/* Mobile Responsive */
@media (max-width: 768px) {
    nav {
        position: fixed;
        top: 20px;
        left: 20px;
        margin: 0;
        width: auto;
        padding: 10px 16px;
        border-radius: 99px;
        z-index: 1000;
    }

    .project-selector {
        position: fixed;
        top: 20px;
        right: 20px;
        margin: 0;
        text-align: center;
        z-index: 2000;
    }

    .showcase-container {
        padding-top: 100px;
    }

    .app-icon {
        width: 120px;
        height: 120px;
    }

    .app-description {
        padding: 30px 20px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .screenshots-grid {
        grid-template-columns: 1fr;
        justify-items: center;
    }

    .screenshot-card {
        text-align: center;
    }

    .action-buttons {
        flex-direction: column;
        align-items: center;
    }

    nav .back-btn {
        display: flex;
        width: auto;
        font-weight: 600;
    }
}