body {
    background-color: #f8f9fa;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.card {
    border-radius: 15px;
    border: none;
    background-color: rgba(255, 255, 255, 0.9);
}

.form-control, .form-select {
    border-radius: 10px;
    transition: box-shadow 0.3s ease-in-out;
}

.form-control:focus, .form-select:focus {
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

.btn-primary {
    border-radius: 10px;
    padding: 10px 20px;
    font-size: 1.1rem;
    transition: all 0.3s ease-in-out;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.invalid-feedback {
    font-size: 0.875rem;
    color: #dc3545;
    margin-top: 0.25rem;
}

@media (max-width: 768px) {
    .card-body {
        padding: 2rem;
    }
}

/* Accessibility Enhancements */
.form-control:focus, .form-select:focus {
    outline: 2px solid #007bff;
    outline-offset: 2px;
}

/* Animation for form fields */
.form-control, .form-select {
    transition: all 0.3s ease-in-out;
}

.form-control:focus, .form-select:focus {
    transform: translateY(-2px);
}

/* Error state styling */
.form-control.is-invalid, .form-select.is-invalid {
    border-color: #dc3545;
    padding-right: calc(1.5em + 0.75rem);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23dc3545'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/%3e%3ccircle cx='6' cy='8.2' r='.6' fill='%23dc3545' stroke='none'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right calc(0.375em + 0.1875rem) center;
    background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
}

.form-control.is-invalid:focus, .form-select.is-invalid:focus {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.25);
}

/* Background enhancement */
body {
    background-image: linear-gradient(120deg, #84fab0 0%, #8fd3f4 100%);
    background-attachment: fixed;
}