.form-section {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--border-color);
}

.form-section:last-of-type {
  border-bottom: none;
}

.form-section h2 {
  color: var(--primary-color);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-lg);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 1rem;
  font-family: inherit;
}

.form-group input.input-phone {
  max-width: 13rem; /* room for an extension, e.g. "404-555-1212 x123" */
}

.form-group input.input-email {
  max-width: 20rem;
}

.form-group input.field-error,
.form-group select.field-error {
  border-color: var(--danger-color);
  box-shadow: 0 0 0 1px var(--danger-color);
}

.form-group.has-error > label {
  color: var(--danger-color);
}

.form-group.has-error .checkbox-group,
.form-group.has-error .radio-group {
  border: 1px solid var(--danger-color);
  border-radius: var(--border-radius);
  background: #fdecea;
  padding: var(--spacing-sm);
}

.field-error-message {
  color: var(--danger-color);
  font-size: 0.875rem;
  margin-top: var(--spacing-xs);
}

.checkbox-group,
.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.radio-group--stacked {
  flex-direction: column;
  flex-wrap: nowrap;
  gap: var(--spacing-sm);
}

.checkbox-group label,
.radio-group label {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-weight: normal;
  cursor: pointer;
}

.form-help {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-top: var(--spacing-xs);
}

.agreement-box {
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--primary-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  font-size: 0.9375rem;
}

.agreement-box .agreement-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--primary-color);
}

.agreement-box p {
  margin-bottom: var(--spacing-sm);
}

.agreement-box p:last-child {
  margin-bottom: 0;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

@media (max-width: 768px) {
  .form-row {
    grid-template-columns: 1fr;
  }

  .form-actions {
    flex-direction: column-reverse;
  }

  .form-actions .btn {
    width: 100%;
    justify-content: center;
  }
}