/**
 * Form Builder Frontend Styles
 * Google Forms inspired - Clean, Simple, Flat Design
 */

:root {
  --color-primary: #4285f4;
  --color-text: #202124;
  --color-text-light: #5f6368;
  --color-border: #dadce0;
  --color-bg: #ffffff;
  --color-bg-light: #f8f9fa;
  --color-error: #d33b27;
  --color-success: #34a853;
  --color-focus: #4285f4;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 16px;
  --spacing-xl: 24px;
  --spacing-2xl: 32px;
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

.form-builder-container {
  max-width: 650px;
  margin: 0 auto;
  border-radius: 10px;
  padding: var(--spacing-xl);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen",
    "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue",
    sans-serif;
  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
}

.form-builder-form {
  background: var(--color-bg);
  border-radius: var(--radius);
  box-shadow: 0 1px 3px 0 rgba(60, 64, 67, 0.3),
    0 4px 8px 3px rgba(60, 64, 67, 0.15);
  padding: var(--spacing-2xl);
  border: 1px solid var(--color-border);
  animation: formFadeIn 0.3s ease-out;
}

@keyframes formFadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.form-builder-page {
  animation: pageSlideIn 0.4s ease-out;
}

@keyframes pageSlideIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.form-builder-field {
  margin-bottom: var(--spacing-2xl);
  position: relative;
}

.form-builder-field:last-child {
  margin-bottom: 0;
}

.form-builder-field label {
  display: block;
  margin-bottom: var(--spacing-md);
  font-weight: 500;
  color: var(--color-text);
  font-size: 14px;
  line-height: 1.4;
  letter-spacing: 0.2px;
}

.form-builder-required {
  color: var(--color-error);
  margin-left: var(--spacing-xs);
  font-weight: 600;
}

.form-builder-input,
.form-builder-textarea,
.form-builder-select {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: 15px;
  transition: all 0.2s ease;
  font-family: inherit;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
}

.form-builder-input::placeholder,
.form-builder-textarea::placeholder {
  color: var(--color-text-light);
}

.form-builder-input:focus,
.form-builder-textarea:focus,
.form-builder-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 1px 3px 0 rgba(66, 133, 244, 0.3);
  background-color: var(--color-bg);
}

.form-builder-textarea {
  min-height: 120px;
  resize: vertical;
  line-height: 1.6;
  font-family: inherit;
}

/* Error States */
.form-builder-field.error .form-builder-input,
.form-builder-field.error .form-builder-textarea,
.form-builder-field.error .form-builder-select {
  border-color: var(--color-error);
  background-color: rgba(211, 59, 39, 0.05);
}

.form-builder-error-message {
  color: var(--color-error);
  font-size: 12px;
  margin-top: var(--spacing-sm);
  display: none;
  font-weight: 500;
}

.form-builder-field.error .form-builder-error-message {
  display: block;
}

/* Radio and Checkbox */
.form-builder-radio-group,
.form-builder-checkbox-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.form-builder-radio-option,
.form-builder-checkbox-option {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  background: var(--color-bg);
}

.form-builder-radio-option:hover,
.form-builder-checkbox-option:hover {
  background: var(--color-bg-light);
  border-color: var(--color-primary);
}

.form-builder-radio-option input[type="radio"],
.form-builder-checkbox-option input[type="checkbox"] {
  margin: 2px 0 0 0;
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--color-primary);
  flex-shrink: 0;
}

.form-builder-radio-option span,
.form-builder-checkbox-option span {
  color: var(--color-text);
  font-size: 14px;
  line-height: 1.5;
  flex: 1;
  word-break: break-word;
}

.form-builder-radio-option input[type="radio"]:checked + span,
.form-builder-checkbox-option input[type="checkbox"]:checked + span {
  font-weight: 500;
  color: var(--color-primary);
}

/* File Input */
.form-builder-file {
  padding: var(--spacing-xl);
  border: 2px dashed var(--color-border);
  border-radius: 4px;
  width: 100%;
  cursor: pointer;
  background: var(--color-bg-light);
  transition: all 0.2s ease;
  text-align: center;
  color: var(--color-text-light);
}

.form-builder-file:hover {
  border-color: var(--color-primary);
  background: rgba(66, 133, 244, 0.05);
}

.form-builder-file:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(66, 133, 244, 0.1);
}

/* Navigation */
.form-builder-navigation {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--spacing-2xl);
  padding-top: var(--spacing-2xl);
  gap: var(--spacing-lg);
}

.form-builder-btn {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 14px;
  font-weight: 500;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  letter-spacing: 0.25px;
}

.form-builder-btn-primary,
.form-builder-btn-next,
.form-builder-btn-submit {
  background: var(--color-primary);
  color: white;
  box-shadow: 0 1px 3px 0 rgba(66, 133, 244, 0.3);
}

.form-builder-btn-primary:hover,
.form-builder-btn-next:hover,
.form-builder-btn-submit:hover {
  background: #3367d6;
  box-shadow: 0 1px 3px 0 rgba(66, 133, 244, 0.4);
  transform: translateY(-1px);
}

.form-builder-btn-primary:active,
.form-builder-btn-next:active,
.form-builder-btn-submit:active {
  background: #2d56ca;
  box-shadow: 0 1px 3px 0 rgba(66, 133, 244, 0.3);
  transform: translateY(0);
}

.form-builder-btn-back {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-border);
}

.form-builder-btn-back:hover {
  background: var(--color-bg-light);
  border-color: var(--color-primary);
}

