/* Dibalulu — foglio di stile comune */

:root {
  --bg: #e8e6e1;
  --bg-alt: #d3d0c9;
  --bg-dark: #2a2a28;
  --ink: #17171a;
  --ink-soft: #6a6862;
  --ink-inv: #e8e6e1;
  --rust: #8c4a2f;
  --steel: #55707a;
  --serif: Georgia, "Times New Roman", Times, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  --step: 84px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.65;
  overflow-x: hidden;
}

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

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

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

/* ---------- griglia ---------- */

.wrap {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 28px;
}

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

/* ---------- intestazione ---------- */

.site-head {
  border-bottom: 1px solid rgba(23, 23, 26, 0.18);
  padding: 22px 0 18px;
}

.head-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px 26px;
}

.brand {
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
}

.brand span { color: var(--rust); }

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

.site-nav a {
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  border-bottom-color: var(--rust);
  color: var(--rust);
}

/* ---------- apertura ---------- */

.opener { padding: 72px 0 var(--step); }

.opener h1 {
  grid-column: 1 / span 8;
  font-size: clamp(2.1rem, 5.2vw, 3.55rem);
  line-height: 1.12;
  font-weight: normal;
  margin: 0 0 30px;
  letter-spacing: -0.01em;
}

.opener .lead {
  grid-column: 1 / span 6;
  margin: 0 0 18px;
  font-size: 1.12rem;
}

.opener .lead-more {
  grid-column: 1 / span 6;
  margin: 0;
  color: var(--ink-soft);
}

/* colonna indice */

.index-col {
  grid-column: 10 / span 3;
  grid-row: 1 / span 3;
  border-left: 1px solid rgba(23, 23, 26, 0.2);
  padding-left: 18px;
}

.index-col p {
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--steel);
  margin: 6px 0 14px;
}

.index-col ol {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: idx;
}

.index-col li {
  font-family: var(--sans);
  font-size: 12.5px;
  line-height: 1.45;
  margin-bottom: 12px;
  counter-increment: idx;
}

.index-col li::before {
  content: counter(idx, decimal-leading-zero);
  color: var(--steel);
  margin-right: 9px;
  font-variant-numeric: tabular-nums;
}

.index-col a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(140, 74, 47, 0.4);
}

.index-col a:hover { color: var(--rust); border-bottom-color: var(--rust); }

/* ---------- sezioni ---------- */

.band { padding: var(--step) 0; }
.band-alt { background: var(--bg-alt); }
.band-dark { background: var(--bg-dark); color: var(--ink-inv); }
.band-dark h2, .band-dark h3 { color: var(--ink-inv); }
.band-dark a { color: #d3a68c; }
.band-dark .cap { color: #a6a49c; }
.band-dark .rule { background: rgba(232, 230, 225, 0.28); }
.band-dark .num { color: #8ea9b1; }
.band-dark li::marker { color: #d3a68c; }
.band-dark :focus-visible { outline-color: #d3a68c; }

.col-main { grid-column: 1 / span 7; }
.col-side { grid-column: 10 / span 3; }

.num {
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--steel);
  display: block;
  margin-top: 10px;
}

h2 {
  font-size: clamp(1.5rem, 2.9vw, 2rem);
  font-weight: normal;
  line-height: 1.2;
  margin: 0 0 22px;
  letter-spacing: -0.005em;
}

h3 {
  font-style: italic;
  font-size: 1.22rem;
  font-weight: normal;
  margin: 34px 0 12px;
}

p { margin: 0 0 22px; }
p + p { text-indent: 1.4em; }

.rule {
  height: 1px;
  background: rgba(23, 23, 26, 0.22);
  border: 0;
  margin: 0 0 26px;
  grid-column: 1 / span 7;
}

.cap {
  font-family: var(--sans);
  font-size: 12px;
  line-height: 1.5;
  color: var(--ink-soft);
  margin: 10px 0 0;
}

ul.list, ol.list { margin: 0 0 24px; padding-left: 1.25em; }
ul.list li, ol.list li { margin-bottom: 10px; }
ul.list li::marker { color: var(--rust); }
ol.list li::marker { color: var(--steel); font-family: var(--sans); font-size: 0.85em; }

