@media (max-width: 980px) and (min-width: 821px) {
  .topbar-meta {
    display: none;
  }

  .quiz-main {
    padding-right: 26px;
    padding-left: 26px;
  }

  .question-card {
    grid-template-columns: minmax(0, 1fr) 88px;
  }

  .question-copy {
    padding-right: 24px;
    padding-left: 24px;
  }

  .question-title {
    font-size: 23px;
  }
}

@media (max-width: 820px) {
  .topbar-inner {
    min-height: 68px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
    flex-basis: 38px;
  }

  .topbar-meta {
    display: none;
  }

  .quiz-layout {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .quiz-main {
    padding: 27px 17px 25px;
  }

  .question-stack {
    padding: 12px 11px 14px;
  }

  .question-card {
    grid-template-columns: minmax(0, 1fr) 82px;
  }

  .question-copy {
    padding: 25px 22px;
  }

  .question-title {
    font-size: 21px;
  }

  .progress-panel {
    margin: 0 17px 25px;
    padding: 26px 20px 25px;
  }
}

@media (max-width: 460px) {
  .topbar-action {
    padding-right: 10px;
    padding-left: 10px;
  }

  .brand p,
  .quiz-context span,
  .answers-heading span {
    display: none;
  }

  .question-card {
    grid-template-columns: 1fr;
  }

  .question-index {
    grid-row: 1;
    display: grid;
    grid-template-columns: auto 1fr auto;
    min-height: 61px;
    padding: 0 18px;
    border-bottom: 1px solid var(--line);
    border-left: 0;
    text-align: left;
  }

  .question-index strong {
    margin: 0 0 0 9px;
    font-size: 36px;
  }

  .question-index em {
    margin: 0;
  }

  .question-copy {
    padding: 21px 19px 23px;
  }

  .question-title {
    font-size: 19px;
  }

  .option {
    grid-template-columns: 40px minmax(0, 1fr) 18px;
    gap: 9px;
    padding-right: 10px;
  }

  .option-letter {
    width: 33px;
    height: 33px;
  }

  .option-text {
    font-size: 13px;
  }

  .result-head {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 18px;
  }

  .result-image {
    max-height: 280px;
  }

  .result-code {
    font-size: 42px;
  }

  .result-body {
    padding: 19px;
  }

  .dimension-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 360px) {
  .shell {
    width: min(calc(100% - 20px), 1180px);
  }

  .brand {
    gap: 9px;
  }

  .brand h1 {
    white-space: nowrap;
    font-size: 14px;
  }

  .topbar-actions {
    gap: 6px;
  }

  .topbar-action {
    width: 40px;
    padding: 0;
  }

  .topbar-action > span:last-child {
    display: none;
  }

  .question-title {
    font-size: 18px;
  }

  .control-button {
    padding-right: 13px;
    padding-left: 13px;
  }

  .control-button.primary {
    min-width: 112px;
  }

  .progress-panel {
    margin-right: 12px;
    margin-left: 12px;
    padding-right: 16px;
    padding-left: 16px;
  }

  .question-nav {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .nav-dot {
    height: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .option,
  .progress-value {
    transition: none;
  }
}