/* MethodKit for Journalism & AI — Knowledge Library
   Design: "Field Notes" (chosen direction C)
   Space Grotesk + IBM Plex Mono. Paper background, ink rules, card-catalog
   records, dashed sub-rules, offset-on-hover. Category colors as functional
   swatches. */

:root {
  --bg: #f4f3ee;
  --card: #fdfdfb;
  --ink: #16181a;
  --muted: #70757a;
  --line: #c9c7bd;

  /* Category colors (from the card art) */
  --c-ai-conversations: #00c877;
  --c-organisation: #19b0f0;
  --c-journalism: #1179d5;
  --c-ai-solutions: #1b42af;
  --c-perspective: #353535;

  /* Per-category vars, overridden inline per block.
     --cat bright fill (swatches), --cat-ink accessible text on paper. */
  --cat: #1179d5;
  --cat-ink: #0f63ad;
  --tint: #e7f1fb;

  --grot: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', monospace;

  --maxw: 1140px;
  --reading: 720px;
  --ease: cubic-bezier(0.2, 0, 0, 1);
}

* { box-sizing: border-box; }

html {
  font-family: var(--grot);
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

body { margin: 0; font-size: 16px; line-height: 1.55; }

h1, h2, h3, h4 { font-weight: 600; letter-spacing: -0.025em; line-height: 1.06; color: var(--ink); margin: 0; }
h1 { font-size: clamp(2.3rem, 5.6vw, 4.1rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.15rem; letter-spacing: -0.01em; }
p { margin: 0 0 1em; }
a { color: var(--cat-ink); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 4px; }
img { max-width: 100%; display: block; }
.mono { font-family: var(--mono); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 26px; }
.measure { max-width: var(--reading); }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* file-path style metadata rows */
.file { font-family: var(--mono); font-size: 0.76rem; color: var(--muted); display: flex; gap: 28px; flex-wrap: wrap; }
.file span::before { content: "// "; color: var(--ink); }

/* ---------- Header ---------- */
.site-header { position: sticky; top: 0; background: var(--bg); border-bottom: 1px solid var(--ink); z-index: 50; }
.site-header .bar { display: flex; align-items: center; justify-content: space-between; height: 56px; gap: 16px; }
.brand-lockup a { font-family: var(--mono); font-weight: 600; font-size: 0.88rem; letter-spacing: 0.02em; color: var(--ink); display: inline-flex; align-items: center; }
.brand-lockup a:hover { text-decoration: none; }
.brand-lockup b { background: var(--ink); color: var(--bg); padding: 3px 7px; margin-right: 9px; font-weight: 600; }
.nav { display: flex; align-items: center; gap: 22px; }
.nav a { font-family: var(--mono); font-size: 0.8rem; color: var(--ink); }
.nav a.cta { border: 1px solid var(--ink); padding: 7px 14px; background: var(--card); }
.nav a.cta:hover { background: var(--ink); color: var(--bg); text-decoration: none; }
@media (max-width: 760px) { .nav a.lnk { display: none; } }
@media (max-width: 480px) { .brand-lockup .path { display: none; } }

/* ---------- Buttons ---------- */
.btn { font-family: var(--mono); font-size: 0.85rem; font-weight: 500; color: var(--ink);
  border: 1px solid var(--ink); padding: 13px 22px; display: inline-block; background: var(--card);
  transition: background 130ms var(--ease), color 130ms var(--ease); }
.btn:hover { background: var(--ink); color: var(--bg); text-decoration: none; }
.btn.dark { background: var(--ink); color: var(--bg); }
.btn.dark:hover { background: #000; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* ---------- Home hero ---------- */
.hero { padding: 72px 0 56px; border-bottom: 1px solid var(--ink); }
.hero .file { margin-bottom: 30px; }
.hero .banner { width: 100%; max-width: 720px; height: auto; display: block; margin: -14px 0 10px -18px; }
.hero h1 { margin: 0 0 24px; max-width: 21ch; }
.hero h1 mark { background: transparent; color: var(--c-journalism); position: relative; }
.hero h1 mark::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0.08em; height: 0.22em; background: rgba(17,121,213,0.16); z-index: -1; }
.hero .lede { font-size: 1.05rem; color: var(--muted); max-width: 52ch; margin: 0 0 32px; }
.hero .meta { margin-top: 26px; font-family: var(--mono); font-size: 0.76rem; color: var(--muted); }

