:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:dark;color:#ffffffde;background-color:#242424}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh;background:linear-gradient(135deg,#1a1a2e,#16213e)}#root{width:100%;max-width:1280px;margin:0 auto;padding:2rem;text-align:center}.auth-container,.game-container{background:#ffffff0d;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:20px;padding:2rem;box-shadow:0 8px 32px #0000005e;border:1px solid rgba(255,255,255,.1);max-width:800px;margin:auto}input{background:#0003;border:1px solid rgba(255,255,255,.1);padding:12px;border-radius:8px;color:#fff;width:100%;margin-bottom:10px;box-sizing:border-box;font-size:1rem}button{background:linear-gradient(135deg,#667eea,#764ba2);border:none;padding:12px 24px;border-radius:8px;color:#fff;font-weight:600;cursor:pointer;transition:all .2s ease;font-size:1rem;margin-top:10px}button:hover{transform:translateY(-2px);box-shadow:0 4px 12px #764ba280}.board{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin-top:2rem;perspective:1000px}.card-container{aspect-ratio:3/4;cursor:pointer;position:relative}.card-face{box-shadow:0 4px 8px #0000004d}.hud{display:flex;flex-direction:column;gap:1rem;margin-bottom:1rem}.top-bar{display:flex;justify-content:space-between;align-items:center;font-size:1.5rem;font-weight:700}.timer{font-family:monospace;color:#4ade80}.timer.critical{color:#ef4444;animation:pulse 1s infinite}.players-list{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.player-card{background:#0000004d;padding:.5rem 1rem;border-radius:50px;display:flex;align-items:center;gap:.5rem;border:2px solid transparent;transition:all .3s ease}.player-card.active{border-color:#a259ff;background:#a259ff33;transform:scale(1.05)}.avatar{width:40px;height:40px;border-radius:50%;object-fit:cover}.turn-alert{background:#a259ff;color:#fff;padding:.5rem;border-radius:8px;animation:slideDown .5s ease}@keyframes pulse{0%{opacity:1}50%{opacity:.5}to{opacity:1}}@keyframes slideDown{0%{transform:translateY(-20px);opacity:0}to{transform:translateY(0);opacity:1}}@media (max-width: 600px){.board{grid-template-columns:repeat(3,1fr)}.auth-container{padding:1rem;width:90%;max-width:100%}}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px) translate(-50%)}to{opacity:1;transform:translateY(0) translate(-50%)}}@keyframes fadeOut{0%{opacity:1;transform:translateY(0) translate(-50%)}to{opacity:0;transform:translateY(10px) translate(-50%)}}