/* Midge replay. A light paper page you read, with dark stages where the mechanism plays (docs/DESIGN_SYSTEM.md).
   Measured references (A1 Gallery): Canopy's receipt slip, Atlassian and Dovetail's mono grid with [01] numbering,
   Summation's verification ticks, Tracebit's step pills. Borders over shadows, radius 12, a 1240px frame. */
:root {
  color-scheme: light;
  --paper: #eef0ec;
  --card: #f7f8f5;
  --slip: #fbfbf8;
  --ink: #15181a;
  --ink-2: #4a5250;
  --ink-3: #5f6764;
  --line: rgba(21, 24, 26, 0.12);
  --lake: #1f5f5b;
  --dusk: #0f1416;
  --dusk-card: #151b1e;
  --dusk-raised: #1d2427;
  --d-1: #e9ece8;
  --d-2: #a6aeab;
  --d-3: #8c9491;
  --d-line: rgba(233, 236, 232, 0.12);
  --d-lake: #7cc4b8;
  --glow: #d9824a;
  --deny: #e0675a;
  --deny-ink: #a63b2f;
  --glow-ink: #8a5222;
  --serif: Newsreader, Georgia, serif;
  --sans: Geist, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --rail: 248px;
  --r: 12px;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 20px;
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition: none !important;
  }
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px / 1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
}
h1,
h2,
h3,
p,
dl,
dd,
ul,
ol,
figure {
  margin: 0;
}
ul,
ol {
  padding: 0;
  list-style: none;
}
a {
  color: var(--lake);
  text-underline-offset: 3px;
}
code,
.mono {
  font-family: var(--mono);
  font-size: 0.88em;
  overflow-wrap: anywhere;
}
.sr {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
:focus-visible {
  outline: 2px solid var(--lake);
  outline-offset: 2px;
}
.stage :focus-visible {
  outline-color: var(--d-lake);
}

/* ---- the shell and the rail ---- */
.shell {
  display: grid;
  grid-template-columns: var(--rail) minmax(0, 1fr);
  max-width: 1240px;
  margin: 0 auto;
}
.rail {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  overflow-y: auto;
  padding: 24px 16px 24px max(16px, env(safe-area-inset-left, 0px));
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.mark {
  font: 400 24px / 1 var(--serif);
  color: var(--ink);
  text-decoration: none;
}
.modes {
  display: grid;
  gap: 8px;
}
.mode {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--line);
  text-decoration: none;
  color: var(--ink);
  font-weight: 500;
}
.mode span {
  font: 400 12px / 1.3 var(--sans);
  color: var(--ink-3);
}
.mode[aria-current="page"] {
  background: var(--dusk);
  color: var(--d-1);
  border-color: var(--dusk);
}
.mode[aria-current="page"] span {
  color: var(--d-lake);
}
.mode.off {
  color: var(--ink-3);
  border-style: dashed;
  cursor: not-allowed;
}
.railnav > summary,
.others > summary {
  cursor: pointer;
  font-size: 12px;
  color: var(--ink-3);
  padding: 4px 2px;
  list-style-position: inside;
}
.railnav > summary {
  font: 400 12px / 1.2 var(--mono);
  margin: 4px 0 8px;
}
.cases {
  display: grid;
  gap: 2px;
}
.case {
  display: block;
  padding: 8px 8px;
  border-radius: 6px;
  color: var(--ink-2);
  text-decoration: none;
  font-size: 14px;
}
.case:hover {
  background: var(--card);
}
.case[aria-current="true"] {
  color: var(--ink);
  font-weight: 500;
  background: var(--card);
}
.stepnav {
  display: grid;
  gap: 1px;
  margin: 4px 0 8px 8px;
  padding-left: 8px;
  border-left: 1px solid var(--line);
}
.stepnav a {
  display: grid;
  grid-template-columns: 22px 1fr 10px;
  gap: 8px;
  align-items: center;
  padding: 4px 8px;
  border-radius: 6px;
  color: var(--ink-2);
  text-decoration: none;
  font-size: 14px;
}
.stepnav a:hover {
  background: var(--card);
}
.stepnav a.off {
  color: var(--ink-3);
}
.stepnav .num {
  font: 400 12px / 1 var(--mono);
  color: var(--ink-3);
}
.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--line);
}
.dot.v-recomputed {
  background: var(--lake);
}
.dot.v-failed {
  background: var(--deny-ink);
}
.dot.v-unavailable {
  background: var(--ink-3);
  opacity: 0.5;
}
.dot.v-reported-not-verified {
  background: var(--glow);
}
.dot.hollow {
  background: none;
  border: 1px dashed var(--ink-3);
}
.others {
  margin-top: 8px;
}
.runnav {
  display: grid;
  gap: 1px;
  margin-top: 4px;
}
.runnav a {
  display: block;
  padding: 4px 8px;
  border-radius: 6px;
  color: var(--ink-2);
  text-decoration: none;
  font-size: 14px;
}
.runnav a:hover,
.runnav a[aria-current="true"] {
  background: var(--card);
  color: var(--ink);
}

