/* RunwayLadder landing — a treasurer's account book. No build step: this file ships as is. */

:root {
  --paper: #f6f0e4;
  --paper-2: #efe6d3;
  --ink: #2b1614;
  --oxblood: #781818;
  --gold: #c09030;
  --rule: #d8cbb4;
  --muted: #6e5a52;
  --spine: #781818;
  --spine-ink: #f6f0e4;
  --serif: "Instrument Serif", Georgia, "Times New Roman", serif;
  --sans: ui-sans-serif, system-ui, "Segoe UI", Helvetica, sans-serif;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #1c0f0e;
    --paper-2: #26150f;
    --ink: #efe6d6;
    --oxblood: #c55a4f;
    --gold: #c9a04a;
    --rule: #3a2622;
    --muted: #a8968a;
    --spine: #4a0f0f;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  font-variant-numeric: tabular-nums lining-nums;
}

a {
  color: var(--oxblood);
}

a:hover {
  color: var(--ink);
}

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  left: 16px;
  top: 16px;
  z-index: 2;
  background: var(--paper);
  padding: 8px 12px;
}

.wrap {
  max-width: 1240px;
  margin: 0 auto;
  padding-inline: 40px;
}

.serif {
  font-family: var(--serif);
  font-weight: 400;
}

.muted {
  color: var(--muted);
}

.caps {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* The spine: the only place the logo's field appears. */
.spine {
  background: var(--spine);
  color: var(--spine-ink);
}

.spine a {
  color: var(--spine-ink);
  text-decoration: none;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.spine a:hover {
  color: var(--gold);
}

.spine .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 16px;
  min-height: 72px;
}

.brand {
  gap: 14px;
}

.brand span {
  font-size: 26px;
}

/* Hero */
.hero {
  display: flex;
  flex-wrap: wrap;
  gap: 56px;
  padding-top: 88px;
  padding-bottom: 96px;
  align-items: flex-start;
}

.hero > div {
  flex: 1 1 520px;
  min-width: 0;
}

.hero figure {
  flex: 1 1 440px;
  min-width: 0;
  margin: 0;
}

h1 {
  font-size: 84px;
  line-height: 0.98;
  margin: 0 0 28px;
  letter-spacing: -0.01em;
}

.lead {
  font-size: 20px;
  line-height: 1.55;
  margin: 0 0 36px;
  max-width: 34em;
}

.btn {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0 24px;
  background: #781818;
  color: #f6f0e4;
  text-decoration: none;
  font-size: 16px;
}

.btn:hover {
  background: var(--ink);
  color: var(--paper);
}

.small {
  font-size: 14px;
}

figcaption {
  font-size: 14px;
  margin-top: 14px;
  max-width: 36em;
}

/* The ledger sheet: a margin column behind a double rule, like a ruled account book. */
.sheet {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  border-top: 1px solid var(--rule);
}

.margin {
  padding: 40px 28px 40px 0;
  border-right: 4px double var(--oxblood);
}

.margin .caps {
  margin-top: 14px;
}

.body {
  padding: 40px 0 56px 40px;
  min-width: 0;
}

.num {
  font-size: 64px;
  line-height: 1;
  color: var(--oxblood);
}

h2 {
  font-size: 42px;
  line-height: 1.1;
  margin: 0 0 24px;
  max-width: 22ch;
}

.scroll {
  overflow-x: auto;
}

.led {
  width: 100%;
  border-collapse: collapse;
  min-width: 600px;
}

.hero .led {
  min-width: 420px;
}

.led th {
  text-align: left;
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 10px 14px;
  border-bottom: 1px solid var(--ink);
}

.led td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--rule);
  white-space: nowrap;
}

.led .r {
  text-align: right;
}

.led .cr {
  border-left: 4px double var(--oxblood);
}

.arr {
  box-shadow: inset 0 -2px 0 var(--gold);
}

.note {
  font-family: var(--serif);
  font-size: 21px;
  line-height: 1.35;
  margin: 0 0 18px;
  max-width: 36em;
}

.scroll + .note {
  margin-top: 22px;
}

.led .grp th {
  border-bottom: 1px solid var(--rule);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--oxblood);
  padding-top: 22px;
}

/* A ruled-off total: single rule above, double below — the bookkeeper's sum line. */
.tot {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 48px;
  padding: 18px 14px 20px;
  margin: 28px 0 0;
  border-top: 1px solid var(--ink);
  border-bottom: 4px double var(--ink);
}

.tot p {
  margin: 0;
}

.tot .lbl {
  flex: 1 0 100%;
}

.tot .cell {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.big {
  font-size: 44px;
  line-height: 1;
}

.zero {
  color: var(--oxblood);
}

.after {
  font-size: 15px;
  margin: 14px 0 0;
  max-width: 44em;
}

.steps,
.terms {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--ink);
}

.steps li,
.terms li {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}

.steps li:last-child {
  border-bottom: 4px double var(--ink);
}

.terms li {
  padding: 18px 0;
}

.mark {
  font-family: var(--serif);
  font-size: 30px;
  line-height: 1;
  color: var(--oxblood);
}

.pair {
  margin-top: 28px;
}

.pair p {
  margin: 0 0 24px;
  max-width: 40em;
}

.pair figure {
  margin: 0;
}

.pair img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--rule);
}

.roles {
  border-top: 1px solid var(--ink);
}

.role {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr) minmax(0, 1fr);
  column-gap: 28px;
  padding: 22px 0;
  border-bottom: 1px solid var(--rule);
}

.role.head {
  padding: 10px 0;
  border-bottom: 1px solid var(--ink);
}

.role h3 {
  margin: 0;
  font-size: 28px;
  line-height: 1.1;
}

.role p {
  margin: 0;
}

.status {
  background: var(--paper-2);
}

.status p {
  font-size: 19px;
  margin: 0 0 10px;
}

.status .small {
  font-size: 14px;
  margin: 6px 0 0;
}

.status a.app {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  margin-top: 18px;
}

footer .wrap {
  min-height: 96px;
}

footer .serif {
  font-size: 24px;
}

footer .links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
}

@media (max-width: 760px) {
  .wrap {
    padding-inline: 16px;
  }

  .hero {
    padding-top: 48px;
    padding-bottom: 56px;
    gap: 40px;
  }

  h1 {
    font-size: 52px;
  }

  .lead {
    font-size: 18px;
  }

  .sheet {
    grid-template-columns: 1fr;
  }

  .margin {
    border-right: 0;
    border-bottom: 4px double var(--oxblood);
    padding: 28px 0 16px;
    display: flex;
    align-items: baseline;
    gap: 16px;
  }

  .margin .caps {
    margin-top: 0;
  }

  .num {
    font-size: 44px;
  }

  .body {
    padding: 24px 0 40px;
  }

  h2 {
    font-size: 32px;
  }

  .role {
    grid-template-columns: 1fr;
    row-gap: 8px;
  }

  .role.head {
    display: none;
  }

  .role .cannot::before {
    content: "Cannot: ";
    font-weight: 600;
  }

  .big {
    font-size: 34px;
  }

  .note {
    font-size: 19px;
  }

  .led th,
  .led td {
    padding: 10px 8px;
  }

  .led td {
    font-size: 15px;
  }

  .hero .led {
    min-width: 0;
  }

  .hero .led th:nth-child(4),
  .hero .led td:nth-child(4) {
    display: none;
  }
}

.sr {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}