/**
 * MG2025 Theme - Collection Styles
 * Stili specifici per collezioni
 * Layout: sidebar info + gallery masonry
 */

/* ============================================
   COLLECTION LAYOUT
   ============================================ */

.mg2025-collection-detail {
    display: grid;
    grid-template-columns: 320px 1fr;
    min-height: 100vh;
    background: var(--mg-bg);
    color: var(--mg-text);
    gap: 0;
}

/* ============================================
   COLLECTION SIDEBAR
   ============================================ */

.mg2025-collection-sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    background: var(--mg-card);
    border-right: 1px solid var(--mg-border);
    padding: 0;
}

.mg2025-collection-info {
    padding: 32px 24px;
    background: var(--mg-card);
}

/* ============================================
   COLLECTION HEADER
   ============================================ */

.mg2025-collection-header {
    text-align: center;
    margin-bottom: 24px;
}

.mg2025-collection-cover {
    width: 120px;
    height: 120px;
    border-radius: 8px;
    object-fit: cover;
    border: 2px solid var(--mg-border);
    margin: 0 auto 16px auto;
    display: block;
}

.mg2025-collection-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--mg-text);
    margin: 0 0 8px 0;
    line-height: 1.3;
}

.mg2025-collection-subtitle {
    font-size: 16px;
    color: var(--mg-muted);
    margin: 0 0 16px 0;
}

.mg2025-collection-meta {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.mg2025-collection-meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--mg-muted);
    justify-content: center;
}

.mg2025-collection-meta-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.mg2025-collection-meta-text {
    flex: 1;
}

/* ============================================
   COLLECTION DESCRIPTION
   ============================================ */

.mg2025-collection-description {
    margin-bottom: 24px;
    padding: 20px 0;
    border-top: 1px solid var(--mg-border);
    border-bottom: 1px solid var(--mg-border);
    text-align: center;
}

.mg2025-collection-description p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--mg-text);
    margin: 0 0 12px 0;
}

.mg2025-collection-description p:last-child {
    margin-bottom: 0;
}

/* ============================================
   COLLECTION STATS
   ============================================ */

.mg2025-collection-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 24px;
    padding: 20px 0;
    border-top: 1px solid var(--mg-border);
    border-bottom: 1px solid var(--mg-border);
}

.mg2025-collection-stat {
    text-align: center;
}

.mg2025-collection-stat-number {
    display: block;
    font-size: 20px;
    font-weight: 700;
    color: var(--mg-text);
    margin-bottom: 4px;
}

.mg2025-collection-stat-label {
    font-size: 12px;
    color: var(--mg-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================
   COLLECTION ACTIONS
   ============================================ */

.mg2025-collection-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
}

.mg2025-collection-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    border: none;
    border-radius: 0;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 160ms ease-out;
    text-decoration: none;
    width: 100%;
}

.mg2025-collection-btn-like {
    background: var(--mg-primary);
    color: var(--mg-bg);
}

.mg2025-collection-btn-like:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.mg2025-collection-btn-like.liked {
    background: var(--mg-accent);
}

.mg2025-collection-btn-share {
    background: transparent;
    color: var(--mg-text);
    border: 1px solid var(--mg-border);
}

.mg2025-collection-btn-share:hover {
    background: var(--mg-hover);
}

.mg2025-collection-btn-follow {
    background: var(--mg-success);
    color: var(--mg-bg);
}

.mg2025-collection-btn-follow:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.mg2025-collection-btn-icon {
    width: 16px;
    height: 16px;
}

.mg2025-collection-btn-text {
    font-size: 14px;
}

/* ============================================
   COLLECTION TAGS
   ============================================ */

.mg2025-collection-tags {
    margin-bottom: 24px;
}

.mg2025-collection-tags-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--mg-text);
    margin: 0 0 12px 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-align: center;
}

.mg2025-collection-tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: center;
}

