/* ON1 / biniz — library-archive aesthetic
 *
 * Card-catalog drawer feel: warm-paper / parchment ground, brown ink for
 * text, sepia accents for rules and stamps. Faint ruled lines like a card
 * filing cabinet. IBM Plex Mono carries the "typewriter-on-card" weight;
 * Familjen Grotesk handles the prose passages; Chakra Petch sets
 * the spine-titles. WCAG AA contrast checked at 4.5:1 minimum on body.
 *
 * Palette is intentionally distinct from the engineering-blueprint flavor
 * the page used to wear — this is a public, prospect-facing catalog now.
 */

:root {
  --paper:       #f3ead5;
  --paper-deep:  #e9dfc1;
  --paper-tint:  #faf3e3;
  --rule:        #b59a6a;
  --rule-soft:   #d6c7a3;
  --ink:         #2a1b0d;
  --ink-soft:    #4d3722;
  --ink-mute:    #705844;
  --sepia:       #7a4a1e;
  --sepia-soft:  #a06a36;
  --stamp-red:   #8c1d18;
  --executable:  #2f6a4a;
  --exec-bg:     #d8e6d1;
  --serif:       'Familjen Grotesk', Georgia, serif;
  --mono:        'IBM Plex Mono', ui-monospace, 'Courier New', monospace;
  --display:     'Chakra Petch', monospace;
}

* { box-sizing: border-box; }

body.archive {
  margin: 0;
  background:
    /* faint horizontal rule lines, like a card filing cabinet drawer */
    repeating-linear-gradient(
      to bottom,
      transparent 0 35px,
      rgba(122, 74, 30, 0.04) 35px 36px
    ),
    radial-gradient(ellipse at 30% 0%, var(--paper-tint), var(--paper) 65%),
    var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 15.5px;
  line-height: 1.62;
  min-height: 100vh;
}

/* faint side decoration — like the bound edge of a folder */
.page-decoration {
  position: fixed;
  inset: 0 auto 0 0;
  width: 12px;
  background:
    linear-gradient(to right, rgba(122,74,30,0.18), transparent);
  pointer-events: none;
  z-index: 0;
}
@media (max-width: 720px) { .page-decoration { display: none; } }

/* ---- HEADER ----------------------------------------------------------- */

.archive-hdr {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 20px 56px;
  border-bottom: 2px solid var(--ink);
  background: var(--paper-tint);
  font-family: var(--mono);
  font-size: 13px;
}
.brand {
  font-family: var(--display);
  font-size: 19px;
  letter-spacing: 0.08em;
  color: var(--ink);
}
.page-name { color: var(--ink-soft); letter-spacing: 0.04em; }
.sep { color: var(--ink-mute); margin: 0 8px; }
.hdr-r a {
  color: var(--ink-soft);
  text-decoration: none;
  letter-spacing: 0.04em;
  border-bottom: 1px dotted transparent;
}
.hdr-r a:hover { color: var(--sepia); border-bottom-color: var(--sepia-soft); }

/* ---- MAIN ------------------------------------------------------------- */

.archive-main {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  margin: 0 auto;
  padding: 56px 56px 80px;
}
@media (max-width: 720px) { .archive-main { padding: 32px 20px 48px; } }

section { margin-bottom: 56px; }

h1, h2, h3 {
  color: var(--ink);
  font-family: var(--display);
  letter-spacing: 0.04em;
  margin: 0 0 14px 0;
}

h2 {
  font-size: 24px;
  border-bottom: 1px solid var(--rule-soft);
  padding-bottom: 6px;
  margin-bottom: 22px;
}
h2 .sub {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-mute);
  letter-spacing: 0.03em;
  text-transform: none;
}

.hint {
  color: var(--ink-soft);
  font-style: italic;
  margin-top: -6px;
  margin-bottom: 22px;
}

/* ---- TITLE CARD ------------------------------------------------------- */

.title-card {
  position: relative;
  background: var(--paper-tint);
  border: 2px solid var(--ink);
  padding: 56px 48px 48px;
  margin-bottom: 64px;
  box-shadow:
    0 1px 0 var(--paper-tint),
    0 0 0 6px var(--paper-deep),
    0 0 0 7px var(--ink);
}

