/* ===================================================================
   SIRISO LAB — JOURNAL & SERVICE PAGES (loaded after brut.css)
   Long-form reading in the Concrete Index language: paper, ink rules,
   Archivo headings, Instrument Serif accents, mono labels.
   No scripts: these pages are plain, fast HTML.
   =================================================================== */
.jn { --measure: 70ch; background: var(--paper); }
.jn main { display: block; }
.jn :focus-visible { outline: 3px solid var(--ink); outline-offset: 3px; }
.jn .dark :focus-visible { outline-color: var(--signal); }

.jn-wrap { width: 100%; max-width: 1320px; margin: 0 auto; padding: 0 var(--gut); }

/* ---------- header ---------- */
.jn-nav {
  position: sticky; top: 0; z-index: 50;
  display: grid; grid-template-columns: auto 1fr auto; align-items: stretch;
  min-height: var(--nav);
  background: var(--paper); border-bottom: var(--rule) solid var(--ink);
}
.jn-brand { display: flex; align-items: center; gap: 10px; padding: 0 var(--gut); border-right: var(--rule) solid var(--ink); font-weight: 900; font-stretch: 112%; font-size: 17px; }
.jn-brand img { width: 22px; height: 22px; }
.jn-links ul { display: flex; height: 100%; }
.jn-links a {
  display: flex; align-items: center; gap: 8px; height: 100%; padding: 0 clamp(14px, 1.6vw, 24px);
  border-right: 1px solid var(--ink); font-weight: 700; font-size: 13px; text-transform: uppercase; letter-spacing: 0.02em;
  transition: background 0.2s, color 0.2s;
}
.jn-links a span { font: 500 10px/1 var(--f-mono); color: var(--mute); }
.jn-links a:hover, .jn-links a[aria-current] { background: var(--ink); color: var(--paper); }
.jn-links a:hover span, .jn-links a[aria-current] span { color: var(--signal); }
.jn-cta {
  display: flex; align-items: center; gap: 12px; padding: 0 clamp(16px, 1.8vw, 26px);
  background: var(--signal); border-left: var(--rule) solid var(--ink);
  font: 700 12px/1 var(--f-mono); text-transform: uppercase; letter-spacing: 0.06em;
  transition: background 0.2s, color 0.2s;
}
.jn-cta:hover { background: var(--ink); color: var(--signal); }

/* ---------- crumbs & heads ---------- */
.jn-crumbs { padding: 18px 0 0; }
.jn-crumbs ol { display: flex; flex-wrap: wrap; gap: 6px 10px; font: 500 11px/1.4 var(--f-mono); text-transform: uppercase; letter-spacing: 0.04em; color: var(--mute); }
.jn-crumbs li + li::before { content: '/'; margin-right: 10px; color: var(--paper-3); }
.jn-crumbs a { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--paper-3); }
.jn-crumbs a:hover { color: var(--ink); text-decoration-color: var(--ink); }
.jn-crumbs [aria-current] { color: var(--ink); max-width: 60ch; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.jn-head, .jn-hero { padding: clamp(36px, 6vw, 88px) 0 clamp(28px, 4vw, 56px); border-bottom: var(--rule) solid var(--ink); display: grid; gap: clamp(18px, 2.4vw, 30px); }
.jn-head .sec-title, .jn-hero .sec-title { font-size: clamp(3rem, 9vw, 9.5rem); }
.jn-lede { max-width: 56ch; font-size: clamp(1.05rem, 1.4vw, 1.3rem); line-height: 1.55; color: var(--mute); }
.jn-cta-row { display: flex; flex-wrap: wrap; gap: 10px; }
.jn-sub {
  display: flex; align-items: center; gap: 14px; margin: 0 0 22px;
  font: 700 12px/1 var(--f-mono); text-transform: uppercase; letter-spacing: 0.06em;
}
.jn-sub::after { content: ''; flex: 1; height: 1px; background: var(--ink); }

