@font-face {
  font-family: "League Gothic";
  src: url("../deck/vendor/reveal/dist/theme/fonts/league-gothic/league-gothic.woff") format("woff");
  font-display: swap;
}

@font-face {
  font-family: "Source Sans Pro";
  src: url("../deck/vendor/reveal/dist/theme/fonts/source-sans-pro/source-sans-pro-regular.woff") format("woff");
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Source Sans Pro";
  src: url("../deck/vendor/reveal/dist/theme/fonts/source-sans-pro/source-sans-pro-semibold.woff") format("woff");
  font-weight: 600;
  font-display: swap;
}

:root {
  --canvas: oklch(97.6% 0.007 95);
  --ink: oklch(18% 0.012 255);
  --ink-soft: oklch(38% 0.018 255);
  --blue: oklch(55% 0.245 260);
  --blue-deep: oklch(42% 0.205 260);
  --blue-wash: oklch(93% 0.045 260);
  --green: oklch(63% 0.16 162);
  --green-deep: oklch(43% 0.12 162);
  --green-wash: oklch(94% 0.04 162);
  --coral: oklch(62% 0.215 25);
  --coral-deep: oklch(46% 0.17 25);
  --coral-wash: oklch(94% 0.045 25);
  --line: oklch(86% 0.012 255);
  --line-dark: oklch(72% 0.018 255);
  --display: "League Gothic", "Arial Narrow", sans-serif;
  --sans: "Source Sans Pro", "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  color-scheme: light;
}

html,
body,
.reveal-viewport {
  background: var(--canvas);
}

body {
  overflow: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg, var(--ink) 0 8px, transparent 8px);
  z-index: 3;
}

.reveal,
.reveal * {
  box-sizing: border-box;
}

.reveal {
  font-family: var(--sans);
  font-size: 30px;
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}

.reveal .slides {
  text-align: left;
}

.reveal .slides section {
  height: 100%;
  padding: 54px 58px 46px;
  flex-direction: column;
  justify-content: center;
  align-items: stretch;
}

.reveal h1,
.reveal h2,
.reveal h3,
.reveal p,
.reveal ul,
.reveal ol {
  margin: 0;
}

.reveal h1,
.reveal h2 {
  font-family: var(--display);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 0.94;
  text-wrap: balance;
  text-transform: uppercase;
}

.reveal h1 {
  max-width: 12ch;
  font-size: 4.4em;
}

.reveal h2 {
  max-width: 16ch;
  font-size: 3.2em;
}

.reveal small {
  font-size: 0.62em;
}

.context {
  max-width: 45ch;
  margin-bottom: 18px !important;
  color: var(--blue-deep);
  font-family: var(--mono);
  font-size: 0.47em;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.question {
  margin-top: 26px !important;
  color: var(--ink-soft);
  font-size: 1.12em;
}

.slide-index {
  position: absolute;
  top: 48px;
  right: 58px;
  color: var(--line-dark);
  font-family: var(--display);
  font-size: 1.6em;
  line-height: 1;
}

.deck-brand,
.cue {
  position: fixed;
  z-index: 20;
  bottom: 22px;
  pointer-events: none;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.deck-brand {
  left: 30px;
  color: var(--ink);
}

.cue {
  right: 28px;
  color: var(--ink-soft);
}

.reveal .progress {
  height: 4px;
  color: var(--blue);
  background: var(--line);
}

.reveal .controls {
  color: var(--blue);
}

.slide-title {
  justify-content: flex-start !important;
  padding-top: 82px !important;
}

.slide-title::after {
  content: "";
  position: absolute;
  top: 78px;
  right: 170px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 0 9px var(--coral-wash);
}

.signal {
  display: flex;
  align-items: center;
}

.signal--hero {
  position: absolute;
  right: 58px;
  bottom: 104px;
  width: 61%;
}

.signal__origin,
.signal__status {
  flex: none;
  font-family: var(--mono);
  font-size: 0.48em;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.signal__origin {
  padding: 13px 16px;
  border: 2px solid var(--ink);
}

