.mobile-nav-toggle {
  display: none;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--fg);
  border-radius: 999px;
  background: var(--bg);
  color: var(--fg);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.mobile-nav-toggle:focus-visible,
.mobile-nav-close:focus-visible,
.mobile-nav-links a:focus-visible,
.mobile-nav-cta:focus-visible {
  outline: 3px solid var(--muted);
  outline-offset: 4px;
}

.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  overflow-y: auto;
  background: var(--fg);
  color: var(--bg);
  opacity: 0;
  pointer-events: none;
  transform: translateX(100%);
  visibility: hidden;
  transition: opacity .18s ease, transform .55s cubic-bezier(.16, 1, .3, 1), visibility 0s linear .55s;
}

.mobile-nav-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0);
  visibility: visible;
  transition-delay: 0s;
}

/* The site header uses backdrop-filter, which otherwise creates a small fixed-position containing block. */
body.mobile-nav-open .topnav { backdrop-filter: none; }

.mobile-nav-overlay-inner {
  display: flex;
  flex: 1;
  flex-direction: column;
  width: min(100%, 1240px);
  min-height: 100%;
  margin-inline: auto;
  padding: clamp(20px, 4vw, 56px) var(--gutter);
}

.mobile-nav-overlay-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid color-mix(in oklch, var(--bg) 22%, transparent);
}

.mobile-nav-brand,
.mobile-nav-eyebrow,
.mobile-nav-close,
.mobile-nav-cta {
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.mobile-nav-brand { font-weight: 700; }

.mobile-nav-logo {
  display: block;
  width: min(220px, 48vw);
  height: auto;
  filter: brightness(0) invert(1);
}

.mobile-nav-logo-link { display: block; width: max-content; }

.mobile-nav-close {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 4px 0;
  border: 0;
  background: transparent;
  color: var(--bg);
}

.mobile-nav-close-mark {
  font-family: var(--font-body, sans-serif);
  font-size: 30px;
  font-weight: 300;
  line-height: .7;
}

.mobile-nav-links {
  display: grid;
  gap: clamp(10px, 1.5vh, 20px);
  margin-block: auto;
  padding-block: clamp(40px, 8vh, 96px);
}

.mobile-nav-eyebrow {
  margin-bottom: 18px;
  color: var(--muted);
}

.mobile-nav-links a {
  width: max-content;
  max-width: 100%;
  color: var(--bg);
  font-family: var(--font-display);
  font-size: clamp(38px, 8vw, 92px);
  font-style: italic;
  font-weight: 900;
  letter-spacing: -.04em;
  line-height: .9;
  text-transform: uppercase;
}

.mobile-nav-links a:hover,
.mobile-nav-links a:focus-visible { color: var(--muted); }

.mobile-nav-links a[aria-current="page"] { color: var(--muted); }

.mobile-nav-overlay nav {
  display: grid !important;
  gap: clamp(10px, 1.5vh, 20px);
  justify-content: stretch;
}

.mobile-nav-overlay nav ul {
  display: grid;
  gap: inherit;
  margin: 0;
  padding: 0;
  list-style: none;
}

.mobile-nav-overlay nav a {
  display: block;
  color: var(--bg);
  font-family: var(--font-display);
  font-size: clamp(38px, 8vw, 92px);
  font-style: italic;
  font-weight: 900;
  letter-spacing: -.04em;
  line-height: .9;
  text-transform: uppercase;
}

.mobile-nav-overlay-bottom {
  padding-top: 16px;
  border-top: 1px solid color-mix(in oklch, var(--bg) 22%, transparent);
}

.mobile-nav-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--bg);
}

.mobile-nav-cta:hover,
.mobile-nav-cta:focus-visible { color: var(--muted); }

@media (max-width: 900px) {
  html,
  body { overflow-x: clip; }

  .topnav-inner { grid-template-columns: 1fr auto; }
  .topnav > .container > nav:not(.mobile-nav-links),
  .topnav .nav-cta,
  .topnav .btn-primary { display: none !important; }
  .mobile-nav-toggle { display: inline-flex; justify-self: end; }
}

@supports not (overflow: clip) {
  @media (max-width: 900px) {
    html,
    body { overflow-x: hidden; }
  }
}

@media (max-width: 700px) {
  .mobile-nav-overlay-inner { padding-top: 18px; padding-bottom: 24px; }
  .mobile-nav-links { gap: 12px; padding-block: 44px; }
  .mobile-nav-links a { font-size: clamp(36px, 11vw, 58px); }
}

@media (min-width: 901px) {
  .mobile-nav-overlay,
  .mobile-nav-toggle { display: none !important; }
}

@media (prefers-reduced-motion: reduce) {
  .mobile-nav-overlay { transition: none; }
}