1 { font-size: clamp(34px, 4.6vw, 60px); line-height: 1.06; letter-spacing: -.03em; margin: 0 0 20px; font-weight: 700; }
.resalte { color: var(--calor-brillo); }
.hero-sub { color: var(--texto-2); font-size: clamp(16px, 1.4vw, 19px); max-width: 56ch; margin: 0 0 28px; }
.hero-acciones { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-acciones.centrado { justify-content: center; }
.hero-puntos { list-style: none; padding: 0; margin: 30px 0 0; display: grid; gap: 8px; color: var(--texto-2); font-size: 15px; }
.hero-puntos li::before { content: "◆"; color: var(--calor); font-size: 10px; margin-right: 10px; vertical-align: 2px; }
.hero-visual { position: relative; height: min(620px, 72vh); border-radius: 22px;
  background: radial-gradient(ellipse at 50% 50%, #151515 0%, #080808 70%); border: 1px solid var(--borde); overflow: hidden; }
.globo { position: absolute; inset: 0; width: 100%; height: 100%; display: block; cursor: grab; touch-action: pan-y; }
.hero-aviso { position: absolute; bottom: 12px; right: 16px; font-size: 11.5px; color: var(--texto-3); }
@media (max-width: 920px) { .hero { grid-template-columns: 1fr; min-height: 0; } .hero-visual { height: 420px; } }

/* Franja de marcas */
.franja { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 10px 22px; padding: 22px 16px;
  border-top: 1px solid var(--borde); border-bottom: 1px solid var(--borde); color: var(--texto-3); font-size: 14px; }
.franja b { color: var(--texto-2); font-weight: 600; }

/* Secciones */
.seccion { max-width: 1200px; margin: 0 auto; padding: clamp(64px, 9vw, 110px) clamp(16px, 4vw, 48px) 0; }
.seccion-cabeza { max-width: 720px; margin-bottom: 40px; }
h2 { font-size: clamp(28px, 3.2vw, 42px); line-height: 1.12; letter-spacing: -.02em; margin: 0 0 14px; }
.seccion-cabeza p { color: var(--texto-2); font-size: 17px; margin: 0; }
.rejilla { display: grid; gap: 18px; }
.rejilla.tres { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 900px) { .rejilla.tres { grid-template-columns: 1fr; } }
.tarjeta { background: var(--superficie); border: 1px solid var(--borde); border-radius: 18px; padding: 26px; }
.tarjeta h3 { margin: 0 0 8px; font-size: 19px; }
.tarjeta p { color: var(--texto-2); margin: 0; font-size: 15.5px; }
.icono { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: rgba(229, 103, 43, .12);
  color: var(--calor-brillo); font-size: 20px; margin-bottom: 18px; border: 1px solid rgba(229, 103, 43, .3); }
ol.pasos { list-style: none; padding: 0; margin: 0; }
.pasos .num { font-family: ui-monospace, Consolas, monospace; color: var(--calor); font-size: 14px; display: block; margin-bottom: 14px; }