.signal__line {
  height: 5px;
  flex: 1;
  background: var(--coral);
}

.signal__status {
  padding: 13px 16px;
  border: 2px solid var(--coral);
  color: var(--coral-deep);
}

.split-statement {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 84px;
  align-items: center;
  margin-bottom: 68px;
}

.checks {
  display: flex;
  gap: 12px 28px;
  margin-top: 30px !important;
  padding: 0;
  list-style: none;
  color: var(--ink-soft);
  font-size: 0.7em;
}

.checks span {
  color: var(--green-deep);
  font-weight: 700;
}

.contrast-block {
  padding: 32px 36px;
  border-top: 6px solid var(--coral);
  background: var(--coral-wash);
}

.contrast-block p {
  color: var(--coral-deep);
  font-size: 0.8em;
}

.contrast-block strong {
  display: block;
  margin-top: 5px;
  color: var(--ink);
  font-family: var(--display);
  font-size: 2.25em;
  font-weight: 400;
  line-height: 1;
  text-transform: uppercase;
}

.pipeline {
  display: flex;
  align-items: center;
  width: 100%;
}

.pipeline--compact {
  position: absolute;
  left: 58px;
  right: 58px;
  bottom: 68px;
  width: auto;
}

.node {
  min-width: 142px;
  padding: 12px 14px;
  border: 2px solid var(--line-dark);
  background: var(--canvas);
  text-align: center;
}

.node b,
.node span {
  display: block;
}

.node b {
  font-family: var(--mono);
  font-size: 0.49em;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.node span {
  margin-top: 3px;
  color: var(--ink-soft);
  font-size: 0.4em;
}

.node--done,
.node--active {
  border-color: var(--blue);
}

.node--active {
  background: var(--blue-wash);
  color: var(--blue-deep);
}

.node--success {
  border-color: var(--green);
  background: var(--green-wash);
  color: var(--green-deep);
}

.edge {
  height: 3px;
  flex: 1 1 28px;
  min-width: 22px;
  background: var(--line-dark);
}

.edge--coral {
  background: var(--coral);
}

.edge--blue {
  background: var(--blue);
}

.edge--green {
  background: var(--green);
}

.comparison {
  display: grid;
  grid-template-columns: 1fr 1fr 92px 1.25fr;
  align-items: center;
  gap: 18px;
  margin-top: 55px;
}

.comparison__source,
.comparison__contract {
  min-height: 150px;
  padding: 25px;
  border: 2px solid var(--ink);
}

.comparison__source {
  display: flex;
  align-items: center;
  gap: 18px;
}

.comparison__source p {
  font-size: 0.7em;
  font-weight: 600;
}

.source-mark {
  display: grid;
  width: 64px;
  height: 64px;
  flex: none;
  place-items: center;
  border-radius: 50%;
  font-family: var(--mono);
  font-size: 0.55em;
  font-weight: 700;
}

.source-mark--real {
  background: var(--blue-wash);
  color: var(--blue-deep);
}

.source-mark--fake {
  background: var(--coral-wash);
  color: var(--coral-deep);
}

.comparison__merge {
  color: var(--coral);
  font-family: var(--display);
  font-size: 3em;
  text-align: center;
}

.comparison__contract {
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--ink);
  color: var(--canvas);
}

.comparison__contract span {
  font-family: var(--mono);
  font-size: 0.48em;
  text-transform: uppercase;
}

.comparison__contract strong {
  margin-top: 5px;
  font-family: var(--display);
  font-size: 1.55em;
  font-weight: 400;
  line-height: 1;
  text-transform: uppercase;
}

.punchline,
.decision,
.demo-line {
  color: var(--blue-deep);
  font-size: 0.8em;
  font-weight: 600;
}

.punchline {
  margin-top: 30px !important;
}

.proof-flow {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  align-items: stretch;
  gap: 66px;
  margin-top: 48px;
}

.proof-flow > div {
  position: relative;
  display: flex;
  min-height: 150px;
  flex-direction: column;
  justify-content: center;
  padding: 28px;
  border: 2px solid var(--ink);
}

.proof-flow > div:not(:last-child)::after {
  content: "→";
  position: absolute;
  top: 50%;
  right: -52px;
  color: var(--blue);
  font-size: 1.4em;
  transform: translateY(-50%);
}

