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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'boxmoe', 'Microsoft JhengHei', Georgia, Times, serif, 'Microsoft YaHei', 'Open Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background 0.3s ease, color 0.3s ease;
}

/* 背景图片层 */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: url('https://r.dreamgary.cn/images/hanser2025.jpg') center/cover no-repeat;
  opacity: 0.12;
  z-index: -2;
  pointer-events: none;
}

a { color: var(--primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--primary-light); }
ul { list-style: none; }
img { max-width: 100%; height: auto; }

/* 页面图标淡蓝色点缀（兼容 Font Awesome 字体图标） */
.page svg,
.page i.fa-solid,
.page i.fa-brands { color: var(--accent-blue); }

/* ===== 粒子背景 ===== */
.particles-bg {
  position: fixed !important;
  top: 0; left: 0;
  width: 100%; height: 100%;
  display: block;
  z-index: 0;
  pointer-events: none;
}

/* ===== App容器 ===== */
.app { 
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  position: relative; 
  z-index: 1; 
  transition: background 0.3s ease; 
}

/* 主体区域：左侧滚动内容 + 右侧全局边栏 */
.app-body {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  flex: 1;
  min-height: 0; /* 允许子项在 flex 容器内正确收缩，从而内部滚动 */
  width: 100%;
  max-width: 90%;
  margin: 0;
  padding: 0 20px;
}

/* ===== 滚动吸附容器（用 flex 填充剩余高度，兼容任意顶栏高度） ===== */
.snap-container {
  flex: 1 1 0%;
  min-width: 0;
  min-height: 0;
  height: auto;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: none;
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
  position: relative;
  z-index: 1;
}
.snap-container::-webkit-scrollbar { display: none; }

/* ===== 登录页面包装器（和 snap-container 等宽） ===== */
.auth-snap-wrapper {
  flex: 1 1 0%;
  min-width: 0;
  min-height: 0;
  height: auto;
  overflow-y: auto;
  overflow-x: hidden;
  position: relative;
  z-index: 1;
}
.auth-snap-wrapper .snap-section {
  scroll-snap-align: none;
  padding-top: 0;
}

/* 每个吸附区块 */
.snap-section {
  scroll-snap-align: start;
  min-height: calc(100vh - 69px);
  padding: 32px 32px 40px;
  position: relative;
}

/* ===== 全局右侧边栏：头像 + 名字 + 歌词，所有页面始终显示 ===== */
.global-sidebar {
  flex: 0 0 380px;
  width: 480px;
  padding: 160px 20px 60px 20px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  position: relative;
  z-index: 2;
}

/* 头像 + 名字 横向排列 */
.sidebar-top {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-top .avatar-wrapper {
  position: relative;
  width: 170px; height: 170px;
  flex-shrink: 0;
}
.sidebar-top .avatar {
  width: 170px; height: 170px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--primary-light);
  transition: transform 0.3s ease;
  display: block;
}
.sidebar-top .avatar:hover { transform: scale(1.05); }
.sidebar-top .avatar-ring {
  position: absolute;
  top: -5px; left: -5px;
  width: 180px; height: 180px;
  border-radius: 50%;
  border: 2px dashed var(--accent-blue-light);
  animation: spin 20s linear infinite;
  pointer-events: none;
}
@keyframes spin { to { transform: rotate(360deg); } }

.sidebar-top .profile-name {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.sidebar-top .profile-greeting {
  font-family: 'Pacifico', cursive;
  font-size: 2.25rem;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar-top .profile-name-main {
  font-family: 'Pacifico', cursive;
  font-size: 3rem;
  line-height: 1.8;
  background: var(--name-gradient);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: nameGradientShift 8s linear infinite;
  will-change: background-position;
}

@keyframes nameGradientShift {
  0% { background-position: 0% center; }
  100% { background-position: 200% center; }
}

.global-sidebar .lyrics-section {
  margin: 12px 0 0;
  padding: 0;
  background: none;
  border-radius: 0;
  min-height: 3em;
  width: 100%;
}
.global-sidebar .lyrics-typewriter { 
  font-size: 0.85rem; 
  color: var(--text-secondary); 
  word-break: break-all;
  text-align: left;
}
.global-sidebar .lyrics-cursor { 
  color: var(--primary); 
  animation: blink 1s infinite; 
  font-weight: bold; 
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* 歌词渐变滑块：蓝黄渐变，宽度跟随文字长度 */
.lyrics-gradient-bar {
  height: 4px;
  border-radius: 2px;
  margin-top: 4px;
  background: linear-gradient(90deg, #3b82f6, #facc15);
  transition: width 0.08s linear;
}

/* ===== 顶栏(含Tab) ===== */
.top-bar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 18px 20px;
  width: 100%;
  box-sizing: border-box;
  position: sticky;
  top: 0;
  z-index: 100;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom: 1px solid var(--border);
  transition: border-color 0.3s ease;
}
[data-theme="dark"] .top-bar {
  background: transparent;
}

