/* Belmaturo — specimen sheet */

:root {
  --paper: #f7f3ea;
  --paper-alt: #eae4d8;
  --dark: #43221f;
  --ink: #241b16;
  --muted: #786b5d;
  --accent: #8a2c25;
  --gold: #8a6a24;
  --line: #d5cbb9;
  --sp: 48px;
  --rhythm: 88px;
  --serif: Georgia, "Times New Roman", serif;
  --sans: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper-alt);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.8;
}

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

a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }

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

.page {
  max-width: 1220px;
  margin: 0 auto;
  padding: 40px;
}

/* ---------- header band ---------- */

.band {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 28px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 40px;
}

.brand {
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-decoration: none;
}

.brand:hover { color: var(--accent); }

.nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
  margin: 0;
  padding: 0;
  font-size: 14px;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}

.nav a:hover { color: var(--accent); border-bottom-color: var(--accent); }

.nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--gold);
}

/* ---------- sheet ---------- */

.sheet {
  background: var(--paper);
  border: 1px solid var(--accent);
  padding: var(--sp);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: 28px;
  row-gap: 0;
  align-items: start;
}

.grid > section {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: 28px;
  align-items: start;
}

.grid > section.tint,
.grid > section.dark { display: block; }

.grid > .rule,
.grid > .marginnote { grid-column: 1 / -1; }

section + section,
.rule + section,
.marginnote + section { margin-top: var(--rhythm); }

/* ---------- rules / separators ---------- */

.rule {
  position: relative;
  height: 1px;
  background: var(--line);
  margin-top: var(--rhythm);
}

.rule::before,
.rule::after {
  content: "";
  position: absolute;
  top: -4px;
  width: 1px;
  height: 9px;
  background: var(--gold);
}

.rule::before { left: 0; }
.rule::after { right: 0; }

/* separator replaced by a note pushed into the right margin */
.marginnote {
  margin-top: var(--rhythm);
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: 28px;
}

.marginnote .note { grid-column: 8 / 13; }

/* ---------- typography ---------- */

h1, h2, h3 { font-family: var(--serif); font-weight: 400; }

h1 {
  grid-column: 1 / 9;
  margin: 0;
  font-size: clamp(34px, 5.2vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.01em;
}

h2 {
  grid-column: 1 / 8;
  margin: 0 0 14px;
  font-size: 25px;
  line-height: 1.25;
}

h3 {
  grid-column: 1 / 8;
  margin: 26px 0 8px;
  font-size: 18px;
  line-height: 1.35;
}

.snum {
  font-size: 13px;
  color: var(--gold);
  letter-spacing: 0.08em;
  margin-right: 12px;
  vertical-align: 3px;
}

p { margin: 0 0 18px; }
p:last-child { margin-bottom: 0; }

.col-text { grid-column: 1 / 8; }
.col-wide { grid-column: 1 / 10; }

.lead {
  grid-column: 1 / 9;
  font-size: 19px;
  line-height: 1.7;
  margin-top: 26px;
}

.cap {
  font-size: 12px;
  line-height: 1.55;
  color: var(--muted);
  font-family: var(--sans);
}

/* ---------- side notes / small tables ---------- */

.note {
  grid-column: 9 / 13;
  border: 1px solid var(--line);
  padding: 14px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
  background: transparent;
}

.note h2, .note h3, .note-title {
  font-family: var(--serif);
  font-size: 14px;
  color: var(--gold);
  margin: 0 0 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
  grid-column: auto;
  line-height: 1.3;
}

.note dl { margin: 0; }

.note dl > div {
  display: flex;
  gap: 12px;
  justify-content: space-between;
  padding: 5px 0;
  border-bottom: 1px dotted var(--line);
}

.note dl > div:last-child { border-bottom: 0; padding-bottom: 0; }
.note dt { color: var(--ink); }
.note dd { margin: 0; text-align: right; }
section .note { grid-row: 1 / span 12; align-self: start; }
.hero-note { grid-row: 1 / span 2; align-self: start; }
.note ul { margin: 0; padding-left: 16px; }
.note li { margin-bottom: 6px; }
.note li:last-child { margin-bottom: 0; }
.note p { margin-bottom: 10px; }

/* ---------- lists ---------- */

.checklist, .plainlist {
  grid-column: 1 / 8;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}

