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

body {
  background-color: #000;
  color: #fff;
  font-family: Arial, sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px;
}

.container {
  max-width: 480px;
  width: 100%;
  background: rgba(255,255,255,0.1);
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 0 15px #fff4;
}

h2 {
  text-align: center;
  margin-bottom: 20px;
}

.revenue-input {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
}

.revenue-input input[type="text"],
.revenue-input input[type="number"] {
  flex: 1;
  padding: 8px;
  border-radius: 8px;
  border: 1px solid #fff;
  background: transparent;
  color: #fff;
  font-size: 14px;
}

.revenue-input input::placeholder {
  color: #ccc;
}

.remove-btn {
  background: #ff4444;
  border: none;
  border-radius: 8px;
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  width: 32px;
  height: 32px;
  line-height: 24px;
  font-weight: bold;
  padding: 0;
  user-select: none;
  transition: background-color 0.3s ease;
}

.remove-btn:hover {
  background: #cc0000;
}

button {
  margin-top: 12px;
  width: 100%;
  padding: 12px;
  font-size: 16px;
  background-color: #fff;
  color: #000;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  font-weight: bold;
  transition: background 0.3s ease;
}

button:hover {
  background-color: #ddd;
}

canvas {
  margin-top: 25px;
  max-width: 100%;
  height: auto !important;
  background: #111;
  border-radius: 12px;
}

footer {
  margin-top: 30px;
  text-align: center;
  color: #aaa;
  font-size: 14px;
}