/* Phones: drawer sliding in from the right. Wide screens: the same links inline in the header. */
.nav-toggle,
.nav-close {
  display: inline-flex;
  padding: 0.5rem;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  background: var(--glass-bg);
  box-shadow: var(--shadow-glass);
  color: var(--text);
  cursor: pointer;
  transition: transform 0.3s var(--ease-ios);
}

.nav-toggle:active,
.nav-close:active {
  transform: scale(0.92);
}

.nav-icon {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}

.nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1;
  background: rgb(15 23 42 / 0.35);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 0.35s var(--ease-ios),
    visibility 0s linear 0.35s;
}

.nav-backdrop.is-open {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.35s var(--ease-ios);
}

.nav-drawer {
  position: fixed;
  inset: 0 0 0 auto;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: min(82vw, 320px);
  padding: calc(0.85rem + env(safe-area-inset-top)) 1.5rem
    calc(1.5rem + env(safe-area-inset-bottom));
  overflow-y: auto;
  border-left: 1px solid var(--glass-border);
  border-radius: var(--radius-3xl) 0 0 var(--radius-3xl);
  background: var(--glass-bg-strong);
  box-shadow: var(--shadow-float);
  -webkit-backdrop-filter: var(--glass-filter);
  backdrop-filter: var(--glass-filter);
  transform: translateX(100%);
  visibility: hidden;
  transition:
    transform 0.45s var(--ease-ios),
    visibility 0s linear 0.45s;
}

.nav-drawer.is-open {
  transform: none;
  visibility: visible;
  transition: transform 0.45s var(--ease-ios);
}

.nav-close {
  align-self: flex-end;
}

.nav-links {
  display: flex;
  flex-direction: column;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-links a:not(.btn) {
  display: block;
  color: var(--text-muted);
}

.nav-links a:not(.btn):hover {
  color: var(--text);
  text-decoration: none;
}

.nav-open {
  overflow: hidden;
}

@media (max-width: 767px) {
  .nav-links a:not(.btn) {
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--border);
    color: var(--text);
    font-size: 1.05rem;
  }

  .nav-links .btn {
    width: 100%;
    padding-block: 0.75rem;
  }

  .nav-links li:has(.btn) {
    margin-top: 0.6rem;
  }

  .nav-links li:not(:has(.btn)) + li:has(.btn) {
    margin-top: 1.5rem;
  }
}

@media (min-width: 768px) {
  .nav-toggle,
  .nav-close,
  .nav-backdrop {
    display: none;
  }

  .nav-drawer {
    position: static;
    display: block;
    width: auto;
    padding: 0;
    overflow: visible;
    border: 0;
    border-radius: 0;
    background: none;
    box-shadow: none;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    transform: none;
    visibility: visible;
    transition: none;
  }

  .nav-links {
    flex-direction: row;
    align-items: center;
    gap: 1.5rem;
  }

  .nav-links a:not(.btn) {
    padding: 0.4rem 0;
  }
}