@import "https://fonts.googleapis.com/css2?family=Antonio:wght@400;700&display=swap";:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--page-bg:#eef4ff;--surface-strong:#ffffffe6;--surface-soft:#ffffffb3;--surface-accent:#eef6ff;--border-subtle:#94a3b847;--border-strong:#2563eb38;--text-strong:#10233f;--text-soft:#5e718d;--text-muted:#7a8aa3;--accent:#2563eb;--accent-strong:#1d4ed8;--accent-soft:#dbeafe;--accent-warm:#f97316;--accent-warm-soft:#ffedd5;--accent-mint:#0f9f8c;--accent-mint-soft:#d9f6f1;--shadow-lg:0 28px 70px #0f172a1f;--shadow-md:0 16px 38px #0f172a14;--shadow-sm:0 10px 24px #0f172a0f;--radius-xl:28px;--radius-lg:18px;--radius-md:14px;--feedback-correct-bg:#d8efd8;--feedback-correct-border:#2e7d3252;--feedback-correct-fg:#1f6b1f;--feedback-partial-bg:#fff3b0;--feedback-partial-border:#aa82004d;--feedback-partial-fg:#8a6300;--feedback-incorrect-bg:#fbdbdc;--feedback-incorrect-border:#b0273147;--feedback-incorrect-fg:#8e1f25;--feedback-tolerance-bg:#fff3b0;--feedback-tolerance-fg:#8a6300}*{box-sizing:border-box}html{background:radial-gradient(circle at 0% 0%, #f9731629, transparent 24%), radial-gradient(circle at 100% 8%, #0ea5e92e, transparent 28%), radial-gradient(circle at 50% 100%, #10b9811f, transparent 30%), linear-gradient(180deg, #fbfdff 0%, var(--page-bg) 100%);min-height:100%}body{min-height:100vh;color:var(--text-strong);background:linear-gradient(135deg,#ffffff38,#fff0) fixed,0 0;margin:0;font-family:Avenir Next,Segoe UI Variable,Segoe UI,sans-serif}#root{min-height:100vh}.button{color:#fff;letter-spacing:.01em;cursor:pointer;min-height:2.9rem;box-shadow:var(--shadow-sm);border:1px solid #0000;border-radius:999px;justify-content:center;align-items:center;gap:.45rem;padding:.72rem 1.2rem;font-size:.98rem;font-weight:600;transition:transform .18s,box-shadow .18s,background-color .18s,border-color .18s,color .18s;display:inline-flex}.button:hover{transform:translateY(-1px);box-shadow:0 16px 30px #2563eb2e}.button:active{transform:translateY(0)}.button.primary{background:linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 55%, #4338ca 100%)}.button.secondary{border-color:var(--border-strong);color:var(--accent-strong);background:linear-gradient(135deg,#fffffff2 0%,#eff6fff2 100%)}.button:disabled{color:#8b98aa;cursor:not-allowed;box-shadow:none;background:#dbe2eb;border-color:#0000}.button:disabled:hover,.button:disabled:active{transform:none}#inline-question-modal{border:1px solid 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#0000001f}.bg-game-trigger{cursor:pointer;background:linear-gradient(135deg,#7c3aed 0%,#4f46e5 100%);border:none;border-radius:50%;justify-content:center;align-items:center;width:72px;height:72px;transition:transform .18s,box-shadow .18s;display:flex;position:relative;box-shadow:0 4px 18px #7c3aed66}.bg-game-trigger:hover{transform:translateY(-2px);box-shadow:0 8px 24px #7c3aed80}.bg-game-icon{-webkit-user-select:none;user-select:none;font-size:32px;line-height:1;transition:opacity .6s;position:absolute}.bg-game-dropdown{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#fffffff5;border:1px solid #7c3aed38;border-radius:14px;flex-direction:column;gap:4px;min-width:160px;padding:6px;animation:.18s ease-out bgGameSlideUp;display:flex;position:absolute;bottom:calc(100% + 8px);left:0;box-shadow:0 8px 28px #00000029}@keyframes bgGameSlideUp{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.bg-game-option{color:#10233f;text-align:left;white-space:nowrap;background:0 