/* lineara.eu. Light theme only. Layers: reset, base, layout, components, utilities.

   Palette: the objects themselves. Fired clay (terracotta) for tablets and
   documents, ochre for the signs, a deep Aegean blue for the map and the
   sites, a warm paper ground, charcoal ink. Colour carries meaning; the
   accent for navigation and links is the blue. Contrast holds AA on paper. */
@layer reset, base, layout, components, utilities;

@view-transition { navigation: auto; }

@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  * { margin: 0; }
  html { color-scheme: light; -moz-text-size-adjust: none; -webkit-text-size-adjust: none; text-size-adjust: none; }
  body { min-block-size: 100vh; line-height: 1.5; overflow-wrap: break-word; }
  h1, h2, h3, h4 { text-wrap: balance; line-height: 1.15; }
  p, li, figcaption, dd { text-wrap: pretty; }
  ul[role="list"], ol[role="list"] { list-style: none; }
  img, picture, svg, video { display: block; max-inline-size: 100%; block-size: auto; }
  input, button, textarea, select { font: inherit; }
  :target { scroll-margin-block: 5ex; }
  a:not([class]) { text-decoration-skip-ink: auto; color: currentColor; }
}

@layer base {
  :root {
    /* ink and ground */
    --ink: #26221d;
    --muted: #5a544c;
    --line: #d8cdb9;
    --paper: #f6f1e7;
    --ground: #ede4d2;
    --card: #fbf8f1;
    /* the accent: navigation, links, focus */
    --accent: #1f4e79;
    --accent-ink: #1a4266;
    --focus: #1f4e79;
    /* clay: documents and tablets */
    --clay: #b5462a;
    --clay-ink: #8f3419;
    --clay-tint: #f3ded3;
    /* ochre: signs */
    --ochre: #c48f1f;
    --ochre-ink: #6f5010;
    --ochre-tint: #f3e6c4;
    --ochre-ground: #f8efdb;
    /* sea and land: the map */
    --sea: #2a679b;
    --sea-tint: #d6e4ee;
    --land: #d9b58c;
    --land-line: #a97f55;
    --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, "Times New Roman", serif;
    --sans: system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
    --mono: ui-monospace, Menlo, Consolas, monospace;
    --step--1: clamp(0.83rem, 0.8rem + 0.2vw, 0.95rem);
    --step-0: clamp(1rem, 0.95rem + 0.3vw, 1.15rem);
    --step-1: clamp(1.2rem, 1.1rem + 0.6vw, 1.5rem);
    --step-2: clamp(1.5rem, 1.3rem + 1.2vw, 2.2rem);
    --step-3: clamp(2rem, 1.6rem + 2.4vw, 3.4rem);
    --space: clamp(1rem, 0.8rem + 1vw, 1.6rem);
    --space-l: clamp(2rem, 1.5rem + 2.5vw, 4rem);
    --measure: 66ch;
    --wide: 1360px;
  }
  body {
    font-family: var(--sans);
    font-size: var(--step-0);
    color: var(--ink);
    background: var(--paper);
  }
  h1, h2, h3 { font-family: var(--serif); font-weight: 500; }
  h1 { font-size: var(--step-3); margin-block: 0 var(--space); }
  h2 { font-size: var(--step-2); margin-block: var(--space-l) var(--space); }
  h3 { font-size: var(--step-1); margin-block: var(--space) 0.5rem; }
  p { margin-block: 0 1em; }
  a { color: var(--accent-ink); text-decoration-color: color-mix(in srgb, var(--accent) 45%, transparent); text-underline-offset: 0.15em; }
  a:hover { text-decoration-color: var(--accent); }
  :focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 2px; }
  ul, ol { padding-inline-start: 1.4em; margin-block: 0 1em; }
  code { font-family: var(--mono); font-size: 0.92em; background: var(--ground); padding: 0.05em 0.3em; }
  blockquote { border-inline-start: 3px solid var(--ochre); padding-inline-start: 1em; color: var(--muted); }
  hr { border: 0; border-block-start: 1px solid var(--line); margin-block: var(--space-l); }
  dl.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr)); gap: 0.6rem var(--space); margin-block: var(--space); padding: var(--space); background: var(--clay-tint); border-inline-start: 4px solid var(--clay); }
  dl.facts dt { font-size: var(--step--1); color: var(--clay-ink); text-transform: uppercase; letter-spacing: 0.04em; }
  dl.facts dd { font-size: var(--step-0); }
}

