body {
  font-family: 'Inter', sans-serif;
  background: #f2f4f8;
  color: #212529;
}

h2, h3 {
  font-weight: 700;
  color: #003366;
}

p {
  color: #6c757d;
  font-weight: 400;
}

/* Tarjetas estilo glass */
.card {
  background: rgba(255, 255, 255, 0.75);
  border-radius: 18px;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(200, 200, 255, 0.1);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
  transform: scale(1.015);
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.12);
}

/* Botones refinados */
.btn-outline-success, .btn-outline-primary {
  border-radius: 30px;
  padding: 6px 20px;
  font-weight: 500;
  letter-spacing: 0.4px;
  transition: all 0.2s ease-in-out;
}

.btn-outline-success:hover, .btn-outline-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 123, 255, 0.2);
}

/* Línea de tiempo */
#lineaTiempo .step {
  border-radius: 50px;
  background-color: #ffffff;
  border: 1px solid #dee2e6;
  padding: 6px 14px;
  font-size: 0.9rem;
  color: #003366;
  box-shadow: 0 2px 6px rgba(0,0,0,0.04);
  transition: all 0.2s ease-in-out;
}

#lineaTiempo .step:hover {
  background-color: #eaf4ff;
  transform: scale(1.05);
}

#lineaTiempo .step.active {
  background-color: #b6e0ff;
  font-weight: 600;
}

/* Piscina */
#piscinaContainer {
  background: #eaf6ff;
  border-radius: 16px;
  padding: 20px;
  box-shadow: inset 0 0 0 1px #cfe2f3;
}

/* Audio player */
#audioPlayer {
  border-radius: 10px;
  width: 100%;
  max-width: 500px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* Ajustes generales de secciones */
.container {
  padding-top: 4rem;
  padding-bottom: 4rem;
}

.card-text {
  font-size: 0.95rem;
}

select.form-select {
  padding: 6px 10px;
  font-size: 0.9rem;
}

/* Suavidad */
.fade-in {
  animation: fadeIn 0.4s ease-in-out;
}

@keyframes fadeIn {
  0% { opacity: 0; transform: translateY(10px); }
  100% { opacity: 1; transform: translateY(0); }
}