.quiz-shell {
  --quiz-ink: #112b36;
  --quiz-blue: #245c9e;
  --quiz-muted: #566975;
  --quiz-border: #cdd7dc;
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(0, 2fr);
  max-width: 1376px;
  min-height: 750px;
  margin: 0 auto;
  background: #fff;
  color: var(--quiz-ink);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.55;
}
.quiz-shell * { box-sizing: border-box; }
.quiz-shell [hidden] { display: none !important; }
.quiz-sidebar { display: flex; flex-direction: column; padding: 64px 48px 40px 64px; background: #f4f7f8; }
.quiz-title { margin: 0 0 20px; font-size: clamp(36px, 3.4vw, 49px); line-height: 1.1; letter-spacing: -2px; font-weight: 600; }
.quiz-intro { margin: 0; max-width: 260px; color: var(--quiz-muted); font-size: 15px; line-height: 1.7; }
.quiz-steps { display: flex; flex-direction: column; gap: 0; margin: 52px 0 48px; padding: 0; list-style: none; }
.quiz-step { position: relative; padding: 0 0 24px; color: #677884; }
.quiz-step:last-child { padding-bottom: 0; }
.quiz-step:not(:last-child)::after { content: ''; position: absolute; top: 38px; bottom: 5px; left: 18px; width: 1px; background: #ced9df; }
.quiz-step-static, .quiz-step-button { display: flex; align-items: center; gap: 15px; min-height: 38px; }
.quiz-step-button { width: 100%; padding: 0; border: 0; background: none; color: inherit; font: inherit; text-align: left; cursor: pointer; }
.quiz-step-number { display: inline-flex; flex-shrink: 0; align-items: center; justify-content: center; width: 37px; height: 37px; border: 1px solid #c9d4db; border-radius: 50%; background: #f4f7f8; font-size: 12px; font-weight: 600; }
.quiz-step-label { font-size: 14px; font-weight: 500; }
.quiz-step-current { color: var(--quiz-blue); }
.quiz-step-current .quiz-step-number { color: #fff; border-color: var(--quiz-blue); background: var(--quiz-blue); }
.quiz-step-current .quiz-step-label { font-weight: 700; }
.quiz-step-done { color: var(--quiz-ink); }
.quiz-step-done .quiz-step-number { color: var(--quiz-blue); border-color: #a6bfdf; background: #eaf1fc; }
.quiz-sidebar-note { display: flex; gap: 10px; margin-top: auto; padding-top: 18px; color: var(--quiz-muted); }
.quiz-sidebar-note p { margin: 0; max-width: 236px; font-size: 12px; line-height: 1.8; }
.quiz-note-mark { display: inline-flex; align-items: center; justify-content: center; flex: 0 0 17px; height: 17px; margin-top: 2px; border: 1px solid #7c8d98; border-radius: 50%; font-family: Georgia, serif; font-size: 12px; font-style: italic; }
.quiz-home-link { align-self: flex-start; margin-top: 24px; color: var(--quiz-ink); font-size: 13px; text-decoration: underline; text-underline-offset: 4px; }
.quiz-main { padding: 55px 64px 56px; min-width: 0; }
.quiz-status { margin: 0 0 35px; color: var(--quiz-muted); font-size: 13px; line-height: 1.7; }
.quiz-status span { margin: 0 5px; }
.quiz-stage { margin: 0 0 14px; color: var(--quiz-blue); font-size: 12px; font-weight: 600; }
.quiz-live { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; }
.quiz-fieldset { min-width: 0; margin: 0; padding: 0; border: 0; }
.quiz-legend { width: 100%; padding: 0; font-size: clamp(25px, 2.4vw, 33px); line-height: 1.25; font-weight: 600; letter-spacing: -0.9px; }
.quiz-hint { margin: 14px 0 29px; color: var(--quiz-muted); font-size: 14px; line-height: 1.7; }
