/* Lazy Haven — nav. Fixed bar, transparent over the hero, blackwater when scrolled. */

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  color: var(--c-text-on-dark);
  background: transparent;
  border-bottom: 1px solid transparent;
  /* Navigation is chrome, not copy — no text selection, no tap flash. */
  -webkit-user-select: none;
  user-select: none;
  transition:
    background var(--dur) var(--ease-out),
    border-color var(--dur) var(--ease-out);
}

.nav--scrolled,
.nav--open {
  background: color-mix(in srgb, var(--c-blackwater) 78%, transparent);
  -webkit-backdrop-filter: blur(14px) saturate(1.1);
  backdrop-filter: blur(14px) saturate(1.1);
  border-bottom-color: var(--c-line-dark);
}

/* The mobile panel needs a solid ground — blur alone can't carry legibility. */
.nav--open {
  background: var(--c-blackwater);
}

.nav__inner {
  max-width: var(--container);
  margin-inline: auto;
  padding: var(--space-3) var(--gutter);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Wordmark ------------------------------------------------------------ */

.nav__wordmark {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 650;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--c-text-on-dark);
  text-decoration: none;
  margin-right: auto;
  white-space: nowrap;
}

.nav__wordmark:hover {
  color: var(--c-text-on-dark);
}

/* Links — mobile: collapsed panel below the bar ------------------------ */

.nav__links {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  flex-direction: column;
  background: var(--c-blackwater);
  border-bottom: 1px solid var(--c-line-dark);
  padding: var(--space-2) var(--gutter) var(--space-4);
}

.nav--open .nav__links {
  display: flex;
}

.nav__link {
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
  color: var(--c-text-on-dark-dim);
  text-decoration: none;
  padding: var(--space-2) 0;
  transition: color var(--dur-fast) var(--ease-out);
}

.nav__link:hover {
  color: var(--c-text-on-dark);
}

/* Book button — stays visible on mobile -------------------------------- */

.nav .nav__book {
  padding: 0.6em 1.35em;
}

/* Hamburger ------------------------------------------------------------ */

.nav__toggle {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  width: 44px;
  height: 44px;
  margin-right: calc(-1 * var(--space-2));
  background: transparent;
  border: 0;
  padding: 0;
}

.nav__toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 1px;
  background: var(--c-text-on-dark);
  transition: transform var(--dur-fast) var(--ease-out);
}

.nav--open .nav__toggle-bar:first-child {
  transform: translateY(4.5px) rotate(45deg);
}

.nav--open .nav__toggle-bar:last-child {
  transform: translateY(-4.5px) rotate(-45deg);
}

/* Small phones — keep the bar from crowding/overflowing ------------------ */

@media (max-width: 460px) {
  .nav__inner {
    gap: var(--space-2);
  }

  /* Flag + chevron are enough on the narrowest screens; drop the code. */
  .langswitch__code {
    display: none;
  }

  .nav .nav__book {
    padding: 0.55em 1em;
  }
}

/* Language in the mobile menu ------------------------------------------- */

/* On mobile the flag dropdown is hidden from the bar and language options
   live inside the hamburger menu instead. */
.nav .langswitch {
  display: none;
}

.nav__lang {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-top: var(--space-2);
  padding-top: var(--space-3);
  border-top: 1px solid var(--c-line-dark);
}

.nav__lang-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  padding: var(--space-2) 0;
  font-size: var(--text-sm);
  color: var(--c-text-on-dark-dim);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}

.nav__lang-link:hover {
  color: var(--c-text-on-dark);
}

.nav__lang-link.is-active {
  color: var(--c-text-on-dark);
  font-weight: 600;
}

.nav__lang-flag {
  flex: 0 0 auto;
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 50%;
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.18);
}

.nav__lang-flag svg {
  display: block;
  width: 100%;
  height: 100%;
}

@media (prefers-reduced-motion: reduce) {
  .nav__lang-link {
    transition: none;
  }
}

/* Desktop --------------------------------------------------------------- */

@media (min-width: 720px) {
  .nav__toggle {
    display: none;
  }

  /* Desktop shows the flag dropdown in the bar; hide the in-menu list. */
  .nav .langswitch {
    display: inline-flex;
  }

  .nav__lang {
    display: none;
  }

  .nav__links {
    display: flex;
    position: static;
    flex-direction: row;
    align-items: center;
    gap: var(--space-4);
    background: transparent;
    border-bottom: 0;
    padding: 0;
  }

  .nav__link {
    padding: var(--space-1) 0;
  }
}

@media (min-width: 1080px) {
  .nav__links {
    gap: var(--space-5);
  }
}