/* ═══════════════════════════════════════════════════════════════
   navbar.css — University of Embu Christian Union  v4
   ═══════════════════════════════════════════════════════════════ */

:root {
  --nav-h:            66px;
  --nav-h-mob:        62px;
  --nav-bg:           #ffffff;
  --nav-border:       rgba(63,17,78,0.10);
  --nav-primary:      #3f114e;
  --nav-primary-dk:   #2d0c39;
  --nav-primary-lt:   #f5eef8;
  --nav-primary-mid:  rgba(63,17,78,0.08);
  --nav-muted:        #6b7280;
  --nav-text:         #1a1a1a;
  --nav-radius:       0.45rem;
  --nav-shadow-rest:  0 1px 0 rgba(63,17,78,0.08), 0 2px 8px rgba(0,0,0,0.05);
  --nav-shadow-scroll:0 2px 0 rgba(63,17,78,0.10), 0 6px 24px rgba(63,17,78,0.12);
  --nav-t:            200ms cubic-bezier(0.4,0,0.2,1);
  --nav-z:            1000;
  --nav-drawer-z:     1001;
  --nav-back-z:       1000;
}

.navbar *, .navbar *::before, .navbar *::after { box-sizing: border-box; }

/* ── SHELL ── */
.navbar {
  position: sticky;
  top: 0;
  z-index: var(--nav-z);
  background: var(--nav-bg);
  border-bottom: 1px solid var(--nav-border);
  box-shadow: var(--nav-shadow-rest);
  transition: box-shadow var(--nav-t), border-color var(--nav-t);
}
.navbar.scrolled {
  box-shadow: var(--nav-shadow-scroll);
  border-bottom-color: rgba(63,17,78,0.16);
}
.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
  height: var(--nav-h);
  display: flex;
  align-items: center;
}

/* ══════════════════════════════════════════════════════════════
   BRAND
   ══════════════════════════════════════════════════════════════ */
.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  flex-shrink: 0;
  margin-right: auto;
  outline: none;
  padding: 0.25rem 0;
}
.nav-brand:focus-visible {
  outline: 2px solid var(--nav-primary);
  outline-offset: 4px;
  border-radius: var(--nav-radius);
}
.nav-logo-wrap { position: relative; width: 42px; height: 42px; flex-shrink: 0; }
.nav-logo {
  width: 42px; height: 42px;
  border-radius: 50%;
  object-fit: contain;
  background: #fff;
  border: 2px solid rgba(63,17,78,0.25);
  padding: 2px;
  display: block;
  z-index: 1;
  transition: transform var(--nav-t), box-shadow var(--nav-t), border-color var(--nav-t);
  box-shadow: 0 1px 4px rgba(63,17,78,0.12);
}
.nav-brand:hover .nav-logo {
  transform: scale(1.06);
  border-color: var(--nav-primary);
  box-shadow: 0 2px 12px rgba(63,17,78,0.22);
}
.nav-brand-text { display: flex; flex-direction: column; line-height: 1.15; }

/* Wordmark reacts on hover too, so the whole brand block (logo +
   text) reads as one clickable unit instead of just the logo. */
.nav-brand-full,
.nav-brand-short {
  transition: color var(--nav-t);
}
.nav-brand-tagline {
  transition: opacity var(--nav-t);
}
.nav-brand:hover .nav-brand-full,
.nav-brand:hover .nav-brand-short {
  color: var(--nav-primary-dk);
}
.nav-brand:hover .nav-brand-tagline {
  opacity: 0.8;
}

/* Desktop: full name */
.nav-brand-full {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--nav-primary);
  letter-spacing: -0.01em;
  white-space: nowrap;
}
/* Mobile short name — hidden on desktop */
.nav-brand-short { display: none; }

.nav-brand-tagline {
  font-size: 0.575rem;
  font-weight: 600;
  color: var(--nav-primary);
  opacity: 0.55;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* ══════════════════════════════════════════════════════════════
   DESKTOP NAV LINKS
   ══════════════════════════════════════════════════════════════ */
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.1rem;
  margin-right: 1.25rem;
}
.nav-link {
  position: relative;
  padding: 0.5rem 0.875rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--nav-muted);
  text-decoration: none;
  border-radius: var(--nav-radius);
  white-space: nowrap;
  transition: color var(--nav-t), background var(--nav-t);
  letter-spacing: 0.01em;
}
.nav-link::after {
  content: "";
  position: absolute;
  bottom: 5px;
  left: 0.875rem;
  right: 0.875rem;
  height: 2px;
  background: var(--nav-primary);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--nav-t);
}
.nav-link:hover { color: var(--nav-primary); background: var(--nav-primary-mid); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active { color: var(--nav-primary-dk); font-weight: 700; background: var(--nav-primary-lt); }
.nav-link.active::after { transform: scaleX(1); background: var(--nav-primary); }
.nav-link:focus-visible { outline: 2px solid var(--nav-primary); outline-offset: 2px; }

