/* ============================================
   FenceX - Collapsible Navigation System
   TickTick-inspired professional nav
   ============================================ */

/* Nav Container */
.fx-nav-container {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(4, 8, 23, 0.92);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  border-bottom: 1px solid var(--color-border, rgba(255, 255, 255, 0.12));
  transition: all 0.3s ease;
}

:root[data-theme='light'] .fx-nav-container {
  background: rgba(246, 248, 252, 0.95);
}

/* Header Layout */
.fx-header {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 24px;
}

/* Brand Logo */
.fx-brand {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--color-text-primary, #EAF2FF);
  text-decoration: none;
  white-space: nowrap;
  transition: opacity 0.2s ease;
}

.fx-brand:hover {
  opacity: 0.8;
}

/* Nav Toggle Button */
.fx-nav-toggle {
  display: none;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--color-border, rgba(255, 255, 255, 0.12));
  background: transparent;
  color: var(--color-text-primary, #EAF2FF);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 1.2rem;
}

.fx-nav-toggle:hover {
  background: var(--color-surface, rgba(255, 255, 255, 0.06));
}

/* Main Navigation */
.fx-main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
}

.fx-nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.fx-nav-item {
  position: relative;
}

/* Nav Icon — inline SVG wrapper */
.fx-nav-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: currentColor;
  opacity: 0.65;
  transition: opacity 0.2s ease;
}

.fx-nav-icon svg {
  width: 100%;
  height: 100%;
}

.fx-nav-item a:hover .fx-nav-icon {
  opacity: 1;
}

.fx-nav-item a.active .fx-nav-icon {
  opacity: 1;
  color: var(--color-accent, #5a8dff);
}

/* Nav Label */
.fx-nav-label {
  transition: opacity 0.2s ease, width 0.2s ease;
}

.fx-nav-item a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--color-text-muted, rgba(234, 242, 255, 0.7));
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 500;
  font-size: 0.875rem;
  line-height: 1.4;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.fx-nav-item a:hover {
  background: var(--color-surface, rgba(255, 255, 255, 0.06));
  color: var(--color-text-primary, #EAF2FF);
}

.fx-nav-item a.active {
  background: var(--color-accent-soft, rgba(90, 141, 255, 0.18));
  color: var(--color-accent, #5a8dff);
}

.fx-nav-item a.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--color-accent, #5a8dff);
  border-radius: 2px 2px 0 0;
}

/* Right Side Actions */
.fx-header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.fx-header-actions #authSection {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* User Menu */
.fx-user-menu {
  position: relative;
}

.fx-user-menu-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px 6px 6px;
  border-radius: 999px;
  border: 1px solid var(--color-border, rgba(255, 255, 255, 0.12));
  background: transparent;
  color: var(--color-text-primary, #EAF2FF);
  cursor: pointer;
  transition: all 0.2s ease;
}

.fx-user-menu-toggle:hover {
  background: var(--color-surface, rgba(255, 255, 255, 0.06));
  border-color: var(--color-accent, #5a8dff);
}

.fx-user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-accent, #3b82f6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.75rem;
  color: #fff;
}

.fx-user-name {
  font-size: 0.9rem;
  font-weight: 500;
}

/* Settings Icon */
.fx-settings-link {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--color-border, rgba(255, 255, 255, 0.12));
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: var(--color-text-primary, #EAF2FF);
  transition: all 0.2s ease;
  font-size: 1.1rem;
}

.fx-settings-link:hover {
  background: var(--color-accent-soft, rgba(90, 141, 255, 0.18));
  border-color: var(--color-accent, #5a8dff);
  transform: translateY(-1px) scale(1.04);
  box-shadow: 0 10px 18px rgba(26, 86, 255, 0.25);
}

/* Mobile Navigation */
@media (max-width: 960px) {
  .fx-header {
    padding: 0 16px;
    height: 56px;
    gap: 12px;
  }

  .fx-brand {
    font-size: 1.15rem;
    letter-spacing: 0.12em;
    flex: 1;
    min-width: 0;
  }

  .fx-nav-toggle {
    display: flex;
  }

  .fx-main-nav {
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(4, 8, 23, 0.98);
    backdrop-filter: blur(32px);
    -webkit-backdrop-filter: blur(32px);
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    gap: 12px;
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 99;
    overflow-y: auto;
  }

  :root[data-theme='light'] .fx-main-nav {
    background: rgba(255, 255, 255, 0.98);
  }

