:root {
  --bone: #f4efe6;
  --paper: #fbf8f2;
  --ink: #111111;
  --rule: #111111;
  --muted: #3a3a3a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bone);
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 18px;
  line-height: 1.55;
}

.wrap { max-width: 960px; margin: 0 auto; padding: 0 24px; }

.masthead {
  background: var(--paper);
  border-bottom: 4px solid var(--ink);
  padding: 48px 0 36px;
}

.brand {
  margin: 0;
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 14px;
}

.kicker {
  margin: 12px 0 8px;
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  color: var(--muted);
}

h1 {
  margin: 0 0 16px;
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.1;
  font-weight: 700;
}

h2 {
  margin: 48px 0 16px;
  font-size: 28px;
  border-top: 2px solid var(--rule);
  padding-top: 16px;
}

h3 { margin: 0 0 8px; font-size: 22px; }

.lede { max-width: 70ch; margin: 0 0 16px; }

.notice {
  margin: 0;
  border-left: 6px solid var(--ink);
  padding: 8px 16px;
  background: var(--bone);
}

.note { font-style: italic; color: var(--muted); }

.rules { padding-left: 20px; }
.rules li { margin-bottom: 6px; }

.view {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 24px;
  border: 2px solid var(--ink);
  background: var(--paper);
  padding: 20px;
  margin-bottom: 24px;
}

.figure svg {
  width: 100%;
  height: auto;
  display: block;
  background: #ffffff;
  border: 1px solid var(--ink);
}

.caption {
  margin: 6px 0 0;
  font-size: 13px;
  color: var(--muted);
  font-family: "Helvetica Neue", Arial, sans-serif;
}

.checks-title {
  margin: 12px 0 4px;
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 14px;
  letter-spacing: 0.06em;
}

.checks { margin: 0; padding-left: 20px; }
.checks li { margin-bottom: 4px; }

.quiz fieldset.q {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 0 0 20px;
  padding: 16px 0 0;
}

.quiz legend { font-weight: 700; padding: 0; margin-bottom: 8px; }

.quiz label {
  display: block;
  padding: 4px 0;
  cursor: pointer;
}

.quiz input[type="radio"] { accent-color: var(--ink); margin-right: 8px; }

.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }

button {
  font: inherit;
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-weight: 700;
  background: var(--ink);
  color: var(--paper);
  border: 2px solid var(--ink);
  padding: 10px 22px;
  cursor: pointer;
}

button:focus-visible,
.quiz input:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 2px;
}

.score { margin: 0; font-weight: 700; font-family: "Helvetica Neue", Arial, sans-serif; }

.foot {
  border-top: 2px solid var(--ink);
  margin-top: 48px;
  padding: 24px 0 48px;
  font-size: 15px;
  color: var(--muted);
}

@media (max-width: 680px) {
  .view { grid-template-columns: 1fr; }
}

.gated main, .gated .masthead { display: none; }

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.topbar button { padding: 6px 14px; font-size: 15px; }

.login {
  max-width: 420px;
  margin: 48px 0;
  display: grid;
  gap: 20px;
}

.field label {
  display: block;
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-weight: 700;
  margin-bottom: 6px;
}

.field input {
  font: inherit;
  width: 100%;
  padding: 10px 12px;
  background: var(--paper);
  color: var(--ink);
  border: 2px solid var(--ink);
}

.error {
  margin: 0;
  font-weight: 700;
  color: var(--ink);
  border-left: 6px solid var(--ink);
  padding: 4px 12px;
  min-height: 1em;
}

[hidden] {
  display: none !important;
}