main {
  min-width: 0;
  padding: 0 clamp(16px, 4vw, 48px) 0;
}
.intro {
  padding: clamp(28px, 6vw, 64px) 0 24px;
}
.kicker {
  font: 400 12px / 1 var(--mono);
  color: var(--ink-3);
  margin-bottom: 16px;
}
h1 {
  font: 300 clamp(36px, 6vw, 56px) / 1.04 var(--serif);
  letter-spacing: -0.01em;
  text-wrap: balance;
  max-width: 16ch;
}
.lede {
  margin-top: 16px;
  max-width: 62ch;
  color: var(--ink-2);
  font-size: 18px;
}
.legendbox {
  margin-top: 16px;
}
.legendbox > summary {
  cursor: pointer;
  font-size: 14px;
  color: var(--ink-3);
}
.legend {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 12px 24px;
  margin-top: 16px;
}
.legend > div {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-start;
}
.legend dd {
  color: var(--ink-2);
  font-size: 14px;
}
.chip {
  display: inline-block;
  font: 400 12px / 1 var(--mono);
  padding: 4px 8px;
  border-radius: 4px;
  border: 1px solid currentColor;
  white-space: nowrap;
}
.v-recomputed {
  color: var(--lake);
  background: rgba(31, 95, 91, 0.08);
}
.v-failed {
  color: var(--deny-ink);
  background: rgba(166, 59, 47, 0.08);
}
.v-unavailable {
  color: var(--ink-3);
  background: rgba(95, 103, 100, 0.08);
}
.v-reported-not-verified {
  color: var(--glow-ink);
  background: rgba(217, 130, 74, 0.1);
}
.stage .v-recomputed {
  color: var(--d-lake);
  background: rgba(124, 196, 184, 0.1);
}
.stage .v-failed {
  color: var(--deny);
  background: rgba(224, 103, 90, 0.12);
}
.stage .v-unavailable {
  color: var(--d-2);
  background: rgba(166, 174, 171, 0.1);
}
.stage .v-reported-not-verified {
  color: var(--glow);
  background: rgba(217, 130, 74, 0.12);
}