/* ---------- article cards ---------- */
.jn-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr)); border-top: 1px solid var(--ink); border-left: 1px solid var(--ink); margin: clamp(28px, 4vw, 48px) 0 clamp(48px, 6vw, 96px); }
.jn-card { border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.jn-card a { display: grid; gap: 12px; align-content: start; height: 100%; padding: 18px 18px 22px; transition: background 0.25s; }
.jn-card-img { display: block; aspect-ratio: 1200 / 630; overflow: hidden; border: 1px solid var(--ink); background: var(--paper-2); }
.jn-card-img img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.05); transition: filter 0.5s, transform 0.8s var(--ease-out); }
.jn-card-meta { display: flex; justify-content: space-between; gap: 12px; font: 500 11px/1.3 var(--f-mono); text-transform: uppercase; letter-spacing: 0.04em; color: var(--mute); }
.jn-card-meta span:first-child { color: var(--signal-ink); font-weight: 700; }
.jn-card-title { font-weight: 850; font-stretch: 82%; font-size: clamp(1.45rem, 2vw, 1.9rem); line-height: 1.02; letter-spacing: -0.01em; }
.jn-card-desc { color: var(--mute); font-size: 15px; line-height: 1.5; }
.jn-card-more { display: inline-flex; align-items: center; gap: 8px; margin-top: 4px; font: 700 11px/1 var(--f-mono); text-transform: uppercase; letter-spacing: 0.05em; }
.jn-card a:hover, .jn-card a:focus-visible { background: var(--paper-hi, #f3f2ed); }
.jn-card a:hover .jn-card-img img, .jn-card a:focus-visible .jn-card-img img { filter: none; transform: scale(1.03); }
.jn-card a:hover .arw { transform: rotate(45deg); }
.jn-empty { padding: 48px 0 96px; color: var(--mute); }

/* ---------- article ---------- */
.jn-post-head { display: grid; gap: 20px; padding: clamp(32px, 5vw, 72px) 0 clamp(24px, 3vw, 40px); max-width: 1040px; }
.jn-post-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px; font: 500 11px/1.3 var(--f-mono); text-transform: uppercase; letter-spacing: 0.04em; color: var(--mute); }
.jn-chip { padding: 5px 8px; background: var(--ink); color: var(--paper); font-weight: 700; }
.jn-post-head h1 { font-weight: 850; font-stretch: 76%; font-size: clamp(2.4rem, 6vw, 5.6rem); line-height: 0.92; letter-spacing: -0.02em; text-transform: uppercase; }
.jn-byline { font-size: 14px; color: var(--mute); }
.jn-byline strong { color: var(--ink); }
.jn-post-head { border-bottom: var(--rule) solid var(--ink); margin-bottom: clamp(28px, 4vw, 56px); }

.jn-layout { display: grid; grid-template-columns: minmax(200px, 260px) minmax(0, 1fr); gap: clamp(24px, 4vw, 72px); align-items: start; padding-bottom: clamp(40px, 5vw, 80px); }
.jn-toc { position: sticky; top: calc(var(--nav) + 24px); }
.jn-toc ol { display: grid; gap: 2px; margin-top: 12px; counter-reset: toc; }
.jn-toc a { display: grid; grid-template-columns: 26px 1fr; gap: 6px; padding: 6px 0; font-size: 14px; line-height: 1.35; color: var(--mute); transition: color 0.2s; }
.jn-toc a::before { counter-increment: toc; content: counter(toc, decimal-leading-zero); font: 500 10px/1.9 var(--f-mono); color: var(--signal-ink); }
.jn-toc a:hover { color: var(--ink); }
.jn .jn-toc .foot-k, .jn .jn-summary .foot-k { color: var(--signal-ink); border-color: var(--ink); }
.jn-main { min-width: 0; max-width: var(--measure); }

.jn-summary { margin-bottom: 40px; padding: 20px 22px 22px; background: var(--ink); color: var(--paper); }
.jn .jn-summary .foot-k { color: var(--signal); border-color: rgba(233, 231, 225, 0.2); }
.jn-summary ul { display: grid; gap: 10px; margin-top: 14px; }
.jn-summary li { position: relative; padding-left: 22px; line-height: 1.5; }
.jn-summary li::before { content: ''; position: absolute; left: 0; top: 0.55em; width: 8px; height: 8px; background: var(--signal); }
.jn-summary a { color: var(--signal); text-decoration: underline; }

