:root {
  --battle-black: #0b0a0f;
  --battle-paper: #eee7d7;
  --battle-pink: #ff2f7d;
  --battle-cyan: #00ddeb;
  --battle-orange: #ffb000;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  min-width: 20rem;
  min-height: 100%;
  overflow-x: hidden;
  background: var(--battle-black);
}

.battle-page {
  --tool-nav-foreground: var(--battle-paper);
  --tool-nav-background: rgba(11, 10, 15, 0.88);
  --tool-nav-border: rgba(238, 231, 215, 0.3);
  --tool-nav-focus: var(--battle-orange);
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background: var(--battle-black);
  color: var(--battle-paper);
  font-family: "Arial Narrow", "Roboto Condensed", "Helvetica Neue", Arial, sans-serif;
}

.battle-page::before {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 15% 22%, rgba(255, 47, 125, 0.14), transparent 27rem),
    radial-gradient(circle at 88% 68%, rgba(0, 221, 235, 0.11), transparent 28rem);
  content: "";
  pointer-events: none;
}

.battle-shell {
  position: relative;
  display: grid;
  width: min(100% - 2rem, 76rem);
  min-height: 100vh;
  margin-inline: auto;
  padding: clamp(6rem, 11vh, 8.5rem) 0 max(2rem, env(safe-area-inset-bottom));
  align-content: center;
}

.battle-header {
  position: relative;
  z-index: 2;
  margin-bottom: clamp(1.5rem, 4vh, 3rem);
}

.battle-header h1 {
  margin: 0;
  font-family: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif;
  font-size: clamp(4rem, 11vw, 9.5rem);
  font-weight: 900;
  letter-spacing: -0.045em;
  line-height: 0.68;
  text-transform: uppercase;
  transform: scaleX(0.96);
  transform-origin: left bottom;
}

.battle-header h1::first-line {
  color: var(--battle-paper);
}

.matchup {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) clamp(5rem, 10vw, 8rem) minmax(0, 1fr);
  align-items: stretch;
  isolation: isolate;
}

.side {
  --entry-distance: 3rem;
  position: relative;
  display: grid;
  min-width: 0;
  min-height: clamp(12rem, 26vw, 19rem);
  overflow: hidden;
  padding: clamp(1.25rem, 4vw, 3rem);
  place-items: center;
  border: 0.16rem solid currentColor;
  color: var(--battle-black);
  box-shadow: 0.65rem 0.7rem 0 rgba(0, 0, 0, 0.58);
}

.side::before,
.side::after {
  position: absolute;
  content: "";
  pointer-events: none;
}

.side::before {
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.18), transparent 48%);
  opacity: 0.32;
}

.side::after {
  display: none;
}

.side--left {
  --rest-rotation: -1.1deg;
  --rest-shift: 0.3rem;
  background: var(--battle-pink);
  transform: translateX(var(--rest-shift)) rotate(var(--rest-rotation));
}

.side--right {
  --rest-rotation: 1deg;
  --rest-shift: -0.3rem;
  background: var(--battle-cyan);
  transform: translateX(var(--rest-shift)) rotate(var(--rest-rotation));
}

.side__name {
  position: relative;
  max-width: 100%;
  margin: 0;
  overflow-wrap: anywhere;
  font-family: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif;
  font-size: clamp(2rem, 5.1vw, 4.8rem);
  font-weight: 900;
  letter-spacing: -0.025em;
  line-height: 0.9;
  text-align: center;
  text-wrap: balance;
  text-transform: uppercase;
}

.versus {
  position: relative;
  z-index: 3;
  display: grid;
  place-items: center;
}

.versus::before,
.versus::after {
  position: absolute;
  width: clamp(5.6rem, 11vw, 9rem);
  aspect-ratio: 1;
  content: "";
}

.versus::before {
  background: var(--battle-orange);
  clip-path: polygon(50% 0, 60% 30%, 86% 14%, 72% 41%, 100% 50%, 70% 59%, 86% 86%, 60% 70%, 50% 100%, 40% 70%, 14% 86%, 29% 59%, 0 50%, 29% 41%, 14% 14%, 40% 30%);
  filter: drop-shadow(0.35rem 0.4rem 0 #000);
  transform: rotate(8deg);
}

.versus::after {
  border: 0.1rem solid var(--battle-paper);
  border-radius: 50%;
  opacity: 0.28;
  transform: scale(1.22);
}

.versus span {
  position: relative;
  z-index: 1;
  color: var(--battle-black);
  font-family: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif;
  font-size: clamp(2.2rem, 5vw, 4.5rem);
  letter-spacing: -0.06em;
  line-height: 1;
  transform: rotate(-7deg);
}

.topic-button {
  position: relative;
  display: flex;
  width: min(100%, 35rem);
  min-height: clamp(4.75rem, 9vw, 6.2rem);
  margin: clamp(1.8rem, 4vh, 3rem) auto 0;
  overflow: hidden;
  padding: 0 1rem 0 1.5rem;
  align-items: center;
  justify-content: space-between;
  border: 0.18rem solid var(--battle-paper);
  border-radius: 0;
  background: var(--battle-paper);
  box-shadow: 0.55rem 0.55rem 0 var(--battle-pink);
  color: var(--battle-black);
  cursor: pointer;
  font-family: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif;
  font-size: clamp(1.8rem, 5vw, 3.2rem);
  letter-spacing: 0.035em;
  line-height: 1;
  text-align: left;
  touch-action: manipulation;
  transform: rotate(-0.6deg);
  transition:
    color 140ms ease,
    background-color 140ms ease,
    box-shadow 140ms ease,
    transform 140ms ease;
  -webkit-tap-highlight-color: transparent;
}

