* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #111;
  color: #eee;
}

.page {
  width: min(920px, 100%);
  margin: 0 auto;
  padding: 24px;
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 20px;
}

.card {
  background: #1b1b1b;
  border: 1px solid #333;
  border-radius: 14px;
  padding: 18px;
}

h1, h2 {
  margin-top: 0;
}

.hud {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

canvas {
  width: 100%;
  max-width: 400px;
  height: auto;
  display: block;
  background: #070707;
  border: 1px solid #444;
  border-radius: 10px;
  touch-action: none;
}

.controls {
  display: flex;
  gap: 10px;
  margin-top: 14px;
  flex-wrap: wrap;
}

button, input {
  font: inherit;
  border-radius: 8px;
  border: 1px solid #555;
  padding: 8px 12px;
}

button {
  background: #2b2b2b;
  color: #fff;
  cursor: pointer;
}

button:hover {
  background: #383838;
}

input {
  width: 100%;
  background: #111;
  color: #fff;
  margin-bottom: 10px;
}

.hint {
  color: #aaa;
  font-size: 14px;
}

.hidden {
  display: none;
}

.scores {
  padding-left: 24px;
}

.scores li {
  margin-bottom: 8px;
}

.score-form {
  margin-bottom: 18px;
  padding: 12px;
  border: 1px solid #333;
  border-radius: 10px;
  background: #151515;
}

@media (max-width: 760px) {
  .page {
    grid-template-columns: 1fr;
    padding: 14px;
  }
}