/* ============================================================================
   POSTERN — pale wisteria ground, lamp amber and night azure, one deep band.
   Every colour token is written by tools/pages.mjs from the solve in
   tools/palette.mjs. NOTHING IN THIS FILE MAY NAME A COLOUR: use var(--…).
   tools/validate.mjs fails the build on a raw hex here.
   ============================================================================ */

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

:root {
  --sans: "Manrope", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --serif: "Instrument Serif", ui-serif, Georgia, "Times New Roman", serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
  --wrap: 1140px;
  --r: 22px;
  --r-sm: 14px;
  --shadow-sm: 0 1px 2px rgb(var(--ink-rgb) / .05), 0 2px 10px rgb(var(--ink-rgb) / .05);
  --shadow: 0 12px 34px rgb(var(--ink-rgb) / .09);
  --shadow-lg: 0 30px 70px rgb(var(--ink-rgb) / .16);
  --pad: clamp(56px, 8vw, 108px);
}

body {
  font-family: var(--sans);
  font-size: 16.5px;
  line-height: 1.62;
  color: var(--ink);
  background: var(--ground);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img, svg, canvas { max-width: 100%; display: block; }
::selection { background: var(--deep); color: var(--deep-ink); }

.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: clamp(18px, 4vw, 32px); }
.mono { font-family: var(--mono); font-size: .92em; letter-spacing: -.01em; }
.num { font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* --- typography ---------------------------------------------------------- */
h1, h2, h3 { font-family: var(--serif); font-weight: 400; line-height: 1.06; letter-spacing: -.012em; }
h1 { font-size: clamp(52px, 10vw, 104px); }
h2 { font-size: clamp(31px, 4.6vw, 50px); line-height: 1.1; }
h3 { font-size: clamp(20px, 2.3vw, 25px); line-height: 1.22; }
h4 { font-family: var(--sans); font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-faint); }
em { font-style: italic; color: var(--accent); }
p { max-width: 68ch; }
p + p { margin-top: 1em; }
strong, b { font-weight: 700; }
code { font-family: var(--mono); font-size: .89em; background: rgb(var(--ink-rgb) / .06); padding: .1em .38em; border-radius: 6px; }
a.link { color: var(--counter); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
a.link:hover { color: var(--accent); }

.eyebrow {
  display: inline-block; font-size: 11.5px; font-weight: 700;
  letter-spacing: .15em; text-transform: uppercase; color: var(--accent);
  margin-bottom: 14px;
}
.lede { font-size: clamp(17px, 1.9vw, 20px); color: var(--ink-muted); line-height: 1.55; }

/* --- buttons ------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  font-family: var(--sans); font-weight: 600; font-size: 15px; line-height: 1;
  padding: 13px 22px; border-radius: 999px; border: 1px solid transparent;
  cursor: pointer; white-space: nowrap;
  transition: transform .16s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn-lg { padding: 16px 28px; font-size: 16px; }
.btn-sm { padding: 9px 16px; font-size: 13.5px; }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none !important; }
/* The CTA sets its own colour explicitly. A nav rule of two classes beats a
   button rule of one, and a sibling shipped a dark label on a dark pill at
   1.3:1 with twenty-two static checks passing over it. */
.bar-nav a.btn, .btn-primary { color: var(--raised); }
.btn-primary { background: var(--deep); box-shadow: var(--shadow-sm); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-line { background: transparent; border-color: rgb(var(--ink-rgb) / .22); color: var(--ink); }
.btn-line:hover { border-color: var(--ink); background: rgb(var(--raised-rgb) / .6); }
.btn-ghost { background: rgb(var(--raised-rgb) / .7); color: var(--ink); }
.btn-ghost:hover { background: var(--raised); }
.btn:focus-visible, a:focus-visible, summary:focus-visible, input:focus-visible, button:focus-visible {
  outline: 2px solid var(--counter); outline-offset: 3px; border-radius: 8px;
}

