:root{--bg-color: #0d0f12;--board-bg: #1a1e24;--border-color: #2a303c;--accent: #00ffea;--danger: #ff0055;--font-mono: "Courier New", monospace}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:#fff;font-family:Inter,system-ui,sans-serif;display:flex;justify-content:center;align-items:center;min-height:100vh;-webkit-user-select:none;user-select:none;overflow:hidden}.game-container{display:flex;flex-direction:column;align-items:center;padding:1rem}.retro-wrapper{background:var(--board-bg);border:2px solid var(--accent);border-radius:8px;padding:1.25rem;box-shadow:0 0 24px #00ffea1f,inset 0 0 20px #00ffea0a;display:flex;flex-direction:column;align-items:center;gap:.75rem}.game-header{display:flex;flex-direction:column;align-items:center;gap:.5rem;width:100%}.cyber-title{color:var(--accent);font-size:2rem;letter-spacing:.3em;text-shadow:0 0 12px rgba(0,255,234,.6);font-family:var(--font-mono)}.score-row{display:flex;gap:2rem}.score-block{display:flex;flex-direction:column;align-items:center;gap:2px}.score-label{font-size:.65rem;letter-spacing:.15em;color:#888;text-transform:uppercase}.score-value{font-family:var(--font-mono);font-size:1.4rem;color:var(--accent);text-shadow:0 0 8px rgba(0,255,234,.5)}.board-wrapper{position:relative;border:2px solid var(--border-color);background:#0a0c10;border-radius:4px;overflow:hidden}.game-board{display:block}.overlay{position:absolute;inset:0;background:#0a0c10e0;display:flex;align-items:center;justify-content:center;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.overlay-content{display:flex;flex-direction:column;align-items:center;gap:1rem;text-align:center;padding:1.5rem}.overlay-title{font-size:1.8rem;letter-spacing:.2em;color:var(--accent);font-family:var(--font-mono);text-shadow:0 0 12px rgba(0,255,234,.5)}.overlay-title.danger{color:var(--danger);text-shadow:0 0 12px rgba(255,0,85,.5)}.overlay-sub{color:#888;font-size:.85rem;letter-spacing:.05em}.overlay-score{color:#fff;font-size:1.1rem;font-family:var(--font-mono)}.overlay-best{color:gold;font-size:.9rem;letter-spacing:.05em}.glow-btn{background:transparent;color:var(--accent);border:1px solid var(--accent);padding:.7rem 2rem;font-size:.95rem;font-family:var(--font-mono);letter-spacing:.15em;cursor:pointer;transition:all .2s;border-radius:3px;text-transform:uppercase}.glow-btn:hover{background:#00ffea1a;box-shadow:0 0 16px #00ffea66}.glow-btn:active{transform:scale(.97)}.game-footer{display:flex;justify-content:space-between;align-items:center;width:100%;font-size:.72rem;color:#555;letter-spacing:.05em;padding:0 .25rem}.length-badge{color:#666;font-family:var(--font-mono)}