* {
  padding: none;
  margin: none;
}

/* Fondo general y tipografía */
body {
  margin: 0;
  font-family: "Segoe UI", sans-serif;
  /*   background: radial-gradient(circle at center, #f8f4ff, hsl(218, 45%, 37%)); */
  background: radial-gradient(circle at center, #f8f4ff, #d5a00f65);

  color: #1a1a1a;
  text-align: center;
}




/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
  background: transparent;
  font-weight: bold;
}

header div:first-child {
  font-size: 1.5rem;
  color: #003d79;
}

.nav-links {
  background-color: white;
  padding: 10px;
  border-radius: 50px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  /* sombra suave */
  display: flex;
  gap: 1rem;
  /* espacio entre los <a> */
}

header a {
  margin: 0 0.75rem;
  text-decoration: none;
  color: #333;
  font-weight: 500;
}

header button {
  margin-left: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: 20px;
  border: none;
  font-weight: 600;
  cursor: pointer;
}

header button:first-of-type {
  background-color: white;
  border: 1px solid #ccc;
  color: #555;
}

header button:last-of-type {
  background-color: #0033ff;
  color: white;
}

/* Texto principal */
strong {
  display: block;
  font-size: 2.5rem;
  margin: 2rem 0 1rem;
}

p {
  font-size: 1rem;
  color: #555;
  /* max-width: 600px; */
  margin: 0 auto 1rem;
}

/* Botón principal */
div>button {
  background-color: #003d79;
  color: white;
  padding: 0.7rem 2rem;
  border: none;
  border-radius: 25px;
  font-size: 1rem;
  cursor: pointer;
}

div>div p {
  margin: 0;
  font-size: 0.9rem;
  color: #888;
}

/* Scroll hint */
body>p:last-of-type {
  margin-top: 2rem;
  font-size: 0.85rem;
  color: #aaa;
  letter-spacing: 1px;
}

.ocultar-scroll {
  scrollbar-width: none;
  /* Firefox */
  -ms-overflow-style: none;
  /* IE 10+ */
}

.ocultar-scroll::-webkit-scrollbar {
  display: none;
  /* Chrome, Safari */
}

.circle-background {
  margin-top: 0;
  padding-top: 0;
  position: fixed;
  top: none;
  left: none;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  background-color: #003d79c2;
  /* para que esté detrás de todo */
  pointer-events: none;
  /* no interfiere con el contenido */
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  overflow: hidden;
}

.circle {
  position: absolute;
  background: radial-gradient(circle, rgb(255, 255, 255), transparent);
  border-radius: 50%;
  pointer-events: none;
  backdrop-filter: blur(2px);
}

.invert {
  filter: invert(1);
}