.proof-flow__witness {
  background: var(--blue-wash);
  border-color: var(--blue) !important;
}

.proof-flow__artifact {
  border-color: var(--green) !important;
}

.proof-flow b,
.proof-flow small {
  display: block;
}

.proof-flow b {
  margin-top: 8px;
  font-size: 0.9em;
}

.proof-flow small {
  margin-top: 3px;
  color: var(--ink-soft);
}

.protocol {
  color: var(--blue-deep);
  font-family: var(--mono);
  font-size: 0.45em;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.pulse {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--blue);
  animation: pulse 1.8s var(--ease) infinite;
}

.slide-gap h2 {
  max-width: 10ch;
}

.systems {
  position: absolute;
  top: 170px;
  right: 58px;
  display: grid;
  grid-template-columns: 230px 120px 230px;
  align-items: center;
  gap: 22px;
}

.system {
  display: flex;
  min-height: 220px;
  flex-direction: column;
  justify-content: center;
  padding: 28px;
  border: 3px solid var(--blue);
}

.system--compact {
  border-color: var(--ink);
}

.system span {
  color: var(--blue-deep);
  font-family: var(--mono);
  font-size: 0.5em;
  font-weight: 700;
  text-transform: uppercase;
}

.system strong {
  margin-top: 12px;
  font-family: var(--display);
  font-size: 1.7em;
  font-weight: 400;
  line-height: 1;
  text-transform: uppercase;
}

.system-gap {
  text-align: center;
}

.system-gap span,
.system-gap small {
  display: block;
}

.system-gap span {
  color: var(--coral);
  font-family: var(--display);
  font-size: 3em;
}

.system-gap small {
  color: var(--coral-deep);
  font-family: var(--mono);
  font-size: 0.4em;
  font-weight: 700;
  text-transform: uppercase;
}

.decision {
  margin-top: 32px !important;
}

.notary-flow {
  display: grid;
  grid-template-columns: 1fr 1.3fr 1fr;
  align-items: center;
  gap: 34px;
  margin-top: 38px;
}

.artifact-stack,
.assertion {
  min-height: 145px;
  padding: 25px;
  border: 2px solid var(--ink);
}

.artifact-stack b,
.artifact-stack small,
.assertion code {
  display: block;
}

.artifact-stack b {
  margin-top: 12px;
  font-size: 0.8em;
}

.artifact-stack small {
  margin-top: 5px;
  color: var(--ink-soft);
}

.notary-trio {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.notary {
  min-height: 145px;
  padding: 18px 10px;
  border: 2px solid var(--blue);
  background: var(--blue-wash);
  text-align: center;
}

.notary span,
.notary b,
.notary small {
  display: block;
}

.notary span {
  color: var(--blue-deep);
  font-family: var(--display);
  font-size: 1.6em;
}

.notary b {
  font-family: var(--mono);
  font-size: 0.43em;
  text-transform: uppercase;
}

.notary small {
  color: var(--ink-soft);
  font-size: 0.45em;
}

.assertion {
  border-color: var(--green);
  background: var(--green-wash);
}

.assertion code {
  margin-top: 15px;
  color: var(--green-deep);
  font-family: var(--mono);
  font-size: 0.52em;
  line-height: 1.6;
}

.privacy-note {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  margin-top: 28px;
  padding: 17px 20px;
  background: var(--coral-wash);
  color: var(--coral-deep);
  font-size: 0.6em;
}

.privacy-note span {
  color: var(--blue-deep);
}

.threshold {
  display: grid;
  grid-template-columns: 1.5fr 0.8fr 0.55fr;
  align-items: stretch;
  gap: 28px;
  margin-top: 48px;
}

.threshold__keys {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.signature {
  display: flex;
  min-height: 130px;
  flex-direction: column;
  justify-content: center;
  padding: 18px;
  border: 2px solid var(--line-dark);
  text-align: center;
}

.signature--valid {
  border-color: var(--blue);
  background: var(--blue-wash);
}

