:root {
  --black: #000;
  --red: #ff1018;
  --white: #f8f4ee;
  --cream: #c8b896;
  --ease: cubic-bezier(.76, 0, .24, 1);
  --snap: cubic-bezier(.2, .8, .2, 1);
  --t: 680ms;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--black);
}

body {
  min-width: 320px;
  color: var(--white);
  font-family: Impact, Haettenschweiler, "Arial Black", system-ui, sans-serif;
}

button,
a {
  font: inherit;
}

.deck-shell {
  position: fixed;
  inset: 0;
  isolation: isolate;
  overflow: hidden;
  background: var(--black);
}

.stage {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background: var(--black);
  touch-action: none;
}

.stage::before,
.stage::after {
  content: "";
  position: absolute;
  inset: -12%;
  z-index: 20;
  pointer-events: none;
  opacity: 0;
}

.stage::before {
  background:
    linear-gradient(106deg, transparent 0 31%, var(--red) 31% 36%, transparent 36% 100%),
    linear-gradient(106deg, transparent 0 54%, rgba(248, 244, 238, .88) 54% 56%, transparent 56% 100%);
  mix-blend-mode: screen;
  transform: translateX(-128%) skewX(-12deg);
}

.stage::after {
  background:
    repeating-linear-gradient(90deg, transparent 0 7.4vw, rgba(255, 16, 24, .95) 7.4vw calc(7.4vw + 2.4vw)),
    linear-gradient(90deg, rgba(0, 0, 0, .92), rgba(0, 0, 0, 0) 30% 70%, rgba(0, 0, 0, .92));
  transform: translateY(120%);
}

.deck-shell.is-transitioning .stage::before {
  animation: slash-wipe var(--t) var(--ease) both;
}

.deck-shell.is-transitioning[data-transition="shutter"] .stage::before {
  animation: none;
}

.deck-shell.is-transitioning[data-transition="shutter"] .stage::after {
  animation: shutter var(--t) var(--ease) both;
}

.deck-shell.is-transitioning[data-transition="snap"] .stage::before {
  animation: snap-flash 560ms var(--ease) both;
}

.frame {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  background: var(--black);
  transform: translate3d(var(--enter-x, 0), var(--enter-y, 0), 0) scale(var(--enter-scale, .985));
  transition:
    opacity 360ms ease,
    visibility 0ms linear var(--t),
    transform var(--t) var(--ease);
}

.frame.is-active {
  z-index: 5;
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate3d(0, 0, 0) scale(1);
  transition:
    opacity 420ms ease,
    visibility 0ms,
    transform var(--t) var(--ease);
}

.frame.is-exiting {
  z-index: 4;
  visibility: visible;
  opacity: 0;
  transform: translate3d(var(--exit-x, 0), var(--exit-y, 0), 0) scale(var(--exit-scale, 1.015));
  transition:
    opacity 420ms ease,
    transform var(--t) var(--ease),
    visibility 0ms linear var(--t);
}

.deck-shell[data-direction="next"] .frame {
  --enter-x: 3.2vw;
  --enter-scale: 1.01;
}

.deck-shell[data-direction="next"] .frame.is-exiting {
  --exit-x: -3.2vw;
  --exit-scale: .99;
}

.deck-shell[data-direction="prev"] .frame {
  --enter-x: -3.2vw;
  --enter-scale: .99;
}

.deck-shell[data-direction="prev"] .frame.is-exiting {
  --exit-x: 3.2vw;
  --exit-scale: 1.01;
}

.frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  user-select: none;
  -webkit-user-drag: none;
}

.tap-zone {
  position: absolute;
  z-index: 10;
  top: 0;
  bottom: 0;
  width: min(18vw, 220px);
  border: 0;
  padding: 0;
  background: transparent;
  cursor: pointer;
}

.tap-prev {
  left: 0;
}

.tap-next {
  right: 0;
}

.hud {
  position: fixed;
  z-index: 30;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  display: grid;
  grid-template-columns: 42px minmax(96px, 180px) auto 42px;
  align-items: center;
  gap: 12px;
  color: var(--white);
  opacity: 0;
  transform: translateY(10px);
  transition:
    opacity 240ms ease,
    transform 240ms var(--snap);
}

.deck-shell.is-awake .hud,
.hud:focus-within {
  opacity: 1;
  transform: translateY(0);
}

.nav-button {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(248, 244, 238, .32);
  background: rgba(0, 0, 0, .44);
  color: var(--white);
  cursor: pointer;
  transition:
    background 160ms ease,
    border-color 160ms ease,
    color 160ms ease,
    transform 160ms var(--snap);
}

