/*
  OSIFIT — Estilos compartidos de las páginas de calculadoras.
  UI tonta: solo presenta datos y captura input, la lógica vive en calc-engine.js.
*/

.calc-shell {
  max-width: 720px;
  margin: 0 auto;
}

.calc-intro {
  margin-bottom: var(--sp-lg);
}

.calc-card {
  background: var(--bg-card);
  border: 1px solid var(--line-light);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-card);
  padding: var(--sp-lg);
}

.form-group {
  margin-bottom: var(--sp-sm);
}

.form-group label {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--ink-soft);
  margin-bottom: var(--sp-2xs);
}

.form-group input[type="number"],
.form-group select {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: var(--r-sm);
  border: 1.5px solid var(--line-light);
  background: var(--bg-light);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color var(--dur-fast) var(--ease-out);
}

.form-group input[type="number"]:focus,
.form-group select:focus {
  border-color: var(--accent);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-sm);
}

@media (max-width: 560px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.segmented {
  display: flex;
  gap: var(--sp-2xs);
}

.segmented input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.segmented label {
  flex: 1;
  text-align: center;
  padding: 0.75rem;
  border-radius: var(--r-sm);
  border: 1.5px solid var(--line-light);
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--ink-soft);
  transition: background-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}

.segmented input:checked + label {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--paper);
}

.method-fields {
  display: none;
}

.method-fields.is-active {
  display: block;
}

.calc-result {
  margin-top: var(--sp-md);
  padding: var(--sp-md);
  border-radius: var(--r-md);
  background: var(--bg-deep);
  color: var(--paper);
  text-align: center;
  display: none;
}

.calc-result.is-visible {
  display: block;
  animation: result-in var(--dur-slow) var(--ease-out);
}

@keyframes result-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.calc-result__value {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 5vw, 3rem);
  color: var(--accent-bright);
}

.calc-result__label {
  font-size: 0.9rem;
  color: var(--paper-soft);
  margin-top: var(--sp-2xs);
}

.calc-result__breakdown {
  margin-top: var(--sp-sm);
  display: flex;
  justify-content: center;
  gap: var(--sp-md);
  flex-wrap: wrap;
}

.calc-result__breakdown div {
  text-align: center;
}

.calc-result__breakdown strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--paper);
}

.calc-result__breakdown span {
  font-size: 0.75rem;
  color: var(--paper-soft);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.calc-actions {
  display: flex;
  gap: var(--sp-sm);
  justify-content: center;
  margin-top: var(--sp-md);
  flex-wrap: wrap;
}

.calc-error {
  display: none;
  margin-top: var(--sp-sm);
  padding: var(--sp-sm);
  border-radius: var(--r-sm);
  background: rgba(191, 10, 48, 0.08);
  color: #8a1f2b;
  font-size: 0.9rem;
}

.calc-error.is-visible {
  display: block;
  animation: calc-error-in var(--dur-fast) var(--ease-out);
}

@keyframes calc-error-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.calc-hub-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-sm);
}

@media (max-width: 900px) {
  .calc-hub-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .calc-hub-grid {
    grid-template-columns: 1fr;
  }
}

.calc-tile {
  background: var(--bg-card);
  border: 1px solid var(--line-light);
  border-radius: var(--r-lg);
  padding: var(--sp-md);
  box-shadow: var(--shadow-card);
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 180px;
}

.calc-tile:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lift);
}

.calc-tile h3 {
  font-size: 1.4rem;
}

.calc-tile p {
  color: var(--ink-soft);
  font-size: 0.9rem;
  margin-top: var(--sp-2xs);
}

.calc-tile .plus {
  align-self: flex-end;
  color: var(--accent);
  font-size: 1.5rem;
}