/* unconventionalmagnets.com — design 19 del registro (01/09/2026)
   Carta millimetrata, inchiostro seppia, verderame. Nessun JS. */

@font-face { font-family: "Sora"; font-weight: 700; font-style: normal; font-display: swap;
  src: url("../fonts/sora-700-latin.woff2") format("woff2"); }
@font-face { font-family: "Source Sans 3"; font-weight: 400; font-style: normal; font-display: swap;
  src: url("../fonts/sourcesans3-400-latin.woff2") format("woff2"); }
@font-face { font-family: "Source Sans 3"; font-weight: 600; font-style: normal; font-display: swap;
  src: url("../fonts/sourcesans3-600-latin.woff2") format("woff2"); }
@font-face { font-family: "Fira Mono"; font-weight: 400; font-style: normal; font-display: swap;
  src: url("../fonts/firamono-400-latin.woff2") format("woff2"); }
@font-face { font-family: "Fira Mono"; font-weight: 500; font-style: normal; font-display: swap;
  src: url("../fonts/firamono-500-latin.woff2") format("woff2"); }

:root {
  --paper: #EEF2DA;
  --paper-deep: #E2E8C9;
  --ink: #3A2A1A;
  --verdigris: #0E9AA7;
  --verdigris-ink: #0B6A73;
  --dust: #7D7264;
  --grid: rgba(58, 42, 26, 0.10);
  --col: 72ch;
  --gap: clamp(1.25rem, 3.5vw, 2.5rem);
  --rule: 1.5px solid var(--ink);
  --fig: 1.5px;
  --display: "Sora", "Trebuchet MS", Arial, sans-serif;
  --text: "Source Sans 3", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: "Fira Mono", Consolas, "Courier New", monospace;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: var(--text); font-size: 1.0625rem; line-height: 1.6;
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--verdigris-ink); text-decoration: underline; text-decoration-thickness: 1.5px; text-underline-offset: 0.2em; }
a:hover { text-decoration-thickness: 2.5px; }
h1, h2, h3 { font-family: var(--display); line-height: 1.15; letter-spacing: -0.01em; margin: 0 0 0.5em; }
h1 { font-size: clamp(1.9rem, 4.5vw, 2.75rem); }
h2 { font-size: clamp(1.4rem, 3vw, 1.75rem); margin-top: 2.2em; padding-top: 0.6em; border-top: var(--rule); }
h3 { font-size: 1.15rem; margin-top: 1.6em; }
p, ul, ol { margin: 0 0 1em; }
li { margin-bottom: 0.35em; }
code, kbd { font-family: var(--mono); font-size: 0.92em; }
blockquote { margin: 1.2em 0; padding: 0.2em 0 0.2em 1em; border-left: 4px solid var(--verdigris); }
blockquote p { margin-bottom: 0.4em; }
blockquote cite { font-family: var(--mono); font-size: 0.85em; color: var(--dust); font-style: normal; }
hr { border: 0; border-top: var(--rule); margin: 2em 0; }

/* Testata */
.masthead { border-bottom: var(--rule); background: var(--paper-deep); }
.masthead .wrap { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.6rem var(--gap); padding: 0.9rem var(--gap); max-width: calc(var(--col) + 2 * var(--gap)); margin: 0 auto; }
.brand { font-family: var(--display); font-weight: 700; font-size: 1.15rem; text-decoration: none; color: var(--ink); }
.brand small { font-family: var(--mono); font-weight: 400; font-size: 0.72rem; color: var(--dust); display: block; }
.nav { display: flex; flex-wrap: wrap; gap: 0.2rem 1rem; margin-left: auto; font-family: var(--mono); font-size: 0.85rem; }
.nav a { color: var(--ink); text-decoration: none; border-bottom: 1.5px solid transparent; }
.nav a:hover, .nav a[aria-current="page"] { border-bottom-color: var(--verdigris); }

/* Colonna */
.page { max-width: calc(var(--col) + 2 * var(--gap)); margin: 0 auto; padding: 2rem var(--gap) 3rem; }
.breadcrumb { font-family: var(--mono); font-size: 0.8rem; color: var(--dust); margin-bottom: 1.2rem; }
.breadcrumb ol { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 0.4rem; }
.breadcrumb li + li::before { content: "▸"; margin-right: 0.4rem; color: var(--verdigris); }
.breadcrumb a { color: var(--dust); text-decoration: none; }
.meta { font-family: var(--mono); font-size: 0.82rem; color: var(--dust); margin: 0 0 1.4rem; }
.meta span + span::before { content: " · "; }
.answer { font-size: 1.2rem; line-height: 1.5; border-top: var(--rule); border-bottom: var(--rule); padding: 1rem 0; margin: 0 0 1.5rem; }

