/* Mobile first: one column, system fonts, no external resources. */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  line-height: 1.55;
  color: #1a1f26;
  background: #f6f7f9;
}

header,
main,
footer {
  max-width: 52rem;
  margin: 0 auto;
  padding: 1rem;
}

header {
  padding-bottom: 0;
}

.site-name {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  font-weight: 700;
}

.site-name a {
  color: inherit;
  text-decoration: none;
}

nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

nav a {
  display: inline-block;
  padding: 0.4rem 0.65rem;
  border: 1px solid #c9d1dc;
  border-radius: 0.4rem;
  background: #fff;
  font-size: 0.92rem;
  text-decoration: none;
}

a {
  color: #0b4f9e;
}

a:hover,
a:focus {
  text-decoration: underline;
}

main {
  background: #fff;
  border: 1px solid #dfe3ea;
  border-radius: 0.6rem;
  margin-top: 1rem;
}

h1 {
  margin: 0 0 0.6rem;
  font-size: 1.55rem;
  line-height: 1.25;
}

h2 {
  margin: 1.8rem 0 0.5rem;
  font-size: 1.25rem;
  line-height: 1.3;
}

h3 {
  margin: 1.4rem 0 0.4rem;
  font-size: 1.08rem;
}

h4 {
  margin: 1rem 0 0.3rem;
  font-size: 1rem;
}

.lead {
  font-size: 1.05rem;
  color: #333c48;
}

.notice {
  margin: 1rem 0;
  padding: 0.75rem 0.9rem;
  border-left: 4px solid #b7791f;
  background: #fff8e6;
}

.notice p {
  margin: 0.3rem 0;
}

form {
  margin: 1rem 0;
}

fieldset {
  margin: 0 0 1rem;
  padding: 0.75rem 0.9rem 0.9rem;
  border: 1px solid #c9d1dc;
  border-radius: 0.5rem;
}

legend {
  padding: 0 0.35rem;
  font-weight: 700;
}

label {
  display: block;
  margin-top: 0.75rem;
  font-weight: 600;
}

label.choice {
  font-weight: 400;
}

label.choice input {
  margin-right: 0.45rem;
}

.hint {
  display: block;
  margin: 0.15rem 0 0;
  font-size: 0.88rem;
  font-weight: 400;
  color: #4d5866;
}

input[type="text"],
input[type="date"],
select {
  display: block;
  width: 100%;
  max-width: 24rem;
  margin-top: 0.25rem;
  padding: 0.55rem 0.6rem;
  border: 1px solid #8a96a6;
  border-radius: 0.4rem;
  font: inherit;
  background: #fff;
  color: inherit;
}

button {
  margin: 0.5rem 0.5rem 0 0;
  padding: 0.65rem 1.1rem;
  border: 1px solid #0b4f9e;
  border-radius: 0.4rem;
  background: #0b4f9e;
  color: #fff;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

button.secondary {
  background: #fff;
  color: #0b4f9e;
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

input:focus,
select:focus,
button:focus,
a:focus,
summary:focus {
  outline: 3px solid #f0b429;
  outline-offset: 2px;
}

.table-wrap {
  overflow-x: auto;
  margin: 0.75rem 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

caption {
  padding: 0.4rem 0;
  font-weight: 700;
  text-align: left;
}

th,
td {
  padding: 0.5rem 0.55rem;
  border: 1px solid #d5dbe4;
  text-align: left;
  vertical-align: top;
}

th {
  background: #eef1f6;
}

td.num {
  text-align: right;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

tr.total td {
  font-weight: 700;
  background: #f1f6ee;
}

.dato {
  margin: 0.3rem 0;
}

.error {
  padding: 0.65rem 0.8rem;
  border-left: 4px solid #b42318;
  background: #fdecea;
}

.note,
.notas {
  font-size: 0.92rem;
  color: #3c4654;
}

.notas {
  padding-left: 1.2rem;
}

.formula {
  padding: 0.55rem 0.7rem;
  background: #f1f3f7;
  border-radius: 0.4rem;
  overflow-x: auto;
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 0.92rem;
}

.price {
  font-size: 1.3rem;
  font-weight: 700;
}

.buy {
  margin: 1rem 0;
  padding: 0.85rem 1rem;
  border: 2px dashed #0b4f9e;
  border-radius: 0.5rem;
  background: #f1f6fd;
}

details {
  margin: 0.6rem 0;
  padding: 0.55rem 0.8rem;
  border: 1px solid #d5dbe4;
  border-radius: 0.45rem;
}

summary {
  font-weight: 700;
  cursor: pointer;
}

.print-legal {
  margin-top: 1rem;
  padding: 0.6rem 0.8rem;
  border: 1px solid #c9d1dc;
  font-size: 0.88rem;
}

.print-legal p {
  margin: 0.25rem 0;
}

footer {
  font-size: 0.88rem;
  color: #3c4654;
}

footer p {
  margin: 0.35rem 0;
}

.disclaimer {
  font-weight: 600;
}

@media (min-width: 40rem) {
  header,
  main,
  footer {
    padding: 1.25rem 1.5rem;
  }

  header {
    padding-bottom: 0;
  }

  h1 {
    font-size: 1.9rem;
  }

  .campos {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 1.25rem;
  }
}

@media print {
  body {
    background: #fff;
  }

  header,
  form,
  .no-print,
  button {
    display: none;
  }

  main {
    border: 0;
    margin: 0;
    padding: 0;
  }

  .table-wrap {
    overflow: visible;
  }

  table {
    font-size: 0.8rem;
  }
}