/* ═══════════════════════════════════════════════════════════════════════════════
   NAV V2 — 全站共享导航栏样式
   风格：全宽固定顶栏 + 编号式链接 + 底部扫描线装饰
   ═══════════════════════════════════════════════════════════════════════════════ */

/* ── 变量 ── */
.nuv-nav {
  --nuv-h: 64px;
  --nuv-bg: rgba(3, 7, 5, 0.96);
  --nuv-border: rgba(52, 211, 153, 0.12);
  --nuv-text: rgba(200, 220, 210, 0.75);
  --nuv-text-hi: #ecfdf5;
  --nuv-green: #34d399;
  --nuv-green-dim: rgba(52, 211, 153, 0.18);
  --nuv-transition: 0.22s cubic-bezier(0.22, 1, 0.36, 1);
}

/* ── 容器 ── */
.nuv-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: var(--nuv-bg);
  border-bottom: 1px solid var(--nuv-border);
  height: var(--nuv-h);
  box-shadow:
    0 1px 0 rgba(52, 211, 153, 0.04),
    0 8px 32px rgba(0, 0, 0, 0.45);
  transition:
    background 0.3s ease,
    border-color 0.3s ease,
    transform 0.38s cubic-bezier(0.22, 1, 0.36, 1);
}

/* 滚动后加深 */
.nuv-nav.is-scrolled {
  background: rgba(2, 5, 3, 0.99);
  border-bottom-color: rgba(52, 211, 153, 0.2);
  box-shadow:
    0 1px 0 rgba(52, 211, 153, 0.06),
    0 12px 40px rgba(0, 0, 0, 0.6);
}

/* ── 顶部 1px 彩线 ── */
.nuv-nav__top-line {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg,
    transparent 0%,
    rgba(52, 211, 153, 0.35) 20%,
    rgba(56, 189, 248, 0.45) 50%,
    rgba(52, 211, 153, 0.35) 80%,
    transparent 100%);
  pointer-events: none;
}

/* ── 内层布局：三段式（略减左右留白、加宽链接区）── */
.nuv-nav__inner {
  display: flex;
  align-items: center;
  height: var(--nuv-h);
  padding: 0 clamp(14px, 2vw, 22px);
  gap: 0;
}

/* ── 品牌区 ── */
.nuv-nav__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.nuv-nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--nuv-text-hi);
  transition: opacity var(--nuv-transition);
}
.nuv-nav__logo:hover { opacity: 0.85; }

.nuv-nav__logo-mark {
  width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center;
  color: var(--nuv-green);
  flex-shrink: 0;
}
.nuv-nav__logo-mark svg { width: 100%; height: 100%; display: block; }
.nuv-nav__logo-mark img { width: 100%; height: 100%; display: block; object-fit: contain; border-radius: 3px; }

.nuv-nav__logo-text {
  font-family: 'JetBrains Mono', 'Cascadia Code', 'Fira Code', ui-monospace, monospace;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--nuv-text-hi);
}

/* 运行状态指示点 */
.nuv-nav__status-dot {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--nuv-green);
  box-shadow: 0 0 8px rgba(52, 211, 153, 0.6);
  flex-shrink: 0;
}
.nuv-nav__status-pulse {
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 1px solid rgba(52, 211, 153, 0.5);
  animation: nuvNavPulse 2.4s ease-in-out infinite;
}

@keyframes nuvNavPulse {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.7); opacity: 0; }
}

/* ── 垂直分隔线 ── */
.nuv-nav__divider {
  width: 1px;
  height: 28px;
  background: linear-gradient(180deg,
    transparent,
    rgba(52, 211, 153, 0.2) 30%,
    rgba(52, 211, 153, 0.2) 70%,
    transparent);
  margin: 0 18px;
  flex-shrink: 0;
}

/* ── 导航链接列表 ── */
.nuv-nav__links {
  display: flex;
  align-items: center;
  gap: 10px;
  list-style: none;
  margin: 0; padding: 0;
  flex: 1;
}

/* 单个链接 */
.nuv-nav__link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  text-decoration: none;
  border-radius: 0;
  transition: color var(--nuv-transition);
  color: var(--nuv-text);
  white-space: nowrap;
}

/* 编号前缀 */
.nuv-nav__link-num {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 10px;
  font-weight: 600;
  color: rgba(52, 211, 153, 0.35);
  line-height: 1;
  transition: color var(--nuv-transition);
  letter-spacing: 0.04em;
}

/* 链接文字 */
.nuv-nav__link-text {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1;
}

/* 底部指示条（从左滑入）*/
.nuv-nav__link-bar {
  position: absolute;
  bottom: -1px; left: 18px; right: 18px;
  height: 2px;
  background: var(--nuv-green);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.28s cubic-bezier(0.34, 1.35, 0.64, 1);
  border-radius: 1px;
}

