main {
      flex: 1;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 6rem 2rem 4rem;
    }

    .card {
      background: white;
      max-width: 600px;
      width: 100%;
      padding: 2rem;
      border: 1px solid #ddd;
      border-radius: 16px;
      box-shadow: 0 15px 30px rgba(0,0,0,0.1);
      animation: fadeIn 0.8s ease;
    }

    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(20px); }
      to { opacity: 1; transform: translateY(0); }
    }

    h1 {
      text-align: center;
      margin-bottom: 1.5rem;
      color: #333;
      font-size: 1.8rem;
      weight: 700;
    }

    label {
      display: block;
      margin-bottom: 0.5rem;
      color: #555;
      font-weight: 500;
    }

    input, textarea {
      width: 100%;
      padding: 0.8rem;
      margin-bottom: 1.5rem;
      border: 1px solid #ccc;
      border-radius: 8px;
      font-size: 1rem;
      background: #fafafa;
    }

    .submit-btn {
      background: #007BFF;
      color: white;
      border: none;
      padding: 0.9rem 1.5rem;
      border-radius: 8px;
      cursor: pointer;
      font-size: 1rem;
      width: 100%;
      transition: background 0.3s ease;
    }

    .submit-btn:hover {
      background: #0056b3;
    }

    @media (max-width: 600px) {
      .header-container, .footer-content {
        padding: 1rem;
      }
    }

.nice-textarea {
  width: 100%;
  min-height: 160px;
  padding: 12px;
  font-size: 1rem;
  line-height: 1.6;
  border: 1px solid #ccc;
  border-radius: 8px;
  resize: vertical;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.nice-textarea:focus {
  border-color: #0077ff;
  box-shadow: 0 0 0 3px rgba(0, 119, 255, 0.15);
  outline: none;
}