.lgrid { display: grid; user-select: none; }
.lc {
  aspect-ratio: 1;
  border: 0;
  padding: 0;
  border-radius: 10px;
  background: var(--surface);
  color: var(--accent);
  font: inherit;
  font-weight: 700;
  font-size: clamp(1.1rem, 6vw, 1.7rem);
  cursor: pointer;
  box-shadow: 0 1px 3px rgb(74 59 51 / .08);
}
.lc.given { color: var(--text); cursor: default; }
.lc.sel { background: color-mix(in srgb, var(--tile-home) 60%, var(--surface)); }
.lc.peer { background: color-mix(in srgb, var(--tile-home) 15%, var(--surface)); }
.lc.clash { color: #C0564B; }
.solved .lc { background: color-mix(in srgb, var(--tile-home) 35%, var(--surface)); }
.pad { display: grid; gap: 8px; margin-top: 14px; }
.key {
  border: 0;
  border-radius: 12px;
  padding: 12px 0;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-size: 1.2rem;
  font-weight: 600;
  box-shadow: var(--shadow);
  cursor: pointer;
}