.nav-button::before {
  content: "";
  width: 12px;
  height: 12px;
  border-top: 3px solid currentColor;
  border-left: 3px solid currentColor;
}

.nav-button.prev::before {
  transform: rotate(-45deg) translate(2px, 2px);
}

.nav-button.next::before {
  transform: rotate(135deg) translate(2px, 2px);
}

.nav-button:hover,
.nav-button:focus-visible {
  background: var(--red);
  border-color: var(--red);
  color: var(--black);
  transform: translateY(-2px);
}

.nav-button:disabled {
  opacity: .32;
  cursor: default;
  transform: none;
}

.nav-button:focus-visible,
.shop-cta:focus-visible {
  outline: 3px solid var(--white);
  outline-offset: 6px;
}

.meter {
  height: 3px;
  overflow: hidden;
  background: rgba(248, 244, 238, .24);
}

.meter span {
  display: block;
  width: var(--progress, 9.09%);
  height: 100%;
  background: var(--red);
  transition: width 420ms var(--snap);
}

.counter {
  min-width: 62px;
  color: rgba(248, 244, 238, .78);
  font-size: 13px;
  line-height: 1;
  letter-spacing: .04em;
}

.cta-frame {
  overflow: hidden;
  text-transform: uppercase;
}

.cta-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(circle at 50% 50%, rgba(255, 16, 24, .18), transparent 30%),
    repeating-linear-gradient(116deg, rgba(255, 16, 24, .13) 0 2px, transparent 2px 44px),
    var(--black);
}

.cta-art {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.burst {
  position: absolute;
  display: block;
  width: clamp(70px, 12vw, 210px);
  aspect-ratio: 1;
  background: var(--red);
  clip-path: polygon(50% 0, 59% 35%, 100% 50%, 59% 65%, 50% 100%, 41% 65%, 0 50%, 41% 35%);
}

.b1 {
  top: 13%;
  left: 10%;
  transform: rotate(16deg);
}

.b2 {
  right: 12%;
  top: 16%;
  transform: rotate(-20deg) scale(.8);
}

.b3 {
  right: 22%;
  bottom: 15%;
  transform: rotate(8deg) scale(1.1);
}

.slash {
  position: absolute;
  left: 15%;
  bottom: 14%;
  width: clamp(260px, 42vw, 760px);
  height: clamp(48px, 7vw, 115px);
  background: var(--red);
  clip-path: polygon(0 45%, 20% 18%, 49% 34%, 73% 2%, 100% 42%, 78% 82%, 48% 64%, 18% 98%);
}

.shop-cta {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  max-width: calc(100vw - 44px);
  min-height: clamp(74px, 13vw, 132px);
  padding: .2em .55em;
  background: var(--red);
  color: var(--black);
  box-shadow: 0 0 0 5px var(--red), 0 0 0 10px var(--white);
  font-size: clamp(2.2rem, 8vw, 7.4rem);
  line-height: .86;
  text-align: center;
  text-decoration: none;
  transform: rotate(-1deg);
  transition:
    background 180ms ease,
    box-shadow 180ms ease,
    transform 180ms var(--snap);
}

.shop-cta:hover {
  background: var(--white);
  box-shadow: 0 0 0 5px var(--white), 0 0 0 10px var(--red);
  transform: translateY(-3px) rotate(0deg);
}

@keyframes slash-wipe {
  0% {
    opacity: 0;
    transform: translateX(-128%) skewX(-12deg);
  }

  24% {
    opacity: .96;
  }

  100% {
    opacity: 0;
    transform: translateX(128%) skewX(-12deg);
  }
}

@keyframes shutter {
  0% {
    opacity: 0;
    transform: translateY(120%);
  }

  32% {
    opacity: 1;
    transform: translateY(0);
  }

  100% {
    opacity: 0;
    transform: translateY(-120%);
  }
}

@keyframes snap-flash {
  0% {
    opacity: 0;
    transform: scaleX(.02) translateX(-20%);
  }

  38% {
    opacity: .9;
    transform: scaleX(1.2) translateX(0);
  }

  100% {
    opacity: 0;
    transform: scaleX(.02) translateX(20%);
  }
}

@media (max-width: 720px) {
  .hud {
    right: 12px;
    bottom: 12px;
    left: 12px;
    grid-template-columns: 42px minmax(70px, 1fr) auto 42px;
    gap: 9px;
  }

  .counter {
    min-width: 54px;
    font-size: 12px;
  }

  .tap-zone {
    width: 26vw;
  }
}

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

  .stage::before,
  .stage::after {
    display: none;
  }
}