  .fx-main-nav.open {
    transform: translateX(0);
  }

  .fx-nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }

  .fx-nav-item a {
    padding: 12px 14px;
    font-size: 0.95rem;
  }

  .fx-nav-item a.active::after {
    display: none;
  }

  .fx-nav-item a.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 24px;
    background: var(--color-accent, #5a8dff);
    border-radius: 0 2px 2px 0;
  }

  .fx-header-actions {
    gap: 8px;
    flex-shrink: 0;
  }

  .fx-header-actions .fx-settings-link,
  .fx-header-actions .fx-btn,
  .fx-header-actions .fx-user-menu-toggle {
    height: 34px;
  }

  .fx-header-actions .fx-settings-link {
    width: 34px;
  }

  .fx-header-actions .fx-btn {
    padding: 0 12px;
    font-size: 0.85rem;
    line-height: 1;
  }

  .fx-header-actions .fx-user-menu-toggle {
    padding: 4px 10px 4px 4px;
  }

  .fx-header-actions .fx-user-avatar {
    width: 24px;
    height: 24px;
    font-size: 0.7rem;
  }

  .fx-header-actions .fx-user-name {
    max-width: 90px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
}

/* Mobile Overlay */
.fx-nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 98;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.fx-nav-overlay.active {
  display: block;
  opacity: 1;
}

@media (min-width: 961px) {
  .fx-nav-overlay {
    display: none !important;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  .fx-nav-container,
  .fx-main-nav,
  .fx-nav-item a,
  .fx-settings-link {
    transition: none;
  }
}

/* ============================================
   Desktop Collapse Toggle & Compact Mode
   ============================================ */

/* Collapse Toggle Button */
.fx-collapse-toggle {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  border: 1px solid var(--color-border, rgba(255, 255, 255, 0.12));
  background: transparent;
  color: var(--color-text-muted, rgba(234, 242, 255, 0.7));
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.7rem;
  position: relative;
}

.fx-collapse-toggle:hover {
  background: var(--color-surface, rgba(255, 255, 255, 0.06));
  color: var(--color-text-primary, #EAF2FF);
  border-color: var(--color-accent, #5a8dff);
}

/* Hide collapse toggle on mobile */
@media (max-width: 960px) {
  .fx-collapse-toggle {
    display: none;
  }
}

/* Tooltip Styles (for collapsed mode) */
[data-tooltip] {
  position: relative;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: var(--color-bg-elevated, rgba(30, 35, 50, 0.95));
  color: var(--color-text-primary, #EAF2FF);
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  pointer-events: none;
  z-index: 200;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  border: 1px solid var(--color-border, rgba(255, 255, 255, 0.1));
}

:root[data-theme='light'] [data-tooltip]::after {
  background: rgba(30, 35, 50, 0.95);
  color: #fff;
}

/* Show tooltip on hover for collapse toggle and settings always */
.fx-collapse-toggle:hover::after,
.fx-settings-link:hover::after {
  opacity: 1;
  visibility: visible;
}

/* ============================================
   Collapsed State (Desktop Only)
   ============================================ */
@media (min-width: 961px) {
  /* Collapsed nav container */
  .fx-nav-container.fx-collapsed .fx-header {
    gap: 12px;
  }

  /* Collapsed brand - keep same text, just smaller */
  .fx-nav-container.fx-collapsed .fx-brand {
    font-size: 1.1rem;
    letter-spacing: 0.1em;
  }

  /* Collapsed nav list */
  .fx-nav-container.fx-collapsed .fx-nav-list {
    gap: 2px;
  }

  /* Collapsed nav items - icon only */
  .fx-nav-container.fx-collapsed .fx-nav-item a {
    padding: 8px 10px;
  }

  .fx-nav-container.fx-collapsed .fx-nav-label {
    display: none;
  }

  /* Show tooltips in collapsed mode */
  .fx-nav-container.fx-collapsed .fx-nav-item a:hover::after {
    opacity: 1;
    visibility: visible;
  }

  /* Collapsed active indicator */
  .fx-nav-container.fx-collapsed .fx-nav-item a.active::after {
    left: 10px;
    right: 10px;
  }

  /* Hide user name in collapsed mode */
  .fx-nav-container.fx-collapsed .fx-user-name {
    display: none;
  }

  .fx-nav-container.fx-collapsed .fx-user-menu-toggle {
    padding: 6px;
  }
}