body {
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      font-family: 'Vazirmatn', sans-serif;
      min-height: 100vh;
      display: flex;
      align-items: center;
    }
    .login-card {
      background: white;
      border-radius: 1.5rem;
      box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
      padding: 2.5rem;
      max-width: 420px;
      margin: auto;
    }
    .login-title {
      font-weight: 600;
      color: #2d1b69;
      margin-bottom: 1.8rem;
      font-size: 1.75rem;
    }
    .form-control {
      border-radius: 0.75rem;
      padding: 0.75rem 1rem;
      border: 1.5px solid #e2e8f0;
      transition: all 0.3s ease;
    }
    .form-control:focus {
      border-color: #667eea;
      box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
    }
    .btn-login {
      background: linear-gradient(to right, #667eea, #764ba2);
      border: none;
      border-radius: 0.75rem;
      padding: 0.75rem;
      font-weight: 500;
      transition: transform 0.2s ease;
    }
    .btn-login:hover {
      transform: translateY(-2px);
    }
    .extra-links a {
      color: #667eea;
      text-decoration: none;
      font-size: 0.95rem;
      transition: color 0.3s;
    }
    .extra-links a:hover {
      color: #764ba2;
    }
    .divider {
      color: #94a3b8;
      font-size: 0.9rem;
    }