.jn-prose { font-size: clamp(1.02rem, 1.15vw, 1.12rem); line-height: 1.75; counter-reset: h2; }
.jn-prose > * + * { margin-top: 1.1em; }
.jn-prose h2 {
  margin-top: 2.2em; padding-top: 18px; border-top: var(--rule) solid var(--ink);
  font-weight: 850; font-stretch: 82%; font-size: clamp(1.6rem, 2.6vw, 2.3rem); line-height: 1.05; letter-spacing: -0.01em;
  scroll-margin-top: calc(var(--nav) + 20px);
}
.jn-prose h2::before { counter-increment: h2; content: counter(h2, decimal-leading-zero); display: block; margin-bottom: 10px; font: 700 11px/1 var(--f-mono); color: var(--signal-ink); }
.jn-prose h3 { margin-top: 1.8em; font-weight: 800; font-size: clamp(1.15rem, 1.5vw, 1.35rem); line-height: 1.2; scroll-margin-top: calc(var(--nav) + 20px); }
.jn-prose h4 { margin-top: 1.4em; font: 700 13px/1.3 var(--f-mono); text-transform: uppercase; letter-spacing: 0.04em; }
.jn-prose a { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; text-decoration-color: var(--signal); }
.jn-prose a:hover { background: var(--signal); text-decoration-color: var(--ink); }
.jn-prose strong { font-weight: 750; }
.jn-prose em { font-family: var(--f-serif); font-style: italic; font-size: 1.12em; }
.jn-prose ul, .jn-prose ol { display: grid; gap: 0.5em; padding-left: 0; }
.jn-prose ul li { position: relative; padding-left: 24px; }
.jn-prose ul li::before { content: ''; position: absolute; left: 2px; top: 0.72em; width: 8px; height: 2px; background: var(--ink); }
.jn-prose ol { counter-reset: li; }
.jn-prose ol li { position: relative; padding-left: 34px; counter-increment: li; }
.jn-prose ol li::before { content: counter(li, decimal-leading-zero); position: absolute; left: 0; top: 0.35em; font: 700 11px/1.4 var(--f-mono); color: var(--signal-ink); }
.jn-prose blockquote { margin-left: 0; padding: 4px 0 4px 22px; border-left: 4px solid var(--signal); font-family: var(--f-serif); font-size: 1.35em; line-height: 1.35; }
.jn-prose code { padding: 1px 6px; background: var(--paper-2); font: 500 0.86em var(--f-mono); }
.jn-prose .tbl { overflow-x: auto; border: 1px solid var(--ink); }
.jn-prose table { width: 100%; border-collapse: collapse; font-size: 0.92em; line-height: 1.45; }
.jn-prose th { padding: 10px 12px; background: var(--ink); color: var(--paper); font: 700 11px/1.3 var(--f-mono); text-transform: uppercase; letter-spacing: 0.04em; text-align: left; }
.jn-prose td { padding: 10px 12px; border-top: 1px solid var(--paper-3); vertical-align: top; }
.jn-prose tr:nth-child(even) td { background: rgba(14, 14, 13, 0.03); }
.cite { font: 700 0.62em/0 var(--f-mono); margin-left: 1px; }
.cite a { padding: 0 2px; text-decoration: none !important; color: var(--signal-ink); }
.cite a:hover { background: var(--ink) !important; color: var(--paper); }

/* ---------- FAQ ---------- */
.jn-faq { margin-top: 56px; border-top: var(--rule) solid var(--ink); }
.jn-faq > h2 { padding: 18px 0; font-weight: 850; font-stretch: 82%; font-size: clamp(1.6rem, 2.6vw, 2.3rem); line-height: 1.05; }
.jn-faq details { border-top: 1px solid var(--ink); }
.jn-faq details:last-child { border-bottom: 1px solid var(--ink); }
.jn-faq summary { display: grid; grid-template-columns: 40px 1fr 20px; gap: 10px; align-items: baseline; padding: 16px 0; cursor: pointer; list-style: none; font-weight: 750; font-size: 1.08rem; line-height: 1.35; }
.jn-faq summary::-webkit-details-marker { display: none; }
.jn-faq summary::after { content: '+'; font: 500 20px/1 var(--f-mono); text-align: right; transition: transform 0.3s var(--ease-out); }
.jn-faq details[open] summary::after { transform: rotate(45deg); color: var(--signal-ink); }
.jn-faq-i { font: 700 11px/1 var(--f-mono); color: var(--signal-ink); }
.jn-faq-a { padding: 0 0 20px 50px; color: var(--ink-3, #26261f); line-height: 1.7; }
.jn-faq-a a { text-decoration: underline; }

/* ---------- sources ---------- */
.jn-sources { margin-top: 56px; padding-top: 18px; border-top: var(--rule) solid var(--ink); }
.jn-sources h2 { font: 700 12px/1 var(--f-mono); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 16px; }
.jn-sources ol { display: grid; gap: 10px; counter-reset: src; }
.jn-sources li { position: relative; padding-left: 38px; font-size: 14px; line-height: 1.5; counter-increment: src; scroll-margin-top: calc(var(--nav) + 20px); }
.jn-sources li::before { content: '[' counter(src) ']'; position: absolute; left: 0; font: 700 12px/1.5 var(--f-mono); color: var(--signal-ink); }
.jn-sources li:target { background: rgba(255, 79, 0, 0.12); }
.jn-sources a { text-decoration: underline; text-underline-offset: 3px; word-break: break-word; }
.jn-note { margin-top: 18px; font-size: 13px; color: var(--mute); }

