:root {
  --paper: #E8DCC8;
  --soot: #1A150F;
  --ochre: #D4862A;
  --tobacco: #C4B49A;
  --ink: #2B2118;
  --concrete: #8B8178;
}

/* Design tokens: Intersection Observer API triggers these reveals at `threshold: 0.15` so elements begin appearing as they enter the lower portion of the viewport. **No element is visible until scrolled to.** The entire experience is a progressive disclosure of content — arguments revealed one at a time Intersection Observer handles all scroll-triggered animations (no `scroll` event listeners for animation triggers Source Serif 4" (Google Fonts */

@keyframes paper-breath {
  from { background-position: 0 0; }
  to { background-position: 18px 12px; }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 16% 9%, rgba(212, 134, 42, 0.16), transparent 23rem),
    radial-gradient(circle at 82% 22%, rgba(139, 129, 120, 0.28), transparent 25rem),
    linear-gradient(115deg, #E8DCC8 0%, #C4B49A 100%);
  color: var(--ink);
  font-family: "Source Serif 4", Georgia, serif;
  font-size: clamp(18px, 1.35vw, 23px);
  line-height: 1.55;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 20;
  background-image:
    repeating-linear-gradient(0deg, rgba(26, 21, 15, 0.025) 0 1px, transparent 1px 5px),
    repeating-linear-gradient(90deg, rgba(26, 21, 15, 0.018) 0 1px, transparent 1px 11px),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160' viewBox='0 0 160 160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.19'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}

.rain-noise {
  position: fixed;
  inset: -20vh -10vw;
  pointer-events: none;
  z-index: 0;
  opacity: 0.2;
  background: repeating-linear-gradient(108deg, transparent 0 20px, rgba(43, 33, 24, 0.12) 21px 22px, transparent 23px 54px);
  transform: translate3d(0, 0, 0);
}

.experience {
  position: relative;
  z-index: 1;
}

.zone {
  position: relative;
  min-height: 100vh;
  padding: clamp(4rem, 8vw, 8rem) clamp(1.3rem, 5vw, 5rem);
  overflow: hidden;
}

.opening-salvo {
  display: grid;
  place-items: center;
  min-height: 112vh;
}

.alley-wall {
  position: absolute;
  inset: 6vh 4vw;
  border: 1px solid rgba(43, 33, 24, 0.18);
  background:
    linear-gradient(90deg, transparent 0 12%, rgba(43, 33, 24, 0.08) 12% 12.4%, transparent 12.4% 49%, rgba(43, 33, 24, 0.06) 49% 49.3%, transparent 49.3%),
    linear-gradient(180deg, rgba(26, 21, 15, 0.08), transparent 40%, rgba(26, 21, 15, 0.12));
  transform: rotate(-0.8deg);
  box-shadow: inset 0 0 0 18px rgba(232, 220, 200, 0.2), 12px 18px 40px rgba(26, 21, 15, 0.14);
}

.title-stack {
  position: relative;
  width: min(1180px, 96vw);
  min-height: 56vh;
}

.kicker,
.section-marker {
  margin: 0 0 1rem;
  color: var(--ochre);
  font-family: "Barlow Condensed", Impact, sans-serif;
  font-size: clamp(1rem, 1.6vw, 1.45rem);
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

.title-fragment {
  position: absolute;
  display: block;
  font-family: "Barlow Condensed", Impact, sans-serif;
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 0.72;
  text-transform: uppercase;
  color: var(--soot);
  text-shadow: 0.035em 0.035em 0 rgba(212, 134, 42, 0.22);
}

.fragment-one {
  top: 4vh;
  left: 0;
  font-size: clamp(6rem, 21vw, 21rem);
  transform: rotate(-3deg);
}

.fragment-two {
  top: 15vh;
  right: 4vw;
  color: var(--ochre);
  font-size: clamp(5.5rem, 17vw, 18rem);
  mix-blend-mode: multiply;
  transform: rotate(5deg);
}

.fragment-three {
  right: 20vw;
  bottom: 0;
  color: transparent;
  -webkit-text-stroke: 2px var(--ink);
  font-size: clamp(4.5rem, 15vw, 16rem);
  transform: rotate(1.5deg);
}

.opening-subtitle {
  position: absolute;
  right: 2vw;
  bottom: -4rem;
  max-width: 34rem;
  padding: 1.1rem 1.35rem;
  background: rgba(232, 220, 200, 0.74);
  border-left: 8px solid var(--ochre);
  box-shadow: 8px 10px 0 rgba(43, 33, 24, 0.12);
  transform: rotate(-1.2deg);
}

