/*
 * monografiak.works — the text is the design.
 * One stylesheet, no web fonts, no JavaScript. Everything readable without CSS.
 */

:root {
  /* Ikurriña palette, tuned for WCAG AA text contrast */
  --bg: #fcfbf8;
  --text: #161616;
  --muted: #595959;
  --rule: #dcd8d0;
  --accent: #b3121f;   /* gorria: red */
  --green: #00673a;    /* berdea: green */
  --surface: #f3f1eb;
  --focus: #00673a;

  --measure: 40rem;
  --font-text: "Iowan Old Style", "Charter", "Sitka Text", "Palatino Linotype", Cambria, Georgia, serif;
  --font-math: "STIX Two Math", "Latin Modern Math", "Cambria Math", math;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212;
    --text: #ece9e3;
    --muted: #a8a49c;
    --rule: #3a3936;
    --accent: #ff8a7a;
    --green: #5fd19a;
    --surface: #1c1c1b;
    --focus: #5fd19a;
  }
}

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

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

body {
  margin: 0;
  border-top: 6px solid var(--accent);
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-text);
  font-size: clamp(1.0625rem, 0.95rem + 0.45vw, 1.25rem);
  line-height: 1.6;
  font-kerning: normal;
  font-variant-numeric: oldstyle-nums proportional-nums;
  hyphens: auto;
  overflow-wrap: break-word;
}

/* ---------- Layout ---------- */

.wrap {
  max-width: var(--measure);
  margin-inline: auto;
  padding-inline: 1rem;
}

.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 1rem;
  top: 1rem;
  background: var(--bg);
  padding: 0.5rem 0.75rem;
  outline: 2px solid var(--focus);
  z-index: 10;
}

.site-header {
  padding-block: 1.5rem 0;
  font-size: 0.875em;
}
.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 0.75rem;
}
.site-header a { text-decoration: none; }
.site-header .brand { font-weight: 600; letter-spacing: 0.01em; color: var(--text); display: inline-flex; align-items: center; gap: 0.5rem; }
.mark { color: var(--accent); flex: none; }
.eu { color: var(--green); font-weight: 400; font-style: italic; font-size: 0.85em; letter-spacing: 0; text-transform: none; }
.eu::before { content: "· "; color: var(--muted); font-style: normal; }
.site-header nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 1.25rem; }

main { padding-block: 2.5rem 4rem; }

.site-footer {
  font-size: 0.8125em;
  color: var(--muted);
  padding-block: 0 3rem;
}
.site-footer .wrap { border-top: 1px solid var(--rule); padding-top: 1rem; }
.site-footer p { margin: 0.25rem 0; }

/* ---------- Text ---------- */

a { color: var(--accent); text-underline-offset: 0.15em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: 2px; }

h1, h2, h3, h4 {
  line-height: 1.2;
  font-weight: 600;
  text-wrap: balance;
  hyphens: manual;
}
h1 { font-size: 2.25em; margin: 0 0 0.5rem; letter-spacing: -0.01em; }
h2 { font-size: 1.375em; margin: 3rem 0 0.75rem; }
h3 { font-size: 1.125em; margin: 2rem 0 0.5rem; }
h2 .secno, h3 .secno { color: var(--accent); font-weight: 400; margin-right: 0.5em; font-variant-numeric: lining-nums; }

p { margin: 0 0 1rem; text-wrap: pretty; }

small, .meta { color: var(--muted); font-size: 0.875em; }

abbr[title] { text-decoration: none; font-variant: all-small-caps; letter-spacing: 0.03em; }

strong { font-weight: 600; }

hr { border: 0; border-top: 1px solid var(--rule); margin: 2.5rem 0; }

ul, ol { padding-left: 1.5rem; margin: 0 0 1rem; }
li { margin-bottom: 0.35rem; }

code, kbd, samp, pre {
  font-family: var(--font-mono);
  font-size: 0.85em;
  font-variant-numeric: normal;
}
:not(pre) > code { background: var(--surface); padding: 0.1em 0.3em; border-radius: 3px; }
pre {
  background: var(--surface);
  padding: 1rem;
  overflow-x: auto;
  line-height: 1.45;
  border-radius: 4px;
  hyphens: none;
}

blockquote {
  margin: 1.5rem 0;
  padding-left: 1.25rem;
  border-left: 2px solid var(--rule);
  color: var(--muted);
}

