/* pactprotocol.dev: one dark look, the Pact app's own ink with its two party colors (orange, violet). */
@font-face { font-family: "Instrument Serif"; font-style: normal; font-weight: 400; font-display: swap; src: url(/assets/fonts/instrument-serif.woff2) format("woff2"); }
@font-face { font-family: "Instrument Serif"; font-style: italic; font-weight: 400; font-display: swap; src: url(/assets/fonts/instrument-serif-italic.woff2) format("woff2"); }
@font-face { font-family: "Instrument Sans"; font-style: normal; font-weight: 400 700; font-display: swap; src: url(/assets/fonts/instrument-sans.woff2) format("woff2"); }
@font-face { font-family: "JetBrains Mono"; font-style: normal; font-weight: 400 700; font-display: swap; src: url(/assets/fonts/jetbrains-mono.woff2) format("woff2"); }

:root {
  color-scheme: dark;
  --ink: #0b0a0e;
  --surface: #121117;
  --raised: #18171f;
  --line: #27252f;
  --line-soft: #1d1c24;
  --text: #edecf1;
  --muted: #aba9b6;
  --dim: #7b7985;
  --orange: #f7931a;
  --violet: #8a5cf6;
  --violet-text: #b39dff;
  --ok: #5ad17f;
  --serif: "Instrument Serif", "Iowan Old Style", Georgia, serif;
  --sans: "Instrument Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { background: var(--ink); scroll-behavior: smooth; }
body { margin: 0; background: var(--ink); color: var(--text); font: 400 18px/1.6 var(--sans); -webkit-font-smoothing: antialiased; }
.wrap { max-width: 1120px; margin: 0 auto; padding-inline: clamp(16px, 4vw, 40px); }
a { color: var(--text); text-decoration-color: var(--violet); text-underline-offset: 3px; }
a:hover { color: var(--violet-text); }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--violet-text); outline-offset: 3px; border-radius: 4px; }
img, video { max-width: 100%; }
code, pre, kbd { font-family: var(--mono); }
p code, li code, td code { font-size: .86em; color: var(--text); background: var(--raised); border: 1px solid var(--line); border-radius: 5px; padding: 1px 5px; overflow-wrap: anywhere; }

/* header */
header.top { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 24px; padding-block: 22px; }
.lock { display: flex; align-items: center; gap: 10px; text-decoration: none; font: 600 21px/1 var(--sans); letter-spacing: -.01em; }
.lock svg { width: 32px; height: 32px; flex: none; }
header.top nav { display: flex; align-items: center; gap: 24px; margin-left: auto; font-size: 16px; }
header.top nav a { color: var(--muted); text-decoration: none; white-space: nowrap; }
header.top nav a:hover, header.top nav a[aria-current] { color: var(--text); }
.btn { display: inline-flex; align-items: center; gap: 8px; border-radius: 999px; padding: 10px 18px; font: 600 16px/1.2 var(--sans); text-decoration: none; border: 1px solid var(--line); color: var(--text); background: var(--raised); }
.btn:hover { border-color: var(--violet); color: var(--text); }
.btn.primary { background: var(--orange); border-color: var(--orange); color: #1a1003; }
.btn.primary:hover { background: #ffa531; color: #1a1003; }
header.top > .btn { padding: 8px 16px; font-size: 15px; white-space: nowrap; }

/* hero */
.hero { position: relative; text-align: center; padding-block: 0 clamp(48px, 8vw, 96px); }
#bondfield { display: block; width: 100%; height: clamp(200px, 30vh, 320px); }
.kicker { font: 500 12px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--dim); margin: 0 0 18px; }
.hero h1 { font: 400 clamp(52px, 9vw, 108px)/.96 var(--serif); letter-spacing: -.01em; margin: -12px 0 0; text-wrap: balance; }
.hero h1 em { font-style: italic; background: linear-gradient(90deg, var(--orange), #c770a0 55%, var(--violet)); -webkit-background-clip: text; background-clip: text; color: transparent; padding-right: .06em; }
.hero .lede { font-size: clamp(18px, 2.2vw, 21px); color: var(--muted); max-width: 36em; margin: 26px auto 0; text-wrap: pretty; }
.cta { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 30px; }
.facts { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 18px; list-style: none; padding: 0; margin: 28px 0 0; font: 400 13px/1.4 var(--mono); color: var(--dim); }
.facts li + li::before { content: "·"; margin-right: 18px; color: var(--line); }

