/* ============================================
   Wapps · tributarias/calculadora-iva/styles.css
   Estilos específicos de esta calculadora.
   ============================================ */

/* ---------- Selector de modo (toggle Sumar/Sacar IVA) ---------- */
.mode-switch {
  display: flex;
  gap: 0;
  background: var(--color-bg-muted);
  padding: 4px;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-5);
}

.mode-btn {
  flex: 1;
  padding: 10px 14px;
  font-size: 0.9rem;
  font-weight: 500;
  background: transparent;
  border: 0;
  border-radius: calc(var(--radius-md) - 4px);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--t-base);
}

.mode-btn:hover { color: var(--color-text); }

.mode-btn.active {
  background: var(--color-bg-elevated);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

@media (max-width: 480px) {
  .mode-btn { font-size: 0.82rem; padding: 8px 10px; }
}

/* ---------- Input con prefijo $ ---------- */
.input-wrapper {
  position: relative;
}

.input-prefix {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  font-size: 1rem;
  pointer-events: none;
  font-variant-numeric: tabular-nums;
}

.calc-input.has-prefix {
  padding-left: 28px;
}

/* Input grande, números legibles */
.iva-calc .calc-input {
  font-size: 1.15rem;
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum";
}

/* ---------- Chips de tarifa ---------- */
.tarifa-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.chip {
  padding: 8px 18px;
  font-size: 0.95rem;
  font-weight: 500;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-strong);
  border-radius: 999px;
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--t-base);
  font-variant-numeric: tabular-nums;
}

.chip:hover {
  border-color: var(--color-primary);
}

.chip.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

/* Tarifa personalizada inline */
.tarifa-custom {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-3);
  max-width: 200px;
  position: relative;
}

.tarifa-custom .calc-input {
  padding-right: 32px;
}

.input-suffix {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
}

/* ---------- Bloque de resultados ---------- */
.result-block {
  margin-top: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg);
}

.result-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border);
}
.result-row:last-child { border-bottom: 0; }

.result-label {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.result-value {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
  transition: color 250ms ease;
}

/* La fila del IVA destacada con acento */
.result-row-accent {
  background: rgba(244, 162, 97, 0.06);
}
.result-row-accent .result-value {
  color: var(--color-accent-dark);
}

/* La fila del total: más grande, color primario */
.result-row-total {
  background: var(--color-bg-muted);
  padding: var(--space-5);
}
.result-row-total .result-label {
  font-weight: 500;
  color: var(--color-text);
}
.result-row-total .result-value {
  font-size: 1.85rem;
  color: var(--color-primary);
}

/* Flash sutil cuando el valor cambia (lo activamos por JS) */
.result-value.flash {
  color: var(--color-primary-light);
}

/* ---------- Nota de fórmula ---------- */
.formula-note {
  margin-top: var(--space-4);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: center;
}
.formula-note code {
  background: var(--color-bg-muted);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-text);
}

/* ---------- Botón copiar con estado ---------- */
.btn .btn-success {
  color: var(--color-primary);
}

/* ---------- Tarjetas de tarifa explicadas ---------- */
.tarifa-explainer {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

@media (min-width: 700px) {
  .tarifa-explainer { grid-template-columns: repeat(3, 1fr); }
}

.tarifa-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}

.tarifa-card-rate {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 500;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-3);
  font-variant-numeric: tabular-nums;
}

.tarifa-card h3 {
  font-size: 1.1rem !important;
  margin-bottom: var(--space-2) !important;
}

.tarifa-card p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* ---------- Ejemplo paso a paso ---------- */
.example-steps {
  counter-reset: step;
  list-style: none;
  padding: 0;
  margin: var(--space-4) 0;
}

.example-steps li {
  counter-increment: step;
  position: relative;
  padding: var(--space-3) 0 var(--space-3) var(--space-8);
  border-bottom: 1px solid var(--color-border);
}
.example-steps li:last-child { border-bottom: 0; }

.example-steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: var(--space-3);
  width: 32px;
  height: 32px;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  font-family: var(--font-display);
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
}

/* ---------- Feedback ---------- */
.feedback-prompt {
  font-weight: 500;
  margin-bottom: var(--space-3);
}

.feedback-buttons {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
}

.feedback-thanks {
  color: var(--color-primary);
  font-weight: 500;
  margin-top: var(--space-3);
}