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:root{--blue:#1a73e8;--blue-weak:#e8f0fe;--red:#ea4335;--red-weak:#fce8e6;--yellow:#f9ab00;--yellow-weak:#fef7e0;--green:#188038;--green-weak:#e6f4ea;--ink:#202124;--muted:#5f6368;--line:#dadce0;--paper:#fff;--canvas:#f8faff;--shadow:0 12px 32px rgba(60,64,67,.12);--radius:20px;font-family:Roboto,Arial,sans-serif;color:var(--ink)}*{box-sizing:border-box}html{background:var(--canvas);scroll-behavior:smooth}body{min-height:100vh;margin:0;overflow-x:hidden;background:linear-gradient(125deg,#fff 0%,#f8faff 55%,#f1f7ff 100%)}button,input{font:inherit}button{cursor:pointer}.page-glow{position:fixed;border-radius:50%;filter:blur(4px);pointer-events:none;z-index:-1}.glow-one{height:450px;width:450px;right:-250px;top:-100px;background:radial-gradient(circle,rgba(66,133,244,.16),transparent 67%)}.glow-two{height:420px;width:420px;left:-270px;bottom:-80px;background:radial-gradient(circle,rgba(251,188,4,.12),transparent 68%)}.site-header,main,footer{width:min(1160px,calc(100% - 48px));margin:auto}.site-header{height:80px;display:flex;align-items:center;justify-content:space-between}.brand{color:var(--ink);text-decoration:none;font:500 19px/1 'Google Sans',Roboto,sans-serif;display:flex;align-items:center;gap:11px;letter-spacing:-.25px}.brand b{font-weight:500;color:var(--blue)}.brand-mark{height:28px;width:28px;display:grid;grid-template-columns:1fr 1fr;gap:3px;transform:rotate(45deg)}.brand-mark i{border-radius:3px}.brand-mark i:nth-child(1){background:var(--blue)}.brand-mark i:nth-child(2){background:var(--red)}.brand-mark i:nth-child(3){background:var(--yellow)}.brand-mark i:nth-child(4){background:var(--green)}.text-button{border:0;background:transparent;color:var(--blue);font-weight:700;padding:10px 5px}.trophy-icon{font-size:19px;margin-right:5px}.hero{min-height:calc(100vh - 142px);display:grid;grid-template-columns:1.04fr .96fr;align-items:center;gap:45px;padding:50px 0 80px}.eyebrow{display:inline-flex;gap:8px;align-items:center;background:var(--blue-weak);border-radius:100px;padding:7px 12px;color:#1558b0;font-size:13px;font-weight:700;letter-spacing:.35px;text-transform:uppercase}.pulse-dot{height:8px;width:8px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 0 rgba(26,115,232,.5);animation:pulse 2s infinite}.hero h1,.screen-title{font-family:'Google Sans',Roboto,sans-serif;letter-spacing:-1.8px}.hero h1{font-size:clamp(42px,5.6vw,68px);line-height:1.04;margin:20px 0;color:#202124}.hero h1 .grad{background:linear-gradient(90deg,var(--blue),#8d62e8 45%,var(--red));color:transparent;background-clip:text}.hero p{max-width:550px;color:var(--muted);font-size:18px;line-height:1.65;margin:0 0 28px}.name-form{display:flex;align-items:flex-start;gap:12px;max-width:548px}.field-wrap{position:relative;flex:1}.field-wrap label{position:absolute;left:16px;top:8px;color:var(--muted);font-size:12px}.field-wrap input{height:61px;width:100%;padding:23px 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var(--line)}.secondary-button:hover{background:#f6faff}.hero-art{position:relative;min-height:430px;display:flex;align-items:center;justify-content:center}.hero-art:before{content:'';position:absolute;width:390px;height:390px;border-radius:50%;background:linear-gradient(145deg,#e8f0fe,#f4edff);animation:float 6s ease-in-out infinite}.hero-art img{width:min(100%,590px);position:relative;z-index:1;animation:float 6s ease-in-out infinite reverse}.hero-stats{display:flex;gap:27px;margin-top:35px}.hero-stats div{font-size:13px;color:var(--muted)}.hero-stats strong{display:block;font:500 22px 'Google Sans';color:var(--ink);margin-bottom:2px}.screen{padding:40px 0 75px;min-height:calc(100vh - 142px)}.screen-heading{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:26px}.screen-title{font-size:36px;margin:0}.screen-subtitle{color:var(--muted);margin:7px 0 0;font-size:16px}.back-button{border:0;background:transparent;color:var(--blue);font-weight:700;padding:10px 0}.quiz-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.quiz-card{min-height:225px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:20px;display:flex;flex-direction:column;position:relative;overflow:hidden;box-shadow:0 1px 2px rgba(60,64,67,.05);transition:transform .2s,box-shadow .2s,border .2s;text-align:left}.quiz-card:hover:not(:disabled){transform:translateY(-4px);box-shadow:var(--shadow);border-color:transparent}.quiz-card:disabled{cursor:default}.quiz-card:before{content:'';height:5px;position:absolute;left:0;right:0;top:0;background:var(--card-color)}.quiz-card .quiz-number{font:700 13px Roboto;color:var(--card-color);letter-spacing:.7px;margin-bottom:17px}.quiz-icon{height:45px;width:45px;border-radius:12px;background:var(--card-weak);display:grid;place-items:center;margin-bottom:17px}.quiz-icon svg{height:25px;width:25px;stroke:var(--card-color);fill:none;stroke-width:2.3;stroke-linecap:round;stroke-linejoin:round}.quiz-card 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i{display:block;height:100%;background:var(--blue);border-radius:inherit;transition:width .4s ease}.question-card{background:#fff;border:1px solid #e5e8ed;border-radius:var(--radius);padding:clamp(22px,4.5vw,46px);box-shadow:var(--shadow);animation:slide-in .35s ease both}.question-card h2{font:400 clamp(25px,3.4vw,36px)/1.23 'Google Sans';letter-spacing:-.75px;margin:18px 0 28px}.question-count{color:var(--blue);font-weight:700}.answers{display:grid;gap:11px}.answer{display:flex;align-items:center;gap:15px;width:100%;min-height:65px;padding:12px 17px;border:1px solid var(--line);border-radius:12px;background:#fff;text-align:left;color:var(--ink);transition:border .18s,background .18s,transform .18s}.answer:hover{border-color:var(--blue);background:#f8fbff;transform:translateX(3px)}.answer.selected{border:2px solid var(--blue);padding:11px 16px;background:var(--blue-weak)}.answer-letter{height:30px;min-width:30px;display:grid;place-items:center;border-radius:50%;background:#f1f3f4;color:var(--muted);font-weight:700;font-size:13px}.selected .answer-letter{color:#fff;background:var(--blue)}.question-actions{margin-top:28px;display:flex;justify-content:space-between;align-items:center;gap:16px}.quiz-player-name{font-size:13px;color:var(--muted)}.quiz-player-name b{color:var(--ink)}.results-card{background:#fff;border:1px solid #e5e8ed;border-radius:var(--radius);box-shadow:var(--shadow);padding:clamp(25px,5vw,52px);text-align:center}.result-symbol{height:84px;width:84px;border-radius:50%;background:var(--green-weak);color:var(--green);display:grid;place-items:center;font-size:42px;margin:auto}.results-card h1{font:500 clamp(33px,5vw,48px) 'Google Sans';letter-spacing:-1.3px;margin:20px 0 7px}.score-line{font-size:18px;color:var(--muted);margin:0}.score-line 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.back-button{margin-top:12px}.screen-title{font-size:30px}.quiz-grid{grid-template-columns:1fr}.quiz-card{min-height:155px}.quiz-icon{float:left}.question-card{padding:22px 17px}.question-card h2{font-size:26px}.answer{font-size:14px}.question-actions{align-items:flex-end}.quiz-player-name{display:none}.primary-button,.secondary-button{padding:0 16px}.board-header,.leader-list{padding-left:17px;padding-right:17px}.leader{grid-template-columns:36px 1fr auto}.leader-score b{font-size:20px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}