/* sections, numbered like a spec's clauses */
section { border-top: 1px solid var(--line-soft); padding-block: clamp(56px, 9vw, 112px); }
.clause { font: 500 13px/1 var(--mono); color: var(--dim); margin: 0 0 16px; letter-spacing: .04em; }
.clause b { color: var(--orange); font-weight: 600; }
h2 { font: 400 clamp(38px, 5vw, 58px)/1.02 var(--serif); letter-spacing: -.005em; margin: 0; text-wrap: balance; max-width: 18em; }
h3 { font: 600 20px/1.3 var(--sans); margin: 0 0 6px; }
.sub { color: var(--muted); max-width: 40em; margin: 18px 0 0; font-size: clamp(17px, 1.9vw, 19px); text-wrap: pretty; }
.after { color: var(--muted); max-width: 44em; margin: 28px 0 0; }

/* film */
figure.film { margin: 36px 0 0; }
figure.film video { display: block; width: 100%; aspect-ratio: 16 / 9; height: auto; border-radius: 16px; border: 1px solid var(--line); background: #000; }
figure.film figcaption { margin-top: 12px; color: var(--dim); font-size: 15px; }

/* steps */
ol.steps { list-style: none; padding: 0; margin: 40px 0 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; counter-reset: step; }
ol.steps li { counter-increment: step; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); padding: 22px 22px 24px; min-width: 0; }
ol.steps li::before { content: counter(step, decimal-leading-zero); display: block; font: 600 13px/1 var(--mono); color: var(--orange); margin-bottom: 18px; }
ol.steps li:nth-child(2)::before { color: #c770a0; }
ol.steps li:nth-child(3)::before { color: var(--violet-text); }
ol.steps p { margin: 0; color: var(--muted); font-size: 16px; }
.mutual { display: flex; align-items: center; gap: 12px; margin-top: 18px; font: 500 14px/1.4 var(--mono); color: var(--ok); }
.mutual::before { content: ""; width: 9px; height: 9px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 4px rgba(90, 209, 127, .15); flex: none; }

/* two views of one private bond */
.views { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; margin-top: 40px; }
.view { border: 1px solid var(--line); border-radius: 14px; background: var(--surface); min-width: 0; display: flex; flex-direction: column; }
.view header { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding: 16px 20px; border-bottom: 1px solid var(--line-soft); }
.view header b { font-weight: 600; }
.view header span { font: 400 12px/1 var(--mono); color: var(--dim); }
.view pre { margin: 0; padding: 18px 20px; font-size: 13px; line-height: 1.7; color: var(--muted); overflow-x: auto; flex: 1; }
.view pre .k { color: var(--dim); }
.view pre .s { color: var(--text); }
.view pre .o { color: var(--orange); }
.view pre .v { color: var(--violet-text); }
.view p { margin: 0; padding: 14px 20px 18px; border-top: 1px solid var(--line-soft); font-size: 15px; color: var(--muted); }
.view.relay pre .s { color: var(--dim); }

