.sin1{--s-ink:#20342e;--s-green:#246549;--s-muted:#61756c;--s-line:#dce5df;--s-tint:#f2f7f3;color:var(--s-ink);max-width:860px;margin:0 auto;font-family:inherit;line-height:1.7}.sin1 [hidden]{display:none!important}.sin1 *{box-sizing:border-box}.sin1 h2,.sin1 h3,.sin1 p,.sin1 ol{margin-top:0}.sin1 h2{font-size:clamp(26px,4vw,38px);line-height:1.35;margin:20px 0 16px;color:var(--s-ink)}.sin1 h3{font-size:23px;margin:0}.sin1 p{margin-bottom:18px}.sin1-panel{background:#fff;border:1px solid var(--s-line);border-radius:24px;padding:clamp(22px,5vw,44px);margin-bottom:24px;box-shadow:0 10px 36px #20342e06}.sin1-tag{display:inline-flex;padding:5px 12px;border-radius:8px;background:var(--s-tint);font-size:13px;font-weight:650;letter-spacing:.04em;color:var(--s-green)}.sin1-lead{font-size:18px;color:#4c6257}.sin1-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;border-top:1px solid var(--s-line);border-bottom:1px solid var(--s-line);padding:22px 0;margin:28px 0}.sin1-facts strong{display:block;font-size:21px}.sin1-facts span{display:block;font-size:13px;color:var(--s-muted);margin-top:4px}.sin1-muted{color:var(--s-muted);font-size:14px}.sin1-small{font-size:13px!important;line-height:1.8;color:var(--s-muted);margin:18px 0 0!important}.sin1-label{display:block;font-size:15px;font-weight:650;margin:28px 0 8px}.sin1-label span{color:var(--s-muted);font-weight:400}.sin1-input{display:block;width:100%;max-width:390px;border:1px solid #bdcec2;background:#fff;color:var(--s-ink);border-radius:12px;padding:12px 15px;font:inherit;font-size:16px;margin-bottom:20px}.sin1-btn{appearance:none;display:inline-flex;justify-content:center;align-items:center;gap:14px;padding:13px 23px;border-radius:12px;font:inherit;font-size:15px;font-weight:650;line-height:1.5;cursor:pointer;border:1px solid transparent;min-height:48px;transition:background .15s,transform .15s;text-decoration:none!important}.sin1-primary{background:var(--s-green);color:#fff}.sin1-primary:hover{background:#194b35}.sin1-secondary{background:#fff;color:var(--s-ink);border-color:#cbd8cf}.sin1-secondary:hover{background:var(--s-tint)}.sin1-btn:disabled{opacity:.45;cursor:default}.sin1 button:focus-visible,.sin1 input:focus-visible{outline:3px solid #83b39c;outline-offset:3px}.sin1-progress-head{display:flex;justify-content:space-between;gap:10px;font-size:14px;color:var(--s-muted);margin-bottom:12px;font-variant-numeric:tabular-nums}.sin1 progress{appearance:none;display:block;height:6px;border:0;border-radius:8px;width:100%;overflow:hidden;background:#e8eee9;margin-bottom:30px}.sin1 progress::-webkit-progress-bar{background:#e8eee9}.sin1 progress::-webkit-progress-value{background:var(--s-green);border-radius:8px}.sin1 progress::-moz-progress-bar{background:var(--s-green)}.sin1-question-meta{display:flex;justify-content:space-between;align-items:center;gap:14px;color:var(--s-muted);font-size:13px;margin-bottom:20px}.sin1-fieldset{border:0;padding:0;margin:0;min-width:0}.sin1-fieldset legend{font-size:clamp(20px,3vw,26px);font-weight:650;line-height:1.65;padding:0;margin-bottom:26px;width:100%;overflow-wrap:anywhere}.sin1-options{display:grid;gap:12px}.sin1-option{position:relative;display:flex;align-items:center;gap:15px;border:1px solid