/**
 * Sidebar Component Styles
 * Dark sidebar navigation with role/tier-based visibility
 * Responsive: Desktop (220px fixed) → Tablet (220px fixed) → Mobile (hidden, bottom nav instead)
 */

:root {
  /* Sidebar colors - using design system */
  --sidebar-bg: #1A1F2E;
  --sidebar-text: #F5F5F5;
  --sidebar-text-muted: rgba(245, 245, 245, 0.6);
  --sidebar-link-hover-bg: rgba(0, 102, 204, 0.1);
  --sidebar-link-active-bg: rgba(0, 102, 204, 0.15);
  --sidebar-border: rgba(0, 102, 204, 0.2);

  /* Sidebar dimensions */
  --sidebar-width: 220px;
  --sidebar-link-height: 44px;
  --sidebar-link-gap: 12px;
  --sidebar-padding: 20px;
}

/* ============================================================================
   Sidebar Container
   ============================================================================ */

.sidebar {
  position: sticky;
  grid-column: 1;
  grid-row: 2;
  top: 72px;
  left: 0;
  width: 100%;
  height: calc(100vh - 72px);
  background: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
  display: flex;
  flex-direction: column;
  z-index: 100;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(248, 243, 235, 0.2) transparent;
}

.sidebar::-webkit-scrollbar {
  width: 6px;
}

.sidebar::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
  background-color: rgba(248, 243, 235, 0.2);
  border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
  background-color: rgba(248, 243, 235, 0.3);
}

/* ============================================================================
   Sidebar Header (optional, for future branding)
   ============================================================================ */

.sidebar-header {
  padding: var(--sidebar-padding);
  border-bottom: 1px solid var(--sidebar-border);
}

.sidebar-city-pill {
  display: inline-block;
  padding: 6px 12px;
  background: rgba(0, 102, 204, 0.15);
  border: 1px solid rgba(0, 102, 204, 0.3);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  color: var(--sidebar-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

/* ============================================================================
   Navigation List
   ============================================================================ */

.sidebar-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: var(--sidebar-padding) 0;
  list-style: none;
  margin: 0;
}

.sidebar-section {
  display: grid;
  gap: 6px;
}

.sidebar-section-header {
  display: grid;
  gap: 4px;
  padding: 0 var(--sidebar-padding);
}

.sidebar-section-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sidebar-text-muted);
}

.sidebar-section-description {
  margin: 0;
  font-size: 12px;
  line-height: 1.45;
  color: rgba(245, 245, 245, 0.72);
}

.sidebar-section-links {
  display: grid;
}

/* ============================================================================
   Navigation Links
   ============================================================================ */

.sidebar-link {
  display: flex;
  align-items: center;
  gap: var(--sidebar-link-gap);
  padding: 12px var(--sidebar-padding);
  color: var(--sidebar-text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
  border-left: 3px solid transparent;
  cursor: pointer;
  transition:
    color 0.18s ease,
    background-color 0.18s ease,
    border-color 0.18s ease,
    padding-left 0.18s ease;
  min-height: var(--sidebar-link-height);
  user-select: none;
  border: none;
  background: none;
  text-align: left;
}

.sidebar-link:hover {
  color: var(--sidebar-text);
  background: var(--sidebar-link-hover-bg);
  padding-left: calc(var(--sidebar-padding) + 2px);
}

.sidebar-link.active {
  color: var(--sidebar-text);
  background: var(--sidebar-link-active-bg);
  border-left-color: var(--color-primary);
  padding-left: var(--sidebar-padding);
}

.sidebar-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
}

.sidebar-link[aria-current="page"] {
  color: var(--sidebar-text);
  background: var(--sidebar-link-active-bg);
  border-left-color: var(--color-primary);
}

.sidebar-link--logout {
  color: #ffb7bf;
}

.sidebar-link--logout:hover,
.sidebar-link--logout[aria-current="page"] {
  background: rgba(220, 53, 69, 0.16);
  border-left-color: var(--color-error);
  color: var(--sidebar-text);
}

/* Reduce motion support */
@media (prefers-reduced-motion: reduce) {
  .sidebar-link {
    transition: none;
  }
}

/* ============================================================================
   Navigation Link Elements
   ============================================================================ */

.sidebar-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  font-size: 16px;
  flex-shrink: 0;
}

.sidebar-label {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
}

.sidebar-badge {
  margin-left: auto;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sidebar-text);
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.sidebar-link.active .sidebar-badge,
.sidebar-link:hover .sidebar-badge {
  background: rgba(255, 255, 255, 0.18);
}

/* ============================================================================
   Sidebar Footer (User Info + Logout)
   ============================================================================ */

.sidebar-footer {
  padding: var(--sidebar-padding);
  border-top: 1px solid var(--sidebar-border);
  background: rgba(0, 0, 0, 0.2);
  display: grid;
  gap: 16px;
  flex-shrink: 0;
}

/* ============================================================================
   User Info Section
   ============================================================================ */