/* --- top bar ------------------------------------------------------------- */
.bar { position: sticky; top: 0; z-index: 60; padding: 14px 0; }
.bar-in {
  display: flex; align-items: center; gap: 18px;
  background: rgb(var(--raised-rgb) / .78);
  backdrop-filter: saturate(150%) blur(16px);
  -webkit-backdrop-filter: saturate(150%) blur(16px);
  border: 1px solid rgb(var(--ink-rgb) / .07);
  border-radius: 999px; padding: 9px 9px 9px 20px;
  box-shadow: var(--shadow-sm);
  max-width: calc(var(--wrap) - 20px);
}
.brandmark { display: inline-flex; align-items: center; gap: 9px; flex: none; }
.brandmark .bm { display: block; color: var(--ink); }
.brandmark .bn { font-family: var(--serif); font-size: 23px; letter-spacing: -.01em; }
.bar-nav { display: flex; gap: 4px; margin-left: 8px; flex: 1 1 auto; }
.bar-nav a { font-size: 14.5px; font-weight: 500; color: var(--ink-muted); padding: 7px 12px; border-radius: 999px; transition: color .18s, background .18s; }
.bar-nav a:hover { color: var(--ink); background: rgb(var(--ink-rgb) / .05); }
.bar-nav a[aria-current="page"] { color: var(--ink); background: rgb(var(--ink-rgb) / .07); }
.bar-end { display: flex; align-items: center; gap: 8px; flex: none; }
.bar-x { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 999px; color: var(--ink-muted); }
.bar-x:hover { color: var(--ink); background: rgb(var(--ink-rgb) / .06); }
.bar-burger { display: none; width: 38px; height: 34px; background: none; border: 0; cursor: pointer; }
.bar-burger span { display: block; height: 2px; background: var(--ink); border-radius: 2px; margin: 4px auto; width: 18px; transition: transform .2s; }

@media (max-width: 940px) {
  .bar-nav { display: none; }
  .bar-burger { display: block; }
  .bar.open .bar-in { border-radius: 26px; flex-wrap: wrap; }
  .bar.open .bar-nav { display: flex; flex-direction: column; width: 100%; order: 3; padding: 8px 0 6px; }
  .bar.open .bar-nav a { padding: 11px 14px; font-size: 16px; }
}
@media (max-width: 560px) { .bar-end .btn { display: none; } }

/* --- hero ---------------------------------------------------------------- */
.hero { position: relative; margin-top: -78px; padding-top: 78px; }
.hero-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  z-index: -2; background: var(--deep);
}
.hero-in { position: relative; padding: clamp(76px, 10vw, 128px) 0 clamp(104px, 12vw, 150px); }
.glass {
  max-width: 840px; margin-inline: auto; text-align: center;
  background: rgb(var(--raised-rgb) / .80);
  backdrop-filter: saturate(150%) blur(22px);
  -webkit-backdrop-filter: saturate(150%) blur(22px);
  border: 1px solid rgb(255 255 255 / .30);
  border-radius: 32px; padding: clamp(30px, 5vw, 52px);
  box-shadow: var(--shadow-lg);
}
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; color: var(--ink-muted);
  background: rgb(var(--ground-rgb) / .8); border: 1px solid rgb(var(--ink-rgb) / .08);
  padding: 7px 15px; border-radius: 999px; margin-bottom: 22px;
}
.pill .dot { width: 7px; height: 7px; border-radius: 999px; background: var(--pos); }
.hero h1 { margin-bottom: 18px; }
.hero .lede { max-width: 60ch; margin-inline: auto; }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 30px; }
.chips { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-top: 26px; }
.chips span {
  font-size: 12.5px; font-weight: 600; color: var(--ink-muted);
  border: 1px solid rgb(var(--ink-rgb) / .12); padding: 6px 13px; border-radius: 999px;
}

