body {
     height: 100vh;
     margin: 0;
     padding: 0;
     background: #ffffff;
     display: flex;
     align-items: center;
     justify-content: center;
     font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
 }

 .login-container {
     max-width: 400px;
     width: 100%;
 }

 .login-card {
     background: white;
     border-radius: 18px;
     padding-bottom: 30px;
     box-shadow: 0px 8px 20px rgba(0, 0, 0, 0.08);
     overflow: hidden;
     border: 1px solid #eee;
 }

 .login-header {
     text-align: center;
     padding: 30px 20px 20px;
 }

 .login-header img {
     width: 70px;
     height: 70px;
     object-fit: contain;
     margin-bottom: 10px;
 }

 .brand-name {
     font-size: 22px;
     font-weight: 700;
     color: #333;
 }

 .welcome-text {
     font-size: 15px;
     color: #555;
 }

 .login-body {
     padding: 25px 30px;
 }

 .form-label {
     font-weight: 600;
     color: #333;
     margin-bottom: 8px;
 }

 .form-control {
     border-radius: 10px;
     padding: 12px 15px;
     border: 1px solid #ccc;
     transition: 0.25s ease;
 }

 .form-control::placeholder {
     color: #888;
 }

 .form-control:focus {
     border-color: #6C63FF;
     box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.25);
 }

 .btn-login {
     background: linear-gradient(135deg, #6C63FF, #3A0CA3);
     border: none;
     color: white;
     padding: 12px;
     border-radius: 12px;
     font-weight: 700;
     width: 100%;
     font-size: 15px;
     transition: 0.3s ease;
     box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
 }

 .btn-login:hover {
     transform: translateY(-2px);
     background: linear-gradient(135deg, #7d74ff, #4a15c7);
     box-shadow: 0 7px 20px rgba(0, 0, 0, 0.25);
 }

 .invalid-feedback {
     font-size: 13px;
 }