/* === 核心变量 === */
:root {
  --bg-glass: rgba(255, 255, 255, 0.18);
  --border-glass: rgba(255, 255, 255, 0.25);
  --blur: blur(16px);
  --radius: 20px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  --accent: #8b5cf6;
  --text: #fff;
  --gap: 20px;
}

/* 深色模式 */
body.dark-mode {
  --bg-glass: rgba(0, 0, 0, 0.45);
  --border-glass: rgba(255, 255, 255, 0.1);
}

/* === 重置 === */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
  background: url('../assets/background.jpg') center/cover fixed;
  color: var(--text);
  min-height: 100vh;
  position: relative;
}
body::before {
  content: ''; position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.15); z-index: -1;
}

/* === 毛玻璃基类 === */
.glass {
  background: var(--bg-glass);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
}

/* === 顶部栏：仅背景 + 菜单按钮 === */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; height: 60px;
  display: flex; align-items: center;
  justify-content: flex-start;
  padding: 0 14px; z-index: 2000;
  background: var(--bg-glass);
  backdrop-filter: var(--blur);
  border-bottom: 1px solid var(--border-glass);
  overflow: hidden;
}

/* === 菜单按钮 === */
.menu-toggle, .theme-toggle {
  background: none; border: none; color: inherit;
  font-size: 1.3rem; cursor: pointer; padding: 8px;
  border-radius: 50%; transition: background 0.2s;
}
.menu-toggle:hover, .theme-toggle:hover { background: rgba(255,255,255,0.15); }

/* === 标题：绝对居中，永不移动 === */
.site-title {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  font-weight: 600;
  font-size: 1.1rem;
  white-space: nowrap;
  z-index: 2100;
  pointer-events: none;
  text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

/* === 右侧容器：绝对右对齐 === */
.topbar-right {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 2200;
}

/* === 搜索框（统一）=== */
.bing-search {
  display: flex;
  align-items: center;
  height: 44px;
  border-radius: 50px;
  overflow: hidden;
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  backdrop-filter: var(--blur);
  transition: all 0.3s ease;
  width: 300px;
}
.bing-search-input {
  flex: 1;
  padding: 0 16px;
  background: none;
  border: none;
  color: var(--text);
  font-size: 0.95rem;
  outline: none;
}
.bing-search-input::placeholder { color: rgba(255,255,255,0.7); }
.bing-search-btn {
  background: var(--accent);
  color: white;
  border: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.2s;
}
.bing-search-btn:hover { transform: scale(1.1); }

/* === 左侧菜单：桌面端 20% === */
.side-menu {
  position: fixed;
  top: 0;
  left: -20%;
  width: 20%;
  height: 100%;
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-right: 1px solid var(--border-glass);
  transition: left 0.3s ease;
  z-index: 1800;
  padding-top: 80px;
  will-change: left;
  box-sizing: border-box;
}
.side-menu.open { left: 0; }
.nav-link {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px; border-radius: 10px; color: var(--text);
  text-decoration: none; background: rgba(255,255,255,0.03);
  transition: 0.2s;
}
.nav-link:hover { background: rgba(255,255,255,0.1); transform: translateX(4px); }
.overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.45);
  opacity: 0; pointer-events: none; transition: opacity 0.3s; z-index: 1700;
}
.overlay.show { opacity: 1; pointer-events: all; }

/* === 主内容 === */
.container {
  display: grid; grid-template-columns: 320px 1fr;
  gap: var(--gap); max-width: 1300px; margin: 80px auto 40px;
  padding: 0 20px; position: relative; z-index: 1;
}

/* === 左侧栏 === */
.left-panel { display: flex; flex-direction: column; gap: var(--gap); }
.profile-card { text-align: center; }
.avatar { width: 100px; height: 100px; border-radius: 50%; border: 4px solid rgba(255,255,255,0.3); margin-bottom: 16px; }
h1 { font-size: 1.6rem; margin-bottom: 4px; }
.tagline { font-size: 0.95rem; opacity: 0.9; margin-bottom: 16px; }
.github-btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: #6e40c9; color: white; padding: 10px 20px;
  border-radius: 50px; text-decoration: none; font-weight: 600;
  transition: 0.3s;
}
.github-btn:hover { background: #5a32a3; transform: translateY(-2px); }
.stats {
  display: flex; justify-content: center; gap: 32px;
  margin: 24px 0; padding: 16px 0;
  border-top: 1px dashed rgba(255,255,255,0.3);
  border-bottom: 1px dashed rgba(255,255,255,0.3);
}
.stat .number { font-size: 1.5rem; font-weight: bold; display: block; }
.stat .label { font-size: 0.8rem; opacity: 0.8; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.tag {
  background: rgba(255,255,255,0.2); padding: 6px 12px;
  border-radius: 50px; font-size: 0.85rem; display: flex; align-items: center; gap: 6px;
}
.chart { width: 100%; border-radius: 12px; margin-top: 8px; opacity: 0.9; }

