:root {
  --loading-ink: #15313a;
  --loading-muted: #627a7d;
  --loading-teal: #17687a;
  --loading-teal-soft: #69b6aa;
  --loading-amber: #d99843;
  --loading-error: #a44739;
  --loading-ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --loading-ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);
}

body:not([data-bootstrap-phase="ready"]) #app > :not(.loading-experience) {
  visibility: hidden;
}

.loading-experience {
  --loading-progress: 12%;
  --loading-idle-fill: 0%;
  --loading-billions-fill: 0%;
  position: fixed;
  z-index: 10000;
  inset: 0;
  display: grid;
  min-width: 18rem;
  min-height: 100dvh;
  overflow: hidden;
  place-items: center;
  padding:
    max(1.25rem, env(safe-area-inset-top))
    max(1rem, env(safe-area-inset-right))
    max(1.25rem, env(safe-area-inset-bottom))
    max(1rem, env(safe-area-inset-left));
  color: var(--loading-ink);
  text-align: center;
  background:
    radial-gradient(circle at 16% 10%, rgba(255, 251, 235, 0.98), transparent 34%),
    radial-gradient(circle at 84% 84%, rgba(170, 224, 211, 0.48), transparent 36%),
    linear-gradient(145deg, #f6f5eb 0%, #edf4f1 54%, #e0ece9 100%);
  isolation: isolate;
  opacity: 1;
  transition: opacity 90ms ease;
}

.loading-experience::before,
.loading-experience::after {
  position: absolute;
  z-index: -1;
  content: "";
  pointer-events: none;
}

.loading-experience::before {
  top: -18vmin;
  left: -12vmin;
  width: 48vmin;
  min-width: 18rem;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.82), transparent 68%);
}

.loading-experience::after {
  right: -12vmin;
  bottom: -20vmin;
  width: 52vmin;
  min-width: 20rem;
  aspect-ratio: 1;
  border: 1px solid rgba(23, 104, 122, 0.08);
  border-radius: 50%;
  box-shadow:
    0 0 0 4vmin rgba(255, 255, 255, 0.1),
    0 0 0 9vmin rgba(23, 104, 122, 0.025);
}

.loading-experience[hidden] {
  display: none;
}

.loading-experience.is-exiting {
  opacity: 0;
  pointer-events: none;
}

.loading-experience-inner {
  display: grid;
  width: min(90vw, 27rem);
  max-height: 100%;
  place-items: center;
  gap: clamp(0.82rem, 2vh, 1.1rem);
}

.loading-copy {
  display: grid;
  place-items: center;
  gap: 0.68rem;
}

.loading-brand-mark {
  position: relative;
  width: min(22rem, 78vw);
  aspect-ratio: 768 / 550;
  isolation: isolate;
}

.loading-brand-layer {
  position: absolute;
  inset: 0;
  background-position: center;
  background-repeat: no-repeat;
  background-size: 100% 100%;
  pointer-events: none;
  -webkit-mask: url("/assets/brand/idle-billions-loading-logo.webp") center / 100% 100% no-repeat;
  mask: url("/assets/brand/idle-billions-loading-logo.webp") center / 100% 100% no-repeat;
}

.loading-brand-layer--base {
  background: linear-gradient(180deg, #ffffff 0%, #eef4f2 76%, #dce7e4 100%);
  filter:
    drop-shadow(0 0 0.065rem rgba(21, 49, 58, 0.5))
    drop-shadow(0 1px 0 rgba(255, 255, 255, 0.96))
    drop-shadow(0 0.38rem 0.42rem rgba(28, 61, 65, 0.24));
}

.loading-brand-layer--idle-depth {
  background-image: url("/assets/brand/idle-billions-loading-logo.webp");
  clip-path: inset(0 0 34.4% 0);
  mix-blend-mode: multiply;
  opacity: 0.16;
}

.loading-brand-layer--city {
  background-image: url("/assets/brand/idle-billions-loading-logo.webp");
  clip-path: inset(
    0
    calc(100% - var(--loading-idle-fill))
    34.4%
    0
  );
  transition: clip-path 420ms var(--loading-ease-in-out);
}

.loading-brand-layer--money {
  background-color: #2f8f52;
  background-image: url("/assets/ui/loading-money-pattern.svg");
  background-repeat: repeat;
  background-size: 4.6rem auto;
  clip-path: inset(
    65.6%
    calc(100% - var(--loading-billions-fill))
    0
    0
  );
  filter: saturate(0.92) contrast(1.04);
  transition: clip-path 420ms var(--loading-ease-in-out);
}