/* auth 打开时 tab 项目变灰 */
.tab-item.dimmed {
  color: var(--text-secondary) !important;
  font-weight: 400 !important;
  transform: none !important;
  animation: none !important;
  pointer-events: auto;
}
.tab-item.dimmed:hover {
  color: var(--primary) !important;
  opacity: 1;
}

.top-bar-left {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}
.site-title {
  font-family: 'Pacifico', 'Ubuntu', cursive;
  font-size: 1.5rem;
  line-height: 1.8;
  background: var(--name-gradient);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
  animation: nameGradientShift 8s linear infinite;
}
.site-subtitle { color: var(--text-secondary); font-size: 0.85rem; white-space: nowrap; transition: color 0.3s ease; }

/* ===== 窄屏：隐藏顶部 Tab 与右侧全局边栏，打卡改为右下角悬浮 ===== */
@media (max-width: 1024px) {
  .top-bar {
    grid-template-columns: 1fr auto;
  }
  .top-bar .tab-bar { display: none; }

  /* 全局边栏：只保留打卡，其余收起；打卡固定到右下角 */
  .global-sidebar {
    flex: 0 0 0;
    width: 0;
    padding: 0;
  }
  .global-sidebar .sidebar-top,
  .global-sidebar .lyrics-section {
    display: none;
  }
  .global-sidebar .checkin-row {
    position: fixed;
    right: 20px;
    bottom: 20px;
    margin: 0;
    z-index: 999;
    flex-direction: row-reverse;
    align-items: center;
    gap: 10px;
  }
  /* 弹层改从左侧展开，避免超出屏幕右边 */
  .global-sidebar .checkin-popup {
    left: auto;
    right: 0;
  }
  .global-sidebar .checkin-popup::after {
    left: auto;
    right: 28px;
  }
}

/* ===== 主题切换按钮 ===== */
.theme-toggle {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: transparent;
  color: var(--primary);
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  justify-self: end;
  transition: all 0.35s cubic-bezier(0.22, 0.61, 0.36, 1);
  flex-shrink: 0;
}
.theme-toggle:hover {
  border-color: var(--primary);
  box-shadow: 0 0 20px var(--primary);
  transform: rotate(25deg) scale(1.1);
}
.theme-toggle:active { transform: scale(0.85) rotate(0deg); }

/* ===== 主题切换：悬浮菜单 ===== */
.theme-picker {
  position: relative;
  display: flex;
  align-items: center;
}

.theme-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 168px;
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: var(--bg-card);
  backdrop-filter: var(--card-backdrop);
  -webkit-backdrop-filter: var(--card-backdrop);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow-hover);
  z-index: 1000;
  animation: themeMenuIn 0.18s ease;
}

.theme-menu[hidden] { display: none; }

@keyframes themeMenuIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.theme-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-family: inherit;
  text-align: left;
  white-space: nowrap;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.theme-option i {
  width: 16px;
  text-align: center;
}

.theme-option:hover {
  background: var(--tag-bg);
  color: var(--primary);
}

.theme-option.active {
  background: var(--tag-bg);
  color: var(--primary);
  font-weight: 600;
}

.theme-picker.open .theme-toggle {
  border-color: var(--primary);
  box-shadow: 0 0 20px var(--primary);
}

/* ===== 主题切换：View Transition API 圆形揭开 ===== */
/* 旧页面快照保持静止，不参与动画 */
::view-transition-old(root) {
  animation: none;
}

/* 新页面快照从按钮位置以圆形扩散揭开 */
::view-transition-new(root) {
  clip-path: circle(0 at var(--vt-x, 50%) var(--vt-y, 50%));
  animation: vt-reveal 0.6s cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
}

@keyframes vt-reveal {
  to {
    clip-path: circle(150% at var(--vt-x, 50%) var(--vt-y, 50%));
  }
}

/* 浏览器不支持 View Transition API 时，保留 body 的平滑过渡作为降级 */
body {
  transition: background 0.3s ease, color 0.3s ease;
}

/* ===== Tab导航栏(在顶栏内) ===== */
.tab-bar {
  display: flex;
  flex-wrap: nowrap;
  gap: 2px;
  overflow: visible;
  justify-content: center;
  position: relative;
}
.tab-bar::-webkit-scrollbar { height: 0; }

/* ===== 果冻滑动指示器 ===== */
.tab-indicator {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  border-radius: 12px;
  background: var(--tab-indicator-bg);
  background-blend-mode: screen, normal, overlay, normal, screen;
  background-size: 200% 200%;
  animation: gradientBlend 6s ease-in-out infinite;
  transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1),
              width 0.55s cubic-bezier(0.34, 1.56, 0.64, 1),
              opacity 0.6s ease;
  z-index: 0;
  pointer-events: none;
  box-shadow: 0 4px 20px var(--accent-blue),
              0 0 0 2px var(--primary-light);
  will-change: transform, width, background-position;
}

