/* ============================================
   个人主页样式 - 参考 FeiTwnd 设计
   纯静态 HTML/CSS/JS，无需构建工具
   ============================================ */

/* === 重置与基础 === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* === CSS 变量（亮色模式） === */
:root, [data-theme="light"] {
  --bg: #f5f5f7;
  --card-bg: #ffffff;
  --border: #e8e8ed;
  --text: #1d1d1f;
  --text-muted: #86868b;
  --hover-bg: #f0f0f5;
  --shadow: 0 4px 30px rgba(0, 0, 0, 0.06);
  --avatar-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
  --toggle-bg: #e8e8ed;
}

/* === 暗色模式 === */
[data-theme="dark"] {
  --bg: #1a1a1e;
  --card-bg: #242428;
  --border: #3a3a3e;
  --text: #f5f5f7;
  --text-muted: #a1a1a6;
  --hover-bg: #333338;
  --shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
  --avatar-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
  --toggle-bg: #3a3a3e;
}

/* === 全局样式 === */
html, body {
  height: 100%;
  width: 100%;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: "LXGW WenKai", "PingFang SC", -apple-system, BlinkMacSystemFont,
    "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", "Noto Sans SC",
    "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  transition: background-color 0.4s ease, color 0.4s ease;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* === 全屏居中容器 === */
.home-container {
  width: 100vw;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

/* === 卡片主体 === */
.card {
  width: 100%;
  max-width: 860px;
  padding: clamp(2.5rem, 6vw, 4.5rem);
  border-radius: 24px;
  background-color: var(--card-bg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  text-align: center;
  transition: all 0.4s ease;
  animation: cardIn 0.7s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  opacity: 0;
}

/* === 头像 === */
.avatar-container {
  width: 130px;
  height: 130px;
  margin: 0 auto 2rem;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--border);
  box-shadow: var(--avatar-shadow);
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.3s ease;
  animation: fadeUp 0.6s ease-out 0.15s forwards;
  opacity: 0;
}

.avatar-container:hover {
  transform: scale(1.08) rotate(2deg);
  border-color: var(--text-muted);
}

.avatar-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* === 昵称 === */
h1 {
  margin: 0 0 0.6rem;
  font-size: clamp(2rem, 5.5vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  animation: fadeUp 0.6s ease-out 0.3s forwards;
  opacity: 0;
}

/* === 个性签名 === */
.tagline {
  margin: 0 0 2.5rem;
  color: var(--text-muted);
  font-size: clamp(1rem, 2.5vw, 1.15rem);
  font-weight: 400;
  animation: fadeUp 0.6s ease-out 0.4s forwards;
  opacity: 0;
}

/* === 导航链接网格 === */
.links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 14px;
  margin-top: 1rem;
}

/* === 单个链接按钮 === */
.link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background-color: transparent;
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  font-size: 15px;
  transition: all 0.25s cubic-bezier(0.22, 1, 0.36, 1);
  animation: fadeUp 0.5s ease-out forwards;
  animation-delay: calc(var(--link-index, 0) * 0.06s + 0.5s);
  opacity: 0;
  cursor: pointer;
  user-select: none;
}

.link i {
  font-size: 18px;
  width: 22px;
  text-align: center;
  opacity: 0.7;
  transition: opacity 0.2s ease;
}

.link:hover {
  background-color: var(--hover-bg);
  border-color: var(--text-muted);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
}

.link:hover i {
  opacity: 1;
}

.link:active {
  transform: translateY(-1px);
}

/* === 页脚 === */
footer {
  margin-top: 3rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.8;
  animation: fadeUp 0.6s ease-out 0.9s forwards;
  opacity: 0;
}

.footer-info {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.4rem 0.8rem;
}

.footer-info a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px dotted currentColor;
  transition: border-color 0.2s ease;
}

.footer-info a:hover {
  border-bottom-style: solid;
}

.divider {
  opacity: 0.4;
}

/* === 暗色模式切换按钮 === */
.theme-toggle {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background-color: var(--card-bg);
  color: var(--text);
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  animation: fadeUp 0.5s ease-out 1s forwards;
  opacity: 0;
  z-index: 100;
}

.theme-toggle:hover {
  transform: scale(1.1) rotate(15deg);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.12);
}

/* === 动画关键帧 === */
@keyframes cardIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* === 响应式设计 === */
@media (max-width: 768px) {
  .home-container {
    padding: 1.5rem;
  }

  .card {
    padding: 2.5rem 2rem;
  }

  .links {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
}

@media (max-width: 480px) {
  .home-container {
    padding: 1rem;
    align-items: flex-start;
    padding-top: 2rem;
  }

  .card {
    padding: 2rem 1.5rem;
    border-radius: 18px;
  }

  .avatar-container {
    width: 100px;
    height: 100px;
  }

  .tagline {
    font-size: 0.95rem;
    margin-bottom: 1.8rem;
  }

  .links {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }

  .link {
    padding: 12px 10px;
    font-size: 14px;
    border-radius: 12px;
  }

  .theme-toggle {
    top: 1rem;
    right: 1rem;
    width: 38px;
    height: 38px;
    font-size: 16px;
  }
}