@layer layout {
  .skip { position: absolute; inset-inline-start: 1rem; inset-block-start: -4rem; background: var(--ink); color: var(--paper); padding: 0.5rem 1rem; z-index: 10; }
  .skip:focus { inset-block-start: 1rem; }
  .site-head {
    display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem var(--space);
    padding: calc(var(--space) * 0.75) var(--space);
    max-inline-size: var(--wide); margin-inline: auto;
    border-block-end: 3px solid var(--clay);
  }
  .site-head-wrap {
    position: sticky; inset-block-start: 0; z-index: 20;
    background: color-mix(in srgb, var(--paper) 88%, transparent);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
  }
  .brand { display: inline-flex; align-items: center; gap: 0.6rem; font-family: var(--serif); font-size: var(--step-1); color: var(--ink); text-decoration: none; margin-inline-end: auto; }
  .brand .mark { inline-size: 2.4rem; block-size: 2.4rem; flex: none; }
  .site-head nav ul { display: flex; flex-wrap: wrap; gap: 0.25rem 1.2rem; list-style: none; padding: 0; margin: 0; }
  .site-head nav a { color: var(--ink); text-decoration: none; padding-block: 0.3rem; border-block-end: 2px solid transparent; }
  .site-head nav a[aria-current="page"] { border-block-end-color: var(--accent); color: var(--accent-ink); }
  .site-head nav a:hover { border-block-end-color: var(--line); }
  main { max-inline-size: var(--wide); margin-inline: auto; padding: var(--space) var(--space) var(--space-l); }
  .site-foot { max-inline-size: var(--wide); margin-inline: auto; padding: var(--space); border-block-start: 1px solid var(--line); color: var(--muted); font-size: var(--step--1); }
  .prose { max-inline-size: var(--measure); }
  .prose .fig, .prose .fig-signs, .prose .fig-numbers { max-inline-size: none; }
  .walk { max-inline-size: min(var(--measure), 100%); }
  .document, .sign-page { max-inline-size: 1100px; }
  .crumbs { color: var(--muted); font-size: var(--step--1); margin-block-end: 0.5rem; }
  .lede { font-size: var(--step-1); font-family: var(--serif); }
}

@layer components {
  /* front page */
  .hero { display: grid; gap: var(--space-l); align-items: center; margin-block: var(--space) var(--space-l); }
  .hero-pic { background: var(--ground); padding: var(--space); }
  .hero-pic img { inline-size: 100%; max-inline-size: 560px; block-size: auto; margin-inline: auto; mix-blend-mode: multiply; }
  .hero-copy h1 { font-size: var(--step-3); }
  .hero-copy p { font-size: var(--step-1); font-family: var(--serif); }
  .hero-note { font-size: var(--step--1); color: var(--muted); font-family: var(--sans); }
  @media (min-width: 900px) { .hero { grid-template-columns: minmax(0, 38%) 1fr; } }

  /* the band of sign tracings under the hero */
  .sign-band { margin-block: 0 var(--space-l); background: var(--ochre-tint); border-block: 1px solid var(--ochre); padding: 0.8rem var(--space) 0.6rem; }
  .sign-band ol { list-style: none; padding: 0; margin: 0; display: flex; justify-content: space-between; gap: 0.5rem; align-items: flex-end; }
  .sign-band li { text-align: center; flex: 1 1 0; min-inline-size: 0; }
  .sign-band img { block-size: clamp(2.6rem, 8vw, 5rem); inline-size: auto; margin-inline: auto; mix-blend-mode: multiply; }
  .sign-band .lab { display: block; font-size: var(--step--1); color: var(--ochre-ink); margin-block-start: 0.2rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .sign-band figcaption { color: var(--muted); font-size: var(--step--1); margin-block-start: 0.5rem; text-align: center; }
  @media (max-width: 600px) { .sign-band .lab { display: none; } }

