/* Scrollbar Track ========================================== 
 * 
 * 
 * 
 */
/* Wrapper for scroll container with custom scrollbar track */
.scroll-wrapper {
  position: relative;
  box-sizing: border-box;
  border: 1px dashed; /* For demo only */
  background: #f6e5cd;
  padding-right: 16px;
  width: 100%;
  height: 100%;
}

/* Custom scrollbar track using ::before pseudo-element */
.scroll-wrapper::before {
  position: absolute;
  top: 0;
  right: 4px;
  bottom: 0;
  z-index: 1;
  border-radius: 4px;
  background: #f1d988;
  width: 8px;
  pointer-events: none;
  content: '';
}

/* [Control by JS CustomScrollbar > updateThumb]  Hide scrollbar track when no scrolling is needed */
.scroll-wrapper.no-scroll::before {
  display: none;
}

/* Custom Scrollbar created by JS ==========================================
 * 
 * 
 * 
 */
/* Thumb container */
.custom-scrollbar-thumb {
  position: absolute;
  right: 0;
  z-index: 2;
  cursor: pointer;
  width: 16px;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

/* Top cap of the thumb */
.thumb-top {
  background: url('https://HackettLai.github.io/picx-images-hosting/edb/scrollbar-thumb-tip@2x.45i08s2349.png') no-repeat center; /* Replace img URL */
  background-size: contain;
  width: 16px;
  height: 13px;
}

/* Middle section (body) of the thumb */
.thumb-middle {
  background: url('https://HackettLai.github.io/picx-images-hosting/edb/scrollbar-thumb-body@2x.6t7gj4v4g4.png') repeat-y center; /* Replace img URL */
  background-size: contain;
  width: 16px;
}

/* Bottom cap of the thumb */
.thumb-bottom {
  background: url('https://HackettLai.github.io/picx-images-hosting/edb/scrollbar-thumb-cap@2x.5j4jctd553.png') no-repeat center; /* Replace img URL */
  background-size: contain;
  width: 16px;
  height: 13px;
}

/* Scrollable content container ========================================== 
 * 
 * 
 * 
 */
.scroll-container {
  box-sizing: content-box;
  border: 1px solid red; /* For demo only */
  width: 100%;
  height: 100%;
  overflow-y: scroll;
  /* Hide native scrollbar */
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE/Edge */
}
.scroll-container::-webkit-scrollbar {
  display: none;
}

/* Text input style ========================================== 
 * 
 * 
 * 
 */
input[type='text'] {
  transition: 0.2s ease;
  box-sizing: border-box;
  margin: 2px 0px;
  border: 1px solid var(--disable, #d5b589);
  border-radius: 16px;
  background: var(--darker-bg, #f1d9b8);
  padding: 4px 8px;
  min-width: 80px;
  max-width: 100%;
  height: 32px;
  color: var(--grey-text, #4d4d4d);
  font-size: 16px;
}

input[type='text']::-webkit-input-placeholder {
  opacity: 1; /* Firefox */
  color: var(--disable, #d5b589);
}

input[type='text']::-moz-placeholder {
  opacity: 1; /* Firefox */
  color: var(--disable, #d5b589);
}

input[type='text']:-ms-input-placeholder {
  opacity: 1; /* Firefox */
  color: var(--disable, #d5b589);
}

input[type='text']::-ms-input-placeholder {
  opacity: 1; /* Firefox */
  color: var(--disable, #d5b589);
}

input[type='text']::placeholder {
  opacity: 1; /* Firefox */
  color: var(--disable, #d5b589);
}

input[type='text']:focus,
input[type='text']:hover {
  outline: none;
  border: 1px solid #109b77;
}

input[type='text']:disabled {
   -webkit-appearance: none;
   opacity:1;
  cursor: not-allowed;
  border: none;
}

.correctAns /* For corrected ans, injected by js autoResizelnput() */ { 
  position: relative;
  background-image: url('https://HackettLai.github.io/picx-images-hosting/edb/label-correct.9o04sulkc0.png') !important;
  background-position: 8px center !important;
  background-size: 16px 16px !important;
  background-repeat: no-repeat !important;
  padding-left: 32px !important;
  color: #07969f !important;
}
/*
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 * 
 *  BELOW: For Demo Only, No Use In Actual Function =====================
 * 
 * 
 */
/* Reset default margins */
* {
  margin: 0;
}

/* Center content in viewport with flex layout */
body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 20px;
  margin: 0;
  background: #f5efe6;
  width: 100vw;
  height: 100dvh;
  max-height: 100dvh;
  color: var(--grey-text, #4d4d4d);
  font-size: 16px;
  line-height: 1.5;
  font-family: Arial, sans-serif;
}

.demo-container {
  position: relative;
  box-sizing: border-box;
  border: 1px solid; /* For demo only */
  background: #f6e5cd;
  padding: 20px;
  width: 400px;
  min-width: 200px;
  max-width: 100vw;
  height: 600px;
  min-height: 200px;
  max-height: 100dvh;
}

.demo-container::after {
  display: block;
  position: absolute;
  top: 0;
  transform: translate(-20px, -100%);
  background-color: black;
  padding: 0 8px;
  content: 'demo-container';
  color: white;
  font-size: 12px;
}

.scroll-wrapper::after {
  display: block;
  position: absolute;
  top: 0;
  transform: translateY(-100%);
  background-color: black;
  padding: 0 8px;
  content: 'scroll-wrapper';
  color: white;
  font-size: 12px;
}

.scroll-container::after {
  display: block;
  position: absolute;
  top: 0;
  right: 0;
  transform: translateX(-16px);
  background-color: red;
  padding: 0 8px;
  content: 'scroll-container';
  color: white;
  font-size: 12px;
}

.scroll-container > * {
  padding-bottom: 20px;
}

/* Resize handle for the demo container */
.resize-handle {
  position: absolute;
  right: 0;
  bottom: 0;
  opacity: 0.7;
  z-index: 10;
  transition: opacity 0.2s;
  cursor: nw-resize;
  border-radius: 0 0 3px 0;
  background: linear-gradient(-45deg, transparent 0%, transparent 30%, #999 30%, #999 35%, transparent 35%, transparent 40%, #999 40%, #999 45%, transparent 45%, transparent 50%, #999 50%, #999 55%, transparent 55%);
  width: 20px;
  height: 20px;
}
.resize-handle:hover {
  opacity: 1;
  background: linear-gradient(-45deg, transparent 0%, transparent 30%, #666 30%, #666 35%, transparent 35%, transparent 40%, #666 40%, #666 45%, transparent 45%, transparent 50%, #666 50%, #666 55%, transparent 55%);
}
.resize-handle:active {
  opacity: 1;
  background: linear-gradient(-45deg, transparent 0%, transparent 30%, #333 30%, #333 35%, transparent 35%, transparent 40%, #333 40%, #333 45%, transparent 45%, transparent 50%, #333 50%, #333 55%, transparent 55%);
}
/* Utility classes for resize operation */
.resizing {
  -webkit-user-select: none !important;
  -moz-user-select: none !important;
  -ms-user-select: none !important;
  user-select: none !important;
}
.resizing * {
  pointer-events: none !important;
}

b {
  color: red;
  font-weight: bold;
}