@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap");

:root {
  color-scheme: light;
  --bg: #f7f6f2;
  --paper: #fffefa;
  --ink: #111111;
  --muted: #5f5f5f;
  --quiet: #8a8a8a;
  --line: #d8d5cc;
  --line-strong: #111111;
  --soft: #f1efe8;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
}

body {
  margin: 0;
  min-height: 100vh;
  overflow: hidden;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.deck {
  position: relative;
  width: 100%;
  height: 100vh;
}

.slide {
  position: absolute;
  inset: 24px 24px 78px;
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 24px;
  padding: clamp(34px, 5vw, 68px);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--paper);
}

.slide.active {
  display: flex;
  animation: enter 180ms ease-out;
}

@keyframes enter {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.cover {
  justify-content: center;
}

.eyebrow {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0;
}

h1,
h2 {
  margin: 0;
  max-width: 1040px;
  color: var(--ink);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(46px, 7vw, 96px);
}

h2 {
  font-size: clamp(36px, 5vw, 66px);
}

.lead {
  margin: 0;
  max-width: 930px;
  color: var(--muted);
  font-size: clamp(20px, 2.1vw, 29px);
  line-height: 1.4;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}

.meta span {
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--soft);
  color: var(--ink);
  font-size: 15px;
  font-weight: 600;
}

.toc-slide {
  justify-content: flex-start;
}

.toc-slide h2 {
  font-size: clamp(34px, 4.4vw, 58px);
}

.toc-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  width: min(100%, 1080px);
}

.toc-grid a {
  display: grid;
  grid-template-columns: 48px 1fr;
  grid-template-areas:
    "num title"
    "num copy";
  column-gap: 14px;
  row-gap: 3px;
  min-height: 102px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: inherit;
  text-decoration: none;
}

.toc-grid a:hover {
  border-color: var(--line-strong);
}

.toc-grid span,
.timeline span {
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--ink);
  font-weight: 800;
}

.toc-grid span {
  grid-area: num;
  width: 42px;
  height: 42px;
  font-size: 14px;
}

.toc-grid strong {
  grid-area: title;
  color: var(--ink);
  font-size: clamp(19px, 1.7vw, 25px);
  font-weight: 800;
}

.env-chip {
  display: inline-grid;
  place-items: center;
  min-width: 38px;
  height: 22px;
  margin-left: 8px;
  padding: 0 8px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--ink);
  font-size: 11px;
  font-style: normal;
  font-weight: 800;
  line-height: 1;
  vertical-align: middle;
}

.title-chip {
  position: relative;
  top: -0.18em;
  height: 28px;
  min-width: 48px;
  font-size: 12px;
}

.toc-grid p {
  grid-area: copy;
  margin: 0;
  color: var(--muted);
  font-size: clamp(15px, 1.25vw, 18px);
  line-height: 1.35;
}

.grid {
  display: grid;
  gap: 14px;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

article {
  min-height: 142px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

article strong {
  display: block;
  margin-bottom: 10px;
  color: var(--ink);
  font-size: clamp(20px, 1.8vw, 26px);
  font-weight: 800;
}

article p,
.note,
.timeline p,
.checklist,
.split-list,
.numbered {
  color: var(--muted);
  font-size: clamp(18px, 1.65vw, 23px);
  line-height: 1.42;
}

article p,
.timeline p {
  margin: 0;
}

.checklist,
.split-list,
.numbered {
  display: grid;
  gap: 16px;
  margin: 0;
  padding-left: 1.2em;
}

.checklist li::marker,
.split-list li::marker,
.numbered li::marker {
  color: var(--ink);
  font-weight: 800;
}

.compact article {
  min-height: 118px;
}

.stat-card {
  min-height: 154px;
}

.stat-card strong {
  margin-bottom: 8px;
  font-size: clamp(38px, 4.8vw, 64px);
  line-height: 0.95;
}

