/* A stable reading area and reachable controls during an active quiz. */
.quiz-header{display:flex;align-items:center;gap:18px;margin:0 0 20px}
.quiz-exit{border:0;background:transparent;color:var(--ink);min-width:44px;min-height:44px;font-size:14px;padding:8px}
.quiz-heading{min-width:0;flex:1}.quiz-brand{font-size:10px;color:var(--red);font-weight:800;letter-spacing:1.5px}
.quiz-heading h1{font-size:23px;letter-spacing:-.6px;margin:4px 0 0}.quiz-heading h1 span{font-weight:450;color:var(--muted)}
.quiz-header-right{display:flex;align-items:center;gap:14px}.quiz-header .timer{font-size:20px;white-space:nowrap}
.quiz-map-button{display:none}.quiz-card{padding:0;overflow:hidden}.quiz-content{padding:26px}
.quiz-topic{margin-bottom:14px}.quiz-controls{padding:0 26px 24px}.quiz-controls .answers{margin:0;gap:12px}
.quiz-controls .save-status{min-height:18px;margin:7px 0;text-align:center;font-size:11px;line-height:18px}
.quiz-step-buttons{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.quiz-source{font-size:10px;color:#8b8c90;display:block;margin-top:12px}
.quiz-content .question-images{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin:14px 0}
.figure-zoom{border:0;background:transparent;display:flex;align-items:center;flex-direction:column;padding:0;max-width:100%;color:#797b80;font-size:10px;gap:6px}
.figure-zoom img{display:block;margin:0;max-width:100%;width:auto;max-height:220px;object-fit:contain}
.figure-detail{overflow:auto;text-align:center}.figure-detail img{display:block;width:100%;height:auto;margin:auto}
.quiz-layout .quiz-summary{order:0;align-self:start}
@media(max-width:740px),(max-width:1000px) and (max-height:500px){
 body.quiz-focus{overflow:hidden}
 .quiz-focus #app,.quiz-focus .shell,.quiz-focus .workspace{height:100vh;height:100dvh;min-height:0;width:100%;overflow:hidden;display:block}
 .quiz-focus .sidebar,.quiz-focus .topbar{display:none}
 .quiz-focus .main{height:100%;max-width:none;padding:0;margin:0}
 .quiz-screen{height:100%;display:flex;flex-direction:column;min-height:0}
 .quiz-header{flex:0 0 auto;margin:0;padding:calc(8px + env(safe-area-inset-top)) max(12px,env(safe-area-inset-right)) 8px max(10px,env(safe-area-inset-left));gap:8px;background:#fff;border-bottom:1px solid var(--border)}
 .quiz-exit{padding:4px;font-size:19px}.quiz-exit span{display:none}
 .quiz-brand{font-size:9px}.quiz-heading h1{font-size:17px;line-height:1.3;white-space:nowrap;margin-top:2px}
 .quiz-header-right{gap:8px}.quiz-header .timer{font-size:13px;letter-spacing:0;font-weight:650}
 .quiz-map-button{display:flex;flex-direction:column;gap:1px;font-size:11px;min-height:44px;padding:4px 9px}.quiz-map-button span{font-size:10px;font-weight:450}
 .quiz-layout{flex:1;min-height:0;display:block;overflow:hidden}
 .quiz-layout .quiz-summary{display:none}
 .quiz-layout .quiz-card{height:100%;display:flex;flex-direction:column;border:0;border-radius:0;padding:0;box-shadow:none;background:#f6f5f2}
 .quiz-content{flex:1;min-height:0;overflow-y:auto;overscroll-behavior-y:contain;-webkit-overflow-scrolling:touch;padding:18px max(20px,env(safe-area-inset-right)) 18px max(20px,env(safe-area-inset-left));display:flex;flex-direction:column;scrollbar-gutter:stable}
 .quiz-question{margin-block:auto;flex:0 0 auto;min-width:0}
 .quiz-content .quiz-topic{font-size:10px;margin:0 0 14px;line-height:1.5;letter-spacing:.2px}
 .quiz-content .question-text{font-size:clamp(18px,5vw,21px);line-height:1.5;letter-spacing:-.2px;margin:0;font-weight:650}
 .quiz-content .question-images{margin:16px 0 0;min-height:145px;min-height:clamp(125px,23dvh,200px);align-items:center}
 .quiz-content .figure-zoom img{height:clamp(110px,21dvh,180px);max-height:none;width:auto;max-width:100%;margin:0}
 .quiz-source{margin-top:12px}
 .quiz-controls{flex:0 0 auto;padding:12px max(16px,env(safe-area-inset-right)) calc(12px + env(safe-area-inset-bottom)) max(16px,env(safe-area-inset-left));border-top:1px solid var(--border);background:#fff;box-shadow:0 -5px 22px #24272b05}
 .quiz-controls .answer{min-height:52px;font-size:19px}
 .quiz-step-buttons .button{min-height:44px;font-size:13px;padding:8px}
 .quiz-focus #toast{bottom:calc(178px + env(safe-area-inset-bottom));max-width:calc(100vw - 30px)}
 .quiz-focus dialog{max-height:calc(100dvh - 32px - env(safe-area-inset-top) - env(safe-area-inset-bottom));padding:22px}
 .quiz-focus dialog .question-nav{display:grid;grid-template-columns:repeat(auto-fit,minmax(44px,1fr));gap:8px}
 .quiz-focus dialog .question-nav button{width:100%;height:44px;min-width:44px}
}
@media(max-width:1000px) and (max-height:500px){
 .quiz-focus .quiz-controls{display:grid;grid-template-columns:1fr 1fr;gap:0 18px;padding-top:8px;padding-bottom:calc(6px + env(safe-area-inset-bottom))}
 .quiz-controls .answers{grid-column:1;grid-row:1}.quiz-controls .answer{min-height:44px}
 .quiz-controls .quiz-step-buttons{grid-column:2;grid-row:1}.quiz-controls .save-status{grid-column:1/-1;grid-row:2;margin:3px 0 0}
 .quiz-focus .quiz-header{padding-top:calc(3px + env(safe-area-inset-top));padding-bottom:3px}
 .quiz-focus .quiz-content{padding-top:12px;padding-bottom:12px}
 .quiz-focus #toast{bottom:calc(90px + env(safe-area-inset-bottom))}
}