/* ══════════════════════════════════════════════════════
   ToolHub 5D — Splash / Loading Screen
   Orbiting tool icons + animated progress bar shown
   before the main app becomes interactive.
   ══════════════════════════════════════════════════════ */

#splash-screen {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: radial-gradient(ellipse at 50% 30%, #14122e 0%, #06060f 60%, #020208 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}
#splash-screen.splash-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* Starfield */
#splash-screen .splash-stars {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1.5px 1.5px at 20% 30%, rgba(255,255,255,0.6), transparent),
    radial-gradient(1.5px 1.5px at 70% 20%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1px 1px at 40% 70%, rgba(255,255,255,0.45), transparent),
    radial-gradient(1.5px 1.5px at 85% 60%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1px 1px at 10% 85%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1.5px 1.5px at 60% 90%, rgba(255,255,255,0.5), transparent);
  background-size: 100% 100%;
  opacity: 0.8;
}

/* Orbit zone holding center cube + 8 ring icons */
.splash-orbit {
  position: relative;
  width: 280px;
  height: 280px;
  margin-bottom: 1.25rem;
  flex-shrink: 0;
}

.splash-center {
  position: absolute;
  top: 50%; left: 50%;
  width: 120px; height: 120px;
  transform: translate(-50%, -50%);
  border: 2px solid rgba(139,92,246,0.55);
  background: linear-gradient(135deg, rgba(99,102,241,0.18), rgba(236,72,153,0.18));
  border-radius: 18px;
  display: flex; align-items: center; justify-content: center;
  font-size: 2.6rem;
  box-shadow: 0 0 40px rgba(139,92,246,0.55), inset 0 0 30px rgba(99,102,241,0.25);
  animation: splash-pulse 2.4s ease-in-out infinite;
}
@keyframes splash-pulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); box-shadow: 0 0 40px rgba(139,92,246,0.55), inset 0 0 30px rgba(99,102,241,0.25); }
  50%      { transform: translate(-50%, -50%) scale(1.06); box-shadow: 0 0 60px rgba(236,72,153,0.6), inset 0 0 35px rgba(236,72,153,0.3); }
}

/* The rotating ring that carries all 8 icons around the center */
.splash-ring {
  position: absolute;
  inset: 0;
  animation: splash-spin 18s linear infinite;
}
@keyframes splash-spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.splash-icon {
  position: absolute;
  top: 50%; left: 50%;
  width: 56px; height: 56px;
  margin: -28px 0 0 -28px;
  border-radius: 14px;
  background: rgba(13,13,35,0.9);
  border: 1.5px solid var(--icon-color, #6366f1);
  box-shadow: 0 0 16px var(--icon-color, #6366f1);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  /* counter-rotate so the icon glyph itself stays upright while orbiting */
  animation: splash-counter-spin 18s linear infinite;
  transform: rotate(var(--angle)) translate(140px) rotate(calc(-1 * var(--angle)));
}
@keyframes splash-counter-spin {
  from { transform: rotate(var(--angle)) translate(140px) rotate(calc(-1 * var(--angle))); }
  to   { transform: rotate(calc(var(--angle) + 360deg)) translate(140px) rotate(calc(-1 * (var(--angle) + 360deg))); }
}

.splash-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 9vw, 2.8rem);
  letter-spacing: 1px;
  background: linear-gradient(90deg, #818cf8, #ec4899 55%, #38bdf8);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.4rem;
  text-align: center;
}

.splash-tagline {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: clamp(0.95rem, 4vw, 1.15rem);
  color: #a5b4fc;
  margin-bottom: 0.3rem;
  text-align: center;
  padding: 0 1rem;
}

.splash-sub {
  font-size: 0.85rem;
  color: var(--text3, #6b7280);
  margin-bottom: 1.4rem;
  text-align: center;
  padding: 0 1rem;
}

.splash-features {
  display: flex;
  gap: 1.6rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  justify-content: center;
  padding: 0 1rem;
}
.splash-feature { display: flex; flex-direction: column; align-items: center; gap: 0.35rem; }
.splash-feature-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  border: 1.5px solid var(--f-color);
  color: var(--f-color);
  box-shadow: 0 0 14px color-mix(in srgb, var(--f-color) 50%, transparent);
}
.splash-feature-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--f-color);
}

.splash-progress-wrap { width: min(320px, 80vw); text-align: center; }
.splash-loading-text {
  font-size: 0.72rem;
  letter-spacing: 3px;
  color: var(--text2, #9ca3c8);
  margin-bottom: 0.6rem;
}
.splash-progress-track {
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: rgba(99,102,241,0.15);
  overflow: hidden;
  margin-bottom: 0.5rem;
}
.splash-progress-fill {
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: linear-gradient(90deg, #3b82f6, #818cf8 50%, #ec4899);
  box-shadow: 0 0 12px rgba(139,92,246,0.7);
  transition: width 0.18s ease-out;
}
.splash-percent { font-size: 0.85rem; font-weight: 700; color: var(--text, #e8e8ff); }

.splash-powered {
  margin-top: 1.4rem;
  font-size: 0.75rem;
  color: var(--text3, #6b7280);
  padding: 5px 16px;
  border: 1px solid rgba(139,92,246,0.4);
  border-radius: 999px;
}
.splash-powered b { color: #ec4899; }

@media (max-width: 480px) {
  .splash-orbit { width: 230px; height: 230px; }
  .splash-center { width: 96px; height: 96px; font-size: 2.1rem; }
  .splash-icon { width: 46px; height: 46px; margin: -23px 0 0 -23px; font-size: 1.25rem; transform: rotate(var(--angle)) translate(112px) rotate(calc(-1 * var(--angle))); }
  @keyframes splash-counter-spin {
    from { transform: rotate(var(--angle)) translate(112px) rotate(calc(-1 * var(--angle))); }
    to   { transform: rotate(calc(var(--angle) + 360deg)) translate(112px) rotate(calc(-1 * (var(--angle) + 360deg))); }
  }
  .splash-features { gap: 1.1rem; }
}

@media (prefers-reduced-motion: reduce) {
  .splash-ring, .splash-icon, .splash-center { animation: none !important; }
}