.reward-header {
        background: linear-gradient(135deg, #F8F5FA, #ffffff);
        border-radius: 24px;
        padding: 40px 20px;
        margin-bottom: 40px;
        border: 1px solid rgba(138, 100, 179, 0.15);
        box-shadow: 0 10px 30px rgba(138, 100, 179, 0.05);
        text-align: center;
        position: relative;
        overflow: hidden;
    }
    .reward-header::before {
        content: '\f51e';
        font-family: 'Font Awesome 6 Free';
        font-weight: 900;
        position: absolute;
        font-size: 200px;
        color: rgba(255, 193, 7, 0.05);
        top: -50px;
        right: -20px;
        transform: rotate(-15deg);
    }
    
    .point-display {
        font-size: 4rem;
        font-weight: 800;
        background: linear-gradient(135deg, #ffc107, #ff9800);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        line-height: 1;
        margin: 15px 0;
    }

    .reward-card {
        border-radius: 16px;
        border: 1px solid rgba(138, 100, 179, 0.12) !important;
        transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        background: #FDFBFF;
        display: flex;
        flex-direction: column;
        height: 100%;
        overflow: hidden;
    }
    .reward-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 15px 30px rgba(255, 193, 7, 0.15) !important;
        border-color: rgba(255, 193, 7, 0.3) !important;
    }
    
    .reward-img-wrapper {
        background-color: #f8f9fa;
        border-bottom: 1px dashed rgba(138, 100, 179, 0.2);
        overflow: hidden;
        position: relative;
    }
    .reward-card img {
        object-fit: cover;
        aspect-ratio: 4/3;
        width: 100%;
        transition: transform 0.5s ease;
    }
    .reward-card:hover img { transform: scale(1.08); }

    .btn-warning-custom {
        background: linear-gradient(135deg, #ffc107, #ff9800);
        color: white; border: none; font-weight: 700;
    }
    .btn-warning-custom:hover {
        background: linear-gradient(135deg, #ffb300, #f57c00);
        color: white; transform: translateY(-2px); box-shadow: 0 5px 15px rgba(255, 152, 0, 0.3);
    }
    .btn-disabled { background: #e9ecef; color: #adb5bd; cursor: not-allowed; }