body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #e0f7fa, #bbdefb);
    min-height: 100vh;
    margin: 0;
}
.form-control {
    border-radius: 8px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.form-control:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 8px rgba(59, 130, 246, 0.3);
}
.btn-primary {
    background: #3b82f6;
    border: none;
    border-radius: 8px;
    padding: 12px;
    font-weight: 600;
    transition: background 0.3s ease;
}
.btn-primary:hover {
    background: #1e3a8a;
}