/* vrc.dj  Nav: navigation bar, scope links, user dropdown */
/* --- Navigation */
.site-nav {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  border-bottom: 1px solid var(--border);
  --bs-navbar-padding-y: .5rem;
  box-shadow: 0 0 64px #2a38414a;
}
.site-nav::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--nav-bg);
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  z-index: var(--z-bg);
}
.site-nav .navbar-brand img { height: 30px; }
.site-nav .navbar-brand:hover { opacity: .85; }

/* Nav links */
.site-nav .nav-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: .4rem .7rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: .875rem;
  font-weight: 500;
  letter-spacing: .01em;
  line-height: 1;
  transition: color .15s var(--ease), background .15s var(--ease);
  white-space: nowrap;
}
.site-nav .nav-link:hover  { color: var(--text); background: var(--link-hover-bg); }
.site-nav .nav-primary-links,
.site-nav .nav-primary-links .nav-item {
  align-items: center;
}
.site-nav .nav-primary-links .nav-item {
  display: flex;
}
.nav-link-kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  align-self: center;
  margin-left: 2px;
  padding: .05rem .35rem;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-elevated) 70%, transparent);
  color: var(--text-muted);
  font-size: .6rem;
  font-family: inherit;
  line-height: 1;
}
.site-nav .nav-link.active { color: var(--white); background: color-mix(in srgb, var(--accent) 12%, transparent); }
/* ── Scope cluster: 4-item switcher (Directory, Artists, Communities, Livesets) ── */
/* Scope color definitions */
.nav-scope-cluster-shell { --scope-color-all: color-mix(in srgb, var(--accent) 60%, #45b7d1); --scope-color-artist: var(--accent); --scope-color-community: #38bdf8; --scope-color-liveset: #f59e0b; }
.nav-scope-cluster-shell[data-active-scope="all"]       { --nav-scope-active: var(--scope-color-all); }
.nav-scope-cluster-shell[data-active-scope="artist"]    { --nav-scope-active: var(--scope-color-artist); }
.nav-scope-cluster-shell[data-active-scope="community"] { --nav-scope-active: var(--scope-color-community); }
.nav-scope-cluster-shell[data-active-scope="liveset"]   { --nav-scope-active: var(--scope-color-liveset); }

.nav-scope-cluster {
  display: flex;
  align-items: center;
}
.nav-scope-cluster-shell {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: .18rem;
  padding: .18rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--nav-scope-active, var(--accent)) 22%, var(--border));
  background: color-mix(in srgb, var(--bg-elevated) 82%, transparent);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.08);
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.nav-scope-cluster-shell::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--nav-scope-active, var(--accent)) 16%, transparent);
  opacity: .65;
  pointer-events: none;
  transition: opacity .2s var(--ease), border-color .2s var(--ease);
}
.nav-scope-cluster--listing .nav-scope-cluster-shell::before {
  opacity: 1;
  border-color: color-mix(in srgb, var(--nav-scope-active, var(--accent)) 28%, transparent);
}
.nav-scope-link {
  position: relative;
  z-index: 1;
  border-radius: 999px !important;
}
.nav-scope-cluster .nav-link {
  padding: .42rem .82rem;
  transition: background .18s var(--ease), color .18s var(--ease), padding .18s var(--ease);
}
/* Icon-only: compact square-ish pill, hide label + kbd */
.nav-scope-link--icon-only .nav-scope-label,
.nav-scope-link--icon-only .nav-link-kbd {
  display: none !important;
}
/* Scope kbds: hidden on mobile, visible on md+ only when expanded */
.nav-scope-kbd { display: none; }
@media (min-width: 768px) {
  .nav-scope-link--expanded .nav-scope-kbd { display: inline; }
}
.nav-scope-link--icon-only .nav-link,
.nav-scope-link--icon-only.nav-link {
  padding: .42rem .56rem;
}
/* Expanded: normal pill with label */
.nav-scope-link--expanded .nav-link,
.nav-scope-link--expanded.nav-link {
  padding: .42rem .82rem;
}
.nav-scope-cluster .nav-link.active {
  background: color-mix(in srgb, var(--nav-scope-active, var(--accent)) 28%, transparent);
  box-shadow: 0 10px 24px color-mix(in srgb, var(--nav-scope-active, var(--accent)) 18%, transparent);
}
.nav-scope-cluster .nav-link.nav-scope-link--parent-active {
  background: color-mix(in srgb, var(--nav-scope-active, var(--accent)) 10%, transparent);
  color: color-mix(in srgb, var(--nav-scope-active, var(--accent)) 50%, var(--text));
}
.nav-scope-cluster .nav-link.is-current:not(.active) {
  color: var(--text);
}

