/* Styles pour les sidebars modernes */

/* Sidebar droite */
.right-sidebar {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 24px;
    height: fit-content;
    position: sticky;
    top: 100px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

/* Amis suggérés */
.suggested-friends {
    margin-bottom: 24px;
}

.friend-suggestion {
    display: flex;
    align-items: center;
    padding: 16px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    margin-bottom: 12px;
    transition: var(--transition);
    background: var(--bg-secondary);
}

.friend-suggestion:hover {
    background: var(--bg-hover);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.friend-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    margin-right: 16px;
    object-fit: cover;
    border: 3px solid var(--border-color);
    transition: var(--transition);
}

.friend-suggestion:hover .friend-avatar {
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.friend-info {
    flex: 1;
}

.friend-name {
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 15px;
    display: block;
    margin-bottom: 4px;
    transition: var(--transition);
}

.friend-name:hover {
    color: var(--primary-color);
    text-decoration: none;
}

.friend-mutual {
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 500;
}

.follow-btn {
    padding: 8px 16px;
    border: 2px solid var(--primary-color);
    border-radius: 20px;
    background: transparent;
    color: var(--primary-color);
    cursor: pointer;
    font-size: 13px;
    font-weight: 700;
    transition: var(--transition);
    white-space: nowrap;
}

.follow-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.follow-btn.following {
    background: var(--success-color);
    border-color: var(--success-color);
    color: white;
}

.follow-btn.following:hover {
    background: var(--danger-color);
    border-color: var(--danger-color);
}

/* Tendances */
.trending-topics {
    margin-bottom: 24px;
}

.trending-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    margin-bottom: 8px;
    transition: var(--transition);
    cursor: pointer;
    background: var(--bg-secondary);
    border: 1px solid transparent;
}

.trending-item:hover {
    background: var(--bg-hover);
    border-color: var(--primary-color);
    transform: translateX(4px);
}

.trending-hashtag {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 14px;
}

.trending-count {
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 600;
}

/* Photos récentes */
.recent-photos {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 20px;
}

.recent-photo {
    aspect-ratio: 1;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.recent-photo:hover {
    transform: scale(1.05);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.recent-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.recent-photo:hover img {
    transform: scale(1.1);
}

/* Amis en commun */
.mutual-friends {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mutual-friend {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: var(--radius-md);
    transition: var(--transition);
    cursor: pointer;
}

.mutual-friend:hover {
    background: var(--bg-hover);
    transform: translateX(4px);
}

.mutual-friend .friend-avatar {
    width: 40px;
    height: 40px;
    margin-right: 0;
}

.mutual-friend .friend-name {
    font-size: 14px;
    margin-bottom: 0;
}

/* Grille d'amis */
.friends-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

.friend-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 2px solid var(--border-color);
    transition: var(--transition);
    text-align: center;
}

.friend-item:hover {
    background: var(--bg-hover);
    border-color: var(--primary-color);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.friend-item .friend-avatar {
    width: 60px;
    height: 60px;
    margin-bottom: 12px;
    margin-right: 0;
}

.friend-item .friend-name {
    font-size: 15px;
    margin-bottom: 6px;
}

.friend-item .friend-mutual {
    font-size: 12px;
}

/* Grille de photos */
.photos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 12px;
}

.photo-item {
    aspect-ratio: 1;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    position: relative;
}

.photo-item:hover {
    transform: scale(1.05);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.photo-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.photo-item:hover img {
    transform: scale(1.1);
}

.photo-item::after {
    content: '👁️';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: var(--transition);
    font-size: 24px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
}

.photo-item:hover::after {
    opacity: 1;
}

/* Messages d'état */
.no-conversations,
.no-friends,
.no-photos {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
}

.no-conversations p,
.no-friends p,
.no-photos p {
    font-size: 16px;
    margin-bottom: 16px;
}

/* Animations */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.friend-suggestion,
.trending-item,
.mutual-friend {
    animation: slideInRight 0.3s ease-out;
}

/* Responsive */
@media (max-width: 1024px) {
    .main-layout {
        grid-template-columns: 280px 1fr 280px;
    }
}

@media (max-width: 768px) {
    .main-layout {
        grid-template-columns: 1fr;
    }
    
    .left-sidebar,
    .right-sidebar {
        position: static;
        margin-bottom: 20px;
    }
    
    .friend-suggestion {
        padding: 12px;
    }
    
    .friend-avatar {
        width: 40px;
        height: 40px;
        margin-right: 12px;
    }
    
    .recent-photos {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .photos-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
    
    .friends-grid {
        grid-template-columns: 1fr;
    }
}

/* Mode sombre */
@media (prefers-color-scheme: dark) {
    .friend-suggestion,
    .trending-item,
    .friend-item {
        background: #3a3b3c;
        border-color: #4a4b4c;
    }
    
    .friend-suggestion:hover,
    .trending-item:hover,
    .friend-item:hover {
        background: #4a4b4c;
        border-color: var(--primary-color);
    }
    
    .recent-photo,
    .photo-item {
        border-color: #4a4b4c;
    }
    
    .recent-photo:hover,
    .photo-item:hover {
        border-color: var(--primary-color);
    }
}