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

body {
  font-family: Arial, sans-serif;
  background: #1a1a2e;
  color: #fff;
  text-align: center;
  padding: 20px;
}

h1 {
  margin-bottom: 14px;
  font-size: 1.8rem;
}

.stats {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 14px;
  font-size: 1rem;
}

.stats strong {
  color: #00d4ff;
}

#gameArea {
  position: relative;
  width: 500px;
  height: 400px;
  background: #16213e;
  border: 2px solid #0f3460;
  margin: 0 auto 14px;
  overflow: hidden;
}

#box {
  position: absolute;
  width: 60px;
  height: 60px;
  background: #2980b9;
  cursor: pointer;
  display: none;
  border-radius: 6px;
}

#box:hover {
  background: #3498db;
}

#trap {
  position: absolute;
  width: 60px;
  height: 60px;
  background: #c0392b;
  cursor: pointer;
  display: none;
  border-radius: 6px;
}

#trap:hover {
  background: #e74c3c;
}

.overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.75);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.overlay h2 {
  font-size: 1.6rem;
}

.overlay p {
  color: #aaa;
  font-size: 0.95rem;
}

.overlay strong {
  color: #f1c40f;
  font-size: 1.4rem;
}

.hint-blue { color: #3498db; font-weight: bold; }
.hint-red  { color: #e74c3c; font-weight: bold; }

#newBest {
  color: #f39c12;
  font-weight: bold;
}

button {
  padding: 10px 24px;
  font-size: 1rem;
  background: #2980b9;
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

button:hover {
  background: #3498db;
}

.controls {
  display: flex;
  justify-content: center;
  gap: 10px;
}

.btn-reset {
  background: #c0392b;
}

.btn-reset:hover {
  background: #e74c3c;
}

#time.urgent {
  color: #e74c3c;
}