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

body {
  font-family: system-ui, -apple-system, sans-serif;
  background: #0a0a0a;
  color: #fff;
  min-height: 100vh;
}

.app {
  max-width: 500px;
  margin: 0 auto;
  padding: 20px;
}

header {
  text-align: center;
  margin-bottom: 30px;
}

header h1 {
  font-size: 2.2rem;
  background: linear-gradient(90deg, #ff2d55, #ff9500);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

header p {
  color: #aaa;
  margin-top: 8px;
}

.upload-section {
  text-align: center;
  margin-bottom: 30px;
}

#upload-btn, #download-btn, .style-btn, #unlock-btn, #activate-btn {
  background: #ff2d55;
  color: white;
  border: none;
  padding: 14px 24px;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  margin: 8px;
}

#upload-btn:hover, #download-btn:hover {
  background: #ff4d6d;
}

#canvas {
  max-width: 100%;
  border-radius: 16px;
  margin-top: 20px;
  background: #111;
  display: none;
}

.controls h2 {
  margin-bottom: 12px;
  font-size: 1.2rem;
}

.styles {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.premium {
  margin-top: 40px;
  text-align: center;
  padding: 20px;
  background: #111;
  border-radius: 16px;
}

#status {
  margin-bottom: 12px;
  color: #aaa;
}

#code-section {
  margin-top: 16px;
}

#code-input {
  padding: 12px;
  border-radius: 8px;
  border: 1px solid #333;
  background: #1a1a1a;
  color: white;
  width: 200px;
  margin-right: 8px;
}