/* Sidebar */
.sidebar {
  width: 260px;
  min-width: 260px;
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  padding: 24px 0;
}

.sidebar-title {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 400;
  color: var(--sidebar-active);
  padding: 0 24px 24px;
  letter-spacing: 0.02em;
}

.sidebar-part {
  padding: 0;
  margin-bottom: 4px;
}

.sidebar-part-name {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--sidebar-text);
  padding: 16px 24px 6px;
  cursor: pointer;
  user-select: none;
}

.sidebar-section {
  font-size: 13px;
  padding: 7px 24px 7px 36px;
  cursor: pointer;
  transition: all 0.15s;
  color: var(--sidebar-text);
  border-left: 2px solid transparent;
}

.sidebar-section:hover {
  color: var(--sidebar-active);
  background: rgba(255,255,255,0.04);
}

.sidebar-section.active {
  color: var(--sidebar-active);
  border-left-color: var(--sidebar-accent);
  background: rgba(255,255,255,0.06);
}

.sidebar-section .count {
  float: right;
  font-size: 11px;
  color: var(--sidebar-text);
  opacity: 0.5;
}

.sidebar-divider {
  height: 1px;
  background: rgba(255,255,255,0.08);
  margin: 16px 24px;
}

.sidebar-inbox {
  font-size: 13px;
  padding: 10px 24px;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--sidebar-text);
  border-left: 2px solid transparent;
}

.sidebar-inbox:hover {
  color: var(--sidebar-active);
  background: rgba(255,255,255,0.04);
}

.sidebar-inbox.active {
  color: var(--sidebar-active);
  border-left-color: var(--sidebar-accent);
  background: rgba(255,255,255,0.06);
}

.sidebar-inbox .badge {
  background: var(--sidebar-accent);
  color: var(--sidebar-bg);
  font-size: 11px;
  font-weight: 600;
  padding: 1px 7px;
  border-radius: 10px;
}

.sidebar-all {
  font-size: 13px;
  padding: 10px 24px;
  cursor: pointer;
  transition: all 0.15s;
  color: var(--sidebar-text);
  border-left: 2px solid transparent;
}

.sidebar-all:hover {
  color: var(--sidebar-active);
  background: rgba(255,255,255,0.04);
}

.sidebar-all.active {
  color: var(--sidebar-active);
  border-left-color: var(--sidebar-accent);
  background: rgba(255,255,255,0.06);
}

/* Skipped highlights */
.sidebar-skipped {
  font-size: 13px;
  padding: 10px 24px;
  cursor: pointer;
  transition: all 0.15s;
  color: var(--sidebar-text);
  border-left: 2px solid transparent;
  opacity: 0.6;
}

.sidebar-skipped:hover {
  color: var(--sidebar-active);
  background: rgba(255,255,255,0.04);
  opacity: 1;
}

.sidebar-skipped.active {
  color: var(--sidebar-active);
  border-left-color: var(--sidebar-accent);
  background: rgba(255,255,255,0.06);
  opacity: 1;
}

/* Projects */
.sidebar-project {
  font-size: 13px;
  padding: 7px 24px 7px 36px;
  cursor: pointer;
  transition: all 0.15s;
  color: var(--sidebar-text);
  border-left: 2px solid transparent;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sidebar-project:hover {
  color: var(--sidebar-active);
  background: rgba(255,255,255,0.04);
}

.sidebar-project.active {
  color: var(--sidebar-active);
  border-left-color: var(--sidebar-accent);
  background: rgba(255,255,255,0.06);
}

.sidebar-new-project {
  font-size: 12px;
  padding: 7px 24px 7px 36px;
  cursor: pointer;
  color: var(--sidebar-text);
  opacity: 0.5;
  transition: all 0.15s;
}

.sidebar-new-project:hover {
  opacity: 1;
  color: var(--sidebar-active);
}

/* Export/Import */
.sidebar-actions {
  padding: 0 24px;
  display: flex;
  gap: 6px;
}

.sidebar-action-btn {
  font-size: 11px;
  color: var(--sidebar-text);
  background: none;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 3px;
  padding: 4px 10px;
  cursor: pointer;
  font-family: var(--sans);
}

.sidebar-action-btn:hover {
  border-color: rgba(255,255,255,0.3);
  color: var(--sidebar-active);
}

/* Keyboard shortcut hint */
.sidebar-kb-hint {
  font-size: 11px;
  color: var(--sidebar-text);
  opacity: 0.4;
  padding: 4px 24px 0;
  font-family: var(--sans);
  letter-spacing: 0.03em;
}

/* Stats bar */
.stats-bar {
  font-size: 12px;
  color: var(--text-muted);
  padding: 8px 24px;
  margin-top: auto;
  border-top: 1px solid rgba(255,255,255,0.06);
}

/* Folder drag indicators */
.sidebar-folder-root[draggable],
.sidebar-folder-child[draggable] {
  cursor: grab;
}

.sidebar-folder-root[draggable]:active,
.sidebar-folder-child[draggable]:active {
  cursor: grabbing;
}

.dragging {
  opacity: 0.4;
}

.drop-before {
  border-top: 2px solid var(--sidebar-accent) !important;
}

.drop-after {
  border-bottom: 2px solid var(--sidebar-accent) !important;
}

.drop-inside {
  background: rgba(255,255,255,0.1) !important;
  border-radius: 4px;
}

/* Hamburger menu */
.hamburger {
  display: none;
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 101;
  background: var(--sidebar-bg);
  color: var(--sidebar-active);
  border: none;
  border-radius: 4px;
  padding: 8px 12px;
  font-size: 18px;
  cursor: pointer;
}

.sidebar-backdrop {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.4);
  z-index: 99;
}

/* Responsive */
/* Folder star dot */
.folder-star {
  font-size: 8px;
  color: rgba(255,255,255,0.15);
  cursor: pointer;
  margin-right: 6px;
  transition: color 0.15s;
  vertical-align: middle;
}

.folder-star:hover {
  color: rgba(255,255,255,0.4);
}

.folder-star.starred {
  color: var(--sidebar-accent);
}

.folder-star.starred:hover {
  color: #b0903a;
}

@media (max-width: 900px) {
  .sidebar { width: 220px; min-width: 220px; }
  .main { padding: 32px 32px; }
}

@media (max-width: 768px) {
  .hamburger { display: block; }
  .sidebar-backdrop.open { display: block; }
  .sidebar {
    position: fixed;
    top: 0; left: 0; bottom: 0;
    transform: translateX(-100%);
    transition: transform 0.2s ease;
    z-index: 100;
  }
  .sidebar.open { transform: translateX(0); }
  .main { padding: 24px 16px; padding-top: 56px; max-width: 100%; }
}