.fd-header{position:sticky;top:0;z-index:var(--sr-z-hud);display:flex;align-items:center;gap:32px;padding:14px 32px;background:var(--sr-bg-hud-open);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(0,0,0,.08)}.fd-header-logo{display:flex;align-items:center;text-decoration:none}.fd-header-logo svg{height:22px;width:auto;display:block}.fd-nav{display:flex;align-items:center;gap:24px}.fd-header .fd-navlink{font-size:13px;color:#00000080;text-decoration:none;padding-bottom:2px;border-bottom:2px solid transparent;transition:color .2s ease-in-out}.fd-header .fd-navlink:hover{color:var(--sr-black)}.fd-header .fd-navlink.is-active{color:var(--sr-black);border-bottom-color:var(--sr-black)}.fd-header .fd-join{text-decoration:none;display:inline-flex;align-items:center}.fd-header .fd-join-pill{position:relative;overflow:hidden;isolation:isolate;display:inline-flex;align-items:center;padding:8px 14px;border-radius:var(--sr-radius-pill);background:var(--sr-bg-hud);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);box-shadow:0 4px 16px -8px #0000004d}.fd-header .fd-join-label{position:relative;z-index:1;font-size:13px;letter-spacing:0;color:var(--sr-black);white-space:nowrap}.fd-header .fd-join-prism{position:absolute;inset:0;z-index:0;pointer-events:none;background:radial-gradient(circle at 18% 28%,rgba(161,98,255,.72),transparent 50%),radial-gradient(circle at 78% 30%,rgba(86,250,247,.6),transparent 52%),radial-gradient(circle at 50% 80%,rgba(248,220,187,.55),transparent 60%);filter:blur(10px);opacity:.85;transition:opacity .2s ease-in-out;animation:fd-prism-drift 14s ease-in-out infinite alternate}.fd-header .fd-join:hover .fd-join-prism{opacity:1}@keyframes fd-prism-drift{0%{transform:translate(0) scale(1)}50%{transform:translate(8px,-6px) scale(1.05)}to{transform:translate(-6px,4px) scale(1.02)}}@media(prefers-reduced-motion:reduce){.fd-header .fd-join-prism{animation:none}}.fd-header .fd-join.is-active .fd-join-pill{background:var(--sr-black)}.fd-header .fd-join.is-active .fd-join-label{color:var(--sr-white)}.fd-header .fd-join.is-active .fd-join-prism{display:none}.fd-header-right{margin-left:auto;display:flex;align-items:center;gap:14px}.fd-header .fd-stat{font-size:12px;color:#0000008c}.fd-header .fd-signin{font-size:12px;color:var(--sr-black);text-decoration:none}.fd-header .fd-member{font-size:12px;color:var(--sr-prism-purple)}.fd-header .fd-chip{display:inline-flex;align-items:center;gap:8px;padding:5px 12px 5px 5px;border:1px solid rgba(0,0,0,.3);border-radius:var(--sr-radius-pill);background:var(--sr-bg-hud);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);text-decoration:none;color:var(--sr-black)}.fd-header .fd-chip-dot{width:24px;height:24px;border-radius:50%;background:var(--sr-black);color:var(--sr-white);display:inline-flex;align-items:center;justify-content:center;font-weight:var(--sr-fw-black);font-size:11px}.fd-header .fd-chip-label{font-size:12px}.fd-header .fd-stat[hidden],.fd-header .fd-signin[hidden],.fd-header .fd-member[hidden],.fd-header .fd-join[hidden],.fd-header .fd-chip[hidden]{display:none}@media(max-width:760px){.fd-header{padding:14px 20px;gap:20px}.fd-header-logo svg{height:18px}.fd-nav{gap:16px}.fd-header .fd-navlink{font-size:11px}.fd-header-logo{padding:12px 8px;margin:-12px -8px}.fd-header .fd-navlink{position:relative;padding:13px 6px;margin:-13px -6px;border-bottom:0;min-width:40px;box-sizing:border-box;display:inline-flex;align-items:center;justify-content:center}.fd-header .fd-navlink.is-active:after{content:"";position:absolute;left:6px;right:6px;bottom:11px;height:2px;background:var(--sr-black)}.fd-header .fd-join{padding:7px 0;margin:-7px 0}.fd-header .fd-join-pill{padding:7px 12px}.fd-header .fd-join-label{font-size:11px}.fd-header .fd-stat,.fd-header .fd-signin,.fd-header .fd-member{display:none}.fd-header .fd-chip{padding:8px;margin:-8px;border:0;background:transparent;backdrop-filter:none;-webkit-backdrop-filter:none}.fd-header .fd-chip[hidden],.fd-header .fd-chip-label{display:none}.fd-header-right{gap:0}}@media(max-width:419px){.fd-header{padding:14px 12px;gap:12px}.fd-header-logo svg{height:13px}.fd-header-logo{padding:14px 6px;margin:-14px -6px}.fd-nav{gap:10px}.fd-header .fd-navlink{font-size:10px;padding:14px 4px;margin:-14px -4px}.fd-header .fd-navlink.is-active:after{left:4px;right:4px}.fd-header .fd-join-pill{padding:6px 10px}.fd-header .fd-join-label{font-size:10px}.fd-header .fd-join{padding:8px 0;margin:-8px 0}}