:root {
  --ink: #1a2330;
  --muted: #5b6676;
  --ground: #f7f5ef;
  --card: #ffffff;
  --line: #dcd8cc;
  --accent: #1b3a5c;
  --ok: #2f7d6b;
  --warn: #b8741a;
  --danger: #a33a2c;
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  color: var(--ink);
  background: var(--ground);
}

body {
  margin: 0;
}

/* `hidden` must win over the display rules below (nav, label, .row). */
[hidden] {
  display: none !important;
}

.bar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--accent);
  color: #fff;
}

.brand {
  font-size: 1.1rem;
}

nav {
  display: flex;
  gap: 0.25rem;
  flex: 1;
}

nav button {
  background: transparent;
  color: #fff;
  border: 0;
  padding: 0.4rem 0.8rem;
  border-radius: 4px;
  cursor: pointer;
}

nav button.active,
nav button:hover {
  background: rgba(255, 255, 255, 0.15);
}

.who {
  font-size: 0.9rem;
  opacity: 0.85;
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem;
}

h1 {
  font-size: 1.4rem;
  margin: 0 0 0.75rem;
}

h2 {
  font-size: 1.05rem;
  margin: 0 0 0.75rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin-bottom: 1.25rem;
}

.narrow {
  max-width: 420px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.row {
  display: flex;
  gap: 1rem;
}

.grow {
  flex: 1;
}

input,
select {
  font: inherit;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 4px;
}

button {
  font: inherit;
  padding: 0.45rem 0.9rem;
  border-radius: 4px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}

button.quiet {
  background: transparent;
  color: inherit;
  border-color: currentColor;
}

button.danger {
  background: var(--danger);
  border-color: var(--danger);
}

button.small {
  padding: 0.2rem 0.5rem;
  font-size: 0.85rem;
  margin-right: 0.25rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border: 1px solid var(--line);
  font-size: 0.9rem;
}

th,
td {
  text-align: left;
  padding: 0.45rem 0.6rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  background: #efece3;
  font-weight: 600;
}

.mono {
  font-family: ui-monospace, Consolas, monospace;
  font-size: 0.85rem;
}

.hint {
  color: var(--muted);
  font-size: 0.85rem;
}

.message {
  padding: 0.6rem 0.9rem;
  border-radius: 6px;
  background: #e5efe9;
  border: 1px solid var(--ok);
}

.message.error {
  background: #f6e3df;
  border-color: var(--danger);
}

.code-box {
  border-color: var(--warn);
}

.code {
  font-family: ui-monospace, Consolas, monospace;
  font-size: 1.4rem;
  letter-spacing: 0.08em;
}

.pill {
  display: inline-block;
  padding: 0.05rem 0.5rem;
  border-radius: 999px;
  font-size: 0.8rem;
  background: #ece9df;
}

.pill.ok {
  background: #dcefe7;
  color: var(--ok);
}

.pill.warn {
  background: #f7ead6;
  color: var(--warn);
}

.pill.danger {
  background: #f6e3df;
  color: var(--danger);
}