*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: var(--font-body);
  font-size: var(--t-base);
  line-height: 1.6;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(191, 76, 47, 0.08), transparent 24%),
    linear-gradient(180deg, var(--paper) 0%, var(--paper-warm) 100%);
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
  background: none;
}

code {
  font-family: var(--font-mono);
  font-size: 0.94em;
}

::selection {
  background: rgba(191, 76, 47, 0.18);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

h1 {
  line-height: 0.93;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 1;
}

h3 {
  font-size: clamp(1.18rem, 2.5vw, 1.8rem);
  line-height: 1.08;
}

p,
li,
dd {
  max-width: var(--col-text);
  text-wrap: pretty;
}

ul,
ol,
dl {
  margin: 0;
  padding: 0;
}

summary {
  cursor: pointer;
}

details > summary {
  list-style: none;
}

details > summary::-webkit-details-marker {
  display: none;
}

.eyebrow {
  margin: 0 0 var(--s-2);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-head {
  display: grid;
  gap: var(--s-2);
}

.section-intro {
  margin: 0;
  color: var(--ink-soft);
  font-size: var(--t-md);
}

.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition:
    opacity 500ms var(--ease-out),
    transform 500ms var(--ease-out);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.doc-body {
  background:
    radial-gradient(circle at top left, rgba(47, 90, 78, 0.06), transparent 24%),
    linear-gradient(180deg, var(--paper) 0%, var(--paper-warm) 100%);
}

@media print {
  body {
    background: white;
    color: black;
  }
}