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

html{
  scroll-behavior: smooth;
}

body{
  font-family: Arial, sans-serif;
  color: white;
  background:
    radial-gradient(circle at top left, rgba(46,132,255,.38), transparent 32%),
    radial-gradient(circle at bottom right, rgba(255,255,255,.10), transparent 30%),
    linear-gradient(135deg, #020817, #06164f, #081b5a);
  min-height: 100vh;
  position: relative;
}

.top-alert {
    position: sticky;
    top: 0;
    z-index: 1000;

    padding: 14px;

    text-align: center;

    background: #0c1d52;

    color: #7dd3ff;

    font-weight: 700;

    letter-spacing: 1px;

    border-bottom: 1px solid rgba(255,255,255,.15);

    box-shadow:
        0 0 10px #008cff,
        0 0 20px rgba(0,140,255,.5);
}
.header{
  width: 100%;
  padding: 18px 28px;

  display: flex;
  justify-content: space-between;
  align-items: center;

  position: sticky;
  top: 0;
  z-index: 10;

  background: rgba(2,8,23,.58);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,.12);
}

.nav-logo{
  width: 54px;
  border-radius: 12px;
}

nav{
  display: flex;
  gap: 20px;
}

nav a{
  color: rgba(255,255,255,.82);
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
}

nav a:hover{
  color: #8fc7ff;
}

.hero{
  min-height: 70vh;

  display: flex;
  align-items: center;
  justify-content: center;

  padding: 30px 20px;
}

.section,
.registro{
  padding: 30px 20px;

  display: flex;
  align-items: center;
  justify-content: center;
}
.card,
.form-card{
  width: 100%;
  max-width: 780px;

  padding: 46px 36px;
  border-radius: 28px;

  text-align: center;

  background: rgba(255,255,255,.10);
  border: 1px solid rgba(255,255,255,.18);
  backdrop-filter: blur(18px);

  box-shadow:
    0 25px 80px rgba(0,0,0,.35),
    0 0 45px rgba(55,140,255,.18);
}

.logo{
  width: 150px;
  margin: 0 auto 24px;
  border-radius: 24px;
}

.kicker{
  display: block;
  margin-bottom: 14px;

  color: #8fc7ff;

  font-size: 12px;
  font-weight: 800;
  letter-spacing: 4px;
}

h1{
  margin-bottom: 22px;

  font-size: 50px;
  line-height: 1;
  text-transform: uppercase;
}

h2{
  margin-bottom: 18px;
  font-size: 34px;
}

p{
  max-width: 640px;
  margin: 0 auto 22px;

  color: rgba(255,255,255,.82);

  font-size: 18px;
  line-height: 1.7;
}

.btn {
  display: inline-block;
  margin-top: 34px;
  padding: 18px 42px;
  background: linear-gradient(135deg, #ffffff, #8ed8ff);
  color: #03172f;
  text-decoration: none;
  font-weight: 900;
  font-size: 15px;
  letter-spacing: 1px;
  border-radius: 999px;
  box-shadow: 0 0 35px rgba(0, 174, 255, 0.55);
  transition: 0.3s ease;
}

.btn:hover {
  transform: translateY(-4px) scale(1.03);
  box-shadow: 0 0 55px rgba(0, 174, 255, 0.8);
}

footer{
  padding: 26px 20px;
  text-align: center;
}

footer p{
  margin: 0 auto;
  font-size: 14px;
  color: rgba(255,255,255,.65);
}

@media(max-width:768px){

  .header{
    padding: 14px 16px;
    flex-direction: column;
    gap: 12px;
  }

  nav{
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
  }

  nav a{
    font-size: 12px;
  }

  .hero,
  .section,
  .registro{
    min-height: auto;
    padding: 36px 16px;
  }

  .card,
  .form-card{
    padding: 34px 22px;
    border-radius: 24px;
  }

  .logo{
    width: 120px;
  }

  h1{
    font-size: 34px;
  }

  h2{
    font-size: 27px;
  }

  p{
    font-size: 15px;
  }
}

.google-form-card iframe {
  width: 100%;
  border: none;
  border-radius: 20px;
  background: white;
}

body{
    background:
    radial-gradient(circle at top left, rgba(112,205,255,.15), transparent 30%),
    radial-gradient(circle at center right, rgba(255,255,255,.05), transparent 25%),
    radial-gradient(circle at bottom left, rgba(112,205,255,.10), transparent 30%),
    linear-gradient(135deg,#03172f,#061f3f,#020b18);
}