:root{color-scheme:dark;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100vh;background:#0a0a0a;color:#fafafa}.shell{min-height:100vh;display:grid;place-items:center;padding:2rem}.bingo-container{display:flex;flex-direction:column;align-items:center;gap:1.5rem}.title{margin:0;font-size:2.5rem;font-weight:800;letter-spacing:.3em;background:linear-gradient(135deg,#ff6b6b,#ffd93d,#6bcb77,#4d96ff,#9b59b6);background-size:300% 300%;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:gradient-shift 4s ease infinite}@keyframes gradient-shift{0%,to{background-position:0% 50%}50%{background-position:100% 50%}}.board{display:grid;grid-template-columns:repeat(5,1fr);gap:.5rem;width:min(90vw,400px)}.header-cell{display:grid;place-items:center;font-size:1.5rem;font-weight:700;padding:.5rem;color:#ffd93d}.cell{aspect-ratio:1;display:grid;place-items:center;border:1px solid rgba(255,255,255,.15);border-radius:.5rem;background:#ffffff0a;color:#fafafa;font-size:1.25rem;font-weight:600;cursor:pointer;transition:background .15s,border-color .15s,transform .1s;padding:0;font-family:inherit}.cell:hover:not(.free){background:#ffffff1a;border-color:#ffffff4d}.cell:active:not(.free){transform:scale(.95)}.cell.marked{background:#4ecdc440;border-color:#4ecdc499;color:#4ecdc4}.cell.free{background:#ffd93d26;border-color:#ffd93d66;color:#ffd93d;font-size:.7rem;letter-spacing:.1em;cursor:default}.banner{font-size:1.5rem;font-weight:700;color:#ffd93d;animation:pulse .6s ease-in-out infinite alternate}@keyframes pulse{0%{transform:scale(1)}to{transform:scale(1.08)}}.new-game{padding:.75rem 2rem;border:1px solid rgba(255,255,255,.2);border-radius:.5rem;background:#ffffff0f;color:#fafafa;font-size:1rem;font-weight:600;cursor:pointer;font-family:inherit;transition:background .15s,border-color .15s}.new-game:hover{background:#ffffff1f;border-color:#fff6}