/* Adapted from ShadUI's browser demo splash screen under the MIT License. */
:root {
  color-scheme: light dark;
  font-family: "Avenir Next", Avenir, "Segoe UI Variable", "Segoe UI", ui-sans-serif, system-ui, sans-serif;
  background: #f7f6f8;
  --background: #f7f6f8;
  --foreground: #18161b;
  --muted: #77717d;
  --faint: #a19ba5;
  --track: rgb(33 27 38 / 9%);
  --accent: #8359e6;
}

* { box-sizing: border-box; }

html,
body,
#out {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
}

body { background: var(--background); }

.splash {
  position: absolute;
  inset: 0;
  display: flex;
  min-height: 100dvh;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: clamp(96px, 14vh, 148px) clamp(24px, 5vw, 72px) 112px;
  color: var(--foreground);
  background: var(--background);
}

.splash::before {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgb(70 58 75 / 10%) 0.65px, transparent 0.8px);
  background-size: 18px 18px;
  content: "";
  -webkit-mask-image: radial-gradient(circle at center, black, transparent 68%);
  mask-image: radial-gradient(circle at center, black, transparent 68%);
  opacity: 0.52;
  pointer-events: none;
}

.splash-header {
  position: absolute;
  top: max(28px, env(safe-area-inset-top));
  right: clamp(24px, 5vw, 72px);
  left: clamp(24px, 5vw, 72px);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-lockup { display: flex; align-items: center; gap: 11px; }
.brand-logo { width: 29px; height: 29px; filter: drop-shadow(0 8px 12px rgb(92 48 105 / 18%)); }
.brand-name { font-size: 16px; font-weight: 650; letter-spacing: 0; }
.edition { color: var(--muted); font-size: 12px; font-weight: 600; letter-spacing: 0; }

.loading-state {
  position: relative;
  width: min(480px, 100%);
  animation: reveal 650ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.loading-mark {
  display: flex;
  height: 28px;
  align-items: flex-end;
  gap: 4px;
  margin-bottom: 34px;
}

.loading-mark span {
  width: 4px;
  border-radius: 4px;
  background: var(--accent);
  animation: equalize 1.4s ease-in-out infinite;
  transform-origin: bottom;
}

.loading-mark span:nth-child(1) { height: 12px; animation-delay: -0.4s; }
.loading-mark span:nth-child(2) { height: 22px; animation-delay: -0.2s; }
.loading-mark span:nth-child(3) { height: 17px; animation-delay: 0s; }
.loading-mark span:nth-child(4) { height: 8px; animation-delay: -0.6s; }

.eyebrow,
.status,
.progress-meta,
.runtime { margin: 0; }

.eyebrow {
  margin-bottom: 14px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.loading-state h1 {
  max-width: 460px;
  margin: 0;
  font-size: 52px;
  font-weight: 620;
  letter-spacing: 0;
  line-height: 1.02;
  overflow-wrap: break-word;
  text-wrap: balance;
}

.status {
  max-width: 420px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
  text-wrap: pretty;
}

.progress {
  position: relative;
  height: 2px;
  margin-top: 38px;
  overflow: hidden;
  border-radius: 2px;
  background: var(--track);
}

.progress span {
  position: absolute;
  inset: 0 auto 0 0;
  width: 38%;
  border-radius: inherit;
  background: var(--accent);
  animation: progress 1.8s cubic-bezier(0.65, 0, 0.35, 1) infinite;
  transform-origin: left;
}

.progress-meta {
  display: flex;
  justify-content: space-between;
  margin-top: 12px;
  color: var(--faint);
  font-size: 11px;
  font-weight: 560;
  letter-spacing: 0;
}

.runtime {
  position: absolute;
  right: clamp(24px, 5vw, 72px);
  bottom: max(28px, env(safe-area-inset-bottom));
  left: clamp(24px, 5vw, 72px);
  display: flex;
  gap: 24px;
  color: var(--faint);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: uppercase;
}

.runtime span:last-child { margin-left: auto; }
.splash.splash-close,
.avalonia-container > .splash { display: none; }

@keyframes reveal {
  from { opacity: 0; transform: translateY(12px); }
}

@keyframes equalize {
  0%, 100% { transform: scaleY(0.46); }
  50% { transform: scaleY(1); }
}

@keyframes progress {
  0% { transform: translateX(-105%) scaleX(0.55); }
  48% { transform: translateX(94%) scaleX(1); }
  100% { transform: translateX(270%) scaleX(0.55); }
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #0d0c0f;
    --foreground: #f4f1f5;
    --muted: #a29ca6;
    --faint: #716b75;
    --track: rgb(244 241 245 / 11%);
    --accent: #a889ee;
  }

  .splash::before {
    background-image: radial-gradient(circle, rgb(231 220 235 / 10%) 0.65px, transparent 0.8px);
    opacity: 0.36;
  }
}

@media (max-width: 560px) {
  .splash { align-items: flex-start; padding-top: 31vh; }
  .edition { font-size: 11px; }
  .loading-mark { margin-bottom: 28px; }
  .loading-state h1 { font-size: 34px; }
  .status { max-width: 330px; }
  .runtime { gap: 14px; }
  .runtime span:nth-child(2) { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .loading-state { animation: none; }
  .loading-mark span { animation: none; transform: none; }
  .progress span { width: 42%; animation: none; }
}