/* =========================================================================
   Far As the Water Went — museum stylesheet
   A quiet, paper-toned house for 36 works. Built by build.py.
   ========================================================================= */

:root {
  --paper:      #f4f1e9;
  --paper-deep: #ece7da;
  --card:       #faf8f2;
  --ink:        #232019;
  --ink-soft:   #5f584a;
  --ink-faint:  #8c8473;
  --rule:       #d6cfbd;
  --rule-soft:  #e4ddcc;
  --accent:     #9c4f33;
  --accent-dim: #b97a5f;
  --shadow:     rgba(35, 32, 25, 0.10);

  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --mono:  "JetBrains Mono", "SF Mono", "Cascadia Mono", Menlo, Consolas, "Courier New", monospace;

  /* modality hues */
  --m-visual-code:   #3a6ea5;
  --m-visual-static: #6b8f3a;
  --m-linguistic:    #9c4f33;
  --m-procedural:    #7a5ba6;
  --m-sonic:         #b08524;
  --m-hybrid:        #3f8c7a;
  --m-meta:          #878073;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

/* ---- shared layout ------------------------------------------------------ */

.wrap        { max-width: 1180px; margin: 0 auto; padding: 0 32px; }
.column      { max-width: 720px;  margin: 0 auto; padding: 0 32px; }

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

/* ---- hero / atrium ------------------------------------------------------ */

.hero {
  border-bottom: 1px solid var(--rule);
  padding: 96px 0 70px;
  background:
    radial-gradient(120% 80% at 50% 0%, rgba(156,79,51,0.05), transparent 70%);
}
.hero .eyebrow { display: block; text-align: center; margin-bottom: 26px; }
.hero h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.6rem, 6.5vw, 4.7rem);
  line-height: 1.04;
  letter-spacing: -0.01em;
  text-align: center;
  margin: 0 0 22px;
}
.hero .sub {
  text-align: center;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.hero .sub span { white-space: nowrap; }
.hero .sub i { font-style: normal; color: var(--rule); margin: 0 12px; }

/* ---- introduction / entrance wall --------------------------------------- */

.intro {
  padding: 84px 0 76px;
  border-bottom: 1px solid var(--rule);
  background: radial-gradient(120% 70% at 50% 0%, rgba(156,79,51,0.05), transparent 72%);
}
.intro .eyebrow { display: block; margin-bottom: 28px; }
.intro p { margin: 0 0 1.2em; }
.intro .lead {
  font-size: clamp(1.42rem, 3vw, 1.92rem);
  line-height: 1.38;
  letter-spacing: -0.005em;
  color: var(--ink);
  margin-bottom: 1.05em;
}
.intro .turn {
  font-size: clamp(1.18rem, 2.4vw, 1.4rem);
  line-height: 1.44;
  font-style: italic;
  color: var(--accent);
  border-left: 2px solid var(--accent);
  padding-left: 24px;
  margin: 1.5em 0;
}
.intro p:last-child { margin-bottom: 0; }

/* ---- curatorial essay --------------------------------------------------- */

.essay { padding: 72px 0 66px; border-top: 1px solid var(--rule); }
.essay h2 {
  font-weight: 400;
  font-size: 1.05rem;
  font-family: var(--mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 30px;
}
.essay p { margin: 0 0 1.25em; }
.essay p:first-of-type { font-size: 1.16rem; }
.essay p:first-of-type::first-letter {
  font-size: 3.4rem;
  line-height: 0.8;
  float: left;
  margin: 0.06em 0.09em 0 0;
  color: var(--accent);
  font-weight: 400;
}
.essay .sign {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
  margin-top: 2.4em;
}

/* ---- filter bar --------------------------------------------------------- */

.controls { padding: 46px 0 8px; }
.controls .label-row {
  display: flex; align-items: baseline; gap: 16px;
  flex-wrap: wrap; margin-bottom: 16px;
}
.controls h2 {
  font-weight: 400; margin: 0;
  font-size: 1.7rem;
}
.controls .count {
  font-family: var(--mono); font-size: 12px;
  color: var(--ink-faint); letter-spacing: 0.06em;
}
.filter-group {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-bottom: 10px; align-items: center;
}
.filter-group > .gl {
  font-family: var(--mono); font-size: 10.5px;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink-faint); margin-right: 6px; min-width: 74px;
}
.chip {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  padding: 6px 13px;
  border: 1px solid var(--rule);
  background: transparent;
  color: var(--ink-soft);
  border-radius: 999px;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}
.chip:hover { border-color: var(--ink-faint); color: var(--ink); }
.chip.active {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.chip .dot {
  display: inline-block; width: 7px; height: 7px;
  border-radius: 50%; margin-right: 6px; vertical-align: 0.5px;
}

