:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #0b0f17;
  color: #e2e8f0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top, rgba(245, 158, 11, 0.12), transparent 34rem),
    #0b0f17;
}

main {
  width: min(760px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 3rem 0 5rem;
}

.back-link,
a {
  color: #f59e0b;
}

.back-link {
  display: inline-flex;
  margin-bottom: 2rem;
  font-size: 0.875rem;
  font-weight: 700;
  text-decoration: none;
}

article {
  padding: clamp(1.5rem, 5vw, 3rem);
  border: 1px solid #1e293b;
  border-radius: 1.25rem;
  background: rgba(19, 27, 42, 0.88);
  box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.3);
}

h1,
h2 {
  color: #fff;
}

h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(2rem, 7vw, 3rem);
  line-height: 1.1;
}

h2 {
  margin: 2rem 0 0.65rem;
  font-size: 1.1rem;
}

p,
li {
  color: #cbd5e1;
  line-height: 1.7;
}

ul {
  padding-left: 1.25rem;
}

.updated {
  margin: 0 0 2rem;
  color: #94a3b8;
  font-size: 0.8rem;
}

.error-logo {
  display: block;
  width: 5rem;
  height: 5rem;
  margin-bottom: 1.5rem;
}

.error-code {
  margin: 0 0 0.5rem;
  color: #f59e0b;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.action-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.action-links a {
  display: inline-flex;
  padding: 0.75rem 1rem;
  border: 1px solid #334155;
  border-radius: 0.65rem;
  color: #e2e8f0;
  font-weight: 700;
  text-decoration: none;
}

.action-links a:first-child {
  border-color: #f59e0b;
  background: #f59e0b;
  color: #0f172a;
}

:focus-visible {
  outline: 3px solid #f59e0b;
  outline-offset: 3px;
}