/* Foldbank — a drafting sheet in white-print: pale paper, navy linework, one red-pencil accent for the fold. */
:root {
  --paper: #EEF1EC;
  --sheet: #F8FAF5;
  --ink: #13305A;
  --ink2: #4A6283;
  --rule: rgba(19, 48, 90, .16);
  --grid: rgba(19, 48, 90, .055);
  --pencil: #D9402B;
  --pencil-soft: rgba(217, 64, 43, .10);
  --line: #2C5C9A;
  --disp: 'Oxanium', 'Work Sans', system-ui, sans-serif;
  --body: 'Work Sans', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
}
* { box-sizing: border-box; }
html { background: var(--paper); }
html, body { margin: 0; }
body {
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 22px 22px;
  color: var(--ink); font: 15px/1.55 var(--body);
  display: flex; flex-direction: column; gap: 14px;
  padding: 10px 50px 40px 14px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
.col-a, .col-b { display: contents; }
.titleblock { order: 0; }
.lede { order: 1; }
.steprail { order: 2; }
.drafting { order: 3; }
.slip { order: 4; }
.feed { order: 5; }
.spec { order: 6; }
.colophon { order: 7; }
a { color: var(--line); }
code { font-family: var(--mono); }
button { font: inherit; cursor: pointer; }

/* ---------- title block: a drawing's corner stamp, one thin line ---------- */
.titleblock {
  display: flex; align-items: center; gap: 9px; flex-wrap: wrap;
  font: 600 11px/1 var(--mono); letter-spacing: .04em; text-transform: uppercase; color: var(--ink2);
  border-bottom: 1px solid var(--rule); padding: 4px 0 9px; min-height: 0;
}
.tb-mark { width: 24px; height: 24px; border-radius: 5px; display: block; }
.tb-name { font: 800 15px/1 var(--disp); letter-spacing: .02em; text-transform: none; color: var(--ink); }
.tb-sheet { padding: 3px 6px; border: 1px solid var(--rule); border-radius: 3px; }
.tb-timer { margin-left: auto; }
.tb-timer b { color: var(--ink); font-weight: 600; }
.tb-timer[data-hot="1"] b { color: var(--pencil); }

/* ---------- the lede: the live sentence, a paragraph not a poster ---------- */
.lede {
  margin: 4px 0 0; font: 400 17.5px/1.5 var(--body); color: var(--ink); max-width: 46em;
}
.lede b { font-weight: 600; }
.lede .pen { color: var(--pencil); font-weight: 600; }
.lede em { font-style: normal; background: var(--pencil-soft); padding: 0 3px; border-radius: 2px; }

/* ---------- wizard steps: the rounds of this bank ---------- */
.steprail { overflow-x: auto; scrollbar-width: none; margin: 0 -50px 0 -14px; padding: 0 50px 8px 14px; }
.steprail::-webkit-scrollbar { display: none; }
.steps { list-style: none; margin: 0; padding: 0; display: flex; gap: 0; counter-reset: s; min-width: min-content; }
.step {
  position: relative; flex: 0 0 auto; min-width: 92px; padding: 8px 12px 8px 10px;
  border: 1px solid var(--rule); border-right: none; background: var(--sheet);
  font: 500 11px/1.25 var(--mono); color: var(--ink2);
}
.step:last-child { border-right: 1px solid var(--rule); }
.step-n { display: block; font: 700 13px/1.1 var(--disp); color: var(--ink); letter-spacing: .02em; }
.step-x { display: block; margin-top: 3px; white-space: nowrap; }
.step.is-done .step-n { text-decoration: line-through; text-decoration-color: var(--pencil); text-decoration-thickness: 2px; }
.step.is-done .step-x b { color: var(--pencil); font-weight: 600; }
.step.is-now { background: var(--ink); color: rgba(248, 250, 245, .78); border-color: var(--ink); }
.step.is-now .step-n { color: var(--sheet); }
.step.is-ghost { background: transparent; border-style: dashed; opacity: .7; }
.step.is-now::after {
  content: ''; position: absolute; left: 50%; bottom: -7px; transform: translateX(-50%);
  border: 6px solid transparent; border-top-color: var(--ink); border-bottom: 0;
}

