:root {
  --loader-accent: #139af2;
  --loader-primary: #0d73ee;
  --loader-deep: #061f73;
  --loader-glow-rgb: 19, 154, 242;
  --loader-bg: #f4f8ff;
  --loader-surface: rgba(255, 255, 255, 0.82);
  --loader-border: rgba(13, 115, 238, 0.16);
  --loader-text: #2a3f6b;
}

html.app-dark {
  --loader-bg: #080d1c;
  --loader-surface: rgba(14, 22, 44, 0.82);
  --loader-border: rgba(147, 197, 253, 0.18);
  --loader-text: #b8cdee;
}

body {
  margin: 0;
}

.loader-container {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: grid;
  place-items: center;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 42%, rgba(var(--loader-glow-rgb), 0.16), transparent 22rem),
    linear-gradient(145deg, color-mix(in srgb, var(--loader-bg) 94%, var(--loader-primary) 6%), var(--loader-bg));
  transition: opacity 0.5s ease-out;
}

.loader-container::before,
.loader-container::after {
  content: "";
  position: absolute;
  width: 28rem;
  height: 28rem;
  border-radius: 50%;
  background: rgba(var(--loader-glow-rgb), 0.08);
  filter: blur(80px);
  pointer-events: none;
}

.loader-container::before {
  top: -14rem;
  right: -10rem;
}

.loader-container::after {
  bottom: -16rem;
  left: -8rem;
}

.loader {
  position: relative;
  z-index: 1;
  display: flex;
  width: min(24rem, calc(100vw - 3rem));
  flex-direction: column;
  align-items: center;
  gap: 1.35rem;
}

.loader-logo-shell {
  display: grid;
  place-items: center;
  width: 100%;
  min-height: 8rem;
  padding: 1.5rem 2rem;
  box-sizing: border-box;
  overflow: hidden;
  background: var(--loader-surface);
  border: 1px solid var(--loader-border);
  border-radius: 1.5rem;
  box-shadow:
    0 24px 70px rgba(var(--loader-glow-rgb), 0.14),
    inset 0 1px 0 rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  animation: loaderBreathe 2.2s ease-in-out infinite;
}

.loader-logo {
  display: block;
  width: min(18rem, 100%);
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 8px 22px rgba(var(--loader-glow-rgb), 0.16));
}

.loader-logo-dark {
  display: none;
}

html.app-dark .loader-logo-light {
  display: none;
}

html.app-dark .loader-logo-dark {
  display: block;
}

.loader-progress {
  width: min(15rem, 72%);
  height: 0.35rem;
  overflow: hidden;
  background: rgba(var(--loader-glow-rgb), 0.14);
  border-radius: 999px;
}

.loader-progress span {
  display: block;
  width: 45%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--loader-accent), var(--loader-primary), var(--loader-deep));
  box-shadow: 0 0 18px rgba(var(--loader-glow-rgb), 0.5);
  animation: loaderProgress 1.25s ease-in-out infinite;
}

.loading-text {
  margin: 0;
  color: var(--loader-text);
  font-family: Archivo, system-ui, sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

@keyframes loaderBreathe {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

@keyframes loaderProgress {
  0% { transform: translateX(-110%); }
  55% { transform: translateX(85%); }
  100% { transform: translateX(225%); }
}

@media (max-width: 640px) {
  .loader-logo-shell {
    min-height: 7rem;
    padding: 1.25rem 1.5rem;
    border-radius: 1.2rem;
  }

  .loader-logo {
    width: min(15rem, 100%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .loader-logo-shell,
  .loader-progress span {
    animation-duration: 3s;
  }
}