/* the bond record */
.record-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: clamp(28px, 5vw, 64px); align-items: start; margin-top: 40px; }
.record-grid .copy p { color: var(--muted); margin: 0 0 16px; }
blockquote.creed { margin: 28px 0 0; padding: 0 0 0 20px; border-left: 2px solid var(--violet); font: 400 italic clamp(24px, 2.6vw, 30px)/1.25 var(--serif); color: var(--text); }
.record { position: relative; border: 1px solid var(--line); border-radius: 16px; background: linear-gradient(180deg, var(--raised), var(--surface)); overflow: hidden; font-family: var(--mono); font-size: 13px; min-width: 0; }
.record::before { content: ""; display: block; height: 3px; background: linear-gradient(90deg, var(--orange), var(--violet)); }
.record .head { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding: 18px 20px 14px; border-bottom: 1px dashed var(--line); }
.record .head b { font: 400 26px/1 var(--serif); letter-spacing: 0; color: var(--text); }
.record .state { align-self: center; color: var(--ok); border: 1px solid rgba(90, 209, 127, .35); border-radius: 999px; padding: 4px 10px; font-size: 11px; letter-spacing: .1em; text-transform: uppercase; }
.record dl { margin: 0; padding: 14px 20px; display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 8px 18px; }
.record dt { color: var(--dim); }
.record dd { margin: 0; color: var(--text); overflow-wrap: anywhere; }
.record .a { color: var(--orange); }
.record .b { color: var(--violet-text); }
.record ol { list-style: none; margin: 0; padding: 6px 20px 18px; border-top: 1px dashed var(--line); font-variant-numeric: tabular-nums; }
.record ol li { display: grid; grid-template-columns: 7.5em 1fr auto; gap: 12px; padding: 7px 0; border-bottom: 1px solid var(--line-soft); color: var(--muted); }
.record ol li:last-child { border-bottom: 0; }
.record ol .t { color: var(--dim); text-align: right; }
.record .label { padding: 0 20px 16px; color: var(--dim); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 4px; vertical-align: 1px; }
.dot.a { background: var(--orange); } .dot.b { background: var(--violet); }

/* the board */
.board { margin-top: 36px; border: 1px solid var(--line); border-radius: 16px; background: var(--surface); padding: 8px 20px 16px; min-width: 0; }
.board .status { font: 400 13px/1.5 var(--mono); color: var(--dim); margin: 12px 0 4px; min-height: 1.5em; }
.board .muted { color: var(--muted); margin: 12px 0; }
ol.board-rows { list-style: none; margin: 4px 0 0; padding: 0; }
ol.board-rows li { display: grid; grid-template-columns: 2.5em minmax(0, 1fr) auto; gap: 16px; align-items: center; padding: 14px 0; border-top: 1px solid var(--line-soft); }
ol.board-rows .rank { font: 600 13px/1 var(--mono); color: var(--dim); }
ol.board-rows .who b { display: block; font: 600 14px/1.4 var(--mono); overflow-wrap: anywhere; }
ol.board-rows .who small { display: block; color: var(--muted); font-size: 14px; overflow-wrap: anywhere; }
ol.board-rows .rec { text-align: right; font: 400 13px/1.5 var(--mono); color: var(--dim); white-space: nowrap; font-variant-numeric: tabular-nums; }
ol.board-rows .rec b { color: var(--text); font-weight: 600; }
.formula { font: 400 14px/1.6 var(--mono); color: var(--muted); margin: 18px 0 0; overflow-wrap: anywhere; }
.formula b { color: var(--text); font-weight: 600; }
.more { display: inline-block; margin-top: 20px; font-weight: 600; text-decoration: none; color: var(--violet-text); }
.more:hover { text-decoration: underline; }

/* possibilities */
ul.ideas { list-style: none; padding: 0; margin: 40px 0 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); border-radius: 16px; overflow: hidden; }
ul.ideas li { background: var(--ink); padding: 26px 24px 28px; min-width: 0; }
ul.ideas p { margin: 0; color: var(--muted); font-size: 16px; }
ul.ideas small { display: block; margin-top: 14px; font: 400 12px/1.5 var(--mono); color: var(--dim); }

/* status */
ul.limits { list-style: none; padding: 0; margin: 36px 0 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
ul.limits li { border: 1px solid var(--line); border-radius: 14px; padding: 20px 22px; background: var(--surface); min-width: 0; }
ul.limits p { margin: 0; color: var(--muted); font-size: 16px; }

/* ways in */
ul.doors { list-style: none; padding: 0; margin: 40px 0 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
ul.doors a { display: flex; flex-direction: column; gap: 8px; height: 100%; padding: 24px; border: 1px solid var(--line); border-radius: 16px; background: var(--surface); text-decoration: none; }
ul.doors a:hover { border-color: var(--violet); color: var(--text); }
ul.doors span { color: var(--muted); font-size: 16px; }
ul.doors em { margin-top: auto; padding-top: 10px; font: normal 600 15px/1 var(--sans); color: var(--violet-text); }