/* hover */
.nuv-nav__link:hover { color: var(--nuv-text-hi); }
.nuv-nav__link:hover .nuv-nav__link-num { color: rgba(52, 211, 153, 0.7); }
.nuv-nav__link:hover .nuv-nav__link-bar { transform: scaleX(1); }

/* 激活 */
.nuv-nav__link.active,
.nuv-nav__link[aria-current="page"] { color: var(--nuv-text-hi); }
.nuv-nav__link.active .nuv-nav__link-num,
.nuv-nav__link[aria-current="page"] .nuv-nav__link-num { color: var(--nuv-green); }
.nuv-nav__link.active .nuv-nav__link-bar,
.nuv-nav__link[aria-current="page"] .nuv-nav__link-bar {
  transform: scaleX(1);
  background: linear-gradient(90deg, var(--nuv-green), rgba(56, 189, 248, 0.8));
}

/* ── data-nav-active 自动激活 ── */
[data-nav-active="home"]           .nuv-nav__link[data-nav="home"],
[data-nav-active="taocan"]         .nuv-nav__link[data-nav="taocan"],
[data-nav-active="diary-openclaw"] .nuv-nav__link[data-nav="diary-openclaw"],
[data-nav-active="help"]           .nuv-nav__link[data-nav="help"] {
  color: var(--nuv-text-hi);
}
[data-nav-active="home"]           .nuv-nav__link[data-nav="home"]           .nuv-nav__link-num,
[data-nav-active="taocan"]         .nuv-nav__link[data-nav="taocan"]         .nuv-nav__link-num,
[data-nav-active="diary-openclaw"] .nuv-nav__link[data-nav="diary-openclaw"] .nuv-nav__link-num,
[data-nav-active="help"]           .nuv-nav__link[data-nav="help"]           .nuv-nav__link-num {
  color: var(--nuv-green);
}
[data-nav-active="home"]           .nuv-nav__link[data-nav="home"]           .nuv-nav__link-bar,
[data-nav-active="taocan"]         .nuv-nav__link[data-nav="taocan"]         .nuv-nav__link-bar,
[data-nav-active="diary-openclaw"] .nuv-nav__link[data-nav="diary-openclaw"] .nuv-nav__link-bar,
[data-nav-active="help"]           .nuv-nav__link[data-nav="help"]           .nuv-nav__link-bar {
  transform: scaleX(1);
  background: linear-gradient(90deg, var(--nuv-green), rgba(56, 189, 248, 0.8));
}

/* ── 右侧操作区 ── */
.nuv-nav__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  margin-left: auto;
}

/* ── 语言切换 ── */
.nuv-nav__lang { position: relative; }
.nuv-nav__lang-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  color: var(--nuv-text);
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: color var(--nuv-transition), border-color var(--nuv-transition), background var(--nuv-transition);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.nuv-nav__lang-btn:hover {
  color: var(--nuv-text-hi);
  border-color: rgba(52, 211, 153, 0.3);
  background: rgba(52, 211, 153, 0.05);
}
.nuv-nav__lang-btn .lang-icon,
.nuv-nav__lang-btn .lang-chevron {
  flex-shrink: 0;
  opacity: 0.6;
  transition: opacity var(--nuv-transition), transform 0.22s ease;
}
.nuv-nav__lang-btn:hover .lang-icon,
.nuv-nav__lang-btn:hover .lang-chevron { opacity: 0.9; }
.nuv-nav__lang-btn[aria-expanded="true"] .lang-chevron,
.nuv-nav .lang-dropdown.open .lang-chevron { transform: rotate(180deg); }

/* 语言下拉菜单 */
.nuv-nav .lang-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 168px;
  background: rgba(6, 12, 8, 0.98);
  border: 1px solid rgba(52, 211, 153, 0.15);
  border-radius: 10px;
  padding: 6px;
  list-style: none;
  margin: 0;
  z-index: 200;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(52, 211, 153, 0.06);
  opacity: 0;
  transform: translateY(-6px) scale(0.97);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.22s cubic-bezier(0.22, 1, 0.36, 1);
}
/* common.js 将 open 挂在父级 #lang-dropdown 上 */
.nuv-nav .lang-dropdown.open .lang-menu {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}
.nuv-nav .lang-menu a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 10px;
  font-size: 12.5px;
  font-weight: 600;
  color: rgba(180, 210, 195, 0.72);
  border-radius: 6px;
  transition: color var(--nuv-transition), background var(--nuv-transition);
  text-decoration: none;
}
.nuv-nav .lang-menu a:hover,
.nuv-nav .lang-menu a[aria-current="true"] {
  color: var(--nuv-text-hi);
  background: rgba(52, 211, 153, 0.08);
}