.quiz-options { display: grid; gap: 11px; }
.quiz-option { display: flex; align-items: center; gap: 15px; min-height: 68px; padding: 17px 21px; border: 1px solid var(--quiz-border); border-radius: 4px; color: var(--quiz-ink); background: #fff; cursor: pointer; transition: border-color .15s ease, background-color .15s ease; }
.quiz-option:hover { border-color: #648db8; background: #fbfcff; }
.quiz-option-selected, .quiz-option-selected:hover { border-color: var(--quiz-blue); background: #eff5ff; }
.quiz-option:focus-within { outline: 2px solid var(--quiz-blue); outline-offset: 3px; }
.quiz-radio { appearance: auto; flex: 0 0 18px; width: 18px; height: 18px; margin: 0; accent-color: var(--quiz-blue); cursor: pointer; }
.quiz-option-text { font-size: 16px; font-weight: 500; line-height: 1.6; }
.quiz-fieldset-secondary { margin-top: 36px; }
.quiz-fieldset-secondary .quiz-legend { font-size: 23px; letter-spacing: -0.6px; }
.quiz-fieldset-secondary .quiz-hint { margin: 9px 0 18px; font-size: 13px; }
.quiz-options-compact { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.quiz-options-compact .quiz-option { min-height: 62px; padding: 14px 16px; gap: 11px; }
.quiz-options-compact .quiz-option-text { font-size: 15px; }
.quiz-actions { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: 33px; }
.quiz-primary { display: inline-flex; align-items: center; justify-content: center; gap: 21px; min-height: 56px; padding: 14px 24px; border: 1px solid var(--quiz-blue); border-radius: 4px; background: var(--quiz-blue); color: #fff; font-family: inherit; font-size: 14px; font-weight: 600; line-height: 1.5; text-align: center; text-decoration: none; cursor: pointer; transition: background .15s ease; }
.quiz-primary:hover { background: #19477d; border-color: #19477d; }
.quiz-primary svg { flex: 0 0 20px; }
.quiz-back { min-height: 44px; padding: 10px 0; border: 0; background: none; color: var(--quiz-ink); font-family: inherit; font-size: 14px; font-weight: 500; text-decoration: underline; text-underline-offset: 4px; cursor: pointer; }
.quiz-bottom-note { margin: 22px 0 0; padding-top: 20px; border-top: 1px solid #e1e7eb; color: var(--quiz-muted); font-size: 13px; line-height: 1.7; }
.quiz-error { margin: 12px 0 0; color: #a62d29; font-size: 13px; line-height: 1.6; }
.quiz-context { margin: 18px 0 0; padding: 0 0 0 13px; border-left: 2px solid #adc5e5; color: var(--quiz-muted); font-size: 12px; line-height: 1.8; }
.quiz-summary-title { margin: 0; font-size: clamp(29px, 3vw, 40px); line-height: 1.15; letter-spacing: -1.2px; font-weight: 600; }
.quiz-summary-intro { margin: 18px 0 29px; color: var(--quiz-muted); font-size: 14px; line-height: 1.8; }
.quiz-summary-list { margin: 0 0 28px; }
.quiz-summary-row { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 18px 0; border-bottom: 1px solid #dfe6eb; }
.quiz-summary-row:first-child { border-top: 1px solid #dfe6eb; }
.quiz-summary-row dt { color: var(--quiz-muted); font-size: 12px; }
.quiz-summary-row dd { margin: 6px 0 0; font-size: 14px; font-weight: 600; }
.quiz-modify { flex-shrink: 0; min-height: 44px; padding: 8px 0 8px 6px; border: 0; color: var(--quiz-blue); background: none; font: inherit; font-size: 12px; text-decoration: underline; text-underline-offset: 3px; cursor: pointer; }
