:root {
  /* Compliance vocabulary: IBM Plex Mono** from Google Fonts; Intersection Observer or CSS scroll-linked classes for sequential slide-reveal moments. */
  --asphalt: #16110F;
  --orange: #FF5A1F;
  --gold: #F2A900;
  --concrete: #D8B98C;
  --coral: #FF7A66;
  --teal: #18D8C8;
  --bone: #FFF1DA;
  --display: 'Bungee', cursive;
  --tech: 'Chakra Petch', sans-serif;
  --mono: 'IBM Plex Mono', monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--asphalt);
  color: var(--bone);
  font-family: var(--mono);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 18% 28%, rgba(255, 90, 31, .21), transparent 28%),
    radial-gradient(circle at 78% 10%, rgba(242, 169, 0, .16), transparent 24%),
    linear-gradient(115deg, rgba(216,185,140,.05), transparent 35%, rgba(24,216,200,.04));
  pointer-events: none;
  z-index: -3;
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 50;
  opacity: .34;
  mix-blend-mode: overlay;
  background-image:
    radial-gradient(circle, rgba(255,241,218,.32) 1px, transparent 1.4px),
    repeating-linear-gradient(12deg, transparent 0 8px, rgba(255,241,218,.035) 9px 10px);
  background-size: 17px 17px, 31px 31px;
}

.cursor-flare {
  position: fixed;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(24,216,200,.18), rgba(255,90,31,.11) 35%, transparent 68%);
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 3;
  opacity: .75;
}

.wall-nav {
  position: fixed;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 40;
  display: grid;
  gap: 10px;
  font: 500 11px var(--mono);
}

.wall-nav a {
  color: var(--bone);
  text-decoration: none;
  background: rgba(22,17,15,.74);
  border: 1px solid rgba(216,185,140,.42);
  padding: 7px 10px;
  box-shadow: -4px 4px 0 rgba(255,90,31,.58);
}

.chapter {
  position: relative;
  min-height: 100vh;
  isolation: isolate;
}

.first-wall {
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(255,241,218,.045) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255,241,218,.035) 1px, transparent 1px),
    var(--asphalt);
  background-size: 62px 62px;
}

.diagnostics span {
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: 34px;
  height: 12px;
  border-top: 2px solid var(--teal);
  border-left: 2px solid var(--teal);
  filter: drop-shadow(0 0 9px var(--teal));
  animation: tickBlink 2.7s infinite steps(2);
}

.shutter {
  position: absolute;
  inset: 0;
  z-index: 5;
  transform: translateX(0);
  animation: scrape 1.45s cubic-bezier(.77,0,.18,1) forwards;
}

.shutter-a { background: var(--orange); clip-path: polygon(0 0, 72% 0, 58% 100%, 0 100%); }
.shutter-b { background: var(--gold); clip-path: polygon(28% 0, 100% 0, 100% 100%, 43% 100%); animation-delay: .18s; }

.wordmark {
  position: relative;
  z-index: 2;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(4.5rem, 17vw, 18rem);
  line-height: .82;
  letter-spacing: -.08em;
  color: var(--orange);
  text-shadow: 8px 8px 0 var(--gold), -5px -3px 0 rgba(24,216,200,.5), 0 0 58px rgba(255,90,31,.48);
  clip-path: polygon(0 7%, 100% 0, 97% 89%, 4% 100%);
}

.wordmark::after {
  content: attr(data-text);
  position: absolute;
  left: .035em;
  top: .055em;
  color: transparent;
  -webkit-text-stroke: 2px var(--bone);
  opacity: .44;
}

.hero-note {
  position: absolute;
  bottom: 13vh;
  left: 8vw;
  max-width: 520px;
  padding: 14px 18px;
  background: rgba(22,17,15,.82);
  border-left: 7px solid var(--teal);
  color: var(--bone);
  font-size: 13px;
  text-transform: uppercase;
}

.hero-stickers {
  position: absolute;
  top: 13vh;
  left: 8vw;
  z-index: 7;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-stickers span, .stamp {
  font: 700 12px var(--tech);
  color: var(--asphalt);
  background: var(--concrete);
  padding: 8px 12px;
  transform: rotate(-2deg);
  box-shadow: 4px 4px 0 var(--orange);
}

.edge-code {
  position: absolute;
  font: 500 11px var(--mono);
  color: var(--teal);
  letter-spacing: .18em;
  writing-mode: vertical-rl;
}
.edge-code.left { left: 18px; bottom: 12vh; }
.edge-code.right { right: 18px; top: 10vh; }

