/* hamburger + mobile nav */
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;padding:0 10px;background:transparent;border:1px solid var(--line);border-radius:10px;cursor:pointer}
.nav-toggle span{display:block;width:100%;height:2px;background:var(--gold2);border-radius:2px;transition:transform .35s var(--ease),opacity .25s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media(max-width:980px){
  .nav-toggle{display:flex}
  .nav{display:none;position:fixed;inset:70px 12px auto;flex-direction:column;align-items:stretch;gap:0;padding:10px;border:1px solid var(--line);border-radius:14px;background:rgba(9,11,16,.97);backdrop-filter:blur(18px);box-shadow:var(--shadow);z-index:60}
  .nav.open{display:flex}
  .nav a{padding:14px 16px;border-bottom:1px solid rgba(255,255,255,.05);font-size:11px}
  .nav a:last-child{border-bottom:0}
  .nav a.active:after{left:12px;bottom:auto;top:50%;transform:translateY(-50%)}
}