/* ---------- the drafting plate: the live ladder ---------- */
.drafting {
  background: var(--sheet); border: 1.5px solid var(--ink); border-radius: 2px; padding: 12px 12px 14px;
  box-shadow: 4px 4px 0 rgba(19, 48, 90, .12);
}
.drafting-head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; margin-bottom: 8px; }
.drafting-head.is-under { margin-top: 14px; padding-top: 10px; border-top: 1px dashed var(--rule); }
.dh-title { font: 700 14px/1.1 var(--disp); letter-spacing: .03em; text-transform: uppercase; }
.dh-meta { font: 400 11px/1.2 var(--mono); color: var(--ink2); text-align: right; }
.rungs { list-style: none; margin: 0; padding: 0; display: grid; gap: 5px; }
.rung {
  display: grid; grid-template-columns: 22px minmax(0, 1fr) auto; grid-template-areas: "n bar amt" "n who tag";
  column-gap: 9px; row-gap: 2px; align-items: center; padding: 6px 8px; border: 1px solid var(--rule);
  border-radius: 2px; background: var(--paper); transition: background .4s;
}
.rung-n { grid-area: n; font: 700 13px/1 var(--disp); color: var(--ink2); text-align: center; }
.rung-bar { grid-area: bar; height: 12px; position: relative; border-left: 1px solid var(--ink); }
.rung-bar i {
  position: absolute; left: 0; top: 1px; bottom: 1px; background:
    repeating-linear-gradient(135deg, var(--line) 0 2px, transparent 2px 6px); border: 1px solid var(--line); border-left: 0;
}
.rung-amt { grid-area: amt; font: 600 14px/1 var(--mono); color: var(--ink); text-align: right; }
.rung-who { grid-area: who; font: 400 10.5px/1.3 var(--mono); color: var(--ink2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; }
.rung-tag { grid-area: tag; font: 600 10.5px/1.2 var(--mono); color: var(--ink2); text-align: right; white-space: nowrap; }
.rung.is-bottom { border: 1.5px solid var(--pencil); background: var(--pencil-soft); }
.rung.is-bottom .rung-bar i { background: repeating-linear-gradient(135deg, var(--pencil) 0 2px, transparent 2px 6px); border-color: var(--pencil); }
.rung.is-bottom .rung-tag, .rung.is-bottom .rung-n { color: var(--pencil); }
.rung.is-me .rung-who { color: var(--ink); font-weight: 600; }
.rung.is-empty { background: transparent; border-style: dashed; }
.rung.is-empty .rung-amt { color: var(--ink2); font-weight: 400; font-size: 12px; }
.rung.is-first { border: 1.5px solid var(--ink); background: var(--sheet); }
.rung.is-first .rung-tag { color: var(--sheet); background: var(--ink); padding: 3px 6px; border-radius: 2px; }
.rung.is-taker { border-color: var(--ink); background: rgba(44, 92, 154, .10); }
.rung.is-fresh { animation: inked 1.6s ease-out; }
@keyframes inked { from { background: rgba(44, 92, 154, .28); } to { background: var(--paper); } }

.foldnote {
  margin-top: 10px; display: grid; grid-template-columns: auto 1fr; grid-template-areas: "k v" "pay pay";
  gap: 2px 10px; align-items: baseline; padding: 9px 11px; border: 1.5px dashed var(--pencil); border-radius: 2px;
}
.fn-k { grid-area: k; font: 700 11px/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--pencil); }
.fn-v { grid-area: v; font: 800 26px/1.05 var(--disp); color: var(--pencil); text-align: right; }
.fn-pay { grid-area: pay; font: 400 12.5px/1.4 var(--body); color: var(--ink); }
.foldedlist, .feedlist, .closedlist { list-style: none; margin: 0; padding: 0; }
.fold-row {
  display: grid; grid-template-columns: 34px minmax(0, 1fr) auto; gap: 8px; align-items: baseline;
  padding: 5px 2px; border-bottom: 1px solid var(--rule); font: 400 12px/1.35 var(--mono); color: var(--ink2);
}
.fold-r { font: 700 12px/1 var(--disp); color: var(--pencil); }
.fold-row s { color: var(--pencil); text-decoration-thickness: 2px; }
.fold-who { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; }
.fold-pay { color: var(--ink); font-weight: 600; white-space: nowrap; }
.hush { font: 400 12px/1.5 var(--body); color: var(--ink2); padding: 6px 2px; }

