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

html, body {
  width: 100%;
  height: 100%;
}

body {
  font-family: "Poppins", Arial, sans-serif;
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  text-align: center;
  overflow: hidden;
  position: relative;

  /* 🌈 Fundo animado */
  background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
  background-size: 400% 400%;
  animation: gradient 15s ease infinite;
}

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

/* CARD CENTRAL */
.container {
  background-color: rgba(0, 0, 0, 0.75);
  padding: 40px 30px;
  border-radius: 20px;
  box-shadow: 0 0 25px rgba(0, 0, 0, 0.4);
  z-index: 1;
  max-width: 320px;
  width: 90%;
  backdrop-filter: blur(6px);
}

.logo {
  width: 120px;
  border-radius: 10px;
  margin-bottom: 20px;
}

h1 {
  font-size: 1.8rem;
  margin-bottom: 10px;
}

.subtitle {
  font-size: 0.95rem;
  color: #f5f5f5;
  margin-bottom: 25px;
  line-height: 1.4;
}

button#ctaButton {
  background-color: #28e69a;
  color: #000;
  font-weight: bold;
  border: none;
  border-radius: 10px;
  padding: 15px 30px;
  font-size: 1rem;
  cursor: pointer;
  transition: 0.3s;
  width: 100%;
}

button#ctaButton:hover {
  background-color: #1ac27c;
}

.footer {
  margin-top: 20px;
  color: #fff;
  font-size: 0.85rem;
  text-shadow: 0 0 3px rgba(0, 0, 0, 0.5);
  z-index: 1;
}

/* RESPONSIVIDADE */
@media (max-width: 600px) {
  .container {
    padding: 30px 20px;
  }
  h1 {
    font-size: 1.6rem;
  }
  .subtitle {
    font-size: 0.9rem;
  }
}