.form-builder-btn-back:active {
  background: #f0f0f0;
}

.form-builder-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Link Button */
.form-builder-link-button {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  margin: var(--spacing-md) 0;
  text-decoration: none;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  font-family: inherit;
}

.form-builder-link-primary {
  background: var(--color-primary);
  color: #ffffff;
}

.form-builder-link-primary:hover {
  background: #3367d6;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(66, 133, 244, 0.3);
}

.form-builder-link-secondary {
  background: #f8f9fa;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.form-builder-link-secondary:hover {
  background: #e8eaed;
  transform: translateY(-1px);
}

.form-builder-link-success {
  background: var(--color-success);
  color: #ffffff;
}

.form-builder-link-success:hover {
  background: #2d8a44;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(52, 168, 83, 0.3);
}

.form-builder-link-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.form-builder-link-outline:hover {
  background: var(--color-primary);
  color: #ffffff;
  transform: translateY(-1px);
}

/* Progress */
.form-builder-progress {
  text-align: center;
  margin-top: var(--spacing-xl);
  font-size: 13px;
  color: var(--color-text-light);
  background: transparent;
  padding: var(--spacing-md);
  border-radius: 20px;
  display: inline-block;
  margin-left: auto;
  margin-right: auto;
}

.form-builder-page-current {
  font-weight: 600;
  color: var(--color-primary);
  font-size: 14px;
}

.form-builder-page-separator {
  margin: 0 var(--spacing-sm);
  color: var(--color-text-light);
}

.form-builder-page-total {
  color: var(--color-text-light);
}

/* Success Message */
.form-builder-success {
  background: linear-gradient(135deg, var(--color-success) 0%, #1e8449 100%);
  color: white;
  border-radius: var(--radius);
  box-shadow: 0 1px 3px 0 rgba(52, 168, 83, 0.3),
    0 4px 8px 3px rgba(52, 168, 83, 0.15);
  padding: var(--spacing-2xl);
  text-align: center;
  animation: successPulse 0.5s ease-out;
}

@keyframes successPulse {
  from {
    opacity: 0;
    transform: scale(0.95);
  }

  to {
    opacity: 1;
    transform: scale(1);
  }
}

.form-builder-success h3 {
  color: white;
  font-size: 24px;
  margin: 0 0 var(--spacing-md) 0;
  font-weight: 600;
  letter-spacing: 0.25px;
}

.form-builder-success p {
  color: rgba(255, 255, 255, 0.95);
  font-size: 14px;
  margin: 0;
  line-height: 1.5;
}

/* Field Page Divider */
.form-builder-page {
  position: relative;
  padding-bottom: var(--spacing-xl);
  border-bottom: 2px solid var(--color-border);
}

.form-builder-page:last-of-type {
  border-bottom: none;
  padding-bottom: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
  .form-builder-container {
    padding: var(--spacing-lg) var(--spacing-sm);
  }

  .form-builder-form {
    padding: var(--spacing-xl) var(--spacing-lg);
    border-radius: var(--radius);
  }

  .form-builder-field {
    margin-bottom: var(--spacing-xl);
  }

  .form-builder-input,
  .form-builder-textarea,
  .form-builder-select {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 16px;
  }

  .form-builder-navigation {
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
  }

  .form-builder-btn {
    width: 100%;
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .form-builder-progress {
    margin-top: var(--spacing-lg);
    font-size: 13px;
  }

  .form-builder-success {
    padding: var(--spacing-xl) var(--spacing-lg);
  }

  .form-builder-success h3 {
    font-size: 22px;
  }

  .form-builder-success p {
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  .form-builder-container {
    padding: var(--spacing-md) var(--spacing-sm);
    min-height: auto;
  }

  .form-builder-form {
    padding: var(--spacing-lg) var(--spacing-md);
    border-radius: 4px;
  }

  .form-builder-field {
    margin-bottom: var(--spacing-lg);
  }

  .form-builder-field label {
    font-size: 14px;
  }

  .form-builder-input,
  .form-builder-textarea,
  .form-builder-select {
    padding: var(--spacing-md) var(--spacing-md);
    font-size: 16px;
    border-radius: 4px;
  }

  .form-builder-radio-option,
  .form-builder-checkbox-option {
    padding: var(--spacing-md);
    gap: var(--spacing-sm);
  }

  .form-builder-btn {
    width: 100%;
    padding: var(--spacing-lg) var(--spacing-md);
    font-size: 14px;
  }

  .form-builder-success {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .form-builder-success h3 {
    font-size: 20px;
    margin-bottom: var(--spacing-md);
  }

  .form-builder-success p {
    font-size: 13px;
  }

  .form-builder-navigation {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
  }
}

/* Label Field Styles */
.form-builder-field-label {
  margin-bottom: var(--spacing-lg);
}

.form-builder-label-field {
  color: var(--color-text);
  line-height: 1.4;
  margin: 0;
}

.form-builder-label-field.form-builder-label-center {
  text-align: center;
}

.form-builder-label-field.form-builder-label-large {
  font-size: 1.5em;
  font-weight: 600;
}

.form-builder-label-field.form-builder-label-small {
  font-size: 0.875em;
}

.form-builder-label-field.form-builder-label-bold {
  font-weight: 700;
}

.form-builder-label-field.form-builder-label-muted {
  color: var(--color-text-light);
  font-weight: 400;
}

/* Print Styles */
@media print {
  .form-builder-navigation,
  .form-builder-progress {
    display: none;
  }
}