/* ---- gallery grid ------------------------------------------------------- */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(286px, 1fr));
  gap: 1px;
  background: var(--rule-soft);
  border: 1px solid var(--rule-soft);
  margin: 26px 0 12px;
}
.card {
  background: var(--card);
  padding: 26px 24px 22px;
  display: flex; flex-direction: column;
  min-height: 218px;
  border-left: 3px solid var(--mod, var(--rule));
  transition: background .16s, transform .16s;
  position: relative;
}
.card:hover { background: #fff; transform: translateY(-2px); z-index: 2; }
.card .top {
  display: flex; justify-content: space-between; align-items: baseline;
  font-family: var(--mono); font-size: 11px;
  color: var(--ink-faint); letter-spacing: 0.05em;
  margin-bottom: 14px;
}
.card .num { color: var(--ink-faint); }
.card .yr  { color: var(--ink-faint); }
.card h3 {
  font-weight: 400; font-size: 1.34rem; line-height: 1.18;
  margin: 0 0 10px;
}
.card .cap {
  font-size: 0.95rem; color: var(--ink-soft); line-height: 1.5;
  margin: 0 0 auto;
}
.card .tags {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-top: 18px;
}
.tag {
  font-family: var(--mono); font-size: 9.5px;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 3px 8px; border-radius: 3px;
  background: var(--paper-deep); color: var(--ink-soft);
}
.tag.mod { color: #fff; }
.card .seriesflag {
  position: absolute; top: 0; right: 0;
  font-family: var(--mono); font-size: 9px;
  letter-spacing: 0.12em; text-transform: uppercase;
  background: var(--accent); color: var(--paper);
  padding: 4px 9px;
}
.empty-note {
  grid-column: 1 / -1; padding: 60px 24px; text-align: center;
  color: var(--ink-faint); font-style: italic;
}

/* ---- curated paths ------------------------------------------------------ */

.paths { padding: 64px 0 78px; border-top: 1px solid var(--rule); margin-top: 64px; }
.paths > h2 {
  font-weight: 400; font-size: 1.7rem; margin: 0 0 8px;
}
.paths > .lede {
  color: var(--ink-soft); max-width: 640px; margin: 0 0 36px;
}
.path {
  border-top: 1px solid var(--rule);
  padding: 26px 0;
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 34px;
}
.path .pname { font-size: 1.28rem; font-weight: 400; margin: 0; }
.path .pname .kind {
  display: block; font-family: var(--mono);
  font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 7px;
}
.path .pdesc { color: var(--ink-soft); font-size: 0.97rem; }
.path .pdesc .steps {
  margin-top: 12px; font-family: var(--mono); font-size: 12px;
  letter-spacing: 0.02em;
}
.path .pdesc .steps a { color: var(--ink-soft); }
.path .pdesc .steps a:hover { color: var(--accent); }
.path .pdesc .steps .arrow { color: var(--rule); margin: 0 5px; }

/* ---- colophon ----------------------------------------------------------- */

.colophon {
  background: var(--paper-deep);
  border-top: 1px solid var(--rule);
  padding: 64px 0 80px;
}
.colophon h2 {
  font-weight: 400; font-size: 1.4rem; margin: 0 0 24px;
}
.colophon .grid2 {
  display: grid; grid-template-columns: 1fr 1fr; gap: 44px;
}
.colophon h3 {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink-faint); margin: 0 0 10px;
}
.colophon p { font-size: 0.96rem; color: var(--ink-soft); margin: 0 0 1em; }
.colophon dl { margin: 0; font-size: 0.92rem; }
.colophon dt {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.05em;
  color: var(--ink); margin-top: 11px;
}
.colophon dd { margin: 2px 0 0; color: var(--ink-soft); }
.footer-line {
  text-align: center; font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.1em; color: var(--ink-faint);
  padding: 34px 0; border-top: 1px solid var(--rule);
}

/* NAL platform footer — the museum is one lab among the platform's services */
.nal-bar {
  border-top: 1px solid var(--rule);
  background: var(--paper-deep);
  padding: 26px 0 28px;
}
.nal-bar .nal-tag {
  display: block; font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-faint); margin-bottom: 13px;
}
.nal-bar .nal-links {
  display: flex; flex-wrap: wrap; gap: 9px 22px; align-items: baseline;
}
.nal-bar .nal-links a {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.03em;
  color: var(--ink-soft);
}
.nal-bar .nal-links a:hover { color: var(--accent); }
.nal-bar .nal-links a.home {
  color: var(--accent); padding-right: 22px;
  border-right: 1px solid var(--rule);
}

/* =========================================================================
   DETAIL PAGE  (works/NNNN.html)
   ========================================================================= */

.detail-top {
  border-bottom: 1px solid var(--rule);
  padding: 22px 0;
  font-family: var(--mono); font-size: 11.5px;
  letter-spacing: 0.06em;
}
.detail-top .wrap { display: flex; justify-content: space-between; gap: 20px; }
.detail-top a { color: var(--ink-soft); }
.detail-top .back::before { content: "← "; color: var(--rule); }

