:root{--neon-pink: #ff0a78;--neon-blue: #00d4ff;--neon-cyan: #00ffff;--neon-purple: #b000ff;--dark-bg: #0a0a0f;--card-bg: #1a1a2e}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;min-height:100vh}body{font-family:Roboto Mono,monospace;background:var(--dark-bg);color:#fff;line-height:1.6;position:relative;overflow-x:hidden}body:before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background-image:linear-gradient(rgba(0,212,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(0,212,255,.05) 1px,transparent 1px);background-size:50px 50px;animation:gridMove 20s linear infinite;z-index:0;pointer-events:none}@keyframes gridMove{0%{background-position:0 0}to{background-position:50px 50px}}body:after{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background:repeating-linear-gradient(0deg,transparent,transparent 2px,rgba(0,212,255,.03) 2px,rgba(0,212,255,.03) 4px);pointer-events:none;z-index:1}button{cursor:pointer;font-family:inherit}button:disabled{cursor:not-allowed;opacity:.6}.neon-text{text-shadow:0 0 10px currentColor,0 0 20px currentColor,0 0 30px currentColor}.neon-text-strong{text-shadow:0 0 10px currentColor,0 0 20px currentColor,0 0 30px currentColor,0 0 40px currentColor,0 0 70px currentColor,0 0 80px currentColor}.neon-border{box-shadow:0 0 5px currentColor,0 0 10px currentColor,0 0 15px currentColor,inset 0 0 5px currentColor}.neon-border-strong{box-shadow:0 0 10px currentColor,0 0 20px currentColor,0 0 30px currentColor,0 0 40px currentColor,inset 0 0 10px currentColor}