.concept-nav{position:fixed;bottom:18px;left:18px;z-index:35;display:flex;align-items:center;gap:5px;padding:6px;background:#fffffff2;border:1px solid #d6d8d4;border-radius:50px;box-shadow:0 4px 22px #15251d18;color:#263b36;font:11px/1.3 Arial,sans-serif;backdrop-filter:blur(10px)}.concept-nav a{display:block;padding:10px 13px;border-radius:30px}.concept-nav a:hover,.concept-nav a[aria-current=page]{background:#263b36;color:white}.concept-nav .concept-home{font-size:16px;border-right:1px solid #d6d8d4;border-radius:0;padding:6px 13px}.concept-nav a:focus-visible{outline:2px solid #a0472e;outline-offset:2px}body.modal-open .concept-nav{display:none}@media(max-width:580px){.concept-nav{left:50%;transform:translateX(-50%);bottom:12px;gap:1px;white-space:nowrap;font-size:10px}.concept-nav a{padding:9px 10px}.concept-nav .concept-home{padding:5px 10px}footer{padding-bottom:85px}}