.product-topbar{--header-accent:#8c82ff;--header-accent-rgb:140,130,255;--header-surface:#0b0f17;position:sticky;top:0;z-index:100;background:rgba(11,15,23,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(var(--header-accent-rgb),.2)}
.product-topbar--vexor{--header-accent:#c3f36b;--header-accent-rgb:195,243,107;--header-surface:#080b12;background:rgba(8,11,18,.92)}
.product-topbar--bitpocket{--header-accent:#c7ef82;--header-accent-rgb:199,239,130;--header-surface:#10130f;background:rgba(16,19,15,.92)}
.product-topbar--bitview{--header-accent:#66e7f4;--header-accent-rgb:102,231,244;--header-surface:#07121d;background:rgba(7,18,29,.94)}
.product-topbar-inner{width:min(1160px,calc(100% - 48px));min-height:72px;margin-inline:auto;display:flex;align-items:center;justify-content:space-between;gap:24px}
.product-brand{display:flex;align-items:center;gap:11px;flex:none;color:#edf2f9;text-decoration:none;font:700 13px/1.5 'Press Start 2P',cursive;letter-spacing:0!important}
.product-brand-mark{width:35px;height:35px;display:grid;place-items:center;border:1px solid rgba(var(--header-accent-rgb),.48);border-radius:8px;background:rgba(var(--header-accent-rgb),.1);color:var(--header-accent);font:9px/1 'Press Start 2P',cursive;box-shadow:0 0 22px rgba(var(--header-accent-rgb),.12)}
.product-brand-name small{display:block;margin-top:5px;color:#94a3b8;font:7px/1.5 'Press Start 2P',cursive;letter-spacing:0}
.product-main-nav{display:flex;align-items:center;justify-content:flex-end;gap:clamp(12px,2vw,24px);color:#94a3b8}
.product-main-nav a{color:inherit;text-decoration:none;font:8px/1.8 'Press Start 2P',cursive;letter-spacing:0!important;white-space:nowrap;transition:color .18s,border-color .18s,background .18s}
.product-main-nav a:hover{color:var(--header-accent)}
.product-main-nav .product-nav-action{padding:9px 12px;border:1px solid rgba(var(--header-accent-rgb),.35);border-radius:3px;background:rgba(var(--header-accent-rgb),.08);color:var(--header-accent)}
.product-main-nav .product-nav-home{padding:10px 13px;border:1px solid var(--header-accent);border-radius:3px;background:var(--header-accent);color:var(--header-surface);box-shadow:0 4px 18px rgba(var(--header-accent-rgb),.18)}
.product-main-nav .product-nav-home:hover{filter:brightness(1.08);color:var(--header-surface)}
.product-menu-toggle{display:none;width:38px;height:36px;place-items:center;gap:4px;border:1px solid rgba(var(--header-accent-rgb),.35);border-radius:3px;background:rgba(var(--header-accent-rgb),.07);color:var(--header-accent);cursor:pointer}
.product-menu-toggle span{display:block;width:15px;height:1px;background:currentColor;transition:transform .18s,opacity .18s}
.product-menu-toggle[aria-expanded=true] span:first-child{transform:translateY(5px) rotate(45deg)}
.product-menu-toggle[aria-expanded=true] span:nth-child(2){opacity:0}
.product-menu-toggle[aria-expanded=true] span:last-child{transform:translateY(-5px) rotate(-45deg)}
@media(max-width:900px){.product-topbar-inner{width:min(1160px,calc(100% - 32px));min-height:64px}.product-menu-toggle{display:grid}.product-main-nav{display:none;position:absolute;top:100%;left:0;right:0;align-items:stretch;gap:0;padding:8px 16px 16px;border-bottom:1px solid rgba(var(--header-accent-rgb),.2);background:var(--header-surface);box-shadow:0 18px 32px rgba(0,0,0,.3)}.product-main-nav.is-open{display:flex;flex-direction:column}.product-main-nav a{padding:12px 9px}.product-main-nav .product-nav-action,.product-main-nav .product-nav-home{text-align:center;margin-top:7px;padding:11px}}
@media(prefers-reduced-motion:reduce){.product-main-nav a,.product-menu-toggle span{transition:none}}