.promo-input-container {
    position: relative;
}

.promo-feedback-icon {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 18px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

    .promo-feedback-icon.show {
        opacity: 1;
    }

    .promo-feedback-icon.success {
        color: #28a745;
    }

    .promo-feedback-icon.error {
        color: #dc3545;
    }

.form-control.success {
    border-color: #28a745;
    background-color: #f8fff9;
}

.form-control.error {
    border-color: #dc3545;
    background-color: #fff8f8;
}

.loading-spinner {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

    .loading-spinner.show {
        opacity: 1;
    }

.price-update {
    transition: all 0.5s ease;
}

.price-highlight {
    background: #fff3cd;
    padding: 2px 6px;
    border-radius: 4px;
    animation: highlight 2s ease-out;
}

@keyframes highlight {
    0% {
        background: #28a745;
        color: white;
    }

    100% {
        background: #fff3cd;
        color: inherit;
    }
}

.discount-row {
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: all 0.5s ease;
}

    .discount-row.show {
        opacity: 1;
        max-height: 100px;
    }

.feedback-message {
    margin-top: 10px;
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 14px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

    .feedback-message.show {
        opacity: 1;
    }

    .feedback-message.success {
        background: #d4edda;
        color: #155724;
        border: 1px solid #c3e6cb;
    }

    .feedback-message.error {
        background: #f8d7da;
        color: #721c24;
        border: 1px solid #f5c6cb;
    }