/* ---- the log head, the four beats, the steps ---- */
.loghead {
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 12px 16px 16px;
  background: var(--card);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px 16px;
  align-items: start;
}
.loghead .checks {
  margin-top: 0;
}
.loghead .check .d {
  color: var(--ink-3);
}
.loghead button.act.warn {
  color: var(--glow-ink);
  border-color: var(--glow-ink);
}
.beats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-top: 12px;
}
.beats li > * {
  display: grid;
  gap: 4px;
  height: 100%;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  text-decoration: none;
  font-size: 14px;
}
.beats a:hover {
  background: var(--card);
}
.beats .n {
  font: 400 12px / 1 var(--mono);
  color: var(--lake);
}
.beats .st {
  font: 400 12px / 1.3 var(--mono);
  color: var(--ink-3);
}
.beats li.none > * {
  border-style: dashed;
  color: var(--ink-3);
}
.beats li.none .n {
  color: var(--ink-3);
}
.step {
  padding: 40px 0 8px;
  border-top: 1px solid var(--line);
  margin-top: 32px;
}
.beats + .step {
  border-top: 0;
  margin-top: 4px;
}
.step.off {
  opacity: 0.85;
}
.step.off .pill {
  background: transparent;
  color: var(--ink-3);
  border: 1px dashed var(--ink-3);
}
.step.off h2 {
  color: var(--ink-2);
}
.recorded {
  margin-top: 16px;
  display: grid;
  gap: 8px;
  max-width: 76ch;
}
.recorded .rl {
  font: 400 12px / 1.2 var(--mono);
  color: var(--ink-3);
  margin-bottom: 4px;
}
.stage.tx {
  padding: 16px 20px;
}
.stage.tx h3 a {
  color: var(--d-lake);
}
.also {
  margin-top: 28px;
  color: var(--ink-3);
  font-size: 14px;
}
.sig {
  color: var(--d-1);
  font-size: 12px;
  line-height: 1.5;
}
.slip.sum {
  border-radius: 10px;
}
.say.good {
  color: var(--d-lake);
}
.say.badtxt {
  color: var(--deny);
}
.slip .away {
  margin: 16px 0 8px;
  color: var(--ink-2);
}
.pill {
  display: inline-block;
  font: 400 12px / 1 var(--mono);
  padding: 8px 8px;
  border-radius: 999px;
  background: var(--dusk);
  color: var(--d-lake);
  margin-bottom: 12px;
}
.step h2 {
  font: 400 clamp(24px, 3.2vw, 32px) / 1.15 var(--serif);
  text-wrap: balance;
}
.step .lead,
.runs-sec .lead {
  color: var(--ink-2);
  max-width: 66ch;
  margin: 8px 0 0;
}
.stage {
  background: var(--dusk);
  color: var(--d-1);
  border-radius: var(--r);
  padding: clamp(16px, 3vw, 28px);
  margin-top: 16px;
}
.stage h3 {
  font: 400 19px / 1.25 var(--serif);
  margin-bottom: 4px;
}
.stage .sub {
  color: var(--d-2);
  font-size: 14px;
  max-width: 64ch;
}
.checks {
  display: grid;
  gap: 8px;
  margin-top: 16px;
}
.check .chip,
.row .chip {
  justify-self: start;
}
.check {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 4px 16px;
  align-items: baseline;
  font-size: 14px;
}
.check .d {
  grid-column: 2;
  color: var(--d-2);
  font-size: 14px;
  overflow-wrap: anywhere;
}
.paper .check .d {
  color: var(--ink-3);
}

