/* ===== 基础变量 ===== */
:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #111;
    --border-color: #222;
    --text-primary: #e0e0e0;
    --text-secondary: #888;
    --text-tertiary: #666;
    --accent: #4ade80;
    --hover-bg: #1a1a1a;
    --hover-border: #333;
}

/* ===== 重置样式 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: ui-monospace, Monaco, "Cascadia Code", monospace;
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: opacity 0.3s;
}

a:hover {
    opacity: 0.7;
}

/* ===== 布局 ===== */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 80px 20px;
}

/* ===== 头部 ===== */
.header {
    text-align: center;
    margin-bottom: 60px;
}

.avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    border: 3px solid var(--border-color);
    margin-bottom: 20px;
}

.header h1 {
    font-size: 2em;
    font-weight: 300;
    letter-spacing: 4px;
    margin-bottom: 10px;
}

.bio {
    color: var(--text-secondary);
    font-size: 0.9em;
}

/* ===== 导航 ===== */
.nav {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.nav a {
    color: var(--text-tertiary);
    font-size: 0.9em;
}

/* ===== 区块 ===== */
.section {
    margin-bottom: 50px;
}

.section h2 {
    font-size: 0.8em;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

/* ===== 卡片 ===== */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 25px;
}

.card p {
    color: var(--text-secondary);
    font-size: 0.95em;
}

/* ===== 技能标签 ===== */
.skills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill {
    background: var(--hover-bg);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 0.85em;
    color: var(--text-primary);
}

/* ===== 项目卡片 ===== */
.projects {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.project-card {
    background: var(--hover-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    transition: all 0.3s;
}

.project-card:hover {
    border-color: var(--accent);
}

.project-card h3 {
    font-size: 1em;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.project-card p {
    font-size: 0.85em;
    color: var(--text-secondary);
}

/* ===== 链接 ===== */
.links {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.link {
    background: var(--hover-bg);
    border: 1px solid var(--border-color);
    padding: 12px 24px;
    border-radius: 4px;
    color: var(--text-secondary);
    font-size: 0.85em;
    transition: all 0.3s;
}

.link:hover {
    background: var(--bg-secondary);
    border-color: var(--hover-border);
    color: var(--text-primary);
}

/* ===== 页脚 ===== */
.footer {
    text-align: center;
    color: var(--text-tertiary);
    font-size: 0.8em;
    margin-top: 80px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

/* ===== 响应式 ===== */
@media (max-width: 600px) {
    .container {
        padding: 40px 15px;
    }
    
    .nav {
        gap: 20px;
    }
    
    .projects {
        grid-template-columns: 1fr;
    }
}

/* ===== 亮色主题 ===== */
[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #fafafa;
    --border-color: #e5e5e5;
    --text-primary: #1a1a1a;
    --text-secondary: #555;
    --text-tertiary: #888;
    --accent: #22c55e;
    --hover-bg: #f5f5f5;
    --hover-border: #ddd;
}

/* ===== 主题切换按钮 ===== */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all 0.3s;
    z-index: 1000;
}

.theme-toggle:hover {
    border-color: var(--accent);
    transform: scale(1.1);
}

/* ===== 图库 ===== */
.gallery {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.gallery-item {
    overflow: hidden;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.gallery-item:hover {
    transform: translateY(-3px);
}

.gallery-item img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    display: block;
}

/* ===== ICP备案 ===== */
.icp {
    margin-top: 10px;
}

.icp a {
    color: var(--text-tertiary);
    font-size: 0.75em;
}

.icp a:hover {
    color: var(--accent);
}

/* ===== 响应式图库 ===== */
@media (max-width: 600px) {
    .gallery {
        grid-template-columns: 1fr;
    }
}

/* ===== 技能和播放器并排 ===== */
#skills {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 20px;
}

#skills h2 {
    width: 100%;
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.music-player {
    flex-shrink: 0;
    border-radius: 8px;
    overflow: hidden;
}