.loading-brand-layer--depth {
  background-image: url("/assets/brand/idle-billions-loading-logo.webp");
  clip-path: inset(65.6% 0 0 0);
  mix-blend-mode: multiply;
  opacity: 0.48;
}

.loading-status-row {
  display: grid;
  min-width: min(17rem, 76vw);
  place-items: center;
  padding: 0.48rem 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.82);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.46);
  box-shadow:
    0 0.45rem 1.4rem rgba(51, 83, 80, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.92);
}

.loading-status {
  margin: 0;
  color: var(--loading-muted);
  font-family:
    Inter,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    "PingFang SC",
    sans-serif;
  font-size: clamp(0.75rem, 1.8vw, 0.84rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.loading-progress {
  display: grid;
  width: min(22rem, 78vw);
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.78rem;
}

.loading-progress svg {
  display: block;
  width: 100%;
  height: 1.4rem;
  overflow: visible;
}

.loading-progress-track,
.loading-progress-fill {
  fill: none;
  stroke-linecap: round;
  vector-effect: non-scaling-stroke;
}

.loading-progress-track {
  stroke: rgba(23, 104, 122, 0.15);
  stroke-width: 3.2;
}

.loading-progress-fill {
  stroke: var(--loading-teal);
  stroke-width: 3.2;
  transition: stroke-dashoffset 220ms var(--loading-ease-out);
}

.loading-progress-node {
  fill: rgba(255, 255, 255, 0.94);
  stroke: rgba(23, 104, 122, 0.3);
  stroke-width: 0.9;
}

.loading-progress-orb {
  fill: #fffdf4;
  stroke: var(--loading-amber);
  stroke-width: 1.25;
  transition:
    cx 220ms var(--loading-ease-out),
    cy 220ms var(--loading-ease-out);
}

.loading-percent {
  min-width: 3ch;
  color: var(--loading-teal);
  font-family:
    "SFMono-Regular",
    "Cascadia Mono",
    Consolas,
    monospace;
  font-size: 0.82rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  text-align: right;
}

.loading-detail {
  max-width: min(30rem, 84vw);
  margin: 0.1rem 0 0;
  color: var(--loading-muted);
  font: 0.78rem/1.55 Inter, "PingFang SC", sans-serif;
}

.loading-retry {
  min-height: 2.5rem;
  margin-top: 0.2rem;
  padding: 0.55rem 1.15rem;
  border: 1px solid rgba(164, 71, 57, 0.34);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.76);
  color: var(--loading-error);
  cursor: pointer;
  font: 600 0.8rem/1 Inter, "PingFang SC", sans-serif;
  transition:
    background-color 160ms var(--loading-ease-out),
    border-color 160ms var(--loading-ease-out),
    transform 160ms var(--loading-ease-out);
}

.loading-retry:hover {
  border-color: rgba(164, 71, 57, 0.58);
  background: rgba(255, 255, 255, 0.94);
  transform: translateY(-1px);
}

.loading-retry:focus-visible {
  outline: 3px solid rgba(164, 71, 57, 0.22);
  outline-offset: 3px;
}

.loading-retry[hidden] {
  display: none;
}

.loading-experience.is-error .loading-progress-fill,
.loading-experience.is-error .loading-progress-orb {
  stroke: var(--loading-error);
}

.loading-experience.is-error .loading-status,
.loading-experience.is-error .loading-percent {
  color: var(--loading-error);
}

@media (max-width: 42rem) {
  .loading-experience-inner {
    width: min(90vw, 23rem);
    gap: clamp(0.76rem, 1.8vh, 0.98rem);
  }

  .loading-brand-mark {
    width: min(19rem, 80vw);
  }

  .loading-status-row {
    min-width: min(16rem, 78vw);
  }

  .loading-progress {
    width: min(20rem, 78vw);
  }
}

@media (max-height: 38rem) and (orientation: landscape) {
  .loading-experience-inner {
    width: min(90vw, 30rem);
    gap: 0.5rem;
  }

  .loading-brand-mark {
    width: min(17rem, 42vw);
  }
}

@media (prefers-reduced-motion: reduce) {
  .loading-experience,
  .loading-progress-fill,
  .loading-progress-orb {
    animation: none;
    transition-duration: 100ms;
  }

  .loading-brand-layer--city,
  .loading-brand-layer--money {
    transition-duration: 100ms;
  }
}

@media (prefers-reduced-transparency: reduce) {
  .loading-status-row {
    background: #f8fbf9;
  }
}