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

body {
  font-family: 'Segoe UI', sans-serif;
  background: url('https://images.unsplash.com/photo-1506744038136-46273834b3fb') no-repeat center center/cover;
  color: #f5f5f5;
  line-height: 1.6;
  padding-bottom: 100px;
  position: relative;
}

/* Fondo con overlay oscuro */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 10, 10, 0.4); /* filtro oscuro */
  z-index: -1;
}

/* Encabezado */
header.glass-header {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  padding: 1rem 2rem;
  text-align: center;
  color: #fff;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.6);
}

header h1 {
  font-size: 2.4rem;
  margin-bottom: 0.5rem;
}

nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 0.5rem 0;
}

nav a {
  text-decoration: none;
  color: #fff;
  font-weight: bold;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.6);
  transition: color 0.3s;
}

nav a:hover {
  color: #00ffff;
}

/* Secciones vidriosas más opacas */
.glass-section {
  background: rgba(20, 20, 20, 0.45); /* más oscuro y opaco */
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 20px;
  margin: 2rem auto;
  padding: 2rem;
  max-width: 800px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
  color: #f1f1f1;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.7);
}

.glass-section h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  text-align: center;
}

.glass-section p,
.glass-section li,
blockquote,
cite {
  font-size: 1.15rem;
  margin-bottom: 1rem;
  text-align: center;
}

/* Formularios */
form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

input, textarea {
  padding: 0.8rem;
  border-radius: 10px;
  border: none;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 1rem;
  backdrop-filter: blur(5px);
  box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.3);
}

input::placeholder,
textarea::placeholder {
  color: #bbb;
}

button {
  padding: 0.8rem;
  font-size: 1rem;
  background: rgba(255, 255, 255, 0.2);
  color: white;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.3s ease;
}

button:hover {
  background: rgba(255, 255, 255, 0.35);
}

/* Citas */
blockquote {
  font-style: italic;
  border-left: 4px solid #00ffff;
  padding-left: 1rem;
  margin: 1rem auto;
}

cite {
  display: block;
  text-align: right;
  font-size: 0.9rem;
  color: #ccc;
}

/* Pie de página */
footer.glass-footer {
  background: rgba(20, 20, 20, 0.5);
  backdrop-filter: blur(10px);
  padding: 1rem;
  text-align: center;
  position: fixed;
  bottom: 0;
  width: 100%;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  color: #eee;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

/* Responsive */
@media (max-width: 768px) {
  header h1 {
    font-size: 1.8rem;
  }

  nav ul {
    flex-direction: column;
    gap: 0.5rem;
  }

  .glass-section {
    padding: 1.5rem;
    margin: 1.5rem 1rem;
  }

  .glass-section h2 {
    font-size: 1.5rem;
  }

  input, textarea, button {
    font-size: 0.95rem;
    padding: 0.7rem;
  }

  footer.glass-footer {
    font-size: 0.8rem;
    padding: 0.8rem;
  }
}
.ver-notas {
  display: inline-block;
  margin-top: 1rem;
  text-align: center;
  color: #aef;
  font-weight: bold;
  text-decoration: none;
  transition: color 0.3s ease;
}

.ver-notas:hover {
  color: #00ffff;
  text-shadow: 0 0 6px #00ffff;
}