.q-visual{margin:0 0 18px;border:1px solid #dce3ed;border-radius:14px;overflow:hidden;background:#f8fafc}
.q-visual [hidden]{display:none!important}
.q-visual-tools{display:flex;align-items:center;gap:4px;padding:8px;background:#f3f6fa;border-bottom:1px solid #dce3ed}
.q-visual-tools button{font-family:inherit;font-size:13px;font-weight:600;line-height:1.3;padding:9px 13px;border:0;border-radius:8px;background:transparent;color:#52617a;cursor:pointer}
.q-visual-tools button[aria-pressed=true]{background:#355fd3;color:#fff;box-shadow:0 4px 12px #355fd326}
.q-visual-tools button:focus-visible{outline:3px solid #2686d3;outline-offset:1px}
.q-visual-tools span{margin-left:auto;padding:0 7px;color:#64718a;font-family:inherit;font-size:11px;line-height:1.4}
.q-visual-image .q-media,.q-visual-image .hero-image{margin:0!important;border-radius:0!important}
.q-visual-stage{height:680px;background:#e4edf0}
.q-visual-stage iframe{width:100%;height:100%;display:block;border:0}
@media(max-width:600px){.q-visual-tools span{display:none}.q-visual-stage{height:580px}.q-visual-tools button{min-height:40px}}

.question-view-bar{margin:8px 0 18px;scroll-margin-top:110px;border:1px solid var(--border,#dce3ed);border-radius:14px;padding:12px;background:var(--card,#f8fafc);color:var(--text,#243944)}
.question-view-bar [hidden]{display:none!important}
.question-view-switch,.question-view-filters,.question-view-navigation{display:flex;align-items:center;gap:8px}
.question-view-bar button{font:inherit;font-size:13px;font-weight:600;border:1px solid var(--border,#dce3ed);border-radius:8px;padding:10px 15px;color:inherit;background:transparent;cursor:pointer}
.question-view-bar button[aria-pressed=true]{background:#355fd3;border-color:#355fd3;color:white}
.question-view-bar button:disabled{opacity:.4;cursor:default}
.question-view-bar button:focus-visible{outline:3px solid #2686d3;outline-offset:2px}
.question-view-bar p{margin:14px 0 10px;font-size:13px;line-height:1.5}
.question-view-navigation{justify-content:space-between;margin-top:14px;padding-top:12px;border-top:1px solid var(--border,#dce3ed)}
#threeViewPosition{font-size:12px;text-align:center;line-height:1.4}
.three-view-fallback{display:none}
.three-question-view #qList .q-card:not(.q-current),.three-question-view #loadMoreBtn{display:none}
.three-question-view .three-view-fallback{display:block;margin:0 0 16px;font-size:13px;line-height:1.5;color:var(--text-light,#73867d)}
@media(max-width:600px){.question-view-navigation button{font-size:11px;padding:10px 8px}.question-view-bar{padding:10px}.question-view-navigation{gap:6px}}

.three-card-navigation{display:none}
.three-question-view .three-card-navigation{display:flex;justify-content:space-between;gap:10px;border-top:1px solid var(--border,#dce3ed);margin-top:16px;padding-top:16px}
.three-card-navigation button{font:inherit;font-size:13px;font-weight:600;padding:11px 14px;border:1px solid var(--border,#dce3ed);border-radius:9px;color:var(--text,#243944);background:var(--card,#f8fafc);cursor:pointer}
.three-card-navigation button:disabled{opacity:.4;cursor:default}
.three-card-navigation button:focus-visible{outline:3px solid #2686d3;outline-offset:2px}
@media(max-width:600px){.three-card-navigation button{font-size:12px;padding:10px}}

.q-visual-tools button:not([aria-pressed=true]):hover{background:#ffffffb3;color:#355fd3}

