.ieos-intro-overlay {
  position: fixed; inset: 0; z-index: 99999;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex; justify-content: flex-end;
  opacity: 0; pointer-events: none; transition: opacity .2s ease;
}
.ieos-intro-overlay.is-open { opacity: 1; pointer-events: auto; }
.ieos-intro-panel {
  width: min(400px, 100%);
  height: 100%;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-left: 1px solid rgba(255,255,255,0.6);
  box-shadow: -12px 0 40px rgba(15,23,42,.15);
  padding: 24px 20px 32px;
  transform: translateX(100%);
  transition: transform .25s ease;
  overflow-y: auto;
}
.ieos-intro-overlay.is-open .ieos-intro-panel { transform: translateX(0); }
.ieos-intro-panel h3 { margin: 0 0 8px; font-size: 1.2rem; color: #0f172a; }
.ieos-intro-panel p { margin: 0 0 14px; color: #64748b; font-size: 14px; line-height: 1.45; }
.ieos-intro-panel label { display: block; font-size: 12px; font-weight: 700; color: #475569; margin: 10px 0 4px; }
.ieos-intro-panel input, .ieos-intro-panel textarea, .ieos-intro-panel select {
  width: 100%; box-sizing: border-box; border: 1px solid #e2e8f0; border-radius: 12px;
  padding: 10px 12px; font-size: 16px; background: #fff;
}
.ieos-intro-actions { display: flex; gap: 8px; margin-top: 16px; }
.ieos-intro-actions button {
  flex: 1; min-height: 44px; border-radius: 12px; border: 0; font-weight: 700; cursor: pointer;
}
.ieos-intro-submit { background: #dc2626; color: #fff; }
.ieos-intro-cancel { background: #f1f5f9; color: #334155; }
.ieos-intro-msg { margin-top: 12px; font-size: 13px; font-weight: 600; }
@media (max-width: 560px) {
  .ieos-intro-panel { width: 100%; }
}