/* App shell */
.app-body {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 100%;
  overflow: hidden;
}

.app-shell {
  display: flex;
  flex: 1;
  min-height: 0;
  height: auto;
  overflow: hidden;
  background: var(--color-surface-card);
}

.main-panel {
  flex: 1;
  min-width: 0;
  overflow-y: auto;
  background: var(--color-surface-card);
  display: flex;
  flex-direction: column;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--color-surface-panel);
  border-right: var(--border-width-strong) solid var(--color-border-soft);
}

.sidebar-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-5) var(--space-4) var(--space-3);
  border-bottom: var(--border-width-strong) solid var(--color-border-soft);
}

.logo-mark {
  flex-shrink: 0;
}

.logo-name {
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -0.5px;
}

.logo-subtitle {
  margin-top: 1px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--color-primary-500);
}

.sidebar-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4) var(--space-3) var(--space-3);
}

.sidebar-mobile-header,
.sidebar-mobile-actions,
.sidebar-backdrop {
  display: none;
}

.sidebar-new-button {
  width: 100%;
  margin-bottom: var(--space-5);
  padding: var(--space-2) var(--space-3);
  text-align: center;
  border-radius: var(--radius-xl);
  font-size: 12px;
  font-weight: 800;
}

.sidebar-label {
  padding: var(--space-1) var(--space-1) calc(var(--space-unit) * 1.5);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--color-primary-400);
}

.sidebar-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.sidebar-item {
  position: relative;
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  cursor: pointer;
  transition: background var(--transition-base), border-color var(--transition-base);
}

.sidebar-item:hover {
  background: var(--color-surface-soft);
}

.sidebar-item.is-active {
  background: var(--color-primary-050);
  border: var(--border-width-soft) solid var(--color-primary-300);
}

.sidebar-item-title {
  margin-bottom: 5px;
  font-size: 12px;
  font-weight: 800;
  color: var(--color-text-strong);
}

.sidebar-item-title.is-dimmed {
  color: var(--color-text-muted);
}

.sidebar-item-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: var(--space-1);
}

.sidebar-item-count {
  font-size: 10px;
  font-weight: 800;
  color: #ff9975;
}

.sidebar-item-progress {
  height: var(--space-1);
}

.sidebar-item-delete {
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
  width: var(--space-4);
  height: var(--space-4);
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 900;
  color: var(--color-primary-400);
  opacity: 0;
  transition: opacity var(--transition-base), background var(--transition-base);
}

.sidebar-item:hover .sidebar-item-delete {
  opacity: 1;
}

.sidebar-item-delete:hover {
  background: var(--color-primary-100);
}