/* ====================== SIDEBAR LAYOUT ====================== */
#sidebar {
  grid-row: 1 / -1;
  grid-column: 1;
  display: flex;
  flex-direction: column;
  height: 100vh;
  position: sticky;
  top: 0;
  overflow-y: auto;
  overflow-x: hidden;
  z-index: 50;
  transition: width 0.3s var(--ease-out);
}

.sidebar-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 16px 16px;
  flex-shrink: 0;
}
.sidebar-header .castle-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}
.sidebar-brand {
  display: flex;
  flex-direction: column;
  min-width: 0;
  flex: 1;
}
.sidebar-title {
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sidebar-subtitle {
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-collapse-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 14px;
  flex-shrink: 0;
  transition: background 0.2s, transform 0.3s;
}
#sidebar.collapsed .sidebar-collapse-btn .collapse-icon {
  display: inline-block;
  transform: rotate(180deg);
}

.sidebar-nav {
  flex: 1;
  padding: 8px;
  overflow-y: auto;
}
.nav-section {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.nav-divider {
  height: 1px;
  margin: 8px 12px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  cursor: pointer;
  text-decoration: none;
  border-radius: 10px;
  transition: background 0.2s, color 0.2s;
  border-left: 3px solid transparent;
  position: relative;
  white-space: nowrap;
}
.nav-icon {
  font-size: 18px;
  width: 24px;
  text-align: center;
  flex-shrink: 0;
}
.nav-label {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
}
.nav-shortcut {
  font-size: 11px;
  opacity: 0.4;
  font-family: monospace;
  flex-shrink: 0;
}
.nav-shortcut.pro-only { display: none; }
body.mode-pro .nav-shortcut.pro-only { display: inline; }

/* Collapsed sidebar */
#sidebar.collapsed {
  width: 48px !important;
}
#sidebar.collapsed .sidebar-brand,
#sidebar.collapsed .nav-label,
#sidebar.collapsed .nav-shortcut,
#sidebar.collapsed .sidebar-footer,
#sidebar.collapsed .sidebar-subtitle {
  display: none;
}
#sidebar.collapsed .nav-item {
  justify-content: center;
  padding: 10px 0;
  border-left: none;
  gap: 0;
}
body.mode-pro #sidebar.collapsed .nav-item {
  position: relative;
}
body.mode-pro #sidebar.collapsed .nav-item::after {
  content: attr(data-label);
  position: absolute;
  left: 56px;
  top: 50%;
  transform: translateY(-50%);
  background: #1a1a2e;
  color: #00D4FF;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 12px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,212,255,0.15);
}
body.mode-pro #sidebar.collapsed .nav-item:hover::after {
  opacity: 1;
}
#sidebar.collapsed .sidebar-header {
  justify-content: center;
  padding: 16px 8px;
  cursor: pointer;
}
#sidebar.collapsed .sidebar-header .castle-icon {
  width: 24px;
  height: 24px;
}
#sidebar.collapsed .sidebar-collapse-btn {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 18px;
  padding: 8px;
  z-index: 60;
}

.sidebar-footer {
  padding: 12px 16px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-top-width: 1px;
  border-top-style: solid;
}
.sidebar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.sidebar-action-btn { flex: 1; }
.sidebar-action-icons {
  display: flex;
  gap: 4px;
}
.sidebar-auth {
  display: flex;
  align-items: center;
  gap: 8px;
}
.sidebar-auth .auth-info {
  min-width: 0;
  flex: 1;
}
.sidebar-auth .auth-name {
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sidebar-mode-toggle {
  display: flex;
  align-items: center;
}

/* ====================== BOTTOM TAB BAR (Mobile) ====================== */
#bottomBar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 60;
  height: calc(56px + env(safe-area-inset-bottom, 0px));
  padding-bottom: env(safe-area-inset-bottom, 0px);
  align-items: center;
  justify-content: space-around;
}
.bottom-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 8px 0;
  background: none;
  border: none;
  cursor: pointer;
  flex: 1;
  transition: color 0.2s;
  position: relative;
}
.bottom-tab-icon {
  font-size: 20px;
  line-height: 1;
}
.bottom-tab-label {
  font-size: 10px;
  font-weight: 600;
}

/* ====================== MORE PANEL (Mobile slide-up) ====================== */
.more-panel {
  display: none;
  position: fixed;
  bottom: 56px;
  left: 0;
  right: 0;
  z-index: 59;
  padding: 16px;
  padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px));
}
.more-panel.show {
  display: block;
}
.more-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  font-weight: 700;
  font-size: 16px;
}
.more-panel-close {
  background: none;
  border: none;
  font-size: 18px;
  cursor: pointer;
  padding: 4px 8px;
}
.more-panel-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  width: 100%;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 15px;
  border-radius: 10px;
}