.checklist li, .plainlist li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 10px;
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  width: 9px;
  height: 1px;
  background: var(--accent);
}

.plainlist li::before {
  content: "";
  position: absolute;
  left: 1px;
  top: 11px;
  width: 5px;
  height: 5px;
  background: var(--gold);
}

.toc { grid-column: 1 / 10; columns: 2; column-gap: 36px; }
.toc li { break-inside: avoid; }

/* ---------- images ---------- */

.fig-main {
  grid-column: 1 / 6;
  margin: 44px 0 0;
}

.fig-main img { border: 1px solid var(--line); }

.fig-main-cap {
  grid-column: 7 / 12;
  align-self: end;
  padding-bottom: 6px;
  border-top: 1px solid var(--gold);
  padding-top: 10px;
}

/* ---------- tinted band ---------- */

.tint {
  background: var(--paper-alt);
  padding: 40px var(--sp);
  margin-inline: calc(var(--sp) * -1);
}

/* ---------- contrast band ---------- */

.dark {
  background: var(--dark);
  color: var(--paper);
  padding: 56px var(--sp);
  margin-inline: calc(var(--sp) * -1);
}

.dark h2, .dark h3 { color: var(--paper); }
.dark .snum { color: #c9a45a; }
.dark a { color: #e6c99a; }
.dark a:focus-visible { outline-color: var(--paper); }
.dark .cap { color: #bfa997; }
.dark .checklist li::before { background: #c9a45a; }

.dark h2, .dark .col-text, .dark .checklist { grid-column: 1 / 7; }

.dark .fig-detail {
  grid-column: 8 / 13;
  grid-row: 1 / span 12;
  align-self: start;
  margin: 0;
}

.dark .fig-detail img { border: 1px solid rgba(247, 243, 234, 0.35); }
.dark .fig-detail figcaption { margin-top: 10px; }

/* ---------- about column of notes ---------- */

.about-cols {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 7fr 4fr;
  gap: 28px;
  align-items: start;
}

.notestack { display: grid; gap: 20px; align-content: start; }
.notestack .note { grid-column: auto; grid-row: auto; }
.about-text > :first-child { margin-top: 0; }
.about-text h2 { margin-top: 40px; }
.about-text h2:first-of-type { margin-top: 0; }
.grid > section.legal { grid-column: 1 / 10; display: block; }
.legal h2 { margin-top: 40px; }
.legal ul { padding-left: 0; }

/* ---------- contact ---------- */

.contact-mail {
  font-family: var(--serif);
  font-size: 21px;
}

/* ---------- footer ---------- */

.foot {
  margin-top: 44px;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

.foot-top {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 24px;
  justify-content: space-between;
  align-items: baseline;
}

.foot-name { font-family: var(--serif); font-size: 20px; }

.foot-line {
  height: 1px;
  background: var(--line);
  margin: 18px 0;
}

.foot-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
  margin: 0 0 14px;
  padding: 0;
  font-size: 14px;
}

.foot-nav a { color: var(--muted); text-decoration: none; }
.foot-nav a:hover { color: var(--accent); text-decoration: underline; }

.foot p { font-size: 13px; color: var(--muted); line-height: 1.65; max-width: 62ch; }

/* ---------- responsive ---------- */

@media (max-width: 900px) {
  :root { --sp: 28px; --rhythm: 64px; }
  .grid, .marginnote, .grid > section { grid-template-columns: repeat(6, 1fr); column-gap: 20px; }
  .about-cols { grid-template-columns: 1fr; }
  .grid > section.legal { grid-column: 1 / -1; }
  section .note, .hero-note, .dark .fig-detail { grid-row: auto; }
  h1, h2, h3, .lead, .col-text, .col-wide,
  .checklist, .plainlist, .toc, .note, .fig-main,
  .fig-main-cap, .marginnote .note,
  .dark .fig-detail, .dark .col-text { grid-column: 1 / -1; }
  .note { margin-top: 26px; }
  .fig-main-cap { margin-top: 14px; }
  .dark .fig-detail { margin-top: 28px; }
  .toc { columns: 1; }
}

@media (max-width: 620px) {
  :root { --sp: 20px; --rhythm: 52px; }
  body { font-size: 16px; }
  .page { padding: 16px; }
  .band { margin-bottom: 26px; }
  h2 { font-size: 22px; }
  .lead { font-size: 17.5px; }
  .foot-top { display: block; }
}