:root {
  /* Compliance typography phrases: IBM Plex Mono` for tiny production marks; Space Grotesk` for small captions. */
  --cherry: #E9003F;
  --bubblegum: #FF5BB8;
  --cream: #FFF4D6;
  --ink: #16070A;
  --cyan: #00C8F8;
  --lemon: #FFE12B;
  --stem: #34C759;
  --gloss: #FFFFFF;
  --panel-thick: 10px;
  --sticker-radius: 999px;
  --halftone-density: 18px;
  --mis-x: 6px;
  --mis-y: 5px;
}

* { box-sizing: border-box; }

html,
body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  color: var(--ink);
  background: var(--cream);
  font-family: "Space Grotesk", Inter, system-ui, sans-serif;
}

button { font: inherit; color: inherit; }

.paper-grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 20;
  opacity: .24;
  background:
    radial-gradient(circle at 20% 15%, rgba(22,7,10,.18) 0 1px, transparent 1.5px),
    radial-gradient(circle at 70% 45%, rgba(22,7,10,.12) 0 1px, transparent 1.3px),
    linear-gradient(110deg, transparent 0 48%, rgba(255,255,255,.35) 49% 50%, transparent 51%);
  background-size: 23px 23px, 31px 31px, 100% 100%;
  mix-blend-mode: multiply;
}

.print-header {
  position: fixed;
  left: 18px;
  right: 18px;
  top: 14px;
  z-index: 15;
  display: flex;
  align-items: center;
  justify-content: space-between;
  pointer-events: none;
  font: 700 12px/1 "IBM Plex Mono", ui-monospace, monospace;
  letter-spacing: .14em;
}

.reg-mark,
.reg-cross {
  width: 38px;
  height: 38px;
  border: 4px solid var(--ink);
  border-radius: 50%;
  position: relative;
  background: var(--cream);
}

.reg-mark span,
.reg-cross::before,
.reg-cross::after {
  content: "";
  position: absolute;
  background: var(--ink);
}

.reg-mark span:first-child,
.reg-cross::before { width: 4px; height: 50px; left: 13px; top: -10px; }
.reg-mark span:last-child,
.reg-cross::after { height: 4px; width: 50px; top: 13px; left: -10px; }

.ink-tabs { display: flex; gap: 7px; }
.ink-tabs i { width: 24px; height: 24px; border: 3px solid var(--ink); display: block; transform: rotate(-7deg); }
.ink-tabs i:nth-child(1) { background: var(--cherry); }
.ink-tabs i:nth-child(2) { background: var(--cyan); transform: rotate(6deg); }
.ink-tabs i:nth-child(3) { background: var(--lemon); }
.ink-tabs i:nth-child(4) { background: var(--bubblegum); transform: rotate(8deg); }

.strip {
  height: 100vh;
  width: 500vw;
  display: flex;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  scrollbar-width: none;
}
.strip::-webkit-scrollbar { display: none; }

.panel {
  position: relative;
  flex: 0 0 100vw;
  height: 100vh;
  overflow: hidden;
  scroll-snap-align: start;
  border-right: var(--panel-thick) solid var(--ink);
  background: var(--cream);
  isolation: isolate;
}

.panel::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(var(--ink) 0 1.5px, transparent 1.7px);
  background-size: var(--halftone-density) var(--halftone-density);
  opacity: .055;
  transform: translate(var(--mis-x), var(--mis-y));
}

.panel-label {
  position: absolute;
  top: 64px;
  left: 28px;
  z-index: 4;
  padding: 9px 16px;
  border: 4px solid var(--ink);
  border-radius: var(--sticker-radius);
  background: var(--gloss);
  box-shadow: 7px 7px 0 var(--cyan), 12px 12px 0 var(--ink);
  font: 700 13px/1 "IBM Plex Mono", ui-monospace, monospace;
  text-transform: uppercase;
  letter-spacing: .14em;
  transform: rotate(-4deg);
}

.misprint { position: relative; text-shadow: var(--mis-x) var(--mis-y) 0 var(--cyan), calc(var(--mis-x) * -1) 2px 0 var(--bubblegum); }
.misprint::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  color: transparent;
  -webkit-text-stroke: 2px var(--ink);
  transform: translate(-4px, 4px);
  opacity: .55;
  pointer-events: none;
}

