/* 设置页面主体字体 */
body {
    font-family: 'Roboto', sans-serif;
}

/* 设置容器样式 */
.container {
    /* 最大宽度为 1200px */
    max-width: 1200px;
    /* 水平居中 */
    margin: 0 auto;
    /* 内边距为 20px */
    padding: 20px;
}

/* 基础工具类 */
.flex {
    display: flex;
}

.flex-wrap {
    flex-wrap: wrap;
}

.justify-between {
    justify-content: space-between;
}

.justify-start {
    justify-content: flex-start;
}

.justify-end {
    justify-content: flex-end;
}

.justify-center {
    justify-content: center;
}

.items-center {
    align-items: center;
}

.gap-2 {
    gap: 0.5rem;
}

.gap-3 {
    gap: 0.75rem;
}

.gap-4 {
    gap: 1rem;
}

.mb-2 {
    margin-bottom: 0.5rem;
}

.mb-3 {
    margin-bottom: 0.75rem;
}

.mb-4 {
    margin-bottom: 1rem;
}

.ml-2 {
    margin-left: 0.5rem;
}

.py-1 {
    padding-top: 0.25rem;
    padding-bottom: 0.25rem;
}

.py-2 {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.px-2 {
    padding-left: 0.5rem;
    padding-right: 0.5rem;
}

.px-3 {
    padding-left: 0.75rem;
    padding-right: 0.75rem;
}

.px-4 {
    padding-left: 1rem;
    padding-right: 1rem;
}

.p-2 {
    padding: 0.5rem;
}

.p-4 {
    padding: 1rem;
}

.p-6 {
    padding: 1.5rem;
}

.text-3xl {
    font-size: 1.875rem;
    line-height: 2.25rem;
}

.text-xl {
    font-size: 1.25rem;
    line-height: 1.75rem;
}

.text-sm {
    font-size: 0.875rem;
    line-height: 1.25rem;
}

.font-bold {
    font-weight: 700;
}

.font-medium {
    font-weight: 500;
}

.rounded {
    border-radius: 0.25rem;
}

.rounded-md {
    border-radius: 0.375rem;
}

.rounded-lg {
    border-radius: 0.5rem;
}

.w-full {
    width: 100%;
}

.min-w-\[120px\] {
    min-width: 120px;
}

.min-w-\[180px\] {
    min-width: 180px;
}

.min-w-\[200px\] {
    min-width: 200px;
}

.w-64 {
    width: 16rem;
}

.flex-1 {
    flex: 1;
}

/* 最大宽度类 */
.max-w-sm {
    max-width: 24rem;
}

.max-w-md {
    max-width: 28rem;
}

/* 弹窗容器类 */
.modal-content {
    width: 90%;
    max-width: 320px;
}

.block {
    display: block;
}

.hidden {
    display: none;
}

.absolute {
    position: absolute;
}

.relative {
    position: relative;
}

.fixed {
    position: fixed;
}

.inset-0 {
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
}

.z-50 {
    z-index: 50;
}

/* 颜色类 */
.text-white {
    color: #fff;
}

.text-gray-500 {
    color: #6b7280;
}

.text-gray-700 {
    color: #374151;
}

.text-red-500 {
    color: #ef4444;
}

.text-blue-800 {
    color: #1e40af;
}

.bg-white {
    background-color: #fff;
}

.bg-black {
    background-color: #000;
}

.bg-opacity-50 {
    opacity: 0.5;
}

.bg-red-500 {
    background-color: #ef4444;
}

.bg-red-500:hover {
    background-color: #dc2626;
}

.bg-red-600 {
    background-color: #dc2626;
}

.bg-red-600:hover {
    background-color: #b91c1c;
}

.bg-red-700 {
    background-color: #b91c1c;
}

.bg-blue-500 {
    background-color: #3b82f6;
}

.bg-blue-500:hover {
    background-color: #2563eb;
}

.bg-green-500 {
    background-color: #10b981;
}

.bg-green-500:hover {
    background-color: #059669;
}

.bg-yellow-500 {
    background-color: #f59e0b;
}

.bg-yellow-500:hover {
    background-color: #d97706;
}

.bg-purple-500 {
    background-color: #8b5cf6;
}

.bg-purple-500:hover {
    background-color: #7c3aed;
}

.bg-orange-500 {
    background-color: #f97316;
}

.bg-orange-500:hover {
    background-color: #ea580c;
}

.bg-teal-500 {
    background-color: #14b8a6;
}

.bg-teal-500:hover {
    background-color: #0d9488;
}

.bg-pink-500 {
    background-color: #ec4899;
}

.bg-pink-500:hover {
    background-color: #db2777;
}

.bg-gray-100 {
    background-color: #f3f4f6;
}

.bg-gray-50 {
    background-color: #f9fafb;
}

.bg-blue-100 {
    background-color: #dbeafe;
}

/* 边框类 */
.border {
    border: 1px solid;
}

.border-gray-200 {
    border-color: #e5e7eb;
}

.border-gray-300 {
    border-color: #d1d5db;
}

.border-blue-300 {
    border-color: #93c5fd;
}

/* 阴影类 */
.shadow {
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
}

.shadow-md {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

/* 过渡类 */
.transition-all {
    transition: all 0.3s ease;
}

/* 设置图像选择器、控制按钮和颜色选择器的样式 */
.image-selector,
.controls,
.color-picker {
    /* 底部外边距为 20px */
    margin-bottom: 20px;
}

/* 设置画布容器样式 */
.canvas-container {
    /* 相对定位 */
    position: relative;
    /* 隐藏溢出内容 */
    overflow: hidden;
    /* 确保容器占满可用空间 */
    width: 100%;
    min-height: 400px;
    height: 60vh;
    max-height: 800px;
}

/* 设置绘图画布样式 */
#drawing-canvas {
    /* 边框为 1px 灰色实线 */
    border: 1px solid #ccc;
    /* 确保画布占满容器 */
    width: 100%;
    height: 100%;
    /* 鼠标指针样式 */
    cursor: crosshair;
}

/* 取色模式下的鼠标指针 */
#drawing-canvas.color-picking {
    cursor: crosshair;
}

/* 工具按钮样式 */
button {
    transition: all 0.2s ease;
}

/* 取色器按钮样式 */
#color-picker-btn {
    display: flex;
    align-items: center;
}

/* 提示文本样式 */
.tool-tip {
    position: absolute;
    background: rgba(0,0,0,0.7);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s;
    z-index: 10;
}

/* 特殊类 */
.bg-opacity-50 {
    background-color: rgba(0, 0, 0, 0.5);
}

.max-h-40 {
    max-height: 10rem;
}

.max-h-96 {
    max-height: 24rem;
}

.overflow-y-auto {
    overflow-y: auto;
}

.space-y-2 > * + * {
    margin-top: 0.5rem;
}

.space-y-2 > * {
    margin-bottom: 0.5rem;
}

/* 颜色选择器样式 */
input[type="color"] {
    -webkit-appearance: none;
    border: none;
    width: 32px;
    height: 32px;
}

input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 4px;
}

/* 滑块样式 */
input[type="range"] {
    width: 100%;
}

/* 图层面板样式 */
.layer-panel {
    width: 250px;
}

/* 图层项样式 */
.layer-item {
    transition: all 0.2s ease;
}

.layer-item:hover {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* 画笔类型选择器样式 */
#brush-type {
    min-width: 120px;
}

/* 填充设置面板样式 */
#fill-settings {
    background-color: #f3f4f6;
    padding: 1rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
}