*,:before,:after{box-sizing:border-box}:root{--primary:#7c3aed;--accent:#ec4899;--bg:#fafafa;--surface:#fff;--text:#1f2937;--text-light:#6b7280;--border:#e5e7eb;--shadow:#0000001a;--x-color:var(--primary);--o-color:var(--accent);--hover:#f3f4f6}body{-webkit-font-smoothing:antialiased;background:var(--bg);color:var(--text);margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.screen{flex-direction:column;align-items:center;min-height:100vh;padding:2rem 1rem;display:flex}.game-container{width:100%;max-width:500px}.header{text-align:center;margin-bottom:2rem}.header h1{color:var(--primary);margin:0 0 .5rem;font-size:2.5rem;font-weight:700}.current-player{color:var(--text-light);margin:.5rem 0;font-size:1.25rem;font-weight:500}.player-indicator{font-size:1.5rem;font-weight:700}.player-x{color:var(--x-color)}.player-o{color:var(--o-color)}.board{background:var(--surface);box-shadow:0 4px 6px var(--shadow);border-radius:1rem;grid-template-columns:repeat(3,1fr);gap:.75rem;margin:2rem 0;padding:1rem;display:grid}.cell{aspect-ratio:1;border:3px solid var(--border);background:var(--surface);cursor:pointer;-webkit-user-select:none;user-select:none;border-radius:.75rem;justify-content:center;align-items:center;font-size:3rem;font-weight:700;transition:all .2s;display:flex}.cell:hover:not(.cell-filled){background:var(--hover);border-color:var(--primary);transform:scale(1.05)}.cell:active:not(.cell-filled){transform:scale(.95)}.cell-filled{cursor:default}.cell-winning{background:var(--primary);color:#fff;border-color:var(--primary);animation:.5s pulse}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}.cell.x{color:var(--x-color)}.cell.o{color:var(--o-color)}.game-status{text-align:center;min-height:3rem;margin:1.5rem 0}.status-message{margin:0;font-size:1.5rem;font-weight:600}.status-winner{color:var(--primary)}.status-draw{color:var(--text-light)}.controls{flex-direction:column;gap:1rem;margin:1.5rem 0;display:flex}.button{cursor:pointer;border:none;border-radius:.5rem;padding:1rem 2rem;font-family:inherit;font-size:1rem;font-weight:600;transition:all .2s}.button-primary{background:var(--primary);color:#fff}.button-primary:hover{box-shadow:0 4px 8px var(--shadow);background:#6d28d9;transform:translateY(-2px)}.button-primary:active{transform:translateY(0)}.button-secondary{background:var(--surface);color:var(--text);border:2px solid var(--border)}.button-secondary:hover{background:var(--hover);border-color:var(--primary)}.scoreboard{background:var(--surface);box-shadow:0 2px 4px var(--shadow);border-radius:1rem;margin-top:2rem;padding:1.5rem}.scoreboard h2{text-align:center;color:var(--text);margin:0 0 1rem;font-size:1.25rem}.scores{grid-template-columns:repeat(3,1fr);gap:1rem;display:grid}.score-item{text-align:center;background:var(--bg);border-radius:.5rem;padding:1rem}.score-label{color:var(--text-light);text-transform:uppercase;margin-bottom:.5rem;font-size:.875rem;font-weight:600}.score-value{margin:0;font-size:2rem;font-weight:700}.score-x .score-value{color:var(--x-color)}.score-o .score-value{color:var(--o-color)}.score-draws .score-value{color:var(--text-light)}@media (width<=480px){.header h1{font-size:2rem}.cell{font-size:2.5rem}.board{gap:.5rem;padding:.75rem}.status-message{font-size:1.25rem}.score-value{font-size:1.5rem}}