/* ================================================================
   FILTROS ANZA — CALCULADORA DE COEFICIENTE DE FLUJO
   Cargar después de css/anza-recursos.css.
   ================================================================ */

.anza-calculator-page {
  background: #f7f9fb;
}

.anza-calculator-hero {
  min-height: 560px;
}

.anza-calculator-hero h1 {
  max-width: 980px;
}

.anza-calculator-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, .75fr);
  gap: 30px;
  align-items: start;
}

.anza-calculator-card,
.anza-calculator-result {
  background: #fff;
  border: 1px solid #d7e1e8;
  border-radius: 10px;
  box-shadow: 0 14px 38px rgba(14, 35, 50, .08);
}

.anza-calculator-card {
  padding: 34px;
}

.anza-calculator-result {
  position: sticky;
  top: 112px;
  overflow: hidden;
}

.anza-calculator-result-head {
  padding: 29px 30px 25px;
  color: #fff;
  background: linear-gradient(135deg, #0e2332 0%, #315066 100%);
}

.anza-calculator-result-label {
  display: block;
  margin-bottom: 11px;
  color: #b8e1ff;
  font-family: "Montserrat", sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
}

.anza-calculator-result-value {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  align-items: baseline;
  min-height: 58px;
}

.anza-calculator-result-number {
  color: #fff;
  font-family: "Montserrat", sans-serif;
  font-size: clamp(38px, 5vw, 57px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.04em;
}

.anza-calculator-result-unit {
  color: rgba(255, 255, 255, .72);
  font-size: 14px;
  font-weight: 700;
}

.anza-calculator-result-body {
  padding: 27px 30px 30px;
}

.anza-calculator-status {
  margin: 0 0 20px;
  color: #526978;
  font-size: 14px;
  line-height: 1.65;
}

.anza-calculator-result-list {
  margin: 0 0 23px;
  padding: 0;
  list-style: none;
}

.anza-calculator-result-list li {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 11px 0;
  border-bottom: 1px solid #e3e9ed;
  color: #526978;
  font-size: 13px;
}

.anza-calculator-result-list strong {
  color: #0e2332;
  text-align: right;
}

.anza-calculator-result-actions {
  display: grid;
  gap: 10px;
}

.anza-calculator-result-actions .btn {
  width: 100%;
  min-width: 0;
}

.anza-calculator-copy {
  color: #315066 !important;
  background: #fff;
  border: 1px solid #b4c2cc;
}

.anza-calculator-copy:hover,
.anza-calculator-copy:focus {
  color: #0e2332 !important;
  background: #edf4f8;
  border-color: #688599;
}

.anza-calculator-whatsapp[aria-disabled="true"] {
  pointer-events: none;
  opacity: .48;
}

.anza-calculator-intro {
  margin-bottom: 30px;
}

.anza-calculator-intro h2 {
  margin: 0 0 10px;
  color: #0e2332 !important;
  font-family: "Montserrat", sans-serif;
  font-size: 27px;
  font-weight: 700;
  line-height: 1.25;
}

.anza-calculator-intro p {
  margin: 0;
  color: #526978;
  font-size: 14px;
  line-height: 1.7;
}

.anza-calculator-fieldset {
  margin: 0 0 27px;
  padding: 0;
  border: 0;
}

.anza-calculator-legend,
.anza-calculator-label {
  display: block;
  margin: 0 0 9px;
  color: #0e2332;
  font-family: "Montserrat", sans-serif;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.35;
}

.anza-calculator-choice-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.anza-calculator-choice-grid--two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.anza-calculator-choice {
  position: relative;
  margin: 0;
}

.anza-calculator-choice input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.anza-calculator-choice span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 49px;
  padding: 10px 13px;
  color: #3f5666;
  background: #f7f9fb;
  border: 1px solid #d7e1e8;
  border-radius: 6px;
  cursor: pointer;
  font-family: "Montserrat", sans-serif;
  font-size: 12px;
  font-weight: 700;
  text-align: center;
  transition: background-color .18s ease, border-color .18s ease, color .18s ease, box-shadow .18s ease;
}

.anza-calculator-choice input:checked + span {
  color: #fff;
  background: #1d72da;
  border-color: #1d72da;
  box-shadow: 0 6px 15px rgba(29, 114, 218, .2);
}

.anza-calculator-choice input:focus-visible + span {
  outline: 3px solid rgba(29, 114, 218, .3);
  outline-offset: 3px;
}

.anza-calculator-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 19px 18px;
}

.anza-calculator-field--wide {
  grid-column: 1 / -1;
}

.anza-calculator-control {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
}

.anza-calculator-control input,
.anza-calculator-control select,
.anza-calculator-select {
  width: 100%;
  min-height: 50px;
  color: #243746;
  background: #fff;
  border: 1px solid #b4c2cc;
  border-radius: 6px;
  font-family: "Oxygen", sans-serif;
  font-size: 15px;
}

.anza-calculator-control input {
  min-width: 0;
  padding: 11px 13px;
  border-radius: 6px 0 0 6px;
}

.anza-calculator-control select {
  min-width: 92px;
  padding: 10px 32px 10px 12px;
  background-color: #edf3f7;
  border-left: 0;
  border-radius: 0 6px 6px 0;
  font-weight: 700;
}

