.pipes-area { max-width:520px; }
.controls { display:flex; align-items:center; justify-content:space-between; gap:14px; flex-wrap:wrap; margin-bottom:14px; }
.stats { display:flex; gap:14px; color:var(--muted); font-size:14px; flex-wrap:wrap; }
.stats b { color:var(--ink); font-size:17px; }
.actions { display:flex; gap:8px; flex-wrap:wrap; }
.board { display:grid; grid-template-columns:repeat(5,1fr); gap:6px; max-width:420px; margin:0 auto; }
.pipe { aspect-ratio:1/1; border:1px solid var(--rule); background:var(--panel); cursor:pointer; display:flex; align-items:center; justify-content:center; border-radius:6px; }
.pipe svg { width:80%; height:80%; }
.pipe.lit { background:var(--bluewash); }
.pipe.source, .pipe.sink { background:var(--bluewash); }
.win-panel { max-width:360px; margin:14px auto 0; padding:24px; text-align:center; }
.win-panel h2 { margin:0 0 6px; letter-spacing:-.03em; }
.win-panel p { color:var(--muted); font-size:14px; margin:0 0 14px; }
@media (max-width:780px) { .controls { flex-direction:column; align-items:stretch; } .stats { justify-content:space-between; } .actions { justify-content:center; } }