/**
 * TradeCalcs Before/After Slider Styles
 * Version: 1.0.0
 *
 * Theming via CSS custom properties for easy customization.
 * Mobile responsive, accessible, clean design.
 */

:root {
  /* Before/After colors */
  --tc-ba-slider-color: #667eea;
  --tc-ba-slider-hover: #5568d3;
  --tc-ba-handle-bg: #ffffff;
  --tc-ba-handle-border: #667eea;
  --tc-ba-label-bg: rgba(0, 0, 0, 0.7);
  --tc-ba-label-text: #ffffff;

  /* Sizing */
  --tc-ba-slider-width: 4px;
  --tc-ba-handle-size: 48px;
  --tc-ba-label-padding: 0.5rem 1rem;
  --tc-ba-label-size: 0.875rem;

  /* Shadows */
  --tc-ba-handle-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  --tc-ba-label-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  :root {
    --tc-ba-slider-color: #818cf8;
    --tc-ba-slider-hover: #6366f1;
    --tc-ba-handle-bg: #1f2937;
    --tc-ba-handle-border: #818cf8;
    --tc-ba-label-bg: rgba(255, 255, 255, 0.9);
    --tc-ba-label-text: #111827;
  }
}

/* Main container */
.tc-before-after {
  position: relative;
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  border-radius: 8px;
  box-sizing: border-box;
}

/* Wrapper for images and slider */
.tc-ba-wrapper {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
}

/* Before container (clipped) */
.tc-ba-before-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  clip-path: inset(0 50% 0 0); /* Clip from right */
  z-index: 2;
}

/* After container (full) */
.tc-ba-after-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

/* Images */
.tc-before-image,
.tc-after-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  pointer-events: none;
}

/* Slider handle */
.tc-ba-slider {
  position: absolute;
  top: 0;
  left: 50%;
  width: var(--tc-ba-slider-width);
  height: 100%;
  background: var(--tc-ba-slider-color);
  transform: translateX(-50%);
  cursor: ew-resize;
  z-index: 3;
  transition: background 0.2s ease;
}

.tc-ba-slider:hover,
.tc-ba-slider:focus {
  background: var(--tc-ba-slider-hover);
  outline: none;
}

.tc-ba-slider:focus-visible {
  outline: 3px solid var(--tc-ba-slider-color);
  outline-offset: 2px;
}

.tc-ba-slider-active {
  background: var(--tc-ba-slider-hover);
}

/* Slider handle (draggable circle) */
.tc-ba-slider-handle {
  position: absolute;
  top: 50%;
  left: 50%;
  width: var(--tc-ba-handle-size);
  height: var(--tc-ba-handle-size);
  background: var(--tc-ba-handle-bg);
  border: 3px solid var(--tc-ba-handle-border);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  box-shadow: var(--tc-ba-handle-shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

/* Arrows on handle */
.tc-ba-slider-handle::before,
.tc-ba-slider-handle::after {
  content: '';
  position: absolute;
  width: 0;
  height: 0;
  border-style: solid;
}

/* Left arrow */
.tc-ba-slider-handle::before {
  left: 30%;
  border-width: 6px 8px 6px 0;
  border-color: transparent var(--tc-ba-handle-border) transparent transparent;
}

/* Right arrow */
.tc-ba-slider-handle::after {
  right: 30%;
  border-width: 6px 0 6px 8px;
  border-color: transparent transparent transparent var(--tc-ba-handle-border);
}

/* Labels */
.tc-ba-label {
  position: absolute;
  top: 1rem;
  padding: var(--tc-ba-label-padding);
  background: var(--tc-ba-label-bg);
  color: var(--tc-ba-label-text);
  font-size: var(--tc-ba-label-size);
  font-weight: 600;
  border-radius: 4px;
  box-shadow: var(--tc-ba-label-shadow);
  pointer-events: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tc-ba-label-before {
  left: 1rem;
}

.tc-ba-label-after {
  right: 1rem;
}

/* Mobile responsive */
@media (max-width: 768px) {
  :root {
    --tc-ba-handle-size: 40px;
    --tc-ba-label-size: 0.75rem;
    --tc-ba-label-padding: 0.375rem 0.75rem;
  }

  .tc-ba-label {
    top: 0.5rem;
  }

  .tc-ba-label-before {
    left: 0.5rem;
  }

  .tc-ba-label-after {
    right: 0.5rem;
  }
}

/* Smaller mobile */
@media (max-width: 375px) {
  :root {
    --tc-ba-handle-size: 36px;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .tc-ba-slider {
    transition: none;
  }
}

/* Touch device optimization */
@media (hover: none) and (pointer: coarse) {
  .tc-ba-slider {
    width: 8px; /* Wider tap target on touch devices */
  }

  .tc-ba-slider-handle {
    width: 56px;
    height: 56px; /* Larger tap target */
  }
}