/* ratchet room — house palette: ink · ivory · refutation red · hairline grid */
:root {
  --ink: #0a0d13;
  --ivory: #e9e6dc;
  --red: #ff4b3a;
  --cyan: #62e6db;
  --hair: #1d2534;
  --dim: #8b8878;
  --green: #4ade80;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: "Space Grotesk", system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { background: var(--ink); }
body {
  background: var(--ink);
  color: var(--ivory);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 880px; margin: 0 auto; padding: 0 20px; }

nav {
  -webkit-backdrop-filter: blur(22px) saturate(140%);
  backdrop-filter: blur(22px) saturate(140%);
  background: rgba(9, 10, 23, .68);
  border-bottom: 1px solid var(--hair);
  height: 62px;
  position: sticky;
  top: 0;
  z-index: 20;
}
.nav-inner {
  align-items: center; display: flex; gap: 30px; height: 100%; margin: 0 auto; max-width: 1160px; padding: 0 28px;
}
.wordmark { align-items: center; color: var(--ivory); display: inline-flex; font-size: 13px; font-weight: 500; letter-spacing: .02em; line-height: 1.6; text-decoration: none; white-space: nowrap; }
.mark { background: rgba(244, 243, 255, .94); border-radius: 8px; box-shadow: 0 0 24px rgba(197, 145, 255, .18); display: inline-block; flex: 0 0 auto; height: 29px; margin-right: 10px; position: relative; width: 29px; }
.mark::after { color: #17142a; content: "pl"; font-size: 11px; font-weight: 600; inset: 6px 0 0; letter-spacing: -.04em; position: absolute; text-align: center; }
.wordmark .dot { color: var(--cyan); }
.nav-links { align-items: center; display: flex; gap: clamp(16px, 2.5vw, 30px); margin-left: auto; }
.nav-links a, .content-menu summary, .library-menu summary { color: var(--dim); text-decoration: none; }
.nav-links a:hover, .content-menu summary:hover, .library-menu summary:hover { color: var(--ivory); }
.nav-links a, .library-menu summary { font-size: 12px; line-height: 1.6; position: relative; }
.nav-links a.lit, .library-menu.has-current > summary { color: var(--ivory); text-shadow: 0 0 18px rgba(98, 230, 219, .35); }
.nav-links > a.lit::before, .library-menu.has-current > summary::before { background: var(--cyan); border-radius: 50%; box-shadow: 0 0 10px var(--cyan); content: ""; height: 5px; left: -12px; position: absolute; top: 50%; transform: translateY(-50%); width: 5px; }
.library-menu { position: relative; }
.library-menu summary { cursor: pointer; list-style: none; white-space: nowrap; }
.library-menu summary::-webkit-details-marker { display: none; }
.library-menu summary::after { color: var(--cyan); content: "⌄"; display: inline-block; margin-left: 6px; transition: transform .16s ease; }
.library-menu[open] summary::after { transform: rotate(180deg); }
.library-menu-panel { background: rgba(12, 13, 29, .98); border: 1px solid #344057; border-radius: 12px; box-shadow: 0 18px 45px rgba(0, 0, 0, .36); display: grid; gap: 2px; min-width: 174px; padding: 7px; position: absolute; right: 0; top: calc(100% + 19px); z-index: 30; }
.library-menu:not([open]) .library-menu-panel { display: none; }
.library-menu-panel a { border-radius: 7px; padding: 8px 10px; white-space: nowrap; }
.library-menu-panel a:hover { background: rgba(255, 255, 255, .06); }
.content-menu { position: static; }
.content-menu summary { cursor: pointer; list-style: none; }
.content-menu summary::-webkit-details-marker { display: none; }
.content-menu summary::after { color: var(--red); content: " +"; }
.content-menu[open] summary { color: var(--ivory); }
.content-menu[open] summary::after { content: " −"; }
.content-panel {
  background: #0d1119; border: 1px solid var(--hair); left: 20px; padding: 18px 20px 20px;
  position: absolute; right: 20px; top: calc(100% + 1px); z-index: 10;
}
.content-head { align-items: baseline; border-bottom: 1px solid var(--hair); display: flex; gap: 12px; justify-content: space-between; margin-bottom: 14px; padding-bottom: 9px; }
.content-head span { color: var(--red); font-size: 11px; letter-spacing: .12em; }
.content-head strong { color: var(--dim); font-family: var(--sans); font-size: 13px; font-weight: 400; }

