/* ═══════════════════════════════════════════════════════════ */
/* Navigation Bar                                              */
/* ═══════════════════════════════════════════════════════════ */

.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 24px;
  height: 56px;
  display: flex; align-items: center; justify-content: space-between;
  transition: background .25s, border-color .25s, backdrop-filter .25s;
}
.nav.scrolled {
  background: rgba(10,10,10,.85);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 8px rgba(0,0,0,.3);
}

.nav-left, .nav-right {
  display: flex; align-items: center; gap: 4px;
}

.nav-brand {
  font-size: 1.1rem; font-weight: 800;
  color: var(--accent) !important;
  letter-spacing: -.02em;
  opacity: 1 !important;
  padding: 6px 10px 6px 0;
}

.nav-link {
  padding: 6px 12px;
  font-size: .85rem;
  font-weight: 500;
  color: var(--text-secondary) !important;
  border-radius: var(--radius-sm);
  transition: color .15s, background .15s;
  position: relative;
}
.nav-link:hover { color: var(--text-primary) !important; background: var(--bg-hover); }
.nav-link.active {
  color: var(--text-primary) !important;
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%; transform: translateX(-50%);
  width: 16px; height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

.nav-btn-primary {
  padding: 6px 16px;
  font-size: .82rem;
  font-weight: 600;
  background: var(--accent);
  color: #000 !important;
  border-radius: var(--radius-sm);
  transition: background .15s;
}
.nav-btn-primary:hover { background: #f0b65d; opacity: 1 !important; }

/* Avatar */
.nav-avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: .75rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: transform .15s, background .15s;
  margin-left: 4px;
}
.nav-avatar:hover { transform: scale(1.08); background: rgba(232,168,73,.2); }

/* Dropdown */
.user-dropdown {
  position: absolute;
  top: 100%; right: 0;
  margin-top: 8px;
  min-width: 180px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 4px;
  opacity: 0;
  transform: translateY(-4px) scale(.96);
  pointer-events: none;
  transition: opacity .2s var(--ease), transform .2s var(--ease);
}
.user-dropdown.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.dropdown-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 14px;
  font-size: .85rem;
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  background: none; border: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
  transition: background .15s;
  text-decoration: none;
}
.dropdown-item svg { width: 16px; height: 16px; color: var(--text-tertiary); flex-shrink: 0; }
.dropdown-item:hover { background: var(--bg-hover); }
.dropdown-item.danger { color: var(--red); }
.dropdown-item.danger svg { color: var(--red); }

.dropdown-sep {
  height: 1px;
  background: var(--border);
  margin: 4px 0;
}

@media (max-width: 640px) {
  .nav { padding: 0 12px; }
  .nav-link { padding: 6px 8px; font-size: .78rem; }
}