.user-info {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: var(--sidebar-link-gap);
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.user-details {
  display: flex;
  flex-direction: column;
  gap: 2px;
  justify-content: center;
  min-width: 0;
}

.user-email {
  font-size: 12px;
  font-weight: 600;
  color: var(--sidebar-text);
  word-break: break-word;
  overflow-wrap: break-word;
  line-height: 1.3;
}

.user-role {
  font-size: 11px;
  color: var(--sidebar-text-muted);
  text-transform: capitalize;
  line-height: 1.2;
}

.user-tier {
  font-size: 11px;
  color: var(--color-primary-light);
  line-height: 1.2;
}

/* ============================================================================
   Logout Button
   ============================================================================ */

.btn-logout {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  width: 100%;
  padding: 10px 12px;
  background: rgba(220, 53, 69, 0.15);
  color: var(--sidebar-text);
  border: 1px solid rgba(220, 53, 69, 0.3);
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  transition:
    background-color 0.18s ease,
    border-color 0.18s ease,
    color 0.18s ease,
    transform 0.18s ease;
  text-align: left;
}

.btn-logout:hover {
  background: rgba(220, 53, 69, 0.25);
  border-color: rgba(220, 53, 69, 0.5);
}

.btn-logout:focus-visible {
  outline: 2px solid var(--color-error);
  outline-offset: 2px;
}

.btn-logout:active {
  background: rgba(220, 53, 69, 0.35);
}

.logout-icon {
  display: inline-flex;
  font-size: 14px;
}

.logout-label {
  font-size: 12px;
  font-weight: 600;
}

/* Reduce motion support */
@media (prefers-reduced-motion: reduce) {
  .btn-logout {
    transition: none;
  }
}

/* ============================================================================
   Mobile Bottom Navigation Bar
   ============================================================================ */

.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: var(--sidebar-bg);
  border-top: 1px solid var(--sidebar-border);
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: 100;
  overflow-x: auto;
}

.bottom-nav::-webkit-scrollbar {
  display: none;
}

.bottom-nav-links {
  display: flex;
  justify-content: space-around;
  align-items: center;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  list-style: none;
  gap: 0;
}

/* ============================================================================
   Bottom Navigation Links
   ============================================================================ */

.bottom-nav-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  height: 100%;
  min-height: 56px;
  min-width: 56px;
  font-size: 24px;
  color: var(--sidebar-text-muted);
  text-decoration: none;
  transition:
    color 0.18s ease,
    background-color 0.18s ease,
    border-color 0.18s ease;
  border-top: 3px solid transparent;
  cursor: pointer;
  user-select: none;
  border: none;
  background: none;
}

.bottom-nav-link:hover {
  color: var(--sidebar-text);
  background: var(--sidebar-link-hover-bg);
}

.bottom-nav-link.active {
  color: var(--sidebar-text);
  border-top-color: var(--accent);
  background: var(--sidebar-link-active-bg);
}

.bottom-nav-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.bottom-nav-link[aria-current="page"] {
  color: var(--sidebar-text);
  border-top-color: var(--accent);
  background: var(--sidebar-link-active-bg);
}

.bottom-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.bottom-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-top: 2px;
}

/* Reduce motion support */
@media (prefers-reduced-motion: reduce) {
  .bottom-nav-link {
    transition: none;
  }
}

/* ============================================================================
   Responsive Layout
   ============================================================================ */

/* Tablet: Sidebar visible (220px), content may stack */
@media (min-width: 600px) and (max-width: 768px) {
  .sidebar {
    width: var(--sidebar-width);
    display: flex;
  }

  .bottom-nav {
    display: none;
  }
}

/* Tablet to Desktop: Show sidebar */
@media (min-width: 769px) {
  .sidebar {
    display: flex;
  }

  .bottom-nav {
    display: none;
  }
}

/* Mobile: Hide sidebar, show bottom nav */
@media (max-width: 768px) {
  .sidebar {
    display: none;
  }

  .bottom-nav {
    display: flex;
  }
}

/* Small mobile: Further optimization */
@media (max-width: 480px) {
  .sidebar {
    display: none;
  }

  .bottom-nav {
    display: flex;
    height: 52px;
  }

  .bottom-nav-link {
    min-height: 52px;
    min-width: 52px;
    font-size: 22px;
  }

  .bottom-icon {
    font-size: 20px;
  }

  .bottom-label {
    font-size: 9px;
  }
}

/* ============================================================================
   Accessibility
   ============================================================================ */

/* High contrast mode support */
@media (prefers-contrast: more) {
  .sidebar-link {
    border-left-width: 4px;
  }

  .sidebar-link.active {
    border-left-width: 4px;
  }

  .btn-logout {
    border-width: 2px;
  }

  .bottom-nav-link {
    border-top-width: 4px;
  }

  .bottom-nav-link.active {
    border-top-width: 4px;
  }
}

/* Print styles */
@media print {
  .sidebar,
  .bottom-nav {
    display: none;
  }
}