.site-header{position:sticky;top:0;z-index:300;padding:12px 0;background:transparent;transition:padding .2s ease}
.header-shell{height:64px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:26px;padding:0 12px 0 16px;border:1px solid rgba(255,255,255,.075);border-radius:18px;background:rgba(10,8,14,.78);box-shadow:0 12px 42px rgba(0,0,0,.18);-webkit-backdrop-filter:blur(18px) saturate(125%);backdrop-filter:blur(18px) saturate(125%);transition:background .2s ease,border-color .2s ease,box-shadow .2s ease}
.site-header.scrolled{padding-top:8px;padding-bottom:8px}.site-header.scrolled .header-shell{background:rgba(8,7,11,.94);border-color:rgba(255,255,255,.095);box-shadow:0 16px 48px rgba(0,0,0,.32)}
.brand{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto;min-width:0}
.brand-symbol{position:relative;display:block;width:36px;height:36px;flex:0 0 auto;border:1px solid rgba(167,139,250,.24);border-radius:11px;background:#100c17;overflow:hidden;box-shadow:inset 0 1px 0 rgba(255,255,255,.05)}
.brand-symbol::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 30% 20%,rgba(139,92,246,.22),transparent 55%)}
.brand-symbol i{position:absolute;top:9px;width:6px;height:18px;border-radius:2px;background:#d9cbf7;transform:skewX(-20deg)}
.brand-symbol i:first-child{left:10px}.brand-symbol i:last-child{right:10px;background:#8b5cf6}
.brand-copy{display:flex;flex-direction:column;gap:2px}.brand-copy strong{font:800 14px/1 "Inter Tight","Inter",sans-serif;letter-spacing:.08em}.brand-copy small{color:#756f7d;font:700 8px/1.1 "Inter",sans-serif;letter-spacing:.22em}
.nav{justify-self:center;display:flex;align-items:center;gap:2px}
.nav a{position:relative;padding:10px 12px;color:#9b94a3;font-size:12.5px;font-weight:600;line-height:1;transition:color .18s ease,background-color .18s ease}
.nav a::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:999px;background:#8b5cf6;opacity:0;transform:scaleX(.45);transition:opacity .18s ease,transform .18s ease}
.nav a:hover{color:#e9e5ed}.nav a.active{color:#fff}.nav a.active::after{opacity:1;transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;justify-content:flex-end;gap:8px;min-width:178px}
.header-login{display:inline-flex;align-items:center;gap:10px;min-height:42px;padding:5px 13px 5px 6px;border:1px solid rgba(255,255,255,.1);border-radius:12px;background:rgba(255,255,255,.035);color:#f3eff7;font-size:12.5px;font-weight:700;transition:background-color .18s ease,border-color .18s ease,color .18s ease}
.header-login:hover{background:rgba(255,255,255,.065);border-color:rgba(139,92,246,.3)}
.header-login-icon{display:grid;place-items:center;width:31px;height:31px;border-radius:9px;background:#5865f2;color:#fff}.header-login-icon svg{width:17px;height:17px}
.user-chip{display:flex;align-items:center;gap:10px;min-width:0;padding:4px 9px 4px 4px;border:1px solid transparent;border-radius:12px;transition:background-color .18s ease,border-color .18s ease}.user-chip:hover{background:rgba(255,255,255,.035);border-color:var(--border)}
.user-avatar{display:grid;place-items:center;width:34px;height:34px;flex:0 0 auto;border-radius:9px;background:#17131f;border:1px solid var(--border);color:#cbb8ed;font-size:12px;font-weight:800;overflow:hidden}.user-avatar img{width:100%;height:100%;object-fit:cover}
.user-chip-copy{display:flex;min-width:0;flex-direction:column;gap:1px}.user-chip-copy small{color:#706978;font-size:8.5px;font-weight:600}.user-chip-copy strong{max-width:110px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:11.5px;font-weight:700}
