body {
  color: white;
  margin: 0;
  text-align: center;
  background-color: black;
  cursor: crosshair;
}
canvas {
  display: block;
  width: 100%;
  height: 100%;
}
p {
  color: rgba(255,255,255, 0.5)
}
.header {
  top: 42%;
}
.header-content {
  padding: 50px;
  background-color: rgba(0,0,0,0.3);
  border-radius: 10px;
}
.footer {
  bottom:3%;
}
.description {
  color: gray;
  padding-top: 50px;
}
a, a:hover, a:visited {
  color: white;
  text-decoration: none;
} 
.disable-selection {
     -moz-user-select: none; /* Firefox */
      -ms-user-select: none; /* Internet Explorer */
   -khtml-user-select: none; /* KHTML browsers (e.g. Konqueror) */
  -webkit-user-select: none; /* Chrome, Safari, and Opera */
  -webkit-touch-callout: none; /* Disable Android and iOS callouts*/
}
h1::after {
  content: ' Ads';
  font-size: 12px;
  position:absolute;
  top: 3px;
  padding-left: 5px;
  font-weight: 400;
}
h2::after {
  content: '2';
  font-size: 12px;
  position:absolute;
  top: 14px;
  padding-left: 5px;
}

.btn {
  border-radius: 100px;
  padding: 10px 25px;
}

/* Contenedor fijo para el botón */
.btn-sistema-wrapper {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1000;
}

/* Botón personalizado para Ingresar al Sistema con tono naranja/ámbar */
.btn-sistema {
  background-color: #FF8C00;
  border: none;
  color: white;
  font-weight: 500;
  letter-spacing: 0.5px;
  padding: 10px 24px;
  border-radius: 40px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(255, 140, 0, 0.3);
  text-transform: uppercase;
  font-size: 0.9rem;
}

.btn-sistema:hover {
  background-color: #FFA500;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(255, 140, 0, 0.5);
  text-decoration: none;
}

.btn-sistema:active {
  transform: translateY(1px);
}

/* Estilos para el contador regresivo */
.countdown-wrapper {
  position: fixed;
  top: 20px;
  left: 20px;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(5px);
  border-radius: 12px;
  padding: 8px 16px;
  font-family: 'Segoe UI', 'Roboto', monospace;
  text-align: center;
  border-left: 3px solid #FF8C00;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* Estilos para el contador dentro del header */
.countdown-header {
  display: inline-block;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(5px);
  border-radius: 12px;
  padding: 8px 16px;
  margin-top: 15px;
  font-family: 'Segoe UI', 'Roboto', monospace;
  text-align: center;
  border-left: 3px solid #FF8C00;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.countdown-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #FFAA33;
  margin-bottom: 4px;
}

.countdown-timer {
  font-size: 1.1rem;
  font-weight: 600;
  color: white;
  letter-spacing: 1px;
}

.countdown-timer span {
  background: #FF8C00;
  padding: 2px 6px;
  border-radius: 6px;
  margin: 0 2px;
  font-weight: bold;
  font-family: monospace;
  font-size: 1.2rem;
}

/* Responsive para móviles */
@media (max-width: 768px) {
  .btn-sistema-wrapper {
    top: 10px;
    right: 10px;
  }
  .btn-sistema {
    padding: 6px 12px;
    font-size: 0.7rem;
  }
  .countdown-header {
    padding: 4px 10px;
    margin-top: 10px;
  }
  .countdown-timer {
    font-size: 0.8rem;
  }
  .countdown-timer span {
    font-size: 0.9rem;
    padding: 1px 4px;
  }
  .countdown-label {
    font-size: 0.6rem;
  }
}