/* Loading Overlay Styles */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

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

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid #e5e7eb;
    border-top: 4px solid #3b82f6;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

.loading-text {
    font-size: 18px;
    font-weight: 600;
    color: #374151;
    text-align: center;
    margin-bottom: 10px;
}

.loading-subtext {
    font-size: 14px;
    color: #6b7280;
    text-align: center;
    max-width: 300px;
}

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

/* Dark mode styles */
body.dark-mode .loading-overlay {
    background: rgba(17, 24, 39, 0.95);
}

body.dark-mode .loading-spinner {
    border-color: #374151;
    border-top-color: #60a5fa;
}

body.dark-mode .loading-text {
    color: #f9fafb;
}

body.dark-mode .loading-subtext {
    color: #d1d5db;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .loading-spinner {
        width: 50px;
        height: 50px;
        border-width: 3px;
    }
    
    .loading-text {
        font-size: 16px;
    }
    
    .loading-subtext {
        font-size: 13px;
        max-width: 250px;
    }
}