:root {
  color-scheme: light;
  --font-sans: "Lexend", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --surface-canvas: oklch(0.984 0.0038 98.2);
  --surface-raised: oklch(1 0 0);
  --surface-sunken: oklch(0.945 0.0062 98.6);
  --content-primary: oklch(0.343 0.023 98.8);
  --content-secondary: oklch(0.53 0.0085 99);
  --content-tertiary: oklch(0.55 0.008 99);
  --content-inverse: oklch(1 0 0);
  --border-subtle: oklch(0.896 0.0043 98.5);
  --border-focus: oklch(0.7 0.075 82);
  --accent-primary: oklch(0.6171 0.1375 39.0427);
  --accent-hover: color-mix(in oklch, oklch(0.6171 0.1375 39.0427) 90%, black);
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --shadow-soft: 0 18px 40px oklch(0.45 0.02 98 / 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--font-sans);
  background:
    radial-gradient(1200px 500px at 10% -10%, oklch(0.95 0.03 70 / 0.55), transparent 60%),
    radial-gradient(900px 420px at 100% 0%, oklch(0.96 0.02 40 / 0.4), transparent 55%),
    var(--surface-canvas);
  color: var(--content-primary);
}

main {
  width: min(720px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 4.5rem 0 3rem;
}

.brand {
  margin: 0 0 0.75rem;
  font-size: clamp(2.5rem, 6vw, 3.5rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.lede {
  margin: 0 0 2rem;
  max-width: 36rem;
  color: var(--content-secondary);
  font-size: 1.125rem;
  line-height: 1.6;
}

.panel {
  background: var(--surface-raised);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: 1.5rem;
}

.version {
  margin: 0 0 1.25rem;
  color: var(--content-tertiary);
  font-size: 0.875rem;
}

.actions {
  display: grid;
  gap: 0.85rem;
}

.action {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--surface-sunken);
}

.action a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0 1rem;
  border-radius: 0.65rem;
  background: var(--accent-primary);
  color: var(--content-inverse);
  font-weight: 500;
  text-decoration: none;
  transition: background-color 120ms ease;
}

.action a:hover {
  background: var(--accent-hover);
}

.action a:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

.action a[aria-disabled="true"] {
  pointer-events: none;
  opacity: 0.45;
}

.note {
  margin: 0;
  color: var(--content-secondary);
  font-size: 0.875rem;
  line-height: 1.5;
}

.filename {
  margin: 0;
  color: var(--content-tertiary);
  font-size: 0.75rem;
  word-break: break-all;
}

.foot {
  margin: 1.5rem 0 0;
  color: var(--content-tertiary);
  font-size: 0.75rem;
  line-height: 1.5;
}