body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.card {
    border-radius: 10px;
    border: none;
}

.card-header {
    border-radius: 10px 10px 0 0 !important;
    padding: 20px;
}

.card-body {
    padding: 30px;
}

.form-control {
    border-radius: 5px;
    padding: 10px;
}

.form-control:focus {
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
    border-color: #667eea;
}

.btn {
    border-radius: 5px;
    padding: 10px 20px;
    font-weight: 500;
}

.btn-primary {
    background-color: #667eea;
    border: none;
}

.btn-primary:hover {
    background-color: #5568d3;
}

.btn-success {
    background-color: #48bb78;
    border: none;
}

.btn-success:hover {
    background-color: #38a169;
}

.alert {
    border-radius: 5px;
    margin-bottom: 20px;
}

a {
    color: #667eea;
    text-decoration: none;
}

a:hover {
    color: #5568d3;
    text-decoration: underline;
}

.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

#viewMode strong {
    color: #4a5568;
    display: inline-block;
    width: 150px;
}

#viewMode span {
    color: #2d3748;
}