/* Reset básico */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Fondo moderno */
body {
  height: 100vh;
  font-family: 'Segoe UI', Tahoma, sans-serif;
  background: linear-gradient(135deg, #0f172a, #1e293b);
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Contenedor */
.container {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Tarjeta */
.card {
  background: rgba(255, 255, 255, 0.05);
  padding: 40px;
  border-radius: 16px;
  text-align: center;
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
  max-width: 400px;
}

/* Título */
.card h1 {
  color: white;
  margin-bottom: 10px;
}

/* Texto */
.card p {
  color: #cbd5f5;
  margin-bottom: 25px;
  font-size: 14px;
}

/* Botón */
.btn {
  display: inline-block;
  padding: 12px 20px;
  background: #22c55e;
  color: #0f172a;
  text-decoration: none;
  border-radius: 8px;
  font-weight: bold;
  transition: 0.3s;
}

/* Hover */
.btn:hover {
  background: #16a34a;
  transform: scale(1.05);
}