mdui-dialog.oobe-shell-dialog::part(panel) {
  width: min(680px, calc(100vw - 40px));
  height: min(520px, calc(100vh - 40px));
  max-width: calc(100vw - 40px);
  max-height: calc(100vh - 40px);
  padding: 0;
  overflow: hidden;
  background: transparent;
  border-radius: 28px;
}

mdui-dialog.oobe-shell-dialog::part(body) {
  padding: 0;
  margin: 0;
}

.oobe-container {
  width: 100%;
  height: 100%;
  min-height: min(520px, calc(100vh - 40px));
  display: flex;
  flex-direction: column;
  background: rgba(var(--mdui-color-surface), 0.55);
  backdrop-filter: blur(32px) saturate(200%);
  -webkit-backdrop-filter: blur(32px) saturate(200%);
  border: 1px solid rgba(var(--mdui-color-outline-variant), 0.5);
  box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.25);
  border-radius: 28px;
  box-sizing: border-box;
}

.oobe-header {
  padding: 20px 32px 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.oobe-logo-section {
  text-align: center;
  margin-top: 16px;
  margin-bottom: 16px;
}

.oobe-logo-icon {
  font-size: 80px;
  color: rgb(var(--mdui-color-primary));
}

@keyframes oobeFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.oobe-steps-container {
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.oobe-steps-wrapper {
  flex: 1;
  display: flex;
  width: 700%; /* 7 steps */
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.oobe-step {
  width: 14.2857%; /* 1/7th */
  padding: 0 32px 20px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
}

.oobe-title {
  font-size: 22px;
  font-weight: 700;
  color: rgb(var(--mdui-color-on-surface));
  margin-bottom: 8px;
}

.oobe-desc {
  font-size: 13px;
  color: rgb(var(--mdui-color-on-surface-variant));
  line-height: 1.5;
  margin-bottom: 20px;
}

.oobe-content {
  flex: 1;
}

.oobe-scroll {
  overflow-y: auto;
  padding-right: 6px;
}

/* Premium micro scrollbar styling */
.oobe-scroll::-webkit-scrollbar {
  width: 6px;
}
.oobe-scroll::-webkit-scrollbar-track {
  background: transparent;
}
.oobe-scroll::-webkit-scrollbar-thumb {
  background: rgba(var(--mdui-color-primary), 0.2);
  border-radius: 8px;
}
.oobe-scroll::-webkit-scrollbar-thumb:hover {
  background: rgba(var(--mdui-color-primary), 0.45);
}

.oobe-footer {
  padding: 16px 32px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid rgba(var(--mdui-color-outline-variant), 0.2);
}

.oobe-dots {
  display: flex;
  gap: 8px;
}

.oobe-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgb(var(--mdui-color-outline-variant));
  transition: all 0.3s ease;
}

.oobe-dot.active {
  width: 20px;
  border-radius: 4px;
  background: rgb(var(--mdui-color-primary));
}

.oobe-theme-preview {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 16px;
}

.oobe-theme-card {
  padding: 16px;
  border-radius: 16px;
  border: 2px solid transparent;
  cursor: pointer;
  background: rgba(var(--mdui-color-surface-container-highest), 0.6);
  text-align: center;
  transition: all 0.2s ease;
}

.oobe-theme-card.active {
  border-color: rgb(var(--mdui-color-primary));
  background: rgba(var(--mdui-color-primary-container), 0.4);
}

.oobe-theme-card-title {
  font-weight: 600;
  font-size: 14px;
  margin-top: 8px;
  color: rgb(var(--mdui-color-on-surface));
}

.oobe-pref-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: rgba(var(--mdui-color-surface-container-highest), 0.4);
  border-radius: 12px;
  margin-bottom: 12px;
}