/* Loading Screen Styles - License Zone Store */
#loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

#loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loading-logo {
    width: 120px;
    height: 120px;
    margin-bottom: 2rem;
    animation: logoFloat 2s ease-in-out infinite;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.3));
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1.5rem;
}

.loading-text {
    color: white;
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    animation: fadeInOut 1.5s ease-in-out infinite;
    letter-spacing: 0.5px;
}

.powered-by {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9rem;
    font-weight: 400;
    margin-top: 1rem;
    letter-spacing: 0.3px;
}

.version-text {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.75rem;
    font-weight: 300;
    letter-spacing: 2px;
    font-family: 'Courier New', monospace;
    margin: 0;
}

/* Animations */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes logoFloat {
    0%, 100% { 
        transform: translateY(0px); 
    }
    50% { 
        transform: translateY(-20px); 
    }
}

@keyframes fadeInOut {
    0%, 100% { 
        opacity: 0.6; 
    }
    50% { 
        opacity: 1; 
    }
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .loading-logo {
        width: 100px;
        height: 100px;
    }

    .loading-spinner {
        width: 50px;
        height: 50px;
    }

    .loading-text {
        font-size: 1rem;
    }

    .powered-by {
        font-size: 0.85rem;
    }

    .version-text {
        font-size: 0.65rem;
        bottom: 15px;
        letter-spacing: 0.5px;
    }
}