.cell {
    width: 100px;
    height: 100px;
    border-left: 1px solid #666; /* Slightly lighter border for dark theme */
    border-top: 1px solid #666; /* Slightly lighter border for dark theme */
    float: left;
    background-color: #000;
    font-size: 0.7em;
    text-align: center;
    box-sizing: border-box; /* Ensure width/height include border */
}

.row {
    clear: both;
}

.symbol_0 {
    background-color: #000;
}
.symbol_1 {
    background-color: #0074D9; /* blue */
}
.symbol_2 {
    background-color: #FF4136; /* red */
}
.symbol_3 {
    background-color: #2ECC40; /* green */
}
.symbol_4 {
    background-color: #FFDC00; /* yellow */
}
.symbol_5 {
    background-color: #AAAAAA; /* grey */
}
.symbol_6 {
    background-color: #F012BE; /* fuschia */
}
.symbol_7 {
    background-color: #FF851B; /* orange */
}
.symbol_8 {
    background-color: #7FDBFF; /* teal */
}
.symbol_9 {
    background-color: #870C25; /* brown */
}


/*Symbol picker*/

.symbol_preview {
    width: 20px;
    height: 20px;
    float: left;
}

.grid_size_field {
    width: 50px;
}

.selected-symbol-preview {
    border: 2px solid orange;
}


/*Selectable*/

.ui-selected {
    background-image: url(/apps/img/black-twill.png), url(/apps/img/brushed-alum.png);
}
.ui-selectable-helper {
    border: 1px dotted #ddd;
    position: absolute;
    z-index: 1000;
}

/*Message display - Styled as bubbles */

#error_display, #info_display {
    position: fixed; /* Position relative to the viewport */
    bottom: 20px; /* Distance from the bottom */
    right: 20px; /* Distance from the right */
    padding: 10px 15px; /* Padding inside the bubble */
    border-radius: 8px; /* Rounded corners */
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3); /* Subtle shadow */
    z-index: 1001; /* Ensure it's above most other elements */
    max-width: 300px; /* Limit width */
    font-size: 14px;
    display: none; /* Initially hidden - JS will show them */
    opacity: 0.9; /* Slight transparency */
}

#error_display {
    background-color: #FF4136; /* Red background */
    color: white; /* White text */
    border: 1px solid #d9362d;
}

#info_display {
    background-color: #2ECC40; /* Green background */
    color: white; /* White text */
    border: 1px solid #25a235;
}