.opening-scrap {
  position: absolute;
  left: 7vw;
  bottom: 12vh;
  width: min(21rem, 70vw);
  padding: 1rem 1.2rem;
  background: var(--tobacco);
  font-family: "Caveat", cursive;
  font-size: clamp(1.25rem, 2vw, 2rem);
  transform: rotate(4deg);
  box-shadow: 6px 8px 18px rgba(26, 21, 15, 0.18);
}

.torn-threshold {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 90px;
  background: var(--ink);
  opacity: 0.2;
  clip-path: polygon(0 42%, 5% 58%, 10% 45%, 16% 66%, 22% 39%, 30% 54%, 37% 43%, 44% 62%, 52% 47%, 58% 70%, 66% 44%, 74% 59%, 82% 41%, 90% 63%, 100% 46%, 100% 100%, 0 100%);
}

.evidence-wall,
.counterargument,
.palimpsest {
  max-width: 1440px;
  margin: 0 auto;
}

.crash-heading {
  max-width: 970px;
  color: var(--soot);
  font-family: "Barlow Condensed", Impact, sans-serif;
  font-size: clamp(4rem, 10vw, 11rem);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 0.78;
  text-transform: uppercase;
}

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-auto-rows: minmax(110px, auto);
  gap: clamp(1rem, 2vw, 1.8rem);
  margin-top: 4rem;
}

.paper-block,
.argument-layer,
.coda-card {
  position: relative;
  padding: clamp(1.25rem, 2.5vw, 2.6rem);
  background-color: var(--paper);
  background-image:
    linear-gradient(90deg, rgba(212, 134, 42, 0.08), transparent 40%),
    repeating-linear-gradient(0deg, transparent 0 11px, rgba(43, 33, 24, 0.024) 12px 13px);
  border: 1px solid rgba(43, 33, 24, 0.16);
  box-shadow: 5px 7px 0 rgba(43, 33, 24, 0.1), 14px 18px 34px rgba(26, 21, 15, 0.12);
}

.paper-block::after,
.argument-layer::after,
.coda-card::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 28px;
  background: var(--ink);
  opacity: 0.12;
  clip-path: polygon(0 32%, 8% 75%, 15% 40%, 26% 69%, 36% 45%, 48% 83%, 61% 39%, 74% 67%, 86% 47%, 100% 72%, 100% 100%, 0 100%);
}

.evidence-a { grid-column: 2 / 6; transform: rotate(-2.5deg); }
.evidence-b { grid-column: 6 / 12; grid-row: span 2; margin-top: -3rem; transform: rotate(2deg); background-color: var(--tobacco); }
.evidence-c { grid-column: 1 / 5; transform: rotate(1.2deg); }
.evidence-d { grid-column: 8 / 13; transform: rotate(-1deg); }
.evidence-e { grid-column: 4 / 10; transform: rotate(3deg); background: var(--ink); color: var(--paper); }

.stamp {
  display: inline-block;
  margin-bottom: 1rem;
  padding: 0.25rem 0.65rem;
  border: 3px solid currentColor;
  border-radius: 3px;
  font-family: "Barlow Condensed", Impact, sans-serif;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  opacity: 0.55;
  transform: rotate(-6deg);
}

.stamp-refuted,
.stamp-pending { color: var(--soot); }
.stamp-contested { color: var(--concrete); }
.stamp-approved { color: var(--ochre); }

.pullquote {
  font-family: "Barlow Condensed", Impact, sans-serif;
  font-size: clamp(2rem, 4.2vw, 4.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 0.9;
  text-transform: uppercase;
}

.counterargument {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(15rem, 3fr);
  gap: clamp(2rem, 7vw, 7rem);
  align-items: start;
}

.argument-body {
  max-width: 820px;
}

.argument-line {
  max-width: 680px;
  margin: 0 0 1.7rem clamp(0rem, 8vw, 8rem);
  padding-left: 1.1rem;
  border-left: 3px solid rgba(212, 134, 42, 0.7);
}

.annotation-rail {
  position: sticky;
  top: 16vh;
  display: grid;
  gap: 2rem;
  padding-top: 5rem;
}

.annotation {
  display: block;
  color: var(--soot);
  font-family: "Caveat", cursive;
  font-size: clamp(1.4rem, 2.4vw, 2.5rem);
  line-height: 0.9;
  transform: rotate(-5deg);
}

.annotation:nth-child(even) {
  color: var(--ochre);
  transform: rotate(4deg) translateX(1.5rem);
}