main { padding: 42px 0 80px; }
.sec-label {
  font-family: var(--mono); font-size: 12px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--red); margin-bottom: 10px;
}
h1 { font-size: clamp(28px, 5vw, 44px); line-height: 1.08; font-weight: 600; margin-bottom: 14px; }
.lede { color: var(--dim); max-width: 620px; margin-bottom: 8px; }
.lede strong { color: var(--ivory); font-weight: 600; }
.thesis { font-family: var(--mono); font-size: 14px; color: var(--ivory); border-left: 2px solid var(--red); padding-left: 12px; margin: 18px 0 0; }

section { margin-top: 56px; }
h2 { font-family: var(--mono); font-size: 14px; letter-spacing: .12em; text-transform: uppercase;
     color: var(--ivory); border-bottom: 1px solid var(--hair); padding-bottom: 8px; margin-bottom: 16px; }
h2 .no { color: var(--red); margin-right: 8px; }
p { max-width: 640px; color: var(--dim); }
p strong { color: var(--ivory); }
p code, li code, td code { font-family: var(--mono); font-size: .92em; color: var(--ivory); }

pre {
  font-family: var(--mono); font-size: 13px; line-height: 1.5;
  color: var(--ivory); background: #0d1119; border: 1px solid var(--hair);
  padding: 14px 16px; overflow-x: auto; margin: 14px 0;
}
pre .r { color: var(--red); }
pre .g { color: var(--green); }
pre .d { color: var(--dim); }

table { border-collapse: collapse; width: 100%; font-size: 14px; margin: 14px 0; }
th, td { text-align: left; padding: 8px 12px 8px 0; border-bottom: 1px solid var(--hair); vertical-align: top; }
th { font-family: var(--mono); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--dim); font-weight: 500; }
td { color: var(--ivory); }
td.dim { color: var(--dim); }
.tablebox { overflow-x: auto; }
.red { color: var(--red); }
.green { color: var(--green); }
.mono { font-family: var(--mono); font-size: .92em; }

ul.files { list-style: none; columns: 2; gap: 32px; }
ul.files li { margin-bottom: 6px; break-inside: avoid; }
ul.files a { font-family: var(--mono); font-size: 13px; color: var(--ivory); text-decoration: none; border-bottom: 1px solid var(--hair); }
ul.files a:hover { border-bottom-color: var(--red); }
ul.files .note { color: var(--dim); font-size: 12px; margin-left: 6px; }

.receipt {
  margin-top: 64px; border-top: 1px solid var(--hair); padding-top: 14px;
  font-family: var(--mono); font-size: 12px; color: var(--dim);
}
.receipt .sha { color: var(--ivory); }
@media (max-width: 720px) {
  nav { height: 94px; }
  .nav-inner { align-items: flex-start; flex-direction: column; gap: 10px; justify-content: center; padding: 10px 19px 9px; }
  .nav-links { flex-wrap: nowrap; gap: 19px; margin-left: 0; width: calc(100vw - 38px); }
  .nav-links > a, .library-menu { flex: 0 0 auto; }
  .content-panel { max-height: calc(100vh - 110px); overflow-y: auto; }
  .content-head { align-items: flex-start; flex-direction: column; gap: 2px; }
}
@media (max-width: 620px) {
  ul.files { columns: 1; }
}
@media (max-width: 380px) {
  .nav-links { gap: 15px; }
  .nav-links a, .library-menu summary { font-size: 11px; }
}