:root{--bg-color: #222222;--panel-bg: #2a2a2a;--border-color: #444444;--text-primary: #ffffff;--text-secondary: #b0b0b0;--accent-primary: #fad132;--accent-secondary: #ffeb3b;--neon-glow: 0 0 15px rgba(250, 209, 50, .4);--font-family: "Inter", system-ui, -apple-system, sans-serif;--grid-gap: 12px}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-primary);font-family:var(--font-family);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;display:flex;flex-direction:column;align-items:center;padding:20px}#root{width:100%;max-width:600px;display:flex;flex-direction:column;gap:24px}h1{font-size:3rem;font-weight:900;text-align:center;color:var(--accent-primary);text-shadow:var(--neon-glow);margin-bottom:8px;letter-spacing:-2px;text-transform:uppercase}.subtitle{text-align:center;color:var(--text-secondary);font-size:1rem;margin-bottom:24px}.bingo-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:var(--grid-gap);width:100%;aspect-ratio:1 / 1}.bingo-square{background-color:var(--panel-bg);border:1px solid var(--border-color);border-radius:8px;display:flex;align-items:center;justify-content:center;padding:8px;text-align:center;font-size:.85rem;font-weight:500;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);-webkit-user-select:none;user-select:none;overflow:hidden;position:relative;-webkit-hyphens:auto;hyphens:auto}.bingo-square:hover{transform:translateY(-4px);border-color:var(--accent-primary);box-shadow:var(--neon-glow)}.bingo-square.marked{background-color:var(--accent-primary);border-color:var(--accent-primary);color:#000;font-weight:700}.bingo-square.marked:after{content:"⚡";position:absolute;top:4px;right:4px;font-size:.7rem;color:#000}.controls{display:flex;justify-content:center;gap:16px;margin-top:16px}button{background-color:var(--panel-bg);border:1px solid var(--border-color);color:var(--text-primary);padding:10px 20px;border-radius:6px;font-weight:600;cursor:pointer;transition:all .2s}button:hover{background-color:var(--border-color);border-color:var(--text-secondary)}button.primary{background:var(--accent-primary);border:none;color:#000}button.primary:hover{filter:brightness(1.1);box-shadow:var(--neon-glow)}.bingo-overlay{position:fixed;inset:0;background:#000c;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:100;animation:fadeIn .3s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.bingo-win-card{background:var(--panel-bg);border:4px solid var(--accent-primary);padding:40px;border-radius:20px;text-align:center;box-shadow:var(--neon-glow);animation:scaleIn .5s cubic-bezier(.175,.885,.32,1.275)}@keyframes scaleIn{0%{transform:scale(.8);opacity:0}to{transform:scale(1);opacity:1}}@media(max-width:480px){.bingo-square{font-size:.75rem;padding:6px;line-height:1.1}h1{font-size:2.2rem}:root{--grid-gap: 6px}}