/* Styles specific to the Compositional Grid Overlay Tool */

.overlay-generator-container {
    max-width: 1000px; /* Wider layout */
    margin: 1rem auto;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--bg-color); /* Use base background */
}

.overlay-generator-container h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.4rem;
    color: var(--text-color);
}

/* Upload Section */
.upload-section {
    text-align: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px dashed var(--border-color);
}
#drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    padding: 2rem 1rem;
    margin-bottom: 0.5rem;
    cursor: pointer;
    transition: border-color 0.3s ease, background-color 0.3s ease;
}
#drop-zone p { margin-bottom: 0.2rem; color: var(--text-color); opacity: 0.9; pointer-events: none; }
#drop-zone small { color: var(--label-text); font-size: 0.9rem; pointer-events: none;}
#drop-zone.drag-over {
    border-color: var(--accent-color);
    background-color: rgba(0, 123, 255, 0.05);
}
body.dark-mode #drop-zone.drag-over { background-color: rgba(102, 191, 255, 0.1); }
#file-input { display: none; }
.file-label {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--accent-color);
    color: var(--bg-color-light);
    border: none; border-radius: 5px; cursor: pointer;
    transition: opacity 0.2s ease; font-weight: 500; margin-top: 0.5rem;
}
body.dark-mode .file-label { color: var(--bg-color-dark); }
.file-label:hover { opacity: 0.9; }
#upload-status {
    color: var(--error-text); font-size: 0.85rem;
    margin-top: 0.5rem; min-height: 1.2em;
}

/* Controls and Preview Area */
#controls-and-preview {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap; /* Allow wrapping */
    margin-top: 1.5rem;
}
#controls-and-preview.hidden { display: none; }

.controls-area {
    flex: 1; /* Takes less space */
    min-width: 250px;
    max-width: 300px;
    display: flex;
    flex-direction: column;
    gap: 1.2rem; /* Space between control groups */
}

.preview-area {
    flex: 3; /* Takes more space */
    min-width: 300px;
    background-color: var(--preview-bg); /* BG around the image */
    padding: 1rem;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Controls Styling */
.control-group label {
    display: block;
    margin-bottom: 0.4rem;
    font-weight: 500;
    color: var(--label-text);
    font-size: 0.9rem;
}
.control-group select,
.control-group input[type="color"],
.control-group input[type="range"] {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.95rem;
    background-color: var(--bg-color);
    color: var(--text-color);
    box-sizing: border-box; /* Ensure padding is included in width */
}
.control-group input[type="color"] {
    height: 40px; /* Specific height for color picker */
    padding: 0.2rem; /* Adjust padding */
}
.control-group input[type="range"] {
    padding: 0; /* Range inputs don't need vertical padding */
    cursor: pointer;
    accent-color: var(--accent-color);
}
.control-group span { /* For slider value display */
    font-weight: bold;
    color: var(--accent-color);
    margin-left: 5px;
}
body.dark-mode .control-group span { color: var(--accent-color-dark); }


.control-button.download {
    width: 100%;
    padding: 0.7rem 1rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: 5px;
    border: none;
    cursor: pointer;
    transition: opacity 0.2s;
    background-color: #28a745; /* Green for download */
    color: white;
    text-align: center;
    margin-top: 0.5rem; /* Space above download button */
}
.control-button.download:hover {
    opacity: 0.9;
}


/* Image Display Area */
#image-display-wrapper {
    position: relative; /* Crucial for positioning canvas overlay */
    max-width: 100%;
    max-height: 70vh; /* Limit height */
    display: inline-block; /* Shrink wrap the image */
    line-height: 0; /* Prevent extra space below image */
}

#uploaded-image-preview {
    display: block;
    max-width: 100%;
    max-height: 70vh; /* Should match wrapper */
    height: auto; /* Maintain aspect ratio */
    border-radius: 2px; /* Optional: slight rounding */
}

#overlay-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%; /* Make canvas fill the wrapper */
    height: 100%;
    pointer-events: none; /* Allow interaction with elements below */
    display: block; /* Ensure it behaves like a block */
}


/* Responsive */
@media (max-width: 768px) {
    #controls-and-preview {
        flex-direction: column;
    }
    .controls-area {
        max-width: 100%; /* Allow controls to take full width */
        order: 2; /* Move controls below preview on small screens */
        padding-top: 1.5rem;
        border-top: 1px dashed var(--border-color);
    }
     .preview-area {
        order: 1;
        padding: 0.5rem;
    }
    #image-display-wrapper,
    #uploaded-image-preview {
        max-height: 50vh; /* Reduce max height */
    }
}