/* ══════════════════════════════════════════════════════════════
   RIGHT CONTROLS
   ══════════════════════════════════════════════════════════════ */
.nav-controls { display: flex; align-items: center; gap: 0.5rem; flex-shrink: 0; }

/* ── Auth buttons ── */
.nav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.48rem 1.15rem;
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: 9999px;
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  font-family: inherit;
  transition: all var(--nav-t);
  letter-spacing: 0.01em;
}
.nav-btn--ghost { color: var(--nav-primary); border-color: rgba(63,17,78,0.30); background: transparent; }
.nav-btn--ghost:hover { background: var(--nav-primary); border-color: var(--nav-primary); color: #fff; }
.nav-btn--solid { color: #fff; background: var(--nav-primary); border-color: var(--nav-primary); }
.nav-btn--solid:hover { background: var(--nav-primary-dk); border-color: var(--nav-primary-dk); transform: translateY(-1px); box-shadow: 0 4px 14px rgba(63,17,78,0.35); }
.nav-btn--full { width: 100%; justify-content: center; }
.nav-btn:focus-visible { outline: 2px solid var(--nav-primary); outline-offset: 2px; }

/* ══════════════════════════════════════════════════════════════
   NOTIFICATION BELL
   ══════════════════════════════════════════════════════════════ */
.nav-notif {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: none;
  background: transparent;
  border-radius: 50%;
  cursor: pointer;
  color: var(--nav-muted);
  transition: color var(--nav-t), background var(--nav-t);
  flex-shrink: 0;
  padding: 0;
}
.nav-notif:hover { background: var(--nav-primary-mid); color: var(--nav-primary); }
.nav-notif svg { width: 20px; height: 20px; }
.nav-notif-badge {
  position: absolute;
  top: 4px;
  right: 4px;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  border-radius: 9999px;
  background: #e53e3e;
  color: #fff;
  font-size: 0.6rem;
  font-weight: 800;
  line-height: 16px;
  text-align: center;
  border: 2px solid #fff;
  letter-spacing: 0;
  pointer-events: none;
  /* subtle pulse to draw attention */
  animation: notif-pulse 2.4s ease-in-out infinite;
}
@keyframes notif-pulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(229,62,62,0.5); }
  50%      { box-shadow: 0 0 0 4px rgba(229,62,62,0); }
}
.nav-notif:focus-visible { outline: 2px solid var(--nav-primary); outline-offset: 2px; }

/* ══════════════════════════════════════════════════════════════
   USER CHIP + DROPDOWN
   ══════════════════════════════════════════════════════════════ */
.nav-user { position: relative; }

.nav-user-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.28rem 0.75rem 0.28rem 0.28rem;
  background: transparent;
  border: 1.5px solid rgba(63,17,78,0.20);
  border-radius: 9999px;
  cursor: pointer;
  font-family: inherit;
  color: var(--nav-primary);
  transition: all var(--nav-t);
}
.nav-user-btn:hover { background: var(--nav-primary-mid); border-color: rgba(63,17,78,0.40); }
.nav-user-btn[aria-expanded="true"] {
  background: var(--nav-primary-mid);
  border-color: var(--nav-primary);
  box-shadow: 0 0 0 3px rgba(63,17,78,0.10);
}
.nav-user-btn[aria-expanded="true"] .nav-chevron { transform: rotate(180deg); }
.nav-user-btn:focus-visible { outline: 2px solid var(--nav-primary); outline-offset: 2px; }

.nav-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--nav-primary);
  color: #fff;
  font-size: 0.62rem;
  font-weight: 800;
  flex-shrink: 0;
  user-select: none;
  letter-spacing: 0.03em;
}
.nav-avatar--md { width: 38px; height: 38px; font-size: 0.78rem; }
.nav-avatar--lg { width: 44px; height: 44px; font-size: 0.875rem; }

