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.back-to-top{position:fixed;right:clamp(.9rem,2vw,1.5rem);bottom:clamp(.9rem,2vw,1.5rem);z-index:980;width:clamp(44px,4.2vw,52px);height:clamp(44px,4.2vw,52px);border-radius:50%;border:1px solid #111318;background:#111318;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 8px 22px rgba(0,0,0,.18);opacity:0;visibility:hidden;pointer-events:none;transform:translate3d(12px,10px,0) scale(.94);transition:opacity .22s ease,transform .22s ease,visibility 0s linear .22s,background-color .18s ease}.back-to-top.is-visible{opacity:1;visibility:visible;pointer-events:auto;transform:translate3d(0,0,0) scale(1);transition-delay:0s}.back-to-top:hover{background:#24272f}.back-to-top:active{transform:translate3d(0,0,0) scale(.96)}.back-to-top:focus-visible{outline:3px solid rgba(43,110,60,.35);outline-offset:3px}.back-to-top .material-symbols-outlined{font-size:clamp(1.2rem,2vw,1.45rem);color:#fff}@media(prefers-reduced-motion:reduce){.back-to-top{transition:none}}
/* navigation-hardening-v1.2:start */
/* Keep identity/social controls anchored; only the navigation list scrolls. */
.sidebar{overflow:hidden}
.sidebar>.sidebar-avatar,.sidebar>.sidebar-logo,.sidebar>.sidebar-footer{flex:0 0 auto}
.sidebar>.sidebar-nav{flex:1 1 auto;min-height:0;overflow-y:auto;overflow-x:hidden;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-gutter:stable;padding-right:.45rem;margin-right:-.45rem}
.sidebar>.sidebar-nav::-webkit-scrollbar{width:6px}
.sidebar>.sidebar-nav::-webkit-scrollbar-track{background:transparent}
.sidebar>.sidebar-nav::-webkit-scrollbar-thumb{background:#d7dde2;border-radius:999px}
.sidebar>.sidebar-nav::-webkit-scrollbar-thumb:hover{background:#b9c2c9}
.sidebar-footer{flex:0 0 auto}

/* Mobile navigation must not exist visually outside its breakpoint. */
.mobile-nav,.mobile-nav-overlay{display:none}
@media(max-width:880px){
  .mobile-nav-overlay{display:block}
  .mobile-nav{display:flex;overflow:hidden}
  .mobile-nav>.close-btn,.mobile-nav>.sidebar-avatar,.mobile-nav>.sidebar-logo,.mobile-nav>.sidebar-footer{flex:0 0 auto}
  .mobile-nav>.sidebar-nav{flex:1 1 auto;min-height:0;overflow-y:auto;overflow-x:hidden;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-gutter:stable;padding-right:.45rem;margin-right:-.45rem}
  .mobile-nav>.sidebar-nav::-webkit-scrollbar{width:6px}
  .mobile-nav>.sidebar-nav::-webkit-scrollbar-track{background:transparent}
  .mobile-nav>.sidebar-nav::-webkit-scrollbar-thumb{background:#d7dde2;border-radius:999px}
  .mobile-nav>.sidebar-nav::-webkit-scrollbar-thumb:hover{background:#b9c2c9}
}
/* navigation-hardening-v1.2:end */


/* work-email-contact:start */
.work-email{margin:-.25rem 0 1.15rem;color:#6f6f7a;font-size:.86rem;display:flex;align-items:baseline;justify-content:center;gap:.5rem;flex-wrap:wrap}
.work-email-label{font-family:'JetBrains Mono',monospace;font-size:.68rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:#6f6f7a}
.work-email a{color:#111;text-decoration:none;font-weight:650;border-bottom:1px solid #d4d8dd;padding-bottom:.08rem;transition:color .18s ease,border-color .18s ease}
.work-email a:hover{color:#2b6e3c;border-bottom-color:#2b6e3c}
.work-email a:focus-visible{outline:3px solid rgba(43,110,60,.2);outline-offset:3px;border-radius:.15rem}
@media(max-width:520px){.work-email{gap:.35rem;font-size:.82rem}}
/* work-email-contact:end */