* {
    box-sizing: border-box;
  }
  body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #0f0f0f;
    color: #f0f0f0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
    overflow: hidden;
  }
  h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: #f77f00;
  }
  p {
    color: #bbb;
    margin-bottom: 2rem;
    font-size: 1.1rem;
    width: 80%;
    text-align: center;
  }
  .btn {
    background-color: #f77f00;
    border: none;
    color: white;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    margin: 0.5rem;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s;
  }
  .btn:hover {
    background-color: #e06c00;
  }
  .modal {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #1a1a1a;
    border: 2px solid #f77f00;
    border-radius: 10px;
    padding: 2rem;
    box-shadow: 0 0 20px rgba(255, 165, 0, 0.2);
    z-index: 100;
    display: none;
  }
  input {
    width: 100%;
    padding: 0.6rem;
    margin: 0.5rem 0;
    font-size: 1rem;
    border: none;
    border-radius: 6px;
    background: #2a2a2a;
    color: #fff;
  }