:root{--bg:#060608;--glass:#0f121c8c;--glass-border:#78b4ff1f;--text:#e8edf5;--text-dim:#8893a8;--accent:#6c8cff;--accent2:#b06cff;--accent3:#00e0ff;--success:#00d08a;--radius:14px;--font:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}*{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--bg);color:var(--text);font-family:var(--font);scroll-behavior:smooth;overflow-x:hidden}#bg3d{z-index:0;pointer-events:none;width:100%;height:100%;position:fixed;top:0;left:0}#quiz{z-index:1;scroll-snap-type:y mandatory;scrollbar-width:none;height:100vh;position:relative;overflow-y:scroll}#quiz::-webkit-scrollbar{display:none}.quiz-section{scroll-snap-align:start;scroll-snap-stop:always;opacity:0;justify-content:center;align-items:center;min-height:100vh;padding:40px 20px;transition:opacity .4s;display:flex}.quiz-section.active{opacity:1}.content{text-align:center;background:var(--glass);-webkit-backdrop-filter:blur(20px);border:1px solid 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