/* The cabinet: one column that reads on a phone (the binding page opens in the phone's browser) and on a laptop. */
:root {
  --ink: #1b1f24;
  --muted: #5b6470;
  --line: #d9dee4;
  --accent: #0b6e4f;
  --error: #b3261e;
  --warning: #8a5a00;
  --paper: #ffffff;
  --ground: #f4f6f8;
  color-scheme: light;
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
}

body {
  margin: 0;
  background: var(--ground);
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1rem;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.brand {
  font-weight: 700;
  letter-spacing: 0.02em;
}

nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

main {
  max-width: 40rem;
  margin: 0 auto;
  padding: 1rem;
}

h1 {
  font-size: 1.5rem;
  margin: 0.5rem 0 1rem;
}

h2 {
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
}

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 1rem;
  margin: 0 0 1rem;
}

label {
  display: block;
  margin: 0 0 0.75rem;
  color: var(--muted);
}

input {
  display: block;
  width: 100%;
  box-sizing: border-box;
  margin-top: 0.25rem;
  padding: 0.55rem 0.65rem;
  font: inherit;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 0.375rem;
}

button {
  font: inherit;
  padding: 0.55rem 1rem;
  border: 1px solid var(--accent);
  border-radius: 0.375rem;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}

button.secondary {
  background: var(--paper);
  color: var(--accent);
}

button.link {
  background: none;
  border: none;
  color: var(--accent);
  padding: 0;
}

a {
  color: var(--accent);
}

form.inline {
  display: inline;
}

.buttons {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.list {
  list-style: none;
  margin: 0 0 0.75rem;
  padding: 0;
}

.list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--line);
}

.muted,
.hint {
  color: var(--muted);
}

.hint {
  font-size: 0.9rem;
}

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

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

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

.question {
  font-size: 1.1rem;
  font-weight: 600;
}

[hidden] {
  display: none !important;
}