body {
      background: linear-gradient(135deg, #e2eafc 0%, #a1c4fd 100%);
      font-family: 'Segoe UI', 'Roboto', system-ui, sans-serif;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
      margin: 0;
    }
    .card {
      padding: 2.5rem 2rem;
      border-radius: 18px;
      box-shadow: 0 8px 32px rgba(44,62,80,0.15);
      background: #fff;
      border: none;
      max-width: 350px;
      width: 100%;
      transition: box-shadow 0.2s;
    }
    .card:hover {
      box-shadow: 0 12px 40px rgba(44,62,80,0.22);
    }
    h2 {
      font-weight: 700;
      color: #2d3a4a;
      margin-bottom: 1.2rem;
    }
    .form-control {
      border-radius: 8px;
      border: 1px solid #dbeafe;
      font-size: 1.1rem;
      padding: 0.7rem 1rem;
      box-shadow: none;
      transition: border-color 0.2s;
    }
    .form-control:focus {
      border-color: #60a5fa;
      outline: none;
      box-shadow: 0 0 0 2px #e2eafc;
    }
    .btn-primary {
      background: linear-gradient(90deg, #60a5fa 0%, #2563eb 100%);
      border: none;
      border-radius: 8px;
      font-weight: 600;
      font-size: 1.1rem;
      padding: 0.7rem 0;
      box-shadow: 0 2px 8px rgba(44,62,80,0.08);
      transition: background 0.2s;
    }
    .btn-primary:hover {
      background: linear-gradient(90deg, #2563eb 0%, #60a5fa 100%);
    }