/* ==========================================================================
   FUTU PRO · sistema visual del embudo
   Identidad tomada de futupro.com: azul #000082, Montserrat + IBM Plex Mono,
   esquinas casi rectas, rótulos técnicos en mono. Se suma una capa «laboratorio»:
   retícula, halos y barrido de escáner, todo con transform/opacity.
   ========================================================================== */
:root {
  --azul: #000082;
  --azul-hover: #000055;
  --azul-vivo: #2a3dff;
  --azul-claro: #e8edf5;
  --cian: #5ad1ff;
  --noche: #03051f;
  --noche-2: #070b33;
  --tinta: #0a0f1c;
  --texto: #1b2340;
  --texto-2: #4a5578;
  --texto-3: #7d87a6;
  --fondo: #ffffff;
  --superficie: #f8fafc;
  --superficie-2: #f1f5f9;
  --borde: #e2e8f0;
  --borde-2: #cbd5e1;
  --ok: #16a34a;
  --wa: #25d366;
  --blanco-70: rgba(255, 255, 255, .7);
  --blanco-50: rgba(255, 255, 255, .5);
  --blanco-12: rgba(255, 255, 255, .12);
  --blanco-06: rgba(255, 255, 255, .06);
  --sans: 'Montserrat', Helvetica, Arial, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, Menlo, monospace;
  --r: 4px;
  --r-lg: 8px;
  --sombra: 0 1px 2px rgba(15, 23, 42, .04), 0 8px 24px rgba(15, 23, 42, .06);
  --sombra-azul: 0 10px 30px -8px rgba(0, 0, 130, .45);
  --ancho: 1160px;
  --gutter: 16px;
}
@media (min-width: 768px) { :root { --gutter: 32px; } }

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
html, body { overflow-x: clip; }
body {
  margin: 0; background: var(--fondo); color: var(--texto);
  font: 500 16px/1.6 var(--sans); -webkit-font-smoothing: antialiased;
}
img, video { display: block; max-width: 100%; height: auto; }
button { font: inherit; color: inherit; cursor: pointer; }
a { color: inherit; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--azul-vivo); outline-offset: 3px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.cont { width: 100%; max-width: var(--ancho); margin: 0 auto; padding: 0 var(--gutter); }
.sec { position: relative; padding: 72px 0; isolation: isolate; }
@media (min-width: 900px) { .sec { padding: 112px 0; } }
.sec--gris { background: var(--superficie); }
.sec--noche { background: var(--noche); color: #fff; }
.sec--noche .t-2, .sec--noche .lead { color: var(--blanco-70); }

/* ---------- Logo (el PNG oficial como máscara, se tiñe con currentColor) ---------- */
.logo {
  display: block; width: 132px; aspect-ratio: 800 / 177; background: currentColor; color: var(--azul);
  -webkit-mask: url(../img/Logo-Futu-Gold.webp) left center / contain no-repeat;
  mask: url(../img/Logo-Futu-Gold.webp) left center / contain no-repeat;
}
.logo--blanco { color: #fff; }
@media (min-width: 768px) { .logo { width: 168px; } }

/* ---------- Tipografía ---------- */
.kicker {
  display: inline-flex; align-items: center; gap: 10px; margin: 0 0 16px;
  font: 600 11px/1.3 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--azul);
}
.kicker::before { content: ''; width: 18px; height: 1px; background: currentColor; flex: none; }
.sec--noche .kicker { color: var(--cian); }
.h1 {
  margin: 0; font: 800 clamp(34px, 8.6vw, 64px)/1.04 var(--sans); letter-spacing: -.03em; color: var(--tinta);
  text-wrap: balance;
}
.h2 {
  margin: 0; font: 800 clamp(28px, 6.4vw, 46px)/1.08 var(--sans); letter-spacing: -.025em; color: var(--tinta);
  text-wrap: balance;
}
.h3 { margin: 0; font: 700 19px/1.3 var(--sans); letter-spacing: -.01em; color: var(--tinta); }
.sec--noche .h1, .sec--noche .h2, .sec--noche .h3 { color: #fff; }
.resalta { color: var(--azul); }
.sec--noche .resalta {
  background: linear-gradient(90deg, #fff, var(--cian) 60%, #9db0ff);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lead { margin: 18px 0 0; font-size: 17px; line-height: 1.65; color: var(--texto-2); max-width: 62ch; text-wrap: pretty; }
@media (min-width: 900px) { .lead { font-size: 18px; } }
.t-2 { color: var(--texto-2); }
.mono { font-family: var(--mono); }
.cabeza { max-width: 760px; }
.cabeza--centro { margin: 0 auto; text-align: center; }
.cabeza--centro .kicker { justify-content: center; }
.cabeza--centro .lead { margin-left: auto; margin-right: auto; }