  .three { display: grid; gap: var(--space); grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); }
  .card { display: block; text-decoration: none; color: var(--ink); border: 1px solid var(--line); border-block-start: 6px solid var(--card-hue, var(--accent)); background: var(--card); container-type: inline-size; }
  .card:hover { border-color: var(--card-hue, var(--accent)); }
  .card h2 { margin: var(--space) var(--space) 0.3rem; font-size: var(--step-1); color: var(--card-ink, var(--ink)); }
  .card p { color: var(--muted); margin: 0 var(--space) var(--space); }
  .card-pic { block-size: 14rem; display: grid; place-items: center; background: var(--card-tint, var(--ground)); overflow: hidden; }
  .card-pic picture { block-size: 100%; }
  .card-pic img, .card-pic svg { block-size: 100%; inline-size: auto; max-inline-size: 100%; object-fit: contain; }
  .card-map { --card-hue: var(--sea); --card-ink: var(--accent-ink); --card-tint: var(--sea-tint); }
  .card-strip { --card-hue: var(--clay); --card-ink: var(--clay-ink); --card-tint: var(--clay-tint); }
  .card-sign { --card-hue: var(--ochre); --card-ink: var(--ochre-ink); --card-tint: var(--ochre-ground); }
  .card-map svg { inline-size: 100%; block-size: auto; padding: 0; }
  .card-pic .photo { block-size: 100%; inline-size: 100%; object-fit: cover; }
  .mini-strip { display: flex; gap: 0.4rem; list-style: none; padding: 0.6rem; margin: 0; flex-wrap: wrap; justify-content: center; }
  .mini-strip img { block-size: 3.2rem; inline-size: auto; mix-blend-mode: multiply; }
  @container (min-width: 22rem) { .mini-strip img { block-size: 4rem; } }
  .card-sign img { block-size: 11rem; mix-blend-mode: multiply; }
  .two-links { display: flex; flex-wrap: wrap; gap: var(--space); margin-block: var(--space-l); font-family: var(--serif); font-size: var(--step-1); }

  /* map: relief photo under a thin coastline, terracotta pins scaled by document count.
     The raster is cut to the SVG window, so it is stretched to the viewBox (object-fit fill,
     preserveAspectRatio none) and the coastline sits on the photo's coast. */
  .map { inline-size: 100%; block-size: auto; background: var(--sea-tint); color: var(--land); border: 1px solid var(--line); display: block; }
  .map-wrap { margin-block: var(--space); }
  .map-figure { margin: 0; }
  .map-stack { position: relative; line-height: 0; }
  .map-stack .map-raster { position: absolute; inset: 0; display: block; margin: 0; }
  .map-stack .map-raster img { inline-size: 100%; block-size: 100%; object-fit: fill; display: block; border: 1px solid transparent; box-sizing: border-box; }
  .map-stack .map.over-raster { position: relative; background: transparent; }
  .map .land path { fill: none; stroke: rgba(255, 250, 240, 0.75); stroke-width: 1; }
  .map .pin circle { fill: var(--clay); fill-opacity: 0.92; stroke: var(--paper); stroke-width: 2.5; }
  .map .pin text { font: 16px var(--sans); font-weight: 600; fill: var(--ink); paint-order: stroke; stroke: var(--paper); stroke-width: 4px; stroke-linejoin: round; opacity: 0; pointer-events: none; }
  .map .pin:hover circle, .map .pin:focus circle { fill-opacity: 1; fill: var(--clay-ink); }
  .map .pin:hover text, .map .pin:focus text, .map .pin.lbl text { opacity: 1; }
  .map .pin.here circle { fill: var(--clay-ink); fill-opacity: 1; stroke-width: 3; }
  .map .pin.here text { opacity: 1; font-weight: 700; }
  .map-site { max-inline-size: 36rem; margin-block: var(--space); }
  .map-site .map { border-radius: 4px; }
  .map-note { color: var(--muted); font-size: var(--step--1); line-height: 1.4; }
  .map-note .credit { display: block; margin-block-start: 0.3rem; font-size: 0.85em; }
  /* On a phone the whole island is about 360 px wide: 16 px labels shrink to 5 px. Hide them; the list below carries the names. */
  @media (max-width: 40rem) {
    .map-stack .map .pin.lbl:not(.here) text { opacity: 0; }
  }
  .sites { columns: 18rem; list-style: none; padding: 0; }
  .sites li { break-inside: avoid; padding-block: 0.2rem; }
  .sites.compact { columns: 14rem; }
  .n { color: var(--muted); font-size: var(--step--1); }

