.vn-mega-head{--primary:#3660b3;--primary-600:#2f549e;--accent:#47bbd1;--fg:#111a27;--muted:#5a6b82;--subtle:#94a3b8;--line:#e5e9ef;--head-bg:#fff;--grad:linear-gradient(120deg,#3660b3,#4e8ad0 55%,#47bbd1);--font-h:"Space Grotesk",ui-sans-serif,system-ui,sans-serif;--font-b:"Inter",ui-sans-serif,system-ui,-apple-system,sans-serif;--mono:ui-monospace,"SF Mono",Menlo,monospace;--head-h:66px;position:fixed;top:0;left:0;right:0;z-index:50;background:var(--head-bg);border-bottom:1px solid var(--line);font-family:var(--font-b);color:var(--fg);transition:border-color .2s,background .25s}.vn-mega-head a{text-decoration:none;color:inherit}:where(.vn-mega-head) button{font:inherit;color:inherit;background:none;cursor:pointer}.vn-mega-head.mopen{border-bottom-color:transparent}.vn-mega-head .bar{display:flex;align-items:center;gap:4px;max-width:1180px;height:var(--head-h);margin:0 auto;padding:0 32px}.vn-mega-head .brand{display:flex;align-items:center;gap:10px;margin-right:26px}.vn-mega-head .brand-tile{width:32px;height:32px;border-radius:9px;background:var(--grad);display:flex;align-items:center;justify-content:center;flex:none}.vn-mega-head .brand-text{display:flex;flex-direction:column;gap:2px}.vn-mega-head .brand-name{font-family:var(--font-h);font-weight:700;font-size:17px;letter-spacing:-.02em;color:var(--fg);line-height:1}.vn-mega-head .brand-by{font-size:10.5px;font-weight:500;color:var(--muted);letter-spacing:.005em;line-height:1}.vn-mega-head .nav-link{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:500;color:var(--muted);padding:9px 13px;border-radius:9px;transition:background .15s,color .15s;white-space:nowrap}.vn-mega-head .nav-link:hover{color:var(--fg);background:#f4f6f9}.vn-mega-head .actions{margin-left:auto;display:flex;align-items:center;gap:14px}.vn-mega-head .ghost{font-size:14.5px;font-weight:500;color:var(--muted);transition:color .15s;white-space:nowrap}.vn-mega-head .ghost:hover{color:var(--fg)}.vn-mega-head .btn{display:inline-flex;align-items:center;height:38px;padding:0 17px;border-radius:9px;background:var(--primary);color:#fff;font-size:14px;font-weight:600;transition:background .15s;white-space:nowrap}.vn-mega-head .btn:hover{background:var(--primary-600)}.vn-mega-head .act-skel{width:132px;height:38px;border-radius:9px;background:linear-gradient(90deg,#eef1f6,#f6f8fb 50%,#eef1f6);background-size:200% 100%;animation:vn-head-skel 1.3s ease-in-out infinite}@keyframes vn-head-skel{to{background-position:-200% 0}}.vn-mega-head .hamb{display:none;flex-direction:column;margin-left:auto;width:42px;height:42px;border-radius:10px;align-items:center;justify-content:center;color:var(--fg)}.vn-mega-head .hamb:hover{background:#f4f6f9}.vn-mega-head .hamb .ln{display:block;width:19px;height:2px;border-radius:2px;background:currentColor;transition:transform .22s,opacity .18s}.vn-mega-head .hamb .ln+.ln{margin-top:4px}.vn-mega-head.mopen .hamb .ln:first-child{transform:translateY(6px) rotate(45deg)}.vn-mega-head.mopen .hamb .ln:nth-child(2){opacity:0}.vn-mega-head.mopen .hamb .ln:nth-child(3){transform:translateY(-6px) rotate(-45deg)}.vn-mega-head .scrim{position:fixed;left:0;right:0;top:var(--head-h);bottom:0;z-index:40;background:rgba(15,23,42,.18);opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s}.vn-mega-head .scrim.show{opacity:1;visibility:visible}.vn-mega-head .mprelayers{display:none;position:fixed;top:var(--head-h);right:0;bottom:0;z-index:44;width:clamp(300px,88vw,400px);pointer-events:none;overflow:hidden}.vn-mega-head .mprelayer{position:absolute;inset:0;background:var(--grad);visibility:hidden}.vn-mega-head .msheet{display:none;position:fixed;top:var(--head-h);right:0;bottom:0;z-index:46;background:#fff;border-left:1px solid var(--line);box-shadow:-18px 0 34px rgba(17,26,39,.14);width:clamp(300px,88vw,400px);visibility:hidden;overflow-y:auto}.vn-mega-head .mwrap{padding:18px 20px 26px}.vn-mega-head .mlink{display:flex;align-items:center;gap:10px;padding:13px 8px;border-radius:10px;font-size:15px;font-weight:600;color:var(--fg)}.vn-mega-head .mlink:hover{background:#f4f6f9}.vn-mega-head .mlink:before{content:attr(data-index);font-family:var(--mono);font-size:11px;font-weight:600;color:var(--primary);letter-spacing:.02em}.vn-mega-head .mact{display:flex;flex-direction:column;gap:10px;margin-top:14px}.vn-mega-head .mact .btn,.vn-mega-head .mact .mghost{height:46px;justify-content:center;font-size:15px}.vn-mega-head .mact .mghost{display:flex;align-items:center;border-radius:9px;border:1px solid var(--line);font-weight:600;color:var(--fg);background:none;cursor:pointer}@media (max-width:860px){.vn-mega-head .bar{padding:0 20px}.vn-mega-head .actions,.vn-mega-head .nav-link{display:none}.vn-mega-head .hamb{display:flex}.vn-mega-head .mprelayers,.vn-mega-head .msheet{display:block}}@media (prefers-reduced-motion:reduce){.vn-mega-head .act-skel,.vn-mega-head .scrim{transition:none;animation:none}}