@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Rubik+Doodle+Shadow&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Bad+Script&display=swap');

body {
  margin: 0;
  background: linear-gradient(to bottom,#212256,#16163e,#423f6a);
  color: white;
  font-family: 'Poppins', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
}

.aplicacion {
  min-height: 100vh;
  padding: 2rem;
  max-width: 1200px;
  margin: auto;
}

h1 {
  text-align: center;
  font-family: 'Playfair Display', 'Rubik Doodle Shadow', serif;
  font-weight: 700;
  font-size: 3.5rem;
  padding: auto;
}
h2 {
  text-align: center;
  font-family: 'Poppins', 'Bad Script', sans-serif;
  font-weight: 600;
  font-size: 2rem;
  padding: auto;
}
p, #interruptorFormato {
  display: inline-block;
  vertical-align: middle;
  text-align: left;
  font-family: 'Poppins', sans-serif;
  font-size: 1rem;
}

p {
  margin-right: 20px;
  padding-bottom: 8px;
}

label {
  font-family: 'Poppins', sans-serif;
  padding-top: 8px;
}

.panel-controles {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin: 2rem 0;
}

#contenedorPaleta {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 1.5rem;
}

#contenedorPaleta div {
  padding: 1rem;
  border-radius: 12px;
  border: 5px solid rgba(0, 0, 0, 0.25);
  min-height: 120px;
  display: flex;
  align-items: flex-end;
  opacity: 0;
  transform: translateY(8px);
}

/* Animaciones: aparecer y desaparecer */
#contenedorPaleta div.mostrar {
  animation: aparecer 420ms cubic-bezier(.2,.9,.2,1) forwards;
}

@keyframes aparecer {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

#contenedorPaleta div.ocultar {
  animation: desaparecer 320ms ease forwards;
}

@keyframes desaparecer {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(8px); }
}

/* Botón generar (estilo simplificado) */
#botonGenerar {
  padding: 0.5rem 0.9rem;
  background: #ff6b6b;
  border: none;
  border-radius: 6px;
  color: #fff;
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0,0,0,0.12);
  transition: background 150ms ease, transform 120ms ease, box-shadow 120ms ease;
}
#botonGenerar:hover { background: #ff5a5a; transform: translateY(-1px); box-shadow: 0 4px 10px rgba(0,0,0,0.14); }
#botonGenerar:active { transform: translateY(0); }

/* Checkbox: mejorada la apariencia nativa (no es toggle) */
.interruptor-formato {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-family: 'Poppins', sans-serif;
  color: #fff;
  font-size: 1rem;
}

#interruptorFormato {
  width: 18px;
  height: 18px;
  margin: 0;
  accent-color: #06b6d4;
  transform: scale(1.2);
  transition: box-shadow 140ms ease, transform 120ms ease;
  cursor: pointer;
}

#interruptorFormato:focus {
  box-shadow: 0 0 0 4px rgba(6,182,212,0.16);
  border-radius: 4px;
}

#interruptorFormato:hover {
  transform: scale(1.12);
}