/**
 * Funnel Runner Styles
 * Minimal, elegant, and responsive
 */

:root {
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --text-color: #1f2937;
  --text-secondary: #6b7280;
  --border-color: #e5e7eb;
  --error-color: #dc2626;
  --success-color: #16a34a;
  --bg-color: #ffffff;
  --bg-secondary: #f9fafb;
  --border-radius: 8px;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-base: 16px;
  --font-size-sm: 14px;
  --font-size-lg: 18px;
  --font-size-xl: 24px;
  --max-width: 600px;
  --transition: all 0.2s ease;
}

/* Reset and base styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--bg-secondary);
}

/* Container */
#funnel-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

/* Page wrapper */
.funnel-page {
  width: 100%;
  max-width: var(--max-width);
  background: var(--bg-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Progress indicator */
.funnel-progress {
  margin-bottom: var(--spacing-xl);
}

.funnel-progress-bar {
  width: 100%;
  height: 8px;
  background: var(--border-color);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: var(--spacing-sm);
}

.funnel-progress-fill {
  height: 100%;
  background: var(--primary-color);
  transition: width 0.3s ease;
}

.funnel-progress-text {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  text-align: center;
}

/* Page title and description */
.funnel-page-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--text-color);
}

.funnel-page-description {
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
}

/* Form */
.funnel-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

/* Interaction wrapper */
.funnel-interaction {
  width: 100%;
}

/* Field group */
.funnel-field-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

/* Label */
.funnel-label {
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--text-color);
}

.funnel-label .required {
  color: var(--error-color);
}

/* Input fields */
.funnel-input,
.funnel-textarea,
.funnel-select {
  width: 100%;
  padding: 12px 16px;
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  color: var(--text-color);
  background: var(--bg-color);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  transition: var(--transition);
  outline: none;
}

.funnel-input:focus,
.funnel-textarea:focus,
.funnel-select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.funnel-input:invalid,
.funnel-textarea:invalid,
.funnel-select:invalid {
  border-color: var(--error-color);
}

.funnel-textarea {
  min-height: 120px;
  resize: vertical;
}

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

.funnel-radio-label,
.funnel-checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-base);
  color: var(--text-color);
  cursor: pointer;
  padding: var(--spacing-md);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.funnel-radio-label:hover,
.funnel-checkbox-label:hover {
  border-color: var(--primary-color);
  background: var(--bg-secondary);
}

.funnel-radio,
.funnel-checkbox {
  width: 20px;
  height: 20px;
  cursor: pointer;
}

/* Help text */
.funnel-help-text {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* Error message */
.funnel-error {
  font-size: var(--font-size-sm);
  color: var(--error-color);
  margin-top: var(--spacing-xs);
}

/* Buttons */
.funnel-button {
  padding: 12px 24px;
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--bg-color);
  background: var(--primary-color);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  outline: none;
}

.funnel-button:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.funnel-button:active {
  transform: translateY(0);
}

.funnel-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.funnel-button-back {
  background: transparent;
  color: var(--text-color);
  border: 2px solid var(--border-color);
}

.funnel-button-back:hover {
  background: var(--bg-secondary);
  border-color: var(--text-color);
}

.funnel-cta {
  font-size: var(--font-size-lg);
  padding: 16px 32px;
}

/* Navigation */
.funnel-navigation {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.funnel-navigation .funnel-button {
  flex: 1;
}

/* Typography elements */
.funnel-heading {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: var(--spacing-md);
}

.funnel-paragraph {
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Image */
.funnel-image {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius);
}

/* Spacer */
.funnel-spacer {
  height: var(--spacing-lg);
}

/* Divider */
.funnel-divider {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: var(--spacing-lg) 0;
}

/* HTML block */
.funnel-html-block {
  line-height: 1.7;
}

.funnel-html-block h1,
.funnel-html-block h2,
.funnel-html-block h3 {
  margin-bottom: var(--spacing-md);
}

.funnel-html-block p {
  margin-bottom: var(--spacing-md);
}

.funnel-html-block ul,
.funnel-html-block ol {
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

/* Completion message */
.funnel-completion {
  text-align: center;
  padding: var(--spacing-xl);
}

.funnel-completion h2 {
  font-size: var(--font-size-xl);
  color: var(--success-color);
  margin-bottom: var(--spacing-md);
}

.funnel-completion p {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
}

/* Responsive styles */
@media (max-width: 768px) {
  :root {
    --font-size-base: 14px;
    --font-size-xl: 20px;
    --spacing-lg: 16px;
    --spacing-xl: 24px;
  }

  #funnel-container {
    padding: var(--spacing-md);
  }

  .funnel-page {
    padding: var(--spacing-lg);
  }

  .funnel-navigation {
    flex-direction: column-reverse;
  }

  .funnel-button {
    width: 100%;
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-base: 13px;
    --font-size-xl: 18px;
  }

  .funnel-page {
    padding: var(--spacing-md);
  }

  .funnel-input,
  .funnel-textarea,
  .funnel-select {
    padding: 10px 14px;
  }

  .funnel-button {
    padding: 10px 20px;
  }
}

/* Loading state */
.funnel-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  color: var(--text-secondary);
}

/* Animation for page transitions */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.funnel-page {
  animation: fadeIn 0.3s ease;
}

/* Slider styles */
.funnel-slider-container {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.funnel-slider {
  flex: 1;
  height: 8px;
  border-radius: 4px;
  background: var(--border-color);
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.funnel-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary-color);
  cursor: pointer;
  transition: var(--transition);
}

.funnel-slider::-webkit-slider-thumb:hover {
  transform: scale(1.1);
  box-shadow: 0 0 0 8px rgba(37, 99, 235, 0.1);
}

.funnel-slider::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary-color);
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.funnel-slider::-moz-range-thumb:hover {
  transform: scale(1.1);
  box-shadow: 0 0 0 8px rgba(37, 99, 235, 0.1);
}

.funnel-slider-value {
  min-width: 80px;
  text-align: right;
  font-weight: 600;
  color: var(--primary-color);
  font-size: var(--font-size-lg);
}

/* Rating styles */
.funnel-rating-container {
  display: flex;
  gap: var(--spacing-sm);
  font-size: 32px;
  user-select: none;
}

.funnel-rating-item {
  cursor: pointer;
  transition: var(--transition);
  color: var(--primary-color);
}

.funnel-rating-item:hover {
  transform: scale(1.1);
}

/* Video and Embed styles */
.funnel-video-container,
.funnel-embed-container {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  height: 0;
  overflow: hidden;
  border-radius: var(--border-radius);
  margin: var(--spacing-md) 0;
}

.funnel-video,
.funnel-embed {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: var(--border-radius);
}

/* Link styles */
.funnel-link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.funnel-link:hover {
  text-decoration: underline;
  color: var(--primary-hover);
}

/* Page transition animations */
@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slide-left {
  from {
    transform: translateX(-20px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes slide-right {
  from {
    transform: translateX(20px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.transition-fade-in {
  animation: fade-in 0.3s ease;
}

.transition-slide-left {
  animation: slide-left 0.3s ease;
}

.transition-slide-right {
  animation: slide-right 0.3s ease;
}

/* Print styles */
@media print {
  #funnel-container {
    padding: 0;
  }

  .funnel-page {
    box-shadow: none;
  }

  .funnel-navigation,
  .funnel-progress {
    display: none;
  }
}