.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 16px;
  gap: 16px;
  overflow-y: auto;
  flex-shrink: 0;
}

.sidebar-logo {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-logo svg { width: 20px; height: 20px; color: var(--accent); }

#connectBtn {
  width: 100%;
  padding: 10px;
  font-weight: 600;
  border-radius: var(--radius);
  background: var(--accent);
  color: #fff;
  font-size: 14px;
}

#connectBtn:hover { background: var(--accent-hover); }
#connectBtn.connected { background: var(--error); }
#connectBtn.connected:hover { opacity: 0.9; }

.drive-info {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 12px;
}

.drive-info .drive-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

#driveLabel {
  font-weight: 600;
  font-size: 13px;
}

#driveFs {
  font-size: 11px;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
}

#driveCap {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.capacity-bar {
  height: 6px;
  background: var(--border-light);
  border-radius: 3px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  transition: width 0.3s ease;
}

.bar-fill.warn { background: var(--warning); }
.bar-fill.critical { background: var(--error); }

.drive-info:not(.mounted) .capacity-bar { opacity: 0.3; }

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s;
}

.sidebar-nav a:hover { background: var(--bg-surface-hover); }
.sidebar-nav a.active { background: var(--accent-soft); color: var(--accent); }
.sidebar-nav a svg { width: 16px; height: 16px; }

.sidebar-footer {
  margin-top: auto;
  display: flex;
  gap: 8px;
}

#themeBtn {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  font-size: 12px;
  color: var(--text-secondary);
}

@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    left: -100%;
    top: 0;
    bottom: 0;
    z-index: 100;
    width: 280px;
    transition: left 0.2s ease;
  }
  .sidebar.open { left: 0; }
}