.umfc-calculator {
  margin: 0 0 16px;
  padding: 14px;
  border: 1px solid #d9ded6;
  border-radius: 12px;
  background: linear-gradient(180deg, #f7faf5 0%, #fdfdfb 100%);
}

.umfc-calculator__header h4 {
  margin: 0 0 4px;
  font-size: 18px;
  line-height: 1.2;
}

.umfc-calculator__header p {
  margin: 0 0 10px;
  color: #5f6e5d;
  font-size: 13px;
  line-height: 1.4;
}

.umfc-calculator__shell {
  display: grid;
  gap: 10px;
}

.umfc-calculator__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 20px;
}

.umfc-calculator__grid > *,
.umfc-calculator__summary-grid > *,
.umfc-calculator__details > * {
  width: 100%;
  min-width: 0;
}

.umfc-calculator .form-row {
  float: none;
  width: 100%;
  margin: 0;
}

.woocommerce form .umfc-calculator .form-row {
  margin-bottom: 0;
}

.umfc-calculator .form-row.form-row-last,
.umfc-calculator .form-row.form-row-first {
  width: 100%;
}

.umfc-calculator label,
.umfc-calculator legend {
  display: block;
  margin-bottom: 4px;
  font-weight: 600;
  font-size: 13px;
  line-height: 1.35;
}

.umfc-calculator label[for="umfc_hip_measurement"] {
  display: inline-flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px;
}

.umfc-calculator .umfc-suggested-value {
  color: #6b7767;
  font-weight: 500;
  font-size: 13px;
  line-height: 1.35;
}

.umfc-tooltip {
  position: relative;
  display: inline-flex;
  align-items: center;
  margin-left: 4px;
}

.umfc-tooltip__toggle,
.umfc-tooltip__close {
  padding: 0;
  border: 0;
  background: none;
  color: #0a87d8;
  font: inherit;
  line-height: 1;
  text-decoration: underline;
  cursor: pointer;
}

.umfc-tooltip__toggle {
  font-weight: 500;
}

.umfc-tooltip__panel {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  z-index: 20;
  width: 280px;
  max-width: min(280px, calc(100vw - 32px));
  padding: 16px 18px;
  border: 1px solid #d5dbd2;
  background: #ffffff;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  box-sizing: border-box;
  overflow-wrap: break-word;
}

.umfc-tooltip--right .umfc-tooltip__panel {
  left: auto;
  right: 0;
}

.umfc-calculator .form-row.form-row-first .umfc-tooltip__panel,
.umfc-calculator .form-row.form-row-last .umfc-tooltip__panel {
  left: auto;
  right: 0;
}

@media (max-width: 767px) {
  .umfc-tooltip__panel,
  .umfc-tooltip--right .umfc-tooltip__panel,
  .umfc-calculator .form-row.form-row-first .umfc-tooltip__panel,
  .umfc-calculator .form-row.form-row-last .umfc-tooltip__panel {
    left: 0;
    right: auto;
    width: min(280px, calc(100vw - 32px));
  }
}

.umfc-tooltip__content {
  display: block;
  margin-bottom: 12px;
  color: #4c5750;
  font-weight: 400;
  line-height: 1.45;
}

.umfc-calculator input[type="number"],
.umfc-calculator select {
  width: 100%;
  min-height: 38px;
  padding: 6px 10px;
}

.umfc-calculator__field-group {
  padding: 0;
  border: 0;
}

.umfc-calculator__field-group label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0 10px 0 0;
  font-weight: 500;
  font-size: 13px;
}

.umfc-calculator__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}

.umfc-calculator__message {
  margin: 0;
  color: #466243;
  font-size: 13px;
  line-height: 1.35;
}

.umfc-calculator__message.is-error {
  color: #a52828;
}

.umfc-calculator__results {
  display: grid;
  gap: 10px;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid #e1e6df;
}

.umfc-calculator__summary-grid,
.umfc-calculator__details {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 20px;
}

.umfc-calculator__result,
.umfc-calculator__detail {
  padding: 8px 10px;
  border-radius: 8px;
  background: #ffffff;
  border: 1px solid #e2e8de;
}

.umfc-calculator__result span,
.umfc-calculator__detail span {
  display: block;
  margin-bottom: 2px;
  color: #6b7767;
  font-size: 12px;
}

.umfc-calculator__result strong,
.umfc-calculator__detail strong {
  font-size: 15px;
  line-height: 1.3;
}

@media (max-width: 767px) {
  .umfc-calculator__grid,
  .umfc-calculator__summary-grid,
  .umfc-calculator__details {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .umfc-calculator__actions {
    flex-direction: column;
    align-items: stretch;
  }
}