/* ---------- related, works, offers ---------- */
.jn-related, .jn-works { padding-top: clamp(32px, 4vw, 56px); }
.jn-related .jn-grid, .jn-works .jn-grid { margin-top: 0; }
.jn-offers { padding: clamp(36px, 5vw, 72px) 0 clamp(20px, 3vw, 36px); }
.jn-offers ol { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); border-top: 1px solid var(--ink); border-left: 1px solid var(--ink); }
.jn-offers li { display: grid; gap: 10px; align-content: start; padding: 22px 20px 26px; border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); transition: background 0.25s, color 0.25s; }
.jn-offers li:hover { background: var(--ink); color: var(--paper); }
.jn-offer-i { font: 700 11px/1 var(--f-mono); color: var(--signal-ink); }
.jn-offers li:hover .jn-offer-i { color: var(--signal); }
.jn-offers h3 { font-weight: 850; font-stretch: 82%; font-size: 1.6rem; line-height: 1.02; }
.jn-offers p { font-size: 15px; line-height: 1.55; opacity: 0.85; }
.jn-hero + .jn-offers { padding-top: clamp(32px, 4vw, 56px); }

/* ---------- CTA ---------- */
.jn-cta-block { display: grid; gap: 22px; justify-items: start; padding: clamp(56px, 8vw, 120px) var(--gut); background: var(--ink); color: var(--paper); }
.jn-kicker { font: 700 11px/1 var(--f-mono); text-transform: uppercase; letter-spacing: 0.06em; color: var(--signal); }
.jn-cta-block h2 { max-width: 16ch; font-weight: 850; font-stretch: 76%; font-size: clamp(2.6rem, 7vw, 6.4rem); line-height: 0.9; text-transform: uppercase; }
.jn-cta-block h2 em { display: block; font-family: var(--f-serif); font-style: italic; font-weight: 400; font-stretch: 100%; text-transform: none; color: var(--signal); }
.jn-cta-block > p:not(.jn-kicker) { max-width: 56ch; font-size: 1.1rem; line-height: 1.55; color: #c9c5bc; }

/* ---------- 404 ---------- */
.jn-404 { display: grid; gap: 24px; padding: clamp(64px, 10vw, 160px) var(--gut); }

/* ---------- footer ---------- */
.jn-foot { padding: clamp(48px, 6vw, 88px) var(--gut) 0; background: var(--ink); color: var(--paper); }
.jn-foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; padding-bottom: 48px; }
.jn-foot-brand { display: grid; gap: 18px; align-content: start; }
.jn-foot-brand p { max-width: 42ch; color: #a29e95; line-height: 1.55; }
.jn-foot-col { display: grid; gap: 14px; align-content: start; }
.jn-foot-col ul { display: grid; gap: 6px; }
.jn-foot-col a, .jn-foot-col span { font-weight: 600; font-size: 15px; }
.jn-foot-col a:hover { color: var(--signal); }
.jn-foot-bar { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding: 18px 0 22px; border-top: 1px solid rgba(233, 231, 225, 0.16); font: 500 11px/1.4 var(--f-mono); text-transform: uppercase; letter-spacing: 0.04em; color: #a29e95; }
.jn-foot-bar a:hover { color: var(--signal); }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .jn-layout { grid-template-columns: minmax(0, 1fr); }
  .jn-toc { position: static; padding: 16px 18px; border: 1px solid var(--ink); }
  .jn-main { max-width: none; }
}
@media (max-width: 860px) {
  .jn-nav { grid-template-columns: 1fr auto; }
  .jn-brand { border-right: 0; min-height: var(--nav); }
  .jn-links { grid-column: 1 / -1; grid-row: 2; border-top: 1px solid var(--ink); overflow-x: auto; scrollbar-width: none; }
  .jn-links::-webkit-scrollbar { display: none; }
  .jn-links a { min-height: 44px; white-space: nowrap; }
  .jn-foot-grid { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .jn-cta span { display: none; }
  .jn-faq-a { padding-left: 0; }
  .jn-faq summary { grid-template-columns: 30px 1fr 18px; }
  .jn-prose { font-size: 1.02rem; }
}
@media (prefers-reduced-motion: reduce) {
  .jn * { transition: none !important; }
}
@media print {
  .jn-nav, .jn-toc, .jn-cta-block, .jn-related, .jn-foot { display: none; }
}