  /* grids of documents and signs */
  .grid { list-style: none; padding: 0; display: grid; gap: var(--space); }
  .grid.docs { grid-template-columns: repeat(auto-fill, minmax(9.5rem, 1fr)); }
  .grid.docs a { text-decoration: none; display: block; color: var(--ink); }
  .thumb-box { display: block; block-size: 12rem; background: var(--ground); border-block-end: 3px solid var(--clay); overflow: hidden; padding: 0.4rem; }
  .thumb-box.no-img { display: grid; place-items: center; border-block-end-color: var(--line); }
  .thumb-box picture, .thumb-box img { block-size: 100%; inline-size: 100%; object-fit: contain; mix-blend-mode: multiply; }
  .thumb-box.no-img { color: var(--muted); font-size: var(--step--1); }
  .doc-id { display: block; margin-block-start: 0.4rem; font-weight: 600; color: var(--clay-ink); }
  .meta { display: block; color: var(--muted); font-size: var(--step--1); }
  .grid.signs { grid-template-columns: repeat(auto-fill, minmax(8rem, 1fr)); align-items: end; }
  .grid.signs a { text-decoration: none; display: block; text-align: center; color: var(--ink); }
  .grid.signs li { background: var(--ochre-ground); border: 1px solid var(--ochre-tint); padding: 0.6rem 0.4rem; }
  .grid.signs li:hover { border-color: var(--ochre); }
  .sign-box { display: block; block-size: calc(3rem * var(--size, 1)); max-block-size: 10rem; }
  .sign-box picture, .sign-box img { block-size: 100%; inline-size: 100%; object-fit: contain; mix-blend-mode: multiply; }
  .sign-box .no-img { display: grid; place-items: center; block-size: 100%; color: var(--muted); font-size: var(--step--1); }
  .grid .stat-n, .facts .stat-n, .sites .stat-n { white-space: normal; }
  .sign-label { display: block; font-weight: 600; margin-block-start: 0.3rem; color: var(--ochre-ink); }
  .grid.occ { grid-template-columns: repeat(auto-fill, minmax(7rem, 1fr)); }
  .grid.occ li { background: var(--ochre-ground); padding: 0.5rem; }
  .grid.occ img { block-size: 5rem; inline-size: auto; margin-inline: auto; mix-blend-mode: multiply; }
  .grid.occ a { text-decoration: none; display: block; text-align: center; color: var(--ink); }
  .sign-head { display: grid; gap: var(--space); grid-template-columns: minmax(8rem, 16rem) 1fr; align-items: start; }
  .sign-pic { background: var(--ochre-ground); border: 1px solid var(--ochre-tint); padding: var(--space); display: grid; place-items: center; }
  .sign-pic img { max-block-size: 18rem; inline-size: auto; mix-blend-mode: multiply; }
  .sign-page .facts { background: var(--ochre-ground); border-inline-start-color: var(--ochre); }
  .sign-page .facts dt { color: var(--ochre-ink); }
  .neighbours { display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: var(--space); }
  .neighbours ul { list-style: none; padding: 0; }
  .values { list-style: none; padding: 0; }
  .values li { padding-block: 0.2rem; }