/* the pay run's people */
.people {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 8px;
  margin-top: 16px;
}
.person {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 16px;
  display: grid;
  gap: 4px;
}
.person b {
  font-weight: 500;
}
.person .k {
  font: 400 12px / 1.3 var(--mono);
  color: var(--ink-3);
}
/* step 3: the review */
.two {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 16px;
  margin-top: 16px;
}
.panel {
  background: var(--dusk-card);
  border: 1px solid var(--d-line);
  border-radius: 10px;
  padding: 16px;
  min-width: 0;
}
.panel h4 {
  font: 400 12px / 1.2 var(--mono);
  color: var(--d-3);
  margin: 0 0 12px;
}
.rules {
  color: var(--d-1);
  font-size: 14px;
  margin-bottom: 8px;
}
.tw {
  overflow-x: auto;
}
table {
  border-collapse: collapse;
  width: 100%;
  font-size: 14px;
}
th,
td {
  text-align: left;
  padding: 8px 8px;
  border-bottom: 1px solid var(--d-line);
  vertical-align: top;
}
th {
  color: var(--d-3);
  font: 400 12px / 1.2 var(--mono);
}
td.n,
th.n {
  text-align: right;
  font-family: var(--mono);
}
tr.hit td {
  color: var(--glow);
}
.finding {
  border: 1px solid var(--glow);
  border-radius: 8px;
  padding: 12px;
  display: grid;
  gap: 8px;
}
.finding .code {
  font: 400 12px / 1.2 var(--mono);
  color: var(--glow);
}
.say {
  margin-top: 8px;
  color: var(--d-2);
  font-size: 14px;
}
.say a {
  color: var(--d-lake);
}
/* step 5: the sub-transaction view */
.cells {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--d-line);
  border-radius: 4px;
  margin-top: 16px;
}
.cell {
  text-align: left;
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  border-right: 1px solid var(--d-line);
  padding: 16px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}
.cell:last-child {
  border-right: 0;
}
.cell .lab {
  font-size: 12px;
  color: var(--d-2);
}
.cell .val {
  font: 400 clamp(20px, 2.6vw, 28px) / 1 var(--mono);
  color: var(--d-1);
}
.cell .tag {
  font: 400 12px / 1.2 var(--mono);
  color: var(--d-3);
}
.cell[aria-expanded="true"] {
  background: var(--dusk-raised);
}
.cell[aria-expanded="true"] .tag {
  color: var(--d-lake);
}
.cell.static {
  cursor: default;
}
.expand {
  border: 1px solid var(--d-line);
  border-top: 0;
  border-radius: 0 0 4px 4px;
  padding: 12px 16px;
  display: grid;
  gap: 8px;
}
.lineitem {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto;
  gap: 8px;
  font: 400 14px / 1.4 var(--mono);
}
.lineitem .ix {
  color: var(--d-3);
}
.equals {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto;
  gap: 8px;
  border-top: 1px solid var(--d-line);
  padding-top: 8px;
  margin-top: 4px;
  font: 400 14px / 1.4 var(--mono);
  align-items: baseline;
}
/* step 6: the receipt slip */
.ppl {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 8px;
}
.ppl button {
  font: inherit;
  font-size: 14px;
  padding: 8px 12px;
  border-radius: 6px;
  border: 1px solid var(--d-line);
  background: var(--dusk-raised);
  color: var(--d-1);
  cursor: pointer;
}
.ppl button[aria-pressed="true"] {
  border-color: var(--d-lake);
  color: var(--d-lake);
}
.receipt {
  display: grid;
  grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
  margin-top: 12px;
}
.slip {
  position: relative;
  background: var(--slip);
  color: var(--ink);
  border-radius: 10px 10px 0 0;
  padding: 16px 16px 24px;
  font-size: 14px;
  --tooth: 10px;
  -webkit-mask:
    linear-gradient(#000 0 0) top / 100% calc(100% - var(--tooth)) no-repeat,
    conic-gradient(from -45deg at bottom, #0000, #000 1deg 89deg, #0000 90deg) bottom / calc(var(--tooth) * 2) var(--tooth) repeat-x;
  mask:
    linear-gradient(#000 0 0) top / 100% calc(100% - var(--tooth)) no-repeat,
    conic-gradient(from -45deg at bottom, #0000, #000 1deg 89deg, #0000 90deg) bottom / calc(var(--tooth) * 2) var(--tooth) repeat-x;
}
.slip .hd {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font: 400 12px / 1.2 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 16px;
}
.slip .who {
  font: 400 22px / 1.1 var(--serif);
  margin-bottom: 12px;
}
.lead-row {
  font-variant-numeric: tabular-nums;
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--mono);
  padding: 4px 0;
}
.lead-row .l {
  color: var(--ink-2);
  font-family: var(--sans);
}
.lead-row .fill {
  flex: 1;
  border-bottom: 1px dotted rgba(21, 24, 26, 0.35);
  transform: translateY(-3px);
  min-width: 12px;
}
.lead-row.total {
  border-top: 1px solid var(--line);
  margin-top: 8px;
  padding-top: 8px;
  font-weight: 500;
}
.slip .meta2 {
  margin-top: 12px;
  display: grid;
  gap: 4px;
  font: 400 12px / 1.4 var(--mono);
  color: var(--ink-3);
  overflow-wrap: anywhere;
}
.slip .stamp {
  position: absolute;
  right: 14px;
  top: 46px;
  font: 500 12px / 1 var(--mono);
  letter-spacing: 0.08em;
  padding: 8px 8px;
  border: 2px solid currentColor;
  border-radius: 4px;
  transform: rotate(-6deg);
}
.slip.ok .stamp {
  color: var(--lake);
}
.slip.bad {
  background: #fbeeec;
}
.slip.bad .stamp {
  color: var(--deny-ink);
}
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
button.act {
  font: inherit;
  font-size: 14px;
  padding: 8px 16px;
  border-radius: 6px;
  border: 1px solid var(--d-lake);
  background: transparent;
  color: var(--d-lake);
  cursor: pointer;
}
button.act:hover {
  background: rgba(124, 196, 184, 0.12);
}
button.act.warn {
  border-color: var(--glow);
  color: var(--glow);
}
button.act.warn:hover {
  background: rgba(217, 130, 74, 0.12);
}
button.act:disabled {
  opacity: 0.5;
  cursor: progress;
}
/* step 7: the auditor pack */
.rows7 {
  display: grid;
  gap: 8px;
  margin-top: 16px;
}
.r7 {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
  padding: 8px 12px;
  border: 1px solid var(--d-line);
  border-radius: 6px;
  font: 400 14px / 1.4 var(--mono);
}
.r7 .ix {
  color: var(--d-3);
}
.r7 .bar {
  height: 12px;
  border-radius: 3px;
  background: repeating-linear-gradient(90deg, #2a3236 0 10px, #252c30 10px 20px);
}
.r7 .why {
  color: var(--d-3);
  font-size: 12px;
}
.r7.open {
  border-color: var(--d-lake);
}

