:root {
  color-scheme: dark;
  --ink: #e8fff5;
  --dim: #668478;
  --field: #07130f;
  --p1: #38d9ff;
  --p2: #ff4f91;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  overflow-x: hidden;
  color: var(--ink);
  background:
    radial-gradient(circle at 50% 20%, #163528 0, #08130f 42%, #020605 100%);
  font-family: "Courier New", monospace;
}

.game-shell {
  width: min(1100px, 96vw);
  padding: 22px 0;
  text-align: center;
}

h1 {
  margin: 0;
  font-size: clamp(1.7rem, 4vw, 3rem);
  letter-spacing: .22em;
  text-shadow: 0 0 18px rgba(232, 255, 245, .38);
}

.subtitle { margin: 4px 0 14px; color: var(--dim); font-size: .8rem; }

.scoreboard {
  display: grid;
  grid-template-columns: 1fr minmax(150px, 1.4fr) 1fr;
  align-items: end;
  width: min(620px, 96%);
  margin: auto;
  font-size: 1rem;
}

.team { display: flex; align-items: baseline; justify-content: center; gap: 14px; }
.team strong { font-size: 2.6rem; line-height: .9; }
.team-one { color: var(--p1); }
.team-two { color: var(--p2); flex-wrap: wrap; }
.clock { color: var(--ink); padding-bottom: 6px; letter-spacing: .12em; }

.ai-toggle {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--ink);
  border: 1px solid rgba(255, 79, 145, .45);
  padding: 3px 7px;
  font-size: .68rem;
  cursor: pointer;
  user-select: none;
}

.ai-toggle input {
  accent-color: var(--p2);
}

.ai-toggle.is-disabled {
  opacity: .45;
  cursor: not-allowed;
}

.canvas-wrap {
  margin-top: 8px;
  padding: 5px;
  border: 1px solid #46685b;
  background: #020806;
  box-shadow: 0 0 35px rgba(64, 255, 170, .08), inset 0 0 12px #000;
}

canvas {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  background: var(--field);
}

.controls {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  margin-top: 13px;
}

.controls div { display: grid; grid-template-columns: auto auto; justify-content: center; gap: 2px 14px; }
.controls small { grid-column: 1 / -1; color: var(--dim); }
.keys { color: var(--ink); letter-spacing: .2em; }
.controls div:first-child b { color: var(--p1); }
.controls div:last-child b { color: var(--p2); }

button {
  color: var(--ink);
  border: 1px solid var(--dim);
  padding: 8px 13px;
  background: transparent;
  font: inherit;
  cursor: pointer;
}
button:hover, button:focus-visible { border-color: var(--ink); box-shadow: 0 0 12px #557; outline: none; }

.p2p-panel {
  width: min(780px, 100%);
  margin: 16px auto 0;
  color: var(--dim);
  text-align: left;
  font-size: .76rem;
}

.p2p-panel details {
  border: 1px solid #2d4f43;
  background: rgba(2, 8, 6, .74);
  padding: 10px 12px;
}

.p2p-panel summary {
  color: var(--ink);
  cursor: pointer;
  letter-spacing: .08em;
}

.p2p-panel p {
  margin: 9px 0;
  line-height: 1.35;
}

.p2p-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 10px 0;
}

.p2p-panel label {
  display: grid;
  gap: 5px;
  margin-top: 9px;
}

.p2p-panel textarea {
  width: 100%;
  min-height: 76px;
  resize: vertical;
  color: var(--ink);
  border: 1px solid #46685b;
  background: #020806;
  font: .72rem "Courier New", monospace;
  padding: 7px;
}

.p2p-status {
  margin-top: 9px;
  color: #fff7c2;
}

@media (max-width: 600px) {
  .game-shell { width: 100vw; padding: 10px 5px; }
  .subtitle { display: none; }
  .controls { gap: 5px; font-size: .72rem; }
  .controls div { gap: 1px 5px; }
  button { padding: 6px; font-size: .65rem; }
}