0;border:none;border-radius:9px;padding:9px 16px;font-size:14px;font-weight:600;transition:background .12s}.bg-game-option:hover{background:#7c3aed14}.bg-game-option.bg-game-option--active{color:#fff;background:linear-gradient(135deg,#7c3aed 0%,#4f46e5 100%)}.theme-fab{flex-direction:column;align-items:center;gap:6px;width:140px;display:flex;position:relative}.theme-label{color:#0e7490;white-space:nowrap;background:#fff;border-radius:6px;padding:5px 11px;font-size:12px;font-weight:700;box-shadow:0 2px 8px #0000001f}.theme-trigger{cursor:pointer;background:linear-gradient(135deg,#0891b2 0%,#0e7490 100%);border:none;border-radius:50%;justify-content:center;align-items:center;width:72px;height:72px;transition:transform .18s,box-shadow .18s;display:flex;position:relative;box-shadow:0 4px 18px 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(width<=960px){.corner-fabs{gap:3px}.bg-game-fab,.theme-fab,.language-fab{width:95px}.bg-game-trigger,.theme-trigger,.language-trigger{width:48px;height:48px}.bg-game-label,.theme-label,.language-label{font-size:8px}}html[data-app-theme=windows-xp]{--page-bg:#dce9fa;--surface-strong:#fff;--surface-soft:#dce9fa;--surface-accent:#d3e5fa;--border-subtle:#7f9db9;--border-strong:#0a246a;--text-strong:#000;--text-soft:#333;--text-muted:#5a5a5a;--accent:#1a5fd0;--accent-strong:#0a246a;--accent-soft:#d3e5fa;--accent-warm:#ff8c00;--accent-warm-soft:#ffe1b0;--accent-mint:#3a9d23;--accent-mint-soft:#dcf3d0;--shadow-lg:3px 3px 0 #00000047;--shadow-md:2px 2px 0 #0000004d;--shadow-sm:1px 1px 0 #00000059;--radius-xl:8px;--radius-lg:6px;--radius-md:4px;background:url(/windows-xp.jpg) 50%/cover no-repeat 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#0a246a}html[data-app-theme=windows-xp] input[type=checkbox],html[data-app-theme=windows-xp] input[type=radio]{accent-color:#1a5fd0}html[data-app-theme=windows-xp] .button{color:#000;text-shadow:0 1px #ffffffb3;background:linear-gradient(#fdfdfd 0%,#ece9df 48%,#d4d0c8 52%,#dedad0 100%);border:1px solid #8c8c8c;border-radius:3px;font-family:Tahoma,Verdana,sans-serif;font-weight:400;box-shadow:inset 1px 1px #ffffffe6,inset -1px -1px #00000014}html[data-app-theme=windows-xp] .button:hover{color:#000;border-color:#3c7fb1;transform:none;box-shadow:inset 1px 1px #fffffff2,0 0 0 1px #3c7fb140}html[data-app-theme=windows-xp] .button:active{background:linear-gradient(#d4d0c8 0%,#ece9df 100%);transform:translateY(1px);box-shadow:inset 1px 1px 2px #00000040}html[data-app-theme=windows-xp] .button.primary{border:2px solid #3c7fb1}html[data-app-theme=windows-xp] .button.secondary{color:#000;border:1px solid #8c8c8c}html[data-app-theme=windows-xp] .button:disabled{color:#7a7a7a;background:#ece9df;border-color:#b8b8b8}html[data-app-theme=windows-xp] .link-button{color:#000;text-shadow:0 1px #ffffffb3;background:linear-gradient(#fdfdfd 0%,#ece9df 48%,#d4d0c8 52%,#dedad0 100%);border:1px solid #8c8c8c;border-radius:3px;font-family:Tahoma,Verdana,sans-serif;font-weight:400;box-shadow:inset 1px 1px #ffffffe6,inset -1px -1px #00000014}html[data-app-theme=windows-xp] .link-button:hover{color:#000;border-color:#3c7fb1;transform:none;box-shadow:inset 1px 1px #fffffff2,0 0 0 1px #3c7fb140}html[data-app-theme=windows-xp] .link-button:active{background:linear-gradient(#d4d0c8 0%,#ece9df 100%);transform:translateY(1px);box-shadow:inset 1px 1px 2px #00000040}html[data-app-theme=windows-xp] .link-button--secondary{color:#000;background:linear-gradient(#fdfdfd 