* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;

  font-family: system-ui, "Segoe UI", sans-serif;
  background: #0b1220;
  color: #e5e7eb;
}

.wrapper {
  width: 100%;
  height: 100vh;
  padding: 16px;

  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.title {
  margin: 0;

  font-size: clamp(1.6rem, 5vw, 2.8rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: 0.08em;
  text-align: center;
  text-transform: uppercase;
  white-space: nowrap;

  background: linear-gradient(90deg, #60a5fa, #a78bfa, #f472b6);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;

  text-shadow: 0 0 20px rgba(167, 139, 250, 0.35);
  filter: drop-shadow(0 0 10px rgba(96, 165, 250, 0.35));
}

.status {
  min-height: 1.2em;
  margin: 0;

  font-size: clamp(0.9rem, 2vw, 1.1rem);
  line-height: 1.2;
  text-align: center;
}

.game-area {
  display: grid;
  grid-template-columns: auto auto auto;
  align-items: center;
  justify-content: center;
  gap: clamp(12px, 3vw, 32px);
}

.game-board {
  --gap: 8px;

  width: min(62vw, 54vh, 720px);
  aspect-ratio: 1 / 1;

  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: var(--gap);

  flex: 0 0 auto;
}

.cell {
  min-width: 0;
  min-height: 0;
  padding: 0;

  display: grid;
  place-items: center;

  appearance: none;
  border: 2px solid #3b82f6;
  border-radius: 10px;
  background: linear-gradient(145deg, #1e3a8a, #0f172a);

  color: #e5e7eb;
  font: inherit;
  font-size: clamp(2rem, 6vw, 3rem);
  font-weight: 800;
  line-height: 1;

  cursor: pointer;
  user-select: none;

  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease,
    background 0.2s ease;
}

.cell:empty:hover {
  transform: translateY(-2px);
  background: linear-gradient(145deg, #2563eb, #1e3a8a);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.35);
}

.cell:focus-visible {
  outline: 3px solid #a78bfa;
  outline-offset: 3px;
}

.cell.x {
  color: #60a5fa;

  /* Dark outline around the X */
  -webkit-text-stroke: 2px #172554;

  /* Drop shadow and blue glow */
  text-shadow:
    3px 4px 2px rgba(8, 20, 45, 0.9),
    0 0 14px rgba(96, 165, 250, 0.6),
    0 0 28px rgba(59, 130, 246, 0.35);
}

.cell.o {
  color: #f472b6;

  /* Dark outline around the O */
  -webkit-text-stroke: 2px #500724;

  /* Drop shadow and pink glow */
  text-shadow:
    3px 4px 2px rgba(45, 8, 35, 0.9),
    0 0 14px rgba(244, 114, 182, 0.6),
    0 0 28px rgba(236, 72, 153, 0.35);
}

.cell.winner {
  border-color: #6ee7b7;
  background: linear-gradient(145deg, #10b981, #059669);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.55);
}

.score {
  min-width: 72px;

  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;

  text-align: center;
}

.score-player {
  font-size: clamp(1.5rem, 4vw, 2.4rem);
  font-weight: 900;
  line-height: 1;
}

.score-x .score-player {
  color: #60a5fa;
  text-shadow: 0 0 14px rgba(96, 165, 250, 0.5);
}

.score-o .score-player {
  color: #f472b6;
  text-shadow: 0 0 14px rgba(244, 114, 182, 0.5);
}

.score-number {
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 800;
  line-height: 1;
}

.score-label {
  color: #94a3b8;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.button-row {
  display: flex;
  justify-content: center;
  gap: 8px;
}

.reset-btn,
.score-reset-btn {
  margin: 0;
  padding: 9px 16px;

  border: none;
  border-radius: 8px;

  color: #ffffff;
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;

  transition:
    background 0.15s ease,
    transform 0.1s ease,
    box-shadow 0.15s ease;
}

.reset-btn {
  background: #2563eb;
}

.reset-btn:hover {
  background: #1d4ed8;
  transform: translateY(-1px);
  box-shadow: 0 5px 16px rgba(37, 99, 235, 0.35);
}

.score-reset-btn {
  background: #475569;
}

.score-reset-btn:hover {
  background: #64748b;
  transform: translateY(-1px);
  box-shadow: 0 5px 16px rgba(100, 116, 139, 0.3);
}

.reset-btn:active,
.score-reset-btn:active {
  transform: translateY(0);
}

@media (max-width: 520px) {
  .game-area {
    gap: 10px;
  }

  .score {
    min-width: 42px;
  }

  .game-board {
    width: min(70vw, 48vh);
  }

  .button-row {
    flex-wrap: wrap;
  }
}