.mg2025-collection-tag {
    display: inline-block;
    padding: 4px 8px;
    background: var(--mg-hover);
    color: var(--mg-text);
    font-size: 12px;
    border-radius: 0;
    border: 1px solid var(--mg-border);
    text-decoration: none;
    transition: all 160ms ease-out;
}

.mg2025-collection-tag:hover {
    background: var(--mg-border);
    color: var(--mg-text);
}

/* ============================================
   COLLECTION AUTHOR
   ============================================ */

.mg2025-collection-author {
    margin-bottom: 24px;
    padding: 20px 0;
    border-top: 1px solid var(--mg-border);
    text-align: center;
}

.mg2025-collection-author-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--mg-text);
    margin: 0 0 12px 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.mg2025-collection-author-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.mg2025-collection-author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--mg-border);
}

.mg2025-collection-author-details {
    text-align: center;
}

.mg2025-collection-author-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--mg-text);
    margin: 0 0 4px 0;
}

.mg2025-collection-author-role {
    font-size: 12px;
    color: var(--mg-muted);
    margin: 0 0 8px 0;
}

.mg2025-collection-author-btn {
    padding: 8px 16px;
    background: transparent;
    color: var(--mg-text);
    border: 1px solid var(--mg-border);
    border-radius: 0;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 160ms ease-out;
    text-decoration: none;
}

.mg2025-collection-author-btn:hover {
    background: var(--mg-hover);
}

/* ============================================
   COLLECTION GALLERY
   ============================================ */

.mg2025-collection-gallery {
    padding: 32px;
    background: var(--mg-bg);
}

.mg2025-collection-gallery-container {
    width: 100%;
}

/* ============================================
   EMPTY STATE
   ============================================ */

.mg2025-collection-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    text-align: center;
    color: var(--mg-muted);
    padding: 40px 20px;
}

.mg2025-collection-empty-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.mg2025-collection-empty-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--mg-text);
    margin: 0 0 8px 0;
}

.mg2025-collection-empty-description {
    font-size: 14px;
    color: var(--mg-muted);
    margin: 0 0 20px 0;
}

.mg2025-collection-empty-btn {
    padding: 12px 24px;
    background: var(--mg-primary);
    color: var(--mg-bg);
    border: none;
    border-radius: 0;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 160ms ease-out;
    text-decoration: none;
    display: inline-block;
}

.mg2025-collection-empty-btn:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

/* ============================================
   RESPONSIVE LAYOUT
   ============================================ */

/* Desktop XL (≥1440px) */
@media (min-width: 1440px) {
    .mg2025-collection-detail {
        grid-template-columns: 340px 1fr;
    }
}

/* Tablet (768-991px) */
@media (min-width: 768px) and (max-width: 991px) {
    .mg2025-collection-detail {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
    }
    
    .mg2025-collection-sidebar {
        position: static;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--mg-border);
    }
    
    .mg2025-collection-gallery {
        padding: 20px;
    }
}

/* Mobile L (480-767px) */
@media (min-width: 480px) and (max-width: 767px) {
    .mg2025-collection-info {
        padding: 20px 16px;
    }
    
    .mg2025-collection-gallery {
        padding: 16px;
    }
    
    .mg2025-collection-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile S (<480px) */
@media (max-width: 479px) {
    .mg2025-collection-info {
        padding: 16px 12px;
    }
    
    .mg2025-collection-title {
        font-size: 20px;
    }
    
    .mg2025-collection-stats {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .mg2025-collection-gallery {
        padding: 12px;
    }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

.mg2025-collection-btn:focus {
    outline: 2px solid var(--mg-accent);
    outline-offset: 2px;
}

.mg2025-collection-tag:focus {
    outline: 2px solid var(--mg-accent);
    outline-offset: 2px;
}

.mg2025-collection-author-btn:focus {
    outline: 2px solid var(--mg-accent);
    outline-offset: 2px;
}

/* ============================================
   LOADING STATES
   ============================================ */

.mg2025-collection-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    color: var(--mg-muted);
    font-size: 14px;
}

.mg2025-collection-loading-spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--mg-border);
    border-top: 2px solid var(--mg-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 12px;
}

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