/* the floating readout that overlaps the hero, like a product screenshot */
.float {
  position: relative; z-index: 2; max-width: 430px; margin: -78px auto 0;
  background: var(--raised); border-radius: var(--r);
  box-shadow: var(--shadow-lg); padding: 20px 22px;
  border: 1px solid rgb(var(--ink-rgb) / .06);
}
.float-top { display: flex; align-items: center; gap: 12px; padding-bottom: 14px; border-bottom: 1px solid rgb(var(--ink-rgb) / .08); }
.float-ic { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; background: rgb(var(--ink-rgb) / .06); color: var(--accent); flex: none; }
.float-t { font-weight: 700; font-size: 14.5px; }
.float-s { font-size: 12.5px; color: var(--ink-faint); }
.float-rows { display: grid; gap: 9px; padding: 14px 0 4px; }
.float-row { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; font-size: 13.5px; }
.float-row b { font-family: var(--mono); font-variant-numeric: tabular-nums; font-weight: 500; }

/* --- bands --------------------------------------------------------------- */
.band { padding: var(--pad) 0; }
.band-tint { background: var(--band); }
.band-surface { background: var(--surface); }
/* A DARK BAND MUST OVERRIDE EVERY INK TOKEN IT INHERITS. Setting `color` and
   nothing else is how a sibling shipped .lede, .btn and an h2 accent at 1.2,
   1.4 and 1.9:1 on a dark ground. */
.band-deep {
  background: var(--deep); color: var(--deep-ink);
  --ink: var(--deep-ink); --ink-muted: var(--deep-muted); --ink-faint: var(--deep-muted);
  --accent: var(--deep-accent); --counter: var(--deep-counter);
  --pos: var(--pos-deep); --neg: var(--neg-deep);
  --line: rgb(255 255 255 / .18);
  --raised: rgb(255 255 255 / .07);
  --ink-rgb: 255 255 255; --raised-rgb: 255 255 255;
}
.band-deep .btn-primary { background: var(--deep-accent); color: var(--deep); }
.band-deep .btn-line { border-color: rgb(255 255 255 / .32); color: var(--deep-ink); }
.band-deep code { background: rgb(255 255 255 / .1); }

.head { max-width: 760px; margin-bottom: 48px; }
.head.center { margin-inline: auto; text-align: center; }
.head h2 { margin-bottom: 16px; }
.strip { border-block: 1px solid rgb(var(--ink-rgb) / .1); background: var(--surface); }
.strip-in { display: flex; flex-wrap: wrap; gap: 10px 30px; justify-content: center; padding: 18px 0; font-size: 13.5px; color: var(--ink-muted); }
.strip-in b { color: var(--ink); font-weight: 700; }
.strip-in .sep { color: var(--line); }

/* --- cards --------------------------------------------------------------- */
.grid { display: grid; gap: 18px; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 900px) { .g3, .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .g2, .g3, .g4 { grid-template-columns: minmax(0, 1fr); } }

.card {
  background: var(--raised); border-radius: var(--r); padding: 26px;
  border: 1px solid rgb(var(--ink-rgb) / .06);
  min-width: 0;
}
.band-deep .card { background: rgb(255 255 255 / .06); border-color: rgb(255 255 255 / .12); }
.card h3 { margin-bottom: 10px; }
.card p { color: var(--ink-muted); font-size: 15px; }
.card-ic { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; background: rgb(var(--ink-rgb) / .06); color: var(--accent); margin-bottom: 18px; }
.card ul { list-style: none; margin-top: 16px; display: grid; gap: 9px; }
.card ul li { position: relative; padding-left: 18px; font-size: 14px; color: var(--ink-muted); }
.card ul li::before { content: ""; position: absolute; left: 0; top: .62em; width: 6px; height: 6px; border-radius: 999px; background: var(--accent); }