.stat-card p {
  font-size: clamp(16px, 1.35vw, 20px);
}

.note {
  max-width: 980px;
  margin: 0;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
  color: var(--ink);
}

.timeline {
  display: grid;
  gap: 12px;
  max-width: 1040px;
}

.timeline div {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 16px;
  align-items: start;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.timeline span {
  width: 40px;
  height: 40px;
  font-size: 14px;
}

.evidence-slide {
  justify-content: flex-start;
  gap: 16px;
}

.evidence-slide h2 {
  font-size: clamp(32px, 4vw, 54px);
}

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  width: min(100%, 1120px);
}

.evidence-grid.wide {
  width: min(100%, 1180px);
}

.evidence-single {
  width: min(100%, 960px);
}

.evidence-single.wide {
  width: min(100%, 1240px);
}

figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

figure img {
  display: block;
  width: 100%;
  aspect-ratio: 2.25 / 1;
  object-fit: cover;
  object-position: top left;
  border-bottom: 1px solid var(--line);
}

.evidence-single figure img {
  height: auto;
  aspect-ratio: auto;
  object-fit: contain;
  background: transparent;
}

.proof-large img {
  object-position: top left;
}

figure.proof-fit img,
figure.screen img {
  height: min(55vh, 560px);
  aspect-ratio: auto;
  object-fit: contain;
  object-position: top center;
  background: #f8f9fb;
}

figure.screen img {
  height: min(62vh, 650px);
}

figure.proof-narrow {
  width: min(100%, 960px);
}

figure.proof-table {
  width: min(100%, 1040px);
}

figure.proof-table img {
  height: auto;
  aspect-ratio: auto;
  object-fit: contain;
  object-position: top left;
  background: #f8f9fb;
}

.evidence-single figure.tall-proof {
  width: min(100%, 720px);
}

.evidence-single figure.wallet-proof {
  width: min(100%, 840px);
}

.evidence-single figure.wallet-proof img {
  height: min(60vh, 560px);
  aspect-ratio: auto;
  object-fit: cover;
  object-position: left top;
}

figcaption {
  padding: 10px 14px;
  color: var(--ink);
  font-size: clamp(15px, 1.2vw, 18px);
  font-weight: 800;
}

.controls {
  position: fixed;
  left: 24px;
  right: 24px;
  bottom: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

button {
  min-width: 110px;
  height: 44px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

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

button:disabled {
  opacity: 0.45;
  cursor: default;
}

button:disabled:hover {
  background: var(--paper);
  color: var(--ink);
}

.progress {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-weight: 800;
}

@media (max-width: 920px) {
  body {
    overflow: auto;
    overflow-x: hidden;
  }

  .deck {
    min-height: 100vh;
    height: auto;
  }

  .slide {
    position: relative;
    inset: auto;
    min-height: calc(100vh - 92px);
    margin: 16px 16px 74px;
    padding: 28px;
  }

  .grid.two,
  .grid.three,
  .grid.four,
  .toc-grid,
  .evidence-grid {
    grid-template-columns: 1fr;
  }

  .toc-grid a,
  article {
    min-height: auto;
  }

  .controls {
    left: 16px;
    right: 16px;
    bottom: 14px;
  }

  figure.proof-fit img,
  figure.screen img {
    height: auto;
  }

  button {
    min-width: 86px;
  }
}

/* --- weekly deck: dense, non-clipping content slides --- */
.slide.content { justify-content: flex-start; overflow-y: auto; gap: 14px; }
.slide.content h2 { font-size: clamp(24px, 3vw, 40px); }
.slide.content .grid { gap: 10px; }
.slide.content article { min-height: 0; padding: 14px 16px; }
.slide.content article strong { font-size: clamp(16px, 1.4vw, 20px); margin-bottom: 5px; }
.slide.content article p { font-size: clamp(13px, 1.12vw, 16px); line-height: 1.33; }