.title-stamp {
  position: absolute;
  top: 18px;
  right: 28px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--stamp-red);
  border: 1.5px solid var(--stamp-red);
  padding: 6px 12px;
  letter-spacing: 0.18em;
  transform: rotate(-3deg);
  text-align: center;
  line-height: 1.35;
}
.title-stamp .stamp-line { display: block; }

.title-card h1 {
  font-size: 78px;
  letter-spacing: 0.02em;
  margin: 0 0 12px 0;
}
.title-card .subtitle {
  font-family: var(--mono);
  font-size: 16px;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
  margin: 0 0 24px 0;
}
.title-card .lede {
  font-family: var(--mono);
  font-size: 13.5px;
  color: var(--sepia);
  margin: 0 0 28px 0;
  letter-spacing: 0.02em;
}
.title-card .lede span { font-weight: 600; color: var(--ink); }
.title-card .ribbon {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--ink-mute);
  border-top: 1px solid var(--rule-soft);
  padding-top: 16px;
  margin: 0;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.title-card code {
  font-family: var(--mono);
  background: var(--paper-deep);
  padding: 1px 6px;
  border-radius: 2px;
  font-size: 11px;
  text-transform: none;
  letter-spacing: 0;
}

/* ---- WHAT-IS / VISION (prose) ---------------------------------------- */

.what-is, .vision {
  background: var(--paper-tint);
  border: 1px solid var(--rule);
  padding: 32px 36px;
}
.what-is p, .vision p {
  margin: 0 0 14px 0;
  max-width: 65ch;
}
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
}
@media (max-width: 720px) { .two-col { grid-template-columns: 1fr; gap: 8px; } }

a {
  color: var(--sepia);
  text-decoration: none;
  border-bottom: 1px solid var(--sepia-soft);
}
a:hover {
  color: var(--stamp-red);
  border-bottom-color: var(--stamp-red);
}

code {
  font-family: var(--mono);
  font-size: 13px;
  background: var(--paper-deep);
  padding: 1px 6px;
  border-radius: 2px;
  color: var(--ink);
}

/* ---- SEARCH BAR ------------------------------------------------------- */

.search-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  background: var(--paper-tint);
  border: 1px solid var(--rule);
  padding: 16px 20px;
  font-family: var(--mono);
  font-size: 13px;
}
.search-bar .lbl {
  color: var(--ink-soft);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 11px;
}
.search-bar input,
.search-bar select {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 0;
  padding: 6px 10px;
  outline: none;
  min-width: 0;
}
.search-bar input { flex: 1; min-width: 200px; }
.search-bar select { min-width: 180px; }
.search-bar input:focus,
.search-bar select:focus {
  border-color: var(--sepia);
  background: var(--paper-tint);
}
.result-count {
  margin-left: auto;
  color: var(--sepia);
  font-weight: 500;
  font-size: 12.5px;
}

/* ---- FOUNDATIONS ------------------------------------------------------ */

.foundations {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
  counter-reset: f-counter;
}
.foundations li {
  counter-increment: f-counter;
  background: var(--paper-tint);
  border: 1px solid var(--rule-soft);
  border-left: 4px solid var(--sepia);
  padding: 12px 14px 12px 18px;
  position: relative;
  font-family: var(--mono);
  font-size: 12.5px;
}
.foundations li::before {
  content: counter(f-counter, decimal-leading-zero);
  position: absolute;
  top: 6px;
  right: 10px;
  font-size: 10px;
  color: var(--ink-mute);
  letter-spacing: 0.1em;
}
.foundations .f-id {
  display: block;
  color: var(--ink);
  font-weight: 600;
  margin-bottom: 4px;
}
.foundations .f-title {
  display: block;
  font-family: var(--serif);
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.4;
  margin-bottom: 6px;
}
.foundations .f-refs {
  display: inline-block;
  color: var(--sepia);
  font-size: 11px;
  letter-spacing: 0.06em;
}
.foundations .f-star {
  color: var(--executable);
  margin-left: 6px;
  font-weight: bold;
}