/* Immersive practice: the existing question keeps its answer handlers. */
.q-scene-panel{display:contents}
.q-scene-thumbnail,.q-scene-exit{display:none}
body.scene-immersive{overflow:hidden}
#qList .q-card.q-scene-immersive{position:fixed;inset:0;z-index:1000010;width:100%;height:100dvh;max-width:none;margin:0;padding:0;border:0;border-radius:0;background:#edf1f6;box-shadow:none;transform:none;transition:none;overflow:hidden;text-align:start}
#qList .q-scene-immersive>.q-visual{position:absolute;inset:0;margin:0;border:0;border-radius:0}
#qList .q-scene-immersive .q-visual-tools{display:none}
#qList .q-scene-immersive .q-visual-stage{height:100%;width:100%}
#qList .q-scene-immersive>.q-scene-panel{position:absolute;z-index:2;left:18px;top:74px;bottom:18px;width:320px;display:flex;flex-direction:column;gap:16px;overflow:auto;overscroll-behavior:contain;scrollbar-width:thin;padding:18px;border:1px solid var(--border,#dce3ed);border-radius:22px;background:var(--card,#fbfcfe);color:var(--text,#243944);box-shadow:0 10px 36px #172b4d1a}
#qList .q-scene-immersive .q-scene-panel>*{flex-shrink:0}
#qList .q-scene-immersive .q-header{margin:0;gap:5px;align-items:center}
#qList .q-scene-immersive .q-badges{gap:5px;flex-wrap:wrap}
#qList .q-scene-immersive .q-num,#qList .q-scene-immersive .q-group-badge{font-size:10px;padding:6px 8px;border-radius:8px}
#qList .q-scene-immersive .q-actions{gap:3px}
#qList .q-scene-immersive .q-share-btn,#qList .q-scene-immersive .q-speak-btn{width:30px;height:30px;min-width:30px;padding:5px}
#qList .q-scene-immersive .q-text{font-size:18px;line-height:1.45;margin:0;overflow-wrap:anywhere}
#qList .q-scene-immersive .q-scene-thumbnail{display:block;width:100%;height:145px;object-fit:contain;background:#f1f4f8;border-radius:12px}
#qList .q-scene-immersive .q-signs{margin:0}
#qList .q-scene-immersive .q-signs-header{gap:7px;margin-bottom:8px}
#qList .q-scene-immersive .q-signs-heading{font-size:11px}
#qList .q-scene-immersive .q-signs-toggle{font-size:11px;min-height:30px;padding:5px 9px}
#qList .q-scene-immersive .q-signs-list{gap:7px}
#qList .q-scene-immersive .q-sign-card{flex-basis:100%;padding:8px 10px;gap:10px;border-radius:11px}
#qList .q-scene-immersive .q-sign-icon{width:38px;height:38px;flex-basis:38px}
#qList .q-scene-immersive .q-sign-copy{font-size:12px;line-height:1.3}
#qList .q-scene-immersive .q-sign-copy strong{font-size:13px}
#qList .q-scene-immersive .q-options{gap:8px}
#qList .q-scene-immersive .q-opt{padding:11px 10px;gap:9px;border-radius:12px;font-size:14px;line-height:1.45;min-height:44px}
#qList .q-scene-immersive .q-opt-num{width:26px;height:26px;min-width:26px;font-size:12px}
#qList .q-scene-immersive .three-card-navigation{display:flex;gap:7px;margin:0;padding:12px 0 0;border-top:1px solid var(--border,#dce3ed)}
#qList .q-scene-immersive .three-card-navigation button{flex:1;font-size:11px;padding:10px 7px}
#qList .q-scene-immersive .three-card-navigation button:last-child{background:#355fd3;color:#fff;border-color:#355fd3}
#qList .q-scene-immersive .q-report-btn{align-self:flex-start;margin:0;font-size:11px}
#qList .q-scene-immersive .q-scene-exit{position:absolute;z-index:3;left:18px;top:18px;display:block;height:40px;padding:0 16px;border:1px solid #dce3ed;border-radius:24px;background:#fff;color:#355fd3;font-family:inherit;font-size:13px;font-weight:600;line-height:1.2;cursor:pointer;box-shadow:0 3px 16px #172b4d12}
#qList .q-scene-immersive .q-scene-exit:focus-visible{outline:3px solid #6388e4;outline-offset:3px}
@media(max-width:899px){
 #qList .q-scene-immersive>.q-visual{bottom:44dvh}
 #qList .q-scene-immersive>.q-scene-panel{left:0;right:0;top:56dvh;bottom:0;width:auto;padding:18px 20px;border-radius:22px 22px 0 0;gap:12px}
 #qList .q-scene-immersive .q-scene-exit{top:10px;left:10px;height:34px;font-size:11px;padding:0 12px}
 #qList .q-scene-immersive .q-scene-thumbnail{height:110px}
 #qList .q-scene-immersive .q-signs{order:4}
 #qList .q-scene-immersive .q-report-btn{order:5}
}

#qList .q-card:where(:has(.q-scene-panel):not(.q-scene-immersive)){display:flex;flex-direction:column}
#qList .q-card:not(.q-scene-immersive)>.q-visual{order:2}
#qList .q-card:not(.q-scene-immersive) .q-scene-panel>.q-header{order:1}
#qList .q-card:not(.q-scene-immersive) .q-scene-panel>.q-signs{order:3}
#qList .q-card:not(.q-scene-immersive) .q-scene-panel>.q-text{order:4}
#qList .q-card:not(.q-scene-immersive) .q-scene-panel>.q-options{order:5}
#qList .q-card:not(.q-scene-immersive) .q-scene-panel>.q-report-btn{order:6;align-self:flex-start}
#qList .q-card:not(.q-scene-immersive) .q-scene-panel>.three-card-navigation{order:7}
#qList .q-card.q-scene-immersive{display:block!important}

