/* Left Navigation Sidebar styles */

/* Lock body and html scroll when the app layout is active to prevent page overscroll/bouncing */
html:has(.app-layout),
body:has(.app-layout) {
  overflow: hidden !important;
  height: 100% !important;
  position: fixed !important;
  width: 100% !important;
  overscroll-behavior: none !important;
}

.app-layout {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1000;
  display: flex;
  background-color: var(--bg-primary);
  font-family: var(--font-family);
  overflow: hidden;
}

/* Sidebar navigation rail */
.nav-sidebar {
  width: 75px;
  height: 100%;
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px 0;
  flex-shrink: 0;
  position: relative;
  z-index: 1002;
}

/* Logo icon at top */
.nav-logo {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  justify-content: center;
  align-items: center;
  background: var(--accent-gradient);
  color: white;
  margin-bottom: 20px;
  box-shadow: 0 4px 15px var(--accent-glow);
  flex-shrink: 0;
}

/* Nav Menu Items */
.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
  align-items: center;
  flex: 1;
}

.nav-item {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--text-muted);
  transition: var(--transition-smooth);
  position: relative;
  cursor: pointer;
  background: transparent;
  text-decoration: none;
}

.nav-item:hover {
  color: var(--text-primary);
  background-color: hsla(230, 25%, 20%, 0.45);
  transform: scale(1.05);
}

.nav-item.active {
  color: white;
  background: var(--accent-gradient);
  box-shadow: 0 4px 12px var(--accent-glow);
}

/* Left Indicator bar on active */
.nav-item.active::before {
  content: '';
  position: absolute;
  left: -13px;
  top: 12px;
  width: 4px;
  height: 24px;
  border-radius: 0 4px 4px 0;
  background-color: var(--accent-color);
  box-shadow: 0 0 8px var(--accent-color);
}

/* Footer Section */
.nav-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin-top: auto;
  width: 100%;
  flex-shrink: 0;
}

.nav-notification-btn {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--text-muted);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.nav-notification-btn:hover {
  color: var(--accent-color);
  background-color: hsla(230, 25%, 20%, 0.45);
  transform: scale(1.05);
}

.nav-notification-btn .nav-bell-icon.enabled {
  color: var(--accent-color);
  fill: hsla(217, 100%, 61%, 0.2);
  filter: drop-shadow(0 0 4px var(--accent-glow));
}

.nav-notification-btn .nav-bell-icon.disabled {
  color: var(--text-muted);
}

.nav-logout-btn {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--text-muted);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.nav-logout-btn:hover {
  color: var(--error);
  background-color: rgba(239, 68, 68, 0.1);
  transform: scale(1.05);
}

/* Main Content Mounting Panel */
.main-content-panel {
  flex: 1;
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 30px;
  background: transparent;
  position: relative;
  z-index: 1001;
}

/* Custom Scrollbar for the main content area */
.main-content-panel::-webkit-scrollbar {
  width: 8px;
}

.main-content-panel::-webkit-scrollbar-track {
  background: transparent;
}

.main-content-panel::-webkit-scrollbar-thumb {
  background: hsla(230, 25%, 20%, 0.4);
  border-radius: var(--radius-full);
}

.main-content-panel::-webkit-scrollbar-thumb:hover {
  background: hsla(230, 25%, 35%, 0.6);
}

@media (max-width: 768px) {
  .app-layout {
    flex-direction: column-reverse;
  }

  .nav-sidebar {
    width: 100%;
    height: calc(60px + env(safe-area-inset-bottom));
    border-right: none;
    border-top: 1px solid var(--border-color);
    flex-direction: row;
    padding: 0 10px env(safe-area-inset-bottom) 10px;
    align-items: center;
    justify-content: space-between;
    box-sizing: border-box;
  }

  .nav-logo {
    display: none;
  }

  .nav-menu {
    flex-direction: row;
    gap: 0;
    width: auto;
    flex: 1;
    justify-content: space-around;
  }

  .nav-item {
    width: 44px;
    height: 44px;
  }

  .nav-item.active::before {
    left: 12px;
    top: -20px; /* Shift to the top edge of the bottom bar */
    width: 20px;
    height: 3px;
    border-radius: 0 0 3px 3px;
  }

  .nav-footer {
    flex-direction: row;
    margin-top: 0;
    width: auto;
    padding-left: 10px;
    border-left: 1px solid var(--border-color);
  }

  .nav-logout-btn,
  .nav-notification-btn {
    width: 44px;
    height: 44px;
  }

  .main-content-panel {
    padding: 16px;
    height: calc(100% - 60px - env(safe-area-inset-bottom));
  }

  /* Hide bottom bar and make conversation full screen when entering a chat */
  .app-layout:has(.chat-dashboard.show-chat) .nav-sidebar {
    display: none !important;
  }

  .app-layout:has(.chat-dashboard.show-chat) .main-content-panel {
    height: 100% !important;
    padding: 0 !important;
    overflow: hidden !important;
  }
}