/* the big number */
.figs { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); }
.fig { background: var(--raised); border-radius: var(--r); padding: 24px; border: 1px solid rgb(var(--ink-rgb) / .06); min-width: 0; }
.band-deep .fig { background: rgb(255 255 255 / .06); border-color: rgb(255 255 255 / .12); }
.fig-n { font-family: var(--serif); font-size: clamp(38px, 5vw, 54px); line-height: 1; letter-spacing: -.02em; }
.fig-n.accent { color: var(--accent); }
.fig-n.counter { color: var(--counter); }
.fig-l { font-size: 13.5px; color: var(--ink-muted); margin-top: 10px; }
.fig-sub { font-size: 12px; color: var(--ink-faint); margin-top: 6px; }

/* --- tables -------------------------------------------------------------- */
.tablewrap { overflow-x: auto; border-radius: var(--r); border: 1px solid rgb(var(--ink-rgb) / .1); background: var(--raised); min-width: 0; }
.band-deep .tablewrap { background: rgb(255 255 255 / .05); }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { text-align: left; padding: 11px 16px; border-bottom: 1px solid rgb(var(--ink-rgb) / .08); white-space: nowrap; }
th { font-size: 11.5px; font-weight: 700; letter-spacing: .07em; text-transform: uppercase; color: var(--ink-faint); }
tbody tr:last-child td { border-bottom: 0; }
td.n { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.ok { color: var(--pos); font-weight: 600; }
.no { color: var(--neg); font-weight: 600; }

/* --- steps / pipeline ---------------------------------------------------- */
.pipe { display: grid; gap: 16px; grid-template-columns: repeat(4, minmax(0, 1fr)); counter-reset: s; }
@media (max-width: 900px) { .pipe { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .pipe { grid-template-columns: minmax(0, 1fr); } }
.pipe-step { background: var(--raised); border-radius: var(--r); padding: 24px; border: 1px solid rgb(var(--ink-rgb) / .06); min-width: 0; }
.pipe-n { font-family: var(--mono); font-size: 12px; color: var(--accent); font-weight: 500; }
.pipe-step b { display: block; font-family: var(--serif); font-weight: 400; font-size: 22px; margin: 8px 0 8px; }
.pipe-step p { font-size: 14px; color: var(--ink-muted); }

/* --- details ------------------------------------------------------------- */
details { border-bottom: 1px solid rgb(var(--ink-rgb) / .1); }
details summary {
  cursor: pointer; list-style: none; padding: 20px 40px 20px 0; position: relative;
  font-family: var(--serif); font-size: clamp(19px, 2.1vw, 23px); line-height: 1.28;
}
details summary::-webkit-details-marker { display: none; }
details summary::after {
  content: ""; position: absolute; right: 8px; top: 50%; width: 10px; height: 10px;
  border-right: 2px solid var(--ink-faint); border-bottom: 2px solid var(--ink-faint);
  transform: translateY(-70%) rotate(45deg); transition: transform .2s;
}
details[open] summary::after { transform: translateY(-30%) rotate(-135deg); }
details > p, details > div { padding-bottom: 22px; color: var(--ink-muted); }

/* --- notes / callouts ---------------------------------------------------- */
.note {
  border-left: 3px solid var(--accent); padding: 4px 0 4px 18px;
  color: var(--ink-muted); font-size: 15px; margin: 22px 0;
}
.note b { color: var(--ink); }
.tag {
  display: inline-flex; align-items: center; gap: 6px; font-size: 11.5px; font-weight: 700;
  letter-spacing: .06em; text-transform: uppercase; padding: 4px 10px; border-radius: 999px;
  border: 1px solid currentColor;
}
.tag.executed, .tag.measured, .tag.live { color: var(--pos); }
.tag.computed { color: var(--counter); }
.tag.none { color: var(--neg); }