/* 蓝黄多色团缓慢随机交融 */
@keyframes gradientBlend {
  0%   { background-position: 30% 50%, 70% 40%, 50% 70%, 40% 30%, 60% 60%; }
  15%  { background-position: 55% 35%, 45% 65%, 75% 45%, 25% 55%, 40% 70%; }
  30%  { background-position: 70% 60%, 30% 30%, 40% 80%, 60% 40%, 55% 35%; }
  45%  { background-position: 45% 75%, 65% 50%, 30% 50%, 70% 60%, 35% 45%; }
  60%  { background-position: 35% 45%, 55% 70%, 60% 35%, 45% 65%, 70% 55%; }
  75%  { background-position: 60% 55%, 40% 35%, 55% 60%, 35% 45%, 50% 40%; }
  90%  { background-position: 50% 40%, 50% 55%, 45% 65%, 55% 35%, 65% 50%; }
  100% { background-position: 30% 50%, 70% 40%, 50% 70%, 40% 30%, 60% 60%; }
}

.tab-item {
  display: flex;
  align-items: center;
  padding: 6px 10px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 1rem;
  cursor: pointer;
  transition: color 0.3s ease, transform 0.3s cubic-bezier(0.22, 0.61, 0.36, 1);
  white-space: nowrap;
  font-family: inherit;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}
.tab-item:hover { 
  background: var(--tag-bg);
  color: var(--primary);
  transform: translateY(-3px);
}
.tab-item.active {
  color: var(--color-white);
  font-weight: 600;
  transform: translateY(-1px);
  border-radius: 12px;
  background: transparent;
  box-shadow: none;
}
/* 激活瞬间的果冻弹跳 */
.tab-item.active {
  animation: jellyPop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes jellyPop {
  0%   { transform: translateY(-1px) scale(0.85); }
  40%  { transform: translateY(-2px) scale(1.08); }
  70%  { transform: translateY(-1px) scale(0.96); }
  100% { transform: translateY(-1px) scale(1); }
}
.tab-item:active { transform: scale(0.92); }

/* ===== 主内容区 + 元素块级上浮动画 ===== */

/* 进入前隐藏页面内容 */
.snap-section:not(.entered) .page {
  opacity: 0;
}

/* 初始：不可见 */
.snap-section .animate-el {
  opacity: 0;
}

/* 进入后：播放一次性上浮动画（animation 不覆盖元素自身的 hover transition） */
.snap-section.entered .animate-el {
  animation: elFloatUp 0.6s cubic-bezier(0.22, 0.61, 0.36, 1) both;
}

@keyframes elFloatUp {
  0%   { opacity: 0; transform: translateY(32px); }
  55%  { opacity: 1; transform: translateY(-9px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* ===== 页面通用 ===== */
.page {
  padding: 32px;
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.page h2 {
  font-size: 1.5rem;
  margin-bottom: 20px;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: color 0.3s ease;
}
.page h3 { font-size: 1.15rem; margin: 20px 0 12px; color: var(--text); transition: color 0.3s ease; }
.page p { transition: color 0.3s ease; }

/* ===== 首页 ===== */
.home-page { text-align: left; padding: 40px 32px; }

.profile-title { color: var(--text-secondary); font-size: 1rem; margin: 4px 0; }
.profile-mbti { color: var(--text-muted); font-size: 0.9rem; }
.profile-quote { color: var(--accent-pink); font-style: italic; margin-top: 8px; font-size: 0.95rem; }

.quick-stats { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 20px; }
.stat-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--tag-bg);
  border-radius: 30px;
  color: var(--tag-text);
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
  overflow: hidden;
  z-index: 1;
  transition: transform 0.3s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.stat-item::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 30px;
  background: var(--shimmer-gradient);
  background-size: 250% 100%;
  background-position: 150% 0;
  transition: background-position 1s ease;
  pointer-events: none;
  z-index: -1;
}
.stat-item:hover { transform: translateY(-2px); }
.stat-item:hover::after { background-position: -50% 0; }
.stat-item svg { font-size: 1.1rem; transition: transform 0.2s ease; }
.stat-item:hover svg { transform: scale(1.15); }

/* ===== 关于页 ===== */
.about-section { transition: opacity 0.3s ease; }
.about-content p { margin-bottom: 10px; line-height: 1.8; transition: color 0.3s ease; }
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  padding: 6px 16px;
  background: var(--tag-bg);
  color: var(--tag-text);
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
  overflow: hidden;
  z-index: 1;
  transition: transform 0.3s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.tag::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 20px;
  background: var(--shimmer-gradient);
  background-size: 250% 100%;
  background-position: 150% 0;
  transition: background-position 1s ease;
  pointer-events: none;
  z-index: -1;
}
.tag:hover { transform: translateY(-2px) scale(1.03); }
.tag:hover::after { background-position: -50% 0; }
.friendly { font-size: 1.1rem; font-weight: 600; }

