* {
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  margin: 0;
  background: #f4f6f8;
  color: #1f2937;
}

.container {
  max-width: 760px;
  margin: 40px auto;
  padding: 16px;
}

h1 {
  margin-bottom: 20px;
}

.card {
  background: white;
  border-radius: 14px;
  padding: 20px;
  box-shadow: 0 4px 18px rgba(0,0,0,0.08);
  margin-bottom: 20px;
}

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

button {
  border: 0;
  border-radius: 10px;
  padding: 12px 16px;
  cursor: pointer;
  background: #2563eb;
  color: white;
  font-weight: 600;
}

button:disabled {
  background: #9ca3af;
  cursor: not-allowed;
}