.nav-username {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--nav-primary);
  max-width: 115px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.nav-chevron {
  width: 14px; height: 14px;
  color: var(--nav-muted);
  flex-shrink: 0;
  transition: transform var(--nav-t);
}

/* ── Dropdown panel ── */
.nav-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 210px;
  background: #fff;
  border: 1px solid rgba(63,17,78,0.12);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(63,17,78,0.16), 0 2px 8px rgba(0,0,0,0.06);
  /* overflow: visible (not hidden) so the caret below can poke out
     above the panel. Corner-rounding on hover states is handled by
     the border-radius rules on the first/last dropdown items below
     instead of relying on overflow clipping. */
  overflow: visible;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px) scale(0.97);
  transform-origin: top right;
  transition: opacity 180ms ease, visibility 180ms ease, transform 180ms ease;
  z-index: 10;
}
.nav-dropdown.open { opacity: 1; visibility: visible; transform: translateY(0) scale(1); }

/* Little caret that visually ties the panel back to the button it
   came from. Positioned to line up roughly under the avatar/chevron. */
.nav-dropdown::before {
  content: "";
  position: absolute;
  top: -6px;
  right: 22px;
  width: 12px;
  height: 12px;
  background: #fff;
  border-left: 1px solid rgba(63,17,78,0.12);
  border-top: 1px solid rgba(63,17,78,0.12);
  border-radius: 2px 0 0 0;
  transform: rotate(45deg);
  z-index: -1;
}

/* Keep the panel's own rounded corners even with overflow: visible,
   by rounding the first/last row that actually touches the edge. */
.nav-dropdown-header { border-radius: 12px 12px 0 0; }
.nav-dropdown > form:last-child .nav-dropdown-item,
.nav-dropdown-item:last-child { border-radius: 0 0 12px 12px; }

/* Name row only */
.nav-dropdown-header {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.9rem 1rem 0.8rem;
}
.nav-dropdown-name {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--nav-primary);
  margin: 0;
  line-height: 1.2;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 130px;
}
.nav-dropdown-email { display: none; }

.nav-dropdown-divider { height: 1px; background: rgba(63,17,78,0.07); margin: 0; }

.nav-dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  width: 100%;
  padding: 0.7rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--nav-text);
  background: none;
  border: none;
  cursor: pointer;
  text-decoration: none;
  font-family: inherit;
  text-align: left;
  transition: background var(--nav-t), color var(--nav-t);
}
.nav-dropdown-item svg { width: 15px; height: 15px; flex-shrink: 0; color: var(--nav-muted); transition: color var(--nav-t); }
.nav-dropdown-item:hover { background: var(--nav-primary-mid); color: var(--nav-primary); }
.nav-dropdown-item:hover svg { color: var(--nav-primary); }
.nav-dropdown-item--danger { color: #b91c1c; }
.nav-dropdown-item--danger svg { color: #ef4444; }
.nav-dropdown-item--danger:hover { background: rgba(185,28,28,0.06); color: #b91c1c; }
.nav-dropdown-item--danger:hover svg { color: #b91c1c; }
.nav-dropdown-item:focus-visible { outline: 2px solid var(--nav-primary); outline-offset: -2px; }

/* ══════════════════════════════════════════════════════════════
   HAMBURGER
   ══════════════════════════════════════════════════════════════ */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  /* 44px meets the iOS/Android minimum recommended touch target
     (was 40px). */
  width: 44px; height: 44px;
  padding: 10px;
  background: transparent;
  border: 1.5px solid rgba(63,17,78,0.18);
  border-radius: var(--nav-radius);
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--nav-t), border-color var(--nav-t);
}
.nav-hamburger:hover { background: var(--nav-primary-mid); border-color: rgba(63,17,78,0.35); }
.nav-hamburger:focus-visible { outline: 2px solid var(--nav-primary); outline-offset: 2px; }
.nav-hamburger span {
  display: block; width: 20px; height: 2px;
  background: var(--nav-primary); border-radius: 2px;
  transition: transform 280ms ease, opacity 280ms ease, width 280ms ease;
  transform-origin: center;
}
.nav-hamburger.open { background: var(--nav-primary-mid); border-color: rgba(63,17,78,0.35); }
.nav-hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; width: 0; }
.nav-hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ══════════════════════════════════════════════════════════════
   MOBILE DRAWER — side panel, full UX redesign
   ══════════════════════════════════════════════════════════════ */
.nav-drawer {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: min(300px, 85vw);
  z-index: var(--nav-drawer-z);
  background: #fff;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-left: 1px solid rgba(63,17,78,0.10);
  box-shadow: -12px 0 48px rgba(63,17,78,0.20);
  opacity: 0;
  visibility: hidden;
  transform: translateX(100%);
  transition: opacity 280ms ease, visibility 280ms ease, transform 280ms cubic-bezier(0.4,0,0.2,1);
}
.nav-drawer.open { opacity: 1; visibility: visible; transform: translateX(0); }

