:root{--ink:#071321;--white:#fff;--purple:#632095;--orange:#f18300;--teal:#007a78;--green:#43a52c;--red:#d92738;--blue:#095bb5}*{box-sizing:border-box}body{margin:0;background:var(--ink);color:#fff;font-family:Arial Black,Arial,sans-serif;min-height:100vh}button{font:inherit}header{min-height:70px;padding:0 max(20px,calc((100vw - 1160px)/2));display:flex;align-items:center;justify-content:space-between;border-top:7px solid var(--orange);border-bottom:2px solid #394553;background:#0d1b29}header span{letter-spacing:.15em;color:#ffae2d}.back{color:#fff;text-decoration:none;font-family:Arial,sans-serif;font-weight:700}main{max-width:1160px;margin:auto;padding:72px 28px 110px}.intro{text-align:center;max-width:870px;margin:0 auto 55px}.eyebrow{color:#ffad28;text-transform:uppercase;letter-spacing:.2em;font-size:.78rem}.intro h1{margin:0;text-transform:uppercase;font-size:clamp(3.5rem,8vw,7.5rem);line-height:.84;letter-spacing:-.07em}.intro h1 em{color:#b65cf1;font-style:normal}.intro>p:last-child{font-family:Arial,sans-serif;color:#c3ccd4;font-size:1.08rem}.tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:22px}.tabs button{padding:17px 12px;border:2px solid #fff;background:#0d1b29;color:#fff;cursor:pointer}.tabs button.active{background:var(--orange);color:var(--ink);box-shadow:5px 5px 0 #fff}.game{display:none;grid-template-columns:.78fr 1.22fr;border:3px solid #fff;min-height:460px}.game.active{display:grid}.game-copy{padding:42px;background:linear-gradient(145deg,var(--purple),#32105a)}.number{display:grid;place-items:center;width:54px;height:54px;border-radius:50%;background:var(--orange);color:var(--ink);border:3px solid #fff}.game h2{font-size:clamp(2.4rem,5vw,4.4rem);text-transform:uppercase;line-height:.9;margin:72px 0 20px}.game-copy p{font-family:Arial,sans-serif;line-height:1.6}.arena{padding:42px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;background:#fff;color:var(--ink)}.reaction-target{width:min(280px,75vw);aspect-ratio:1;border-radius:50%;border:10px solid var(--ink);background:var(--orange);box-shadow:12px 12px 0 var(--purple);font-size:2.2rem;cursor:pointer}.reaction-target.waiting{background:var(--red);color:#fff}.reaction-target.go{background:var(--green);color:#fff;animation:pulse .45s infinite alternate}.arena>p:last-child{font-family:Arial,sans-serif;font-weight:700;min-height:26px}.quiz #question{font-family:Arial,sans-serif;font-size:1.35rem;font-weight:800}.quiz #answers{display:grid;grid-template-columns:1fr 1fr;gap:10px;width:100%;margin:20px 0}.quiz #answers button,.combo-buttons button{padding:16px;border:3px solid var(--ink);background:#fff;cursor:pointer}.quiz #answers button:hover,.combo-buttons button:hover{background:#eee}.control{padding:15px 24px;border:3px solid var(--ink);background:var(--orange);color:var(--ink);cursor:pointer;box-shadow:5px 5px 0 var(--purple)}.combo #combo-display{font-family:Arial,sans-serif;font-size:1.35rem;font-weight:900;min-height:65px}.combo-buttons{display:grid;grid-template-columns:1fr 1fr;gap:10px;width:100%;margin:20px 0}.combo-buttons button{background:var(--blue);color:#fff}.combo-buttons button:nth-child(2){background:var(--red)}.combo-buttons button:nth-child(3){background:var(--green)}.combo-buttons button:nth-child(4){background:var(--purple)}footer{text-align:center;padding:26px;background:#0d1b29;color:#ffad28;letter-spacing:.1em}@keyframes pulse{to{transform:scale(1.04);box-shadow:15px 15px 0 var(--orange)}}@media(max-width:720px){header{padding:0 16px;font-size:.78rem}main{padding:48px 16px 80px}.tabs{grid-template-columns:1fr}.game.active{grid-template-columns:1fr}.game-copy{padding:28px}.game h2{margin:35px 0 14px}.arena{padding:35px 20px;min-height:390px}.quiz #answers{grid-template-columns:1fr}}