:root {
    --color-bg: #ffffff;
    --color-text: #1f2937;
    --color-primary: #2563eb;
    --color-primary-light: #e0f2fe;
    --color-gray-light: #f3f4f6;
    --color-gray: #9ca3af;
    --color-button: #6b7280;
    --color-button-hover: #4b5563;
    --border-radius: 6px;
    --spacing: 1rem;
    --font-family: "Segoe UI", Roboto, sans-serif;
  }
  
  body {
    margin: 0;
    padding: 0;
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-family);
  }
  
  .container {
    max-width: 800px;
    margin: auto;
    padding: var(--spacing);
  }
  
  .card {
    background: var(--color-gray-light);
    padding: var(--spacing);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
  }
  
  h1, h2, h3 {
    color: var(--color-text);
  }
  
  label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
  }
  
  input, select, textarea {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--color-gray);
    border-radius: var(--border-radius);
    background: #fff;
    font-size: 1rem;
    margin-bottom: 1rem;
  }
  
  button {
    background-color: var(--color-button);
    color: white;
    border: none;
    padding: 0.6rem 1.2rem;
    font-size: 1rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color 0.2s ease-in-out;
  }
  
  button:hover {
    background-color: var(--color-button-hover);
  }
  
  a {
    color: var(--color-primary);
    text-decoration: none;
  }
  
  a:hover {
    text-decoration: underline;
  }