frontend/src/components/Onboarding.css

.onboarding-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  animation: ob-fade 0.5s ease;
}

@keyframes ob-fade {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.onboarding-modal {
  width: 90%;
  max-width: 500px;
  display: flex;
  flex-direction: column;
  padding: 40px;
  border-radius: var(--radius-lg);
  background: var(--bg-1);
  border: 1px solid var(--border-1);
  box-shadow: 0 0 40px rgba(0, 0, 0, 0.5);
  position: relative;
  overflow: hidden;
}

.onboarding-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
}

.step-indicator {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--text-2);
}

.close-btn {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--text-2);
  cursor: pointer;
  line-height: 1;
  transition: color 0.2s ease;
}

.close-btn:hover {
  color: var(--pulse);
}

.onboarding-body {
  flex: 1;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.step-icon {
  font-size: 3.5rem;
  margin-bottom: 10px;
}

.onboarding-body h2 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-0);
}

.onboarding-body p {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-1);
}

.onboarding-footer {
  margin-top: 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.onboarding-btn {
  padding: 10px 24px;
}

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

.step-dots .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--bg-3);
  transition: all 0.3s ease;
}

.step-dots .dot.active {
  background: var(--pulse);
  box-shadow: var(--glow-pulse);
  transform: scale(1.2);
}

.neural-scan-line {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--pulse);
  box-shadow: 0 0 10px var(--pulse);
  opacity: 0.3;
  animation: scan 4s linear infinite;
}

@keyframes scan {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(500px); }
}