/* ── Drawer Header bar ── */
.nav-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
  height: 56px;
  background: var(--nav-primary);
  flex-shrink: 0;
}
.nav-drawer-header-title {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.75);
}
/* Close button inside drawer */
.nav-drawer-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  border: none;
  background: rgba(255,255,255,0.12);
  border-radius: 8px;
  cursor: pointer;
  color: #fff;
  transition: background var(--nav-t);
  flex-shrink: 0;
}
.nav-drawer-close:hover { background: rgba(255,255,255,0.22); }
.nav-drawer-close svg { width: 18px; height: 18px; stroke: currentColor; stroke-width: 2.2; fill: none; }
.nav-drawer-close:focus-visible { outline: 2px solid rgba(255,255,255,0.6); outline-offset: 2px; }

/* ── Drawer scrollable body ── */
.nav-drawer-body {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  display: flex;
  flex-direction: column;
}

/* ── Identity strip ── */
.nav-drawer-identity {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.1rem 1.25rem;
  border-bottom: 1px solid rgba(63,17,78,0.08);
  flex-shrink: 0;
}
.nav-drawer-identity-text { flex: 1; min-width: 0; }
.nav-drawer-identity-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--nav-primary-dk);
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.nav-drawer-identity-role {
  font-size: 0.72rem;
  color: var(--nav-muted);
  margin: 2px 0 0;
}

/* ── Drawer section label ── */
.nav-drawer-section-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--nav-muted);
  padding: 1rem 1.25rem 0.35rem;
  margin: 0;
}

/* ── Drawer nav links ── */
.nav-drawer-links {
  display: flex;
  flex-direction: column;
  padding: 0.25rem 0.75rem;
  gap: 0.1rem;
}
.nav-drawer-link {
  display: flex;
  align-items: center;
  padding: 0.85rem 1rem;
  font-size: 1rem;
  font-weight: 600;
  color: #374151;
  text-decoration: none;
  border-radius: 0.5rem;
  transition: background var(--nav-t), color var(--nav-t), padding-left var(--nav-t);
  gap: 0.8rem;
  min-height: 48px; /* WCAG touch target */
}
.nav-drawer-link-icon {
  width: 18px; height: 18px;
  flex-shrink: 0;
  color: var(--nav-muted);
  transition: color var(--nav-t);
}
.nav-drawer-link:hover { background: var(--nav-primary-mid); color: var(--nav-primary); padding-left: 1.3rem; }
.nav-drawer-link:hover .nav-drawer-link-icon { color: var(--nav-primary); }
.nav-drawer-link.active { background: var(--nav-primary-lt); color: var(--nav-primary-dk); font-weight: 700; }
.nav-drawer-link.active .nav-drawer-link-icon { color: var(--nav-primary); }
.nav-drawer-link:focus-visible { outline: 2px solid var(--nav-primary); outline-offset: 2px; }

/* Unread-count badge for the Notifications row in the drawer —
   the inline equivalent of .nav-notif-badge on the desktop bell,
   so mobile has the same at-a-glance signal the desktop bell gives. */
.nav-drawer-link-badge {
  margin-left: auto;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  border-radius: 9999px;
  background: #e53e3e;
  color: #fff;
  font-size: 0.68rem;
  font-weight: 800;
  line-height: 20px;
  text-align: center;
  flex-shrink: 0;
}

.nav-drawer-divider { height: 1px; background: rgba(63,17,78,0.07); margin: 0.5rem 1.25rem; }

/* ── Drawer footer ── */
.nav-drawer-footer {
  padding: 1rem 1rem 2rem;
  border-top: 1px solid rgba(63,17,78,0.08);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex-shrink: 0;
}

/* Legacy compat */
.nav-drawer-user { display: none; }
.nav-drawer-uemail { display: none; }
.nav-drawer-uname { display: none; }

