:root {
  color-scheme: light;
  font-family: "Trebuchet MS", "Lucida Sans", "Lucida Sans Unicode", sans-serif;
  background: linear-gradient(135deg, #f7efe2, #e7f2ff);
  color: #1a1a1a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
}

.page {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 32px 16px;
}

.card {
  max-width: 420px;
  width: 100%;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 18px;
  padding: 28px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
  text-align: center;
}

h1 {
  margin: 0 0 8px;
  font-size: 24px;
}

p {
  margin: 0 0 16px;
  color: #444;
}

.canvas-wrap {
  display: flex;
  justify-content: center;
  margin: 16px 0;
}

canvas {
  border-radius: 12px;
  border: 2px solid #111;
  background: #000;
  width: 280px;
  height: 280px;
  touch-action: none;
}

.controls {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 10px;
}

button {
  border: none;
  border-radius: 999px;
  padding: 10px 18px;
  font-size: 16px;
  cursor: pointer;
  background: #111;
  color: #fff;
}

button.secondary {
  background: #e1e1e1;
  color: #111;
}

.result {
  margin-top: 16px;
  font-size: 18px;
  font-weight: 600;
}