body {
      min-height: 100vh;
      background: linear-gradient(135deg, #232526 0%, #414345 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0;
    }
    .newsletter-container {
      background: #2d2f31;
      border-radius: 18px;
      box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.25);
      padding: 40px 32px 32px 32px;
      max-width: 400px;
      width: 100%;
      color: #fff;
      text-align: center;
      position: relative;
    }
    .newsletter-container h1 {
      font-size: 2rem;
      font-weight: 700;
      margin-bottom: 18px;
      letter-spacing: 1px;
    }
    .newsletter-container p {
      color: #bdbdbd;
      margin-bottom: 28px;
      font-size: 1.05rem;
    }
    .form-control {
      background: #232526;
      border: 1.5px solid #444;
      color: #fff;
      border-radius: 8px;
      padding: 12px;
      font-size: 1rem;
      margin-bottom: 18px;
      transition: border-color 0.2s;
    }
    .form-control:focus {
      border-color: #ffc340;
      box-shadow: none;
      background: #232526;
      color: #fff;
    }
    .btn-newsletter {
      background: linear-gradient(90deg, #ffc340 0%, #ffb310 100%);
      color: #232526;
      font-weight: 700;
      border: none;
      border-radius: 8px;
      padding: 12px 0;
      font-size: 1.1rem;
      transition: background 0.2s, color 0.2s;
      box-shadow: 0 2px 8px rgba(255, 195, 64, 0.08);
    }
    .btn-newsletter:hover {
      background: linear-gradient(90deg, #ffb310 0%, #ffc340 100%);
      color: #232526;
    }
    .newsletter-footer {
      margin-top: 28px;
      font-size: 0.95rem;
      color: #888;
    }
    @media (max-width: 480px) {
      .newsletter-container {
        padding: 28px 10px 20px 10px;
      }
      .newsletter-container h1 {
        font-size: 1.4rem;
      }
    }