/* ─── Loading Screen ────────────────────────────────────────────────────────── */
#loading-screen {
  position: fixed;
  inset: 0;
  z-index: var(--z-loading);
  background: var(--bg-base);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  overflow: hidden;
}

#loading-screen::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(90,174,255,0.1) 0%, transparent 65%);
  pointer-events: none;
  animation: loading-pulse-bg 3s ease-in-out infinite;
}

@keyframes loading-pulse-bg {
  0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
  50%       { opacity: 1;   transform: translate(-50%, -50%) scale(1.1); }
}

/* Grid lines decoration */
#loading-screen::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(90,174,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(90,174,255,0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
}

.loading-logo-wrap {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  z-index: 1;
  opacity: 0;
  transform: scale(0.8);
}

.loading-logo-img {
  width: 90px;
  height: 90px;
  max-width: 90px;
  max-height: 90px;
  object-fit: contain;
  filter: drop-shadow(0 0 24px var(--accent-glow));
}

.loading-logo-icon {
  width: 90px;
  height: 90px;
  border: 2px solid var(--accent);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-glow);
  position: relative;
  overflow: hidden;
}
.loading-logo-icon::before {
  content: 'GRP';
  font-family: var(--font-primary);
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--accent);
  letter-spacing: 0.05em;
}
.loading-logo-icon::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent 30%,
    rgba(90,174,255,0.15) 50%,
    transparent 70%
  );
  animation: loading-shine 2s linear infinite;
}

@keyframes loading-shine {
  from { transform: translateX(-100%) rotate(0deg); }
  to   { transform: translateX(100%) rotate(0deg); }
}

.loading-server-name {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.loading-server-name span {
  color: var(--accent);
}

.loading-tagline {
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ─── Progress bar ───────────────────────────────────────────────────────────── */
.loading-progress-wrap {
  width: 280px;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  opacity: 0;
}

.loading-progress-bar {
  width: 100%;
  height: 3px;
  background: rgba(90,174,255,0.1);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.loading-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-dim), var(--accent), #a0d0ff);
  border-radius: var(--radius-full);
  box-shadow: 0 0 10px var(--accent-glow);
  transition: none;
}

.loading-status-text {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-align: center;
}

/* ─── Scanline effect ────────────────────────────────────────────────────────── */
.loading-scanlines {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.1) 2px,
    rgba(0,0,0,0.1) 4px
  );
  pointer-events: none;
  z-index: 2;
  opacity: 0.3;
}

/* ─── Exit animation class ───────────────────────────────────────────────────── */
#loading-screen.exit {
  pointer-events: none;
}