*{margin:0;padding:0;box-sizing:border-box}html,body{width:100%;height:100%;overflow:hidden;background:#111;font-family:system-ui,-apple-system,sans-serif}#game{display:block;width:100%;height:100%;cursor:none}#crosshair{display:none;position:fixed;top:50%;left:50%;width:14px;height:14px;transform:translate(-50%,-50%);pointer-events:none;z-index:10}#crosshair:before,#crosshair:after{content:"";position:absolute;background:#ffffffe6;box-shadow:0 0 2px #00000080}#crosshair:before{width:2px;height:14px;left:6px;top:0}#crosshair:after{width:14px;height:2px;left:0;top:6px}#fps{position:fixed;top:8px;right:12px;color:#0f0;font-size:12px;font-family:monospace;text-shadow:0 1px 2px rgba(0,0,0,.8);pointer-events:none;z-index:10}#debug{display:none;position:fixed;top:8px;left:8px;color:#fff;font-size:12px;font-family:monospace;text-shadow:0 1px 2px rgba(0,0,0,.8);pointer-events:none;z-index:10;line-height:1.6;background:#0006;padding:8px 12px;border-radius:6px}#debug span{color:#afa;display:inline-block;width:64px}#hotbar{position:fixed;bottom:12px;left:50%;transform:translate(-50%);display:flex;gap:4px;z-index:10;background:#00000059;padding:4px;border-radius:8px}.slot{width:52px;height:56px;background:#0006;border:2px solid rgba(255,255,255,.15);border-radius:6px;display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative;transition:border-color .1s,transform .1s}.slot.active{border-color:#fffc;transform:scale(1.08);background:#0000008c}.slot .num{position:absolute;top:2px;left:4px;font-size:9px;color:#fff9;font-family:monospace}.slot .block-preview{width:24px;height:24px;border-radius:3px;margin-top:4px;image-rendering:pixelated;box-shadow:inset 0 0 4px #0000004d}.slot .name{font-size:9px;color:#fffc;margin-top:3px;white-space:nowrap}#instructions{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:#000000b3;color:#fff;z-index:20;cursor:pointer}#instructions h1{font-size:2.2rem;margin-bottom:.5rem;text-align:center}#instructions p{text-align:center;opacity:.8;margin-bottom:1rem;font-size:1.1rem}#instructions ul{list-style:none;line-height:1.9;display:grid;grid-template-columns:1fr 1fr;gap:0 2rem}#instructions li{display:flex;align-items:center;gap:.5rem;font-size:.95rem}#instructions kbd{background:#ffffff26;border:1px solid rgba(255,255,255,.25);border-radius:4px;padding:2px 8px;font-size:.85rem;font-family:monospace;min-width:52px;text-align:center}