@import url('https://fonts.googleapis.com/css2?family=Oxanium:wght@400;700&family=Press+Start+2P&display=swap');

:root {
  --cell-size: 3.25rem;
  --board-blue-top: #1f5fff;
  --board-blue-bottom: #1036a9;
  --board-shadow: rgba(4, 10, 36, 0.42);
  --surface: rgba(11, 18, 48, 0.8);
  --text-main: #eef4ff;
  --text-muted: #c9d7ff;
  --player-one: #ff4d6d;
  --player-two: #ffd93d;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.75rem;
  padding: 2rem 1rem;
  background:
    radial-gradient(circle at top, rgba(103, 161, 255, 0.3), transparent 36%),
    linear-gradient(180deg, #111735 0%, #050914 100%);
  color: var(--text-main);
  font-family: 'Oxanium', sans-serif;
}

#board {
  position: relative;
  padding: 1rem 1.15rem;
  border-radius: 2rem;
  background: linear-gradient(180deg, var(--board-blue-top) 0%, var(--board-blue-bottom) 100%);
  box-shadow:
    0 1.25rem 2.5rem var(--board-shadow),
    inset 0 0.25rem 0 rgba(255, 255, 255, 0.2);
}

#board table {
  position: relative;
  z-index: 1;
  border-collapse: collapse;
}

tr {
  display: block;
}

td {
  width: var(--cell-size);
  height: var(--cell-size);
  margin: 0.4rem;
  display: inline-block;
  border: 3px solid rgba(7, 21, 84, 0.95);
  border-radius: 50%;
  background:
    radial-gradient(circle at 32% 30%, #ffffff 0%, #f6f7fb 42%, #dbe3ff 100%);
  box-shadow:
    inset 0 0.25rem 0.5rem rgba(255, 255, 255, 0.72),
    inset 0 -0.3rem 0.65rem rgba(93, 115, 198, 0.4);
  transition:
    transform 180ms ease,
    box-shadow 240ms ease,
    filter 240ms ease;
}

td.player-one {
  background:
    radial-gradient(circle at 32% 30%, #ffb0c0 0%, #ff4d6d 42%, #b81b3d 100%);
  box-shadow:
    inset 0 0.18rem 0.42rem rgba(255, 255, 255, 0.38),
    inset 0 -0.32rem 0.65rem rgba(114, 10, 32, 0.42);
}

td.player-two {
  background:
    radial-gradient(circle at 32% 30%, #fff6ad 0%, #ffd93d 42%, #cc9b00 100%);
  box-shadow:
    inset 0 0.18rem 0.42rem rgba(255, 255, 255, 0.42),
    inset 0 -0.32rem 0.65rem rgba(126, 86, 0, 0.38);
}

td.winning-cell {
  animation: winnerPulse 820ms ease-in-out infinite alternate;
  transform: scale(1.08);
}

td.winning-cell-player-one {
  box-shadow:
    0 0 0.6rem rgba(255, 77, 109, 0.85),
    0 0 1.45rem rgba(255, 77, 109, 0.75),
    inset 0 0.1rem 0.45rem rgba(255, 255, 255, 0.55);
}

td.winning-cell-player-two {
  box-shadow:
    0 0 0.6rem rgba(255, 217, 61, 0.92),
    0 0 1.45rem rgba(255, 217, 61, 0.78),
    inset 0 0.1rem 0.45rem rgba(255, 255, 255, 0.58);
}

#board.win-state table {
  filter: saturate(1.08) brightness(1.04);
}

.dropping-token {
  position: absolute;
  border: 3px solid rgba(7, 21, 84, 0.95);
  border-radius: 50%;
  pointer-events: none;
  z-index: 2;
  box-shadow:
    0 0.35rem 0.75rem rgba(5, 11, 37, 0.35),
    inset 0 0.1rem 0.35rem rgba(255, 255, 255, 0.28);
  transition: transform 320ms cubic-bezier(0.2, 0.75, 0.3, 1);
}

.win-overlay {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 1.5rem;
  border-radius: 2rem;
  background: linear-gradient(180deg, rgba(7, 10, 29, 0.08) 0%, rgba(4, 6, 18, 0.8) 100%);
  backdrop-filter: blur(6px);
  opacity: 0;
  transform: translateY(0.8rem) scale(0.98);
  pointer-events: none;
  transition:
    opacity 260ms ease,
    transform 260ms ease;
}

.win-overlay.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.win-title,
.replay-button,
#tour {
  font-family: 'Press Start 2P', cursive;
}

.win-title {
  margin: 0;
  max-width: 17rem;
  text-align: center;
  font-size: 0.9rem;
  line-height: 1.7;
  color: #fff7c8;
  text-shadow:
    0 0 0.5rem rgba(255, 217, 61, 0.55),
    0 0 1.1rem rgba(255, 77, 109, 0.28);
}

.win-subtitle {
  margin: 0;
  max-width: 18rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.45;
}

.replay-button {
  border: none;
  border-radius: 999px;
  padding: 0.95rem 1.6rem;
  background: linear-gradient(135deg, #ffe44f 0%, #ff8b3d 100%);
  color: #1c1731;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  cursor: pointer;
  box-shadow:
    0 0.75rem 1.5rem rgba(255, 139, 61, 0.35),
    inset 0 -0.2rem 0 rgba(0, 0, 0, 0.12);
  transition:
    transform 150ms ease,
    box-shadow 150ms ease,
    filter 150ms ease;
}

.replay-button:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow:
    0 1rem 1.75rem rgba(255, 139, 61, 0.45),
    inset 0 -0.2rem 0 rgba(0, 0, 0, 0.12);
  filter: brightness(1.03);
}

.replay-button:active {
  transform: translateY(1px) scale(0.99);
}

#tour {
  max-width: min(90vw, 34rem);
  text-align: center;
  font-size: 0.8rem;
  line-height: 1.7;
  color: #f8fbff;
  text-shadow: 0 0 0.8rem rgba(103, 161, 255, 0.35);
}

@keyframes winnerPulse {
  from {
    transform: scale(1.03);
    filter: brightness(1);
  }

  to {
    transform: scale(1.11);
    filter: brightness(1.14);
  }
}

@media (max-width: 640px) {
  :root {
    --cell-size: 2.55rem;
  }

  #board {
    padding: 0.7rem 0.75rem;
    border-radius: 1.5rem;
  }

  td {
    margin: 0.28rem;
  }

  .win-title {
    font-size: 0.72rem;
  }

  .win-subtitle {
    font-size: 0.9rem;
  }

  .replay-button,
  #tour {
    font-size: 0.62rem;
  }
}