.label {
  padding: 64px 0 40px;
}
.label .eyebrow { display: block; margin-bottom: 20px; }
.label h1 {
  font-weight: 400;
  font-size: clamp(2.1rem, 5vw, 3.3rem);
  line-height: 1.08;
  margin: 0 0 26px;
}
.label .statement {
  font-size: 1.16rem; color: var(--ink); margin: 0 0 30px;
}
.label .specs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--rule-soft);
  border: 1px solid var(--rule-soft);
  font-family: var(--mono);
}
.label .specs div { background: var(--paper); padding: 12px 14px; }
.label .specs dt {
  font-size: 9.5px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-faint); margin-bottom: 4px;
}
.label .specs dd { margin: 0; font-size: 12.5px; color: var(--ink); }

/* the vitrine — where the artifact is shown */
.vitrine { padding: 14px 0 70px; }
.vitrine .frame-label {
  font-family: var(--mono); font-size: 10.5px;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink-faint); margin-bottom: 12px;
  display: flex; justify-content: space-between; align-items: baseline;
}
.vitrine .frame-label .hint { text-transform: none; letter-spacing: 0.02em; }

.frame {
  border: 1px solid var(--rule);
  background: #fff;
  box-shadow: 0 18px 40px -28px var(--shadow);
}
iframe.artifact {
  display: block; width: 100%; height: 660px; border: 0;
  background: #fff;
}

/* text / code artifacts rendered into a <pre> vitrine */
pre.artifact {
  margin: 0;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.6;
  color: #2a2620;
  background: #fffdf7;
  padding: 30px 32px;
  overflow: auto;
  max-height: 760px;
}
pre.artifact.wrap-prose { white-space: pre-wrap; }
pre.artifact.mono       { white-space: pre; }

/* abc score */
.score-pane { padding: 24px 26px; }
.abc-render { overflow-x: auto; }
.abc-controls { margin-top: 16px; }
.abc-controls button {
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 9px 20px; cursor: pointer;
  background: var(--ink); color: var(--paper);
  border: 1px solid var(--ink); border-radius: 3px;
}
.abc-controls button:hover { background: var(--accent); border-color: var(--accent); }
.abc-controls .note {
  font-family: var(--mono); font-size: 10.5px; color: var(--ink-faint);
  margin-top: 10px;
}
.abc-source {
  margin-top: 18px; border-top: 1px dashed var(--rule); padding-top: 14px;
}
.abc-source summary {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--ink-faint); cursor: pointer;
}

/* filesystem-poem tree */
.treepoem {
  font-family: var(--mono); font-size: 14px; line-height: 1.85;
  padding: 34px 36px; background: #fffdf7;
}
.treepoem .branch { color: var(--accent); }
.treepoem .twig   { color: var(--ink-soft); }
.treepoem .leaf   { color: var(--ink); }
.treepoem .indent { color: var(--rule); }

/* curator's note + how-to-view */
.aside {
  padding: 0 0 64px;
}
.aside .block { margin-bottom: 30px; }
.aside h3 {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink-faint); margin: 0 0 9px;
}
.aside p { margin: 0; color: var(--ink-soft); font-size: 1rem; }

/* who made this — the models */
.aside dl.crew {
  margin: 0 0 10px; font-family: var(--mono);
  border-top: 1px solid var(--rule-soft);
}
.aside .crewrow {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 6px 0; border-bottom: 1px solid var(--rule-soft);
}
.aside .crewrow dt { font-size: 11.5px; color: var(--ink); }
.aside .crewrow dd { margin: 0; font-size: 11px; color: var(--ink-faint);
  letter-spacing: 0.06em; }
.aside .crewnote { font-size: 0.82rem; color: var(--ink-faint);
  margin-top: 8px; }
.colophon .rolemodel { color: var(--ink-faint); font-weight: normal;
  letter-spacing: 0.04em; }

/* prev / next */
.pager {
  border-top: 1px solid var(--rule);
  display: grid; grid-template-columns: 1fr 1fr;
}
.pager a {
  padding: 30px 0; color: var(--ink-soft);
  font-family: var(--mono); font-size: 12px;
}
.pager a .dir {
  display: block; font-size: 9.5px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--ink-faint); margin-bottom: 6px;
}
.pager a.next { text-align: right; }
.pager a:hover { color: var(--accent); text-decoration: none; }
.pager a.next:hover .ttl { text-decoration: underline; }
.pager a.disabled { visibility: hidden; }

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

@media (max-width: 720px) {
  body { font-size: 16.5px; }
  .wrap, .column { padding: 0 20px; }
  .hero { padding: 64px 0 48px; }
  .path { grid-template-columns: 1fr; gap: 12px; }
  .colophon .grid2 { grid-template-columns: 1fr; gap: 30px; }
  iframe.artifact { height: 480px; }
  .grid { grid-template-columns: 1fr; }
}

/* ---- i18n: language switcher + reading-load tag ---- */
.langs { margin-top: 14px; font-size: 12.5px; letter-spacing: .04em; color: var(--ink-soft, #777); }
.langs a { color: inherit; text-decoration: none; border-bottom: 1px dotted currentColor; }
.langs a:hover { color: var(--ink, #222); }
.langs .on { color: var(--ink, #222); font-weight: 600; }
.detail-top .langs { display: inline; margin: 0 0 0 10px; }
.tag.lng { opacity: .75; font-style: italic; }