.calc-box {
  background: white;
  border-radius: 32px;
  padding: 48px 52px;
  box-shadow: 0 8px 40px rgba(0, 35, 39, 0.10);
  max-width: 680px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.calc-gender-row {
  display: flex;
  gap: 10px;
  margin-bottom: 28px;
}

.calc-gender-btn {
  flex: 1;
  padding: 11px 16px;
  border: 2px solid #D8EEE9;
  border-radius: 20px;
  background: white;
  font-size: 0.88rem;
  font-weight: 600;
  color: #4A6B70;
  cursor: pointer;
  transition: all 0.18s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
}

.calc-gender-btn.active {
  border-color: #3753F0;
  color: #3753F0;
  background: #F0F2FF;
}

.calc-weights-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 28px;
}

.calc-field>label {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #4A6B70;
  margin-bottom: 8px;
}

.calc-field-inner {
  display: flex;
  align-items: center;
  border: 2px solid #EAF5F2;
  border-radius: 20px;
  background: #F8F9FF;
  transition: border-color 0.2s;
  overflow: hidden;
}

.calc-field-inner input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 1.55rem;
  font-weight: 800;
  color: #3753F0;
  padding: 12px 14px;
  outline: none;
  box-shadow: none;
  outline: none;
  width: 100%;
  border: none !important;
  text-align: right;
  font-family: inherit;
  -moz-appearance: textfield;
}

.calc-field-inner input::-webkit-inner-spin-button,
.calc-field-inner input::-webkit-outer-spin-button {
  -webkit-appearance: none;
}

.calc-field-inner span {
  font-size: 0.88rem;
  font-weight: 600;
  color: #4A6B70;
  padding: 0 14px 0 4px;
}

.calc-result-block {
  display: none;
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid #EAF5F2;
}

.calc-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(135deg, #E0F7F1 0%, #E8ECFE 100%);
  border-radius: 20px;
  padding: 14px 20px;
  margin-bottom: 20px;
  font-size: 0.875rem;
  color: #4A6B70;
  border: 1px solid rgba(0, 188, 142, 0.14);
}

.calc-summary strong {
  color: #002327;
  font-size: 1rem;
}

.calc-timeframe-box {
  text-align: center;
  background: linear-gradient(135deg, #EEF0FF 0%, #E0F7F1 100%);
  border-radius: 32px;
  padding: 28px 24px 24px;
  margin-bottom: 18px;
  border: 1px solid rgba(55, 83, 240, 0.10);
}

.calc-tf-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #3753F0;
  margin-bottom: 8px;
}

.calc-tf-value {
  font-size: 2.6rem;
  font-weight: 800;
  color: #3753F0;
  line-height: 1;
  margin-bottom: 6px;
}

.calc-tf-sub {
  font-size: 0.8rem;
  color: #4A6B70;
}

.calc-coaching-note {
  background: rgba(0, 188, 142, 0.07);
  border: 1px solid rgba(0, 188, 142, 0.22);
  border-radius: 20px;
  padding: 16px 18px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 14px;
}

.calc-coaching-note svg {
  flex-shrink: 0;
  color: #00A37C;
  margin-top: 1px;
}

.calc-coaching-note p {
  font-size: 0.82rem;
  color: #002327;
  line-height: 1.6;
  margin: 0;
}

.calc-coaching-note strong {
  color: #00A37C;
}

.calc-error-msg {
  display: none;
  text-align: center;
  color: #E05252;
  font-size: 0.84rem;
  padding: 16px 0 8px;
}

.calc-disclaimer {
  font-size: 0.69rem;
  color: #4A6B70;
  line-height: 1.65;
  text-align: center;
  font-style: italic;
}

@media (max-width: 640px) {
  .calc-box {
    padding: 28px 20px;
  }

  .calc-weights-row {
    grid-template-columns: 1fr;
  }
}