0%,#ece9df 48%,#d4d0c8 52%,#dedad0 100%);border:1px solid #8c8c8c}html[data-app-theme=windows-xp] .link-button--secondary:hover{color:#000;background:linear-gradient(#fdfdfd 0%,#ece9df 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.home-hero__content:before{content:"Quizmaster";color:#fff;letter-spacing:.02em;filter:none;background:linear-gradient(#3a8ef0 0%,#0d47b8 60%,#0a3fa0 100%);border-radius:6px 6px 0 0;align-items:center;width:auto;height:1.8rem;padding:0 .7rem;font-family:Tahoma,Verdana,sans-serif;font-size:.82rem;font-weight:700;display:flex;position:absolute;top:0;left:0;right:0}html[data-app-theme=windows-xp] .home-hero__panel{-webkit-backdrop-filter:none;backdrop-filter:none;background:linear-gradient(#fff 0%,#dce9fa 100%);border:2px solid #0a246a;border-radius:8px;padding-top:2.4rem;box-shadow:3px 3px #00000047}html[data-app-theme=windows-xp] .home-hero__panel:before{content:"Workflow";color:#fff;letter-spacing:.02em;filter:none;background:linear-gradient(#3a8ef0 0%,#0d47b8 60%,#0a3fa0 100%);border-radius:6px 6px 0 0;align-items:center;width:auto;height:1.8rem;padding:0 .7rem;font-family:Tahoma,Verdana,sans-serif;font-size:.82rem;font-weight:700;display:flex;position:absolute;top:0;left:0;right:0}html[data-app-theme=windows-xp] .home-highlight-card{-webkit-backdrop-filter:none;backdrop-filter:none;background:linear-gradient(#fff 0%,#dce9fa 100%);border:2px solid #0a246a;border-radius:8px;padding-top:2.4rem;box-shadow:3px 3px #00000047}html[data-app-theme=windows-xp] .home-highlight-card:before{content:"Tip";color:#fff;letter-spacing:.02em;filter:none;background:linear-gradient(#3a8ef0 0%,#0d47b8 60%,#0a3fa0 100%);border-radius:6px 6px 0 0;align-items:center;width:auto;height:1.8rem;padding:0 .7rem;font-family:Tahoma,Verdana,sans-serif;font-size:.82rem;font-weight:700;display:flex;position:absolute;top:0;left:0;right:0}html[data-app-theme=windows-xp] .home-workspaces{-webkit-backdrop-filter:none;backdrop-filter:none;background:linear-gradient(#fff 0%,#dce9fa 100%);border:2px solid #0a246a;border-radius:8px;padding-top:2.4rem;box-shadow:3px 3px #00000047}html[data-app-theme=windows-xp] .home-workspaces:before{content:"Jump Back In";color:#fff;letter-spacing:.02em;filter:none;background:linear-gradient(#3a8ef0 0%,#0d47b8 60%,#0a3fa0 100%);border-radius:6px 6px 0 0;align-items:center;width:auto;height:1.8rem;padding:0 .7rem;font-family:Tahoma,Verdana,sans-serif;font-size:.82rem;font-weight:700;display:flex;position:absolute;top:0;left:0;right:0}html[data-app-theme=windows-xp] .home-workspaces__link{border-radius:3px}html[data-app-theme=windows-xp] #inline-question-modal{-webkit-backdrop-filter:none;backdrop-filter:none;background:#ece9df;border:2px solid #0a246a;border-radius:8px;padding-top:2.4rem;box-shadow:3px 3px #00000047}html[data-app-theme=windows-xp] #inline-question-modal:before{content:"New Question";color:#fff;letter-spacing:.02em;filter:none;background:linear-gradient(#3a8ef0 0%,#0d47b8 60%,#0a3fa0 100%);border-radius:6px 6px 0 0;align-items:center;width:auto;height:1.8rem;padding:0 .7rem;font-family:Tahoma,Verdana,sans-serif;font-size:.82rem;font-weight:700;display:flex;position:absolute;top:0;left:0;right:0}html[data-app-theme=windows-xp] #inline-question-modal{padding-top:2.6rem}html[data-app-theme=windows-xp] #inline-question-modal::backdrop{background:#0000328c}html[data-app-theme=windows-xp] .inline-question-modal__close{color:#fff;z-index:2;background:linear-gradient(#f28b82 