var(--s-line);border-radius:13px;padding:16px 18px;cursor:pointer;min-height:64px;transition:background .15s,border-color .15s;font-size:16px;font-weight:400}.sin1-option:hover{background:#f8faf8;border-color:#93b19f}.sin1-option:has(input:checked){background:var(--s-tint);border-color:var(--s-green)}.sin1-option:focus-within{outline:3px solid #83b39c;outline-offset:2px}.sin1-option input{position:absolute;opacity:0;width:1px;height:1px}.sin1-option-letter{display:inline-flex;align-items:center;justify-content:center;flex:0 0 34px;height:34px;border-radius:8px;background:#f2f5f2;color:var(--s-muted);font-size:14px;font-weight:700}.sin1-option:has(input:checked) .sin1-option-letter{color:#fff;background:var(--s-green)}.sin1-option-text{overflow-wrap:anywhere}.sin1-navigation{display:flex;justify-content:space-between;gap:12px;border-top:1px solid var(--s-line);padding-top:25px;margin-top:30px}.sin1-notice{padding:14px 18px;background:#fff7e8;border:1px solid #efd8ae;color:#79531c;border-radius:12px;margin-bottom:20px;font-size:15px}.sin1-notice:empty{display:none}.sin1-score{display:flex;align-items:baseline;gap:16px;margin:22px 0 4px}.sin1-score strong{font-size:clamp(76px,14vw,112px);font-weight:750;line-height:1.15;letter-spacing:-.06em;color:var(--s-green)}.sin1-score span{font-size:18px;color:var(--s-muted)}.sin1-grade{font-size:24px;font-weight:650;margin-bottom:6px!important}.sin1-details{display:grid;grid-template-columns:84px 1fr;gap:10px 16px;background:var(--s-tint);padding:20px;border-radius:13px;font-size:14px;margin:24px 0}.sin1-details dt{color:var(--s-muted)}.sin1-details dd{margin:0;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}.sin1-downloads{display:flex;flex-wrap:wrap;gap:10px}.sin1-section-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}.sin1-section-head span{font-size:13px;color:var(--s-muted)}.sin1 #sin1-wrong{padding-left:25px;margin-bottom:0}.sin1 #sin1-wrong li{padding-left:5px;margin:0 0 18px;line-height:1.8;overflow-wrap:anywhere}.sin1-wrong-number{display:block;color:var(--s-muted);font-size:12px;margin-bottom:3px}.sin1-restart{margin-bottom:24px}.page-content:has(.sin1){max-width:none}.page-content .sin1{font-size:16px}.page-content .sin1 button{font-family:inherit}@media(max-width:540px){.sin1-panel{border-radius:18px;padding:23px 19px}.sin1-facts{gap:12px;padding:18px 0}.sin1-facts strong{font-size:17px}.sin1-facts span{font-size:12px}.sin1-lead{font-size:16px}.sin1-option{padding:14px 12px;gap:12px;font-size:15px}.sin1-btn{padding:12px 17px}.sin1-downloads .sin1-btn{width:100%}.sin1-section-head{align-items:flex-start;flex-direction:column}.sin1-details{grid-template-columns:66px 1fr;gap:9px;padding:16px;font-size:13px}}@media print{body:has(.sin1) header,body:has(.sin1) footer,body:has(.sin1) .page-heading,.sin1-notice,.sin1-downloads,.sin1-restart{display:none!important}body:has(.sin1) .page-main,body:has(.sin1) .page-content{margin:0!important;padding:0!important;max-width:none!important}.sin1-panel{box-shadow:none;border:0;padding:20px 0}.sin1-score strong{font-size:72px}.sin1-wrong-panel{break-before:auto}.sin1 li{break-inside:avoid}.sin1 a{color:inherit}}

/* Keep the existing stacked phone flow; use the available desktop width. */
.sin1-intro-copy,.sin1-intro-action{display:contents}