/* ---------- immagini ---------- */

.figure-main {
  grid-column: 1 / span 8;
  margin: 0;
}

.figure-main img { width: 100%; }

.figure-main figcaption {
  grid-column: auto;
  font-family: var(--sans);
  font-size: 12px;
  color: var(--ink-soft);
  margin-top: 10px;
  max-width: 42ch;
  margin-left: auto;
  text-align: right;
}

.figure-detail {
  grid-column: 1 / span 4;
  margin: 0;
}

.figure-detail img { width: 100%; }

.detail-text { grid-column: 6 / span 6; }

/* ---------- piè di pagina ---------- */

.site-foot {
  border-top: 1px solid rgba(23, 23, 26, 0.2);
  padding: 44px 0 56px;
  margin-top: var(--step);
}

.foot-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 20px 32px;
  align-items: flex-start;
}

.foot-name {
  font-family: var(--serif);
  font-size: 21px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.foot-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
}

.foot-links a {
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(140, 74, 47, 0.45);
}

.foot-links a:hover { color: var(--rust); border-bottom-color: var(--rust); }

.foot-rule {
  height: 1px;
  background: rgba(23, 23, 26, 0.2);
  border: 0;
  margin: 26px 0 20px;
}

.foot-mail { margin: 0 0 10px; font-size: 1rem; }

.foot-note {
  font-family: var(--sans);
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-soft);
  margin: 0;
  max-width: 68ch;
}

/* ---------- pagine interne ---------- */

.page-head { padding: 66px 0 40px; }

.page-head h1 {
  grid-column: 1 / span 8;
  font-size: clamp(1.9rem, 4.4vw, 3rem);
  line-height: 1.14;
  font-weight: normal;
  margin: 0 0 24px;
}

.page-head .lead { grid-column: 1 / span 6; margin: 0; color: var(--ink-soft); }

.marks { grid-column: 10 / span 3; grid-row: 1 / span 2; border-left: 1px solid rgba(23,23,26,0.2); padding-left: 18px; }
.marks p { font-family: var(--sans); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--steel); margin: 6px 0 14px; }
.marks ul { list-style: none; margin: 0; padding: 0; }
.marks li { font-family: var(--sans); font-size: 12.5px; line-height: 1.5; margin-bottom: 11px; color: var(--ink); }
.marks li a { word-break: break-word; }

.prose { padding-bottom: 20px; }
.prose h2 { margin-top: 46px; }
.prose h2:first-of-type { margin-top: 0; }

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

@media (max-width: 900px) {
  :root { --step: 50px; }

  .wrap { padding: 0 20px; }

  .grid { grid-template-columns: 1fr; column-gap: 0; }

  .opener h1,
  .opener .lead,
  .opener .lead-more,
  .col-main,
  .col-side,
  .rule,
  .figure-main,
  .figure-detail,
  .detail-text,
  .page-head h1,
  .page-head .lead,
  .index-col,
  .marks {
    grid-column: 1 / -1;
    grid-row: auto;
  }

  .index-col,
  .marks {
    border-left: 0;
    border-top: 1px solid rgba(23, 23, 26, 0.2);
    border-bottom: 1px solid rgba(23, 23, 26, 0.2);
    padding: 16px 0;
    margin-bottom: 34px;
    order: -1;
  }

  .opener .index-col { margin-bottom: 30px; }

  .index-col ol,
  .marks ul {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 20px;
  }

  .index-col li,
  .marks li { margin-bottom: 0; }

  .opener { padding-top: 34px; }
  .page-head { padding: 34px 0 26px; }

  .figure-main figcaption { text-align: left; margin-left: 0; }
  .figure-detail { margin-bottom: 26px; max-width: 420px; }
  .col-side .num { margin-top: 0; }
  .site-foot { padding-bottom: 40px; }
}

@media (max-width: 560px) {
  body { font-size: 17px; }
  .head-row { flex-direction: column; align-items: flex-start; }
  p + p { text-indent: 0; }
}