/* ===== 联系页 ===== */
.contact-cards { display: flex; flex-direction: column; gap: 6px; }
.contact-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  cursor: pointer;
  border-radius: 12px;
  position: relative;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.22, 0.61, 0.36, 1);
  border-bottom: 1px solid var(--border);
}
.contact-card:hover { 
  padding-left: 24px; 
  color: var(--primary); 
  transform: translateY(-2px);
}
.contact-card:last-child { border-bottom: none; }
.contact-icon { font-size: 1.4rem; }
.contact-value { flex: 1; font-size: 0.95rem; }
.copy-btn {
  background: none; border: none;
  color: var(--text-muted); cursor: pointer;
  font-size: 1rem; padding: 4px; transition: color 0.2s;
}
.copy-btn:hover { color: var(--primary); }

/* ===== 游戏页 ===== */
.game-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 14px; }
.game-card {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 18px;
  border-radius: 12px;
  position: relative;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.game-card:hover { 
  padding-left: 24px; 
  color: var(--primary); 
  transform: translateY(-2px);
}
.game-icon { font-size: 2rem; }
.game-info h3 { margin: 0 0 4px; font-size: 1rem; }
.game-info p { color: var(--text-secondary); font-size: 0.9rem; }
.game-level {
  display: inline-block; padding: 2px 10px;
  background: var(--gradient-1); color: var(--color-white);
  border-radius: 10px; font-size: 0.8rem; font-weight: 600; margin-top: 4px;
}

/* ===== 二次元页 ===== */
.anime-section { margin-bottom: 24px; }
.character-grid { display: flex; flex-wrap: wrap; gap: 10px; }
.char-card {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 16px;
  border-radius: 10px;
  position: relative;
  overflow: hidden;
  transition: all 0.2s; color: var(--text);
}
.char-card:hover { 
  color: var(--primary); 
  transform: translateY(-2px);
}
.char-icon { font-size: 1.3rem; }
.char-name { font-size: 0.95rem; font-weight: 500; }

/* ===== 项目页 ===== */
.project-card {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 18px;
  border-radius: 12px;
  position: relative;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.22, 0.61, 0.36, 1); margin-bottom: 6px; color: var(--text);
}
.project-card:hover { 
  padding-left: 24px; 
  color: var(--primary); 
  transform: translateY(-2px);
}
.project-icon { font-size: 1.5rem; color: var(--text); }
.project-info h4 { font-size: 1rem; margin: 0; }
.project-info p { font-size: 0.85rem; color: var(--text-secondary); }
.project-arrow { color: var(--text-muted); font-size: 0.85rem; }

/* ===== GitHub日历 ===== */
.github-calendar {
  margin: 24px 0; padding: 16px 0;
}
.github-calendar h3 { margin-top: 0; }
.calendar-wrapper {
  padding: 10px 0;
}
.calendar-wrapper svg { max-width: 100%; }
.calendar-wrapper rect[data-level] {
  outline: none;
  transition: stroke 0.15s ease;
}
.calendar-wrapper rect[data-level]:hover {
  stroke: var(--primary);
  stroke-width: 1.5px;
}
.github-link { margin-top: 10px; text-align: center; }

/* 贡献图 Tooltip（由 react-activity-calendar 内置 tooltips 渲染） */
.react-activity-calendar__tooltip {
  z-index: 1001;
  width: max-content;
  max-width: calc(100vw - 20px);
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 500;
  background: var(--bg-overlay);
  color: var(--text);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}
.react-activity-calendar__tooltip[data-color-scheme='dark'] {
  background: var(--color-white, #fff);
  color: var(--dark-bg, #1c1917);
}
.react-activity-calendar__tooltip-arrow {
  fill: var(--dark-bg, #1c1917);
}
.react-activity-calendar__tooltip[data-color-scheme='dark'] .react-activity-calendar__tooltip-arrow {
  fill: var(--color-white, #fff);
}



/* ===== 链接页 ===== */
.links-grid { display: flex; flex-direction: column; gap: 6px; }
.link-card {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 18px;
  border-radius: 12px;
  position: relative;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.22, 0.61, 0.36, 1); color: var(--text);
}
.link-card:hover { 
  padding-left: 24px; 
  color: var(--primary); 
  transform: translateY(-2px);
}
.link-icon { font-size: 1.5rem; }
.link-info { flex: 1; }
.link-name { display: block; font-weight: 600; font-size: 0.95rem; }
.link-desc { display: block; font-size: 0.8rem; color: var(--text-secondary); }
.link-arrow { color: var(--text-muted); font-size: 0.85rem; }

