/* --- System Boot Loader --- */
.loader-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  bottom: 0;
  background-color: var(--bg-color);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.6s cubic-bezier(0.85, 0, 0.15, 1), opacity 0.6s ease;
}

.loader-overlay.hidden {
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
}

.loader-box {
  border: 4px solid var(--border-color);
  border-radius: var(--border-radius);
  background-color: var(--card-bg);
  box-shadow: 12px 12px 0px var(--border-color);
  padding: 40px;
  text-align: center;
  width: 90%;
  max-width: 400px;
}

.loader-box h2 {
  font-size: 2rem;
  color: var(--text-main);
  margin-bottom: 24px;
}

.loader-bar {
  width: 100%;
  height: 24px;
  background-color: var(--bg-color);
  border: 2px solid var(--border-color);
  border-radius: calc(var(--border-radius) / 2);
  position: relative;
  overflow: hidden;
}

.loader-progress {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0%;
  background-color: var(--accent-primary);
  border-right: 2px solid var(--border-color);
  animation: boot-load 0.8s var(--transition-bounce) forwards;
}

@keyframes boot-load {
  0% { width: 0%; }
  30% { width: 25%; }
  60% { width: 60%; }
  80% { width: 75%; }
  100% { width: 100%; }
}