:root {
  --paper: #f2efe6;
  --paper-deep: #e7e1d2;
  --ink: #171714;
  --muted: #6f6c63;
  --signal: #ff5a36;
  --blue: #1c49d8;
  --line: rgba(23, 23, 20, 0.22);
  --display: "Iowan Old Style", "Baskerville", "Palatino Linotype", serif;
  --sans: "Avenir Next", "Helvetica Neue", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-snap-type: y mandatory;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--ink);
  font-family: var(--sans);
  overflow-x: hidden;
}

button,
a {
  color: inherit;
  font: inherit;
}

.deck-chrome,
.deck-nav {
  position: fixed;
  z-index: 20;
  color: var(--paper);
}

.deck-chrome {
  inset: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  pointer-events: none;
  mix-blend-mode: difference;
}

.brand {
  display: flex;
  gap: 10px;
  align-items: center;
  color: inherit;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-decoration: none;
  text-transform: uppercase;
  pointer-events: auto;
}

.brand img {
  filter: grayscale(1) brightness(4);
}

.counter {
  margin: 0;
  font-family: ui-monospace, "SFMono-Regular", monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
}

.deck {
  background: var(--paper);
}

.slide {
  position: relative;
  min-height: 100svh;
  padding: clamp(76px, 8vw, 120px) clamp(28px, 7vw, 112px);
  overflow: hidden;
  scroll-snap-align: start;
  isolation: isolate;
}

.slide::after {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 28%;
  height: 7px;
  background: var(--signal);
  content: "";
}

.slide-number {
  position: absolute;
  top: clamp(78px, 8vw, 116px);
  right: clamp(28px, 7vw, 112px);
  color: var(--muted);
  font-family: ui-monospace, "SFMono-Regular", monospace;
  font-size: 12px;
  letter-spacing: 0.14em;
}

.eyebrow {
  margin: 0 0 24px;
  color: var(--signal);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  text-wrap: balance;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--display);
  font-weight: 500;
}

h1 {
  max-width: 10.5ch;
  font-size: clamp(56px, 8.4vw, 128px);
  letter-spacing: -0.065em;
  line-height: 0.86;
}

h2 {
  max-width: 14ch;
  font-size: clamp(44px, 6.4vw, 92px);
  letter-spacing: -0.055em;
  line-height: 0.92;
}

.slide-cover {
  display: grid;
  align-items: center;
  background: var(--paper);
}

.cover-copy {
  position: relative;
  z-index: 2;
}

.lede {
  max-width: 530px;
  margin: 32px 0 0;
  color: var(--muted);
  font-size: clamp(16px, 1.6vw, 24px);
  line-height: 1.5;
}

.cover-mark {
  position: absolute;
  right: -5vw;
  bottom: -7vw;
  width: min(34vw, 480px);
  height: auto;
  opacity: 0.95;
  transform: rotate(12deg);
}

.footnote,
.source-note,
.decision-owner {
  position: absolute;
  bottom: 32px;
  left: clamp(28px, 7vw, 112px);
  margin: 0;
  color: var(--muted);
  font-family: ui-monospace, "SFMono-Regular", monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: clamp(48px, 7vw, 90px);
  border: 1px solid var(--ink);
  background: var(--ink);
}

.metric-card {
  min-height: 250px;
  padding: clamp(24px, 3vw, 42px);
  background: var(--paper);
}

.metric-card strong {
  display: block;
  font-family: var(--display);
  font-size: clamp(58px, 7vw, 104px);
  font-weight: 500;
  letter-spacing: -0.07em;
  line-height: 0.9;
}

.metric-card span {
  display: block;
  max-width: 20ch;
  margin-top: 46px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.accent-card {
  background: var(--signal);
}

.accent-card span {
  color: rgba(23, 23, 20, 0.72);
}

.slide-signal {
  background: var(--paper-deep);
}

.signal-grid {
  position: absolute;
  inset: 0 0 0 auto;
  z-index: -1;
  width: 65%;
  height: 100%;
  object-fit: cover;
  opacity: 0.34;
}

.chart {
  display: flex;
  align-items: end;
  gap: clamp(14px, 2vw, 28px);
  width: min(760px, 72vw);
  height: 290px;
  margin-top: 55px;
  padding: 20px 20px 0;
  border-bottom: 1px solid var(--ink);
}

.bar {
  position: relative;
  width: 25%;
  height: var(--height);
  min-height: 140px;
  background: var(--blue);
}

.bar.hot {
  background: var(--signal);
}

.bar span,
.bar b {
  position: absolute;
  left: 0;
  font-size: 11px;
}

.bar span {
  bottom: -29px;
  color: var(--muted);
}

.bar b {
  top: -28px;
  font-family: ui-monospace, "SFMono-Regular", monospace;
}

.chart-baseline {
  display: flex;
  gap: 12px;
  align-items: center;
  width: min(760px, 72vw);
  margin-top: 44px;
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.chart-baseline::before {
  width: 42px;
  height: 2px;
  background: var(--ink);
  content: "";
}