.giant-title {
  position: absolute;
  left: -3vw;
  top: 18vh;
  width: 105vw;
  z-index: 2;
  font-family: "Bungee Shade", Impact, fantasy;
  font-size: clamp(58px, 12vw, 184px);
  line-height: .84;
  letter-spacing: -.06em;
  color: var(--cherry);
  transform: rotate(-3deg);
}

.cherry-bubble {
  position: absolute;
  z-index: 6;
  border: 7px solid var(--ink);
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 24%, var(--gloss) 0 10%, transparent 11%),
    radial-gradient(circle at 40% 38%, var(--bubblegum) 0 20%, transparent 21%),
    var(--cherry);
  box-shadow: 12px 12px 0 var(--ink), 20px 20px 0 var(--cyan);
  cursor: pointer;
  transition: transform .32s cubic-bezier(.2,1.6,.35,1), opacity .28s ease;
  animation: breathe 2.8s ease-in-out infinite;
}
.cherry-bubble:hover { transform: scale(1.08) rotate(-3deg); }
.cherry-bubble.popped { opacity: 0; transform: scale(.08) rotate(22deg); pointer-events: none; }
.hero-bubble { width: min(42vw, 480px); height: min(42vw, 480px); right: 7vw; bottom: 10vh; }
.mini-bubble { width: 130px; height: 130px; }
.bubble-a { left: 10vw; bottom: 16vh; }
.bubble-b { right: 15vw; top: 15vh; animation-delay: -.8s; }
.splash-bubble { width: 190px; height: 190px; right: 13vw; bottom: 21vh; }
.echo-bubble { width: 240px; height: 240px; left: 40vw; top: 31vh; }
.finale-bubble { width: 300px; height: 300px; right: 8vw; top: 16vh; }

.stem {
  position: absolute;
  width: 42%;
  height: 46%;
  border-left: 9px solid var(--stem);
  border-top: 9px solid var(--stem);
  border-radius: 80% 0 0 0;
  left: 48%;
  top: -31%;
  transform: rotate(20deg);
  filter: drop-shadow(4px 4px 0 var(--ink));
}
.shine { position: absolute; width: 23%; height: 13%; border-radius: 50%; background: var(--gloss); left: 25%; top: 22%; transform: rotate(-28deg); }

.burst { position: absolute; background: var(--lemon); border: 8px solid var(--ink); clip-path: polygon(50% 0,59% 31%,94% 12%,69% 44%,100% 55%,65% 61%,82% 98%,52% 70%,24% 100%,34% 62%,0 52%,34% 42%,17% 8%,45% 31%); }
.burst-left { width: 360px; height: 360px; left: 5vw; bottom: 6vh; transform: rotate(13deg); }
.sound { position: absolute; font-family: "Shrikhand", Georgia, serif; color: var(--lemon); -webkit-text-stroke: 4px var(--ink); }
.sound-one { right: 34vw; top: 63vh; font-size: clamp(52px, 11vw, 150px); transform: rotate(10deg); }
.caption, .factory-note, .echo-note, .final-note { position: absolute; z-index: 5; max-width: 380px; border: 5px solid var(--ink); background: var(--gloss); padding: 16px 18px; box-shadow: 10px 10px 0 var(--ink); font-weight: 700; text-transform: uppercase; }
.caption-one { left: 9vw; bottom: 10vh; transform: rotate(2deg); }

.halftone { position: absolute; border: 7px solid var(--ink); background-image: radial-gradient(var(--cherry) 0 6px, transparent 7px); background-size: 23px 23px; }
.field-a { width: 31vw; height: 34vh; right: 5vw; top: 8vh; transform: rotate(7deg); background-color: var(--lemon); }

.panel-two { background: var(--lemon); }
.diagonal { position: absolute; inset: -20vh 30vw auto -8vw; height: 75vh; background: var(--cyan); border: 9px solid var(--ink); transform: rotate(-18deg); box-shadow: 18px 18px 0 var(--bubblegum); }
.poster-word { position: absolute; right: -2vw; bottom: 2vh; margin: 0; color: var(--cherry); font: 400 clamp(70px, 13vw, 190px)/.82 "Bungee Shade", Impact, fantasy; letter-spacing: -.08em; transform: rotate(4deg); }
.sticker { position: absolute; z-index: 7; border: 5px solid var(--ink); background: var(--gloss); box-shadow: 8px 8px 0 var(--ink); font: 700 18px/1 "Space Grotesk", sans-serif; display: grid; place-items: center; text-transform: uppercase; }
.oval { border-radius: 50%; width: 180px; height: 92px; }
.circle { border-radius: 50%; width: 118px; height: 118px; }
.sticker-a { left: 18vw; top: 18vh; background: var(--bubblegum); transform: rotate(-15deg); }
.sticker-b { left: 47vw; top: 28vh; background: var(--stem); transform: rotate(11deg); }
.sticker-c { left: 34vw; bottom: 18vh; background: var(--cyan); transform: rotate(-9deg); }
.burst-sticker { left: 62vw; top: 12vh; width: 190px; height: 160px; clip-path: polygon(50% 0,61% 34%,98% 20%,70% 50%,98% 80%,60% 68%,50% 100%,39% 68%,2% 80%,31% 50%,2% 19%,39% 34%); background: var(--lemon); transform: rotate(16deg); }
.factory-note { left: 7vw; bottom: 8vh; background: var(--cream); transform: rotate(-3deg); }

