:root {
  --sidebar-width: 260px;
  --sidebar-width-collapsed: 72px;
  --sidebar-bg: #14141c;
  --sidebar-text: #a8adba;
  --sidebar-active-bg: rgba(147, 51, 234, 0.15);
  --sidebar-active-text: #a855f7;
}

.app-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  z-index: 999;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  transition:
    width 0.25s ease,
    transform 0.3s ease;
  font-size: 14px;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 18px;
  font-weight: 700;
  font-size: 16px;
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.sidebar-logo a {
  color: #fff;
  text-decoration: none;
}

.sidebar-menu {
  flex: 1;
  padding: 14px 10px;
}

.sidebar-group {
  margin-bottom: 18px;
}

.sidebar-group-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: #6b7280;
  padding: 6px 14px;
  text-transform: uppercase;
}

.sidebar-menu ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sidebar-menu li a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  border-radius: 8px;
  color: var(--sidebar-text);
  text-decoration: none;
  margin: 2px 4px;
  position: relative;
}

.sidebar-menu li a:hover {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
}

.sidebar-menu li.is-active a {
  background: var(--sidebar-active-bg);
  color: var(--sidebar-active-text);
}

.sidebar-menu .dashicons {
  font-size: 18px;
  width: 18px;
  height: 18px;
}

.sidebar-badge {
  margin-left: auto;
  font-size: 10px;
  font-weight: 700;
  color: #fff;
  padding: 2px 6px;
  border-radius: 4px;
  line-height: 1.4;
}

.sidebar-collapse-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: none;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--sidebar-text);
  padding: 14px 18px;
  cursor: pointer;
  font-size: 13px;
}
.sidebar-collapse-toggle:hover {
  color: #fff;
}

/* Đẩy nội dung chính sang phải */
#wrapper {
  margin-left: var(--sidebar-width);
  transition: margin-left 0.25s ease;
}

/* --- Trạng thái Collapse (thu nhỏ) --- */
.app-sidebar.is-collapsed {
  width: var(--sidebar-width-collapsed);
}
.app-sidebar.is-collapsed .sidebar-label,
.app-sidebar.is-collapsed .sidebar-badge,
.app-sidebar.is-collapsed .sidebar-group-title,
.app-sidebar.is-collapsed .collapse-label,
.app-sidebar.is-collapsed .sidebar-logo a {
  display: none;
}
body.sidebar-collapsed #wrapper {
  margin-left: var(--sidebar-width-collapsed);
}

/* --- Responsive mobile: ẩn hẳn, hiện bằng nút toggle --- */
.sidebar-toggle-mobile {
  display: none;
}

.header-credit-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 13px;
}
.header-user-menu {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 20px;
  padding: 6px 10px;
  margin-left: 10px;
  color: #fff;
}

@media (max-width: 992px) {
  .app-sidebar {
    transform: translateX(-100%);
    width: var(--sidebar-width) !important;
  }
  .app-sidebar.is-open {
    transform: translateX(0);
  }
  #wrapper,
  body.sidebar-collapsed #wrapper {
    margin-left: 0 !important;
  }
  .sidebar-toggle-mobile {
    display: block;
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 1001;
    background: var(--sidebar-bg);
    color: #fff;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    font-size: 18px;
  }
  .sidebar-collapse-toggle {
    display: none;
  } /* không cần thu nhỏ trên mobile */
}