/* new-home nav - floats over the hero, frosted glass once the page scrolls, doors always reachable. */

#nh-nav {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--nh-nav-h);
  z-index: var(--nh-z-nav);
  color: var(--nh-text);
}

/* ---------- no-JS / not-yet-mounted fallback bar ---------- */
.nh-nav__fallback {
  height: var(--nh-nav-h);
  display: flex;
  align-items: center;
  gap: var(--nh-space-4);
  padding-inline: var(--nh-gutter);
  background: var(--nh-surface-glass);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  backdrop-filter: blur(18px) saturate(1.4);
  overflow-x: auto;
  white-space: nowrap;
}
.nh-nav__fallback a:not(.nh-btn) { color: var(--nh-text); text-decoration: none; font-size: var(--nh-fs-sm); }
.nh-nav__fallback .nh-nav__brand { display: inline-flex; align-items: center; gap: 8px; margin-right: auto; font-family: var(--nh-font-display); font-size: 1.25rem; }

/* ---------- the bar ---------- */
.nh-nav__bar {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
  gap: var(--nh-space-4);
  padding-inline: max(var(--nh-gutter), env(safe-area-inset-left)) max(var(--nh-gutter), env(safe-area-inset-right));
  max-width: calc(var(--nh-container-wide) + 2 * var(--nh-gutter));
  margin-inline: auto;
}
/* the glass lives on a pseudo-element so it can fade in without repainting the links */
#nh-nav::before {
  content: '';
  position: absolute;
  inset: 0 0 -20px 0;
  z-index: -1;
  /* at the top of the page the bar floats on footage: a soft scrim keeps the links readable (AA) */
  background: linear-gradient(180deg, color-mix(in srgb, var(--nh-bg) 88%, transparent) 0%, color-mix(in srgb, var(--nh-bg) 55%, transparent) 62%, transparent 100%);
  transition: background-color var(--nh-dur-slow) var(--nh-ease-out), border-color var(--nh-dur-slow) var(--nh-ease-out), opacity var(--nh-dur-slow);
  border-bottom: 1px solid transparent;
}
#nh-nav.nh-scrolled::before, html.nh-menu-open #nh-nav::before {
  inset: 0;
  background: var(--nh-surface-glass);
  -webkit-backdrop-filter: blur(20px) saturate(1.6);
  backdrop-filter: blur(20px) saturate(1.6);
  border-bottom-color: var(--nh-divider);
}
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  #nh-nav.nh-scrolled::before { background: var(--nh-bg); }
}

/* ---------- brand ---------- */
.nh-nav__brand {
  display: inline-flex;
  align-items: center;
  min-height: var(--nh-tap);
  padding-inline: 4px;
  margin-left: -4px;
  color: var(--nh-heading);
  text-decoration: none;
  border-radius: var(--nh-radius-sm);
  flex: none;
}
.nh-nav__brand .nh-lockup { font-size: 1.625rem; }
.nh-nav__brand .nh-lockup__mark { transition: transform var(--nh-dur-slow) var(--nh-ease-spring); }
.nh-nav__brand:hover .nh-lockup__mark { transform: translateY(0.02em) rotate(calc(-8deg * var(--nh-move))) scale(calc(1 + 0.08 * var(--nh-move))); }

/* ---------- section links ---------- */
.nh-nav__links { position: relative; margin-inline: auto; }
.nh-nav__links ul { display: flex; gap: var(--nh-space-1); margin: 0; padding: 0; list-style: none; }
.nh-nav__link {
  display: inline-flex;
  align-items: center;
  min-height: var(--nh-tap);
  padding: 0 14px;
  border-radius: var(--nh-radius-pill);
  font-family: var(--nh-font-display);
  font-size: var(--nh-fs-sm);
  font-weight: var(--nh-weight-regular);
  letter-spacing: 0.01em;
  color: var(--nh-text);
  text-decoration: none;
  transition: color var(--nh-dur-fast) var(--nh-ease-out), background-color var(--nh-dur-fast);
}
.nh-nav__link:hover { color: var(--nh-text); background: var(--nh-accent-soft); text-decoration: none; }
.nh-nav__link[aria-current] { color: var(--nh-heading); }
.nh-nav__indicator {
  position: absolute;
  left: 0;
  bottom: 4px;
  height: 2px;
  width: 0;
  border-radius: 2px;
  background: var(--nh-accent);
  opacity: 0;
  transition: transform var(--nh-dur-slow) var(--nh-ease-out), width var(--nh-dur-slow) var(--nh-ease-out), opacity var(--nh-dur-base);
  pointer-events: none;
}
.nh-nav__indicator.is-on { opacity: 1; }