/* ── Instant CSS tooltip for icon-only scope links ── */
.nav-scope-link--icon-only {
  position: relative;
}
.nav-scope-link--icon-only::after {
  content: attr(data-scope-tooltip);
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  padding: .22rem .52rem;
  border-radius: var(--radius-sm, 6px);
  background: color-mix(in srgb, var(--bg-card) 85%, transparent);
  backdrop-filter: blur(12px) saturate(1.3);
  -webkit-backdrop-filter: blur(12px) saturate(1.3);
  color: var(--text);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .02em;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  z-index: var(--z-sticky);
  border: 1px solid color-mix(in srgb, var(--border) 60%, transparent);
  box-shadow: 0 4px 12px rgba(0,0,0,.18);
}
.nav-scope-link--icon-only:hover::after {
  opacity: 1;
}

/* Large desktop: expand all scope links (no icon-only collapse) */
@media (min-width: 992px) {
  .nav-scope-link--icon-only .nav-scope-label { display: inline !important; }
  .nav-scope-link--icon-only .nav-scope-kbd { display: inline !important; }
  .nav-scope-link--icon-only .nav-link,
  .nav-scope-link--icon-only.nav-link { padding: .42rem .82rem; }
  .nav-scope-link--icon-only::after { display: none !important; }
}

/* Custom hamburger toggler */
.site-nav .navbar-toggler {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 7px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: none;
}
.site-nav .navbar-toggler:focus { box-shadow: none; }
.site-nav .navbar-toggler span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 1px;
  transition: all .25s;
}
.site-nav .navbar-toggler:not(.collapsed) span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-nav .navbar-toggler:not(.collapsed) span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.site-nav .navbar-toggler:not(.collapsed) span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Right-side controls */
.nav-theme-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  font-size: .85rem;
  cursor: pointer;
  transition: all .18s var(--ease);
}
.nav-theme-btn:hover { color: var(--text); border-color: var(--border-bright); background: var(--link-hover-bg); }
.nav-login-btn {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .4rem .85rem;
  background: rgba(124,58,237,.12);
  border: 1px solid rgba(124,58,237,.28);
  border-radius: var(--radius-sm);
  color: var(--accent-bright);
  font-size: .825rem;
  font-weight: 500;
  transition: all .18s var(--ease);
  white-space: nowrap;
}
.nav-login-btn:hover { background: rgba(124,58,237,.28); border-color: rgba(124,58,237,.5); color: var(--white); }

/* User pill & dropdown */
.nav-user-wrap      { position: relative; }
.nav-user-btn {
  position: relative;
  display: flex;
  align-items: center;
  gap: .45rem;
  padding: 4px 10px 4px 4px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 32px;
  color: var(--text);
  font-size: .825rem;
  font-weight: 500;
  cursor: pointer;
  transition: all .18s var(--ease);
  text-decoration: none;
}
.nav-user-btn:hover   { background: var(--bg-card-hover); border-color: var(--border-bright); color: var(--white); }
.nav-user-avatar      { width: 26px; height: 26px; border-radius: 50%; object-fit: cover; background: var(--bg-elevated); }
.nav-unread-dot,
.nav-link-alert {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ef4444;
  box-shadow: 0 0 10px rgba(239,68,68,.5);
  flex: 0 0 auto;
}
.nav-unread-dot {
  position: absolute;
  top: 5px;
  right: 7px;
  border: 2px solid var(--bg-card);
}
.nav-link-alert {
  margin-left: auto;
}
.nav-dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  min-width: 200px;
  background: color-mix(in srgb, var(--accent-neutralized) 12%, rgba(8,11,20,.72));
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border: 1px solid rgba(255,255,255,.11);
  border-radius: var(--radius);
  padding: 6px;
  box-shadow: 0 8px 32px rgba(0,0,0,.35), inset 0 1px 0 rgba(255,255,255,.1);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-4px) scale(.98);
  transform-origin: top right;
  transition: opacity .15s var(--ease), transform .15s var(--ease);
  z-index: var(--z-sticky);
}
.nav-user-wrap::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  top: 100%;
  height: 12px;
}
.nav-user-wrap:hover .nav-dropdown,
.nav-user-wrap:focus-within .nav-dropdown { opacity: 1; pointer-events: auto; transform: translateY(0) scale(1); }
.nav-dropdown a {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .45rem .7rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: .825rem;
  transition: all .12s;
}
.nav-dropdown-divider {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .5rem .7rem .2rem;
  margin-top: .3rem;
  color: var(--text-muted);
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  pointer-events: none;
  user-select: none;
}
.nav-dropdown-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: color-mix(in srgb, var(--border) 78%, transparent);
}
.nav-dropdown-divider:empty {
  padding: .35rem .25rem .15rem;
  margin-top: .2rem;
}
.nav-dropdown a:hover { background: var(--bg-card-hover); color: var(--text); }
.nav-dropdown-kbd {
  margin-left: auto;
  padding: .05rem .35rem;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-elevated) 70%, transparent);
  color: var(--text-muted);
  font-size: .6rem;
  font-family: inherit;
  line-height: 1.4;
}