/* --- forms --------------------------------------------------------------- */
.field { display: flex; gap: 10px; flex-wrap: wrap; }
.field input {
  flex: 1 1 320px; min-width: 0; font-family: var(--mono); font-size: 14px;
  padding: 14px 18px; border-radius: 999px; border: 1px solid rgb(var(--ink-rgb) / .16);
  background: var(--raised); color: var(--ink);
}
.field input::placeholder { color: var(--ink-faint); opacity: 1; }

/* --- the live wall ------------------------------------------------------- */
.wall { display: grid; gap: 8px; grid-template-columns: repeat(auto-fill, minmax(178px, 1fr)); }
.tile {
  background: var(--raised); border: 1px solid rgb(var(--ink-rgb) / .07);
  border-radius: var(--r-sm); padding: 11px 13px; min-width: 0;
  display: grid; gap: 3px; transition: transform .18s ease, box-shadow .18s ease;
}
.tile:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.tile.open { border-color: color-mix(in oklab, var(--accent) 45%, transparent); background: color-mix(in oklab, var(--accent) 9%, var(--raised)); }
.tile-sym {
  font-weight: 700; font-size: 13.5px; letter-spacing: -.01em;
  /* CLAMPED. An on-chain symbol is a string a stranger chose, and a sibling
     met one 9,575 characters long that took its layout 25,000 px sideways. */
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0;
}
.tile-amt { font-family: var(--mono); font-size: 11.5px; color: var(--ink-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tile-sp { font-family: var(--mono); font-size: 10.5px; color: var(--ink-faint); }
.tile.open .tile-amt { color: var(--accent); font-weight: 500; }

/* --- misc ---------------------------------------------------------------- */
.spinner { display: inline-block; width: 14px; height: 14px; border: 2px solid rgb(var(--ink-rgb) / .2); border-top-color: var(--accent); border-radius: 999px; animation: spin .8s linear infinite; vertical-align: -2px; }
@keyframes spin { to { transform: rotate(360deg); } }
.hr { height: 1px; background: rgb(var(--ink-rgb) / .1); margin: var(--pad) 0; }
.bar-chart { display: grid; gap: 7px; }
.bar-row { display: grid; grid-template-columns: 96px 1fr 68px; align-items: center; gap: 12px; font-size: 13px; }
/* A SPAN IS INLINE AND WIDTH DOES NOT APPLY TO IT. A sibling shipped four
   identical empty rectangles with every static check green because this rule
   was missing. */
.bar-fill { display: block; height: 12px; border-radius: 999px; background: var(--accent); min-width: 2px; }
.bar-fill.alt { background: var(--counter); }
.bar-row .num { text-align: right; }

/* Scroll reveal is scoped to .js, which an inline script in <head> sets. An
   unscoped rule leaves the whole page at opacity 0 for anyone without
   JavaScript. */
.js [data-reveal] { opacity: 0; transform: translateY(14px); }
.js [data-reveal].in { opacity: 1; transform: none; transition: opacity .6s ease, transform .6s cubic-bezier(.2,.7,.3,1); }

/* --- footer -------------------------------------------------------------- */
.foot { background: var(--deep); color: var(--deep-ink); padding: clamp(48px, 7vw, 76px) 0 26px; margin-top: var(--pad); }
.foot .brandmark .bm, .foot .brandmark .bn { color: var(--deep-ink); }
.foot-in { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 32px; }
@media (max-width: 820px) { .foot-in { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .foot-in { grid-template-columns: 1fr; } }
.foot-brand p { color: var(--deep-muted); font-size: 14.5px; margin-top: 14px; max-width: 42ch; }
.foot-note { font-size: 12.5px !important; }
.foot-col h4 { color: var(--deep-muted); margin-bottom: 14px; }
.foot-col a { display: block; font-size: 14.5px; color: var(--deep-ink); padding: 5px 0; opacity: .85; }
.foot-col a:hover { opacity: 1; color: var(--deep-accent); }
.foot-bar { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; margin-top: 42px; padding-top: 20px; border-top: 1px solid rgb(255 255 255 / .13); font-size: 12.5px; color: var(--deep-muted); }