/* sidebar.css — Extracted from sidebar.js (FASE C3) */

.pos-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 260px;
  display: flex;
  flex-direction: column;
  background: var(--color-bg-elevated);
  border-right: 1px solid var(--color-border);
  z-index: 100;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb, #444) var(--scrollbar-track, #222);
  font-family: var(--font-body);
}
.pos-sidebar::-webkit-scrollbar { width: 4px; }
.pos-sidebar::-webkit-scrollbar-track { background: var(--scrollbar-track, #222); }
.pos-sidebar::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb, #444); border-radius: 99px; }

.sidebar__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3, 12px);
  padding: var(--space-4, 16px) var(--space-4, 16px) var(--space-3, 12px);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}
.brand-logo {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: var(--color-text-inverse, #fff);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: -0.04em;
  flex-shrink: 0;
}
[data-theme="industrial"] .brand-logo {
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 0 100%);
}
[data-theme="modern"] .brand-logo {
  border-radius: var(--radius-md, 8px);
}
.brand-name__primary {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.9375rem;
  letter-spacing: var(--tracking-wide, 0.02em);
  text-transform: uppercase;
  color: var(--color-text-primary);
  line-height: 1;
}
.brand-name__sub {
  font-size: var(--text-caption, 0.75rem);
  color: var(--color-text-muted);
  letter-spacing: var(--tracking-wider, 0.04em);
  text-transform: uppercase;
  margin-top: 2px;
}

.sidebar__nav {
  flex: 1;
  padding: var(--space-3, 12px) 0;
}
.nav-section-label {
  padding: var(--space-3, 12px) var(--space-4, 16px) var(--space-1, 4px);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: var(--tracking-widest, 0.08em);
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3, 12px);
  padding: var(--space-2, 8px) var(--space-4, 16px);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--text-body-sm, 0.875rem);
  font-weight: 400;
  border-left: 3px solid transparent;
  transition: all 0.15s;
  cursor: pointer;
}
.nav-item:hover {
  background: var(--color-surface-2, rgba(255, 255, 255, 0.04));
  color: var(--color-text-primary);
}
.nav-item.is-active {
  background: var(--color-primary-muted, rgba(245, 166, 35, 0.12));
  color: var(--color-primary);
  border-left-color: var(--color-primary);
  font-weight: 600;
}
.nav-item__icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  opacity: 0.7;
}
.nav-item.is-active .nav-item__icon { opacity: 1; }

.sidebar__theme-toggle,
.sidebar__lang-toggle {
  display: flex;
  gap: 4px;
  padding: 8px 16px;
  border-top: 1px solid var(--color-border);
}
.theme-toggle-btn,
.lang-toggle-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm, 4px);
  background: none;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all 0.15s;
  font-size: 0.75rem;
}
.theme-toggle-btn:hover,
.lang-toggle-btn:hover {
  color: var(--color-text-primary);
  background: var(--color-surface-2, rgba(255, 255, 255, 0.04));
}
.theme-toggle-btn.is-active,
.lang-toggle-btn.is-active {
  background: var(--color-primary-muted, rgba(245, 166, 35, 0.12));
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.lang-flag {
  font-weight: 700;
  font-size: 0.625rem;
  letter-spacing: 0.04em;
}

.sidebar__footer {
  padding: var(--space-3, 12px) var(--space-4, 16px);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: var(--space-2, 8px);
}
.sidebar__user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-text-inverse, #fff);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6875rem;
  font-weight: 700;
  flex-shrink: 0;
}
.sidebar__user-info { flex: 1; overflow: hidden; }
.sidebar__user-name {
  font-size: var(--text-body-sm, 0.875rem);
  font-weight: 600;
  color: var(--color-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sidebar__user-role {
  font-size: var(--text-caption, 0.75rem);
  color: var(--color-text-muted);
}
.sidebar__logout-btn {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm, 4px);
  padding: 4px 6px;
  cursor: pointer;
  color: var(--color-text-muted);
  transition: all 0.15s;
  display: flex;
  align-items: center;
}
.sidebar__logout-btn:hover {
  color: var(--color-error, #F85149);
  border-color: var(--color-error, #F85149);
}

.pos-main-offset { margin-left: 260px; }

@media (max-width: 768px) {
  .pos-sidebar { width: 56px; }
  .brand-name,
  .nav-item span,
  .sidebar__user-info,
  .nav-section-label,
  .sidebar__theme-toggle,
  .sidebar__lang-toggle { display: none; }
  .sidebar__brand { justify-content: center; padding: 12px 8px; }
  .sidebar__footer { flex-direction: column; padding: 8px; }
  .pos-main-offset { margin-left: 56px; }
}