/* ---------- Botones ---------- */
.btn {
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 56px; padding: 0 28px; border: 0; border-radius: var(--r); text-decoration: none; text-align: center;
  font: 700 14px/1.2 var(--sans); letter-spacing: .06em; text-transform: uppercase;
  background: var(--azul); color: #fff; box-shadow: var(--sombra-azul); overflow: hidden;
  transition: transform var(--t, .2s) ease, background .2s ease, box-shadow .2s ease;
}
.btn::after { /* brillo que cruza el botón */
  content: ''; position: absolute; inset: 0; transform: translateX(-120%);
  background: linear-gradient(100deg, transparent 30%, rgba(255, 255, 255, .35) 50%, transparent 70%);
  animation: brillo 4.5s ease-in-out infinite;
}
.btn:hover { background: var(--azul-hover); transform: translateY(-1px); }
.btn:active { transform: translateY(1px) scale(.99); }
.btn--blanco { background: #fff; color: var(--azul); box-shadow: 0 0 0 1px rgba(255, 255, 255, .3), 0 12px 40px -8px rgba(90, 209, 255, .55); }
.btn--blanco:hover { background: #eef3ff; }
.btn--linea { background: transparent; color: var(--azul); box-shadow: inset 0 0 0 1.5px var(--azul); }
.btn--linea::after { display: none; }
.btn--linea:hover { background: var(--azul-claro); color: var(--azul); }
.btn--ancho { width: 100%; }
.btn small { display: block; font: 500 11px/1.2 var(--mono); letter-spacing: .08em; opacity: .75; text-transform: none; }
.btn .flecha { transition: transform .2s ease; }
.btn:hover .flecha { transform: translateX(3px); }
@keyframes brillo { 0%, 70% { transform: translateX(-120%); } 100% { transform: translateX(120%); } }

/* ---------- Fondos «laboratorio» ---------- */
.fx { position: absolute; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
.fx__reticula {
  position: absolute; inset: -1px;
  background-image:
    linear-gradient(to right, rgba(0, 0, 130, .07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 0, 130, .07) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 30%, transparent 75%);
  mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 30%, transparent 75%);
}
.sec--noche .fx__reticula {
  background-image:
    linear-gradient(to right, rgba(120, 150, 255, .09) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(120, 150, 255, .09) 1px, transparent 1px);
}
.fx__halo {
  position: absolute; width: 60vmax; height: 60vmax; border-radius: 50%; filter: blur(10px); opacity: .55;
  background: radial-gradient(circle, rgba(42, 61, 255, .22), transparent 62%);
  animation: deriva 18s ease-in-out infinite alternate;
}
.fx__halo--2 { right: -20vmax; bottom: -30vmax; animation-duration: 23s; animation-delay: -6s;
  background: radial-gradient(circle, rgba(90, 209, 255, .18), transparent 62%); }
.fx__halo--1 { left: -25vmax; top: -30vmax; }
.sec--noche .fx__halo { opacity: .9; }
.fx__escaner {
  position: absolute; left: 0; right: 0; top: 0; height: 140px;
  background: linear-gradient(to bottom, transparent, rgba(42, 61, 255, .07) 85%, rgba(42, 61, 255, .22) 100%);
  border-bottom: 1px solid rgba(42, 61, 255, .25);
  animation: barrido 9s cubic-bezier(.45, 0, .55, 1) infinite;
}
.sec--noche .fx__escaner { background: linear-gradient(to bottom, transparent, rgba(90, 209, 255, .06) 85%, rgba(90, 209, 255, .18)); border-color: rgba(90, 209, 255, .3); }
.fx__puntos { /* moléculas: una sola capa con todos los puntos en el fondo */
  position: absolute; inset: -40px;
  background-image: radial-gradient(rgba(0, 0, 130, .22) 1.2px, transparent 1.6px);
  background-size: 26px 26px; opacity: .5;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 30%, #000 60%, transparent);
  mask-image: linear-gradient(to bottom, transparent, #000 30%, #000 60%, transparent);
  animation: flota 30s linear infinite;
}
.sec--noche .fx__puntos { background-image: radial-gradient(rgba(140, 170, 255, .35) 1.2px, transparent 1.6px); }
@keyframes deriva { to { transform: translate3d(12vmax, 8vmax, 0) scale(1.1); } }
@keyframes barrido { 0% { transform: translateY(-160px); } 100% { transform: translateY(calc(100vh + 200px)); } }
@keyframes flota { to { transform: translate3d(26px, 26px, 0); } }

