.surprise-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding-bottom: 100px;
}

.gift-box {
    position: relative;
    width: 150px;
    height: 150px;
    cursor: pointer;
    transition: transform 0.3s;
}

.box {
    width: 100%;
    height: 120px;
    background: var(--primary);
    position: absolute;
    bottom: 0;
    border-radius: 10px;
    box-shadow: 0 0 30px rgba(255, 30, 30, 0.4);
}

.box::after {
    content: '';
    position: absolute;
    width: 30px;
    height: 100%;
    background: #000;
    left: 60px;
}

.lid {
    width: 170px;
    height: 40px;
    background: #cc0000;
    position: absolute;
    top: 10px;
    left: -10px;
    border-radius: 5px;
    z-index: 5;
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.lid::after {
    content: '';
    position: absolute;
    width: 30px;
    height: 100%;
    background: #000;
    left: 70px;
}

.gift-box.open .lid {
    transform: translateY(-100px) rotate(-15deg);
}

.hidden {
    display: none;
    opacity: 0;
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    padding: 30px;
    border-radius: var(--border-radius);
    margin-top: 40px;
    text-align: center;
    max-width: 90%;
}

.pop-in {
    display: block;
    animation: popIn 0.5s forwards;
}

@keyframes popIn {
    from {
        opacity: 0;
        transform: scale(0.5);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}