/* ---- a recorded run on its own ---- */
.stepsl {
  margin-top: 16px;
  display: grid;
  gap: 8px;
}
.stepsl details {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
}
.stepsl summary {
  cursor: pointer;
  padding: 12px 16px;
  display: flex;
  gap: 12px;
  align-items: baseline;
}
.stepsl summary .ok {
  color: var(--lake);
  font-weight: 500;
}
.stepsl summary .no {
  color: var(--deny-ink);
  font-weight: 500;
}
.stepsl summary .n {
  margin-left: auto;
  color: var(--ink-3);
  font: 400 12px / 1 var(--mono);
  white-space: nowrap;
}
.stepsl .body {
  padding: 2px 16px 16px;
  display: grid;
  gap: 8px;
}
.a {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 8px;
  color: var(--ink-2);
  font-size: 14px;
}
.a .ok {
  color: var(--lake);
}
.a .no {
  color: var(--deny-ink);
}
.ev {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}
.ev a,
.ev span {
  font: 400 12px / 1.2 var(--mono);
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--paper);
  color: var(--ink-2);
  text-decoration: none;
  overflow-wrap: anywhere;
}
.ev a {
  color: var(--lake);
  border-color: var(--lake);
}

.limits h2 {
  font: 400 clamp(24px, 3.2vw, 32px) / 1.15 var(--serif);
}
.limits {
  padding: 40px 0 32px;
  margin-top: 32px;
  border-top: 1px solid var(--line);
}
.limits ul {
  margin-top: 12px;
}
.limits li {
  color: var(--ink-2);
  max-width: 76ch;
  padding: 8px 0;
}
.foot {
  display: flex;
  gap: 24px;
  padding: 20px 0 40px;
  color: var(--ink-3);
  font-size: 14px;
  border-top: 1px solid var(--line);
}
.nojs {
  padding: 16px 0;
}

/* ---- narrow screens: the rail becomes a top bar ---- */
@media (max-width: 920px) {
  .shell {
    grid-template-columns: minmax(0, 1fr);
  }
  .rail {
    position: sticky;
    top: 0;
    z-index: 5;
    height: auto;
    max-height: 100vh;
    overflow-y: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    background: var(--paper);
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 16px;
    padding: 8px max(16px, env(safe-area-inset-right, 0px)) 8px max(16px, env(safe-area-inset-left, 0px));
  }
  .modes {
    display: contents;
  }
  .mode {
    padding: 8px 8px;
    flex-direction: row;
  }
  .mode span {
    display: none;
  }
  .railnav {
    order: 3;
    flex-basis: 100%;
  }
  .railnav[open] {
    max-height: 60vh;
    overflow-y: auto;
  }
  main {
    padding: 0 max(16px, env(safe-area-inset-right, 0px)) 0 max(16px, env(safe-area-inset-left, 0px));
  }
  .two,
  .receipt,
  .loghead {
    grid-template-columns: minmax(0, 1fr);
  }
  .beats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .cells {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .cell:nth-child(2) {
    border-right: 0;
  }
  .cell:nth-child(-n + 2) {
    border-bottom: 1px solid var(--d-line);
  }
  .check,
  .row {
    grid-template-columns: minmax(0, 1fr);
  }
  .check .d,
  .row .detail {
    grid-column: 1;
  }
}

