body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    background-color: #f5f5f5;
}

.prototype-container {
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 16px;
    transition: transform 0.3s;
}

.prototype-container:hover {
    transform: translateY(-5px);
}

.iphone-frame {
    width: 375px;
    height: 812px;
    background-color: white;
    border-radius: 40px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    border: 1px solid #e0e0e0;
    margin: 0 auto;
}

.iphone-status-bar {
    height: 44px;
    background-color: #000;
    position: relative;
    z-index: 10;
    border-top-left-radius: 40px;
    border-top-right-radius: 40px;
    padding: 0 22px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: white;
}

.iphone-status-bar:before {
    content: "";
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 148px;
    height: 28px;
    background-color: #000;
    border-radius: 18px;
}

iframe {
    width: 100%;
    height: calc(100% - 44px);
    border: none;
}

/* Animation for prototype containers */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.prototype-container {
    animation: fadeIn 0.5s ease-out forwards;
    opacity: 0;
}

.prototype-container:nth-child(1) { animation-delay: 0.1s; }
.prototype-container:nth-child(2) { animation-delay: 0.2s; }
.prototype-container:nth-child(3) { animation-delay: 0.3s; }
.prototype-container:nth-child(4) { animation-delay: 0.4s; }
.prototype-container:nth-child(5) { animation-delay: 0.5s; }
.prototype-container:nth-child(6) { animation-delay: 0.6s; }
.prototype-container:nth-child(7) { animation-delay: 0.7s; }
.prototype-container:nth-child(8) { animation-delay: 0.8s; }
.prototype-container:nth-child(9) { animation-delay: 0.9s; }

/* Responsive adjustments */
@media (max-width: 1200px) {
    .iphone-frame {
        width: 320px;
        height: 690px;
    }
}

@media (max-width: 768px) {
    .iphone-frame {
        width: 290px;
        height: 630px;
    }
}