.concept-builder-hero {
  padding: 90px 0 40px;
  background: #d5c5b0;
}

.concept-builder-hero h1 {
  margin-top: 16px;
  font-size: clamp(40px, 6vw, 68px);
  line-height: 0.95;
}

.concept-builder-hero p {
  max-width: 520px;
  margin-top: 20px;
  color: #536368;
  font-size: 14px;
  line-height: 1.8;
}

.concept-builder-section {
  padding: 60px 0 130px;
}

.concept-builder-progress {
  display: flex;
  gap: 10px;
  margin-bottom: 40px;
}

.concept-builder-progress span {
  flex: 1;
  height: 2px;
  background: rgba(37, 59, 67, 0.15);
}

.concept-builder-progress span.is-done {
  background: var(--concept-ink);
}

.concept-builder-form {
  width: 100%;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
  padding: clamp(32px, 4vw, 52px);
  border-radius: var(--concept-radius-lg);
}

.concept-builder-step {
  margin-bottom: 56px;
}

.concept-builder-step-title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #9b7750;
}

.concept-builder-step h2 {
  margin-top: 12px;
  font-size: 30px;
}

.concept-builder-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 24px;
}

.concept-builder-option {
  position: relative;
  display: block;
}

.concept-builder-option input {
  position: absolute;
  opacity: 0;
}

.concept-builder-option span {
  display: block;
  border: 1px solid rgba(37, 59, 67, 0.18);
  border-radius: var(--concept-radius-md);
  padding: 18px 16px;
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: border-color 200ms ease, background 200ms ease;
}

.concept-builder-option input:checked + span {
  border-color: var(--concept-ink);
  background: #f6f1e9;
}

.concept-builder-fields {
  display: grid;
  gap: 18px;
  margin-top: 24px;
}

.concept-builder-actions {
  display: flex;
  gap: 16px;
  margin-top: 30px;
}

.concept-builder-success {
  max-width: 560px;
  padding: 40px;
  border: 1px solid rgba(37, 59, 67, 0.13);
  border-radius: var(--concept-radius-lg);
  background: #f6f1e9;
}

.concept-builder-success h2 {
  font-size: 26px;
}

.concept-builder-success p {
  margin-top: 14px;
  color: #536368;
  font-size: 14px;
  line-height: 1.8;
}

.concept-builder-form.is-wizard .concept-builder-step {
  display: none;
}

.concept-builder-form.is-wizard .concept-builder-step.is-active {
  display: block;
}

@media (max-width: 900px) {
  .concept-builder-options {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .concept-builder-form {
    padding: 24px;
  }

  .concept-builder-options {
    grid-template-columns: 1fr;
  }

  .concept-builder-actions {
    flex-direction: column;
  }
}