/* Ejemplo de detección */
.demo-deteccion { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 18px; margin-bottom: 36px; }
@media (max-width: 900px) { .demo-deteccion { grid-template-columns: 1fr; } }
.correo-ejemplo, .resultado { border-radius: 18px; padding: 24px; border: 1px solid var(--borde); }
.correo-ejemplo { background: #f4f4f4; color: #151515; }
.correo-cab { font-size: 14px; color: #444; display: flex; align-items: center; gap: 12px; }
.correo-cab b { color: #1b1b1b; }
.correo-dir { color: #5f6368; overflow-wrap: anywhere; }
.correo-para { color: #5f6368; font-size: 13px; }
/* Así muestra Gmail a un remitente sin foto: círculo de color con la inicial */
.avatar-correo { width: 40px; height: 40px; border-radius: 50%; flex: none; display: grid; place-items: center;
  background: #7b5ea7; color: #fff; font-size: 18px; font-weight: 500; font-family: Roboto, "Segoe UI", sans-serif; }
.correo-asunto { font-weight: 700; font-size: 20px; margin: 14px 0 10px; }
.correo-ejemplo p { margin: 0; color: #333; }
.resultado { background: var(--superficie); }
.resultado-cab { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; flex-wrap: wrap; }
.puntaje { font-size: 52px; font-weight: 700; line-height: 1; letter-spacing: -.03em; }
.puntaje small { font-size: 18px; color: var(--texto-3); }
.sello { background: rgba(208, 59, 59, .18); color: #ff8f8f; border-radius: 99px; padding: 5px 12px; font-weight: 600; font-size: 14px; }
.suplantado { display: flex; align-items: center; gap: 14px; margin-top: 18px; padding: 12px 14px; border-radius: 12px;
  background: var(--superficie-2); border: 1px solid var(--borde); font-size: 14.5px; color: var(--texto-2); }
.suplantado img { width: 48px; height: 48px; border-radius: 50%; object-fit: cover; flex: none; border: 2px solid rgba(255, 255, 255, .15); }
.suplantado b { color: #fff; }
.suplantado-etq { display: block; font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--texto-3); }
.protegido { display: block; font-size: 12.5px; color: #3ccf3c; margin-top: 2px; }
.senales { list-style: none; padding: 0; margin: 20px 0 12px; display: grid; gap: 10px; }
.senales li { display: grid; grid-template-columns: 44px 1fr; gap: 10px; color: var(--texto-2); font-size: 15px; border-top: 1px solid var(--borde); padding-top: 10px; }
.senales b { color: var(--calor-brillo); font-family: ui-monospace, Consolas, monospace; }
.nota-pie { font-size: 12.5px; color: var(--texto-3); margin: 0; }
.caracteristicas > div { border-top: 1px solid var(--borde-fuerte); padding-top: 16px; }
.caracteristicas h3 { margin: 0 0 6px; font-size: 17px; }
.caracteristicas p { margin: 0; color: var(--texto-2); font-size: 15px; }

/* Planes */
.plan { display: flex; flex-direction: column; position: relative; }
.plan-desc { margin-bottom: 18px !important; }
.plan ul { list-style: none; padding: 0; margin: 0 0 24px; display: grid; gap: 9px; color: var(--texto-2); font-size: 15px; flex: 1; }
.plan li::before { content: "✓"; color: var(--calor-brillo); margin-right: 10px; font-weight: 700; }
.precio { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 8px; margin: -6px 0 18px; padding-bottom: 18px; border-bottom: 1px solid var(--borde); }
.precio .monto { font-size: 40px; font-weight: 700; letter-spacing: -.03em; line-height: 1; color: #fff; }
.precio .desde { font-size: 13px; color: var(--texto-3); width: 100%; margin-bottom: -2px; }
.precio .periodo { font-size: 13.5px; color: var(--texto-2); }
.promo { font-size: 13.5px; color: var(--texto-2); background: rgba(229, 103, 43, .1); border: 1px solid rgba(229, 103, 43, .35);
  border-radius: 10px; padding: 9px 12px; margin: -6px 0 18px; }
.promo b { color: var(--calor-brillo); }
.promo s { color: var(--texto-3); }
.plan.destacado { border-color: rgba(229, 103, 43, .5); background: linear-gradient(170deg, #1a120d, var(--superficie) 55%); }
.cinta { position: absolute; top: -12px; left: 24px; background: var(--calor); color: #fff; font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 99px; }

/* Preguntas */
.faq { display: grid; gap: 10px; max-width: 860px; }
.faq details { background: var(--superficie); border: 1px solid var(--borde); border-radius: 14px; padding: 4px 22px; }
.faq summary { cursor: pointer; font-weight: 600; padding: 16px 0; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::after { content: "+"; color: var(--texto-3); font-size: 20px; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--texto-2); margin: 0 0 18px; }

/* Contacto y pie */
.contacto { text-align: center; padding-bottom: 40px; }
.contacto p { color: var(--texto-2); font-size: 17px; margin: 0 auto 28px; max-width: 560px; }
.contacto-ojo { display: block; margin: 0 auto 22px; filter: drop-shadow(0 0 30px rgba(255, 255, 255, .25)); animation: vigilar 6s ease-in-out infinite; }
@keyframes vigilar { 0%, 40%, 100% { transform: scaleY(1); } 44% { transform: scaleY(.08); } 48% { transform: scaleY(1); } }
.pie { margin-top: 80px; border-top: 1px solid var(--borde); padding: 28px clamp(16px, 4vw, 48px); display: flex; flex-wrap: wrap; gap: 8px 28px;
  align-items: center; justify-content: space-between; color: var(--texto-2); font-size: 14px; }
.pie div { display: flex; align-items: center; gap: 10px; color: #fff; }
.pie p { margin: 0; }

/* Aparición al hacer scroll */
.aparecer { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .8, .2, 1); }
.aparecer.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .contacto-ojo { animation: none; } .boton { transition: none; } }