/* ---------- Category ledger ---------- */
.ledger { border-bottom: 1px solid var(--ink); }
.ledger .row { display: grid; grid-template-columns: repeat(5, 1fr); }
.ledger .cell { padding: 18px 16px 22px; border-right: 1px dashed var(--line); color: var(--ink); display: block; }
.ledger .cell:last-child { border-right: 0; }
.ledger .cell:hover { background: var(--card); text-decoration: none; }
.ledger .id { font-family: var(--mono); font-size: 0.72rem; color: var(--muted); }
.ledger h3 { margin: 6px 0 2px; font-size: 1.02rem; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.ledger h3 i { width: 10px; height: 10px; background: var(--cat); display: inline-block; flex: none; }
.ledger .n { font-family: var(--mono); font-size: 0.74rem; color: var(--muted); }
@media (max-width: 880px) { .ledger .row { grid-template-columns: 1fr 1fr; } .ledger .cell { border-bottom: 1px dashed var(--line); } }

/* ---------- Sections ---------- */
.section { padding: 60px 0; }
.section.ruled { border-bottom: 1px solid var(--ink); }
.section-head { max-width: 62ch; margin-bottom: 32px; }
.section-head .file { margin-bottom: 14px; }
.section-head h2 { margin-bottom: 12px; }
.section-head p { color: var(--muted); font-size: 1.02rem; }
.bodylede { font-size: 1.05rem; color: var(--ink); }
.byline { display: flex; gap: 44px; flex-wrap: wrap; }
.byline .nm { font-weight: 600; color: var(--ink); }
.byline .ro { font-family: var(--mono); font-size: 0.78rem; color: var(--muted); }

/* trio */
.trio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.trio .item { background: var(--card); border: 1px solid var(--ink); padding: 0; }
.trio .item .head { display: flex; justify-content: space-between; align-items: center; font-family: var(--mono); font-size: 0.7rem; padding: 8px 14px; border-bottom: 1px solid var(--ink); color: var(--muted); }
.trio .item .head i { width: 9px; height: 9px; background: var(--cat); display: inline-block; }
.trio .item .body { padding: 18px 18px 22px; }
.trio .item h3 { margin-bottom: 8px; }
.trio .item p { color: var(--muted); font-size: 0.94rem; margin: 0; }
@media (max-width: 820px) { .trio { grid-template-columns: 1fr; } }

/* methods */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.steps .step { background: var(--card); border: 1px solid var(--line); padding: 0; }
.steps .step .img { background: #fff; border-bottom: 1px dashed var(--line); padding: 6px 14px; }
.steps .step .img img { width: 100%; height: auto; display: block; }
.steps .step .txt { padding: 14px 18px 20px; }
.steps .step .num { font-family: var(--mono); font-size: 0.72rem; color: var(--muted); }
.steps .step h3 { margin: 8px 0 6px; font-size: 1.05rem; }
.steps .step p { margin: 0; color: var(--muted); font-size: 0.92rem; }
@media (max-width: 820px) { .steps { grid-template-columns: 1fr; } }

/* voices teaser (home) + voice entries (card pages) */
.voices { display: grid; gap: 14px; }
.voice { background: var(--card); border: 1px solid var(--ink); padding: 18px 20px 16px; position: relative; }
.voice::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--cat); }
.voice .vtext { font-size: 1.02rem; font-weight: 500; margin: 0 0 10px; letter-spacing: -0.005em; }
.voice .vwho { font-family: var(--mono); font-size: 0.74rem; color: var(--muted); }
.voice .vwho b { color: var(--ink); font-weight: 600; }
.voices.cols { grid-template-columns: repeat(3, 1fr); align-items: start; }
@media (max-width: 880px) { .voices.cols { grid-template-columns: 1fr; } }

/* people */
.people { display: grid; grid-template-columns: 1fr 1.4fr; gap: 44px; }
.people h4 { font-family: var(--mono); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin: 0 0 12px; }
.people .grp p { margin: 0 0 10px; }
.people .nm { font-weight: 600; }
.people .ro { font-family: var(--mono); font-size: 0.76rem; color: var(--muted); }
.people .experts { columns: 2; column-gap: 30px; font-size: 0.92rem; }
.people .experts span { display: block; break-inside: avoid; margin-bottom: 7px; }
.people .experts b { font-weight: 600; }
.people .experts i { font-style: normal; font-family: var(--mono); font-size: 0.74rem; color: var(--muted); display: block; }
.people .mt { margin-top: 26px; }
@media (max-width: 760px) { .people { grid-template-columns: 1fr; } .people .experts { columns: 1; } }

