/* ===== MOBILE NAV · FLOATING LIQUID GLASS ===== */
  .nav-toggle{
    display:none;position:relative;z-index:122;
    width:42px;height:42px;border-radius:15px;
    border:1px solid rgba(255,255,255,.24);
    background:rgba(255,255,255,.07);color:#fff;cursor:pointer;
    -webkit-backdrop-filter:blur(16px) saturate(150%);backdrop-filter:blur(16px) saturate(150%);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.16),0 4px 14px rgba(0,0,0,.12);
    align-items:center;justify-content:center;flex-direction:column;gap:4px;
    transition:background .22s ease,border-color .22s ease,transform .22s ease;
  }
  .nav-toggle:active{transform:scale(.96);}
  .nav-toggle.open{background:rgba(104,117,255,.2);border-color:rgba(255,255,255,.34);}
  .nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .24s ease,opacity .2s ease;}
  .nav-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
  .nav-toggle.open span:nth-child(2){opacity:0;}
  .nav-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
  .mobile-nav-backdrop{
    /* Keep the dimming layer below the fixed header's stacking context so the menu stays crisp. */
    position:fixed;inset:0;z-index:99;border:0;padding:0;
    background:rgba(3,6,18,.48);
    opacity:0;visibility:hidden;pointer-events:none;transition:opacity .24s ease,visibility .24s ease;
  }
  .mobile-nav-backdrop.open{opacity:1;visibility:visible;pointer-events:auto;}
  .nav-links.mobile-open{
    display:flex!important;position:absolute;top:calc(100% + 10px);left:12px;right:12px;z-index:120;
    flex-direction:column;align-items:stretch;gap:3px;
    max-height:calc(100dvh - 125px);overflow-y:auto;overscroll-behavior:contain;
    padding:17px;border:1px solid rgba(255,255,255,.19);border-radius:24px;
    background:
      radial-gradient(ellipse at 12% 0%,rgba(92,119,255,.13),transparent 48%),
      radial-gradient(ellipse at 95% 8%,rgba(160,112,255,.10),transparent 42%),
      linear-gradient(155deg,rgba(27,34,61,.92),rgba(10,14,31,.95));
    -webkit-backdrop-filter:blur(18px) saturate(140%);backdrop-filter:blur(18px) saturate(140%);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.17),0 22px 60px rgba(0,0,0,.34);
    transform:translateY(-7px) scale(.99);transform-origin:top center;
    opacity:0;visibility:hidden;pointer-events:none;
    transition:transform .25s ease,opacity .2s ease,visibility .2s ease;
  }
  .nav-links.mobile-open a{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    width:100%;min-height:46px;box-sizing:border-box;padding:11px 12px;
    border:1px solid transparent;border-radius:13px;color:#f3f5ff;
    font-size:15.5px;font-weight:550;transition:background .18s ease,border-color .18s ease;
  }
  .nav-links.mobile-open .nav-dropdown{width:100%;}
  .nav-links.mobile-open .nav-dropdown summary{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    min-height:46px;padding:11px 12px;border:1px solid transparent;border-radius:13px;
    color:#f3f5ff;font-size:15.5px;font-weight:550;cursor:pointer;
  }
  .nav-links.mobile-open .nav-submenu{
    position:static;min-width:0;margin:0 0 5px 10px;padding:4px 0 4px 8px;
    border:0;border-left:1px solid rgba(255,255,255,.18);border-radius:0;
    background:transparent;box-shadow:none;backdrop-filter:none;
  }
  .nav-links.mobile-open .nav-submenu a{min-height:40px;padding:8px 12px 8px 16px;font-size:14px;color:#cbd3ef;}
  .nav-links.mobile-open>a::after{content:"↗";font-size:13px;color:rgba(190,198,255,.7);}
  .nav-links.mobile-open>a:hover,.nav-links.mobile-open>a:focus-visible{background:rgba(255,255,255,.065);border-color:rgba(255,255,255,.08);outline:none;}
  .nav-links.mobile-open.mobile-menu-visible{transform:translateY(0) scale(1);opacity:1;visibility:visible;pointer-events:auto;}
  .mobile-nav-footer{
    display:none;flex-direction:column;gap:6px;margin-top:10px;padding:15px 10px 2px;
    border-top:1px solid rgba(255,255,255,.11);
  }
  .nav-links.mobile-open .mobile-nav-footer{display:flex;}
  .mobile-nav-footer p{margin:0;color:#fff;font-size:15px;font-weight:750;letter-spacing:-.02em;}
  .mobile-nav-footer>span{color:#bac3e3;font-size:12px;line-height:1.5;}
  .nav-links.mobile-open .mobile-nav-footer a{min-height:44px;margin-top:5px;justify-content:center;font-size:14px;font-weight:700;}
  .nav-links.mobile-open .mobile-nav-footer .mobile-nav-cta{color:#fff;background:linear-gradient(110deg,#4667f5,#7358ff);border-color:rgba(255,255,255,.2);box-shadow:0 7px 20px rgba(73,83,255,.22);}
  .nav-links.mobile-open .mobile-nav-footer .mobile-nav-cta::after,.nav-links.mobile-open .mobile-nav-footer .mobile-nav-login::after{content:none;}
  .nav-links.mobile-open .mobile-nav-footer .mobile-nav-login{min-height:46px;margin-top:0;color:#fff;background:linear-gradient(110deg,#4667f5,#7358ff);border-color:rgba(255,255,255,.2);box-shadow:0 7px 20px rgba(73,83,255,.22);}
  body.mobile-nav-active{overflow:hidden;}
  @media(max-width:480px){
    .nav-links.mobile-open{left:8px;right:8px;padding:13px;border-radius:22px;max-height:calc(100dvh - 112px);}
    .nav-links.mobile-open>a{min-height:44px;padding:10px 11px;font-size:15px;}
    .mobile-nav-footer{padding:12px 8px 2px;}
  }
  @media(prefers-reduced-motion:reduce){
    .nav-toggle,.nav-toggle span,.mobile-nav-backdrop,.nav-links.mobile-open,.nav-links.mobile-open a{transition:none!important;}
  }