/* ---- who is in the run, and the glossary ---- */
.cast {
  margin-top: 12px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 16px;
  background: var(--slip);
}
.cast h3 {
  font: 400 18px / 1.2 var(--serif);
  margin-bottom: 12px;
}
.cast-rows {
  display: grid;
  gap: 8px;
}
.cast-row {
  display: grid;
  grid-template-columns: 36px 160px minmax(0, 1.3fr) minmax(0, 1.6fr);
  gap: 4px 16px;
  align-items: baseline;
  font-size: 14px;
}
.cast .role {
  font: 400 12px / 1.4 var(--mono);
  color: var(--lake);
}
.cast .who {
  font-weight: 500;
}
.cast .acct {
  color: var(--ink-2);
  overflow-wrap: anywhere;
  font-size: 12px;
}
.cast a.acct {
  text-decoration-color: var(--line);
}
.cast .does {
  color: var(--ink-2);
}
.cast .cap {
  margin-top: 12px;
  color: var(--ink-3);
  font-size: 14px;
  max-width: 76ch;
}
.words {
  margin: 8px 0 16px;
}
.glossary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px 24px;
  margin-top: 14px;
}
.glossary dt {
  font-weight: 500;
}
.glossary dd {
  color: var(--ink-2);
  font-size: 14px;
}
@media (max-width: 920px) {
  .cast-row {
    grid-template-columns: 36px minmax(0, 1fr);
  }
  .cast .acct,
  .cast .does {
    grid-column: 2;
  }
}

/* ---- Dark, like the landing page (2026-11-14) ----------------------------------------------------------------------------------
   The light tokens take the design system's dark values (docs/DESIGN_SYSTEM.md §3), so both pages sit in the landing page's dark room
   with the same measured contrast. The payslip receipt stays a light paper slip on purpose: it restores the light tokens inside itself.
   The header is the "Who uses it" band panel; steps are bento cards; the rail is narrower. Motion lives in motion.js and is off
   without JavaScript and under reduced motion, where every final frame shows. */
:root {
  color-scheme: dark;
  --paper: #0f1416;
  --card: #151b1e;
  --ink: #e9ece8;
  --ink-2: #a6aeab;
  --ink-3: #8c9491;
  --line: rgba(233, 236, 232, 0.12);
  --lake: #7cc4b8;
  --deny-ink: #e0675a;
  --glow-ink: #d9824a;
  --stage: #0b0f10;
  --rail: 216px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}
.shell {
  max-width: 1320px;
}
.rail {
  padding-right: 12px;
}
.mode {
  background: rgba(21, 27, 30, 0.6);
}
.mode[aria-current="page"] {
  background: rgba(124, 196, 184, 0.08);
  border-color: rgba(124, 196, 184, 0.36);
  color: var(--ink);
}
.railnav > summary,
.others > summary {
  min-height: 24px;
  display: flex;
  align-items: center;
}
.slip {
  --ink: #15181a;
  --ink-2: #4a5250;
  --ink-3: #5f6764;
  --line: rgba(21, 24, 26, 0.12);
  --lake: #1f5f5b;
  --deny-ink: #a63b2f;
  --glow-ink: #8a5222;
  color: var(--ink);
}
.cast {
  background: var(--card);
}
.stage {
  background: var(--stage);
  border: 1px solid var(--line);
}
.pill {
  background: rgba(124, 196, 184, 0.1);
  border: 1px solid rgba(124, 196, 184, 0.24);
  color: var(--lake);
}

