/* ── Lock screen ─────────────────────────────────── */
#lock {
  position: fixed;
  inset: 0;
  z-index: 8000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .9s var(--ease);
}
#lock.visible {
  opacity: 1;
  pointer-events: all;
}

/* Three.js atmospheric canvas */
#lock-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

/* Content layer */
#lock-inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  text-align: center;
}

#lock-name {
  font-family: var(--ff-display);
  font-size: clamp(4.5rem, 20vw, 10rem);
  line-height: .88;
  letter-spacing: .08em;
  color: var(--text);
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .9s var(--ease-out), transform .9s var(--ease-out);
}
#lock-name.vis { opacity: 1; transform: translateY(0); }

#lock-sub {
  font-family: var(--ff-head);
  font-size: clamp(.65rem, 2vw, .8rem);
  letter-spacing: .4em;
  text-transform: uppercase;
  color: var(--muted);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity .7s var(--ease-out) .35s, transform .7s var(--ease-out) .35s;
}
#lock-sub.vis { opacity: 1; transform: translateY(0); }

/* Decorative ember line under name */
#lock-line {
  width: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--ember), transparent);
  box-shadow: 0 0 10px var(--glow);
  transition: width 1s var(--ease-out) .6s;
}
#lock-line.vis { width: clamp(120px, 30vw, 240px); }

/* Scroll prompt */
#scroll-prompt {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .6rem;
  font-family: var(--ff-mono);
  font-size: .65rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: .5rem;
  opacity: 0;
  transition: opacity .7s var(--ease-out) .8s;
}
#scroll-prompt.vis { opacity: 1; }
#scroll-prompt svg { animation: arrowBounce 1.9s ease-in-out infinite; }
@keyframes arrowBounce {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(7px); }
}

/* Dismiss animation */
#lock.dismissing {
  animation: lockDismiss .8s var(--ease-in) forwards;
}
@keyframes lockDismiss {
  0%   { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(-28px); }
}