/* Key facts, parts, prodotto */
.facts, .parts, .product, .toc, .sources { font-size: 0.95rem; }
.facts { background: var(--paper-deep); padding: 1rem 1.2rem; margin: 0 0 1.5rem; border-left: 4px solid var(--verdigris); }
.facts h2, .facts h3 { border: 0; margin: 0 0 0.5rem; padding: 0; font-size: 0.85rem; font-family: var(--mono); font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; color: var(--verdigris-ink); }
.facts ul { margin: 0; padding-left: 1.1rem; }
.toc { border: var(--rule); padding: 0.8rem 1.2rem; margin: 0 0 1.5rem; }
.toc h2 { border: 0; margin: 0 0 0.4rem; padding: 0; font-family: var(--mono); font-size: 0.85rem; font-weight: 500; text-transform: uppercase; letter-spacing: 0.06em; }
.toc ol { margin: 0; padding-left: 1.3rem; columns: 2; column-gap: var(--gap); }
.toc li { break-inside: avoid; }
table { border-collapse: collapse; width: 100%; margin: 0 0 1.4em; font-size: 0.95rem; }
th, td { text-align: left; vertical-align: top; padding: 0.45em 0.6em; border-bottom: 1px solid var(--grid); }
th { font-family: var(--mono); font-weight: 500; font-size: 0.8rem; letter-spacing: 0.04em; text-transform: uppercase; border-bottom: var(--rule); }
.table-wrap { overflow-x: auto; margin: 0 0 1.4em; }
.table-wrap table { margin: 0; min-width: 32rem; }
.product { border: var(--rule); padding: 1rem 1.2rem; margin: 2rem 0; background: var(--paper-deep); }
.product h3 { margin: 0 0 0.4rem; font-family: var(--mono); font-size: 0.85rem; font-weight: 500; text-transform: uppercase; letter-spacing: 0.06em; color: var(--verdigris-ink); }
.product p:last-child { margin: 0; font-size: 0.9rem; color: var(--dust); }
.sources { border-top: var(--rule); margin-top: 2.5rem; padding-top: 1rem; }
.sources h2 { border: 0; margin: 0 0 0.6rem; padding: 0; font-size: 1.1rem; }
.sources ol { padding-left: 1.3rem; word-break: break-word; }
.source-line { font-family: var(--mono); font-size: 0.78rem; color: var(--dust); margin: -0.6em 0 1.4em; }
.source-line::before { content: "Source ▸ "; color: var(--verdigris-ink); }
.next { margin: 2.5rem 0 0; padding: 1rem 1.2rem; border: var(--rule); font-family: var(--mono); font-size: 0.9rem; }

/* Figura — lo schema d'esperimento */
figure.schematic { margin: 1.5rem 0 2rem; border: var(--rule); background:
  linear-gradient(var(--grid) 1px, transparent 1px) 0 0 / 1rem 1rem,
  linear-gradient(90deg, var(--grid) 1px, transparent 1px) 0 0 / 1rem 1rem,
  var(--paper-deep); }
figure.schematic svg, figure.schematic img { width: 100%; height: auto; }
figure.schematic figcaption { font-family: var(--mono); font-size: 0.8rem; padding: 0.6rem 0.9rem; border-top: 1px solid var(--grid); background: var(--paper); }
figure.schematic figcaption b { font-weight: 500; color: var(--verdigris-ink); }
.legend { list-style: none; padding: 0; margin: 0 0 1.5rem; font-family: var(--mono); font-size: 0.85rem; display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: 0.2rem 1rem; }
.legend li::before { content: attr(data-n); display: inline-block; min-width: 1.6em; color: var(--verdigris-ink); font-weight: 500; }
figure.photo { margin: 1.5rem 0 2rem; }
figure.photo figcaption { font-family: var(--mono); font-size: 0.78rem; color: var(--dust); padding-top: 0.4rem; }

/* FAQ */
.faq h3 { margin-top: 1.2em; }
.faq h3::before { content: "Q "; font-family: var(--mono); color: var(--verdigris-ink); font-weight: 500; }

/* Footer */
.colophon { border-top: var(--rule); background: var(--paper-deep); margin-top: 2rem; }
.colophon .wrap { max-width: calc(var(--col) + 2 * var(--gap)); margin: 0 auto; padding: 1.4rem var(--gap) 2rem; font-size: 0.88rem; }
.colophon p { margin: 0 0 0.5rem; }
.colophon .legal { font-family: var(--mono); font-size: 0.78rem; color: var(--dust); }
.colophon nav a { margin-right: 1rem; }

@media (max-width: 40rem) {
  body { font-size: 1rem; }
  .toc ol { columns: 1; }
  .nav { margin-left: 0; }
}
@media print {
  .masthead, .colophon nav, .next { display: none; }
  a { color: inherit; text-decoration: none; }
}