*{margin:0;padding:0;box-sizing:border-box}:root{--red: #ef4444;--blue: #3b82f6;--green: #22c55e;--yellow: #eab308;--bg-dark: #0f172a;--bg-card: #1e293b;--text: #f8fafc;--text-muted: #94a3b8;--border: #334155;--accent: #8b5cf6}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-dark);color:var(--text);min-height:100vh}.app{max-width:1200px;margin:0 auto;padding:20px}.header{display:flex;justify-content:space-between;align-items:center;padding:20px 0;border-bottom:1px solid var(--border);margin-bottom:30px}.logo{font-size:24px;font-weight:700;background:linear-gradient(135deg,var(--accent),var(--blue));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.btn{padding:12px 24px;border-radius:8px;border:none;font-size:16px;font-weight:600;cursor:pointer;transition:all .2s}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:#7c3aed}.btn-primary:disabled{background:#4b5563;cursor:not-allowed}.btn-secondary{background:var(--bg-card);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{border-color:var(--accent)}.wallet-btn{display:flex;align-items:center;gap:8px}.wallet-address{font-family:monospace;font-size:14px;color:var(--text-muted)}.wallet-connected{display:flex;align-items:center;gap:12px;padding:8px 16px;background:var(--bg-card);border-radius:8px}.status-dot{width:8px;height:8px;border-radius:50%;background:var(--green)}.lobby{display:grid;gap:30px}.section{background:var(--bg-card);border-radius:12px;padding:24px;border:1px solid var(--border)}.section-title{font-size:18px;font-weight:600;margin-bottom:16px}.create-game{display:flex;gap:12px;align-items:flex-end}.input-group{display:flex;flex-direction:column;gap:6px}.input-group label{font-size:14px;color:var(--text-muted)}.input-group input{padding:12px;border-radius:8px;border:1px solid var(--border);background:var(--bg-dark);color:var(--text);font-size:16px;width:200px}.input-group input:focus{outline:none;border-color:var(--accent)}.games-list{display:flex;flex-direction:column;gap:12px}.game-item{display:flex;justify-content:space-between;align-items:center;padding:16px;background:var(--bg-dark);border-radius:8px;border:1px solid var(--border)}.game-info{display:flex;flex-direction:column;gap:4px}.game-id{font-family:monospace;color:var(--text-muted);font-size:14px}.game-wager{font-weight:600}.no-games{text-align:center;padding:40px;color:var(--text-muted)}.game-container{display:grid;gap:24px}.game-header{display:flex;justify-content:space-between;align-items:center}.score-board{display:flex;gap:24px}.score-item{display:flex;flex-direction:column;align-items:center;padding:12px 24px;background:var(--bg-card);border-radius:8px}.score-label{font-size:14px;color:var(--text-muted)}.score-value{font-size:24px;font-weight:700}.game-status{text-align:center;padding:16px;background:var(--bg-card);border-radius:8px;font-size:18px}.your-turn{background:var(--green);color:#000}.board-section{display:flex;gap:40px;justify-content:center;align-items:flex-start}.grid{display:grid;grid-template-columns:repeat(6,70px);gap:4px;background:var(--border);padding:4px;border-radius:12px}.cell{width:70px;height:70px;background:var(--bg-dark);border-radius:8px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s}.cell:hover{background:#2d3748}.cell.valid{background:#8b5cf633;border:2px dashed var(--accent)}.cell.valid:hover{background:#8b5cf666}.cell.disabled{cursor:not-allowed;opacity:.5}.card{width:60px;height:60px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:28px;font-weight:700;color:#fff;text-shadow:1px 1px 2px rgba(0,0,0,.5);box-shadow:0 2px 8px #0000004d}.card.red{background:var(--red)}.card.blue{background:var(--blue)}.card.green{background:var(--green);color:#000;text-shadow:none}.card.yellow{background:var(--yellow);color:#000;text-shadow:none}.current-card-section{background:var(--bg-card);padding:24px;border-radius:12px;text-align:center}.current-card-label{font-size:14px;color:var(--text-muted);margin-bottom:12px}.current-card{width:100px;height:100px;font-size:48px;margin:0 auto}.card-select{padding:6px;border-radius:12px;cursor:pointer;transition:all .2s ease;background:transparent}.card-select:hover{transform:translateY(-2px)}.card-select.selected{background:#8b5cf633;box-shadow:0 0 0 2px var(--accent)}.error-msg{background:#ef444433;color:var(--red);padding:12px;border-radius:8px;text-align:center}.info-msg{background:#3b82f633;color:var(--blue);padding:12px;border-radius:8px;text-align:center}.loading{display:flex;align-items:center;justify-content:center;gap:8px}.spinner{width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 768px){.grid{grid-template-columns:repeat(6,50px)}.cell{width:50px;height:50px}.card{width:42px;height:42px;font-size:20px}.board-section{flex-direction:column;align-items:center}}