/* Footer centrado y fijo abajo */
.main-footer {
  width: 100%;
  text-align: center;
  position: fixed;
  left: 0;
  bottom: 0;
  background: var(--primary);
  color: var(--light);
  padding: 0.7rem 0;
  font-size: 1rem;
  box-shadow: 0 -2px 8px rgba(44,62,80,0.07);
  z-index: 10;
}
.main-footer a {
  color: var(--accent);
  text-decoration: none;
  font-weight: bold;
  transition: color 0.2s;
}
.main-footer a:hover {
  color: var(--light);
}
.main-footer svg {
  vertical-align: middle;
  margin-right: 5px;
}
/* Variables de color y tipografía */
:root {
  --primary: #2c3e50;
  --accent:  #e67e22;
  --light:   #ecf0f1;
  --dark:    #34495e;
  --font:    'Segoe UI', Tahoma, sans-serif;
}

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

body {
  font-family: var(--font);
  background-color: var(--light);
  color: var(--dark);
  padding: 2rem;
  line-height: 1.4;
}

h1 {
  color: var(--primary);
  margin-bottom: 1rem;
}

p {
  margin-bottom: 1rem;
}

button {
  background-color: var(--accent);
  color: #fff;
  border: none;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

button:hover {
  background-color: darken(var(--accent), 10%);
}

#output {
  margin-top: 1.5rem;
  padding: 1rem;
  background-color: #fff;
  border: 1px solid var(--primary);
  border-radius: 4px;
  height: 220px;
  overflow-y: auto;
  white-space: pre-wrap;
}

/* Animación de entrada de cada línea */
@keyframes dropIn {
  0% {
    opacity: 0;
    transform: translateY(-5px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

#output div {
  animation: dropIn 0.3s ease;
  margin-bottom: 0.25rem;
}