/* ── Verdon Startup Loading Screen ── */

/* Full-screen overlay */
#app-startup-loader {
  position: fixed;
  inset: 0;
  z-index: 12000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
  background:
    radial-gradient(ellipse at 50% 40%, rgba(99, 102, 241, 0.08) 0%, transparent 60%),
    #121212;
  opacity: 1;
  visibility: visible;
  transition: opacity 500ms ease, visibility 500ms ease;
}

/* Light mode variant */
#app-startup-loader.loader-light {
  background:
    radial-gradient(ellipse at 50% 40%, rgba(99, 102, 241, 0.06) 0%, transparent 60%),
    #f4f3ef;
}

/* Hidden state */
#app-startup-loader.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* ── SVG Logo ── */
.loader-logo {
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
  animation: logo-drift 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  transition: transform 700ms cubic-bezier(0.16, 1, 0.3, 1), opacity 700ms cubic-bezier(0.16, 1, 0.3, 1);
}

#app-startup-loader.is-hidden .loader-logo {
  animation: none;
  transform: scale(2.5);
  opacity: 0;
}

.loader-logo-path {
  fill: none;
  stroke: rgba(255, 255, 255, 0.9);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 120;
  stroke-dashoffset: 120;
  animation: logo-draw 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

#app-startup-loader.loader-light .loader-logo-path {
  stroke: rgba(15, 15, 20, 0.85);
}

@keyframes logo-draw {
  to {
    stroke-dashoffset: 0;
  }
}

/* ── Brand Text ── */
.loader-brand {
  font-family: 'IBM Plex Sans', 'DM Sans', system-ui, sans-serif;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.88);
  opacity: 0;
  transform: translateY(6px);
  animation: brand-fade-in 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards 0.2s;
}

#app-startup-loader.loader-light .loader-brand {
  color: rgba(15, 15, 20, 0.82);
}

#app-startup-loader.is-hidden .loader-brand {
  animation: none;
  opacity: 0;
  transform: translateY(15px);
  transition: opacity 500ms cubic-bezier(0.16, 1, 0.3, 1), transform 500ms cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes brand-fade-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes logo-drift {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}