/* ---------- Library page ---------- */
.lib-hero { padding: 56px 0 30px; }
.lib-hero .file { margin-bottom: 18px; }
.lib-hero h1 { margin-bottom: 14px; }
.lib-hero p { color: var(--muted); font-size: 1.05rem; max-width: 56ch; }

.lib-controls { position: sticky; top: 56px; z-index: 30; background: var(--bg); border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); padding: 12px 0; }
.lib-controls .row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.search { flex: 1 1 240px; position: relative; min-width: 200px; }
.search input { width: 100%; font-family: var(--mono); font-size: 0.85rem; padding: 11px 12px 11px 38px; border: 1px solid var(--ink); background: var(--card); color: var(--ink); }
.search input:focus { outline: 2px solid var(--c-journalism); outline-offset: 1px; }
.search svg { position: absolute; left: 13px; top: 50%; transform: translateY(-50%); color: var(--muted); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { font-family: var(--mono); font-size: 0.76rem; font-weight: 500; cursor: pointer; padding: 9px 13px; border: 1px solid var(--ink); background: var(--card); color: var(--ink); display: inline-flex; align-items: center; gap: 8px; transition: background 120ms var(--ease), color 120ms var(--ease); }
.chip .sw { width: 9px; height: 9px; background: var(--cat, var(--ink)); }
.chip[aria-pressed="true"] { background: var(--ink); color: var(--bg); }

.cat-block { padding: 48px 0 10px; scroll-margin-top: 130px; }
.cat-block .cat-title { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; margin-bottom: 6px; }
.cat-block .cat-title .id { font-family: var(--mono); font-size: 0.76rem; color: var(--muted); }
.cat-block .cat-title .sq { width: 14px; height: 14px; background: var(--cat); align-self: center; }
.cat-block .cat-title h2 { font-size: clamp(1.4rem, 2.8vw, 1.9rem); }
.cat-block .cat-title .count { font-family: var(--mono); font-size: 0.78rem; color: var(--muted); }
.cat-block .cat-desc { color: var(--muted); max-width: 64ch; margin: 6px 0 8px; }
.subsec { margin-top: 26px; }
.subsec .sub-label { font-family: var(--mono); font-size: 0.74rem; color: var(--cat-ink); margin-bottom: 14px; }
.subsec .sub-label::before { content: "// "; color: var(--ink); }

/* record tiles */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(196px, 1fr)); gap: 18px; }
.tile { background: var(--card); border: 1px solid var(--ink); color: var(--ink); display: block; transition: transform 120ms var(--ease), box-shadow 120ms var(--ease); }
.tile:hover { transform: translate(-2px, -2px); box-shadow: 4px 4px 0 var(--ink); text-decoration: none; }
.tile .head { display: flex; justify-content: space-between; align-items: center; font-family: var(--mono); font-size: 0.68rem; padding: 7px 11px; border-bottom: 1px solid var(--ink); color: var(--ink); }
.tile .head i { width: 9px; height: 9px; background: var(--cat); display: inline-block; }
.tile .imgwrap { padding: 14px; background: repeating-linear-gradient(0deg, transparent, transparent 11px, rgba(22,24,26,0.04) 11px, rgba(22,24,26,0.04) 12px); }
.tile .imgwrap img { width: 100%; height: auto; }
.tile .cap { padding: 11px 13px 14px; border-top: 1px solid var(--ink); }
.tile .cap .tt { font-weight: 600; font-size: 1.02rem; letter-spacing: -0.01em; }
.tile .cap .dd { font-family: var(--mono); font-size: 0.7rem; color: var(--muted); line-height: 1.5; margin-top: 3px; }
.no-results { display: none; padding: 40px 0; color: var(--muted); font-family: var(--mono); font-size: 0.9rem; }

/* ---------- Card detail (dossier) ---------- */
.crumbs { padding: 22px 0 0; font-family: var(--mono); font-size: 0.76rem; color: var(--muted); }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--ink); }
.crumbs .sep { margin: 0 7px; }