/* doc pages */
.doc-hero { padding-block: clamp(40px, 7vw, 80px) clamp(24px, 4vw, 40px); }
.doc-hero h1 { font: 400 clamp(48px, 7vw, 84px)/1 var(--serif); margin: 0; letter-spacing: -.01em; text-wrap: balance; }
.doc-hero p { color: var(--muted); font-size: clamp(18px, 2vw, 20px); max-width: 38em; margin: 20px 0 0; }
.doc section { padding-block: clamp(40px, 6vw, 72px); }
.doc h2 { font-size: clamp(32px, 4vw, 44px); }
.doc h3 { margin-top: 32px; }
.doc p, .doc li { color: var(--muted); }
.doc p { max-width: 44em; }
.doc ol.howto { padding-left: 1.3em; max-width: 44em; }
.doc ol.howto li { margin: 8px 0; padding-left: 4px; }
.doc ol.howto li::marker { font: 600 14px var(--mono); color: var(--orange); }
.doc strong { color: var(--text); }
pre.code { margin: 18px 0 0; padding: 18px 20px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); font-size: 14px; line-height: 1.7; color: var(--text); overflow-x: auto; max-width: 100%; }
pre.code .c { color: var(--dim); }
.tbl { margin-top: 20px; overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; }
.tbl table { width: 100%; border-collapse: collapse; font-size: 15px; min-width: 560px; }
.tbl th, .tbl td { text-align: left; vertical-align: top; padding: 11px 16px; border-bottom: 1px solid var(--line-soft); }
.tbl tr:last-child td { border-bottom: 0; }
.tbl th { font: 600 12px/1.4 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--dim); background: var(--surface); }
.tbl td { color: var(--muted); }
.tbl td:first-child { white-space: nowrap; font: 500 13.5px/1.5 var(--mono); color: var(--text); }
.note { margin-top: 22px; padding: 16px 20px; border: 1px solid rgba(247, 147, 26, .4); background: rgba(247, 147, 26, .07); border-radius: 12px; color: var(--text); max-width: 46em; }
.note p { color: var(--text); margin: 0; }
.toc { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 28px 0 0; }
.toc a { display: inline-block; padding: 7px 14px; border: 1px solid var(--line); border-radius: 999px; font-size: 15px; text-decoration: none; color: var(--muted); }
.toc a:hover { color: var(--text); border-color: var(--violet); }
.pair { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; margin-top: 24px; }
.pair > div { border: 1px solid var(--line); border-radius: 14px; padding: 20px 22px; background: var(--surface); min-width: 0; }
.pair h3 { margin-top: 0; }
.pair p { margin: 0 0 10px; font-size: 16px; }

/* footer */
footer.site { border-top: 1px solid var(--line-soft); padding-block: 48px 56px; color: var(--dim); font-size: 15px; }
footer.site .cols { display: grid; grid-template-columns: 1.4fr repeat(4, minmax(0, 1fr)); gap: 28px; }
footer.site h4 { font: 500 12px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--dim); margin: 0 0 14px; }
footer.site ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
footer.site a { color: var(--muted); text-decoration: none; }
footer.site a:hover { color: var(--text); text-decoration: underline; }
footer.site .about p { margin: 12px 0 0; max-width: 22em; }

@media (max-width: 900px) {
  ol.steps, ul.doors, ul.ideas { grid-template-columns: 1fr; }
  .views, .record-grid, ul.limits, .pair { grid-template-columns: 1fr; }
  footer.site .cols { grid-template-columns: 1fr 1fr; }
  footer.site .about { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
  header.top > .btn { margin-left: auto; }
  header.top nav { order: 3; width: 100%; margin-left: 0; gap: 22px; font-size: 15px; }
  .facts li + li::before { display: none; }
  .facts { gap: 6px 14px; }
  .record ol li { grid-template-columns: 6.5em 1fr; }
  .record ol .t { display: none; }
  ol.board-rows li { grid-template-columns: 2em minmax(0, 1fr); }
  ol.board-rows .rec { grid-column: 2; text-align: left; }
  ol.board-rows .rec br { display: none; }
}
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
  .reveal.in { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
.doc-hero p.kicker { font-size: 12px; color: var(--dim); margin: 0 0 18px; }