/* ---------- tools: language, theme, doors, menu ---------- */
.nh-nav__tools { display: flex; align-items: center; gap: var(--nh-space-2); flex: none; }

.nh-lang {
  display: inline-flex;
  align-items: center;
  padding: 0;
  border: 1px solid var(--nh-border);
  border-radius: var(--nh-radius-pill);
}
.nh-lang__opt {
  display: inline-grid;
  place-items: center;
  min-width: var(--nh-tap);
  min-height: var(--nh-tap);
  padding: 0 10px;
  border-radius: var(--nh-radius-pill);
  font-family: var(--nh-font-display);
  font-size: var(--nh-fs-xs);
  font-weight: var(--nh-weight-medium);
  letter-spacing: 0.08em;
  color: var(--nh-text);
  text-decoration: none;
  transition: color var(--nh-dur-fast), background-color var(--nh-dur-fast);
}
.nh-lang__opt:hover { color: var(--nh-text); text-decoration: none; }
.nh-lang__opt[aria-current] { background: var(--nh-text); color: var(--nh-bg); }

.nh-theme {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: var(--nh-tap);
  height: var(--nh-tap);
  padding: 0;
  border: 1px solid var(--nh-border);
  border-radius: var(--nh-radius-round);
  background: transparent;
  color: var(--nh-text);
  transition: color var(--nh-dur-fast), border-color var(--nh-dur-fast), background-color var(--nh-dur-fast);
}
.nh-theme:hover { color: var(--nh-text); border-color: var(--nh-border-strong); }
.nh-theme:focus-visible { border-radius: var(--nh-radius-round); }
.nh-theme__icon { grid-area: 1 / 1; display: grid; place-items: center; transition: opacity var(--nh-dur-base) var(--nh-ease-out), transform var(--nh-dur-slow) var(--nh-ease-out); }
.nh-theme__icon .nh-icon { width: 20px; height: 20px; }
/* show what you will GET: in the dark, the sun */
.nh-theme[data-current="dark"] .nh-theme__icon--moon,
.nh-theme[data-current="light"] .nh-theme__icon--sun { opacity: 0; transform: rotate(calc(-90deg * var(--nh-move))) scale(calc(1 - 0.4 * var(--nh-move))); }

.nh-nav__door { position: relative; }
.nh-nav__door-short { display: none; }
.nh-nav__door .nh-icon { width: 18px; height: 18px; }

.nh-nav__menu-btn {
  display: none;
  place-items: center;
  width: var(--nh-tap);
  height: var(--nh-tap);
  padding: 0;
  border: 1px solid var(--nh-border);
  border-radius: var(--nh-radius-round);
  background: transparent;
  color: var(--nh-text);
}
.nh-nav__menu-btn:focus-visible { border-radius: var(--nh-radius-round); }
.nh-burger { position: relative; width: 18px; height: 10px; }
.nh-burger span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1.6px;
  border-radius: 2px;
  background: currentColor;
  transition: transform var(--nh-dur-base) var(--nh-ease-out), top var(--nh-dur-base) var(--nh-ease-out);
}
.nh-burger span:first-child { top: 0; }
.nh-burger span:last-child { top: 8.4px; }
.nh-nav__menu-btn[aria-expanded="true"] .nh-burger span:first-child { top: 4.2px; transform: rotate(45deg); }
.nh-nav__menu-btn[aria-expanded="true"] .nh-burger span:last-child { top: 4.2px; transform: rotate(-45deg); }

/* ---------- reading progress ---------- */
.nh-nav__progress { position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; overflow: hidden; pointer-events: none; opacity: 0; transition: opacity var(--nh-dur-slow); }
.nh-nav__progress > span { display: block; height: 100%; background: linear-gradient(90deg, var(--nh-accent-strong), var(--nh-accent)); transform-origin: 0 50%; transform: scaleX(0); }
#nh-nav.nh-scrolled .nh-nav__progress { opacity: 1; }

/* ---------- responsive ---------- */
@media (max-width: 1180px) {
  .nh-nav__door--partner { display: none; }
}
@media (max-width: 1023px) {
  .nh-nav__links, .nh-nav__lang, .nh-nav__theme { display: none; }
  .nh-nav__tools { margin-left: auto; }
  .nh-nav__menu-btn { display: inline-grid; }
}
@media (max-width: 520px) {
  .nh-nav__brand .nh-lockup { font-size: 1.375rem; }
  /* the full words stay the accessible name; the short ones are only what is seen */
  .nh-nav__door-long { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
  .nh-nav__door-short { display: inline; }
  .nh-nav__door { padding-inline: 1em; }
}
@media (max-width: 359px) {
  .nh-nav__door .nh-icon { display: none; }
}

