/* ==================== APP-SPECIFIC STYLES ==================== */
.app-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

.editor-layout {
    display: grid;
    grid-template-columns: 350px 1fr; /* Fixed sidebar, flexible canvas area */
    gap: var(--spacing-lg);
    align-items: start;
}

.main-controls {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.app-title-header {
    text-align: center;
    color: var(--text-primary);
    font-size: var(--font-size-3xl);
    font-weight: 800;
    margin-bottom: var(--spacing-xs);
}

.app-subtitle-header {
    text-align: center;
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.header-meta {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}
.tool-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
}

.meme-editor-layout {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: var(--spacing-lg);
    align-items: start;
}
.tool-tab-btn {
    padding: 12px 24px;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: var(--font-size-base);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.tool-tab-btn:hover {
    color: var(--accent-color);
    background: var(--bg-tertiary);
}

.tool-tab-btn.active {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
}

.tool-container {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden; /* Ensures child panels don't break the border radius */
}

.tool-panel {
    display: none;
}

.tool-panel.active {
    display: block;
}

.controls, .tool-controls-panel {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    max-height: 80vh;
    overflow-y: auto;
}

.upload-panel {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.controls h2, .tool-controls-panel h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    text-align: left;
    margin-bottom: 0;
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

.controls input, .controls select, .upload-panel input {
    width: 100%;
    padding: 10px;
    background: var(--bg-primary);
    color: var(--text-primary);
    box-sizing: border-box;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    font-size: 1rem;
}

.controls button {
    background-color: var(--accent-color);
    color: white;
    border: none;
    cursor: pointer;
    padding: 12px;
    font-weight: bold;
    border-radius: var(--radius-sm);
    transition: background-color 0.2s;
}

/* Style for color inputs */
.controls input[type="color"] {
    padding: 2px;
    height: 40px;
}

.slider {
    flex-grow: 1;
}
.slider-value {
    width: 70px !important;
}

.control-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.control-group label {
    flex-basis: 100px;
}

.action-buttons-group {
    display: flex;
    gap: 10px;
    margin-top: var(--spacing-sm);
}

.action-btn.secondary-action {
    flex-grow: 1;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.action-btn.secondary-action:hover:not(:disabled) {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: white;
}

/* --- Watermark Section --- */
.watermark-type-selector {
    display: flex;
    gap: var(--spacing-md);
    background: var(--bg-tertiary);
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
}
.watermark-type-selector input[type="radio"] {
    display: none; /* Hide the default radio button */
}

.watermark-type-selector label {
    flex-grow: 1;
    text-align: center;
    padding: 8px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background-color 0.2s;
}

/* --- New Upload Section Styles --- */
.upload-options {
    display: flex;
    align-items: center;
    gap: 10px;
}

.upload-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 15px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s ease;
    flex-shrink: 0; /* Prevent button from shrinking */
}

.upload-btn:hover {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.small-upload-btn {
    padding: 8px 12px;
    width: 100%;
}

.file-name-display {
    flex-grow: 1;
    font-size: 0.85rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    background: var(--bg-primary);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.url-input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.url-input-group svg {
    position: absolute;
    left: 12px;
    color: var(--text-secondary);
}

.url-input-group input {
    padding-left: 40px; /* Make space for the icon */
}

.upload-hint {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-align: center;
    margin-top: -5px;
}
.canvas-container {
    padding: 10px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    /* Allow canvas container to grow and shrink */    
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 0; /* Allows the container to shrink below its content's intrinsic size */
    min-height: 300px; /* Set a minimum height to prevent collapse */
}
.canvas-wrapper {
    position: relative; /* Needed for positioning the clear button */
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}
#memeCanvas {
    border: 2px dashed var(--border-color);
    cursor: grab;
    display: block;
    /* Make canvas responsive within its container */
    max-width: 100%; 
    max-height: 70vh; /* Set a max-height to prevent huge vertical overflow */
    height: auto;
    width: auto;
    object-fit: contain;
}
.clear-image-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    z-index: 10;
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    font-size: 24px;
    line-height: 32px;
    text-align: center;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.2s ease, background 0.2s ease;
    display: none; /* Hidden by default, shown via JS */
}
.clear-image-btn:hover {
    background: var(--danger-color);
    opacity: 1;
}
.tool-controls-panel {
    max-width: 350px;
    margin: 0 auto;
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* Responsive adjustments for the new layout */
@media (max-width: 1024px) {
    .editor-layout {
        grid-template-columns: 1fr; /* Stack controls on top of canvas */
    }

    .main-controls, .canvas-container {
        max-width: 700px; /* Limit width on tablet/mobile for better readability */
        margin-left: auto;
        margin-right: auto;
    }
}

/* Responsive adjustments for the new layout */
@media (max-width: 1024px) {
    .editor-layout {
        grid-template-columns: 1fr; /* Stack controls on top of canvas */
    }

    .main-controls, .canvas-container {
        max-width: 700px; /* Limit width on tablet/mobile for better readability */
        margin-left: auto;
        margin-right: auto;
    }
}