/* ===== 卡片悬停渐变光斑过渡层 ===== */
.contact-card::after,
.game-card::after,
.char-card::after,
.project-card::after,
.link-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: var(--card-hover-bg);
  background-blend-mode: screen, overlay, soft-light, overlay, screen;
  background-size: 200% 200%;
  opacity: 0;
  transition: opacity 0.35s ease;
  z-index: 0;
  pointer-events: none;
}

.contact-card:hover::after,
.game-card:hover::after,
.char-card:hover::after,
.project-card:hover::after,
.link-card:hover::after {
  opacity: 1;
}

/* ===== Footer ===== */
.app-footer { 
  scroll-snap-align: start;
  text-align: center; 
  padding: 24px 20px;
  color: var(--text-muted);
  font-size: 0.85rem;
  width: 100%;
  box-sizing: border-box;
  position: relative;
  z-index: 2;
  border-top: 1px solid var(--border);
}
.app-footer p { margin: 4px 0; }
.footer-quote { font-style: italic; color: var(--accent-pink); }

/* ===== 回到顶部 ===== */
.back-to-top {
  position: fixed; bottom: 30px; left: 30px;
  width: 46px; height: 46px; border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--bg);
  color: var(--primary); font-size: 1.1rem;
  transition: all 0.3s cubic-bezier(0.22, 0.61, 0.36, 1), opacity 0.35s ease, visibility 0.35s ease;
  cursor: pointer; display: flex;
  align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transform: translateY(20px);
  transition: all 0.3s ease; z-index: 999;
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover {
  background: var(--gradient-1); color: var(--color-white);
  border-color: transparent; transform: translateY(-3px);
  box-shadow: 0 8px 24px var(--primary);
}

/* ===== 滚动条 ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-hover); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-light); }

/* ===== 每日打卡组件 ===== */
.checkin-wrapper {
  position: relative;
  width: fit-content;
  z-index: 10;
}

/* 悬浮日历弹出层：默认隐藏，通过 .visible 类控制 */
.checkin-popup {
  position: absolute;
  bottom: calc(100% + 14px);
  left: 0;
  width: 300px;
  padding: 16px 18px;
  background: var(--bg-overlay);
  border-radius: 18px;
  border: 1px solid var(--border);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15), 0 4px 12px rgba(0, 0, 0, 0.08);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s cubic-bezier(0.22, 0.61, 0.36, 1);
  pointer-events: none;
  z-index: 50;
}

/* 小三角箭头指向按钮 */
.checkin-popup::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 32px;
  border: 8px solid transparent;
  border-top-color: var(--bg-overlay);
  filter: drop-shadow(0 2px 2px rgba(0, 0, 0, 0.06));
}

/* 显示状态 */
.checkin-popup.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.checkin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.checkin-title-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.checkin-title-icon {
  color: var(--primary);
  font-size: 1.1rem;
}

.checkin-title {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
  transition: color 0.3s ease;
}

.checkin-stats {
  display: flex;
  align-items: center;
  gap: 6px;
}

.checkin-streak {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #f97316;
  padding: 3px 10px;
  background: rgba(249, 115, 22, 0.12);
  border-radius: 12px;
}

.checkin-streak-icon {
  color: #f97316;
  animation: firePulse 1.2s ease-in-out infinite;
}

@keyframes firePulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}

.checkin-trophy {
  color: #eab308;
  font-size: 1rem;
  animation: trophyBounce 1s ease-in-out infinite;
}

@keyframes trophyBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

/* 月份导航 */
.checkin-month-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.checkin-nav-btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  transition: all 0.2s ease;
}

.checkin-nav-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--tag-bg);
}

.checkin-month-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
  transition: color 0.3s ease;
}

.checkin-month-count {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: 4px;
}

/* 星期表头 */
.checkin-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
  margin-bottom: 4px;
}

.checkin-weekday {
  text-align: center;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 4px 0;
}

/* 日历网格 */
.checkin-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 3px;
}

.checkin-cell {
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  cursor: default;
  position: relative;
  transition: all 0.2s ease;
  background: transparent;
}

.checkin-cell.empty {
  pointer-events: none;
}

.checkin-cell.today {
  cursor: pointer;
  font-weight: 700;
  color: var(--primary);
  background: var(--tag-bg);
  border: 1.5px solid var(--primary);
}

.checkin-cell.today:hover {
  transform: scale(1.12);
  box-shadow: 0 0 12px var(--primary);
}

.checkin-cell.checked {
  background: var(--gradient-1);
  color: var(--color-white);
  font-weight: 600;
  border: none;
}

.checkin-cell.checked.today {
  border: 2px solid var(--color-white);
  box-shadow: 0 0 10px var(--primary);
}

