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/* Lightweight interaction polish for the existing CBT and analysis screens. */
@media(prefers-reduced-motion:no-preference){
  html{scroll-behavior:smooth}
  #root{animation:cbt-page-enter .34s ease-out both}
  .exam-card,.series-card,.option,.palette-number,.subject-tabs button,.results-panel,.subject-results>*,.analysis-page,.analysis-table tbody tr,.answer-feedback{transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background-color .2s ease}
  .exam-card:hover,.series-card:hover{transform:translateY(-3px);box-shadow:0 14px 34px #1c362616}
  .option:not(:disabled):hover{transform:translateY(-1px)}
  .option:focus-visible,.palette-number:focus-visible,button:focus-visible,a:focus-visible{outline:3px solid #72a18d;outline-offset:2px}
  .palette-number:hover{transform:scale(1.045)}
  .results-panel,.answer-feedback{animation:result-card-enter .42s cubic-bezier(.2,.7,.25,1) both}
  .subject-results>*{animation:result-card-enter .42s ease both}
  .subject-results>*:nth-child(2){animation-delay:.06s}.subject-results>*:nth-child(3){animation-delay:.12s}
  .analysis-table tbody tr:hover{background:#f6f8f5}
  .correct-option{transition:background-color .2s ease,transform .2s ease}
  .option.chosen{animation:option-selected .18s ease-out both}
}
@keyframes cbt-page-enter{from{opacity:.82;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}
@keyframes result-card-enter{from{opacity:.65;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
@keyframes option-selected{from{transform:scale(.99)}to{transform:scale(1)}}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto!important}
  #root{animation:none!important}
}