/* the header: the landing page's "Who uses it" band panel */
.intro {
  position: relative;
  isolation: isolate;
  overflow: clip;
  margin-top: 24px;
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: clamp(48px, 7vw, 88px) clamp(20px, 4vw, 40px) 32px;
}
.intro::before {
  content: "";
  position: absolute;
  inset: -40px;
  z-index: -2;
  filter: blur(16px);
  pointer-events: none;
  background:
    linear-gradient(180deg, var(--paper) 0%, rgba(15, 20, 22, 0) 30%, rgba(15, 20, 22, 0) 86%, var(--paper) 100%),
    linear-gradient(
      180deg,
      transparent 40%,
      rgba(31, 95, 91, 0.6) 50%,
      rgba(12, 40, 38, 0.5) 56%,
      rgba(217, 130, 74, 0.42) 63%,
      rgba(160, 80, 44, 0.3) 67%,
      rgba(10, 28, 28, 0.65) 72%,
      rgba(124, 196, 184, 0.3) 78%,
      rgba(20, 72, 66, 0.6) 84%,
      transparent 94%
    );
}
.intro::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: repeating-linear-gradient(180deg, rgba(233, 236, 232, 0.035) 0 1px, transparent 1px 5px);
}
@keyframes band-drift {
  from {
    transform: translateX(-3%);
  }
  to {
    transform: translateX(3%);
  }
}
@media (prefers-reduced-motion: no-preference) {
  .intro::before {
    animation: band-drift 40s var(--ease) infinite alternate;
  }
}
.intro .legendbox {
  position: relative;
}

/* the use cases as frosted tiles, the same tiles as "Who uses it" */
.tiles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 32px;
}
.tile {
  background: rgba(15, 20, 22, 0.55);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(233, 236, 232, 0.14);
  border-radius: 16px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 132px;
  color: var(--ink);
  text-decoration: none;
  transition:
    border-color 160ms var(--ease),
    background-color 160ms var(--ease),
    transform 160ms var(--ease),
    opacity 320ms var(--ease);
}
.tile svg {
  fill: none;
  stroke: var(--ink);
  stroke-width: 1.4;
}
.tile .t {
  margin: auto 0 0;
  font-size: 18px;
  font-weight: 500;
}
.tile .s {
  margin: 0;
  font: 400 12px / 1.4 var(--mono);
  color: var(--ink-2);
}
.tile[aria-current="true"] {
  border-color: rgba(124, 196, 184, 0.6);
  background: rgba(15, 20, 22, 0.72);
}
.tile[aria-current="true"] .s {
  color: var(--lake);
}
@media (hover: hover) {
  .tile:hover {
    border-color: rgba(124, 196, 184, 0.4);
    transform: translateY(-1px);
  }
}
@media (max-width: 900px) {
  .tiles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 520px) {
  .tiles {
    gap: 8px;
  }
  .tile {
    padding: 16px;
    min-height: 112px;
    gap: 8px;
  }
  .tile .t {
    font-size: 15px;
  }
}

/* steps as bento cards */
.step,
.beats + .step {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 28px clamp(20px, 3vw, 32px);
  margin-top: 16px;
}
.step.off {
  opacity: 1;
  background: transparent;
  border-style: dashed;
}
.limits {
  border-top-color: var(--line);
}

/* entrances, once, when a card comes into view (motion.js adds .motion and .in) */
@media (prefers-reduced-motion: no-preference) {
  .motion .step,
  .motion .tile {
    transition:
      opacity 320ms var(--ease),
      transform 320ms var(--ease),
      border-color 160ms var(--ease),
      background-color 160ms var(--ease);
    transition-delay: calc(var(--i, 0) * 40ms);
  }
  .motion .step:not(.in),
  .motion .tile:not(.in) {
    opacity: 0;
    transform: translateY(12px);
  }
}

