/*
 * Component: Navigation
 *
 * Left sidebar navigation for authenticated users.
 * Mobile: collapses to hamburger overlay.
 */

/* ============================================================================
   SIDEBAR - Desktop fixed left panel
   ============================================================================ */

.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--sidebar-width);
  background: var(--card-bg-pure);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 200;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

/* Sidebar header - logo area */
.sidebar-header {
  padding: var(--space-lg) var(--space-md);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.sidebar-logo {
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: -0.02em;
  display: block;
}

.sidebar-logo:hover {
  color: var(--accent);
  text-decoration: none;
}

/* Sidebar org identity */
.sidebar-org {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.sidebar-org .organization-logo-display {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
}

.sidebar-org .organization-logo-placeholder {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.sidebar-org-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-org-name {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

a.sidebar-org-name {
  text-decoration: none;
  color: inherit;
}

a.sidebar-org-name:hover {
  color: var(--accent);
}

/* Sidebar navigation */
.sidebar-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: var(--space-sm) 0;
  overflow-y: auto;
}

.sidebar-nav .nav-container {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 0 var(--space-sm);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--text-light);
  font-size: var(--text-sm);
  font-weight: 500;
  transition: background var(--transition-fast), color var(--transition-fast);
  min-height: var(--touch-target-recommended);
}

.nav-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: currentColor;
}

turbo-frame#nav_user_avatar,
#nav_user_avatar {
  display: contents;
}

.nav-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 1px solid var(--border);
  display: block;
}

.nav-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: currentColor;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  min-width: 0;
}

/* Active state */
.nav-item.active {
  color: var(--accent);
}

.nav-item.active .nav-icon {
  color: var(--accent);
}

/* Hover state */
@media (any-hover: hover) {
  .nav-item:hover:not(.active) {
    background: var(--accent-bg);
    color: var(--text);
  }
}

/* Tap feedback for sidebar nav items */
.sidebar-nav .nav-item:active {
  background: var(--accent-bg);
  opacity: 0.8;
  transition-duration: 0.05s;
}

/* Sidebar Add Session action button */
.sidebar-action {
  padding: var(--space-sm) var(--space-md);
  margin-top: var(--space-xs);
  border-top: 1px solid var(--border);
}

.sidebar-action .sidebar-add-session-btn {
  width: 100%;
  justify-content: flex-start;
}

.sidebar-add-session {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--accent);
  color: oklch(97% 0 0);
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 600;
  transition: background var(--transition-fast);
  min-height: var(--touch-target-recommended);
}

.sidebar-add-session .icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: currentColor;
}

@media (any-hover: hover) {
  .sidebar-add-session:hover {
    background: color-mix(in oklch, var(--accent) 85%, oklch(0% 0 0));
    color: oklch(97% 0 0);
    text-decoration: none;
  }
}

.sidebar-add-session:active {
  transition-duration: 0.05s;
}

/* Sidebar footer */
.sidebar-footer {
  flex-shrink: 0;
  border-top: 1px solid var(--border);
  padding: var(--space-sm) 0;
}

.sidebar-footer .nav-container {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 0 var(--space-sm);
}

/* Mobile visibility helpers */
.desktop-only {
  display: none;
}

.mobile-only {
  display: flex;
}

/* ============================================================================
   MOBILE TOPBAR - Visible only on mobile
   ============================================================================ */

.mobile-topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 52px;
  background: var(--card-bg-pure);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 var(--space-md);
  gap: var(--space-md);
  z-index: 150;
}

.mobile-topbar-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
  flex: 1;
}

.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  border-radius: var(--radius-sm);
  padding: 0;
  min-height: unset;
  min-width: unset;
  flex-shrink: 0;
}

.mobile-menu-btn .icon {
  width: 22px;
  height: 22px;
  color: currentColor;
}

@media (any-hover: hover) {
  .mobile-menu-btn:hover {
    background: var(--accent-bg);
  }
}

/* ============================================================================
   SIDEBAR BACKDROP - Mobile overlay
   ============================================================================ */

.sidebar-backdrop {
  position: fixed;
  inset: 0;
  background: oklch(0% 0 0 / 0.4);
  z-index: 190;
  opacity: 0;
  pointer-events: none;
  transition: opacity 250ms ease;
}

.sidebar-backdrop.is-visible {
  opacity: 1;
  pointer-events: auto;
}

/* ============================================================================
   RESPONSIVE - Mobile sidebar as overlay
   ============================================================================ */

@media (max-width: 767px) {
  /* Hide sidebar by default on mobile */
  .sidebar {
    transform: translateX(-100%);
    transition: transform 250ms var(--ease-spring);
  }

