/* ===========================
   ESTILOS BASE
=========================== */
body {
  margin: 0;
  padding: 0;
  font-family: 'Montserrat', sans-serif;
  color: white;
  overflow-x: hidden;

  /* Forzar que el body ocupe toda la pantalla */
  min-height: 100vh;
  height: 100vh;
  width: 100vw;

  /* ⭐ Centrado perfecto */
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;

  /* Fondo gradiente animado */
  background: linear-gradient(120deg, #050a1a, #0a1130, #09001f);
  background-size: 300% 300%;
  animation: neonBg 14s ease infinite;

  position: relative;
  z-index: 0;
}

@keyframes neonBg {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* 🌑 SOMBRA DEGRADADA ABAJO */
body::after {
  content: "";
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 50vh; 
  pointer-events: none;
  z-index: 9;

  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0) 0%,
    rgba(0, 0, 0, 0.55) 75%,
    rgba(0, 0, 0, 0.85) 100%
  );
}

.container {
  padding: 20px;
  max-width: 420px;
  position: relative;
  z-index: 10; 
}

.logo {
  width: 220px;
  margin-bottom: 20px;
  filter: drop-shadow(0 0 5px #9da83b);
}

h1 {
  font-size: 36px;
  margin: 10px 0;
  background: linear-gradient(90deg, #ffea00, #ff00d9, #00eeff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 800;
}

p {
  font-size: 18px;
  opacity: 0.9;
  line-height: 1.5;
}

/* ===========================
   BOTÓN WHATSAPP
=========================== */
.btn-wsp {
  margin-top: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  font-size: 18px;
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(6px);
  border-radius: 12px;
  color: white;
  font-weight: 600;
  text-decoration: none;
  transition: 0.25s;

  /* ⭐ Latido */
  animation: pulseWSP 1.6s infinite ease-in-out;
}

.btn-wsp img {
  width: 26px;
}

.btn-wsp:hover {
  background: rgba(255,255,255,0.2);
  transform: scale(1.05);
}

@keyframes pulseWSP {
  0% {
    transform: scale(1);
    box-shadow: 0 0 0 rgba(255,255,255,0);
  }
  50% {
    transform: scale(1.03);
    box-shadow: 0 0 18px rgba(255,255,255,0.25);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 rgba(255,255,255,0);
  }
}

/* ===========================
   CAPA 1 — GLOWS GRANDES
=========================== */
.glows {
  position: fixed;
  inset: 0;
  overflow: hidden;
  z-index: 1;
}

.glows::before,
.glows::after {
  content: "";
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  filter: blur(180px);
  opacity: 0.35;
  animation: glowMove 14s ease-in-out infinite alternate;
}

.glows::before {
  background: #000000;
  top: -20%;
  left: -10%;
}

.glows::after {
  background: #3b7e98;
  bottom: -10%;
  right: -10%;
}

@keyframes glowMove {
  0% { transform: translate(0,0) scale(1); }
  100% { transform: translate(15%,15%) scale(1.35); }
}

/* ===========================
   CAPA 2 — NIEVE FINA
=========================== */
.snow {
  position: fixed;
  inset: 0;
  background-image: url('https://www.toptal.com/designers/subtlepatterns/uploads/nice_snow.png');
  background-repeat: repeat;
  background-size: 180px;
  animation: snowfall 20s linear infinite;
  opacity: 0.05;
  z-index: 2;
}

@keyframes snowfall {
  0% { background-position: 0 0; }
  100% { background-position: 0 1600px; }
}