/* Collage Maker Styles */
.collage-upload {
    text-align: center;
    padding: 40px;
    border: 3px dashed #667eea;
    border-radius: 15px;
    background: #f8f9ff;
    margin-bottom: 30px;
    transition: all 0.3s;
}

.collage-upload:hover {
    background: #edf2ff;
    border-color: #4c51bf;
}

.collage-upload i {
    font-size: 4rem;
    color: #667eea;
    margin-bottom: 15px;
}

.collage-upload h3 {
    margin: 10px 0;
    color: #333;
}

.collage-upload p {
    color: #666;
    margin-bottom: 20px;
}

/* Toolbar */
.toolbar {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    margin-bottom: 25px;
}

.toolbar h3 {
    margin-bottom: 20px;
    color: #444;
    display: flex;
    align-items: center;
    gap: 10px;
}

.toolbar-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.tool-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.tool-group label {
    font-weight: 600;
    color: #555;
    font-size: 0.95rem;
}

.layout-options {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.layout-btn {
    padding: 8px 15px;
    background: #e9ecef;
    border: 2px solid #dee2e6;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 600;
}

.layout-btn:hover {
    background: #dee2e6;
}

.layout-btn.active {
    background: #667eea;
    color: white;
    border-color: #5a67d8;
}

/* Canvas Preview */
.preview-area {
    position: relative;
    background: #f8f9fa;
    border-radius: 12px;
    min-height: 500px;
    margin-bottom: 25px;
    overflow: hidden;
    border: 2px solid #e9ecef;
}

#collageCanvas {
    display: block;
    max-width: 100%;
    max-height: 500px;
    margin: 0 auto;
}

.canvas-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #adb5bd;
}

.canvas-placeholder i {
    font-size: 5rem;
    margin-bottom: 15px;
    opacity: 0.5;
}

/* Thumbnails */
.thumbnails-container {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.thumbnails-container h3 {
    margin-bottom: 15px;
    color: #444;
    display: flex;
    align-items: center;
    gap: 10px;
}

.thumbnails {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    min-height: 120px;
}

.thumbnail-item {
    position: relative;
    width: 100px;
    height: 100px;
    border-radius: 10px;
    overflow: hidden;
    border: 3px solid #dee2e6;
    cursor: move;
    transition: all 0.2s;
}

.thumbnail-item:hover {
    border-color: #667eea;
    transform: translateY(-3px);
}

.thumbnail-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.thumbnail-remove {
    position: absolute;
    top: 5px;
    right: 5px;
    background: rgba(255, 0, 0, 0.8);
    color: white;
    border: none;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
}

/* Responsive */
@media (max-width: 768px) {
    .toolbar-grid {
        grid-template-columns: 1fr;
    }
    
    .preview-area {
        min-height: 300px;
    }
    
    .thumbnail-item {
        width: 80px;
        height: 80px;
    }
}

/* Small button for border controls */
.btn-small {
    padding: 5px 10px;
    background: #e9ecef;
    border: 1px solid #dee2e6;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s;
}

.btn-small:hover {
    background: #dee2e6;
}