body {
    background: linear-gradient(to right, #1e3a8a, #dc2626);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .login-card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    max-width: 450px;
    width: 100%;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
  }

  .nav-tabs .nav-link.active {
    border-color: transparent;
    border-bottom: 2px solid #6366f1;
    color: #6366f1;
    font-weight: 500;
  }

  .form-control:focus {
    border-color: #6366f1;
    box-shadow: 0 0 0 0.2rem rgba(99, 102, 241, .25);
  }

  .btn-dark {
    font-weight: bold;
  }

  .logo {
    display: block;
    margin: 0 auto 1.5rem;
    height: 80px;
  }


  .gradient-button {
    display: inline-block;
    padding: 0.5em 1em;
    border: 2px solid transparent;
    border-radius: 50px;
    background-image: linear-gradient(white, white),
      linear-gradient(to right, red 0%, blue 50%, red 100%);
    background-origin: padding-box, border-box;
    background-clip: padding-box, border-box;
    background-size: 100% 100%, 200% 100%;
    background-position: 0% 0%, 0% 0%;
    background-repeat: no-repeat, no-repeat;
    color: blue;
    cursor: pointer;
    transition: background-position 0.5s ease, box-shadow 0.3s ease,
      transform 0.3s ease;
    text-decoration: none;

  }

  .gradient-button:hover {
    background-position: 0% 0%, 100% 0%;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
  }

  .nav-tabs .nav-link.active {
    border: none;
    border-bottom: 3px solid transparent;
    background: linear-gradient(to right, red, blue);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
    font-weight: 500;
  }

  .nav-tabs .nav-link.active::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -1px;
    width: 100%;
    height: 2px;
    background: linear-gradient(to right, red, blue);
    border-radius: 2px;
  }

  .nav-tabs .nav-link {
    border: none;
  }