/* Mobile dropdown positioning */
@media (max-width: 767.98px) {
  .site-nav .navbar-collapse {
    padding-top: .75rem;
  }
  .site-nav .navbar-collapse.collapsing,
  .site-nav .navbar-collapse.show {
    width: 100%;
  }
  .site-nav .nav-primary-links {
    display: flex;
    flex-direction: column;
    width: 100%;
    margin-left: auto;
    margin-right: 0 !important;
    align-items: stretch;
    gap: .5rem !important;
  }
  .site-nav .nav-primary-links .nav-item {
    display: flex;
    justify-content: stretch;
    width: 100%;
    min-width: 0;
  }
  .site-nav .nav-primary-links .nav-link {
    width: 100%;
    min-height: 44px;
    padding: .58rem .8rem;
    font-size: .96rem;
    font-weight: 600;
    justify-content: center;
    text-align: center;
  }
  .site-nav .nav-scope-cluster {
    width: 100%;
    min-width: 0;
    justify-content: stretch;
  }
  .site-nav .nav-scope-cluster-shell {
    width: 100%;
    max-width: none;
    display: flex;
    flex-wrap: wrap;
    border-radius: 1rem;
    gap: .18rem;
  }
  .site-nav .nav-scope-cluster-shell::before {
    border-radius: 1rem;
  }
  /* Directory: always full width top row with label */
  .site-nav .nav-scope-cluster-shell > .nav-scope-link:first-child {
    flex: 0 0 100%;
  }
  .site-nav .nav-scope-cluster-shell > .nav-scope-link:first-child .nav-scope-label {
    display: inline !important;
  }
  /* Bottom 3: share second row, expanded one grows */
  .site-nav .nav-scope-cluster-shell > .nav-scope-link:not(:first-child) {
    flex: 1 1 0;
    min-width: 0;
  }
  .site-nav .nav-scope-cluster-shell > .nav-scope-link--expanded:not(:first-child) {
    flex: 2 1 0;
  }
  /* On mobile: hide desktop tooltip */
  .site-nav .nav-scope-link--icon-only::after { display: none !important; }
  .site-nav .nav-scope-link--icon-only .nav-link,
  .site-nav .nav-scope-link--icon-only { padding: .42rem .82rem; }
  .site-nav .nav-scope-cluster .nav-link {
    justify-content: center;
    text-align: center;
    padding: .46rem .7rem;
    font-size: .88rem;
    border-radius: .7rem;
  }
  .site-nav .nav-scope-cluster .nav-link.active {
    background: color-mix(in srgb, var(--nav-scope-active, var(--accent)) 28%, transparent);
    box-shadow: 0 6px 16px color-mix(in srgb, var(--nav-scope-active, var(--accent)) 14%, transparent);
  }
  .site-nav .nav-scope-cluster .nav-link.nav-scope-link--parent-active {
    background: color-mix(in srgb, var(--nav-scope-active, var(--accent)) 10%, transparent);
    color: color-mix(in srgb, var(--nav-scope-active, var(--accent)) 50%, var(--text));
  }
  .site-nav .nav-primary-links > .nav-item:not(.nav-scope-cluster) .nav-link {
    padding-left: .75rem;
    padding-right: .75rem;
  }
  /* Mobile top bar: theme + user + login */
  .nav-mobile-actions {
    flex-shrink: 0;
  }
  .nav-theme-btn--mobile {
    width: 32px;
    height: 32px;
    font-size: .88rem;
  }
  .nav-user-wrap--mobile .nav-user-btn {
    height: 32px;
  }
  .nav-user-wrap--mobile .nav-user-btn .bi-chevron-down { display: none; }
  .nav-user-wrap--mobile .nav-dropdown {
    right: 0;
    left: auto;
    transform-origin: top right;
    visibility: hidden;
    display: none;
  }
  .nav-user-wrap--mobile.nav-open-dd .nav-dropdown {
    opacity: 1; pointer-events: auto; transform: translateY(0) scale(1);
    visibility: visible;
    display: block;
  }
  .nav-login-btn--mobile {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    border-radius: 50%;
    font-size: .92rem;
    gap: 0;
  }
  .site-nav .nav-actions {
    width: 100%;
    margin-top: .75rem;
    justify-content: flex-end;
  }
  .site-nav .nav-theme-btn {
    width: 36px;
    height: 36px;
    font-size: .95rem;
  }
  .site-nav .nav-user-btn {
    font-size: .9rem;
    padding: 5px 12px 5px 5px;
  }
  .site-nav .nav-user-avatar {
    width: 28px;
    height: 28px;
  }
  .nav-user-wrap.nav-open-dd .nav-dropdown { opacity: 1; pointer-events: auto; transform: translateY(0) scale(1); }
  .nav-dropdown {
    right: 0;
    left: auto;
    transform-origin: top right;
    visibility: hidden;
    display: none;
  }
  .nav-user-wrap.nav-open-dd .nav-dropdown {
    visibility: visible;
    display: block;
  }
}

/* Nav auto-hide on profile pages (desktop only) */
@media (min-width: 768px) {
  .page-profile .site-nav {
    transition: opacity .35s ease, transform .35s ease;
  }
  .page-profile .site-nav.nav-hidden {
    opacity: 0;
    transform: translateY(-100%);
    pointer-events: none;
  }
}