/* Esquinas técnicas, como las de futupro.com */
.marco { position: relative; }
.marco::before, .marco::after {
  content: ''; position: absolute; width: 14px; height: 14px; border: 1.5px solid var(--azul); pointer-events: none;
}
.marco::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.marco::after { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }
.sec--noche .marco::before, .sec--noche .marco::after { border-color: var(--cian); }

/* ---------- Encabezado (sin salidas en el embudo) ---------- */
.top { position: relative; z-index: 5; border-bottom: 1px solid var(--borde); background: rgba(255, 255, 255, .85); backdrop-filter: blur(10px); }
.top__in { display: flex; align-items: center; justify-content: space-between; gap: 12px; height: 64px; }
.top__tag { display: none; font: 600 10px/1.2 var(--mono); letter-spacing: .14em; color: rgba(0, 0, 130, .7); text-transform: uppercase; padding-left: 12px; border-left: 1px solid rgba(0, 0, 130, .2); }
@media (min-width: 600px) { .top__tag { display: inline-block; } }
.top__marca { display: flex; align-items: center; gap: 12px; }
.estado { display: inline-flex; align-items: center; gap: 8px; font: 600 10.5px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--texto-2); }
.estado i { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 0 rgba(22, 163, 74, .5); animation: pulso 2s infinite; }
@keyframes pulso { 70% { box-shadow: 0 0 0 8px rgba(22, 163, 74, 0); } 100% { box-shadow: 0 0 0 0 rgba(22, 163, 74, 0); } }

/* ---------- Tarjetas y piezas ---------- */
.tarjeta { position: relative; background: #fff; border: 1px solid var(--borde); border-radius: var(--r); padding: 24px; box-shadow: var(--sombra); }
.sec--noche .tarjeta { background: rgba(255, 255, 255, .03); border-color: var(--blanco-12); box-shadow: none; }
.etiqueta { display: inline-block; font: 600 10.5px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--azul); background: var(--azul-claro); padding: 6px 8px; border-radius: 2px; }
.sec--noche .etiqueta { background: rgba(90, 209, 255, .12); color: var(--cian); }
.check { display: grid; grid-template-columns: 22px 1fr; gap: 10px; align-items: start; margin: 0; padding: 0; list-style: none; }
.check li { display: contents; }
.check li::before { content: ''; width: 18px; height: 18px; margin-top: 3px; border-radius: 2px; background: var(--azul) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center / 12px no-repeat; }

/* Aparecer al bajar (la clase la pone embudo.js; sin JS todo queda visible) */
.js .rev { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .7, .2, 1); }
.js .rev.on { opacity: 1; transform: none; }

/* Cinta de marcas */
.cinta { overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.cinta__pista { display: flex; gap: 16px; width: max-content; animation: cinta 38s linear infinite; }
.cinta:hover .cinta__pista { animation-play-state: paused; }
.cinta__item { flex: none; width: 132px; aspect-ratio: 1; border-radius: var(--r); overflow: hidden; border: 1px solid var(--borde); background: #fff; }
.cinta__item img { width: 100%; height: 100%; object-fit: cover; }
@keyframes cinta { to { transform: translateX(calc(-50% - 8px)); } }

/* Acordeón FAQ */
.faq { display: grid; gap: 10px; max-width: 820px; margin: 40px auto 0; }
.faq details { background: #fff; border: 1px solid var(--borde); border-radius: var(--r); transition: border-color .2s, box-shadow .2s; }
.faq details[open] { border-color: rgba(0, 0, 130, .35); box-shadow: var(--sombra); }
.faq summary { display: flex; justify-content: space-between; gap: 16px; align-items: center; padding: 18px 20px; font-weight: 700; color: var(--tinta); cursor: pointer; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; flex: none; width: 28px; height: 28px; display: grid; place-items: center; font: 500 20px/1 var(--mono); color: var(--azul); border: 1px solid var(--borde-2); border-radius: 2px; transition: transform .25s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq p { margin: 0; padding: 0 20px 20px; color: var(--texto-2); }

/* Pie */
.pie { background: var(--noche); color: var(--blanco-70); padding: 40px 0 28px; font-size: 13px; }
.pie__in { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; align-items: center; }
.pie a { color: var(--blanco-70); }

/* Movimiento reducido: todo quieto */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .js .rev { opacity: 1; transform: none; }
}