/* pfs-social.css - Modern, namespaced styles with CSS variables */

/* CSS Variables for easy theming */
:root {
    --pfs-primary: #1877f2;
    --pfs-primary-hover: #1464c7;
    --pfs-success: #00c853;
    --pfs-success-hover: #00a844;
    --pfs-text-primary: #1a1a2e;
    --pfs-text-secondary: #666;
    --pfs-border: #e0e0e0;
    --pfs-bg: #ffffff;
    --pfs-overlay: rgba(0, 0, 0, 0.6);
    --pfs-shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.08);
    --pfs-shadow-lg: 0 20px 35px -10px rgba(0, 0, 0, 0.2);
    --pfs-radius-md: 12px;
    --pfs-radius-lg: 20px;
    --pfs-transition: all 0.25s ease;
}

/* Share Button Container */
.pfs-share-container {
    margin-bottom: 2rem;
    text-align: center;
}

.pfs-share-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--pfs-primary);
    color: white;
    border: none;
    padding: 12px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 40px;
    cursor: pointer;
    transition: var(--pfs-transition);
    box-shadow: var(--pfs-shadow-sm);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

.pfs-share-button:hover {
    background: var(--pfs-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(24, 119, 242, 0.25);
}

.pfs-icon {
    stroke: white;
}

/* Modal Backdrop */
.pfs-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--pfs-overlay);
    backdrop-filter: blur(8px);
    z-index: 100000;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.pfs-modal.pfs-active {
    display: flex;
}

.pfs-modal.pfs-visible {
    opacity: 1;
}

/* Modal Container */
.pfs-modal-container {
    background: var(--pfs-bg);
    border-radius: var(--pfs-radius-lg);
    width: 90%;
    max-width: 900px;
    max-height: 85vh;
    overflow: hidden;
    box-shadow: var(--pfs-shadow-lg);
    transform: scale(0.95);
    transition: transform 0.3s cubic-bezier(0.2, 0.9, 0.4, 1.1);
    display: flex;
    flex-direction: column;
}

.pfs-visible .pfs-modal-container {
    transform: scale(1);
}

/* Modal Header */
.pfs-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--pfs-border);
}

.pfs-modal-header h3 {
    margin: 0;
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--pfs-text-primary);
}

.pfs-modal-close {
    background: none;
    border: none;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    color: #999;
    transition: var(--pfs-transition);
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
}

.pfs-modal-close:hover {
    color: var(--pfs-text-primary);
    background: #f0f0f0;
}

/* Toolbar */
.pfs-toolbar {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--pfs-border);
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    background: #fafafa;
}

.pfs-toolbar button {
    background: transparent;
    border: 1px solid var(--pfs-border);
    padding: 8px 16px;
    border-radius: 30px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: var(--pfs-transition);
    color: var(--pfs-text-secondary);
}

.pfs-toolbar button:hover {
    background: #f0f0f0;
    border-color: #ccc;
}

.pfs-copy-link-btn {
    margin-left: auto;
    background: var(--pfs-primary) !important;
    border-color: var(--pfs-primary) !important;
    color: white !important;
}

.pfs-copy-link-btn:hover {
    background: var(--pfs-primary-hover) !important;
    transform: translateY(-1px);
}

/* Image Grid */
.pfs-image-grid {
    padding: 1.5rem;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 1.25rem;
    overflow-y: auto;
    flex: 1;
}

/* Image Card */
.pfs-image-card {
    position: relative;
    aspect-ratio: 1 / 1;
    border-radius: var(--pfs-radius-md);
    overflow: hidden;
    cursor: pointer;
    background: #f5f5f5;
    transition: var(--pfs-transition);
    border: 2px solid transparent;
}

.pfs-image-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--pfs-shadow-sm);
}

.pfs-image-card.pfs-selected {
    border-color: var(--pfs-primary);
}

.pfs-image-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Check Overlay */
.pfs-check-overlay {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 28px;
    height: 28px;
    background: var(--pfs-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--pfs-transition);
    color: white;
}

.pfs-image-card.pfs-selected .pfs-check-overlay {
    opacity: 1;
}

.pfs-check-overlay svg {
    width: 16px;
    height: 16px;
    stroke: white;
    stroke-width: 2.5;
}

/* Modal Footer */
.pfs-modal-footer {
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--pfs-border);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

.pfs-share-now-btn {
    background: var(--pfs-primary);
    color: white;
    border: none;
    padding: 10px 24px;
    border-radius: 40px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--pfs-transition);
    font-size: 0.95rem;
}

.pfs-share-now-btn:hover {
    background: var(--pfs-primary-hover);
    transform: translateY(-1px);
}

.pfs-share-now-btn.pfs-copied {
    background: var(--pfs-success);
}

.pfs-cancel-btn {
    background: transparent;
    border: 1px solid var(--pfs-border);
    padding: 10px 20px;
    border-radius: 40px;
    cursor: pointer;
    transition: var(--pfs-transition);
    color: var(--pfs-text-secondary);
}

.pfs-cancel-btn:hover {
    background: #f5f5f5;
}

/* Toast Notification */
.pfs-toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: #1a1a2e;
    color: white;
    padding: 12px 24px;
    border-radius: 50px;
    font-size: 0.9rem;
    z-index: 100001;
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
    font-weight: 500;
    box-shadow: var(--pfs-shadow-lg);
    white-space: nowrap;
}

.pfs-toast.pfs-show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Mobile Responsive */
@media (max-width: 640px) {
    .pfs-modal-container {
        width: 95%;
        max-height: 90vh;
    }
    
    .pfs-image-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 0.85rem;
        padding: 1rem;
    }
    
    .pfs-toolbar {
        padding: 0.85rem 1rem;
    }
    
    .pfs-toolbar button {
        padding: 6px 12px;
        font-size: 0.75rem;
    }
    
    .pfs-copy-link-btn {
        margin-left: 0;
    }
    
    .pfs-modal-header {
        padding: 1rem;
    }
    
    .pfs-toast {
        white-space: normal;
        text-align: center;
        max-width: 90%;
        font-size: 0.8rem;
    }
}

/* Empty State */
.pfs-empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--pfs-text-secondary);
}

.pfs-empty-state svg {
    margin-bottom: 1rem;
    opacity: 0.5;
}