/* ---------- mobile menu sheet ---------- */
.nh-menu { position: fixed; inset: 0; z-index: var(--nh-z-menu); }
.nh-menu[hidden] { display: none; }
.nh-menu__scrim {
  position: absolute;
  inset: 0;
  background: var(--nh-scrim);
  opacity: 0;
  transition: opacity var(--nh-dur-slow) var(--nh-ease-out);
}
.nh-menu__sheet {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  gap: var(--nh-space-6);
  padding: 0 max(var(--nh-gutter), env(safe-area-inset-right)) max(var(--nh-space-6), env(safe-area-inset-bottom)) max(var(--nh-gutter), env(safe-area-inset-left));
  background: var(--nh-bg);
  overflow-y: auto;
  overscroll-behavior: contain;
  opacity: 0;
  transform: translateY(calc(-12px * var(--nh-move)));
  transition: opacity var(--nh-dur-slow) var(--nh-ease-out), transform var(--nh-dur-slow) var(--nh-ease-out);
}
/* a faint echo of the rings behind the menu */
.nh-menu__sheet::before {
  content: '';
  position: absolute;
  right: -30vmax;
  bottom: -30vmax;
  width: 80vmax;
  height: 80vmax;
  border-radius: 50%;
  background: repeating-radial-gradient(circle, transparent 0 46px, var(--nh-divider) 46px 47px);
  pointer-events: none;
  z-index: -1;
}
.nh-menu.is-open .nh-menu__scrim { opacity: 1; }
.nh-menu.is-open .nh-menu__sheet { opacity: 1; transform: none; }
.nh-menu__head { display: flex; align-items: center; justify-content: space-between; min-height: var(--nh-nav-h); }
.nh-menu__brand .nh-lockup { font-size: 1.375rem; }
.nh-menu__close {
  display: inline-grid;
  place-items: center;
  width: var(--nh-tap);
  height: var(--nh-tap);
  padding: 0;
  border: 1px solid var(--nh-border);
  border-radius: var(--nh-radius-round);
  background: transparent;
  color: var(--nh-text);
}
.nh-menu__close:focus-visible { border-radius: var(--nh-radius-round); }
.nh-menu__links ol { margin: 0; padding: 0; list-style: none; }
.nh-menu__links li {
  border-bottom: 1px solid var(--nh-divider);
  opacity: 0;
  transform: translateY(calc(16px * var(--nh-move)));
  transition: opacity var(--nh-dur-slower) var(--nh-ease-out), transform var(--nh-dur-slower) var(--nh-ease-out);
  transition-delay: calc(80ms + var(--i) * 60ms);
}
.nh-menu.is-open .nh-menu__links li { opacity: 1; transform: none; }
.nh-menu__links a {
  display: flex;
  align-items: center;
  gap: var(--nh-space-4);
  min-height: 72px;
  color: var(--nh-heading);
  text-decoration: none;
  font-family: var(--nh-font-display);
  font-size: clamp(1.75rem, 7vw, 2.5rem);
  font-weight: var(--nh-weight-regular);
  letter-spacing: var(--nh-tracking-heading);
}
.nh-menu__links a[aria-current] .nh-menu__label { color: var(--nh-accent); }
.nh-menu__num { font-size: var(--nh-fs-xs); letter-spacing: 0.12em; color: var(--nh-text-subtle); font-variant-numeric: tabular-nums; width: 2ch; }
.nh-menu__label { flex: 1; }
.nh-menu__arrow { color: var(--nh-text-subtle); transition: transform var(--nh-dur-base) var(--nh-ease-out), color var(--nh-dur-fast); }
.nh-menu__links a:hover .nh-menu__arrow { transform: translateX(calc(4px * var(--nh-move))); color: var(--nh-accent); }
.nh-menu__tag {
  margin-top: auto;
  font-family: var(--nh-font-display);
  font-size: var(--nh-fs-sm);
  letter-spacing: 0.24em;
  color: var(--nh-text-muted);
  text-align: center;
}
.nh-menu__doors { display: grid; gap: var(--nh-space-3); }
.nh-menu__foot { display: flex; align-items: center; justify-content: space-between; gap: var(--nh-space-4); }

html.nh-menu-open, html.nh-menu-open body { overflow: hidden; }

@media (min-width: 1024px) {
  .nh-menu { display: none !important; }
}