/* ==========================================================
   Hi BodyMate — Calculator Styles
   ========================================================== */

/* ----------------------------------------------------------
   Calc Container (wraps switch + tabs + box)
   ---------------------------------------------------------- */
.calc-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

/* ----------------------------------------------------------
   Unit Switch
   ---------------------------------------------------------- */
.unit-switch-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.unit-switch-group {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* ----------------------------------------------------------
   Global gender toggle
   ---------------------------------------------------------- */
.gender-global {
  display: flex;
  gap: var(--space-1);
}

.gender-global-btn {
  font-size: var(--text-sm);
  font-weight: 600;
  padding: 4px var(--space-4);
  border-radius: var(--radius-full);
  border: 1.5px solid rgba(0,0,0,0.15);
  background: none;
  color: var(--color-h4);
  cursor: pointer;
  transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast);
}

.gender-global-btn.is-active {
  background-color: var(--color-brand-teal);
  border-color: var(--color-brand-teal);
  color: #fff;
}

.gender-global-btn:not(.is-active):hover {
  border-color: var(--color-brand-teal);
  color: var(--color-brand-teal);
}

/* Hide per-calculator gender fieldsets — radios stay in DOM for calc scripts */
.gender-selector {
  display: none;
}

.unit-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-h4);
  transition: color var(--transition-fast);
}

.unit-label.active {
  color: var(--color-brand-teal);
  font-weight: 600;
}

.unit-toggle {
  position: relative;
  width: 48px;
  height: 26px;
  background-color: var(--color-input-bg);
  border-radius: var(--radius-full);
  border: 2px solid var(--color-brand-teal);
  transition: background-color var(--transition-normal);
  flex-shrink: 0;
}

.unit-toggle::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  background-color: var(--color-brand-teal);
  border-radius: 50%;
  transition: transform var(--transition-normal);
}

.unit-toggle.is-metric::after {
  transform: translateX(22px);
}

/* ----------------------------------------------------------
   Calculator Tabs (botões independentes)
   ---------------------------------------------------------- */
.calc-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.calc-tab {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  border: 2px solid transparent;
  opacity: 0.65;
  transition: opacity var(--transition-fast), transform var(--transition-fast),
              border-color var(--transition-fast), box-shadow var(--transition-fast);
  white-space: nowrap;
}

.calc-tab:hover  { opacity: 0.85; transform: translateY(-1px); }
.calc-tab.is-active {
  opacity: 1;
  transform: translateY(-2px);
  border-color: rgba(0,0,0,0.15);
  box-shadow: var(--shadow-md);
}

/* Tab colors */
.calc-tab[data-tab="bmi"]    { background: #DCFCE7; color: #166534; }
.calc-tab[data-tab="usnavy"] { background: #1E3A8A; color: #ffffff; }
.calc-tab[data-tab="bai"]    { background: #581C87; color: #ffffff; }
.calc-tab[data-tab="whtr"]   { background: #FFEDD5; color: #9a3412; }
.calc-tab[data-tab="whr"]    { background: #FFE4E6; color: #9f1239; }

.tab-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: currentColor;
  opacity: 0.7;
}

/* ----------------------------------------------------------
   Calculator Box (white card)
   ---------------------------------------------------------- */
.calc-box {
  background-color: var(--color-bg2);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-calc);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.calc-heading { margin-bottom: var(--space-1); }
.calc-heading h2 { font-size: var(--text-2xl); }
.calc-heading p  { font-size: var(--text-sm); margin: 0; }

/* ----------------------------------------------------------
   Panels (show/hide per tab)
   ---------------------------------------------------------- */
.calc-panel        { display: none; }
.calc-panel.is-active { display: block; }

/* ----------------------------------------------------------
   Form
   ---------------------------------------------------------- */
.calc-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

/* Imperial/Metric field visibility */
.calc-container .metric-fields    { display: none; }
.calc-container.is-metric .imperial-fields { display: none; }
.calc-container.is-metric .metric-fields   { display: block; }

.input-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.input-group label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-h4);
}

.input-field {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-input-bg);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  color: var(--color-h2);
  font-weight: 700;
  transition: border-color var(--transition-fast);
  appearance: none;
}

.input-field::placeholder {
  color: rgba(0, 173, 145, 0.35);
  font-weight: 400;
}

.input-field:focus {
  outline: none;
  border-color: var(--color-brand-teal);
}

.input-field.is-error {
  border-color: #ef4444;
  background-color: #fef2f2;
}

/* Auto-filled from another calculator */
.input-field.field-autofilled {
  animation: autofillPulse 1.2s ease forwards;
}

@keyframes autofillPulse {
  0%   { border-color: var(--color-brand-teal); background-color: #ccfbf1; }
  70%  { border-color: var(--color-brand-teal); background-color: #ccfbf1; }
  100% { border-color: transparent;             background-color: var(--color-input-bg); }
}

/* ----------------------------------------------------------
   Gender Selector
   ---------------------------------------------------------- */
.gender-selector {
  display: flex;
  gap: var(--space-3);
}

.gender-option {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-h4);
  cursor: pointer;
}

.gender-option input[type="radio"] { accent-color: var(--color-brand-teal); }

/* ----------------------------------------------------------
   Error message
   ---------------------------------------------------------- */
.field-error {
  font-size: var(--text-xs);
  color: #ef4444;
  margin-top: var(--space-1);
}

/* ----------------------------------------------------------
   Calculate Button
   ---------------------------------------------------------- */
.calc-btn {
  width: 100%;
  padding: var(--space-4);
  background-color: var(--color-btn-calc);
  color: var(--color-btn-calc-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--radius-lg);
  border: none;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
  margin-top: var(--space-2);
}

.calc-btn:hover  { background-color: #009988; transform: translateY(-1px); }
.calc-btn:active { transform: translateY(0); }

/* ----------------------------------------------------------
   Result Card
   ---------------------------------------------------------- */
.calc-result {
  display: none;
  padding: var(--space-5);
  background-color: var(--color-bg1);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-brand-teal);
  animation: fadeIn 0.3s ease;
}

.calc-result.is-visible { display: block; }

.result-value {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-h2);
  line-height: 1;
}

.result-unit {
  font-size: var(--text-sm);
  color: var(--color-h4);
  margin-left: var(--space-1);
}

.result-category {
  display: inline-block;
  margin-top: var(--space-2);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ----------------------------------------------------------
   Responsive
   ---------------------------------------------------------- */
@media (max-width: 640px) {
  .calc-box  { padding: var(--space-5); }
  .input-row { grid-template-columns: 1fr; }
}

@media (max-width: 400px) {
  .calc-tab  { font-size: var(--text-xs); padding: var(--space-2) var(--space-3); }
  .calc-tabs { gap: var(--space-1); }
  .calc-box  { padding: var(--space-4); border-radius: var(--radius-lg); }
}