.spray-circuit {
  position: absolute;
  fill: none;
  stroke: var(--teal);
  stroke-width: 5;
  stroke-linecap: round;
  filter: drop-shadow(0 0 13px rgba(24,216,200,.8));
}
.spray-circuit circle { fill: var(--teal); stroke: none; }
.hero-circuit { width: 70vw; bottom: 4vh; right: -6vw; opacity: .72; }

.signal-grid {
  padding: 11vh 7vw 15vh;
  background: linear-gradient(180deg, var(--asphalt), #241611 45%, var(--asphalt));
}

.section-head { max-width: 880px; margin-bottom: 34px; }
.section-head p { color: var(--teal); letter-spacing: .2em; font-size: 12px; }
.section-head h2, .underlayer h2, .emblem h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2.5rem, 7vw, 7rem);
  line-height: .92;
  color: var(--bone);
  text-shadow: 5px 5px 0 var(--orange);
}

.grid-wall {
  display: grid;
  grid-template-columns: repeat(6, minmax(120px, 1fr));
  grid-auto-rows: 145px;
  gap: 18px;
  align-items: stretch;
}

.tile {
  position: relative;
  overflow: hidden;
  min-height: 145px;
  background: rgba(255,241,218,.08);
  border: 1px solid rgba(255,241,218,.18);
  box-shadow: 10px 12px 0 rgba(0,0,0,.28), inset 0 0 30px rgba(0,0,0,.25);
  transform: rotate(var(--rot, -1deg));
}
.tile:nth-child(even) { --rot: 1.2deg; }
.tile.wide { grid-column: span 3; grid-row: span 2; }
.tile.tall { grid-column: span 2; grid-row: span 3; }
.tile.square { grid-column: span 2; grid-row: span 2; }
.tile.label-only { grid-column: span 1; grid-row: span 2; }

.front, .under {
  position: absolute;
  inset: 0;
  padding: 20px;
}

.front {
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform .62s cubic-bezier(.7,0,.17,1), clip-path .62s;
  clip-path: polygon(0 0, 100% 4%, 96% 100%, 3% 95%);
}

.tile:hover .front, .tile.is-open .front { transform: translateX(calc(var(--dir) * 72%)) rotate(2deg); clip-path: polygon(6% 0, 100% 0, 88% 100%, 0 96%); }
.tile.hot .front { background: linear-gradient(135deg, var(--orange), #34150d); }
.tile.paper .front { background: linear-gradient(135deg, var(--concrete), #74593a); color: var(--asphalt); }
.tile.gold .front { background: linear-gradient(135deg, var(--gold), #4a2a04); }
.tile.teal .front { background: linear-gradient(135deg, var(--teal), #103631); color: var(--asphalt); }

.front::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 26% 22%, rgba(255,241,218,.35), transparent 3px), radial-gradient(circle at 70% 68%, rgba(22,17,15,.34), transparent 4px);
  background-size: 28px 28px;
  mix-blend-mode: multiply;
}

.num { font: 700 12px var(--tech); letter-spacing: .24em; }
.tile h3 { position: relative; margin: 0; font: 700 clamp(1.35rem, 2.8vw, 3rem) var(--tech); text-transform: uppercase; }
.tile p { position: relative; margin: 0; font: 500 12px var(--mono); text-transform: uppercase; }
.under {
  display: grid;
  place-items: center;
  background:
    linear-gradient(90deg, rgba(24,216,200,.28) 1px, transparent 1px),
    linear-gradient(0deg, rgba(24,216,200,.18) 1px, transparent 1px),
    #120d0b;
  background-size: 24px 24px;
  color: var(--bone);
  font: 500 13px/1.55 var(--mono);
  text-align: center;
}

.underlayer {
  padding: 10vh 7vw;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 34px;
  align-items: center;
  overflow: hidden;
}

.poster-stack { position: relative; min-height: 620px; }
.ripped-poster {
  position: absolute;
  padding: 34px;
  background: var(--concrete);
  color: var(--asphalt);
  clip-path: polygon(1% 6%, 99% 0, 94% 22%, 100% 45%, 94% 99%, 9% 95%, 0 78%, 5% 43%);
  box-shadow: 18px 24px 0 rgba(0,0,0,.38), 0 0 80px rgba(255,90,31,.22);
}
.main-poster { width: min(760px, 78vw); left: 3vw; top: 8vh; z-index: 2; }
.code-poster { right: 4vw; bottom: 4vh; width: min(500px, 58vw); background: #241611; color: var(--teal); transform: rotate(4deg); }
.ripped-poster p { font: 500 17px/1.65 var(--mono); max-width: 680px; }
.code-poster pre { margin: 0; font: 500 14px/1.75 var(--mono); white-space: pre-wrap; }