.dossier { margin: 22px 0 0; background: var(--card); border: 1px solid var(--ink); }
.dossier .top { display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; font-family: var(--mono); font-size: 0.74rem; padding: 10px 18px; border-bottom: 1px solid var(--ink); background: var(--bg); }
.dossier .top .sw { display: inline-block; width: 9px; height: 9px; background: var(--cat); margin-right: 8px; }
.dossier .body { display: grid; grid-template-columns: 300px 1fr; }
.dossier .left { padding: 30px; border-right: 1px dashed var(--line); }
.dossier .left img { width: 100%; height: auto; }
.dossier .tags { margin-top: 16px; display: flex; flex-direction: column; gap: 6px; font-family: var(--mono); font-size: 0.72rem; color: var(--muted); }
.dossier .right { padding: 34px 40px 38px; }
.dossier h1 { font-size: clamp(1.9rem, 4vw, 2.6rem); margin: 0 0 6px; }
.dossier .descriptor { font-family: var(--mono); font-size: 0.9rem; color: var(--cat-ink); margin: 0 0 22px; }
.dossier .descriptor::before { content: "// "; color: var(--ink); }
.dossier .lead { font-size: 1.04rem; max-width: 58ch; margin: 0; }
@media (max-width: 860px) { .dossier .body { grid-template-columns: 1fr; } .dossier .left { border-right: 0; border-bottom: 1px dashed var(--line); max-width: 320px; } }

.card-body { padding: 10px 0 30px; }
.block { padding: 34px 0 26px; border-bottom: 1px dashed var(--line); }
.block > h2 { font-size: 1.35rem; margin-bottom: 4px; }
.block > .hint { font-family: var(--mono); font-size: 0.76rem; color: var(--muted); margin-bottom: 20px; }

.qs { list-style: none; margin: 0; padding: 0; max-width: 780px; counter-reset: q; }
.qs li { counter-increment: q; display: grid; grid-template-columns: 70px 1fr; padding: 14px 0; border-top: 1px dashed var(--line); font-size: 1.06rem; font-weight: 500; }
.qs li:first-child { border-top: 0; }
.qs li::before { content: "Q." counter(q, decimal-leading-zero); font-family: var(--mono); font-weight: 600; font-size: 0.74rem; color: var(--cat-ink); padding-top: 6px; }

.clist { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; max-width: 780px; }
.clist li { display: grid; grid-template-columns: 26px 1fr; gap: 12px; align-items: start; font-size: 0.98rem; }
.clist li .tick { width: 16px; height: 16px; border: 1px solid var(--ink); background: var(--card); display: grid; place-items: center; margin-top: 4px; font-family: var(--mono); }
.clist li .tick svg { color: var(--cat-ink); }

.howto { background: var(--bg); border: 1px solid var(--ink); padding: 22px 24px; max-width: 780px; }
.howto .label { font-family: var(--mono); font-size: 0.72rem; color: var(--muted); margin-bottom: 8px; }
.howto .label::before { content: "// "; color: var(--ink); }
.howto p { color: var(--ink); margin: 0; font-size: 0.97rem; }

/* siblings + prevnext */
.siblings { padding: 38px 0 50px; }
.siblings h2 { font-size: 1.2rem; margin-bottom: 4px; }
.siblings .hint { font-family: var(--mono); font-size: 0.74rem; color: var(--muted); margin-bottom: 20px; }
.sib-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 14px; }
.prevnext { display: flex; justify-content: space-between; gap: 12px; padding: 30px 0 0; flex-wrap: wrap; }
.prevnext a { display: flex; align-items: center; gap: 12px; padding: 12px 16px; border: 1px solid var(--ink); background: var(--card); color: var(--ink); max-width: 48%; transition: background 120ms var(--ease); }
.prevnext a:hover { text-decoration: none; box-shadow: 3px 3px 0 var(--ink); }
.prevnext a .dir { font-family: var(--mono); font-size: 0.68rem; color: var(--muted); display: block; }
.prevnext a .ttl { font-weight: 600; font-size: 0.95rem; }
.prevnext a.next { margin-left: auto; text-align: right; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--ink); background: var(--bg); margin-top: 40px; }
.site-footer .cols { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; padding: 46px 0 36px; }
.site-footer h4 { font-family: var(--mono); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin: 0 0 14px; }
.site-footer .about p { color: var(--muted); max-width: 44ch; font-size: 0.94rem; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.site-footer ul a { font-family: var(--mono); font-size: 0.8rem; color: var(--ink); }
.site-footer .logos { display: flex; align-items: center; gap: 22px; margin-top: 16px; flex-wrap: wrap; }
.site-footer .logos img { height: 26px; width: auto; opacity: 0.92; }
.site-footer .legal { border-top: 1px dashed var(--line); padding: 16px 0 44px; font-family: var(--mono); font-size: 0.72rem; color: var(--muted); display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
@media (max-width: 820px) { .site-footer .cols { grid-template-columns: 1fr; gap: 26px; } }

/* utility */
.center { text-align: center; }
.mt-s { margin-top: 14px; } .mt-m { margin-top: 26px; } .mt-l { margin-top: 44px; }