/* 国旗 emoji */
.lang-menu__flag {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px; height: 22px;
  font-size: 16px;
  line-height: 1;
  filter: saturate(0.85);
  transition: filter var(--nuv-transition), transform var(--nuv-transition);
}
.nuv-nav .lang-menu a:hover .lang-menu__flag,
.nuv-nav .lang-menu a[aria-current="true"] .lang-menu__flag {
  filter: saturate(1.1);
  transform: scale(1.1);
}
.lang-menu__name { flex: 1; }

/* ── 用户区 ── */
.nuv-nav__user-area[hidden],
.nuv-nav__login-btn[hidden] { display: none !important; }

.nuv-nav__user-area {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nuv-nav__user-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  border-radius: 8px;
  border: 1px solid rgba(52, 211, 153, 0.2);
  background: rgba(52, 211, 153, 0.08);
  text-decoration: none;
  transition: border-color var(--nuv-transition), background var(--nuv-transition);
}
.nuv-nav__user-btn:hover {
  border-color: rgba(52, 211, 153, 0.4);
  background: rgba(52, 211, 153, 0.14);
}
.nav-avatar-circle {
  display: flex; align-items: center; justify-content: center;
  width: 100%; height: 100%;
}
.nav-avatar-letter {
  font-size: 13px; font-weight: 800;
  color: var(--nuv-green);
}
.nuv-nav__logout-btn {
  padding: 5px 12px;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  color: rgba(200, 210, 205, 0.6);
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: color var(--nuv-transition), border-color var(--nuv-transition);
}
.nuv-nav__logout-btn:hover {
  color: var(--nuv-text-hi);
  border-color: rgba(255, 255, 255, 0.2);
}

/* ── 登录按钮（实心绿色）── */
.nuv-nav__login-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 8px 18px;
  background: var(--nuv-green);
  border: none;
  border-radius: 6px;
  color: #021209;
  font: inherit;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.02em;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--nuv-transition), box-shadow var(--nuv-transition), transform var(--nuv-transition);
  box-shadow: 0 4px 18px rgba(52, 211, 153, 0.28);
}
.nuv-nav__login-btn svg { opacity: 0.7; flex-shrink: 0; }
.nuv-nav__login-btn:hover {
  background: #3de8a8;
  box-shadow: 0 6px 24px rgba(52, 211, 153, 0.42);
  transform: translateY(-1px);
}
.nuv-nav__login-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 10px rgba(52, 211, 153, 0.22);
}

/* ── 移动端切换按钮 ── */
.nuv-nav__toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 38px; height: 38px;
  padding: 0;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  cursor: pointer;
  transition: border-color var(--nuv-transition), background var(--nuv-transition);
}
.nuv-nav__toggle:hover {
  border-color: rgba(52, 211, 153, 0.3);
  background: rgba(52, 211, 153, 0.05);
}
.nuv-nav__toggle-line {
  display: block;
  width: 18px; height: 1.5px;
  background: rgba(200, 220, 210, 0.75);
  border-radius: 1px;
  transition: transform 0.25s ease, opacity 0.2s ease, width 0.22s ease;
}
.nuv-nav__toggle.is-open .nuv-nav__toggle-line:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nuv-nav__toggle.is-open .nuv-nav__toggle-line:nth-child(2) { opacity: 0; width: 0; }
.nuv-nav__toggle.is-open .nuv-nav__toggle-line:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── 底部扫描线装饰 ── */
.nuv-nav__bottom-line {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg,
    transparent 0%,
    var(--nuv-border) 15%,
    rgba(56, 189, 248, 0.2) 50%,
    var(--nuv-border) 85%,
    transparent 100%);
  pointer-events: none;
  overflow: hidden;
}
.nuv-nav__bottom-line::after {
  content: '';
  position: absolute;
  top: 0; left: -40%;
  width: 35%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(52, 211, 153, 0.7), transparent);
  animation: nuvNavScan 4s ease-in-out infinite;
}
@keyframes nuvNavScan {
  0%   { left: -40%; opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 1; }
  100% { left: 110%; opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .nuv-nav__bottom-line::after,
  .nuv-nav__status-pulse { animation: none; }
}

/* ── 隐藏/显示（滚动感知）──
   仅 .nav-hidden 时写 transform，避免常驻 translateZ(0) 使子元素 position:fixed 相对顶栏定位导致抽屉不可见 ── */
.nuv-nav {
  will-change: transform;
}
.nuv-nav.nav-hidden {
  transform: translateY(-100%);
  transition:
    background 0.3s ease,
    border-color 0.3s ease,
    transform 0.25s cubic-bezier(0.4, 0, 1, 1);
}

