:root {
  --bg: #f3f5f8;
  --surface: #ffffff;
  --ink: #16233a;
  --muted: #566377;
  --line: #d6dde7;
  --link: #1f57c3;
  --code-bg: #1b2636;
  --code-ink: #e8eef6;
  --inline-code: #e4e9f1;
  --safe: #2e8b57;
  --review: #b7791f;
  --caution: #c0392b;
  --info: #2f6db5;
  --rest: #a9b3c1;
  --text: "Atkinson Hyperlegible Next", "Atkinson Hyperlegible", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "Atkinson Hyperlegible Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111821;
    --surface: #17212d;
    --ink: #e5ebf3;
    --muted: #9aa7b8;
    --line: #2a3747;
    --link: #86adff;
    --code-bg: #0b121b;
    --code-ink: #e5ebf3;
    --inline-code: #233042;
    --safe: #4fb27b;
    --review: #d9a03f;
    --caution: #e2645a;
    --rest: #5b6778;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 1.125rem/1.6 var(--text);
}
a { color: var(--link); text-underline-offset: 0.15em; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--link); outline-offset: 2px; border-radius: 2px; }

.bar, main, .foot { max-width: 46rem; margin: 0 auto; padding: 0 1rem; }
.bar { display: flex; align-items: baseline; justify-content: space-between; padding-top: 1.25rem; padding-bottom: 1.25rem; }
.brand { font-weight: 800; font-size: 1.25rem; color: var(--ink); text-decoration: none; letter-spacing: -0.01em; }
.bar nav a { margin-left: 1.25rem; color: var(--muted); text-decoration: none; }
.bar nav a:hover { color: var(--ink); text-decoration: underline; }

h1, h2, h3 { line-height: 1.2; letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem, 6vw, 3.1rem); font-weight: 800; margin: 2.5rem 0 1rem; text-wrap: balance; }
h2 { font-size: 1.5rem; font-weight: 700; margin: 2.75rem 0 0.75rem; }
h3 { font-size: 1.2rem; font-weight: 700; margin: 2rem 0 0.5rem; }
p, ul, ol { margin: 0 0 1rem; }
ul, ol { padding-left: 1.25rem; }
li { margin-bottom: 0.35rem; }
.lede { font-size: 1.3rem; line-height: 1.5; color: var(--ink); max-width: 38rem; }
.small { font-size: 0.95rem; color: var(--muted); }

code { font-family: var(--mono); font-size: 0.88em; background: var(--inline-code); padding: 0.1em 0.3em; border-radius: 4px; }
pre {
  position: relative;
  background: var(--code-bg);
  color: var(--code-ink);
  padding: 1rem 1.1rem;
  border-radius: 8px;
  overflow-x: auto;
  margin: 0 0 1.25rem;
  line-height: 1.5;
}
pre code { background: none; padding: 0; font-size: 0.9rem; color: inherit; white-space: pre; }
.copy {
  position: absolute; top: 0.5rem; right: 0.5rem;
  font: 600 0.8rem var(--text);
  color: var(--code-ink); background: var(--code-bg);
  border: 1px solid rgba(255, 255, 255, 0.22); border-radius: 6px;
  padding: 0.2rem 0.6rem; cursor: pointer;
}
.copy:hover { border-color: rgba(255, 255, 255, 0.5); }
pre.has-copy { padding-right: 5rem; }

/* The disk bar: the one bold element. Segment colours are whyfull's risk levels. */
.disk { margin: 2rem 0 2.25rem; }
.disk-head { display: flex; justify-content: space-between; gap: 1rem; margin-bottom: 0.5rem; font-size: 1rem; }
.disk-head strong { color: var(--caution); }
.disk-head span { color: var(--muted); }
.disk-bar {
  display: flex; gap: 2px; height: 4.5rem;
  border-radius: 10px; overflow: hidden;
  background: var(--line);
}
.seg { flex: 0 0 var(--w); min-width: 3px; animation: fill 0.5s cubic-bezier(.2,.7,.2,1) both; animation-delay: calc(var(--i) * 45ms); transform-origin: left; }
.safe { background: var(--safe); }
.review { background: var(--review); }
.caution { background: var(--caution); }
.rest { background: var(--rest); }
@keyframes fill { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@media (prefers-reduced-motion: reduce) { .seg { animation: none; } }
.disk figcaption { font-size: 0.95rem; color: var(--muted); margin: 0.6rem 0 1rem; }
.legend { list-style: none; padding: 0; margin: 0; columns: 2 18rem; column-gap: 2rem; font-size: 0.95rem; }
.legend li { break-inside: avoid; display: flex; align-items: baseline; gap: 0.5rem; margin-bottom: 0.3rem; }
.sw { flex: none; width: 0.75rem; height: 0.75rem; border-radius: 3px; transform: translateY(0.05rem); }
.mb { flex: none; width: 3.75rem; text-align: right; font-variant-numeric: tabular-nums; font-weight: 600; }
.legend em { font-style: normal; font-size: 0.85rem; margin-left: auto; padding-left: 0.5rem; }
.legend em.safe, .legend em.review, .legend em.caution, .legend em.rest { background: none; }
.legend em.safe { color: var(--safe); }
.legend em.review { color: var(--review); }
.legend em.caution { color: var(--caution); }
.legend em.rest { color: var(--muted); }

.run { margin-top: 1.5rem; }
.guides { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); }
.guides li { margin: 0; padding: 0.8rem 0; border-bottom: 1px solid var(--line); display: flex; flex-direction: column; }
.guides a { font-weight: 700; text-decoration: none; }
.guides a:hover { text-decoration: underline; }
.guides span { color: var(--muted); font-size: 1rem; }
.shot { display: block; width: 100%; height: auto; border-radius: 10px; }

.guide h1 { margin-bottom: 0.75rem; }
.jump { color: var(--muted); font-size: 1rem; margin-bottom: 2rem; }
.tool {
  margin: 3rem 0 0;
  padding: 1.25rem 1.25rem 0.5rem;
  background: var(--surface);
  border-left: 4px solid var(--safe);
  border-radius: 0 10px 10px 0;
}
.tool h2 { margin-top: 0; }
.more h2 { margin-top: 3rem; }
table { border-collapse: collapse; width: 100%; margin-bottom: 1.25rem; font-size: 0.95rem; }
th, td { text-align: left; padding: 0.4rem 0.6rem; border-bottom: 1px solid var(--line); }

.foot { margin-top: 4rem; padding-top: 1.5rem; padding-bottom: 3rem; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.95rem; }