.checkin-dot {
  font-size: 0.55rem;
  line-height: 1;
  margin-top: -2px;
}

.checkin-day-num {
  line-height: 1;
}

/* 打卡按钮 - 圆形 */
.checkin-btn {
  width: 64px;
  height: 64px;
  padding: 0;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--bg-overlay);
  backdrop-filter: blur(12px) saturate(140%);
  -webkit-backdrop-filter: blur(12px) saturate(140%);
  color: var(--text);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-top: 5px;
  gap: 2px;
  transition: all 0.3s cubic-bezier(0.22, 0.61, 0.36, 1);
  font-family: inherit;
  position: relative;
}

.checkin-btn svg:first-child {
  font-size: 1.2rem;
}

.checkin-btn-label {
  font-size: 0.78rem;
  line-height: 1.5;
}

.checkin-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-3px) scale(1.08);
  box-shadow: 0 6px 24px var(--primary);
}

.checkin-btn.checked {
  background: var(--gradient-1);
  color: var(--color-white);
  border-color: transparent;
}

.checkin-btn.checked:hover {
  opacity: 0.9;
  box-shadow: 0 6px 28px var(--primary);
}

.checkin-btn.animating {
  animation: checkinPop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* 未登录状态：全透明 */
.checkin-btn.unauth {
  background: transparent;
  border: 2px dashed var(--border);
  color: var(--text-muted);
  cursor: default;
  opacity: 0.65;
}
.checkin-btn.unauth:hover {
  border-color: var(--border);
  color: var(--text-muted);
  transform: none;
  box-shadow: none;
}

/* 按钮右上角 streak 徽标 */
.checkin-btn-streak {
  position: absolute;
  top: -6px;
  right: -6px;
  display: inline-flex;
  align-items: center;
  gap: 2px;
  font-size: 0.7rem;
  font-weight: 700;
  color: #fff;
  background: #f97316;
  padding: 2px 6px;
  border-radius: 10px;
  line-height: 1;
}

/* 按钮 + 运势横向排列 */
.checkin-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 48px;
  flex-shrink: 0;
}

/* 运势文字 */
.checkin-fortune {
  display: flex;
  flex-direction: column;
  gap: 2px;
  line-height: 1.3;
}

.checkin-fortune-value {
  font-size: 0.85rem;
  font-weight: 700;
}

.checkin-fortune-luck {
  font-size: 0.8rem;
  font-weight: 600;
}

@keyframes checkinPop {
  0%   { transform: scale(1); }
  40%  { transform: scale(1.08); }
  70%  { transform: scale(0.96); }
  100% { transform: scale(1); }
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .top-bar {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    gap: 8px;
    text-align: center;
    padding: 12px 0;
  }
  .top-bar-left { flex-direction: column; gap: 2px; }
  .top-bar-right { justify-content: center; gap: 8px; }
  .site-title { font-size: 1.4rem; }
  .tab-bar { overflow: visible; flex-wrap: nowrap; padding: 6px 0; gap: 4px; }
  .tab-item { padding: 8px 14px; font-size: 0.82rem; }
  .page { padding: 20px 16px; }
  .snap-section { padding: 20px 16px; min-height: auto; }
  .snap-container { scroll-snap-type: none; }
  .game-cards { grid-template-columns: 1fr; }
  .quick-stats { flex-direction: column; align-items: center; }
  .back-to-top { bottom: 20px; left: 20px; width: 40px; height: 40px; }

  .app-body { padding: 0; }
}

/* ===== 顶栏右侧：主题 + 登录 ===== */
.top-bar-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  flex-shrink: 0;
}

.top-bar-login-btn {
  height: 36px;
  padding: 0 16px;
  border-radius: 18px;
  border: 2px solid var(--border);
  background: transparent;
  color: var(--primary);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.35s cubic-bezier(0.22, 0.61, 0.36, 1);
  font-family: inherit;
  white-space: nowrap;
  position: relative;
  z-index: 5;
}
.top-bar-login-btn:hover {
  border-color: var(--primary);
  box-shadow: 0 0 20px var(--primary);
  transform: scale(1.05);
}

/* 已登录药丸（不可点击，右侧退出按钮） */
.top-bar-user-pill {
  cursor: pointer;
  user-select: none;
  gap: 6px;
  padding-right: 12px;
}
.top-bar-user-pill:hover {
  transform: none;
  box-shadow: 0 0 20px var(--primary);
}

.top-bar-user-caret {
  font-size: 0.7rem;
  opacity: 0.6;
  transition: transform 0.25s ease;
}
.top-bar-user-wrap.open .top-bar-user-caret { transform: rotate(180deg); }
.top-bar-user-wrap.open .top-bar-user-pill {
  border-color: var(--primary);
  box-shadow: 0 0 20px var(--primary);
}

/* ===== 用户悬浮菜单 ===== */
.user-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 168px;
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: var(--bg-card);
  backdrop-filter: var(--card-backdrop);
  -webkit-backdrop-filter: var(--card-backdrop);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow-hover);
  z-index: 1000;
  animation: themeMenuIn 0.18s ease;
}
.user-menu[hidden] { display: none; }

