/* METRIDIUM v2 — Loader */

.loader {
  position: fixed;
  inset: 0;
  z-index: var(--z-loader);
  background: radial-gradient(circle at 50% 40%, rgba(0, 255, 163, 0.08), transparent 50%), var(--void);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.loader.hidden,
.loader.is-done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-glyph {
  width: 120px;
  height: 120px;
  position: relative;
}

.loader-ring {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  animation: spin 3s linear infinite;
}

.loader-dot {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--primary);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: pulse 1.6s ease-in-out infinite;
}

.loader-text {
  font-family: var(--font-mono);
  letter-spacing: 0.35em;
  text-transform: uppercase;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 0.5; transform: translate(-50%, -50%) scale(0.8); }
}