/**
 * Mobile Accessibility and Touch Target Optimizations
 * Ensures all interactive elements meet WCAG guidelines
 */

/* ============================================
   TOUCH TARGETS - MINIMUM 44px
   ============================================ */

/* Base touch targets */
button, 
.btn, 
.btn-link,
a[role="button"],
input[type="button"], 
input[type="submit"], 
input[type="reset"],
.button,
.link-button {
  min-height: 44px;
  min-width: 44px;
  padding: 12px 16px;
  touch-action: manipulation; /* Prevents double-tap zoom */
  -webkit-tap-highlight-color: rgba(0,0,0,0.1);
}

/* Form controls */
input, 
select, 
textarea,
.form-control,
.form-select {
  min-height: 44px;
  font-size: 16px; /* Prevents zoom on iOS */
  padding: 12px 16px;
  touch-action: manipulation;
}

/* Links that act as buttons */
a {
  min-height: 44px;
  display: inline-block;
  padding: 8px 4px; /* Minimum padding for touch */
  touch-action: manipulation;
}

/* Navigation links */
.nav-link,
.navbar-nav .nav-link,
.breadcrumb-item a {
  min-height: 44px;
  display: flex;
  align-items: center;
  padding: 12px 16px;
}

/* Card links and interactive cards */
.card-link,
.card[role="button"],
.card.clickable {
  min-height: 44px;
  touch-action: manipulation;
}

/* Dropdown items */
.dropdown-item {
  min-height: 44px;
  padding: 12px 16px;
  display: flex;
  align-items: center;
}

/* Pagination */
.page-link {
  min-height: 44px;
  min-width: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
}

/* Close buttons and small controls */
.btn-close,
.close,
button[aria-label*="close"],
button[aria-label*="cerrar"] {
  min-height: 44px;
  min-width: 44px;
  padding: 12px;
}

/* ============================================
   FORM IMPROVEMENTS
   ============================================ */

/* Prevent zoom on input focus (iOS) */
input,
select,
textarea {
  font-size: max(16px, 1rem); /* 16px minimum to prevent iOS zoom */
  -webkit-appearance: none;
  appearance: none;
}

/* Better checkbox and radio targets */
input[type="checkbox"],
input[type="radio"] {
  min-height: 20px;
  min-width: 20px;
  margin: 12px; /* Increases touch area */
  transform: scale(1.2); /* Makes them visually larger */
}

/* Label touch targets for checkboxes/radios */
label {
  min-height: 44px;
  display: flex;
  align-items: center;
  cursor: pointer;
  padding: 8px 0;
}

/* ============================================
   SPACING AND LAYOUT
   ============================================ */

/* Adequate spacing between touch targets */
.btn + .btn,
.form-control + .form-control,
.nav-item + .nav-item {
  margin-left: 8px;
}

.btn-group .btn {
  margin-left: 0; /* Reset for button groups */
}

/* Stack buttons vertically on small screens */
@media (max-width: 576px) {
  .btn-group {
    flex-direction: column;
  }
  
  .btn-group .btn {
    margin-left: 0;
    margin-bottom: 8px;
  }
  
  .btn-group .btn:last-child {
    margin-bottom: 0;
  }
}

/* ============================================
   FOCUS INDICATORS
   ============================================ */

/* Enhanced focus indicators for touch devices */
button:focus,
.btn:focus,
a:focus,
input:focus,
select:focus,
textarea:focus,
[tabindex]:focus {
  outline: 3px solid var(--primary, #0066cc);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.25);
}

/* Focus visible polyfill support */
.js-focus-visible :focus:not(.focus-visible) {
  outline: none;
  box-shadow: none;
}

.focus-visible {
  outline: 3px solid var(--primary, #0066cc) !important;
  outline-offset: 2px !important;
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.25) !important;
}

/* ============================================
   HIGH CONTRAST MODE SUPPORT
   ============================================ */

@media (prefers-contrast: high) {
  button,
  .btn,
  input,
  select,
  textarea {
    border: 2px solid;
  }
  
  .btn-primary {
    border-color: currentColor;
  }
  
  a {
    text-decoration: underline;
  }
}

/* ============================================
   REDUCED MOTION SUPPORT
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================
   DARK MODE SUPPORT
   ============================================ */

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1a1a;
    --fg: #ffffff;
    --fg-muted: #cccccc;
    --surface: #2d2d2d;
    --border: #404040;
  }
  
  /* Ensure sufficient contrast in dark mode */
  button:focus,
  .btn:focus,
  a:focus,
  input:focus,
  select:focus,
  textarea:focus {
    outline-color: #66b3ff;
    box-shadow: 0 0 0 3px rgba(102, 179, 255, 0.25);
  }
}

/* ============================================
   SPECIFIC COMPONENT FIXES
   ============================================ */

/* Ensure Bootstrap components meet touch target requirements */
.navbar-toggler {
  min-height: 44px;
  min-width: 44px;
  padding: 12px;
}

.carousel-control-prev,
.carousel-control-next {
  min-height: 44px;
  min-width: 44px;
  padding: 12px;
}

.modal-header .btn-close {
  min-height: 44px;
  min-width: 44px;
  padding: 12px;
}

/* Accordion buttons */
.accordion-button {
  min-height: 44px;
  padding: 16px 20px;
}

/* Tab navigation */
.nav-tabs .nav-link,
.nav-pills .nav-link {
  min-height: 44px;
  padding: 12px 16px;
  display: flex;
  align-items: center;
}

/* ============================================
   PRINT ACCESSIBILITY
   ============================================ */

@media print {
  /* Ensure focus indicators are visible in print */
  :focus {
    outline: 2px solid #000 !important;
  }
  
  /* Hide interactive elements that don't make sense in print */
  button,
  .btn,
  input,
  select,
  textarea,
  .nav,
  .navbar {
    display: none !important;
  }
}