body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #eef3ff;
  text-align: center;
}

h1 {
  margin-top: 20px;
}

.modes {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 15px;
}

.top {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 20px;
  font-size: 20px;
}

button {
  padding: 10px 14px;
  border: none;
  border-radius: 10px;
  background: #4b7bec;
  color: white;
  cursor: pointer;
  font-size: 15px;
}

button:hover {
  background: #3867d6;
}

#game {
  width: 600px;
  height: 400px;
  background: #7bed9f;
  margin: 0 auto;
  border: 5px solid #2ed573;
  border-radius: 20px;
  position: relative;
  overflow: hidden;
}

#player {
  position: absolute;
  left: 280px;
  top: 180px;
  font-size: 40px;
  transition: 0.08s;
  z-index: 2;
}

#bot {
  position: absolute;
  left: 100px;
  top: 100px;
  font-size: 40px;
  z-index: 2;
}

.coin {
  position: absolute;
  font-size: 28px;
}

#shop {
  position: fixed;
  top: 100px;
  left: 50%;
  transform: translateX(-50%);
  background: white;
  width: 320px;
  padding: 20px;
  border-radius: 20px;
  box-shadow: 0 0 30px rgba(0,0,0,0.25);
  z-index: 10;
}

.hidden {
  display: none;
}

.item {
  background: #f1f2f6;
  margin: 12px 0;
  padding: 12px;
  border-radius: 12px;
}

.premium {
  background: #fff3cd;
}

.hint {
  color: #555;
}

.rivals-mode {
  background: #ff7675 !important;
  border-color: #d63031 !important;
}

.survival-mode {
  background: #636e72 !important;
  border-color: #2d3436 !important;
}

.world-mode {
  background: #7bed9f !important;
  border-color: #2ed573 !important;
}