/* === 右侧栏 === */
.right-panel { display: flex; flex-direction: column; gap: var(--gap); }
.intro-card ul { list-style: none; line-height: 1.8; font-size: 0.95rem; }
.intro-card li:before { content: "•"; color: #a78bfa; margin-right: 8px; }
.repo-item {
  background: rgba(255,255,255,0.1); padding: 14px; border-radius: 12px;
  margin-bottom: 12px; display: flex; justify-content: space-between;
  align-items: center; transition: 0.3s;
}
.repo-item:hover { background: rgba(255,255,255,0.2); transform: translateX(4px); }
.repo-item a { color: #e0d6ff; text-decoration: none; font-weight: 500; }
.repo-item .meta { font-size: 0.8rem; opacity: 0.8; }
.repo-item .lang { font-size: 0.75rem; padding: 2px 6px; background: rgba(255,255,255,0.2); border-radius: 4px; }
.loading { text-align: center; opacity: 0.7; font-style: italic; }

/* === 签到区域：全局样式 === */
.search-area {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}
.sign-in-form {
  flex: 1;
}
.signin-input {
  width: 100%;
  box-sizing: border-box;
  padding: 10px 12px;
  font-size: 16px;
  border-radius: 6px;
  border: 1px solid #ccc;
  outline: none;
}
.signin-input:focus {
  border-color: #3b82f6;
}

/* 统计按钮：全局自定义样式（桌面 + 手机统一） */
.stats-btn {
  padding: 10px 20px;
  background: #3b82f6;
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  white-space: nowrap;
  font-size: 1rem;
  appearance: none;              /* 移除浏览器默认外观 */
  -webkit-appearance: none;
  -moz-appearance: none;
  transition: background 0.2s ease;
}
.stats-btn:hover {
  background: #2563eb;
}
.stats-btn:active {
  transform: scale(0.98);
}

/* === 手机端响应式（放在最后，优先级最高）=== */
@media (max-width: 768px) {
  .container {
    grid-template-columns: 1fr;
    margin: 80px auto 20px;
    padding: 0 16px;
  }
  .topbar {
    padding: 0 80px 0 14px;
  }
  /* 搜索框折叠 */
  .bing-search {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    padding: 0;
    justify-content: center;
    transition: all 0.3s ease;
  }
  .bing-search-input {
    display: none;
    width: 0;
    padding: 0;
  }
  .bing-search-btn {
    margin: 0;
    width: 44px;
    height: 44px;
  }
  /* 展开搜索 */
  .bing-search.expanded {
    position: fixed;
    top: 0;
    right: 12px;
    transform: translateY(8px);
    width: calc(100vw - 80px);
    max-width: 300px;
    height: 44px;
    border-radius: 50px;
    padding: 0 8px;
    z-index: 2300;
    box-shadow: var(--shadow);
    background: var(--bg-glass);
    backdrop-filter: var(--blur);
    border: 1px solid var(--border-glass);
  }
  .bing-search.expanded .bing-search-input {
    display: block;
    flex: 1;
    padding: 0 12px;
  }
  .bing-search.expanded .bing-search-btn {
    margin-right: 4px;
    width: 40px;
    height: 40px;
  }
  /* 手机端菜单 */
  .side-menu {
    left: -50% !important;
    width: 50% !important;
  }
  .side-menu.open {
    left: 0 !important;
  }
  /* 签到区域：手机垂直布局 + 按钮全宽 */
  .search-area {
    flex-direction: column;
    align-items: stretch;
  }
  .stats-btn {
    width: 100%;
  }

  /* === 签到输入框：毛玻璃版（参考 Bing 搜索框） === */
  .signin-search {
    width: 100%;
    height: 48px;
    background: var(--bg-glass);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--border-glass);
    border-radius: 14px;
    display: flex;
    align-items: center;
    padding: 0 14px;
    box-shadow: var(--shadow);
  }

  /* 确保 input 透明 + 无边框 */
  .bing-search-input {
    flex: 1;
    padding: 0 16px;
    background: transparent !important; /* 关键：透明让 blur 可见 */
    border: none;
    color: var(--text);
    font-size: 1rem;
    outline: none;
  }

  /* 输入框本体：必须透明 */
  .signin-search input {
    width: 100%;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text);
    font-size: 1rem;
  }

  .signin-search input::placeholder {
  color: rgba(255,255,255,0.7);
  }

  /* 手机端适配 */
  @media (max-width: 768px) {
    .search-area {
      flex-direction: column;
      align-items: stretch;
    }
    .signin-search {
      height: 52px; /* 手机大一点好点 */
    }
    .stats-btn {
      width: 100%;
    }
  }

  /* === 签到输入框 · 真正主题自适应毛玻璃 === */
  .signin-search {
    width: 100%;
    height: 52px;
    display: flex;
    align-items: center;

    /* 关键：全部走主题变量 */
    background: var(--bg-glass);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);

    border: 1px solid var(--border-glass);
    border-radius: 16px;
    box-shadow: var(--shadow);

    padding: 0 18px;
  }

  /* 输入框本体：必须 100% 透明 */
  .signin-search input {
    width: 100%;
    height: 100%;
    background: transparent !important;
    border: none !important;
    outline: none;

    color: var(--text);
    font-size: 1rem;
  }

  /* placeholder 跟主题走 */
  .signin-search input::placeholder {
    color: rgba(255, 255, 255, 0.65);
  }

  /* 深色模式下稍微压暗一点 */
  body.dark-mode .signin-search input::placeholder {
    color: rgba(255, 255, 255, 0.45);
  }
}