/* ---- CATALOG GRID ----------------------------------------------------- */

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 18px;
}
.catalog-grid .loading {
  grid-column: 1 / -1;
  text-align: center;
  font-family: var(--mono);
  color: var(--ink-mute);
  padding: 60px 0;
  font-size: 13px;
  letter-spacing: 0.04em;
}
.catalog-grid .empty {
  grid-column: 1 / -1;
  text-align: center;
  font-family: var(--mono);
  color: var(--ink-soft);
  padding: 40px 0;
  font-size: 13px;
  letter-spacing: 0.04em;
}

.card {
  background: var(--paper-tint);
  border: 1px solid var(--rule);
  padding: 18px 18px 14px;
  position: relative;
  font-size: 13.5px;
  line-height: 1.5;
  /* the corner "tab" tear like a card-catalog card */
  background-image:
    linear-gradient(135deg, transparent 0 12px, var(--paper-deep) 12px 13px, transparent 13px);
}
.card.exec  { border-left: 4px solid var(--executable); }
.card.doc   { border-left: 4px solid var(--ink-mute); }

.card .c-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 6px;
}
.card .c-id {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink);
  font-weight: 600;
  word-break: break-all;
  flex: 1;
}
.card .c-status {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}
.card.exec .c-status { color: var(--executable); }
.card.doc .c-status  { color: var(--ink-mute); }

.card .c-title {
  font-family: var(--serif);
  font-size: 14px;
  color: var(--ink-soft);
  margin: 6px 0 10px;
  line-height: 1.42;
}
.card .c-meta {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  border-top: 1px dotted var(--rule);
  padding-top: 8px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-mute);
  letter-spacing: 0.04em;
}
.card .c-cat {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--sepia);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.card .c-refs {
  font-family: var(--mono);
  color: var(--ink-soft);
}
.card .c-idx {
  color: var(--ink-mute);
}

/* ---- COMPOSITIONS ----------------------------------------------------- */

.compositions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 22px;
}

.comp {
  background: var(--paper-tint);
  border: 1px solid var(--rule);
  padding: 22px 24px;
  position: relative;
}
.comp .c-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--rule-soft);
  padding-bottom: 8px;
}
.comp h3 {
  font-family: var(--mono);
  font-size: 16px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0;
  color: var(--ink);
}
.comp .badge {
  font-family: var(--mono);
  font-size: 11px;
  border: 1px solid var(--rule);
  padding: 2px 8px;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}
.comp .badge.has-demo {
  color: var(--executable);
  border-color: var(--executable);
  background: var(--exec-bg);
}
.comp .c-desc {
  font-size: 13.5px;
  color: var(--ink-soft);
  margin: 0 0 14px 0;
  line-height: 1.55;
}
.comp .c-toggle {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--sepia);
  cursor: pointer;
  margin-bottom: 8px;
  letter-spacing: 0.04em;
  text-decoration: underline dotted;
}
.comp .c-toggle:hover { color: var(--stamp-red); }
.comp .c-components {
  display: none;
  margin: 12px 0 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px dotted var(--rule);
  padding-top: 12px;
}
.comp .c-components.open { display: block; }
.comp .c-components li {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11.5px;
  padding: 4px 0;
}
.comp .c-components .c-port {
  color: var(--sepia);
}
.comp .c-components .c-cid {
  color: var(--ink-soft);
  word-break: break-all;
}

/* ---- HOW-TO ----------------------------------------------------------- */

.how-to-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
@media (max-width: 720px) { .how-to-row { grid-template-columns: 1fr; } }
.how-to-card {
  background: var(--paper-tint);
  border: 1px solid var(--rule);
  padding: 24px 26px;
}
.how-to-card h3 {
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 10px 0;
}
.how-to-card p {
  margin: 0 0 12px 0;
}
.how-to-list {
  margin: 12px 0 0 0;
  padding-left: 18px;
  font-size: 13.5px;
  color: var(--ink-soft);
}
.how-to-list li { margin-bottom: 6px; }

/* ---- FOOTER ----------------------------------------------------------- */

.archive-ftr {
  position: relative;
  z-index: 1;
  border-top: 2px solid var(--ink);
  background: var(--paper-tint);
  padding: 18px 56px;
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
}
.archive-ftr a { color: var(--sepia); }
.archive-ftr a:hover { color: var(--stamp-red); }
@media (max-width: 720px) {
  .archive-ftr { padding: 18px 20px; flex-direction: column; gap: 6px; }
}