html 
{
  scroll-behavior: smooth;
  margin: 0;
  overflow-x: hidden;
}

#main1
{
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  margin: 0;
  padding: 0;
}

.card 
{
  width: 90%;
  max-width: 1100px;
  height: auto;
  min-height: 200px;
  margin: 25px auto;
  display: flex;
  flex-direction: column;
  background: var(--card-bg);
  border-radius: 64px;
  color: white;
  overflow: hidden;
  position: relative;
  transform-style: preserve-3d;
  perspective: 1000px;
  transition: all 0.5s cubic-bezier(0.23, 1, 0.320, 1);
  justify-content: center;
  align-items: center;
  animation: fadeIn 1s ease-in;
}

.card-content 
{
  padding: 35px;
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
  color: white;
  align-items: flex-start;
  justify-content: center;
  height: 100%;
  font-family: Verdana, Geneva, Tahoma, sans-serif;
}

.card-content .card-para {
  text-align: left;
  align-self: stretch;
  line-height: 1.6;
}

.card-content .card-para h3 {
  margin: 8px 0 6px;
  font-size: 20px;
}

.card-content .card-para ul {
  margin: 6px 0 12px;
  padding-left: 1.2rem;
}
.card-content .card-title a 
{
  font-size: 32px;
  font-weight: 700;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text-header);
  transition: 0.3s;
  transform: translateY(0);
  padding: 0;
  cursor: pointer;
}

.card-title a:hover
{
  color: var(--text-header-a);
  transform: translateY(-3px);
}

.card-content .card-para 
{
  color: inherit;
  opacity: 0.8;
  font-size: 18px;
  cursor: default;
}

.card:hover 
{
  transform: scale(1.005);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.card:before 
{
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.1));
  transition: transform 0.5s cubic-bezier(0.23, 1, 0.320, 1);
  z-index: 1;
}

.card:hover:before 
{
  transform: translateX(-100%);
}

.card:after 
{
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.1));
  transition: transform 0.5s cubic-bezier(0.23, 1, 0.320, 1);
  z-index: 1;
}

.card:hover:after 
{
  transform: translateX(100%);
}


@media (max-width: 600px)
{
  .card:hover 
{
  transform: none;
  box-shadow: none;
}

  /* Disable hover-based pseudo-element animations on touch devices
     so a single tap will activate inner clickable elements immediately. */
  .card:before,
  .card:after,
  .card:hover:before,
  .card:hover:after {
    transform: none !important;
    transition: none !important;
    pointer-events: none !important;
  }

  /* Make answer options more responsive to touch */
  .quiz .option {
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
  }
}

.quiz{margin-top:8px}
.question{background:transparent; border:none; padding:0; margin-bottom:10px; display:block}
.q-title{font-weight:700; margin:6px 0}
.card-content .card-para .quiz .option,
.card-content .card-para .question .option,
.quiz .option{display:flex; align-items:center; padding:8px 10px; margin:8px 0; border-radius:4px; cursor:pointer; width:100%; box-sizing:border-box}
.card-content .card-para .quiz .option{flex-direction:row}
.option input{margin-right:12px; flex:0 0 auto}
.option.correct{background:#e6ffea; border-left:4px solid #3db76a}
.option.wrong{background:#ffecec; border-left:4px solid #ff6b6b}
.option.selected{outline:2px solid rgba(0,0,0,0.04)}
.feedback{margin-top:6px; color:inherit; font-style:italic; opacity:0.95}
#result{margin-top:10px; font-weight:700}
#reset-quiz{margin-left:12px;padding:4px 8px;border-radius:6px}

@media (prefers-color-scheme: dark){
  .feedback{color:#ccc}
  .option.correct{background:#163b23}
  .option.wrong{background:#3a1616}
}

.card-content .card-para .quiz .question,
.card-content .card-para .quiz .question * {
  box-sizing: border-box;
}
.card-content .card-para .quiz .option,
.card-content .card-para .quiz .option label,
.quiz .option,
.quiz .option label{
  display: block !important;
  width: 100% !important;
  padding: 8px 10px !important;
  margin: 6px 0 !important;
  white-space: normal !important;
}
.quiz .option input{margin-right:10px}