:root{--panel:#2d2f4a;--panel2:#22243b;--edge:#6b6f9a;--bronze:#b8804a;--ink:#f0f0ff;--dim:#a9acd0;
--blue:#4aa8ff;--green:#6bd85a;--yellow:#ffd23f;--red:#ff5a4a;--sky:#2b2f6b}
*{box-sizing:border-box}
body.retro{margin:0;background:linear-gradient(#1b1d3f,#2b2f6b 55%,#5b3a7a);min-height:100vh;color:var(--ink);font-family:"VT323",monospace;font-size:20px;line-height:1.25}
.retro-wrap{max-width:980px;margin:0 auto;padding:12px 14px 40px}
.retro-back a{color:var(--yellow);text-decoration:none;font-family:"Silkscreen",monospace;font-size:14px}
.retro-banner{width:100%;display:block;image-rendering:pixelated;border:4px solid var(--edge);border-radius:4px;margin:6px 0}
.retro-title{font-family:"Silkscreen",monospace;font-size:26px;text-align:center;color:#bfe3ff;text-shadow:3px 3px 0 #1b2a6b;margin:10px 0}
.game{background:var(--panel2);border:4px solid var(--edge);box-shadow:0 0 0 3px #12132a,inset 0 0 0 2px var(--bronze);padding:10px;border-radius:6px;margin:10px 0}
#screen{width:100%;height:auto;display:block;image-rendering:pixelated;image-rendering:crisp-edges;background:#000;border:3px solid #12132a;touch-action:none;cursor:ew-resize}
.levels{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 8px}
.lvl,.btn{font-family:"Silkscreen",monospace;font-size:13px;color:var(--ink);background:var(--panel);border:3px solid var(--edge);padding:7px 10px;cursor:pointer;border-radius:3px;box-shadow:0 3px 0 #12132a}
.lvl:hover,.btn:hover{border-color:var(--yellow)}
.lvl.on{background:#3d4a99;border-color:var(--yellow)}
.lvl .st{color:var(--yellow)}
.btn.go{background:#2f8f2f;border-color:#8cf58c;font-size:16px;padding:9px 18px}
.btn.go:disabled{background:#3a3d55;border-color:#555;color:#888;cursor:not-allowed}
.btn.reset{background:#8f3a2f;border-color:#f59a8c}
.row{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:8px 16px;margin:10px 0}
.ctl label{display:flex;justify-content:space-between;font-size:20px}
.ctl.locked{opacity:.45}
.ctl.locked label::after{content:" [LOCKED]";color:var(--red);font-size:15px}
.ctl input[type=range]{width:100%;accent-color:var(--yellow)}
.ctl .val{color:var(--yellow)}
.predict{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:8px 0}
.predict input{font-family:"VT323",monospace;font-size:22px;width:110px;background:#12132a;color:var(--yellow);border:3px solid var(--edge);padding:3px 6px}
.blurb{background:var(--panel);border:3px solid var(--edge);padding:8px 12px;margin:0 0 8px;border-radius:3px}
.blurb b{color:var(--yellow)}
.msg{min-height:1.4em;font-size:22px;margin:6px 0;color:var(--green)}
.msg.bad{color:var(--red)}
.why{background:var(--panel);border:3px dashed var(--edge);padding:8px 12px;margin-top:8px;display:none;white-space:pre-wrap;font-size:19px}
.why.show{display:block}
.legend{display:flex;flex-wrap:wrap;gap:12px;font-size:18px;color:var(--dim);margin-top:6px}
.legend i{display:inline-block;width:12px;height:12px;margin-right:4px;border:1px solid #000}
.ap{font-size:19px;color:var(--dim)}
.ap b{color:var(--ink)}
.ftype{padding:6px 10px}.ftype.on{background:#3d4a99;box-shadow:0 0 0 2px var(--yellow)}