.bpc-back{display:inline-flex;align-items:center;gap:.6rem;padding:.55rem 1rem;border-radius:12px;background:#e8eddf;border:1px solid rgba(255,255,255,.65);color:#2d5a3d;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-weight:700;font-size:.9rem;line-height:1.2;letter-spacing:.2px;text-decoration:none;white-space:nowrap;cursor:pointer;box-shadow:6px 6px 12px #d1d9c6,-6px -6px 12px #fff;transition:background .25s ease,border-color .25s ease,box-shadow .25s ease,transform .25s ease,color .25s ease}.bpc-back:hover{background:#e8eddf;border-color:#4a7c5973;color:#2d5a3d;transform:translateY(0);box-shadow:inset 4px 4px 9px #d1d9c6,inset -4px -4px 9px #fff}.bpc-back:active{transform:translateY(0)}.bpc-back:focus-visible{outline:2px solid #4a7c59;outline-offset:3px}.bpc-back .bpc-ico{width:20px;height:20px;flex:0 0 20px;stroke:#4a7c59;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .25s ease}.bpc-back:hover .bpc-ico{transform:translate(-2px) scale(1.06)}.bpc-back-fixed{position:fixed;top:14px;left:14px;z-index:9999}@media(max-width:640px){.bpc-back{padding:.5rem .7rem;font-size:.8rem;gap:.45rem}.bpc-back .bpc-ico{width:18px;height:18px;flex-basis:18px}}#gv-nav a{white-space:nowrap}@media(max-width:1400px){#gv-nav a{padding-left:1rem;padding-right:1rem}}@media(max-width:1260px){#gv-nav a{padding-left:.75rem;padding-right:.75rem;font-size:.8rem}#gv-nav{gap:.5rem!important}}@media(max-width:1130px){#gv-nav a{padding-left:.6rem;padding-right:.6rem;gap:.35rem}}@media(max-width:1300px){#site-header .bpc-back span{display:none}#site-header .bpc-back{padding-left:.6rem;padding-right:.6rem}}@media(max-width:1150px){#gv-wordmark{display:none}}