/* ---------- the slip ---------- */
.slip { background: var(--sheet); border: 1px solid var(--rule); border-top: 3px solid var(--ink); padding: 12px; border-radius: 2px; }
.slip-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.slip-t { font: 700 15px/1 var(--disp); text-transform: uppercase; letter-spacing: .03em; }
.slip-wallet { background: none; border: 1px solid var(--ink); color: var(--ink); padding: 6px 10px; border-radius: 2px; font: 600 11px/1 var(--mono); }
.presets { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; margin-bottom: 8px; }
.preset { border: 1px solid var(--rule); background: var(--paper); color: var(--ink); padding: 9px 0; border-radius: 2px; font: 600 13px/1 var(--mono); }
.preset[aria-pressed="true"] { border-color: var(--ink); background: var(--ink); color: var(--sheet); }
.amount { display: flex; align-items: center; border: 1.5px solid var(--ink); background: var(--paper); border-radius: 2px; padding: 0 12px; }
.amount input { flex: 1; min-width: 0; border: 0; background: transparent; color: var(--ink); font: 700 24px/1 var(--disp); padding: 11px 0; outline: none; }
.amount span { font: 600 12px/1 var(--mono); color: var(--ink2); }
.slip-proj { font: 400 13px/1.45 var(--body); margin: 9px 0 10px; min-height: 2.9em; }
.slip-proj em { font-style: normal; color: var(--pencil); font-weight: 600; }
.slip-go { width: 100%; border: 0; background: var(--pencil); color: var(--sheet); padding: 14px; border-radius: 2px; font: 800 17px/1 var(--disp); letter-spacing: .04em; text-transform: uppercase; }
.slip-go:disabled { opacity: .5; cursor: default; }
.slip-mine { font: 400 11.5px/1.4 var(--mono); color: var(--ink2); margin: 9px 0 0; }
.slip-side { margin-top: 8px; width: 100%; background: transparent; border: 1px dashed var(--ink); color: var(--ink); padding: 9px; border-radius: 2px; font: 600 12px/1 var(--mono); }
.slip-side.is-pay { border-style: solid; background: var(--ink); color: var(--sheet); }

/* ---------- the tape ---------- */
.feed { background: var(--sheet); border: 1px solid var(--rule); padding: 12px; border-radius: 2px; }
.feedlist li { display: grid; grid-template-columns: 38px minmax(0, 1fr) auto; gap: 8px; align-items: baseline; padding: 6px 0; border-bottom: 1px dotted var(--rule); font: 400 12px/1.4 var(--body); }
.feedlist li.is-new { animation: inked 1.6s ease-out; }
.f-k { font: 700 10px/1 var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--ink2); }
.feedlist li[data-k="folded"] .f-k { color: var(--pencil); }
.f-t { min-width: 0; overflow-wrap: anywhere; }
.f-t code { font-size: 11px; }
.f-w { font: 400 10.5px/1 var(--mono); color: var(--ink2); }
.closedlist li { padding: 6px 0; border-bottom: 1px dotted var(--rule); font: 400 12px/1.4 var(--body); overflow-wrap: anywhere; }

/* ---------- the spec sheet (rules) ---------- */
.spec { border-top: 1.5px solid var(--ink); padding-top: 10px; }
.spec-h { font: 700 18px/1.2 var(--disp); margin: 0 0 8px; letter-spacing: .02em; }
.spec-list { margin: 0; padding-left: 20px; display: grid; gap: 6px; font-size: 14px; }
.worked { margin: 12px 0; padding: 10px 12px; background: var(--sheet); border-left: 3px solid var(--pencil); }
.worked-k { font: 700 11px/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--pencil); }
.worked p { margin: 6px 0 0; font-size: 14px; }
.spec-fine { font-size: 12.5px; color: var(--ink2); }
.lookup { margin-top: 10px; padding: 10px; border: 1px solid var(--rule); background: var(--sheet); font: 400 12px/1.5 var(--mono); overflow-wrap: anywhere; }

