/* ======== FONDO ANIMADO ======== */
#bgCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: #f9f9f9;
}

/* ======== CONTENIDO ======== */
body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  color: #111;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 40px 20px;
  min-height: 100vh;
}

.titulo {
  font-size: 2.4rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 30px;
  color: #111;
}

/* ======== CARTAS ======== */
.card-custom {
  max-width: 450px;
  border-radius: 15px;
  margin-bottom: 20px;
  background: #fff;
  border: 1px solid #e0e0e0;
  box-shadow: 0 6px 15px rgba(0,0,0,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card-custom:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

/* ======== HEADER DE LAS CARTAS ======== */
.accordion-button {
  font-weight: 600;
  background: #f5f5f5;
  border: none;
  padding: 15px;
  transition: background 0.3s ease;
}

.accordion-button:not(.collapsed) {
  background: #eaeaea;
}

/* ======== CUERPO DEL ACORDEÓN ======== */
.accordion-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  justify-content: center;
  background: #fff;
  padding: 18px;
  border-top: 1px solid #eee;
}

/* ======== BOTONES INTERNOS ======== */
.btn-custom {
  border-radius: 8px;
  padding: 10px 20px;
  font-size: 1rem;
  font-weight: 500;
  border: 1px solid #111;
  background: #fff;
  color: #111;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-custom:hover {
  background: #111;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0px 4px 10px rgba(0,0,0,0.15);
}