.panel-three { background: var(--cyan); }
.soda-can { position: absolute; left: 13vw; top: 18vh; width: 250px; height: 430px; border: 8px solid var(--ink); border-radius: 38px; background: linear-gradient(90deg, var(--gloss), var(--cherry) 16% 76%, var(--bubblegum)); box-shadow: 18px 18px 0 var(--ink), 30px 30px 0 var(--lemon); transform: rotate(-8deg); display: grid; place-items: center; }
.soda-can span { color: var(--lemon); -webkit-text-stroke: 2px var(--ink); font: 400 48px/.9 "Shrikhand", Georgia, serif; text-align: center; }
.splash { position: absolute; border: 8px solid var(--ink); background: var(--gloss); border-radius: 45% 55% 60% 40%; }
.splash-one { width: 520px; height: 260px; left: 33vw; top: 17vh; transform: rotate(-10deg); box-shadow: 16px 16px 0 var(--cherry); }
.splash-two { width: 310px; height: 180px; right: 10vw; top: 48vh; background: var(--lemon); transform: rotate(18deg); box-shadow: 12px 12px 0 var(--bubblegum); }
.fizz { position: absolute; border: 6px solid var(--ink); border-radius: 50%; background: transparent; }
.fizz-a { width: 70px; height: 70px; left: 45vw; bottom: 17vh; }
.fizz-b { width: 42px; height: 42px; right: 31vw; top: 16vh; }
.fizz-c { width: 115px; height: 115px; right: 21vw; bottom: 12vh; }
.splash-title { position: absolute; left: 34vw; bottom: 5vh; color: var(--lemon); font: 400 clamp(58px, 11vw, 150px)/.8 "Bungee Shade", Impact, fantasy; transform: rotate(-5deg); }
.mono-card { position: absolute; right: 8vw; top: 10vh; background: var(--cream); border: 5px solid var(--ink); padding: 18px; box-shadow: 10px 10px 0 var(--ink); font: 700 16px/1.5 "IBM Plex Mono", monospace; }

.panel-four { background: var(--cream); }
.echo-grid { position: absolute; inset: 11vh 7vw 12vh 6vw; display: grid; grid-template-columns: repeat(6, 1fr); gap: 22px; transform: rotate(-4deg); }
.echo-grid span { border: 6px solid var(--ink); border-radius: 50%; background: var(--cherry); box-shadow: 8px 8px 0 var(--cyan); opacity: .95; }
.echo-grid span:nth-child(3n) { background: var(--bubblegum); transform: scale(.72); }
.echo-grid span:nth-child(4n) { background: var(--lemon); transform: scale(.52); }
.echo-text { position: absolute; left: -2vw; bottom: 4vh; color: var(--cyan); -webkit-text-stroke: 5px var(--ink); font: 400 clamp(72px, 12vw, 175px)/.8 "Shrikhand", Georgia, serif; transform: rotate(3deg); }
.echo-note { right: 7vw; top: 17vh; background: var(--lemon); transform: rotate(5deg); }
.cross-a { position: absolute; left: 11vw; top: 17vh; }
.cross-b { position: absolute; right: 12vw; bottom: 18vh; transform: rotate(22deg); }