/* ── Backdrop ── */
.nav-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15,5,20,0.50);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  z-index: var(--nav-back-z);
  opacity: 0;
  transition: opacity 280ms ease;
}
.nav-backdrop.open { opacity: 1; }

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════════════ */
@media (max-width: 960px) {
  .nav-inner  { padding: 0 1.25rem; }
  .nav-link   { padding: 0.5rem 0.65rem; font-size: 0.865rem; }
  .nav-links  { margin-right: 0.75rem; }
}

@media (max-width: 768px) {
  .nav-inner {
    padding: 0 1rem;
    height: var(--nav-h-mob);
    justify-content: space-between;
  }
  .nav-links { display: none; }
  .nav-btn   { display: none; }
  .nav-user  { display: none; }
  .nav-notif { display: none; } /* shown inside drawer instead */
  .nav-hamburger { display: flex; }
  .nav-brand { margin-right: 0; }

  /* Switch to short name on mobile */
  .nav-brand-full    { display: none; }
  .nav-brand-short   { display: block; font-size: 0.95rem; font-weight: 800; color: var(--nav-primary); letter-spacing: -0.01em; white-space: nowrap; }
  .nav-brand-tagline { font-size: 0.55rem; }
  .nav-logo-wrap, .nav-logo { width: 38px; height: 38px; }
}

@media (max-width: 420px) {
  .nav-inner { padding: 0 0.875rem; }
  .nav-brand-short { font-size: 0.875rem; }
  .nav-logo-wrap, .nav-logo { width: 34px; height: 34px; }
}

@media (max-width: 360px) {
  .nav-inner { padding: 0 0.75rem; }
  .nav-brand { gap: 0.4rem; }
  .nav-brand-short { font-size: 0.82rem; }
  .nav-brand-tagline { display: none; }
  .nav-logo-wrap, .nav-logo { width: 32px; height: 32px; }
  /* Keep at least the 40px minimum tap target even at this
     narrowest breakpoint, rather than shrinking further. */
  .nav-hamburger { width: 40px; height: 40px; padding: 8px; }
}

@media (min-width: 769px) {
  .nav-drawer   { display: none !important; }
  .nav-backdrop { display: none !important; }
}

@media (prefers-reduced-motion: reduce) {
  .navbar, .nav-link, .nav-link::after,
  .nav-btn, .nav-user-btn, .nav-dropdown,
  .nav-hamburger, .nav-hamburger span,
  .nav-drawer, .nav-backdrop, .nav-logo,
  .nav-chevron, .nav-notif-badge { transition: none !important; animation: none !important; }
}
/* .nav-spinner has its own prefers-reduced-motion rule further up,
   since it needs a static "spinner-ish" look rather than none. *//* ══════════════════════════════════════════════════════════════
   ADD to navbar.css — anywhere near the other .nav-dropdown-item
   rules is fine. Gives the leadership dashboard entry a subtle
   highlight so it doesn't blend in with Profile/Settings, since
   it's functionally different (not everyone sees it).
   ══════════════════════════════════════════════════════════════ */

.nav-dropdown-item--highlight {
  background: var(--nav-primary-lt);
  color: var(--nav-primary-dk);
  font-weight: 700;
}
.nav-dropdown-item--highlight svg { color: var(--nav-primary); }
.nav-dropdown-item--highlight:hover {
  background: var(--nav-primary-mid);
  color: var(--nav-primary-dk);
}

/* ══════════════════════════════════════════════════════════════
   ACTION LOADING STATE — dropdown items / nav-btns that submit
   a form (Sign Out, etc). Swaps the icon for a spinner and dims
   the row so a click never feels like it did nothing.
   ══════════════════════════════════════════════════════════════ */
.nav-dropdown-item.is-loading,
.nav-drawer-link.is-loading,
.nav-btn.is-loading {
  pointer-events: none;
  cursor: default;
  opacity: 0.75;
}
.nav-dropdown-item.is-loading,
.nav-btn.is-loading {
  gap: 0.65rem;
}

.nav-spinner {
  width: 14px;
  height: 14px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  flex-shrink: 0;
  animation: nav-spin 650ms linear infinite;
}
.nav-btn .nav-spinner { width: 15px; height: 15px; }

@keyframes nav-spin {
  to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  .nav-spinner { animation: none; border-right-color: currentColor; opacity: 0.6; }
}