/* BMI Calculator */

/* ---- Settings Row ---- */
.bmi-settings {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-bottom: 18px;
  align-items: flex-end;
}

.bmi-settings .setting-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.bmi-settings .setting-group > label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.unit-toggle,
.gender-toggle {
  display: inline-flex;
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.unit-btn,
.gender-btn {
  padding: 10px 20px;
  border: none;
  background: var(--color-surface);
  color: var(--color-text-secondary);
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.unit-btn:not(:last-child),
.gender-btn:not(:last-child) {
  border-right: 1px solid var(--color-border);
}

.unit-btn:hover,
.gender-btn:hover {
  background: var(--color-surface-hover);
}

.unit-btn.active,
.gender-btn.active {
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
}

/* ---- Form Layout ---- */
.bmi-form {
  margin-bottom: 24px;
}

/* ---- Inputs (match calculator-shared sizing) ---- */
.bmi-inputs {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.bmi-inputs .input-group {
  flex: 1;
  min-width: 160px;
}

/* Standard inputs inside the form */
.bmi-inputs input[type="number"] {
  width: 100%;
  min-height: 46px;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.98rem;
  color: var(--color-text);
  background: var(--color-surface);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  -moz-appearance: textfield;
}

.bmi-inputs input[type="number"]:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.bmi-inputs input[type="number"]::-webkit-inner-spin-button,
.bmi-inputs input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* ---- Height dual inputs ---- */
.height-dual {
  display: flex;
  gap: 8px;
}

.height-field {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
}

.height-field input {
  width: 100%;
}

.height-suffix {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.bmi-calc-btn {
  width: auto;
}

/* ---- Results ---- */
.bmi-results {
  display: none;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border-light);
}

.bmi-results.visible {
  display: block;
}

/* ---- BMI Value Card ---- */
.bmi-value-card {
  text-align: center;
  padding: 28px 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
}

.bmi-number {
  font-family: var(--font-mono);
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.1;
  transition: color 0.2s;
}

.bmi-label {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-top: 4px;
}

.bmi-category {
  display: inline-block;
  margin-top: 10px;
  padding: 5px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: background 0.2s, color 0.2s;
}

/* Category colors */
.bmi-number[data-cat="underweight"],
.bmi-category[data-cat="underweight"] { color: #3b5bdb; }
.bmi-category[data-cat="underweight"] { background: #edf2ff; }

.bmi-number[data-cat="normal"],
.bmi-category[data-cat="normal"] { color: #10b981; }
.bmi-category[data-cat="normal"] { background: #ecfdf5; }

.bmi-number[data-cat="overweight"],
.bmi-category[data-cat="overweight"] { color: #f97316; }
.bmi-category[data-cat="overweight"] { background: #fff7ed; }

.bmi-number[data-cat="obese1"],
.bmi-category[data-cat="obese1"] { color: #ec4899; }
.bmi-category[data-cat="obese1"] { background: #fdf2f8; }

.bmi-number[data-cat="obese2"],
.bmi-category[data-cat="obese2"] { color: #ef4444; }
.bmi-category[data-cat="obese2"] { background: #fef2f2; }

.bmi-number[data-cat="obese3"],
.bmi-category[data-cat="obese3"] { color: #ef4444; }
.bmi-category[data-cat="obese3"] { background: #fef2f2; }

/* ---- Visual Scale ---- */
.bmi-scale-container {
  position: relative;
  margin-bottom: 24px;
  padding: 0 4px;
}

.bmi-scale {
  display: flex;
  height: 14px;
  border-radius: 7px;
  overflow: hidden;
}

.bmi-segment[data-cat="underweight"] { background: #3b5bdb; }
.bmi-segment[data-cat="normal"]      { background: #10b981; }
.bmi-segment[data-cat="overweight"]  { background: #f97316; }
.bmi-segment[data-cat="obese1"]      { background: #ec4899; }
.bmi-segment[data-cat="obese2"]      { background: #ef4444; }
.bmi-segment[data-cat="obese3"]      { background: #dc2626; }

.bmi-marker {
  position: absolute;
  top: -4px;
  width: 4px;
  height: 22px;
  background: var(--color-text);
  border-radius: 2px;
  transition: left 0.4s ease;
  display: none;
  box-shadow: 0 1px 4px rgba(0,0,0,0.25);
}

.bmi-marker.visible {
  display: block;
}

.bmi-scale-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 6px;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-weight: 600;
}

/* ---- Info Grid ---- */
.bmi-info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

.bmi-info-card {
  padding: 14px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  text-align: center;
}

.bmi-info-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}

.bmi-info-value {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
}

/* ---- Legend ---- */
.bmi-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  padding: 14px 16px;
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
}

.bmi-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.bmi-legend-item[data-cat="underweight"] .legend-dot { background: #3b5bdb; }
.bmi-legend-item[data-cat="normal"] .legend-dot      { background: #10b981; }
.bmi-legend-item[data-cat="overweight"] .legend-dot   { background: #f97316; }
.bmi-legend-item[data-cat="obese1"] .legend-dot       { background: #ec4899; }
.bmi-legend-item[data-cat="obese2"] .legend-dot       { background: #ef4444; }
.bmi-legend-item[data-cat="obese3"] .legend-dot       { background: #dc2626; }

/* ---- Responsive ---- */
@media (max-width: 600px) {
  .bmi-settings {
    flex-direction: column;
    gap: 12px;
    align-items: stretch;
  }

  .unit-toggle,
  .gender-toggle {
    width: 100%;
  }

  .unit-btn,
  .gender-btn {
    flex: 1;
    text-align: center;
  }

  .bmi-inputs {
    flex-direction: column;
  }

  .bmi-inputs .input-group {
    min-width: 0;
  }

  .bmi-number {
    font-size: 2.4rem;
  }

  .bmi-info-grid {
    grid-template-columns: 1fr;
  }

  .bmi-legend {
    flex-direction: column;
    gap: 6px;
  }
}