body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 20px;
    background-color: #f0f0f0;
    color: #333;
}

h1, h2 {
    color: #555;
}

.taggable-item {
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: relative; /* Important for positioning palette and button */
}

.item-tags {
    display: flex;
    gap: 6px; /* Spacing between tags on an item */
    margin-top: 10px;
    flex-wrap: wrap;
    min-height: 22px; 
    padding-bottom: 5px; /* Space for tags before item content if any */
}

.color-tag-option {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid transparent;
    transition: transform 0.1s ease-out, border-color 0.1s ease, box-shadow 0.1s ease;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
    display: inline-block; /* Allow them to sit in the item-color-palette */
}

.color-tag-option:hover {
    transform: scale(1.15);
    border-color: #aaa;
}

/* Style for tags applied to items */
.applied-tag {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: inline-flex; /* To center the X mark */
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(0,0,0,0.1);
    box-shadow: 0 1px 1px rgba(0,0,0,0.05);
    position: relative; /* For positioning the X mark */
    cursor: default; /* Default cursor, X will have its own */
    transition: transform 0.1s ease-out;
}

.applied-tag:active {
    transform: scale(0.9); /* Feedback for touch removal */
}

.remove-tag-mark {
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    cursor: pointer;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background-color: rgba(0,0,0,0.5);
    opacity: 0.8;
    transition: opacity 0.1s ease, background-color 0.1s ease;
}

.x-icon {
    display: block;
}

.remove-tag-mark:hover {
    opacity: 1;
    background-color: rgba(0,0,0,0.7);
}

/* Item-specific add tag button */
.item-add-tag-button {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: #f0f0f0;
    border: 1px solid #ccc;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #555;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
    transition: background-color 0.2s, transform 0.1s, box-shadow 0.2s, color 0.2s;
    padding: 0;
}

.plus-icon {
    display: block;
}

.item-add-tag-button:hover {
    background-color: #e0e0e0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.15);
}

.item-add-tag-button:active,
.item-add-tag-button.palette-active {
    background-color: #007AFF;
    color: white;
    box-shadow: 0 1px 3px rgba(0,122,255,0.4);
    transform: scale(0.95);
}

/* Item-specific color palette */
.item-color-palette {
    display: none; /* Hidden by default */
    position: absolute;
    top: 45px; /* Below the add button */
    right: 10px;
    background-color: #ffffff;
    border: 1px solid #ccc;
    border-radius: 6px;
    padding: 8px;
    box-shadow: 0 3px 8px rgba(0,0,0,0.15);
    z-index: 100; /* Ensure it's on top */
    gap: 8px;
    
}

.item-color-palette.active {
    display: flex; /* Show when active */
}

/* Touch-friendly enhancements (some already integrated above) */
@media (hover: none) {
    .color-tag-option {
        width: 32px;
        height: 32px;
    }
    .applied-tag {
        width: 20px;
        height: 20px;
    }
    /* The X mark for removal on hover is not applicable on touch-only, as touch directly removes */
    .remove-tag-mark {
        /* On touch devices, direct tap removes the tag, so X is primarily for mouse */
        width: 16px;
        height: 16px;
    }
    .x-icon {
        width: 12px;
        height: 12px;
    }
    .item-add-tag-button {
        width: 34px;
        height: 34px;
    }
    .plus-icon {
        width: 20px;
        height: 20px;
    }
    .item-color-palette {
        padding: 10px;
        gap: 10px;
    }
}