.route-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(16px, 2vw, 30px);
  margin-top: clamp(44px, 6vw, 76px);
}

.route {
  position: relative;
  min-height: 300px;
  padding: clamp(26px, 3.5vw, 48px);
  border: 1px solid var(--ink);
  background: var(--paper);
}

.route.selected {
  background: var(--ink);
  color: var(--paper);
}

.route-label {
  margin: 0;
  color: var(--signal);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.route h3 {
  margin-top: 20px;
  font-size: clamp(32px, 4vw, 56px);
  letter-spacing: -0.045em;
}

.route ul {
  display: grid;
  gap: 12px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.route li {
  padding-top: 12px;
  border-top: 1px solid currentColor;
  font-size: 13px;
  line-height: 1.45;
  opacity: 0.76;
}

.recommendation {
  position: absolute;
  top: -14px;
  right: 20px;
  padding: 7px 11px;
  background: var(--signal);
  color: var(--ink);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin: clamp(46px, 7vw, 90px) 0 0;
  padding: 0;
  border-top: 1px solid var(--ink);
  list-style: none;
}

.timeline li {
  position: relative;
  min-height: 250px;
  padding: 28px 28px 20px 0;
  border-right: 1px solid var(--line);
}

.timeline li::before {
  position: absolute;
  top: -7px;
  left: 0;
  width: 13px;
  height: 13px;
  border: 2px solid var(--paper);
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 1px var(--ink);
  content: "";
}

.timeline span {
  color: var(--muted);
  font-family: ui-monospace, "SFMono-Regular", monospace;
  font-size: 10px;
  text-transform: uppercase;
}

.timeline strong {
  display: block;
  margin-top: 30px;
  font-family: var(--display);
  font-size: clamp(30px, 3vw, 44px);
  font-weight: 500;
}

.timeline p {
  max-width: 20ch;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.slide-decision {
  background: var(--signal);
}

.slide-decision .eyebrow {
  color: var(--ink);
}

.decision-box {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: clamp(50px, 8vw, 100px);
  border: 1px solid var(--ink);
  background: var(--ink);
}

.decision-box p {
  min-height: 125px;
  margin: 0;
  padding: 26px;
  background: var(--signal);
  font-family: var(--display);
  font-size: clamp(20px, 2.4vw, 34px);
  line-height: 1.05;
}

.slide-decision::after {
  background: var(--ink);
}

.decision-owner {
  color: rgba(23, 23, 20, 0.68);
}

.deck-nav {
  right: 24px;
  bottom: 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  mix-blend-mode: difference;
}

.deck-nav button {
  display: grid;
  width: 38px;
  height: 38px;
  padding: 0;
  border: 1px solid currentColor;
  border-radius: 50%;
  background: transparent;
  color: var(--paper);
  cursor: pointer;
  place-items: center;
}

.deck-nav button:hover,
.deck-nav button:focus-visible {
  background: var(--paper);
  color: var(--ink);
}

.progress {
  width: 96px;
  height: 2px;
  background: rgba(242, 239, 230, 0.35);
}

.progress span {
  display: block;
  width: 16.6667%;
  height: 100%;
  background: var(--paper);
  transition: width 220ms ease;
}

@media (max-width: 760px) {
  .deck-chrome {
    padding: 14px 16px;
  }

  .brand span {
    display: none;
  }

  .slide {
    min-height: 100svh;
    padding: 78px 22px 88px;
  }

  .slide-number {
    top: 82px;
    right: 22px;
  }

  .cover-mark {
    right: -24vw;
    bottom: 12vw;
    width: 70vw;
    opacity: 0.24;
  }

  .metric-grid,
  .route-grid,
  .timeline,
  .decision-box {
    grid-template-columns: 1fr;
  }

  .metric-card {
    min-height: 0;
  }

  .metric-card span {
    margin-top: 18px;
  }

  .route {
    min-height: 0;
  }

  .timeline {
    border-top: 0;
  }

  .timeline li {
    min-height: 0;
    padding: 20px 0 24px 26px;
    border-top: 1px solid var(--ink);
    border-right: 0;
  }

  .timeline li::before {
    top: -7px;
  }

  .chart {
    width: 100%;
    height: 230px;
    margin-top: 42px;
  }

  .chart-baseline {
    width: 100%;
  }

  .footnote,
  .source-note,
  .decision-owner {
    left: 22px;
  }

  .deck-nav {
    right: 16px;
  }

  .progress {
    width: 58px;
  }
}

@media print {
  @page {
    size: landscape;
    margin: 0;
  }

  html {
    scroll-snap-type: none;
  }

  body,
  .deck {
    background: white;
  }

  .deck-chrome,
  .deck-nav {
    display: none;
  }

  .slide {
    width: 100vw;
    height: 100vh;
    min-height: 0;
    break-after: page;
    print-color-adjust: exact;
  }
}