/* Recicla Consciente 2025 - Global CSS with Design Tokens */

:root {
  /* Color tokens */
  --color-accent: #2E7D32;
  --color-accent-light: #4CAF50;
  --color-accent-dark: #1B5E20;
  --color-text: #212121;
  --color-text-secondary: #757575;
  --color-background: #FAFAFA;
  --color-surface: #FFFFFF;
  --color-border: #E0E0E0;
  --color-border-focus: var(--color-accent);
  --color-error: #D32F2F;
  --color-success: var(--color-accent);
  
  /* Typography tokens */
  --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 700;
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  /* Spacing tokens */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border radius tokens */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  
  /* Shadow tokens */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  
  /* Transition tokens */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
}

/* Base styles */
* {
  box-sizing: border-box;
}

/* Hide oTree title completely and remove extra spacing */
.otree-title.page-header {
  display: none !important;
}

/* Remove the space where the title was */
h2#_otree-title {
  display: none !important;
  margin: 0 !important;
  padding: 0 !important;
}

.otree-body {
  padding-top: 0 !important; /* Remove all padding */
}

.otree-body.container {
  margin-top: 0 !important;
  padding-top: 15px !important; /* Small padding for breathing room */
}

/* Adjust survey container spacing */
.survey-container {
  padding-top: var(--spacing-md) !important; /* Consistent top spacing */
}

/* Optimize page header spacing */
.survey-container .page-header {
  margin-bottom: var(--spacing-md) !important; /* Reduce bottom margin */
  padding-bottom: 0 !important;
}

.survey-container .page-header h2 {
  margin-bottom: var(--spacing-sm) !important; /* Smaller margin for h2 */
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  margin: 0;
  padding: 0;
}

/* Layout */
.container {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-lg);
}

.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-text);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  margin-top: 0;
  margin-bottom: var(--spacing-lg);
}

h1 {
  font-size: var(--font-size-3xl);
}

h2 {
  font-size: var(--font-size-2xl);
}

h3 {
  font-size: var(--font-size-xl);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
}

/* Form elements */
.form-group {
  margin-bottom: var(--spacing-lg);
}

label {
  display: block;
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-base);
}

input[type="text"],
input[type="number"],
input[type="email"],
select,
textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-family: var(--font-family-base);
  background-color: var(--color-surface);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input[type="text"]:focus,
input[type="number"]:focus,
input[type="email"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.1);
}

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

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

.radio-option,
.checkbox-option {
  display: flex;
  align-items: center;
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.radio-option:hover,
.checkbox-option:hover {
  background-color: var(--color-background);
}

input[type="radio"],
input[type="checkbox"] {
  width: auto;
  margin-right: var(--spacing-sm);
  accent-color: var(--color-accent);
}

/* Multiple choice lists */
.choice-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  max-height: 300px;
  overflow-y: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-sm);
}

.choice-item {
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.choice-item:hover {
  background-color: var(--color-background);
}

.choice-item input[type="checkbox"],
.choice-item input[type="radio"] {
  margin-right: var(--spacing-sm);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  font-family: var(--font-family-base);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 48px; /* Accessibility: minimum touch target */
}

.btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.2);
}

.btn-primary {
  background-color: var(--color-accent);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-accent-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-primary:disabled {
  background-color: var(--color-border);
  color: var(--color-text-secondary);
  cursor: not-allowed;
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-accent);
  color: white;
}

/* Navigation */
.page-navigation {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--spacing-2xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

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

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

.progress-fill {
  height: 100%;
  background-color: var(--color-accent);
  transition: width var(--transition-base);
}

/* Error messages */
.error-message {
  color: var(--color-error);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: rgba(211, 47, 47, 0.1);
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--color-error);
}

/* Success messages */
.success-message {
  color: var(--color-success);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: rgba(46, 125, 50, 0.1);
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--color-success);
}

/* Accessibility improvements */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Focus indicators */
*:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --color-border: #000000;
    --color-text: #000000;
    --color-background: #FFFFFF;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Mobile-first responsive design for legacy devices */
@media (max-width: 480px) {
  .container {
    max-width: 100%;
    padding: var(--spacing-sm);
  }
  
  .card {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-sm);
  }
  
  h1 { font-size: var(--font-size-xl); }
  h2 { font-size: var(--font-size-lg); }
  h3 { font-size: var(--font-size-base); }
  
  .btn {
    width: 100%;
    margin-bottom: var(--spacing-sm);
    min-height: 44px; /* iOS minimum touch target */
    font-size: var(--font-size-base);
  }
  
  input[type="text"],
  input[type="number"],
  input[type="email"],
  select,
  textarea {
    font-size: 16px; /* Prevent zoom on iOS */
    min-height: 44px;
  }
  
  .radio-option,
  .checkbox-option {
    padding: var(--spacing-md);
    min-height: 44px;
    margin-bottom: var(--spacing-xs);
  }
  
  .page-navigation {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  /* Multi-choice lists mobile optimization */
  .choice-list {
    max-height: 200px;
    font-size: var(--font-size-sm);
  }
  
  .choice-item {
    padding: var(--spacing-sm);
    min-height: 40px;
    display: flex;
    align-items: center;
  }
  
  /* Progress bar mobile */
  .progress-bar {
    height: 6px;
    margin-bottom: var(--spacing-md);
  }
}

/* Tablet and small desktop */
@media (min-width: 481px) and (max-width: 768px) {
  .container {
    max-width: 90%;
    padding: var(--spacing-lg);
  }
  
  .card {
    padding: var(--spacing-xl);
  }
  
  .btn {
    width: auto;
    min-width: 120px;
  }
  
  .page-navigation {
    justify-content: space-between;
  }
}

/* Large screens */
@media (min-width: 769px) {
  .container {
    max-width: 800px;
  }
  
  .radio-group,
  .checkbox-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-sm);
  }
}

/* Legacy browser support - Flexbox fallbacks */
.radio-group,
.checkbox-group {
  display: block; /* Fallback for very old browsers */
  display: -webkit-box; /* Old webkit */
  display: -ms-flexbox; /* IE 10 */
  display: flex;
}

.page-navigation {
  display: block; /* Fallback */
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}

/* Enhanced touch targets for mobile */
.choice-item input[type="checkbox"],
.choice-item input[type="radio"],
.radio-option input[type="radio"],
.checkbox-option input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-right: var(--spacing-sm);
  -webkit-appearance: none;
  appearance: none;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  position: relative;
}

.choice-item input[type="radio"],
.radio-option input[type="radio"] {
  border-radius: 50%;
}

.choice-item input[type="checkbox"]:checked,
.choice-item input[type="radio"]:checked,
.radio-option input[type="radio"]:checked,
.checkbox-option input[type="checkbox"]:checked {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

.choice-item input[type="checkbox"]:checked::after,
.checkbox-option input[type="checkbox"]:checked::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: 12px;
  font-weight: bold;
}

.choice-item input[type="radio"]:checked::after,
.radio-option input[type="radio"]:checked::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 8px;
  height: 8px;
  background-color: white;
  border-radius: 50%;
}

/* Print styles */
@media print {
  .btn,
  .page-navigation {
    display: none;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid var(--color-border);
  }
}