:root {
  --accent: #52b788;
  --accent-hover: color-mix(in srgb, var(--accent) 88%, #000);
  color-scheme: light dark;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  padding: 1.25rem 1rem 2rem;
  font-family:
    system-ui,
    -apple-system,
    Segoe UI,
    Roboto,
    sans-serif;
  line-height: 1.5;
  color: CanvasText;
  background:
    radial-gradient(circle at top, color-mix(in srgb, var(--accent) 12%, Canvas) 0%, transparent 55%),
    Canvas;
}

.site-header {
  width: min(100%, 36rem);
  margin: 0 auto 1.25rem;
}

.site-header-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  color: inherit;
}

.site-header-brand:focus-visible {
  outline: none;
  border-radius: 8px;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);
}

.site-header-icon {
  display: block;
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.site-header-title {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.page {
  width: min(100%, 36rem);
  margin: 0 auto;
}

.card {
  border: 1px solid color-mix(in srgb, CanvasText 15%, transparent);
  border-radius: 12px;
  background: color-mix(in srgb, CanvasText 2%, Canvas);
  box-shadow: 0 12px 32px color-mix(in srgb, CanvasText 10%, transparent);
  overflow: hidden;
}

.card-header {
  padding: 1.25rem 1.5rem 1rem;
  border-bottom: 1px solid color-mix(in srgb, CanvasText 12%, transparent);
  background: color-mix(in srgb, var(--accent) 6%, Canvas);
}

h1 {
  margin: 0;
  font-size: 1.375rem;
  line-height: 1.3;
}

.tagline {
  margin: 0.75rem 0 0;
  font-size: 0.875rem;
  color: color-mix(in srgb, CanvasText 68%, transparent);
}

.card-body {
  padding: 1.25rem 1.5rem 1.5rem;
}

.actions {
  margin: 0;
}

a.btn-primary {
  display: inline-block;
  padding: 0.625rem 1rem;
  font: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  border-radius: 8px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  transition:
    background-color 0.15s ease,
    border-color 0.15s ease,
    transform 0.05s ease;
}

a.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

a.btn-primary:active {
  transform: translateY(1px);
}

a.btn-primary:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);
}

a.btn-primary[hidden] {
  display: none;
}

@media (max-width: 480px) {
  body {
    padding: 1.25rem 0.75rem;
  }

  .card-header,
  .card-body {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}