/* Functional UI refinement only. Page/dialog/question/MCQ paints inherit the exact v0.5.5 stylesheets. */
.platform-dialog{scroll-padding:16px;overflow-x:hidden}
.platform-dialog .platform-head{margin-bottom:12px;gap:12px}
.platform-dialog.platform-auth{width:min(460px,calc(100vw - 32px));max-width:calc(100vw - 32px)}
.platform-auth .platform-inner{padding:24px}
.platform-auth .platform-copy{margin-bottom:20px}
.platform-auth .platform-form{margin:0;gap:8px}
.platform-auth .platform-form label{font-size:14px}
.platform-auth .platform-form button[type=submit]{width:100%;justify-self:stretch;margin-top:6px}
.platform-auth .platform-sibling-note{font-size:12px!important;margin-top:12px}
.platform-auth input{scroll-margin-block:70px}
.platform-privacy-link{background:none;border:0;border-radius:6px;text-decoration:underline;text-underline-offset:3px;color:var(--ink);font-size:13px;min-height:44px;padding:8px 0}
.platform-notice{width:min(640px,calc(100vw - 32px));max-width:calc(100vw - 32px)}
.platform-notice-toolbar{position:sticky;top:0;z-index:4;background:var(--surface);display:flex;gap:12px;align-items:center;justify-content:space-between;padding:8px 0 12px;border-bottom:1px solid var(--line)}
.platform-notice-back,.platform-language-tab{min-height:44px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);font-size:13px;padding:8px 12px;font-weight:650}
.platform-language-tabs{display:flex;gap:4px;flex-wrap:wrap}
.platform-language-tab[aria-selected=true]{background:var(--green-soft);color:var(--ink);border-color:var(--olive);text-decoration:underline;text-underline-offset:3px}
.platform-notice-text{overflow:visible;max-height:none;padding:14px 0 0}
.platform-notice-text p{font-size:14px;line-height:1.85;white-space:pre-line;margin:0}
.platform-playing .platform-head{margin-bottom:8px}
.platform-playing .platform-play-meta{margin:0;min-height:0;gap:6px;padding:0;display:flex;justify-content:flex-end}
.platform-playing .platform-play-meta:empty{display:none}
.platform-playing .platform-point-total{font-size:12px;margin:0}
.platform-playing .platform-question-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0 0 6px;min-height:76px}
.platform-playing .platform-paper-progress{border:0;border-radius:0;background:transparent;padding:4px 0 8px;margin:0 0 6px;min-height:48px;box-sizing:border-box}
.platform-playing .platform-paper-progress-title{display:flex;justify-content:space-between;align-items:baseline;gap:6px;line-height:1.5;font-size:16px;flex-wrap:wrap}
.platform-playing .platform-paper-progress-title>strong{font-variant-numeric:tabular-nums;font-size:16px;font-weight:800}
.platform-playing .platform-paper-progress-title>span{font-size:11px;line-height:1.5}
/* Identical fill/track colours to the original native paper progress bar. */
.platform-progress-track{height:7px;background:#e4e6d5;border-radius:8px;overflow:hidden;position:relative;margin-top:7px}
.platform-progress-fill{display:block;background:#7a8b5e;height:100%;border-radius:8px;transition:width 250ms ease;position:relative}
.platform-paper-progress.is-advanced .platform-progress-fill:after{content:'';position:absolute;inset:0;background:linear-gradient(100deg,transparent 20%,#fff8 50%,transparent 80%);transform:translateX(-100%);animation:kq-progress-glint 280ms ease-out 1}
@keyframes kq-progress-glint{to{transform:translateX(100%)}}
.platform-reaction-slot{height:76px;width:76px;flex:0 0 76px;margin-left:auto;position:relative;display:grid;place-items:center;pointer-events:none}
.platform-reaction-slot svg{height:76px;width:76px;display:block;overflow:visible}
.platform-reaction-slot.is-cheering:after{content:'✧';position:absolute;right:-2px;top:4px;color:var(--ochre);font-size:18px;animation:kq-small-star 1.1s ease-out 1 both}
@keyframes kq-small-star{0%,100%{opacity:0;transform:translateY(0) scale(.8)}30%,65%{opacity:1;transform:translateY(-4px) scale(1)}}
/* Large TF controls reuse original neutral answer palette for both values. Selection never signals correctness. */
.platform-playing .platform-true-false{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,8rem),1fr));gap:14px;margin:18px 0 22px}
.platform-playing .platform-true-false .platform-answer{display:flex;flex-direction:column;justify-content:center;gap:3px;align-items:center;min-height:90px;padding:14px 10px;border-radius:20px;border:2px solid var(--olive);background:#fffefa;color:var(--ink);box-shadow:0 5px 0 var(--olive);transition:transform 120ms ease,box-shadow 120ms ease,border-color 120ms ease}
.platform-playing .platform-binary-label{font-size:30px;line-height:1.2;font-weight:800;white-space:normal}
.platform-playing .platform-binary-picked{font-size:11px;font-weight:700;visibility:hidden;line-height:1.2;display:block}
.platform-playing .platform-true-false .platform-answer[aria-pressed=true]{background:#e9eddf;border:3px solid #919b75;outline:2px solid var(--cocoa);outline-offset:3px}
.platform-playing .platform-true-false .platform-answer[aria-pressed=true] .platform-binary-picked{visibility:visible}
.platform-playing .platform-true-false .platform-answer:active{transform:translateY(4px);box-shadow:0 1px 0 var(--olive)}
.platform-playing .platform-true-false .platform-answer:disabled{opacity:1;cursor:default}
.platform-playing .platform-true-false.is-large-text{grid-template-columns:1fr}
.platform-feedback-anchor{scroll-margin:12px;outline:0}
.platform-feedback-anchor:focus{outline:2px solid var(--terracotta);outline-offset:3px}
.platform-feedback-anchor .platform-decision{font-size:24px;font-weight:800;line-height:1.4}
.platform-feedback-heading{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.platform-feedback-heading .platform-decision{flex:1 1 9rem;min-width:0;padding:14px;margin:12px 0;font-size:22px}
.platform-feedback-heading .platform-reaction-slot{margin-left:0}
.platform-playing .platform-score-feedback:empty{display:none}
.platform-correction ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.platform-correction li{font-size:24px;line-height:1.8}
.platform-correction li[lang=ar],.platform-correction li[lang=ms-Arab]{font-family:"Geeza Pro","Noto Naskh Arabic",serif}
.platform-correction img{max-height:160px;object-fit:contain}
.platform-playing .platform-picture-illustration{max-height:280px}
@media(max-width:480px){.platform-dialog.platform-auth .platform-inner{padding:22px 18px}.platform-playing .platform-binary-label{font-size:26px}.platform-playing .platform-true-false .platform-answer{min-height:86px}.platform-playing .platform-paper-progress-title>strong{font-size:15px}.platform-playing .platform-picture-illustration{max-height:220px}.platform-playing .platform-question-meta{gap:6px}.platform-notice-toolbar{gap:6px}.platform-notice-back,.platform-language-tab{padding:8px;font-size:12px}}
@media(max-width:360px){.platform-playing .platform-true-false{grid-template-columns:1fr}.platform-playing .platform-paper-progress-title{font-size:14px}.platform-playing .platform-paper-progress-title>span{font-size:10px}}
@media(prefers-reduced-motion:reduce){.platform-progress-fill,.platform-playing .platform-true-false .platform-answer{transition:none!important}.platform-paper-progress.is-advanced .platform-progress-fill:after,.platform-reaction-slot.is-cheering:after{animation:none!important;display:none}.platform-reaction-slot{scroll-behavior:auto}}