.palimpsest-stack {
  position: relative;
  min-height: 620px;
  margin-top: 5rem;
}

.argument-layer {
  position: absolute;
  width: min(760px, 82vw);
  font-size: clamp(1.2rem, 2vw, 2.1rem);
}

.layer-one { left: 4vw; top: 0; background-color: var(--tobacco); transform: rotate(-2deg); }
.layer-two { right: 3vw; top: 105px; transform: rotate(2.7deg); border-color: rgba(212, 134, 42, 0.6); }
.layer-three { left: 11vw; top: 245px; background-color: #C4B49A; transform: rotate(-0.6deg); }
.layer-four { right: 9vw; top: 390px; opacity: 0.92; transform: rotate(1.4deg); }

.scribble {
  width: 100%;
  height: 160px;
  margin-top: 1rem;
  overflow: visible;
}

.scribble path {
  fill: none;
  stroke: var(--ochre);
  stroke-width: 7;
  stroke-linecap: round;
  opacity: 0.44;
}

.scribble path + path {
  stroke: var(--ink);
  stroke-width: 2;
  opacity: 0.28;
}

.coda {
  display: grid;
  place-items: center;
  min-height: 86vh;
}

.coda-card {
  width: min(900px, 94vw);
  background: var(--soot);
  color: var(--paper);
  transform: rotate(-1.3deg);
}

.coda-card h2 {
  margin-bottom: 1.2rem;
  font-family: "Barlow Condensed", Impact, sans-serif;
  font-size: clamp(4rem, 9vw, 10rem);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 0.78;
  text-transform: uppercase;
}

.coda-card .section-marker {
  color: var(--ochre);
}

.coda-card p:last-child {
  max-width: 620px;
  font-size: clamp(1.35rem, 2.3vw, 2.2rem);
  font-style: italic;
}

.reveal-target {
  opacity: 0;
  transition: opacity 850ms cubic-bezier(0.22, 1, 0.36, 1), transform 850ms cubic-bezier(0.22, 1, 0.36, 1), filter 850ms cubic-bezier(0.22, 1, 0.36, 1);
  filter: blur(3px);
}

.reveal-target.is-visible {
  opacity: 1;
  filter: blur(0);
}

.paper-block.reveal-target,
.argument-layer.reveal-target,
.coda-card.reveal-target,
.opening-scrap.reveal-target,
.opening-subtitle.reveal-target {
  transform: translateY(34px) rotate(var(--tilt, 0deg));
}

.paper-block.is-visible,
.argument-layer.is-visible,
.coda-card.is-visible,
.opening-scrap.is-visible,
.opening-subtitle.is-visible {
  transform: translateY(0) rotate(var(--tilt, 0deg));
}

.evidence-a { --tilt: -2.5deg; }
.evidence-b { --tilt: 2deg; }
.evidence-c { --tilt: 1.2deg; }
.evidence-d { --tilt: -1deg; }
.evidence-e { --tilt: 3deg; }
.opening-scrap { --tilt: 4deg; }
.opening-subtitle { --tilt: -1.2deg; }
.layer-one { --tilt: -2deg; }
.layer-two { --tilt: 2.7deg; }
.layer-three { --tilt: -0.6deg; }
.layer-four { --tilt: 1.4deg; }
.coda-card { --tilt: -1.3deg; }

.title-fragment.reveal-target {
  transform: translateY(44px) rotate(var(--tilt, 0deg));
}

.title-fragment.is-visible {
  transform: translateY(0) rotate(var(--tilt, 0deg));
}

.fragment-one { --tilt: -3deg; }
.fragment-two { --tilt: 5deg; }
.fragment-three { --tilt: 1.5deg; }

@media (max-width: 820px) {
  .zone {
    min-height: auto;
    padding-block: 5rem;
  }

  .opening-salvo {
    min-height: 100vh;
  }

  .title-stack {
    min-height: 42vh;
  }

  .opening-subtitle,
  .opening-scrap {
    position: relative;
    inset: auto;
    margin-top: 2rem;
  }

  .evidence-grid,
  .counterargument {
    display: block;
  }

  .paper-block {
    margin: 0 0 1.4rem;
  }

  .annotation-rail {
    position: relative;
    top: auto;
    padding-top: 1.5rem;
  }

  .palimpsest-stack {
    min-height: auto;
  }

  .argument-layer {
    position: relative;
    inset: auto;
    width: 100%;
    margin-bottom: 1.25rem;
  }
}