:root {
  color-scheme: light;
  --bg: #f6f8fb;
  --surface: #ffffff;
  --text: #18232f;
  --muted: #667789;
  --accent: #3194af;
  --accent-soft: #d9eef4;
  --ring: rgba(49, 148, 175, 0.2);
  --shadow: 0 22px 70px rgba(25, 42, 58, 0.12);
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #101820;
    --surface: #16222d;
    --text: #eef4f8;
    --muted: #9fb0bd;
    --accent: #3194af;
    --accent-soft: #21444e;
    --ring: rgba(49, 148, 175, 0.26);
    --shadow: 0 22px 70px rgba(0, 0, 0, 0.38);
  }
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(49, 148, 175, 0.08), transparent 34rem),
    linear-gradient(135deg, #f9fbfd 0%, var(--bg) 46%, #eef3f7 100%);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.5;
}

@media (prefers-color-scheme: dark) {
  body {
    background:
      radial-gradient(circle at top left, rgba(49, 148, 175, 0.14), transparent 34rem),
      linear-gradient(135deg, #0c1218 0%, var(--bg) 48%, #14212b 100%);
  }
}

.loading-page {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 24px;
}

.loading-panel {
  display: grid;
  width: min(100%, 420px);
  min-height: 300px;
  place-items: center;
  gap: 28px;
  border: 1px solid rgba(102, 119, 137, 0.18);
  border-radius: 8px;
  padding: 44px 32px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow);
  text-align: center;
}

@media (prefers-color-scheme: dark) {
  .loading-panel {
    border-color: rgba(159, 176, 189, 0.2);
    background: rgba(22, 34, 45, 0.88);
  }
}

.spinner {
  width: 56px;
  height: 56px;
  border: 4px solid var(--accent-soft);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

.loading-panel[data-state="completed"] .spinner {
  animation: none;
  border-color: var(--accent);
}

.loading-panel[data-state="error"] .spinner {
  animation: none;
  border-color: #c94b4b;
}

.loading-panel[data-state="error"] .status {
  color: #c94b4b;
}

.copy {
  display: grid;
  gap: 8px;
}

h1,
p {
  margin: 0;
}

h1 {
  font-size: clamp(1.65rem, 7vw, 2.25rem);
  line-height: 1.12;
  letter-spacing: 0;
}

.status {
  color: var(--accent);
  font-size: 1rem;
  font-weight: 700;
}

.description {
  color: var(--muted);
  font-size: 0.98rem;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .spinner {
    animation: none;
    box-shadow: 0 0 0 8px var(--ring);
  }
}

@media (max-width: 420px) {
  .loading-page {
    padding: 16px;
  }

  .loading-panel {
    min-height: 260px;
    padding: 34px 22px;
  }
}