/* ---------- colophon ---------- */
.colophon { border-top: 1px solid var(--rule); padding-top: 12px; font: 400 12px/1.5 var(--mono); color: var(--ink2); }
.co-row { display: grid; grid-template-columns: 100px minmax(0, 1fr); gap: 8px; padding: 3px 0; }
.co-row code { overflow-wrap: anywhere; color: var(--ink); }
.co-links { display: flex; gap: 14px; flex-wrap: wrap; margin: 8px 0; }
.co-fine { margin: 0; }

/* ---------- the CA rail: a drawing's margin strip on the right edge, address set vertically, one-tap copy ---------- */
.capill {
  position: fixed; right: 0; top: 50%; transform: translateY(-50%); z-index: 30;
  writing-mode: vertical-rl; display: flex; align-items: center; gap: 10px;
  padding: 12px 8px; border-radius: 12px 0 0 12px;
  background: var(--ink); color: var(--sheet); box-shadow: -6px 0 22px rgba(19, 48, 90, .22);
}
.cp-tk { font: 700 10.5px/1 var(--mono); letter-spacing: .08em; opacity: .75; }
.cp-addr { font: 600 11.5px/1 var(--mono); letter-spacing: .01em; user-select: all; white-space: nowrap; }
.cp-addr.is-wait { opacity: .75; font-weight: 400; }
.cp-copy { background: var(--pencil); color: var(--sheet); border: 0; border-radius: 9px; padding: 12px 6px; font: 700 11px/1 var(--mono); letter-spacing: .06em; }
.cp-copy[data-done="1"] { background: var(--sheet); color: var(--ink); }
.cp-gm { font: 400 10px/1 var(--mono); color: rgba(248, 250, 245, .7); }

.pops { position: fixed; top: 12px; left: 50%; transform: translateX(-50%); z-index: 40; display: grid; gap: 6px; width: min(92vw, 420px); pointer-events: none; }
.pop { background: var(--ink); color: var(--sheet); padding: 10px 14px; border-radius: 3px; font: 500 13px/1.4 var(--body); box-shadow: 0 6px 18px rgba(19, 48, 90, .25); }

/* ---------- 720–1000: one column, a wider measure ---------- */
@media (min-width: 700px) {
  body { padding: 14px 64px 48px 32px; gap: 18px; font-size: 16px; }
  .lede { font-size: 19px; }
  .rung { grid-template-columns: 30px minmax(0, 1fr) 150px 110px; grid-template-areas: "n bar who amt" "n bar tag tag"; padding: 8px 12px; }
  .rung-bar { height: 16px; }
  .rung-amt { font-size: 16px; }
  .fn-v { font-size: 32px; }
  .step { min-width: 110px; padding: 10px 14px; }
  .steprail { margin: 0; padding: 0 0 8px; }
  .capill { padding: 16px 10px; gap: 14px; }
  .cp-tk { font-size: 11.5px; }
  .cp-addr { font-size: 14px; }
}

/* ---------- ≥ 1000: the sheet recomposes — ladder left, slip + tape in a right column ---------- */
@media (min-width: 1000px) {
  html { min-height: 100%; }
  body {
    display: grid; max-width: 1180px; margin: 0 auto; gap: 18px 28px;
    grid-template-columns: minmax(0, 1fr) 370px;
    grid-template-areas: "tb tb" "lede colb" "cola colb" "foot foot";
    align-items: start; padding: 18px 72px 56px 32px;
  }
  .titleblock { grid-area: tb; }
  .lede { grid-area: lede; font-size: 19.5px; }
  .col-a { display: flex; flex-direction: column; gap: 18px; grid-area: cola; min-width: 0; }
  .col-b { display: flex; flex-direction: column; gap: 18px; grid-area: colb; position: sticky; top: 16px; }
  .colophon { grid-area: foot; }
  .rung { grid-template-columns: 34px minmax(0, 1fr) 190px 120px; padding: 9px 14px; }
  .rung-bar { height: 20px; }
  .rung-amt { font-size: 18px; }
  .fn-v { font-size: 38px; }
  .feedlist { max-height: 340px; overflow-y: auto; }
  .cp-addr { font-size: 14.5px; }
}