.header-logout-form{margin:0;line-height:0}.header-icon-btn{display:grid;place-items:center;width:37px;height:37px;padding:0;border:1px solid var(--border);border-radius:10px;background:rgba(255,255,255,.025);color:#8f8799;cursor:pointer;transition:color .18s ease,background-color .18s ease,border-color .18s ease}.header-icon-btn:hover{color:#fff;border-color:rgba(139,92,246,.25);background:rgba(139,92,246,.07)}.header-icon-btn svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.mobile-menu{display:none;width:40px;height:40px;border:1px solid var(--border);border-radius:10px;background:rgba(255,255,255,.025);cursor:pointer}.mobile-menu span{display:block;width:17px;height:1.5px;margin:4px auto;background:#d8d2de;transition:transform .18s ease,opacity .18s ease}.mobile-menu.active span:nth-child(1){transform:translateY(5.5px) rotate(45deg)}.mobile-menu.active span:nth-child(2){opacity:0}.mobile-menu.active span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}
@media(max-width:1040px){.header-shell{grid-template-columns:auto 1fr auto}.nav{position:fixed;left:26px;right:26px;top:84px;display:grid;gap:2px;padding:9px;border:1px solid var(--border-strong);border-radius:15px;background:rgba(10,8,14,.98);box-shadow:var(--shadow-lg);-webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px);opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .18s ease,visibility .18s ease,transform .18s ease}.site-header.scrolled .nav{top:76px}.nav.open{opacity:1;visibility:visible;transform:translateY(0)}.nav a{padding:13px}.nav a::after{left:13px;right:auto;bottom:5px;width:26px}.mobile-menu{display:block}.nav-actions{justify-self:end}.header-login span:last-child{display:none}.header-login{width:42px;padding:5px}.header-login-icon{width:30px;height:30px}}
@media(max-width:600px){.site-header{padding:8px 0}.header-shell{height:58px;padding-left:11px;padding-right:9px;border-radius:15px;gap:10px}.brand-copy{display:none}.nav-actions{min-width:0}.user-chip-copy{display:none}.user-chip{padding:3px}.header-icon-btn{display:none}.mobile-menu{width:38px;height:38px}.nav{left:16px;right:16px;top:76px}.site-header.scrolled .nav{top:72px}}

/* Mobile navigation polish */
@media(max-width:1040px){
  .nav{max-height:calc(100dvh - 108px);overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch}
  body.nav-open{overflow:hidden}
  .mobile-menu{touch-action:manipulation}
}
@media(max-width:600px){
  .site-header{padding-left:max(0px,env(safe-area-inset-left));padding-right:max(0px,env(safe-area-inset-right))}
  .header-shell{width:calc(100% - 24px)}
  .nav{left:12px;right:12px;top:74px;padding:8px;border-radius:14px}
  .site-header.scrolled .nav{top:70px}
  .nav a{min-height:44px;display:flex;align-items:center;padding:13px 14px;font-size:13px}
  .header-login,.user-chip,.mobile-menu{min-width:40px;min-height:40px}
}
@media(max-width:380px){
  .header-shell{width:calc(100% - 18px);padding-left:9px;padding-right:7px}
  .brand-symbol{width:34px;height:34px}
  .header-login{width:40px}
  .mobile-menu{width:36px;height:36px}
}

.mobile-nav-account{display:none}
@media(max-width:1040px){
  .mobile-nav-account{display:grid;grid-template-columns:1fr auto;align-items:center;gap:8px;margin-top:6px;padding:10px 6px 2px;border-top:1px solid var(--border-soft)}
  .mobile-nav-account>a{min-height:42px;display:flex;align-items:center;padding:10px 12px!important;border-radius:10px;background:rgba(255,255,255,.025);color:#cfc7d8!important}
  .mobile-nav-account>a::after{display:none}
  .mobile-nav-account form{margin:0}
  .mobile-nav-account button{min-height:42px;padding:0 14px;border:1px solid var(--border);border-radius:10px;background:rgba(255,255,255,.025);color:#9b94a3;font:650 12px/1 "Inter",sans-serif;cursor:pointer}
  .mobile-nav-account button:hover{color:#fff;border-color:rgba(139,92,246,.25);background:rgba(139,92,246,.06)}
}
@media(max-width:420px){.mobile-nav-account{grid-template-columns:1fr}.mobile-nav-account button{width:100%}}