:root {
  --ink: #061526;
  --muted: #2a405c;
  --line: #c5d3e6;
  --blue: #0f57d9;
  --paper: #eef3f9;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "DM Sans", system-ui, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(80% 50% at 10% 0%, rgba(15, 87, 217, 0.14), transparent 55%),
    linear-gradient(180deg, #e4ecf8, var(--paper) 40%, #dde6f2);
}

main {
  width: min(480px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 0 64px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: #d9e6ff;
  color: #0a3a9a;
  font-size: 12px;
  font-weight: 700;
}

h1 {
  margin: 12px 0 8px;
  font-size: clamp(1.75rem, 5vw, 2.25rem);
  letter-spacing: -0.03em;
}

.lede {
  margin: 0 0 24px;
  color: var(--muted);
  line-height: 1.5;
  font-size: 0.95rem;
}

label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 0 0 6px;
  color: var(--muted);
}

input {
  width: 100%;
  margin-bottom: 12px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 10px;
  padding: 11px 12px;
  font: inherit;
  color: var(--ink);
}

button {
  appearance: none;
  border: 0;
  width: 100%;
  margin-top: 8px;
  /* padding: 14px 16px; */
  border-radius: 10px;
  background: var(--blue);
  color: #fff;
  font: inherit;
  font-weight: 750;
  cursor: pointer;
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

button.secondary {
  margin-top: 8px;
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line);
}

pre {
  margin-top: 16px;
  padding: 14px;
  border-radius: 12px;
  background: #061526;
  color: #eef3f9;
  overflow: auto;
  font-size: 12px;
  line-height: 1.45;
  min-height: 120px;
}

.meta {
  margin-top: 10px;
  font-size: 12px;
  color: var(--muted);
  word-break: break-all;
}

.err {
  color: #9f1d1d;
  font-weight: 700;
}

fieldset {
  margin: 0 0 16px;
  padding: 14px 14px 2px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.55);
}

legend {
  padding: 0 6px;
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
}

code {
  font-size: 0.9em;
}