.signature span {
  font-family: var(--display);
  font-size: 1.6em;
}

.signature b {
  font-family: var(--mono);
  font-size: 0.42em;
  text-transform: uppercase;
}

.threshold__gate,
.threshold__result {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 20px;
  text-align: center;
}

.threshold__gate {
  border: 2px solid var(--ink);
}

.threshold__gate span {
  font-family: var(--display);
  font-size: 2em;
}

.threshold__gate b {
  font-size: 0.58em;
}

.threshold__gate small {
  color: var(--ink-soft);
}

.threshold__result {
  background: var(--green);
  color: var(--canvas);
}

.threshold__result span {
  font-size: 2em;
  line-height: 1;
}

.threshold__result b {
  font-family: var(--mono);
  font-size: 0.46em;
  text-transform: uppercase;
}

.trust-line {
  display: grid;
  grid-template-columns: auto auto auto auto;
  gap: 15px 28px;
  margin-top: 26px;
  padding-top: 22px;
  border-top: 2px solid var(--line);
  font-size: 0.58em;
}

.trust-line b:first-of-type {
  color: var(--green-deep);
}

.trust-line b:last-of-type {
  color: var(--coral-deep);
}

.slide-recap h2 {
  margin-bottom: 42px !important;
}

.recap {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding: 0;
  list-style: none;
}

.recap > div {
  min-height: 180px;
  padding: 20px;
  border-top: 5px solid var(--blue);
}

.recap > div:last-child {
  border-color: var(--green);
  background: var(--green-wash);
}

.recap b,
.recap small {
  display: block;
}

.recap > div::before {
  content: attr(data-step);
  display: block;
  color: var(--blue-deep);
  font-family: var(--mono);
  font-size: 1.35em;
  font-weight: 700;
}

.recap b {
  margin-top: 12px;
  font-size: 0.7em;
}

.recap small {
  margin-top: 8px;
  color: var(--ink-soft);
  line-height: 1.25;
}

.recap-pipeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 22px 0 0;
}

.recap-pipeline i {
  height: 4px;
  background: var(--blue);
}

.recap-pipeline i:last-child {
  background: var(--green);
}

.midnight-checks {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  margin-top: 42px;
}

.midnight-checks > div {
  min-height: 145px;
  padding: 19px;
  border-top: 5px solid var(--blue);
  background: var(--blue-wash);
}

.midnight-checks span,
.midnight-checks b,
.midnight-checks small {
  display: block;
}

.midnight-checks span {
  color: var(--blue-deep);
  font-family: var(--mono);
  font-size: 0.42em;
}

.midnight-checks b {
  margin-top: 18px;
  font-size: 0.64em;
}

.midnight-checks small {
  margin-top: 6px;
  color: var(--ink-soft);
  line-height: 1.2;
}

.boundary-line {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 25px;
}

.boundary-line > div {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 18px;
  padding: 15px 18px;
  border: 2px solid var(--ink);
  font-size: 0.55em;
}

.boundary-line > div:last-child {
  border-color: var(--green);
}

.boundary-line span {
  color: var(--ink-soft);
}

.slide-demo h2 {
  max-width: 12ch;
}

.use-cases {
  position: absolute;
  top: 142px;
  right: 58px;
  width: 44%;
}

.use-cases > div {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 18px;
  padding: 16px 0;
  border-bottom: 2px solid var(--line);
}

.use-cases b {
  color: var(--blue-deep);
  font-family: var(--mono);
  font-size: 0.48em;
  text-transform: uppercase;
}

.use-cases span {
  color: var(--ink-soft);
  font-size: 0.58em;
}

.pipeline--final {
  margin-top: 74px;
}

.pipeline--final .node {
  min-width: 132px;
}

.demo-line {
  margin-top: 35px !important;
  padding: 18px 20px;
  border: 2px solid var(--green);
  background: var(--green-wash);
  color: var(--green-deep);
  text-align: center;
}

@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 oklch(55% 0.245 260 / 0.35);
  }
  50% {
    box-shadow: 0 0 0 12px oklch(55% 0.245 260 / 0);
  }
}

@media (max-width: 700px) {
  .deck-brand,
  .cue {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}