0%,#c0392b 100%);border:1px solid #7a1f1f;border-radius:3px;justify-content:center;align-items:center;width:1.3rem;height:1.15rem;font-weight:700;display:flex;top:.4rem;right:.55rem}html[data-app-theme=windows-xp] .inline-question-modal__close:hover{color:#fff;background:linear-gradient(#f6a89f 0%,#d0453a 100%)}html[data-app-theme=windows-xp] .share-qr-dialog{-webkit-backdrop-filter:none;backdrop-filter:none;background:linear-gradient(#fff 0%,#dce9fa 100%);border:2px solid #0a246a;border-radius:8px;padding-top:2.4rem;box-shadow:3px 3px #00000047}html[data-app-theme=windows-xp] .share-qr-dialog:before{content:"QR Code";color:#fff;letter-spacing:.02em;filter:none;background:linear-gradient(#3a8ef0 0%,#0d47b8 60%,#0a3fa0 100%);border-radius:6px 6px 0 0;align-items:center;width:auto;height:1.8rem;padding:0 .7rem;font-family:Tahoma,Verdana,sans-serif;font-size:.82rem;font-weight:700;display:flex;position:absolute;top:0;left:0;right:0}html[data-app-theme=windows-xp] .live-stats-dialog{-webkit-backdrop-filter:none;backdrop-filter:none;background:linear-gradient(#fff 0%,#dce9fa 100%);border:2px solid #0a246a;border-radius:8px;padding-top:2.4rem;box-shadow:3px 3px #00000047}html[data-app-theme=windows-xp] .live-stats-dialog:before{content:"Live Stats";color:#fff;letter-spacing:.02em;filter:none;background:linear-gradient(#3a8ef0 0%,#0d47b8 60%,#0a3fa0 100%);border-radius:6px 6px 0 0;align-items:center;width:auto;height:1.8rem;padding:0 .7rem;font-family:Tahoma,Verdana,sans-serif;font-size:.82rem;font-weight:700;display:flex;position:absolute;top:0;left:0;right:0}html[data-app-theme=windows-xp] .cohort-row,html[data-app-theme=windows-xp] .quiz-stats__hero,html[data-app-theme=windows-xp] .quiz-stats__section,html[data-app-theme=windows-xp] .quiz-stats__highlight,html[data-app-theme=windows-xp] .quiz-stats table{border-color:#7f9db9;border-radius:3px}html[data-app-theme=windows-xp] .robin-sheet{background:#ece9df;border:2px solid #0a246a;border-bottom:none;border-radius:8px 8px 0 0;box-shadow:3px 3px #00000047}html[data-app-theme=windows-xp] .robin-sheet .title,html[data-app-theme=windows-xp] .robin-sheet .close-button{color:#0a246a}html[data-app-theme=windows-xp] .robin-sheet--chat .robin-sheet__composer{background:#ece9df;border-top:1px solid #7f9db9}html[data-app-theme=windows-xp] .robin-chat-message--user{color:#fff;background:linear-gradient(#3a8ef0 0%,#0a3fa0 100%)}html[data-app-theme=windows-xp] .robin-chat-message--assistant{color:#10233f;background:#fff;border:1px solid #7f9db9}html[data-app-theme=windows-xp] .generated-question{background:#fff;border:1px solid #7f9db9}html[data-app-theme=windows-xp] .generated-question__number{color:#0a246a}.xp-taskbar{display:none}html[data-app-theme=windows-xp] .xp-taskbar{z-index:9000;color:#fff;background:linear-gradient(#2a8ce8 0%,#1560d8 12%,#0d47b8 100%);border-top:1px solid #6fb0f5;justify-content:space-between;align-items:center;height:34px;padding:0 8px;font-family:Tahoma,Verdana,sans-serif;font-size:.82rem;display:flex;position:fixed;inset:auto 0 0;box-shadow:0 -1px #0000004d}.xp-taskbar__start{text-shadow:0 1px #00000040;text-transform:lowercase;background:linear-gradient(#6fd257 0%,#3a9d23 50%,#2e7d1c 100%);border:1px solid #1e5c10;border-radius:4px 10px 10px 4px;align-items:center;gap:6px;height:26px;padding:0 14px 0 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