/* Cost Calculator / Quiz */
.calc-section {
  padding: 60px 0;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.calc-container {
  max-width: 700px;
  margin: 0 auto;
  padding: 40px;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

.calc-header {
  text-align: center;
  margin-bottom: 32px;
}

.calc-title {
  font-size: 28px;
  font-weight: 700;
  color: #1a202c;
  margin-bottom: 8px;
}

.calc-subtitle {
  font-size: 16px;
  color: #718096;
  margin-bottom: 24px;
}

/* Progress bar */
.calc-progress {
  display: flex;
  justify-content: center;
  gap: 12px;
}

.calc-progress__step {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  background: #e2e8f0;
  color: #a0aec0;
  transition: all 0.3s;
}

.calc-progress__step.active {
  background: #2b6cb0;
  color: #fff;
}

.calc-progress__step.done {
  background: #48bb78;
  color: #fff;
}

/* Steps */
.calc-step {
  animation: calcFadeIn 0.3s ease-out;
}

.calc-step__title {
  text-align: center;
  font-size: 20px;
  font-weight: 600;
  color: #2d3748;
  margin-bottom: 24px;
}

@keyframes calcFadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

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

.calc-grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

.calc-grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.calc-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 20px 12px;
  border: 2px solid #e2e8f0;
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 14px;
  color: #4a5568;
  font-weight: 500;
}

.calc-option:hover {
  border-color: #2b6cb0;
  background: #ebf8ff;
}

.calc-option.selected {
  border-color: #2b6cb0;
  background: #ebf8ff;
  color: #2b6cb0;
}

.calc-option i {
  font-size: 24px;
  color: #2b6cb0;
}

.calc-option--large {
  padding: 32px 20px;
}

.calc-option--large i {
  font-size: 32px;
}

.calc-option--large span {
  font-size: 16px;
}

/* Back button */
.calc-back {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  padding: 8px 16px;
  background: none;
  border: none;
  color: #718096;
  cursor: pointer;
  font-size: 14px;
  transition: color 0.2s;
}

.calc-back:hover {
  color: #2b6cb0;
}

/* Result */
.calc-result {
  text-align: center;
  padding: 24px;
  background: linear-gradient(135deg, #ebf8ff 0%, #e9f5ff 100%);
  border-radius: 12px;
  margin-bottom: 24px;
}

.calc-result__label {
  display: block;
  font-size: 14px;
  color: #718096;
  margin-bottom: 4px;
}

.calc-result__value {
  display: block;
  font-size: 32px;
  font-weight: 700;
  color: #2b6cb0;
}

.calc-result__note {
  font-size: 13px;
  color: #718096;
  margin-top: 8px;
}

/* Form inside calculator */
.calc-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.calc-form__fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* Success state */
.calc-success {
  text-align: center;
  padding: 40px 20px;
}

.calc-success__icon {
  font-size: 48px;
  color: #48bb78;
  margin-bottom: 16px;
}

.calc-success h3 {
  font-size: 24px;
  color: #2d3748;
  margin-bottom: 8px;
}

.calc-success p {
  color: #718096;
  margin-bottom: 20px;
}

/* Mobile responsive */
@media (max-width: 768px) {
  .calc-section {
    padding: 40px 16px;
  }

  .calc-container {
    padding: 24px 20px;
  }

  .calc-title {
    font-size: 22px;
  }

  .calc-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .calc-grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .calc-option {
    padding: 16px 8px;
    font-size: 13px;
  }

  .calc-option i {
    font-size: 20px;
  }

  .calc-result__value {
    font-size: 26px;
  }

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

@media (max-width: 480px) {
  .calc-grid--3 {
    grid-template-columns: 1fr;
  }
}