.under-traces { position: absolute; inset: 0; width: 100%; height: 100%; fill: none; stroke: var(--teal); stroke-width: 4; stroke-dasharray: 900; stroke-dashoffset: 900; filter: drop-shadow(0 0 12px var(--teal)); }
.under-traces circle { fill: var(--teal); stroke: none; }
.is-visible .under-traces path { animation: drawTrace 1.9s ease forwards; }

.manifesto-scraps { display: grid; gap: 22px; }
.manifesto-scraps p {
  margin: 0;
  padding: 16px;
  background: var(--orange);
  color: var(--asphalt);
  font: 700 18px var(--tech);
  transform: rotate(3deg);
  box-shadow: 7px 7px 0 var(--gold);
}
.manifesto-scraps p:nth-child(2) { transform: rotate(-2deg); background: var(--bone); }
.manifesto-scraps p:nth-child(3) { transform: rotate(1deg); background: var(--teal); }

.launch-alley {
  display: grid;
  place-items: center;
  overflow: hidden;
  background: radial-gradient(circle at 50% 48%, rgba(255,90,31,.42), transparent 32%), linear-gradient(180deg, #24110b, var(--asphalt) 72%);
  perspective: 900px;
}
.perspective-wall { position: absolute; inset: 12vh 6vw; transform: rotateX(57deg) translateY(12vh); transform-style: preserve-3d; }
.collapse-tile { position: absolute; background: rgba(216,185,140,.18); border: 1px solid rgba(255,241,218,.2); box-shadow: 0 0 36px rgba(255,90,31,.26); animation: collapse 5s ease-in-out infinite alternate; }
.c1 { width: 28%; height: 30%; left: 7%; top: 10%; }.c2 { width: 18%; height: 46%; left: 41%; top: 0; animation-delay: .4s; }.c3 { width: 32%; height: 22%; right: 5%; top: 20%; animation-delay: .8s; }.c4 { width: 26%; height: 30%; left: 18%; bottom: 10%; animation-delay: 1.2s; }.c5 { width: 36%; height: 24%; right: 16%; bottom: 5%; animation-delay: 1.6s; }

.emblem { position: relative; z-index: 3; text-align: center; filter: drop-shadow(0 0 45px rgba(255,90,31,.55)); }
.emblem svg { width: min(560px, 74vw); overflow: visible; }
.emblem-stroke { fill: none; stroke: var(--orange); stroke-width: 32; stroke-linecap: round; stroke-linejoin: round; }
.emblem-trace { fill: none; stroke: var(--teal); stroke-width: 7; stroke-linecap: square; }
.emblem circle { fill: var(--gold); }
.emblem h2 { color: var(--orange); text-shadow: 5px 5px 0 var(--gold), 0 0 40px var(--orange); }
.emblem p, .final-code { font: 500 13px var(--mono); color: var(--bone); letter-spacing: .12em; text-transform: uppercase; }
.final-code { position: absolute; bottom: 28px; left: 7vw; color: var(--teal); }

.reveal-panel { transform: translateX(-12vw); opacity: 0; clip-path: inset(0 100% 0 0); transition: transform .8s cubic-bezier(.7,0,.15,1), opacity .6s, clip-path .8s cubic-bezier(.7,0,.15,1); }
.reveal-panel.is-visible { transform: translateX(0); opacity: 1; clip-path: inset(0 0 0 0); }
.tile { opacity: 0; transform: translateY(38px) rotate(var(--rot, -1deg)); transition: opacity .55s, transform .7s cubic-bezier(.7,0,.15,1); }
.tile.is-visible { opacity: 1; transform: translateY(0) rotate(var(--rot, -1deg)); }

@keyframes scrape { to { transform: translateX(112%); } }
@keyframes tickBlink { 50% { opacity: .25; } }
@keyframes drawTrace { to { stroke-dashoffset: 0; } }
@keyframes collapse { to { transform: translateZ(90px) scale(.55); opacity: .2; } }

@media (max-width: 880px) {
  .wall-nav { display: none; }
  .grid-wall { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 150px; }
  .tile.wide, .tile.tall, .tile.square, .tile.label-only { grid-column: span 2; grid-row: span 2; }
  .underlayer { grid-template-columns: 1fr; }
  .manifesto-scraps { margin-top: 24px; }
  .main-poster, .code-poster { position: relative; width: 100%; left: auto; right: auto; top: auto; bottom: auto; margin-bottom: 22px; }
  .poster-stack { min-height: auto; }
  .cursor-flare { display: none; }
}