:root {
  color-scheme: dark;
  --background: #07130f;
  --surface: #0d211a;
  --surface-raised: #123025;
  --border: #245342;
  --text: #f1fff9;
  --muted: #a5c8b9;
  --accent: #55e6a5;
  --accent-strong: #19bf78;
  --warning: #ffd479;
  --warning-background: #352811;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(circle at 85% 10%, rgb(39 126 91 / 24%), transparent 32rem),
    var(--background);
  color: var(--text);
  line-height: 1.55;
}

main {
  width: min(900px, calc(100% - 32px));
  margin: 0 auto;
  padding: 64px 0;
}

.hero {
  max-width: 740px;
  padding: 24px 0 32px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 20px;
  font-size: clamp(2.4rem, 7vw, 5.2rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

h2 {
  margin-bottom: 10px;
  font-size: 1.2rem;
  letter-spacing: -0.015em;
}

.lede {
  color: var(--muted);
  font-size: clamp(1rem, 2.5vw, 1.25rem);
}

.warning {
  margin-bottom: 24px;
  padding: 16px 18px;
  border: 1px solid #7b6028;
  background: var(--warning-background);
  color: var(--warning);
  border-radius: 12px;
}

section {
  margin-top: 18px;
  padding: 24px;
  border: 1px solid var(--border);
  background: rgb(13 33 26 / 90%);
  border-radius: 16px;
  box-shadow: 0 18px 60px rgb(0 0 0 / 18%);
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.status {
  padding: 5px 10px;
  background: var(--surface-raised);
  color: var(--accent);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 800;
}

.status.error {
  color: var(--warning);
}

.facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 20px 0 0;
  overflow: hidden;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.facts div {
  min-width: 0;
  padding: 16px;
  background: var(--surface);
}

dt {
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

dd {
  margin: 0;
  overflow-wrap: anywhere;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92rem;
}

.fingerprint {
  color: var(--accent);
}

.checklist {
  margin: 18px 0 0;
  padding-left: 24px;
}

.checklist li {
  margin: 10px 0;
  padding-left: 6px;
}

.actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

button {
  padding: 11px 16px;
  border: 0;
  background: var(--accent);
  color: #032517;
  border-radius: 10px;
  cursor: pointer;
  font: inherit;
  font-weight: 850;
}

button:hover {
  background: var(--accent-strong);
}

button:focus-visible {
  outline: 3px solid var(--text);
  outline-offset: 3px;
}

#copy-status {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

footer {
  margin-top: 30px;
  color: var(--muted);
  font-size: 0.82rem;
}

@media (max-width: 640px) {
  main {
    padding: 30px 0;
  }

  .facts {
    grid-template-columns: 1fr;
  }

  .actions {
    align-items: flex-start;
    flex-direction: column;
  }
}