/* QRStudio Custom Styles */

/* Checkerboard transparency pattern */
.checkerboard {
  background-image:
    linear-gradient(45deg, #e0e0e0 25%, transparent 25%),
    linear-gradient(-45deg, #e0e0e0 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #e0e0e0 75%),
    linear-gradient(-45deg, transparent 75%, #e0e0e0 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
}

/* Dark mode checkerboard */
.dark .checkerboard {
  background-image:
    linear-gradient(45deg, #374151 25%, transparent 25%),
    linear-gradient(-45deg, #374151 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #374151 75%),
    linear-gradient(-45deg, transparent 75%, #374151 75%);
}

/* Drag and drop zone styles */
.drop-zone {
  transition: border-color 0.2s, background-color 0.2s;
}
.drop-zone.drag-over {
  border-color: #3B82F6;
  background-color: #EFF6FF;
}
.dark .drop-zone.drag-over {
  background-color: #1E3A5F;
}

/* Range slider custom styling */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  border-radius: 9999px;
  outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: white;
  border: 2px solid #3B82F6;
  cursor: pointer;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: white;
  border: 2px solid #3B82F6;
  cursor: pointer;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

/* Color input styling */
input[type="color"] {
  -webkit-appearance: none;
  appearance: none;
  border: none;
  padding: 0;
  cursor: pointer;
  border-radius: 8px;
  overflow: hidden;
}
input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}
input[type="color"]::-webkit-color-swatch {
  border: 1px solid #E5E7EB;
  border-radius: 8px;
}

/* Pill button active state */
.pill-btn.active {
  background-color: #3B82F6;
  color: white;
  border-color: #3B82F6;
}

/* Smooth transitions */
.transition-colors {
  transition-property: color, background-color, border-color;
  transition-duration: 200ms;
}

/* Skip to content link */
.skip-to-content {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 999;
  padding: 0.5rem 1rem;
  background: #3B82F6;
  color: white;
  font-weight: 600;
}
.skip-to-content:focus {
  left: 0;
}

/* AdSense slot reservations — prevent CLS from late ad injection */
ins.adsbygoogle {
  min-height: 90px;
}

/* Leaderboard banner — reserve space; mobile responsive expands to square-ish */
ins.adsbygoogle[style*="728px"] {
  min-height: 90px;
}
@media (max-width: 768px) {
  ins.adsbygoogle[style*="728px"] {
    display: block !important;
    width: 100% !important;
    max-width: 100%;
    min-height: 280px;
  }
}

/* Medium rectangle (300x250) — sidebar + footer */
ins.adsbygoogle[style*="300px"] {
  min-height: 250px;
}

/* Sidebar ads - hide on mobile */
@media (max-width: 1024px) {
  aside.hidden.lg\:flex {
    display: none !important;
  }
}