body {
  font-family: 'Times New Roman', Times, serif, Tahoma, sans-serif, sans-serif;
  font-size: 20px;
  background-color: hsl(330, 68%, 36%);
  margin: 0;
  padding: 0;
  color: #741919;
}
header {

 background-color: hsl(0, 0%, 100%);

  background-size: cover;  
  background-repeat: no-repeat;
  background-position: center;
  color: #741919;
  padding: 2% 0;
  text-align: center;
}
nav {

  padding: 24px;
  text-align: center;
  
  background-image:  url('');;
}

ul.menu {
  list-style: none;
  display: flex;
  flex-direction: row;
  justify-content: center;
  gap: 15px;
  padding: 0;
  margin: 0;
}

ul.menu li {
  display: inline;
    
}

.menu-btn,
button {
  padding: 15px 32px;
  background-color: rgba(77, 113, 167, 0.966);
  
  border: none;
  color: rgb(255, 255, 255);
  font-size: 1rem;
  cursor: pointer;
  border-radius: 6px;
  transition: background-color 0.3s;
}

.menu-btn:hover,
button:hover {
  background-color: #8a5858;
}

form {
  max-width: 500px;
  margin: 30px auto;
  padding: 20px;
  background-color: rgba(128, 162, 214, 0.966);
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

form label {
  display: block;
  margin-top: 15px;
  font-weight: bold;
}

form input,
form select {
  width: 100%;
  padding: 8px;
  margin-top: 5px;
  border-radius: 5px;
  border: 1px solid #ffffff;
}

form button {
  margin-top: 20px;
  width: 100%;
  background-color: #2ee75a;
}

form button:hover {
  background-color: #00ff37;
}

#resultadoLibro {
  max-width: 600px;
  margin: 20px auto;
  background-color: #fff;
  border-radius: 10px;
  padding: 15px;
  box-shadow: 0 0 8px rgba(0,0,0,0.1);
}


.tabla-contenedor {
  max-width: 900px;
  margin: 20px auto;
  overflow-x: auto;
  background: white;
  padding: 15px;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.tabla-registros {
  width: 100%;
  border-collapse: collapse;
  font-family: 'Segoe UI', sans-serif;
  font-size: 16px;
}

.tabla-registros thead {
  background-color: #2c3e50;
  color: white;
}

.tabla-registros th,
.tabla-registros td {
  padding: 12px 15px;
  text-align: center;
  border-bottom: 1px solid #ddd;
}

.tabla-registros tbody tr:hover {
  background-color: #f0f8ff;
}

.tabla-registros tbody tr:last-child td {
  border-bottom: none;
}

.tabla-registros td {
  color: #333;
}


.contenedor-principal {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 20px;
  flex-wrap: wrap;
}

.columna-izquierda,
.columna-derecha {
  flex: 1 1 45%;
  min-width: 300px;
}

.columna-izquierda {
  order: 1;
}

.columna-derecha {
  order: 2;
  text-align: center;
}

/* Sticky lector */
.sticky-lector {
  position: sticky;
  top: 20px;
  align-self: start;
  z-index: 1;
  width:10px ;
    height:10px ;
}

#preview {
  margin:  auto;
  border: 4px solid #000000;
  border-radius: 10px;
}

#mensaje {
  margin-top: 40px;
  font-weight: bold;
}
.svg-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    pointer-events: none;
    overflow: hidden;
    z-index: 0;
    opacity: 0.5;
    
    
}

.content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%); /* 💡 Centro perfecto */
    z-index: 1;
    pointer-events: auto;
    z-index: 1;
}
svg path {
    fill: #750120;
    stroke: #07ebfc;
    stroke-width: 3;
    opacity: 1;
    stroke-dasharray: 3000;
    stroke-dashoffset: 3000;
    animation: draw 6s ease-in-out infinite;
    opacity: 0.5;
}

@keyframes draw {
  0% {
    stroke-dashoffset: 3000;
  }
  40% {
    stroke-dashoffset: 0;
  }
  60% {
    stroke-dashoffset: 0;
  }
  100% {
    stroke-dashoffset: 3000;
  }
}