.mesh{position:fixed;inset:0;z-index:0;pointer-events:none;
    background:
      radial-gradient(680px 480px at 12% 8%, rgba(61,111,224,0.07), transparent 60%),
      radial-gradient(600px 500px at 88% 14%, rgba(124,92,224,0.06), transparent 60%),
      radial-gradient(520px 420px at 70% 92%, rgba(204,122,10,0.05), transparent 60%);
  }
header{position:fixed;top:0;left:0;right:0;z-index:100;padding:20px 0;}
header.scrolled{background:rgba(255,255,255,0.82);padding:14px 0;border-bottom:1px solid var(--border);box-shadow:var(--shadow-sm);}
.progress-track{position:absolute;left:0;right:0;bottom:-1px;height:2px;background:transparent;}
.progress-bar{height:100%;width:0%;background:var(--g-primary);}
nav{display:flex;align-items:center;justify-content:space-between;max-width:var(--max);margin:0 auto;padding:0 20px;}
.brand{display:flex;align-items:center;gap:11px;font-weight:700;font-size:16.5px;}
.brand .mark{width:32px;height:32px;border-radius:9px;background:var(--g-primary);display:flex;align-items:center;justify-content:center;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;color:#fff;box-shadow:0 4px 18px rgba(91,141,239,0.35);}
.brand small{display:block;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-weight:400;font-size:9.5px;letter-spacing:.12em;color:var(--muted-2);text-transform:uppercase;margin-top:1px;}
.nav-links{display:flex;gap:2px;align-items:center;}
.nav-links a:not(.nav-cta){color:var(--muted);font-size:13.5px;font-weight:500;padding:9px 11px;border-radius:8px;white-space:nowrap;}
.nav-links a:not(.nav-cta):hover{color:var(--text);background:rgba(16,20,31,0.05);}
.nav-cta{background:var(--g-primary);color:#fff!important;padding:10px 18px;border-radius:9px;font-weight:600!important;font-size:13.5px!important;white-space:nowrap;margin-left:6px;box-shadow:0 6px 20px rgba(91,141,239,0.3);}
.nav-cta:hover{box-shadow:0 10px 26px rgba(91,141,239,0.42);}
.nav-toggle{display:none;}
.nav-utility{display:flex;align-items:center;gap:8px;margin-left:6px;}
.nav-search{position:relative;display:flex;align-items:center;}
.nav-search svg{position:absolute;left:12px;width:14.5px;height:14.5px;color:var(--muted-2);pointer-events:none;}
.nav-search input{width:148px;height:37px;padding:0 12px 0 34px;border-radius:100px;border:1px solid var(--border-2);background:rgba(16,20,31,0.03);font-family:system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;font-size:12.5px;color:var(--text);}
.nav-search input::placeholder{color:var(--muted-2);}
.nav-search input:focus{background:var(--surface);outline:none;border-color:var(--grad-1);box-shadow:0 0 0 3px rgba(61,111,224,0.1);}
.nav-search input:focus + svg,
  .nav-search:has(input:focus) svg{color:var(--grad-1);}
.lang-dropdown{position:relative;}
.lang-btn{display:flex;align-items:center;gap:6px;padding:9px 13px;border-radius:100px;border:1px solid var(--border-2);background:rgba(16,20,31,0.03);font-family:system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;font-size:13px;font-weight:500;color:var(--muted);cursor:pointer;}
.lang-btn:hover{color:var(--text);background:rgba(16,20,31,0.06);}
.lang-btn svg.globe{width:14.5px;height:14.5px;}
.lang-btn svg.chev{width:10px;height:10px;}
.lang-dropdown.open .lang-btn svg.chev{transform:rotate(180deg);}
.lang-menu{position:absolute;top:calc(100% + 8px);right:0;background:var(--surface);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow-md);padding:6px;min-width:168px;opacity:0;visibility:hidden;z-index:120;}
.lang-dropdown.open .lang-menu{opacity:1;visibility:visible;}
.lang-menu a{display:block;padding:9px 12px;border-radius:8px;font-size:13.5px;color:var(--muted);}
.lang-menu a:hover{background:rgba(16,20,31,0.05);color:var(--text);}
.lang-menu a.active{color:var(--grad-1);font-weight:600;}
@media (max-width:900px){
  .nav-utility{flex-direction:column;align-items:stretch;width:100%;margin:16px 0 6px;gap:10px;}
  .nav-search input{width:100%!important;}
  .lang-btn{width:100%;justify-content:space-between;}
  .lang-menu{position:static;box-shadow:none;border:none;padding:2px 0 0 4px;opacity:1;visibility:visible;transform:none;max-height:0;overflow:hidden;}
  .lang-dropdown.open .lang-menu{max-height:280px;}
}
.breadcrumb{position:relative;z-index:1;padding:82px 0 16px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11.5px;color:var(--muted-2);}
.breadcrumb a:hover{color:var(--grad-1);}
.breadcrumb .wrap{display:inline-flex;align-items:center;gap:8px;background:rgba(16,20,31,0.03);border:1px solid var(--border-2);border-radius:100px;padding:7px 14px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11.5px;}
.breadcrumb .wrap::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--grad-1);}
@media (max-width:720px){
  .nav-links{position:fixed;top:0;right:0;height:100vh;width:78%;max-width:320px;background:var(--bg-2);flex-direction:column;align-items:flex-start;padding:100px 28px 40px;gap:10px;transform:translateX(100%);z-index:99;border-left:1px solid var(--border);}
  .nav-links.open{transform:translateX(0);}
  .nav-toggle{display:flex;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;z-index:101;padding:6px;}
  .nav-toggle span{width:22px;height:2px;background:var(--text);display:block;}
}
.jump-nav{position:fixed;right:20px;top:96px;z-index:90;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:14px;box-shadow:var(--shadow-md);width:222px;max-height:calc(100vh - 120px);overflow-y:auto;}
.jn-head{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-2);padding:0 2px 10px;}
.jn-actions{display:flex;flex-direction:column;gap:8px;padding-bottom:14px;}
.jn-btn{display:flex;align-items:center;justify-content:center;gap:6px;padding:11px 12px;border-radius:10px;font-size:12.5px;font-weight:600;text-align:center;white-space:normal;line-height:1.3;}
.jn-btn-primary{background:var(--g-primary);color:#fff;box-shadow:0 8px 18px rgba(91,141,239,0.3);}
.jn-btn-primary:hover{box-shadow:0 12px 24px rgba(91,141,239,0.42);}
.jn-btn-ghost{background:rgba(16,20,31,0.03);border:1px solid var(--border-2);color:var(--text);}
.jn-btn-ghost:hover{background:rgba(16,20,31,0.06);border-color:rgba(16,20,31,0.28);}
.jn-divider{height:1px;background:var(--border);margin:0 2px 10px;}
.jn-section-label{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:9.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-2);padding:0 2px 8px;}
.jump-nav a.jn-link{display:flex;align-items:center;gap:9px;padding:8px 10px;margin:0 -2px;border-radius:8px;border-left:2px solid transparent;font-size:13px;font-weight:600;color:var(--muted);white-space:nowrap;}
.jump-nav a.jn-link .jn-dot{width:6px;height:6px;border-radius:50%;background:var(--border-2);flex-shrink:0;}
.jump-nav a.jn-link:hover{background:var(--bg-2);color:var(--text);}
.jump-nav a.jn-link.active{background:rgba(61,111,224,0.08);color:var(--grad-1);border-left-color:var(--grad-1);}
.jump-nav a.jn-link.active .jn-dot{background:var(--g-primary);}
@media (max-width:900px){
  .jump-nav{display:none;}
}