body {
    background: linear-gradient(135deg, #ffffff 0%, #666666 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.register-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.2);
    overflow: hidden;
    width: 100%;
    max-width: 500px;
}

.register-header {
    background: linear-gradient(90deg, #000000 0%, #444444 100%);
    color: rgb(255, 255, 255);
    padding: 10px 20px;
    text-align: center;
}

.register-body {
    padding: 30px;
}

.logo-register {
    max-width: 150px;
    margin-bottom: 15px;
}

.form-control:focus {
    border-color: #dfdede;
    box-shadow: 0 0 0 0.25rem rgba(0, 0, 0, 0.25);
}

.btn-register {
    background: linear-gradient(90deg, #000000 0%, #444444 100%);
    border: none;
    color: rgb(255, 255, 255);
    padding: 12px;
    font-weight: 600;
}

.btn-register:focus {
    box-shadow: 0 0 0 0.25rem rgb(255, 255, 255);
}

.btn-register:hover {
    background: linear-gradient(90deg, #000000 0%, #444444 100%);
    color: rgb(255, 255, 255);
}

.link-login {
    color: #000000;
    text-decoration: none;
    font-weight: 500;
}

.link-login:hover {
    text-decoration: underline;
}

.email-hint {
    background: #cececd;
    border-left: 4px solid #000000;
    padding: 10px;
    margin-bottom: 15px;
    border-radius: 4px;
    font-size: 0.9rem;
}

.email-hint i {
    color: #2e2e2e;
    margin-right: 8px;
}

.invalid-feedback {
    display: block;
}