/* ── 补偿顶部高度（通用）：dark-theme 等将 :root --nav-stack-clearance 设为 104px；未定义时回落为 64px（与栏高一致）── */
main.page-main {
  padding-top: calc(env(safe-area-inset-top, 0px) + var(--nav-stack-clearance, 64px)) !important;
}

/* ── 移动端：菜单遮罩（由 nav-v2.js 插入 #nuv-nav-mobile-backdrop）── */
.nuv-nav-mobile-backdrop {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  top: var(--nuv-h);
  bottom: 0;
  z-index: 998;
  background: rgba(2, 8, 5, 0.52);
  -webkit-backdrop-filter: blur(5px);
  backdrop-filter: blur(5px);
}
.nuv-nav-mobile-backdrop.is-visible {
  display: block;
}

/* ── 响应式：移动端 ── */
@media (max-width: 768px) {
  .nuv-nav__inner {
    padding: 0 12px;
    gap: 6px;
    justify-content: space-between;
  }

  .nuv-nav__divider,
  .nuv-nav__status-dot {
    display: none;
  }

  /* 抽屉不占顶栏 flex 宽度，避免挤出右侧语言 / 登录 */
  .nuv-nav__links {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    position: fixed;
    top: calc(var(--nuv-h) + 10px);
    left: 50%;
    right: auto;
    width: min(calc(100vw - 16px), 440px);
    margin: 0;
    padding: 14px 14px 16px;
    list-style: none;
    background: rgba(4, 12, 8, 0.98);
    border: 1px solid rgba(52, 211, 153, 0.22);
    border-radius: 16px;
    box-shadow:
      0 20px 50px rgba(0, 0, 0, 0.55),
      0 0 0 1px rgba(52, 211, 153, 0.06);
    transform: translate(-50%, calc(-100% - 28px));
    opacity: 0;
    pointer-events: none;
    transition: transform 0.32s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.24s ease;
    z-index: 1001;
    flex: 0 0 auto;
    min-width: 0;
    max-height: min(72vh, 420px);
    overflow-x: hidden;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .nuv-nav__links.mobile-active {
    transform: translate(-50%, 0);
    opacity: 1;
    pointer-events: auto;
  }

  .nuv-nav__link {
    padding: 14px 12px;
    border-radius: 12px;
    border-bottom: none;
  }

  .nuv-nav__link:hover {
    background: rgba(52, 211, 153, 0.06);
  }

  .nuv-nav__link-bar {
    bottom: 6px;
    left: 10px;
    right: 10px;
  }

  .nuv-nav__link-text {
    font-size: 16px;
  }

  .nuv-nav__toggle {
    display: flex;
    flex-shrink: 0;
  }

  /* 顶栏保留：语言、登录/注册 或 用户区 */
  .nuv-nav__actions {
    flex: 1;
    min-width: 0;
    justify-content: flex-end;
    gap: 5px;
    margin-left: auto;
    overflow: visible;
  }

  .nuv-nav__lang {
    flex-shrink: 1;
    min-width: 0;
  }

  .nuv-nav__lang-btn {
    padding: 6px 7px;
    max-width: 32vw;
    min-width: 0;
  }

  .nuv-nav__lang-btn .lang-current-label {
    max-width: 60px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .nuv-nav__login-btn {
    padding: 6px 9px;
    font-size: 12px;
    gap: 4px;
    flex-shrink: 0;
  }

  .nuv-nav__login-btn span {
    max-width: 80px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .nuv-nav__user-area {
    flex-shrink: 0;
    gap: 4px;
  }

  .nuv-nav__logout-btn {
    padding: 5px 7px;
    font-size: 11px;
    max-width: 80px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .nuv-nav__logo-text {
    display: none;
  }

  .nuv-nav__logo-mark {
    width: 26px;
    height: 26px;
  }

  .nuv-nav .lang-menu {
    z-index: 1100;
  }
}

@media (max-width: 400px) {
  .nuv-nav__login-btn span {
    max-width: 64px;
  }
  .nuv-nav__lang-btn .lang-current-label {
    max-width: 48px;
  }
  .nuv-nav__actions {
    gap: 4px;
  }
}

@media (max-width: 360px) {
  /* 极窄屏：隐藏语言文字标签，只保留图标 */
  .nuv-nav__lang-btn .lang-current-label {
    display: none;
  }
  .nuv-nav__lang-btn {
    padding: 6px 7px;
  }
  .nuv-nav__login-btn span {
    max-width: 56px;
  }
  .nuv-nav__actions {
    gap: 4px;
  }
}