#onboarding {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  transition: opacity 300ms ease;
}

#onboarding.ob-gone { opacity: 0; pointer-events: none; }

.ob-card {
  background: var(--panel);
  border: 4px solid var(--line);
  box-shadow: 14px 14px 0 var(--line);
  padding: 2rem 2rem 1.75rem;
  max-width: 420px;
  width: 100%;
  display: grid;
  gap: 0.85rem;
  animation: ob-in 380ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes ob-in {
  from { transform: translateY(24px) scale(0.97); opacity: 0; }
  to   { transform: none; opacity: 1; }
}

.ob-eyebrow {
  display: inline-flex;
  width: fit-content;
  padding: 0.25rem 0.5rem;
  border: 3px solid var(--line);
  background: var(--accent-4);
  box-shadow: 4px 4px 0 var(--line);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-size: 0.7rem;
}

.ob-title {
  font-size: clamp(1.9rem, 6vw, 2.6rem);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.04em;
  text-transform: uppercase;
}

.ob-sub { font-size: 0.95rem; line-height: 1.6; color: #444; }

.ob-btn {
  margin-top: 0.25rem;
  width: 100%;
  padding: 0.9rem 1rem;
  background: var(--accent-3);
  border: 4px solid var(--line);
  box-shadow: 7px 7px 0 var(--line);
  color: var(--ink);
  font-weight: 900;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  cursor: pointer;
  transition: background 100ms, transform 80ms, box-shadow 80ms;
}
.ob-btn:hover  { background: var(--accent-1); }
.ob-btn:active { transform: translate(4px,4px); box-shadow: 3px 3px 0 var(--line); }

.ob-three { display: block; text-align: right; margin-top: 0.5rem; font-style: italic; opacity: 0.7; }

@media (max-width: 480px) { .ob-card { padding: 1.5rem 1.25rem 1.25rem; } }