  /* Show sidebar when open */
  .sidebar.is-open {
    transform: translateX(0);
  }

  /* Mobile topbar hidden on mobile - replaced by bottom nav */
  .mobile-topbar {
    display: none;
  }

  .desktop-only {
    display: none;
  }

  .mobile-only {
    display: flex;
  }
}

@media (min-width: 768px) {
  /* Desktop: sidebar always visible */
  .sidebar {
    transform: none;
  }

  /* Desktop: hide mobile topbar */
  .mobile-topbar {
    display: none;
  }

  .desktop-only {
    display: flex;
  }

  .mobile-only {
    display: none;
  }
}


/* ============================================================================
   USER MENU ITEMS - Reused in dropdowns/panels
   ============================================================================ */

.user-menu-item {
  --btn-outline-color: var(--accent);
  display: flex;
  align-items: center;
  padding: var(--space-sm) var(--space-md);
  color: var(--text);
  text-decoration: none;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  transition: opacity var(--transition-standard), transform var(--transition-standard);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
  min-block-size: 2.75rem;
  touch-action: manipulation;
}

.sign-out-btn {
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
}

.user-menu {
  position: absolute;
  inset-block-start: 100%;
  inset-inline-end: 0;
  margin-block-start: var(--space-xs);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  z-index: 1001;
  max-block-size: 50vh;
  overflow-y: auto;
  min-inline-size: 10rem;
}

.nav-menu {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xs);
}

@media (any-hover: hover) {
  .user-menu-item:hover,
  .user-menu-item:focus-visible {
    outline: var(--btn-outline-width, 2px) solid var(--btn-outline-color, var(--accent));
    color: var(--accent);
  }
}

.user-menu-item:active {
  outline: none;
  transition-duration: var(--btn-active-transition, 0.05s);
}

/* ============================================================================
   BOTTOM NAV - Mobile navigation bar (restored original style)
   ============================================================================ */

.nav {
  position: fixed;
  inset: auto 0 0 0;
  z-index: 100;
  background: var(--card-bg-pure);
  border-top: 1px solid var(--border);
  box-shadow: 0 -1px 0 var(--border), 0 -4px 24px oklch(0% 0 0 / 0.06);
}

.nav .nav-container {
  display: flex;
  justify-content: space-around;
  align-items: stretch;
  height: calc(var(--nav-height-mobile) + env(safe-area-inset-bottom, 0));
  max-width: 48rem;
  margin: 0 auto;
}

.nav .nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: var(--space-xs);
  text-decoration: none;
  color: var(--text-lighter);
  transition: color var(--transition-standard), opacity var(--transition-standard);
  position: relative;
  min-height: var(--touch-target-recommended);
  padding: var(--space-sm) var(--space-xs) calc(var(--space-sm) + env(safe-area-inset-bottom, 0)) var(--space-xs);
  background: none;
  border: none;
  border-radius: 0;
}

.nav .nav-item.active {
  color: var(--accent);
  background: none;
}

.nav .nav-item .nav-icon {
  width: 24px;
  height: 24px;
}

.nav .nav-item .nav-label {
  font-size: 0.625rem;
  font-weight: 500;
  line-height: 1;
  color: currentColor;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: initial;
  min-width: unset;
}

/* FAB - Add Session button */
.nav .nav-item-add {
  position: relative;
  background: var(--accent);
  color: var(--bg);
  border-radius: 50%;
  width: 56px;
  height: 56px;
  min-width: 56px;
  min-height: 56px;
  max-width: 56px;
  max-height: 56px;
  margin-top: -20px;
  margin-bottom: env(safe-area-inset-bottom, 0);
  flex: none;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  padding: 0;
}

.nav .nav-item-add .nav-icon {
  width: 28px;
  height: 28px;
  color: white;
  margin: 0;
}

.nav .nav-item-add .nav-label {
  display: none;
}

@media (any-hover: hover) {
  .nav .nav-item:not(.nav-item-add):hover {
    background: var(--accent-bg);
    color: var(--text-lighter);
  }

  .nav .nav-item-add:hover {
    background: color-mix(in oklch, var(--accent) 85%, white);
    color: var(--bg);
  }
}

.nav .nav-item-add:active {
  outline: none;
  transform: scale(0.92);
  transition: transform 0.1s ease, background 0.05s;
}

/* Tap feedback for bottom nav items */
.nav .nav-item:not(.nav-item-add):active {
  opacity: 0.6;
  transform: scale(0.94);
  transition-duration: 0.05s;
}

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