/* ===== RESET GENERAL ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  background-color: #f0f4ff;
  color: #000;
}

/* ===== HEADER ===== */
header {
  width: 100%;
  background-color: #0047ab; /* Azul tuyo */
  color: #fff;
  text-align: center;
  padding: 15px 0;
  font-size: 22px;
  letter-spacing: 1px;
  font-weight: bold;
  box-shadow: 0 2px 5px rgba(0,0,0,0.3);
}

/* ===== CONTENEDOR CENTRAL ===== */
.container {
  max-width: 1100px;
  margin: 0 auto;
  background-color: #fff;
  border: 1px solid #ccc;
  min-height: calc(100vh - 160px); /* deja espacio para header y footer */
}

/* ===== BOTONES ===== */
.actions {
  text-align: center;
  padding: 10px;
  background-color: #f5f5dc; /* beige suave */
  border-top: 1px solid #ccc;
  border-bottom: 1px solid #ccc;
}

button {
  background-color: #b0b0b0;
  border: 1px solid #888;
  padding: 8px 16px;
  margin: 0 4px;
  cursor: pointer;
  font-weight: bold;
  transition: 0.2s;
}

button:hover {
  background-color: #6c6c6c;
  color: #fff;
}

/* ===== TABLA ===== */
table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 10px;
  text-align: center;
  border: 1px solid #ccc;
}

th {
  background-color: #f04e23; /* rojo-anaranjado */
  color: #fff;
}

tbody tr:nth-child(even) {
  background-color: #d7e8ff;  /* celeste claro */
}

tbody tr:nth-child(odd) {
  background-color: #bcd3f3;  /* celeste medio */
}

/* ===== MODAL ===== */
.ventanaModalApagado {
  visibility: hidden;
}

.ventanaModalPrendido {
  visibility: visible;
  position: fixed;
  inset: 0;
  background-color: rgba(0,0,0,0.4);
  display: flex;
  justify-content: center;
  align-items: center;
}

.modal-content {
  background-color: #f5f5dc; /* beige */
  border: 2px solid #444;
  padding: 20px;
  width: 450px;
  box-shadow: 3px 3px 10px rgba(0,0,0,0.5);
  position: relative;
}

#cerrarModal {
  position: absolute;
  right: 20px;
  top: 10px;
  font-size: 20px;
  cursor: pointer;
  color: #333;
}

/* ===== FORMULARIO ===== */
form label {
  display: block;
  margin: 8px 0 4px;
  font-weight: bold;
}

input, select {
  width: 100%;
  padding: 6px;
  border: 1px solid #999;
  box-sizing: border-box;
}

/* ===== FOOTER ===== */
footer {
  width: 100%;
  background-color: #0047ab; /* igual que header */
  color: #fff;
  text-align: center;
  padding: 15px 0;
  font-size: 16px;
  letter-spacing: 0.5px;
  box-shadow: 0 -2px 5px rgba(0,0,0,0.3);
}

/* ===== RESPONSIVE ===== */
.hidden-sm {}
@media (max-width: 650px) {
  .hidden-sm { display: none; }
}