  /* figures and strips: tracings sit on warm paper, never on white */
  .fig { margin-block: var(--space) var(--space-l); }
  .fig figcaption { color: var(--muted); font-size: var(--step--1); margin-block-start: 0.5rem; }
  .fig-tracing, .doc-tracing .fig { background: var(--ground); padding: var(--space); }
  .fig-tracing img, .doc-tracing img { inline-size: 100%; max-inline-size: 640px; block-size: auto; margin-inline: auto; mix-blend-mode: multiply; }
  .fig-object img { inline-size: 100%; max-inline-size: 560px; block-size: auto; margin-inline: auto; }
  .strip { list-style: none; padding: 0.6rem; display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: flex-end; background: var(--ochre-ground); }
  .strip li { text-align: center; inline-size: 6rem; }
  .strip img { block-size: 5rem; inline-size: auto; margin-inline: auto; mix-blend-mode: multiply; }
  .strip .lab { display: block; font-size: var(--step--1); color: var(--muted); margin-block-start: 0.2rem; }
  .strip-big li { inline-size: 9rem; }
  .strip-big img { block-size: 8rem; }
  .lines { list-style: none; padding: 0; }
  .lines li { padding-block: 0.35rem; border-block-end: 1px solid var(--ground); display: flex; gap: 1rem; align-items: baseline; flex-wrap: wrap; }
  .lineno { color: var(--muted); font-size: var(--step--1); min-inline-size: 4rem; }
  .line { display: inline-flex; flex-wrap: wrap; gap: 0.5rem 0.7rem; align-items: baseline; }
  .tok { display: inline-block; text-decoration: none; color: var(--ink); }
  .tok b { font-weight: 500; }
  .tok small { color: var(--muted); font-size: 0.7em; }
  .tok-number b, .big-line .tok-number b { color: var(--clay-ink); font-weight: 700; }
  .tok-divider { color: var(--line); }
  .tok-damage { color: var(--muted); }
  .tok-fraction b, .tok-unit b { font-style: italic; }
  .big-line { font-size: var(--step-1); }
  .words { display: flex; flex-wrap: wrap; gap: 0.5rem 1rem; }
  .word { font-family: var(--serif); font-size: var(--step-1); }
  .numbers { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; }
  .verdict { padding: 0.6rem 0.9rem; background: var(--ground); border-inline-start: 4px solid var(--line); }
  .verdict-balances { border-inline-start-color: #2f7a3a; }
  .verdict-explained { border-inline-start-color: var(--clay); }

  /* the numerals diagram on /known/ */
  .fig-numerals { background: var(--ground); padding: var(--space); }
  .fig-numerals svg { inline-size: 100%; max-inline-size: 640px; block-size: auto; margin-inline: auto; }

  /* statistics, placeholders */
  .stat-n { white-space: nowrap; }
  .table-wrap { overflow-x: auto; margin-block: var(--space); }
  table { border-collapse: collapse; font-size: var(--step--1); min-inline-size: 40rem; }
  th, td { text-align: start; vertical-align: top; padding: 0.4rem 0.6rem; border-block-end: 1px solid var(--line); }
  th { color: var(--clay-ink); }
  .placeholder { background: #fff3c4; border: 1px dashed #b98c00; padding: 0 0.3em; font-family: var(--mono); font-size: 0.85em; }
  .coming { background: var(--ground); border: 1px dashed var(--line); padding: 0.8rem 1rem; color: var(--muted); }
  .button { display: inline-block; padding: 0.6rem 1.1rem; border: 1px solid var(--clay-ink); color: var(--clay-ink); text-decoration: none; }
  .button:hover { background: var(--clay-ink); color: var(--paper); }
  .small { font-size: var(--step--1); color: var(--muted); }

  /* search */
  .search-box { margin-block: var(--space); }
  .search-box input, .search-box pagefind-input { inline-size: 100%; }
  #q { padding: 0.7rem 1rem; border: 1px solid var(--ink); background: var(--card); font-size: var(--step-1); }
  .quick { list-style: none; padding: 0; }
  .quick li { padding-block: 0.4rem; border-block-end: 1px solid var(--ground); }
  .quick .kind { color: var(--muted); font-size: var(--step--1); margin-inline-start: 0.5rem; }

  /* the hidden compare page */
  .compare-list { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-l); }
  .compare-list > li { background: var(--card); border: 1px solid var(--line); border-block-start: 6px solid var(--clay); padding: var(--space); }
  .compare-list h2 { margin-block: 0 0.6rem; font-size: var(--step-1); color: var(--clay-ink); }
  .compare-list .lac { background: transparent; }
  .compare-list .lac-title { display: none; }
}

@layer utilities {
  @media (prefers-reduced-motion: no-preference) {
    html { scroll-behavior: smooth; }
    a, .card { transition: border-color 150ms; }
  }
  @media (prefers-reduced-motion: reduce) {
    ::view-transition-group(*), ::view-transition-old(*), ::view-transition-new(*) { animation: none !important; }
  }
  @media print {
    .site-head nav, .skip, .button { display: none; }
  }
}