/**
 * Loading Overlay Styles
 * 
 * Premium animated loading overlay for document generation/preview.
 * Include this CSS in any page that uses the loading overlay.
 */

/* Loading Overlay Container */
.loading-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.loading-overlay.show {
    display: flex;
    animation: overlayFadeIn 0.3s ease-out forwards;
}

@keyframes overlayFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Content Card */
.loading-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2.5rem 3rem;
    background: white;
    border-radius: 1.5rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    animation: contentSlideUp 0.4s ease-out forwards;
}

@keyframes contentSlideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Spinner Ring */
.spinner-ring {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    border: 4px solid #f1f5f9;
    border-top-color: #f97316;
    border-right-color: #8b5cf6;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Text Styles */
.loading-text {
    margin-top: 1.5rem;
    font-size: 1.125rem;
    font-weight: 600;
    color: #1e293b;
}

.loading-subtext {
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: #64748b;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}