/* Global site header: fixed bar + mobile menu panel.
   Shared by index.html, careers.html, and the job listing pages.
   Colour tokens come from the including page (:root). */

/* ---------- NAV ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 40px;
  background:rgba(14,13,11,0.72);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .3s ease, background .3s ease;
}
.nav.scrolled{border-bottom-color:var(--line)}
.nav__logo{display:flex;align-items:center;gap:14px}
.nav__logo img{height:34px;width:auto}
.nav__tag{
  font-family:'Space Mono',monospace;font-size:10px;letter-spacing:0.18em;
  text-transform:uppercase;color:var(--cream-mut);
  padding-left:14px;border-left:1px solid var(--line);
}
.nav__links{display:flex;align-items:center;gap:34px}
.nav__links a{
  font-size:14px;font-weight:500;color:var(--cream-dim);
  position:relative;transition:color .2s ease;
}
.nav__links a::after{
  content:'';position:absolute;left:0;bottom:-6px;height:2px;width:0;
  background:var(--red);transition:width .25s ease;
}
.nav__links a:hover{color:var(--cream)}
.nav__links a:hover::after{width:100%}
.nav__cta{
  display:inline-flex;align-items:center;gap:9px;
  background:var(--red);color:var(--cream);
  font-weight:600;font-size:14px;
  padding:11px 18px;border-radius:2px;white-space:nowrap;
  transition:transform .15s ease, background .2s ease;
}
.nav__cta:hover{background:var(--red-deep);transform:translateY(-1px)}
.nav__cta .dot{width:7px;height:7px;border-radius:50%;background:var(--cream);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
.nav__menu-btn{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;margin-right:-10px;
  background:none;border:0;padding:0;cursor:pointer;color:var(--cream);
  -webkit-tap-highlight-color:transparent;
}
.nav__menu-bars{position:relative;display:block;width:24px;height:14px}
.nav__menu-bars i{
  position:absolute;left:0;height:2px;background:var(--cream);border-radius:2px;
  transition:transform .34s cubic-bezier(.22,1,.36,1), width .34s cubic-bezier(.22,1,.36,1);
}
.nav__menu-bars i:nth-child(1){top:0;width:100%}
.nav__menu-bars i:nth-child(2){bottom:0;width:15px}
.nav__menu-btn[aria-expanded="true"] .nav__menu-bars i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav__menu-btn[aria-expanded="true"] .nav__menu-bars i:nth-child(2){width:100%;transform:translateY(-6px) rotate(-45deg)}

/* ---------- MOBILE MENU ---------- */
/* Sibling of .nav, never a child: .nav uses backdrop-filter, which makes it
   the containing block for fixed descendants and would trap this panel. */
.mnav{
  position:fixed;inset:0;z-index:99;
  display:flex;flex-direction:column;justify-content:space-between;
  padding:calc(96px + env(safe-area-inset-top,0px)) 22px calc(30px + env(safe-area-inset-bottom,0px));
  background:var(--ink);
  opacity:0;visibility:hidden;
  transition:opacity .34s cubic-bezier(.22,1,.36,1), visibility 0s linear .34s;
}
.mnav.open{opacity:1;visibility:visible;transition-delay:0s}
.mnav__grain{
  position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.045'/%3E%3C/svg%3E");
}
.mnav__list{position:relative;display:flex;flex-direction:column}
.mnav__link{
  display:flex;align-items:baseline;gap:16px;
  padding:18px 0;border-bottom:1px solid var(--line);
  opacity:0;transform:translateY(16px);
}
.mnav.open .mnav__link{opacity:1;transform:none;
  transition:opacity .5s cubic-bezier(.22,1,.36,1), transform .5s cubic-bezier(.22,1,.36,1)}
.mnav.open .mnav__link:nth-child(1){transition-delay:.06s}
.mnav.open .mnav__link:nth-child(2){transition-delay:.11s}
.mnav.open .mnav__link:nth-child(3){transition-delay:.16s}
.mnav.open .mnav__link:nth-child(4){transition-delay:.21s}
.mnav.open .mnav__link:nth-child(5){transition-delay:.26s}
.mnav__num{
  font-family:'Space Mono',monospace;font-size:11px;letter-spacing:.18em;
  color:var(--cream-mut);flex:none;width:26px;
}
.mnav__label{
  font-family:'Archivo Expanded',sans-serif;font-weight:800;font-stretch:125%;
  letter-spacing:-0.02em;line-height:1;
  font-size:clamp(30px,8.5vw,42px);
  transition:color .2s ease,transform .3s cubic-bezier(.22,1,.36,1);
}
.mnav__link:active .mnav__label{color:var(--red);transform:translateX(6px)}
.mnav__link:focus-visible{outline:2px solid var(--red);outline-offset:6px;border-radius:2px}
.mnav__foot{position:relative;opacity:0;transform:translateY(16px)}
.mnav.open .mnav__foot{opacity:1;transform:none;
  transition:opacity .5s cubic-bezier(.22,1,.36,1) .3s, transform .5s cubic-bezier(.22,1,.36,1) .3s}
.mnav__cta{
  display:flex;align-items:center;justify-content:center;gap:9px;
  background:var(--red);color:var(--cream);
  font-weight:600;font-size:16px;
  padding:17px 20px;border-radius:2px;
  transition:background .2s ease;
}
.mnav__cta:active{background:var(--red-deep)}
.mnav__cta .dot{width:7px;height:7px;border-radius:50%;background:var(--cream);animation:pulse 1.6s infinite}
.mnav__meta{
  margin-top:18px;text-align:center;
  font-family:'Space Mono',monospace;font-size:10px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--cream-mut);
}
body.menu-open{overflow:hidden}

/* ---------- RESPONSIVE ---------- */
@media(max-width:900px){
  .nav__links{display:none}
  .nav__tag{display:none}
  .nav__menu-btn{display:inline-flex}
}
/* Below 720 the bar is essentially logo + control, so the wordmark carries
   the brand alone — give it more height and take back the dead padding
   that left it smaller than the menu button sitting next to it.
   These two blocks both match on a phone, so the 600 one must stay last
   to win the cascade. */
@media(max-width:720px){
  .nav{padding:12px 22px}
  .nav__logo img{height:40px}
}
@media(max-width:600px){
  /* the bar reduces to logo + control; the panel carries the CTA */
  .nav__cta{display:none}
  .nav{padding:9px 18px}
  .nav__logo img{height:46px}
}
@media(prefers-reduced-motion:reduce){
  .mnav,.mnav__link,.mnav__foot,.mnav__label,.nav__menu-bars i{transition:none!important}
  .mnav.open .mnav__link,.mnav.open .mnav__foot{transition-delay:0s!important}
}