/* Unified navigation between engineering tools. Visual language follows the approved analog finder: compact dark/paper pills, no extra section colors. */
.tool-crossnav{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-top:20px}
.tool-crossnav a{display:inline-flex;align-items:center;min-height:34px;padding:7px 10px;border:1px solid rgba(255,255,255,.28);border-radius:999px;background:rgba(17,23,27,.58);color:#fff;text-decoration:none;font-size:12px;font-weight:800;line-height:1.2;transition:.17s ease;backdrop-filter:blur(4px)}
.tool-crossnav a:hover{transform:translateY(-1px);border-color:#b58a49;background:#171f24}
.tool-crossnav a.is-current{border-color:#b58a49;background:#fbfaf7;color:#171f24}
.tool-crossnav a.is-current:hover{background:#fbfaf7;color:#171f24}
.tool-crossnav-light a{border-color:#bfc5c8;background:#fff;color:#263038;backdrop-filter:none}
.tool-crossnav-light a:hover{border-color:#b58a49;background:#fff;color:#171f24}
.tool-crossnav-light a.is-current{border-color:#171f24;background:#171f24;color:#fff}
@media(max-width:680px){.tool-crossnav{gap:6px;margin-top:16px}.tool-crossnav a{min-height:32px;padding:6px 9px;font-size:11px}}