.quiz-next h3 { margin: 0 0 10px; font-size: 19px; letter-spacing: -0.4px; font-weight: 600; }
.quiz-next p { margin: 0; color: var(--quiz-muted); font-size: 13px; line-height: 1.9; }
.quiz-reading { margin-top: 26px; padding: 23px 25px; background: #f4f7f8; border-radius: 4px; }
.quiz-reading p { margin: 0 0 13px; color: var(--quiz-muted); font-size: 13px; line-height: 1.8; }
.quiz-reading a { display: inline-flex; align-items: center; gap: 12px; color: var(--quiz-blue); font-size: 13px; font-weight: 600; text-decoration: none; }
.quiz-reading a:hover { text-decoration: underline; text-underline-offset: 4px; }
.quiz-details { margin-top: 22px; color: var(--quiz-muted); font-size: 12px; line-height: 1.8; }
.quiz-details summary { width: fit-content; min-height: 38px; padding: 7px 0; color: var(--quiz-ink); font-size: 13px; cursor: pointer; }
.quiz-details p { margin: 10px 0; }
.quiz-shell :is(button, a, summary, [tabindex]):focus-visible { outline: 2px solid var(--quiz-blue); outline-offset: 4px; }
.quiz-radio:focus-visible { outline: 0; }
.quiz-stage:focus, .quiz-summary-title:focus { outline: none; }
@media (min-width: 1600px) {
  .quiz-shell { min-height: 780px; }
}
@media (max-width: 1060px) {
  .quiz-sidebar { padding: 50px 30px; }
  .quiz-main { padding: 47px 40px; }
  .quiz-title { font-size: 40px; }
  .quiz-status { margin-bottom: 28px; }
}
@media (max-width: 799px) {
  .quiz-shell { display: block; min-height: 0; }
  .quiz-sidebar { padding: 31px 25px 22px; }
  .quiz-title { font-size: 35px; letter-spacing: -1.2px; margin-bottom: 10px; }
  .quiz-title br { display: none; }
  .quiz-intro { max-width: 460px; font-size: 13px; }
  .quiz-steps { flex-direction: row; justify-content: space-between; gap: 12px; margin: 27px 0 0; }
  .quiz-step { flex: 1 1 0; padding: 0; }
  .quiz-step:not(:last-child)::after { display: none; }
  .quiz-step-static, .quiz-step-button { gap: 8px; }
  .quiz-step-number { width: 29px; height: 29px; font-size: 12px; }
  .quiz-step-label { font-size: 13px; }
  .quiz-sidebar-note, .quiz-home-link { display: none; }
  .quiz-main { padding: 29px 25px 40px; }
  .quiz-status { font-size: 12px; margin-bottom: 24px; }
  .quiz-stage { font-size: 13px; margin-bottom: 12px; }
  .quiz-legend { max-width: 550px; font-size: 28px; }
  .quiz-hint { margin: 12px 0 24px; font-size: 14px; }
  .quiz-options { gap: 10px; }
  .quiz-option { min-height: 66px; padding: 15px 17px; gap: 13px; }
  .quiz-option-text { font-size: 15px; }
  .quiz-options-compact .quiz-option { padding: 13px 12px; }
  .quiz-options-compact .quiz-option-text { font-size: 14px; }
  .quiz-primary { min-height: 51px; padding: 13px 21px; font-size: 13px; gap: 14px; }
  .quiz-summary-title { font-size: 34px; }
}
@media (max-width: 390px) {
  .quiz-main { padding-right: 20px; padding-left: 20px; }
  .quiz-sidebar { padding-right: 20px; padding-left: 20px; }
  .quiz-step-label { font-size: 12px; }
  .quiz-step-static, .quiz-step-button { gap: 6px; }
  .quiz-options-compact { grid-template-columns: 1fr; }
  .quiz-summary-actions { align-items: stretch; flex-direction: column-reverse; gap: 9px; }
}
@media (prefers-reduced-motion: reduce) {
  .quiz-option, .quiz-primary { transition: none; }
}