.anza-calculator-select {
  padding: 10px 38px 10px 13px;
}

.anza-calculator-control input:focus,
.anza-calculator-control select:focus,
.anza-calculator-select:focus {
  position: relative;
  z-index: 1;
  outline: 0;
  border-color: #1d72da;
  box-shadow: 0 0 0 3px rgba(29, 114, 218, .13);
}

.anza-calculator-help {
  display: block;
  margin-top: 7px;
  color: #688599;
  font-size: 11px;
  line-height: 1.45;
}

.anza-calculator-error {
  display: none;
  margin: 22px 0 0;
  padding: 13px 15px;
  color: #8b1e24;
  background: #fff1f2;
  border: 1px solid #f1b9bd;
  border-radius: 6px;
  font-size: 13px;
  line-height: 1.55;
}

.anza-calculator-error.is-visible {
  display: block;
}

.anza-calculator-form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 11px;
  margin-top: 27px;
}

.anza-calculator-form-actions .btn {
  min-width: 185px;
}

.anza-calculator-reset {
  color: #315066 !important;
  background: transparent;
  border: 1px solid #b4c2cc;
}

.anza-calculator-reset:hover,
.anza-calculator-reset:focus {
  color: #0e2332 !important;
  background: #edf3f7;
}

.anza-calculator-mode[hidden],
.anza-calculator-field[hidden] {
  display: none !important;
}

.anza-calculator-note {
  margin-top: 27px;
  padding: 18px 20px;
  color: #3f5666;
  background: #eaf4fc;
  border-left: 4px solid #1d72da;
  border-radius: 0 6px 6px 0;
  font-size: 12px;
  line-height: 1.65;
}

.anza-calculator-note strong {
  color: #0e2332;
}

.anza-formula-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 23px;
}

.anza-formula-card {
  padding: 32px;
  background: #fff;
  border: 1px solid #d7e1e8;
  border-radius: 8px;
  box-shadow: 0 9px 26px rgba(14, 35, 50, .05);
}

.anza-formula-card h3 {
  margin: 0 0 14px;
  color: #0e2332 !important;
  font-family: "Montserrat", sans-serif;
  font-size: 21px;
  font-weight: 700;
}

.anza-formula {
  display: block;
  margin: 18px 0;
  padding: 18px;
  color: #0e2332;
  background: #f1f5f8;
  border-radius: 6px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 23px;
  text-align: center;
}

.anza-formula-card p,
.anza-formula-card li {
  color: #526978;
  font-size: 13px;
  line-height: 1.65;
}

.anza-formula-card ul {
  margin: 0;
  padding-left: 20px;
}

.anza-formula--gas {
  font-size: 17px;
  line-height: 1.45;
}

.anza-calculator-method-note {
  margin: 24px 0;
  padding: 18px 21px;
  color: #526978;
  background: #eef4f7;
  border: 1px solid #d7e1e8;
  border-radius: 7px;
  font-size: 12px;
  line-height: 1.7;
}

.anza-calculator-method-note strong {
  color: #0e2332;
}

.anza-calculator-method-note .anza-calculator-source-link {
  margin-top: 10px;
  margin-right: 14px;
}

.anza-steam-guide {
  margin-top: 48px;
  padding-top: 45px;
  border-top: 1px solid #d7e1e8;
}

.anza-steam-guide .anza-resource-heading h3 {
  margin: 0 0 12px;
  color: #0e2332 !important;
  font-family: "Montserrat", sans-serif;
  font-size: clamp(25px, 3vw, 37px);
  font-weight: 700;
}

.anza-steam-guide-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.anza-calculator-disclaimer {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 27px 29px;
  color: #fff;
  background: #0e2332;
  border-radius: 8px;
}

.anza-calculator-disclaimer .fa {
  flex: 0 0 auto;
  margin-top: 3px;
  color: #b8e1ff;
  font-size: 28px;
}

.anza-calculator-disclaimer h3 {
  margin: 0 0 8px;
  color: #fff !important;
  font-family: "Montserrat", sans-serif;
  font-size: 18px;
  font-weight: 700;
}

.anza-calculator-disclaimer p {
  margin: 0;
  color: rgba(255, 255, 255, .78);
  font-size: 13px;
  line-height: 1.7;
}

.anza-calculator-source-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  color: #1d72da !important;
  font-size: 13px;
  font-weight: 700;
}

@media (max-width: 991.98px) {
  .anza-calculator-shell {
    grid-template-columns: 1fr;
  }

  .anza-calculator-result {
    position: static;
  }
}

@media (max-width: 767.98px) {
  .anza-calculator-card {
    padding: 25px 20px;
  }

  .anza-calculator-choice-grid,
  .anza-calculator-choice-grid--two,
  .anza-calculator-grid,
  .anza-formula-grid,
  .anza-steam-guide-grid {
    grid-template-columns: 1fr;
  }

  .anza-calculator-field--wide {
    grid-column: auto;
  }

  .anza-calculator-form-actions,
  .anza-calculator-form-actions .btn {
    width: 100%;
  }

  .anza-calculator-result-head,
  .anza-calculator-result-body,
  .anza-formula-card {
    padding: 25px 21px;
  }

  .anza-calculator-disclaimer {
    padding: 23px 21px;
  }
}