body {
    background: #f8fafc;
    min-height: 100vh;
}
.signup-container {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.card {
    border-radius: 1.5rem;
    box-shadow: 0 8px 32px rgba(44,62,80,.09);
    border: none;
}
.form-label {
    font-weight: 500;
}
.form-control:focus {
    box-shadow: 0 0 0 0.15rem rgba(44,130,201,0.2);
    border-color: #2980b9;
}
.btn-primary {
    border-radius: 2rem;
    font-weight: 600;
    background: linear-gradient(90deg,#4662d1 60%,#3586c6 100%);
    border: none;
}
.btn-primary:focus, .btn-primary:hover {
    background: linear-gradient(90deg,#384a99 60%,#29627f 100%);
}
.signup-logo {
    max-width: 320px;
    margin: 0 auto 2rem;
}
.side-logo {
    max-width: 100%;
    border-radius: 2rem;
}
@media (max-width: 767px) {
    .signup-logo { max-width: 200px;}
}