.user-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-family: inherit;
  text-align: left;
  white-space: nowrap;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease;
}
.user-menu-item i {
  width: 16px;
  text-align: center;
}
.user-menu-item:hover {
  background: var(--tag-bg);
  color: var(--primary);
}
.user-menu-logout:hover {
  color: #ef4444;
  background: rgba(239, 68, 68, 0.12);
}

.top-bar-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.top-bar-avatar-fallback {
  font-size: 1.2rem;
}
.top-bar-avatar-fallback[hidden] { display: none; }

.top-bar-logout-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: none;
  background: none;
  color: var(--text-secondary);
  font-size: 0.75rem;
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
  margin-left: 2px;
}
.top-bar-logout-btn:hover {
  color: #ef4444;
  background: rgba(239, 68, 68, 0.12);
}

/* ===== 登录/注册页面 ===== */
.auth-page {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  min-height: calc(100vh - 69px);
  padding: 10px 20px 60px;
  position: relative;
}

.auth-back-btn {
  display: none;
}
.auth-back-btn:hover {
  color: var(--text);
}

/* 左右两栏容器 */
.auth-container {
  display: flex;
  gap: 40px;
  width: 100%;
  align-items: flex-start;
}

/* 左侧表单 */
.auth-form-side {
  flex: 1;
  min-width: 0;
  max-width: 460px;
  margin: 0 auto;
  width: 100%;
  background: none;
  border: none;
  border-radius: 0;
  padding: 36px 32px 32px;
  box-shadow: none;
}

/* 登录/注册切换标签 - sticky固定在顶栏下方 */
.auth-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 24px;
  border-radius: 10px;
  padding: 0;
  height: 40px;
  position: relative;
  z-index: 5;
  background: transparent;
  animation: none !important;
  opacity: 1 !important;
}

/* 切换滑块 */
.auth-tab-indicator {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  border-radius: 8px;
  background: var(--primary);
  transition: transform 0.3s ease, width 0.3s ease;
  z-index: 0;
  pointer-events: none;
}

.auth-tab {
  flex: 1;
  padding: 8px 16px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: 8px;
  transition: color 0.3s ease;
  font-family: inherit;
  position: relative;
  z-index: 1;
}
.auth-tab.active {
  background: transparent;
  color: var(--color-white);
}
.auth-tab:hover:not(.active) {
  color: var(--text);
}

/* 右侧信息区 - 在登录页面隐藏 */
.auth-info-side {
  display: none;
}

.auth-info-card {
  background: none;
  border: none;
  border-radius: 0;
  padding: 24px 22px;
}

.auth-info-icon {
  font-size: 1.5rem;
  color: var(--primary);
  margin-bottom: 10px;
}

.auth-info-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 12px;
}

.auth-info-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.auth-info-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.auth-info-list li svg,
.auth-info-list li i {
  color: var(--primary);
  font-size: 0.75rem;
  flex-shrink: 0;
}

.auth-info-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 共用：auth-title, auth-subtitle, auth-form, auth-field, auth-error, auth-submit */
.auth-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 6px;
}

.auth-subtitle {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin: 0 0 20px;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 320px;
}

.auth-field {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0 14px;
  transition: border-color 0.2s;
}
.auth-field:focus-within {
  border-color: var(--primary);
}

.auth-field-icon {
  color: var(--text-secondary);
  font-size: 0.95rem;
  flex-shrink: 0;
}

.auth-field input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  padding: 12px 0;
  font-size: 0.95rem;
  color: var(--text);
  font-family: inherit;
}
.auth-field input::placeholder {
  color: var(--text-muted);
}

.auth-error {
  color: #ef4444;
  font-size: 0.85rem;
  margin: 0;
  text-align: center;
}

.auth-success {
  color: #22c55e;
  font-size: 0.85rem;
  margin: 0;
  text-align: center;
  background: rgba(34, 197, 94, 0.1);
  padding: 8px 12px;
  border-radius: 8px;
}

.auth-submit {
  margin-top: 4px;
  padding: 12px;
  background: var(--gradient-1);
  color: var(--color-white);
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.15s;
  font-family: inherit;
}
.auth-submit:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}
.auth-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.turnstile-container {
  display: flex;
  justify-content: center;
  margin: 4px 0;
  min-height: 65px;
}

/* ===== 未登录打卡提示 ===== */
.checkin-login-hint {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 68px;
  height: 68px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px dashed var(--border);
  color: var(--text-secondary);
  font-size: 0.7rem;
  cursor: default;
}

.checkin-login-hint-icon {
  font-size: 1.2rem;
  color: var(--primary);
  opacity: 0.5;
}

