.stealth-overlay {
  position: fixed; inset: 0; z-index: 99999;
  background: rgba(0,0,0,0.55);
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
}
.stealth-dialog {
  background: #fff; color: #111;
  max-width: 760px; width: 100%;
  border-radius: 16px;
  padding: 24px 28px 20px;
  position: relative;
  font-family: Inter, system-ui, -apple-system, sans-serif;
  max-height: 92vh; overflow-y: auto;
}
.stealth-dialog h2 { margin: 0 0 8px; font-size: 1.25rem; }
.stealth-intro { margin: 0 0 16px; font-size: 0.9rem; color: #555; line-height: 1.4; }
.stealth-close {
  position: absolute; top: 8px; right: 8px;
  background: transparent; border: 0; font-size: 28px; line-height: 1;
  width: 36px; height: 36px; cursor: pointer; color: #666;
  border-radius: 8px;
}
.stealth-close:hover { background: #f3f4f6; color: #111; }
.stealth-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}
.stealth-opt {
  background: #fafafa; border: 2px solid transparent;
  border-radius: 12px;
  padding: 12px 8px; cursor: pointer;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  font: inherit; color: #111;
  transition: border-color .12s, background .12s;
}
.stealth-opt:hover { background: #f3f4f6; }
.stealth-opt.is-active { border-color: #F5A9B8; background: #fff5f7; }
.stealth-icon {
  width: 64px; height: 64px; border-radius: 12px;
  background: #e5e7eb;
  object-fit: cover;
  display: block;
}
.stealth-icon-default {
  background: linear-gradient(135deg, #F5A9B8 0%, #5BCEFA 100%);
}
.stealth-opt span {
  font-size: 0.85rem; font-weight: 600; text-align: center;
  display: flex; flex-direction: column; line-height: 1.2;
}
.stealth-opt small { font-size: 0.7rem; font-weight: 400; color: #888; }
.stealth-note {
  margin: 0; font-size: 0.78rem; color: #555;
  background: #fef9c3; padding: 10px 12px; border-radius: 8px; line-height: 1.4;
}
.stealth-note strong { color: #92400e; }
.stealth-note.stealth-note-info { background: #e0f2fe; color: #075985; }
.stealth-note.stealth-note-info strong { color: #0c4a6e; }

.stealth-actions { display: flex; flex-direction: column; gap: 8px; margin-top: 8px; }
.stealth-btn-primary, .stealth-btn-secondary {
  font: inherit; font-weight: 600;
  padding: 12px 16px; border-radius: 10px;
  border: 0; cursor: pointer; width: 100%;
  font-size: 0.95rem;
}
.stealth-btn-primary { background: #F5A9B8; color: #111; }
.stealth-btn-primary:hover { background: #f7b8c4; }
.stealth-btn-secondary { background: #f3f4f6; color: #111; }
.stealth-btn-secondary:hover { background: #e5e7eb; }

.stealth-steps { margin: 8px 0 16px; padding-left: 22px; font-size: 0.9rem; line-height: 1.5; color: #333; }
.stealth-steps li { margin-bottom: 8px; }
.stealth-h3 { font-size: 0.95rem; margin: 14px 0 6px; color: #111; }
.stealth-dialog code { background: #f3f4f6; padding: 1px 5px; border-radius: 4px; font-size: 0.85em; }

.stealth-install-preview {
  display: flex; align-items: center; gap: 12px;
  background: #f9fafb;
  border-radius: 12px;
  padding: 12px 14px;
  margin-bottom: 12px;
}
.stealth-install-icon { width: 56px; height: 56px; border-radius: 12px; }
.stealth-install-name { font-weight: 600; font-size: 1rem; }

@media (prefers-color-scheme: dark) {
  .stealth-dialog { background: #1f2937; color: #f3f4f6; }
  .stealth-intro { color: #9ca3af; }
  .stealth-close { color: #9ca3af; }
  .stealth-close:hover { background: #374151; color: #f3f4f6; }
  .stealth-opt { background: #111827; color: #f3f4f6; }
  .stealth-opt:hover { background: #374151; }
  .stealth-opt.is-active { border-color: #F5A9B8; background: #3b1d29; }
  .stealth-opt small { color: #9ca3af; }
  .stealth-note { background: #422006; color: #fde68a; }
  .stealth-note strong { color: #fbbf24; }
  .stealth-btn-secondary { background: #374151; color: #f3f4f6; }
  .stealth-btn-secondary:hover { background: #4b5563; }
  .stealth-steps { color: #d1d5db; }
  .stealth-install-preview { background: #111827; }
  .stealth-h3 { color: #f3f4f6; }
  .stealth-dialog code { background: #374151; color: #f3f4f6; }
  .stealth-note.stealth-note-info { background: #082f49; color: #bae6fd; }
  .stealth-note.stealth-note-info strong { color: #7dd3fc; }
}