* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', sans-serif;
  background: #1a1a2e;
  color: #eee;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.container {
  text-align: center;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: #e94560;
}

.status {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  min-height: 1.5em;
  color: #a8dadc;
}

.board {
  display: grid;
  grid-template-columns: repeat(3, 120px);
  grid-template-rows: repeat(3, 120px);
  gap: 8px;
  margin: 0 auto 1.5rem;
  width: fit-content;
}

.cell {
  background: #16213e;
  border: 2px solid #0f3460;
  border-radius: 8px;
  font-size: 3rem;
  font-weight: bold;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
  user-select: none;
}

.cell:hover:not(.taken) {
  background: #0f3460;
}

.cell.taken {
  cursor: default;
}

.cell.x {
  color: #e94560;
}

.cell.o {
  color: #a8dadc;
}

.cell.winner {
  background: #0f3460;
  border-color: #e94560;
}

.reset-btn {
  padding: 0.75rem 2rem;
  font-size: 1rem;
  background: #e94560;
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.15s;
}

.reset-btn:hover {
  background: #c73652;
}