/* ---------- Monograph front matter ---------- */

.kicker {
  font-size: 0.8125em;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green);
  font-weight: 600;
  margin-bottom: 0.75rem;
}
.subtitle { font-size: 1.25em; font-style: italic; margin: 0 0 1.5rem; color: var(--muted); line-height: 1.35; }
.byline { font-size: 0.9375em; margin-bottom: 2rem; }
.byline dl { display: grid; grid-template-columns: max-content 1fr; gap: 0.15rem 1rem; margin: 0; }
.byline dt { color: var(--muted); }
.byline dd { margin: 0; }

.abstract {
  border-top: 3px solid var(--accent);
  border-bottom: 1px solid var(--green);
  padding-block: 1rem;
  margin-bottom: 2rem;
}
.abstract h2 { font-size: 0.8125em; letter-spacing: 0.08em; text-transform: uppercase; margin: 0 0 0.5rem; color: var(--muted); }
.abstract p:last-child { margin-bottom: 0; }

.toc { font-size: 0.9375em; margin-bottom: 2rem; }
.toc h2 { font-size: 0.8125em; letter-spacing: 0.08em; text-transform: uppercase; margin: 0 0 0.5rem; color: var(--muted); }
.toc ol { list-style: none; padding: 0; }
.toc li { margin-bottom: 0.2rem; }
.toc a { text-decoration: none; }
.toc a:hover { text-decoration: underline; }

/* ---------- Blocks: math ---------- */

math { font-family: var(--font-math); font-size: 1.05em; }

.eq {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 1rem;
  margin: 1.5rem 0;
  overflow-x: auto;
  overflow-y: hidden;
  padding-block: 0.25rem;
}
.eq math[display="block"] { margin: 0; }
.eq .eq-num { color: var(--muted); font-variant-numeric: lining-nums; }

/* ---------- Blocks: figures and images ---------- */

figure { margin: 2rem 0; }
figure img, figure svg { display: block; max-width: 100%; height: auto; margin-inline: auto; }
figcaption { font-size: 0.875em; color: var(--muted); margin-top: 0.75rem; line-height: 1.5; }
figcaption b { color: var(--text); font-weight: 600; }

/* Wide figures may break out of the text column on large screens */
figure.wide { margin-inline: calc(50% - min(50vw, 30rem) + 1rem); }

/* ---------- Blocks: notes, definitions, tables ---------- */

.note, .definition {
  margin: 1.5rem 0;
  padding: 0.75rem 1rem;
  background: var(--surface);
  border-left: 3px solid var(--accent);
}
.note > :last-child, .definition > :last-child { margin-bottom: 0; }
.note .label, .definition .label { font-weight: 600; font-style: normal; }

.table-wrap { overflow-x: auto; margin: 1.5rem 0; }
table { border-collapse: collapse; width: 100%; font-size: 0.875em; font-variant-numeric: lining-nums tabular-nums; }
caption { caption-side: bottom; text-align: left; color: var(--muted); padding-top: 0.75rem; }
th, td { text-align: left; vertical-align: top; padding: 0.5rem 0.75rem 0.5rem 0; border-bottom: 1px solid var(--rule); }
thead th { border-bottom: 2px solid var(--text); font-weight: 600; }

/* ---------- References & citation ---------- */

.references ol { padding-left: 2rem; font-size: 0.9375em; }
.references li { margin-bottom: 0.6rem; }

.cite pre { white-space: pre-wrap; }

/* ---------- Works index ---------- */

.lede { font-size: 1.25em; line-height: 1.45; margin-bottom: 2.5rem; }
.works { list-style: none; padding: 0; margin: 0; }
.works li { border-top: 1px solid var(--rule); padding-block: 1.25rem; }
.works li:first-child { border-top: 3px solid var(--accent); }
.works .no { color: var(--muted); font-size: 0.875em; font-variant-numeric: lining-nums; }
.works h3 { margin: 0.25rem 0 0.25rem; font-size: 1.375em; }
.works h3 a { text-decoration: none; color: var(--text); }
.works h3 a:hover { color: var(--accent); }
.works p { margin: 0.25rem 0 0; }

/* ---------- Motion & print ---------- */

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

@media print {
  :root { --bg: #fff; --text: #000; --muted: #444; --accent: #000; --surface: #f3f3f3; }
  body { font-size: 11pt; }
  body { border-top: 0; }
  .site-header nav, .skip, .toc { display: none; }
  a { color: inherit; text-decoration: none; }
  .references a::after { content: " <" attr(href) ">"; font-size: 0.85em; }
  h2, h3 { break-after: avoid; }
  figure, .eq, table { break-inside: avoid; }
}

/* Home masthead: never split the name mid-word */
.masthead { font-size: clamp(1.9rem, 9vw, 2.75rem); overflow-wrap: normal; hyphens: none; }
.masthead .dot { color: var(--accent); }
.eq > math { min-width: 0; max-width: 100%; overflow-x: auto; }