/* ===== 响应式：登录页 ===== */
@media (max-width: 768px) {
  .auth-container {
    flex-direction: column;
    gap: 20px;
  }
  .auth-info-side {
    flex-direction: row;
    gap: 12px;
  }
  .auth-info-card {
    flex: 1;
    padding: 16px 14px;
  }
  .auth-back-btn {
    top: 12px;
    left: 12px;
    padding: 6px 12px;
    font-size: 0.82rem;
  }
}

/* ===== 退出确认悬浮条 ===== */
.top-bar-user-wrap {
  position: relative;
}

.logout-confirm-bar {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-card);
  backdrop-filter: var(--card-backdrop);
  -webkit-backdrop-filter: var(--card-backdrop);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 16px;
  box-shadow: var(--shadow-hover);
  z-index: 1000;
  font-size: 0.85rem;
  color: var(--text);
  white-space: nowrap;
  animation: confirmSlideUp 0.2s ease;
}

@keyframes confirmSlideUp {
  from { transform: translateY(-6px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes confirmSlideDown {
  from { transform: translateY(0); opacity: 1; }
  to { transform: translateY(-6px); opacity: 0; }
}

.logout-confirm-bar.closing {
  animation: confirmSlideDown 0.15s ease forwards;
}

.logout-confirm-actions {
  display: flex;
  gap: 10px;
}

.logout-confirm-cancel,
.logout-confirm-ok {
  padding: 6px 18px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
  border: none;
}

.logout-confirm-cancel {
  background: var(--tag-bg);
  color: var(--text-secondary);
}
.logout-confirm-cancel:hover {
  background: var(--border);
  color: var(--text);
}

.logout-confirm-ok {
  background: #ef4444;
  color: #fff;
}
.logout-confirm-ok:hover {
  background: #dc2626;
}

/* ===== 退出确认：hidden 属性兜底 ===== */
.logout-confirm-bar[hidden] { display: none; }

/* ===== 主视图 / 登录视图切换 ===== */
.snap-container[hidden],
.auth-snap-wrapper[hidden] { display: none; }

/* ===== 首帧定位滑块时禁用过渡，避免加载时从左侧滑入 ===== */
.tab-indicator.no-transition { transition: none !important; }

/* ===== GitHub 贡献热力图（服务端渲染） ===== */
:root,
[data-theme="light"] {
  --gh-level-0: #ebedf0;
  --gh-level-1: #fef3c7;
  --gh-level-2: #fde68a;
  --gh-level-3: #fbbf24;
  --gh-level-4: #f59e0b;
}

[data-theme="dark"] {
  --gh-level-0: #161b22;
  --gh-level-1: #451a03;
  --gh-level-2: #92400e;
  --gh-level-3: #d97706;
  --gh-level-4: #fbbf24;
}

.github-calendar {
  margin: 24px 0;
  padding: 16px 0;
}
.github-calendar h3 {
  margin-top: 0;
  font-size: 1.15rem;
  color: var(--text);
}
.calendar-wrapper {
  padding: 10px 0;
  overflow-x: auto;
  scrollbar-width: thin;
}
.gh-months {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 14px;
  height: 16px;
  margin-left: 17px;
  margin-bottom: 4px;
  font-size: 0.7rem;
  color: var(--text-muted);
}
.gh-month {
  grid-row: 1;
  white-space: nowrap;
  overflow: visible;
  justify-self: start;
}
.gh-calendar-wrap {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  width: max-content;
}
.gh-day-labels {
  display: grid;
  grid-template-rows: repeat(7, 11px);
  gap: 3px;
  width: 11px;
  font-size: 0.62rem;
  line-height: 11px;
  text-align: center;
  color: var(--text-muted);
}
.gh-weeks {
  display: flex;
  gap: 3px;
}
.gh-week {
  display: grid;
  grid-template-rows: repeat(7, 11px);
  gap: 3px;
}
.gh-day {
  width: 11px;
  height: 11px;
  border-radius: 2px;
  background: var(--gh-level-0);
  transition: outline 0.15s ease, transform 0.1s ease;
  outline: 1px solid transparent;
}
.gh-day.level-0 { background: var(--gh-level-0); }
.gh-day.level-1 { background: var(--gh-level-1); }
.gh-day.level-2 { background: var(--gh-level-2); }
.gh-day.level-3 { background: var(--gh-level-3); }
.gh-day.level-4 { background: var(--gh-level-4); }
.gh-day.is-empty { visibility: hidden; }
.gh-day[data-date]:hover {
  outline-color: var(--primary);
  transform: scale(1.15);
}
.gh-calendar-fallback {
  color: var(--text-secondary);
  font-size: 0.9rem;
}
.github-link {
  margin-top: 10px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* 贡献图自定义 tooltip */
.gh-tooltip {
  position: fixed;
  z-index: 1001;
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 500;
  background: var(--bg-overlay);
  color: var(--text);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  pointer-events: none;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.12s ease, transform 0.12s ease;
  white-space: nowrap;
}
.gh-tooltip.visible {
  opacity: 1;
  transform: translateY(0);
}