/* ---- The sidebar as a floating panel that folds into an icon rail, after BoardUI's sidebar (2026-11-14) ----------------------
   Above 920 px: a rounded panel with 36 px rows, icons and a teal fill on the current item. rail.js folds it into a 72 px rail of
   icons and step numbers (on its own on laptop widths, or with the toggle); folded labels stay as visually hidden text. */
.rail-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.mark .m1 {
  display: none;
}
.rail-toggle {
  display: none;
}
.ico {
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
}
.mode .lbl {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
@media (min-width: 921px) {
  .shell {
    --rail: 288px;
    grid-template-columns: var(--rail) minmax(0, 1fr);
  }
  .shell.rail-folded {
    --rail: 88px;
  }
  .rail {
    top: 16px;
    height: calc(100vh - 32px);
    margin: 16px 0 16px 16px;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--card);
    gap: 12px;
  }
  .rail-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--ink-2);
    cursor: pointer;
    transition:
      background-color 160ms var(--ease),
      color 160ms var(--ease),
      transform 100ms var(--press, cubic-bezier(0.2, 0, 0, 1));
  }
  .rail-toggle svg {
    fill: none;
    stroke: currentColor;
    stroke-width: 1.4;
  }
  .rail-toggle:hover {
    background: rgba(233, 236, 232, 0.06);
    color: var(--ink);
  }
  .mark {
    padding-left: 4px;
  }
  .mode {
    flex-direction: row;
    align-items: center;
    gap: 12px;
    min-height: 36px;
    padding: 8px 12px;
  }
  .case {
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 36px;
    padding: 8px 12px;
    border-radius: 12px;
    color: var(--ink-2);
    transition:
      background-color 160ms var(--ease),
      color 160ms var(--ease);
  }
  .case:hover {
    background: rgba(233, 236, 232, 0.05);
    color: var(--ink);
  }
  .case[aria-current="true"] {
    background: rgba(124, 196, 184, 0.12);
    color: var(--ink);
  }
  .case[aria-current="true"] .ico {
    color: var(--lake);
  }
  .stepnav a {
    min-height: 32px;
    border-radius: 8px;
  }

  /* folded: an icon rail */
  .rail-folded .rail {
    padding: 12px 8px;
    align-items: center;
  }
  .rail-folded .rail-head {
    flex-direction: column;
  }
  .rail-folded .mark .m1 {
    display: inline;
  }
  .rail-folded .lbl,
  .rail-folded .stepnav a > span:nth-child(2) {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
  .rail-folded .mode,
  .rail-folded .case {
    justify-content: center;
    width: 48px;
    padding: 8px 0;
  }
  .rail-folded .railnav > summary,
  .rail-folded .others {
    display: none;
  }
  .rail-folded .modes,
  .rail-folded .cases {
    justify-items: center;
  }
  .rail-folded .stepnav {
    margin: 4px 0 8px;
    padding-left: 0;
    border-left: 0;
  }
  .rail-folded .stepnav a {
    grid-template-columns: 22px 8px;
    justify-content: center;
    padding: 4px;
  }
}

/* ---- Buttons that wait (after Arc UI and affectUI's buttons) -------------------------------------------------------------------
   A button whose request is running shows a small spinner and aria-busy, and keeps full opacity. Every button presses to 97 %. */
button.act,
.paper-act {
  min-height: 36px;
  border-radius: 8px;
  transition:
    background-color 160ms var(--ease),
    border-color 160ms var(--ease),
    color 160ms var(--ease),
    transform 100ms cubic-bezier(0.2, 0, 0, 1);
}
button:active:not(:disabled) {
  transform: scale(0.97);
}
button[aria-busy="true"] {
  cursor: progress;
}
button[aria-busy="true"]:disabled {
  opacity: 1;
}
button[aria-busy="true"]::before {
  content: "";
  display: inline-block;
  width: 12px;
  height: 12px;
  margin-right: 8px;
  vertical-align: -1px;
  border-radius: 50%;
  border: 1.5px solid currentColor;
  border-right-color: transparent;
  animation: busy-spin 700ms linear infinite;
}
@keyframes busy-spin {
  to {
    transform: rotate(1turn);
  }
}
@media (prefers-reduced-motion: reduce) {
  button[aria-busy="true"]::before {
    animation: none;
    border-right-color: currentColor;
    opacity: 0.6;
  }
  button:active:not(:disabled) {
    transform: none;
  }
}

/* Target size (WCAG 2.5.8): disclosure rows and footer links reach 24 px. */
main summary,
.foot a {
  padding-block: 1px;
}
main summary {
  min-height: 24px;
}
.foot a {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
}

/* Wide screens: each step name fits on one line in the sidebar (2026-11-14; they wrapped to two at 149 px of text). */
@media (min-width: 921px) {
  .stepnav {
    margin-left: 4px;
    padding-left: 6px;
  }
  .stepnav a {
    grid-template-columns: 20px 1fr 8px;
    gap: 6px;
    padding: 4px 6px;
  }
}