.topic-button::before {
  position: absolute;
  inset: 0;
  background: var(--battle-orange);
  content: "";
  transform: translateX(-102%) skewX(-14deg);
  transform-origin: left;
  transition: transform 180ms cubic-bezier(0.2, 0.8, 0.2, 1);
  z-index: -1;
}

.topic-button__mark {
  font-family: Arial, sans-serif;
  font-size: 1.35em;
  font-weight: 900;
  line-height: 1;
}

.topic-button:active {
  box-shadow: 0.16rem 0.16rem 0 var(--battle-pink);
  transform: translate(0.35rem, 0.35rem) rotate(0);
}

.topic-button:focus-visible {
  outline: 0.28rem solid var(--battle-cyan);
  outline-offset: 0.38rem;
}

.topic-button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.noscript-message {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  z-index: 10;
  margin: 0;
  padding: 1rem;
  background: var(--battle-orange);
  color: var(--battle-black);
  font-weight: 800;
  text-align: center;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  border: 0;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.matchup.is-changing .side--left {
  animation: chime-drift-left 860ms cubic-bezier(0.22, 0.72, 0.24, 1);
}

.matchup.is-changing .side--right {
  animation: chime-drift-right 860ms cubic-bezier(0.22, 0.72, 0.24, 1);
}

.matchup.is-changing .versus {
  animation: chime-versus 900ms cubic-bezier(0.24, 0.7, 0.24, 1);
}

@keyframes chime-drift-left {
  0% {
    opacity: 0;
    transform:
      translateX(calc(var(--rest-shift) - var(--entry-distance)))
      rotate(calc(var(--rest-rotation) - 2deg))
      scale(0.97);
  }
  58% {
    opacity: 1;
    transform: translateX(var(--rest-shift)) rotate(var(--rest-rotation));
  }
  76% {
    transform:
      translateX(calc(var(--rest-shift) - 0.12rem))
      rotate(calc(var(--rest-rotation) - 0.15deg));
  }
  100% {
    opacity: 1;
    transform: translateX(var(--rest-shift)) rotate(var(--rest-rotation));
  }
}

@keyframes chime-drift-right {
  0% {
    opacity: 0;
    transform:
      translateX(calc(var(--rest-shift) + var(--entry-distance)))
      rotate(calc(var(--rest-rotation) + 2deg))
      scale(0.97);
  }
  58% {
    opacity: 1;
    transform: translateX(var(--rest-shift)) rotate(var(--rest-rotation));
  }
  76% {
    transform:
      translateX(calc(var(--rest-shift) + 0.12rem))
      rotate(calc(var(--rest-rotation) + 0.15deg));
  }
  100% {
    opacity: 1;
    transform: translateX(var(--rest-shift)) rotate(var(--rest-rotation));
  }
}

@keyframes chime-versus {
  0% {
    transform: scale(1) rotate(0);
  }
  22% {
    transform: scale(1.05) rotate(-18deg);
  }
  48% {
    transform: scale(0.98) rotate(10deg);
  }
  72% {
    transform: scale(1.02) rotate(-4deg);
  }
  100% {
    transform: scale(1) rotate(0);
  }
}

@media (hover: hover) {
  .topic-button:hover {
    background: var(--battle-orange);
    color: #000;
    box-shadow: 0.7rem 0.7rem 0 var(--battle-cyan);
    transform: translateY(-0.2rem) rotate(0.4deg);
  }

  .topic-button:hover::before {
    transform: translateX(0) skewX(-14deg);
  }
}

@media (max-width: 43rem) {
  .battle-shell {
    width: min(100% - 1.25rem, 36rem);
    padding-top: 5.7rem;
    align-content: start;
  }

  .battle-header {
    display: block;
    margin-bottom: 1.4rem;
  }

  .battle-header h1 {
    font-size: clamp(4rem, 22vw, 7rem);
    line-height: 0.72;
  }

  .matchup {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: minmax(8.5rem, auto) 3.6rem minmax(8.5rem, auto);
  }

  .side {
    --entry-distance: 2rem;
    min-height: 0;
    padding: 1.1rem 1.2rem 1.25rem;
  }

  .side--left {
    --rest-rotation: -0.7deg;
    --rest-shift: 0rem;
  }

  .side--right {
    --rest-rotation: 0.7deg;
    --rest-shift: 0rem;
  }

  .side__name {
    font-size: clamp(2rem, 11vw, 3.7rem);
  }

  .versus::before,
  .versus::after {
    width: 5rem;
  }

  .versus span {
    font-size: 2.5rem;
  }

  .topic-button {
    min-height: 4.8rem;
    margin-top: 1.7rem;
  }

}

@media (max-height: 48rem) and (min-width: 43.01rem) {
  .battle-shell {
    padding-top: 5.5rem;
    align-content: start;
  }

  .battle-header {
    margin-bottom: 1.5rem;
  }

  .side {
    min-height: 11rem;
  }
}

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