:root {
  --ink: #12151a;
  --paper: #e8e2d6;
  --muted: #8a8478;
  --cyan: #2ec4b6;
  --cyan-deep: #1a8f86;
  --coral: #ff6b4a;
  --coral-deep: #c4452d;
  --floor: #2a3038;
  --line: rgba(232, 226, 214, 0.12);
  --glow: rgba(46, 196, 182, 0.18);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(1200px 600px at 50% -10%, var(--glow), transparent 55%),
    linear-gradient(180deg, #1a1e24 0%, var(--ink) 45%, #0c0e11 100%);
  color: var(--paper);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
}

body {
  display: grid;
  place-items: center;
  padding: 1.25rem;
}

.stage {
  width: min(100%, 1040px);
  display: grid;
  gap: 0.85rem;
}

.topbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.eyebrow {
  margin: 0 0 0.15rem;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.brand h1 {
  margin: 0;
  font-family: "Archivo Black", sans-serif;
  font-size: clamp(2.4rem, 6vw, 3.6rem);
  line-height: 0.9;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

.scoreboard {
  display: grid;
  grid-template-columns: auto auto auto;
  align-items: center;
  gap: 1rem;
  min-width: 240px;
}

.score {
  display: grid;
  justify-items: center;
  gap: 0.15rem;
}

.score .who {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.score span:last-child {
  font-family: "Archivo Black", sans-serif;
  font-size: 2.2rem;
  line-height: 1;
}

.score.p1 span:last-child {
  color: var(--cyan);
}

.score.p2 span:last-child {
  color: var(--coral);
}

.goal {
  font-size: 0.75rem;
  color: var(--muted);
  text-align: center;
}

.goal b {
  color: var(--paper);
  font-weight: 600;
}

.arena-wrap {
  position: relative;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 30%),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 47px,
      rgba(255, 255, 255, 0.015) 48px
    ),
    #15191f;
  box-shadow:
    0 30px 80px rgba(0, 0, 0, 0.45),
    inset 0 0 0 1px rgba(255, 255, 255, 0.03);
  overflow: hidden;
}

#game {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: middle;
}

.banner {
  position: absolute;
  inset: auto 0 38%;
  display: grid;
  place-items: center;
  pointer-events: none;
  font-family: "Archivo Black", sans-serif;
  font-size: clamp(1.6rem, 5vw, 2.8rem);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-shadow: 0 8px 40px rgba(0, 0, 0, 0.65);
  animation: punch 0.45s cubic-bezier(0.2, 1.4, 0.3, 1) both;
}

.banner.p1 {
  color: var(--cyan);
}

.banner.p2 {
  color: var(--coral);
}

.banner.match {
  color: var(--paper);
}

.banner.hidden {
  display: none;
}

@keyframes punch {
  from {
    transform: scale(0.7);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

.hud {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.controls {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
  font-size: 0.78rem;
  color: var(--muted);
}

.controls .tag {
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.68rem;
}

.controls.p1 .tag {
  color: var(--cyan);
}

.controls.p2 .tag {
  color: var(--coral);
}

kbd {
  display: inline-grid;
  place-items: center;
  min-width: 1.55rem;
  height: 1.55rem;
  padding: 0 0.3rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--paper);
  font: inherit;
  font-size: 0.72rem;
}

#restart {
  appearance: none;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--paper);
  font: inherit;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.55rem 0.9rem;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
}

#restart:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(232, 226, 214, 0.35);
}

@media (max-width: 720px) {
  .hud {
    justify-content: center;
  }

  .controls .hint {
    display: none;
  }
}