:root {
  color-scheme: light;
  --ink: #17202a;
  --muted: #5c6875;
  --surface: #ffffff;
  --background: #f4f6f8;
  --border: #d8dee5;
  --brand: #005b96;
  --brand-dark: #00426e;
  --success: #176b3a;
  --success-bg: #eaf6ef;
  --error: #a12622;
  --error-bg: #fceeed;
  --warning: #7a4a00;
  --warning-bg: #fff5dd;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--background);
  line-height: 1.55;
}

.container {
  width: min(1080px, calc(100% - 32px));
  margin-inline: auto;
}

.page-header {
  padding: 44px 0 34px;
  color: #fff;
  background: linear-gradient(120deg, #003f67, #006a9f);
}

.eyebrow {
  margin: 0 0 4px;
  font-size: .78rem;
  font-weight: 750;
  letter-spacing: .12em;
  text-transform: uppercase;
  opacity: .82;
}

h1, h2, h3 { line-height: 1.2; }
h1 { margin: 0; font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { margin: 0; font-size: 1.45rem; }
h3 { margin: 22px 0 8px; font-size: 1.02rem; }

.lead {
  max-width: 760px;
  margin: 12px 0 10px;
  font-size: 1.08rem;
}

.notice { margin: 0; font-size: .92rem; opacity: .84; }

main { padding-block: 30px 10px; }

.card {
  margin-bottom: 22px;
  padding: clamp(20px, 4vw, 32px);
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  box-shadow: 0 2px 10px rgba(19, 37, 54, .05);
}

.card.compact { padding-block: 24px; }
.card.compact ul { margin-bottom: 0; }

.section-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 22px;
}

.step {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  margin: 0 8px 0 0;
  float: left;
  border-radius: 50%;
  color: #fff;
  background: var(--brand);
  font-weight: 750;
}

label {
  display: block;
  margin-bottom: 6px;
  font-weight: 700;
}

input {
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid #aeb8c2;
  border-radius: 6px;
  color: var(--ink);
  background: #fff;
  font: inherit;
}

input:focus, button:focus-visible {
  outline: 3px solid rgba(0, 91, 150, .22);
  outline-offset: 2px;
}

.input-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 14px;
}

button {
  min-height: 42px;
  padding: 9px 16px;
  border: 1px solid var(--brand);
  border-radius: 6px;
  color: #fff;
  background: var(--brand);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

button:hover { background: var(--brand-dark); }
button:disabled { cursor: wait; opacity: .65; }

.examples {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
  margin-top: 15px;
  color: var(--muted);
  font-size: .88rem;
}

button.example {
  min-height: 32px;
  padding: 5px 9px;
  border-color: var(--border);
  color: var(--brand-dark);
  background: #f7fafc;
  font-size: .82rem;
}

button.example:hover { background: #eaf2f7; }

.api-status {
  white-space: nowrap;
  color: var(--muted);
  font-size: .84rem;
}

.api-status.ok { color: var(--success); }
.api-status.error { color: var(--error); }

.result {
  margin-top: 24px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
}

.summary {
  padding: 13px 15px;
  border-left: 4px solid;
  border-radius: 4px;
}

.summary.success { color: var(--success); background: var(--success-bg); }
.summary.error { color: var(--error); background: var(--error-bg); }
.summary.warning { color: var(--warning); background: var(--warning-bg); }
.summary strong { display: block; }

.data-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.datum {
  min-width: 0;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fbfcfd;
}

.datum .label {
  display: block;
  margin-bottom: 4px;
  color: var(--muted);
  font-size: .78rem;
  font-weight: 700;
  text-transform: uppercase;
}

code {
  overflow-wrap: anywhere;
  font-family: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
}

.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
}

th, td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  white-space: nowrap;
}

th { color: var(--muted); background: #f7f9fb; font-size: .78rem; }

.comparison-status {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}

.boolean-result {
  padding: 13px;
  border: 1px solid var(--border);
  border-radius: 6px;
}

.boolean-result strong { display: block; font-size: 1.1rem; }
.boolean-result.yes { border-color: #8cc6a5; background: var(--success-bg); }
.boolean-result.no { background: #f7f9fb; }

footer {
  padding-block: 12px 34px;
  color: var(--muted);
  font-size: .85rem;
}

@media (max-width: 700px) {
  .input-row, .compare-grid, .data-grid, .comparison-status { grid-template-columns: 1fr; }
  .input-row button { width: 100%; }
  .section-heading { display: block; }
  .api-status { display: block; margin-top: 10px; }
}