body.page-submit {
    padding: 0 !important;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.portal-container {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding-top: 80px;
}

.portal-box {
    width: 90%;
    max-width: 500px;
    padding: 30px;
    margin: 0 auto;
}

.portal-preview-box {
    background: rgba(0, 0, 0, 0.5);
    border: 3px solid #000;
    border-radius: 12px;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.portal-colors {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 10px;
}

.p-color {
    width: 36px;
    height: 36px;
    border-radius: 6px;
    border: 3px solid #000;
    box-shadow: 2px 3px 0px rgba(0,0,0,0.4);
}

@keyframes spin { 100% { transform: rotate(360deg); } }
.loading-spinner {
    animation: spin 1s linear infinite;
    width: 60px;
    margin: 10px auto;
    display: none;
}