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

body {
  background: linear-gradient(135deg, #0b0c11, #1f1f1f);
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: #ffffff;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
  padding: 10px;
  overflow: hidden;
}

.container {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

canvas {
  border: 5px solid #4caf50;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  width: 100%;
  max-width: 600px;
  height: auto;
}

.score-container {
  position: absolute;
  top: 10px;
  left: 10px;
  font-size: 24px;
  color: #4caf50;
}

.start-container,
.restart-container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

button {
  font-size: 20px;
  font-weight: bold;
  padding: 10px;
  border: none;
  outline: none;
  border-radius: 5px;
  background-color: #333;
  color: #fff;
  transition: background-color 0.3s, transform 0.1s;
  margin: 5px;
}

button:hover {
  background-color: #388e3c;
  cursor: pointer;
}

button:active {
  transform: scale(0.95);
  background-color: #555;
}

h1 {
  color: #ff1744;
  font-size: 50px;
  text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.8);
  letter-spacing: 1px;
}

.score-container {
  font-size: 18px;
  text-shadow: 1px 1px 5px rgba(0, 0, 0, 0.5);
}

.restart-container {
  display: none;
}

.controls {
  display: none;
  flex-direction: column;
  position: absolute;
  top: 105%;
  left: 50%;
  transform: translateX(-50%);
}

.horizontal-controls {
  display: flex;
}

@media (pointer: coarse) {
  .controls {
    display: flex;
  }

  button:hover {
    background-color: #333;
    cursor: context-menu;
  }
}

@media (min-width: 1000px) {
  .controls {
    top: 50%;
    left: 115%;
    transform: translateX(-50%) translateY(-50%);
  }
}

@media (max-width: 600px) {
  .score-container {
    font-size: 18px;
  }

  button {
    font-size: 16px;
    padding: 8px 16px;
  }

  h1 {
    font-size: 30px;
  }
}

@media (max-width: 355px) {
  .score-container {
    font-size: 16px;
  }

  button {
    font-size: 14px;
    padding: 6px 12px;
  }

  h1 {
    font-size: 24px;
  }
}