.panel-five { background: var(--bubblegum); }
.poster-stack { position: absolute; border: 7px solid var(--ink); padding: 18px 30px; background: var(--cream); box-shadow: 14px 14px 0 var(--ink); font: 400 clamp(46px, 8vw, 112px)/.88 "Bungee Shade", Impact, fantasy; }
.stack-one { left: 7vw; top: 17vh; color: var(--cherry); transform: rotate(-8deg); }
.stack-two { left: 25vw; top: 34vh; color: var(--cyan); transform: rotate(5deg); }
.stack-three { left: 12vw; bottom: 13vh; color: var(--stem); transform: rotate(-2deg); }
.final-word { position: absolute; right: -4vw; bottom: 11vh; margin: 0; color: var(--lemon); font: 400 clamp(66px, 13vw, 185px)/.8 "Bungee Shade", Impact, fantasy; transform: rotate(-4deg); }
.final-note { right: 29vw; top: 15vh; background: var(--gloss); transform: rotate(6deg); }
.ticker { position: absolute; left: 0; right: 0; bottom: 0; padding: 12px 0; border-top: 6px solid var(--ink); border-bottom: 6px solid var(--ink); background: var(--lemon); font: 700 18px/1 "IBM Plex Mono", monospace; white-space: nowrap; animation: ticker 13s linear infinite; }

.fold { position: absolute; width: 110px; height: 110px; right: 0; top: 0; background: linear-gradient(135deg, rgba(22,7,10,.32) 0 49%, var(--gloss) 50%); border-left: 5px solid var(--ink); border-bottom: 5px solid var(--ink); }
.fold-two { left: 0; right: auto; top: auto; bottom: 0; transform: rotate(180deg); }

.sticker-nav { position: fixed; left: 50%; bottom: 18px; transform: translateX(-50%); z-index: 16; display: flex; gap: 13px; align-items: flex-end; }
.nav-sticker { border: 4px solid var(--ink); border-radius: var(--sticker-radius); padding: 10px 15px; background: var(--gloss); box-shadow: 5px 5px 0 var(--ink); cursor: pointer; font: 700 12px/1 "Space Grotesk", sans-serif; text-transform: uppercase; transition: transform .28s cubic-bezier(.2,1.5,.35,1), background .28s ease; }
.nav-sticker:nth-child(2) { background: var(--bubblegum); transform: rotate(5deg); }
.nav-sticker:nth-child(3) { background: var(--cyan); transform: rotate(-4deg); }
.nav-sticker:nth-child(4) { background: var(--stem); transform: rotate(3deg); }
.nav-sticker:nth-child(5) { background: var(--lemon); transform: rotate(-6deg); }
.nav-sticker.active { background: var(--cherry); color: var(--gloss); transform: translateY(-14px) rotate(-8deg) scale(1.08); }

.pop-layer { position: fixed; inset: 0; pointer-events: none; z-index: 30; overflow: hidden; }
.particle { position: absolute; width: 16px; height: 16px; border: 3px solid var(--ink); border-radius: 50%; background: var(--lemon); transform: translate(-50%, -50%); animation: burst-dot .78s cubic-bezier(.1,.7,.2,1) forwards; }
.pop-word { position: absolute; color: var(--lemon); -webkit-text-stroke: 3px var(--ink); font: 400 54px/.9 "Shrikhand", Georgia, serif; transform: translate(-50%, -50%) rotate(-10deg); animation: word-pop .72s ease-out forwards; }

.panel.active .sticker,
.panel.active .poster-stack { animation: peel .9s cubic-bezier(.2,1.4,.32,1) both; }
.panel.active .splash { animation: ink-slide .9s ease both; }

@keyframes breathe { 0%,100% { scale: 1; } 50% { scale: 1.06; } }
@keyframes peel { from { transform: translateY(40px) rotate(-18deg) scale(.85); } }
@keyframes ink-slide { from { clip-path: inset(0 100% 0 0); } to { clip-path: inset(0); } }
@keyframes burst-dot { to { translate: var(--tx) var(--ty); scale: .2; opacity: 0; rotate: 220deg; } }
@keyframes word-pop { 0% { scale: .2; opacity: 0; } 35% { scale: 1.2; opacity: 1; } 100% { scale: .85; opacity: 0; translate: 0 -50px; } }
@keyframes ticker { from { text-indent: 0; } to { text-indent: -50%; } }

@media (max-width: 760px) {
  .edition { display: none; }
  .hero-bubble { width: 64vw; height: 64vw; right: -8vw; }
  .giant-title { font-size: 19vw; top: 20vh; }
  .sticker-nav { gap: 6px; bottom: 10px; }
  .nav-sticker { padding: 8px 9px; font-size: 10px; }
  .poster-word, .splash-title, .final-word { font-size: 18vw; }
  .soda-can { width: 180px; height: 310px; }
  .echo-grid { grid-template-columns: repeat(4, 1fr); }
}