.q-reset-question{display:none}
#qList .q-scene-immersive .q-reset-question{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;min-width:30px;flex-shrink:0;padding:5px;border:0;border-radius:10px;background:transparent;color:var(--text-light,#64748b);cursor:pointer}
.q-reset-question svg{width:24px;height:24px}
#qList .q-scene-immersive .q-reset-question:hover{border-color:#355fd3;color:#355fd3}
.q-reset-question:focus-visible{outline:3px solid #2686d3;outline-offset:2px}
.q-reset-question:disabled{opacity:.5;cursor:wait}

/* Phone workspace: two independent, scroll-safe panes and an optional full scene. */
.q-scene-expand{display:none}
.q-scene-original{display:contents}
.q-scene-original>summary{display:none}
@media(min-width:900px){.q-scene-original::details-content{display:contents;content-visibility:visible}}
@media(max-width:899px){
 #qList .q-card.q-scene-immersive{--scene-height:58dvh;isolation:isolate}
 #qList .q-scene-immersive>.q-visual{height:var(--scene-height);bottom:auto}
 #qList .q-scene-immersive>.q-scene-panel{top:var(--scene-height);padding:14px max(14px,env(safe-area-inset-right)) max(20px,env(safe-area-inset-bottom)) max(14px,env(safe-area-inset-left));gap:12px;border-radius:18px 18px 0 0;touch-action:pan-y;overflow-x:hidden}
 #qList .q-scene-immersive .q-text{font-size:16px;line-height:1.5}
 #qList .q-scene-immersive .q-header{gap:8px}
 #qList .q-scene-immersive .q-share-btn,#qList .q-scene-immersive .q-speak-btn{width:44px;height:44px;min-width:44px;padding:10px}
 #qList .q-scene-immersive .q-scene-exit{top:max(6px,env(safe-area-inset-top));left:max(8px,env(safe-area-inset-left));height:44px;max-width:58%;font-size:11px;padding:0 12px}
 #qList .q-scene-immersive .q-scene-expand{position:absolute;display:block;z-index:3;top:max(6px,env(safe-area-inset-top));right:max(8px,env(safe-area-inset-right));height:44px;max-width:39%;padding:0 10px;border:1px solid #dce3ed;border-radius:22px;background:#fff;color:#355fd3;font-family:inherit;font-size:11px;font-weight:600;line-height:1.3;cursor:pointer}
 #qList .q-scene-immersive .q-scene-original{display:block;order:3;border:1px solid var(--border,#dce3ed);border-radius:12px;overflow:hidden}
 #qList .q-scene-immersive .q-scene-original>summary{display:flex;align-items:center;min-height:44px;padding:10px 12px;cursor:pointer;font-size:13px;gap:8px}
 #qList .q-scene-immersive .q-scene-original>summary::before{content:'+';font-size:18px}
 #qList .q-scene-immersive .q-scene-original[open]>summary::before{content:'−'}
 #qList .q-scene-immersive .q-scene-thumbnail{height:auto;max-height:180px;border-radius:0}
 #qList .q-scene-immersive .q-opt{min-height:48px;font-size:15px;padding:12px}
 #qList .q-scene-immersive .q-reset-question{width:44px;height:44px;min-width:44px;padding:10px}
 #qList .q-scene-immersive .three-card-navigation button{min-height:44px;font-size:12px;overflow-wrap:anywhere}
 #qList .q-scene-immersive .q-signs-toggle{min-height:44px;font-size:12px}
 #qList .q-scene-immersive .q-report-btn{min-height:44px}
 #qList .q-scene-immersive.q-scene-focus>.q-visual{height:100%}
 #qList .q-scene-immersive.q-scene-focus>.q-scene-panel{display:none}
}
@media(max-width:899px) and (orientation:landscape){
 #qList .q-card.q-scene-immersive{--question-width:clamp(260px,36vw,320px)}
 #qList .q-scene-immersive>.q-visual{left:var(--question-width);width:calc(100% - var(--question-width));height:100%}
 #qList .q-scene-immersive>.q-scene-panel{top:56px;left:0;right:auto;bottom:0;width:var(--question-width);border-radius:0;padding:10px 12px max(12px,env(safe-area-inset-bottom));gap:10px}
 #qList .q-scene-immersive .q-scene-exit{max-width:calc(var(--question-width) - 16px)}
 #qList .q-scene-immersive .q-scene-expand{top:6px;right:8px}
 #qList .q-scene-immersive.q-scene-focus>.q-visual{left:0;width:100%}
}
@media(max-width:899px) and (orientation:landscape){
 #qList .q-scene-immersive .q-scene-exit{max-width:calc(var(--question-width) - 132px)}
 #qList .q-scene-immersive .q-scene-expand{left:calc(var(--question-width) - 120px);right:auto;max-width:112px}
}
/* A late-loading support launcher must not cover the exercise's answers. */
body.scene-immersive iframe[style*="z-index:100000"],body.scene-immersive iframe[style*="z-index: 100000"]{visibility:hidden!important;pointer-events:none!important}