/* ========================================
   变量定义与基础重置
   ======================================== */

/* 全局重置 */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 根变量：定义主题色（浅色/深色模式） */
:root {
    --color-bg-body: #F0FFF0;       /* 蜜瓜色背景 */
    --color-bg-box: rgba(255, 255, 255, 0.6); /* 半透明白色盒子 */
    --color-text-main: #333333;    /* 深色文字 */
    --color-text-link: #87CEEB;    /* 天蓝色链接 */
    --color-text-accent: #E68FAC;  /* 粉色强调色 */
    --color-border: #333333;       /* 边框颜色 */
}

/* 深色模式变量 */
body.dark-mode {
    --color-bg-body: #1a1a1a;
    --color-bg-box: rgba(50, 50, 50, 0.8);
    --color-text-main: #f0f0f0;
    --color-text-link: #4da6ff;
    --color-text-accent: #ff99cc;
    --color-border: #cccccc;
}

/* 字体引入 */
@font-face {
    font-family: 'BoBoHei';
    src: url('../../../font/JingNanBoBoHei-Bold-2.ttf');
    font-display: swap;
}
@font-face {
    font-family: 'JunJunTi';
    src: url('../../../font/JingNanJunJunTi-JinNanJunJunTi-Bold-2.ttf');
    font-display: swap;
}
@font-face {
    font-family: 'Maiyuan';
    src: url('../../../font/Kingnammm-Maiyuan-II-Regular-2.ttf');
    font-display: swap;
}

/* Body 基础样式 */
body {
    margin: 0;
    padding: 10px;
    background-color: var(--color-bg-body);
    display: grid;
    grid-template-columns: 1fr 3fr;
    /* grid-template-rows: 1fr 8fr; */
    grid-template-areas:
        "nav     nav"
        "content main";
    gap: 10px;
    transition: background-color 0.3s ease;
    min-height: 100vh;
}

/* 所有卡片/容器的通用样式 */
.card {
    font-family: 'JunJunTi';
    background-color: var(--color-bg-box);
    color: var(--color-text-main);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: background-color 0.3s ease;
    border: none;
    border-radius: 10px;
    padding: 16px;
}

nav {
    grid-area: nav;
    display: flex;
    flex-direction: row;
    justify-content: start;
    align-items: center;
    height: 40px;
}

nav a {
    margin: 20px;
    cursor: pointer;
    text-decoration: none;
    color: var(--color-text-main);
    font-family: "BoBoHei";
}

#maincontent {
    grid-area: main;
    padding-left: 20px;
}

#contents {
    grid-area: content;
    position: fixed;
    top: 20dvh;
    left: 10px;              /* 或跟 body 的 padding 对齐 */
    width: calc(25% - 20px); /* 约等于 grid 第一列的宽度 */
    max-height: 75dvh;       /* 不超过屏幕高度 */
    overflow-y: auto;        /* 内容太长时目录内部滚动 */
}

#contents ul {
    list-style: none;
    padding-left: 0;
}

#contents li {
    margin: 8px 0;
}

#contents a {
    text-decoration: none;
    color: var(--color-text-main);
}

#contents a:hover {
    color: var(--color-text-link);
}

/* 代码块容器 */
.code-wrapper {
    position: relative;
    margin: 16px 0;
    border-radius: 8px;
    overflow: hidden;
}

.code-wrapper .copy-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 4px 10px;
    font-size: 12px;
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s;
    z-index: 10;
}

.code-wrapper:hover .copy-btn {
    opacity: 1;
}

.code-wrapper pre {
    margin: 0;
    padding: 16px;
    overflow-x: auto;
}

/* 交互组件 */
#theme-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 10px 20px;
    border: 2px solid var(--color-border);
    background-color: var(--color-bg-box);
    color: var(--color-text-main);
    border-radius: 20px;
    cursor: pointer;
    font-family: 'Maiyuan';
    transition: all 0.3s ease;
    z-index: 100;
}

#theme-toggle:hover {
    background-color: var(--color-text-accent);
    color: #fff;
}

/* 代码框的样式 */
pre code,
code {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace !important;
}

/* 响应式：小屏幕自动变成单列 */
@media (max-width: 768px) {
    body {
        grid-template-columns: 1fr;
        grid-template-areas:
            "nav"
            "main"
            "content";
        padding: 10px;
        gap: 15px;
    }

    /* 导航栏：允许换行，高度自适应 */
    nav {
        height: auto;
        flex-wrap: wrap;
        padding: 10px 0;
    }

    nav a {
        margin: 8px 12px;
    }

    /* 主内容区：去掉左侧 padding */
    #maincontent {
        padding-left: 0;
    }

    /* 目录：取消 fixed 定位，回到文档流 */
    #contents {
        position: static;
        top: auto;
        /* 给目录加个卡片样式，和正文区分开 */
        background-color: var(--color-bg-box);
        border-radius: 10px;
        padding: 16px;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    }

    /* 目录里的列表紧凑一点 */
    #contents li {
        margin: 6px 0;
    }
}