@media screen and (min-width:1024px){
  .sin1-exam-page{--sin1-content-width:1100px}
  .sin1-exam-page:has(#sin1-quiz:not([hidden])),.sin1-exam-page:has(#sin1-result:not([hidden])){--sin1-content-width:900px}
  .sin1-exam-page .page-main{padding-top:122px;padding-bottom:64px}
  .sin1-exam-page .page-main>.page-heading{max-width:var(--sin1-content-width);margin:0 auto 24px}
  .sin1-exam-page .page-heading .eyebrow{font-size:12px;line-height:1.5;margin:0 0 8px}
  .sin1-exam-page .page-heading h1{font-size:34px;line-height:1.3;font-weight:650;letter-spacing:-.025em;margin:0}
  .sin1-exam-page .page-content{max-width:var(--sin1-content-width);margin:0 auto}
  .sin1-exam-page .sin1{max-width:var(--sin1-content-width)}
  .sin1-exam-page .sin1-panel{padding:30px 34px;border-radius:20px}
  .sin1-exam-page #sin1-intro{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(300px,.85fr);align-items:center;gap:36px}
  .sin1-exam-page .sin1-intro-copy,.sin1-exam-page .sin1-intro-action{display:block;min-width:0}
  .sin1-exam-page .sin1 h2{font-size:30px;line-height:1.4;font-weight:650;margin:14px 0 12px;color:var(--s-ink)}
  .sin1-exam-page .sin1-lead{font-size:16px;line-height:1.8;margin-bottom:18px}
  .sin1-exam-page .sin1-facts{padding:18px 0;margin:20px 0 18px}
  .sin1-exam-page .sin1-facts strong{font-size:19px;font-weight:650;color:var(--s-ink)}
  .sin1-exam-page .sin1-intro-copy>p:not(.sin1-lead){font-size:14px;line-height:1.8;margin-bottom:14px}
  .sin1-exam-page .sin1-intro-copy>.sin1-muted{font-size:13px!important;margin-bottom:0!important}
  .sin1-exam-page .sin1-intro-action{padding:26px;background:var(--s-tint);border:1px solid var(--s-line);border-radius:16px}
  .sin1-exam-page .sin1-label{font-size:14px;margin:0 0 12px}
  .sin1-exam-page .sin1-label span{display:block;font-size:13px;margin-top:4px}
  .sin1-exam-page .sin1-input{max-width:none;margin-bottom:16px}
  .sin1-exam-page #sin1-start{width:100%;min-height:50px}
  .sin1-exam-page .sin1-intro-action .sin1-small{font-size:12px!important;margin-top:16px!important}
  .sin1-exam-page #sin1-quiz{padding:24px 30px}
  .sin1-exam-page .sin1-progress-head{margin-bottom:8px}
  .sin1-exam-page .sin1 progress{margin-bottom:20px}
  .sin1-exam-page .sin1-question-meta{margin-bottom:16px}
  .sin1-exam-page .sin1-fieldset legend{font-size:22px;line-height:1.6;margin-bottom:20px}
  .sin1-exam-page .sin1-options{gap:10px}
  .sin1-exam-page .sin1-option{padding:12px 16px;min-height:58px;font-size:15px}
  .sin1-exam-page .sin1-navigation{padding-top:18px;margin-top:20px}
  .sin1-exam-page #sin1-quiz-tip{margin-top:12px!important}
}

/* Preserve the reader's viewport while replacing a question. */
.sin1-exam-page:has(#sin1-quiz:not([hidden])){overflow-anchor:none}
.sin1 #sin1-quiz{overflow-anchor:none}
.sin1-fieldset legend:focus{outline:none}
.sin1-sizing{position:fixed;left:0;top:0;height:0;overflow:hidden;visibility:hidden;pointer-events:none;contain:layout style;--sin1-question-height:0px;--sin1-option-height:0px}
@media screen and (min-width:1024px){
  .sin1-exam-page #sin1-quiz .sin1-fieldset legend{min-height:var(--sin1-question-height,0px)}
  .sin1-exam-page #sin1-quiz .sin1-option{min-height:max(58px,var(--sin1-option-height,0px))}
}