/* =========================================================
   玄武盾网络验证系统 · 应用骨架 (扁平化菜单)
   侧边栏 / 顶栏 / 内容区 布局
   ========================================================= */

*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--xw-bg);
  color: var(--xw-text);
  font-family: var(--xw-font-sans);
  font-size: var(--xw-text-base);
  line-height: var(--xw-leading-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body { background: var(--xw-bg) !important; }

.xw-skip-link {
  position: fixed; top: 8px; left: 8px; z-index: 9999;
  padding: 8px 12px; border-radius: var(--xw-radius-md);
  background: var(--xw-primary); color: #fff;
  transform: translateY(-150%); transition: transform 150ms ease;
}
.xw-skip-link:focus { transform: translateY(0); }

/* —— 主网格:侧栏 + 内容 —— */
.xw-shell {
  display: block;
  min-height: 100vh;
}

/* ============== 侧边栏 ============== */
.xw-side {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--xw-side-w);
  background: var(--xw-surface);
  border-right: 1px solid var(--xw-border);
  display: flex;
  flex-direction: column;
  z-index: var(--xw-z-side);
  transition: width var(--xw-dur-md) var(--xw-ease), transform var(--xw-dur-md) var(--xw-ease);
}

.xw-side__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 64px;
  padding: 14px 12px 14px 16px;
  border-bottom: 1px solid var(--xw-border);
  flex-shrink: 0;
}
.xw-side__logo {
  width: 32px; height: 32px;
  border-radius: var(--xw-radius-md);
  display: grid; place-items: center;
  overflow: hidden;
  box-shadow: var(--xw-shadow-sm);
}
.xw-side__logo svg { width: 100%; height: 100%; display: block; }
.xw-side__logo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.xw-side__name {
  font-size: var(--xw-text-md);
  font-weight: var(--xw-weight-semibold);
  color: var(--xw-text);
  letter-spacing: .01em;
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.xw-side__collapse {
  width: 32px; height: 32px; margin-left: auto; flex: 0 0 auto;
  display: inline-flex; align-items: center; justify-content: center;
  border: 0; border-radius: var(--xw-radius-md);
  background: transparent; color: var(--xw-text-soft); cursor: pointer;
  transition: color 150ms ease, background 150ms ease, transform 200ms ease;
}
.xw-side__collapse:hover { color: var(--xw-text); background: var(--xw-surface-2); }
.xw-side__collapse:focus-visible { outline: none; box-shadow: var(--xw-focus-ring); }
.xw-side__collapse svg { width: 18px; height: 18px; }

.xw-side__section + .xw-side__section { margin-top: 8px; }
}

/* 导航容器 */
.xw-side__nav {
  flex: 1;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 10px 8px 24px;
  scrollbar-width: thin;
}
.xw-side__nav::-webkit-scrollbar { width: 6px; }
.xw-side__nav::-webkit-scrollbar-thumb { background: var(--xw-border-strong); border-radius: 3px; }

/* 分组标题（不可点击，仅视觉区分） */
.xw-side__section-title {
  padding: 10px 10px 6px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--xw-text-soft);
  user-select: none;
}

/* 菜单项（核心样式） */
.xw-side__item {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 10px 12px;
  margin: 2px 0;
  border-radius: var(--xw-radius-md);
  color: var(--xw-text-muted);
  font-size: 14px;
  text-decoration: none;
  transition: background 150ms ease, color 150ms ease, box-shadow 150ms ease;
  position: relative;
  min-width: 0;
  overflow-wrap: anywhere;
}

.xw-side__item-icon { width: 20px; height: 20px; flex: 0 0 20px; }
.xw-side__item-label { min-width: 0; overflow-wrap: anywhere; white-space: normal; line-height: var(--xw-leading-snug); }

/* 悬停状态 */
.xw-side__item:hover {
  background: var(--xw-surface-2);
  color: var(--xw-text);
}

/* 当前激活状态 - 参考 AdminLTE/Tabler */
.xw-side__item.is-active {
  background: var(--xw-primary-soft);
  color: var(--xw-primary);
  font-weight: var(--xw-weight-semibold);
  box-shadow: none;
}
.xw-side__item.is-active::before {
  content: "";
  position: absolute;
  left: -8px; top: 10px; bottom: 10px;
  width: 3px; border-radius: 0 3px 3px 0;
  background: var(--xw-primary);
}

/* 键盘聚焦 */
.xw-side__item:focus-visible {
  outline: none;
  box-shadow: var(--xw-focus-ring);
}

/* 底部版权 */
.xw-side__foot {
  flex-shrink: 0;
  padding: 12px 16px;
  border-top: 1px solid var(--xw-border);
  font-size: 11px;
  color: var(--xw-text-soft);
  line-height: var(--xw-leading-snug);
  display: flex; align-items: center; justify-content: center; gap: 7px;
  text-align: center;
}
.xw-side__status-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--xw-success); box-shadow: 0 0 0 3px var(--xw-success-soft);
}
.xw-side__foot-text { white-space: nowrap; }

/* —— 移动端汉堡按钮 —— */
.xw-side__burger {
  display: none;
  position: fixed;
  top: 12px; left: 12px;
  z-index: calc(var(--xw-z-side) + 1);
  width: 36px; height: 36px;
  border: 1px solid var(--xw-border);
  background: var(--xw-surface);
  border-radius: var(--xw-radius-md);
  cursor: pointer;
  align-items: center; justify-content: center;
  color: var(--xw-text);
  box-shadow: var(--xw-shadow-sm);
}
.xw-side__burger svg { width: 18px; height: 18px; }
.xw-side__mask {
  display: block;
  position: fixed; inset: 0;
  background: rgba(15,23,42,.4);
  z-index: calc(var(--xw-z-side) - 1);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--xw-dur-sm) var(--xw-ease), visibility 0s linear var(--xw-dur-sm);
}

/* ============== 顶栏 ============== */
.xw-topbar {
  position: fixed;
  top: 0;
  left: var(--xw-side-w);
  right: 0;
  height: var(--xw-topbar-h);
  background: var(--xw-surface);
  border-bottom: 1px solid var(--xw-border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
  z-index: var(--xw-z-topbar);
  transition: left var(--xw-dur-md) var(--xw-ease);
}

/* 桌面折叠态 */
body.is-side-collapsed .xw-side { width: 76px; }
body.is-side-collapsed .xw-topbar { left: 76px; }
body.is-side-collapsed .xw-main { margin-left: 76px; }
body.is-side-collapsed .xw-side__brand { justify-content: center; padding-inline: 12px; }
body.is-side-collapsed .xw-side__name,
body.is-side-collapsed .xw-side__item-label,
body.is-side-collapsed .xw-side__foot-text { display: none; }
body.is-side-collapsed .xw-side__collapse {
  position: absolute; top: 48px; right: -13px;
  width: 26px; height: 26px;
  background: var(--xw-surface); border: 1px solid var(--xw-border);
  box-shadow: var(--xw-shadow-sm); transform: rotate(180deg);
}
body.is-side-collapsed .xw-side__section-title {
  height: 14px; padding: 0; margin: 12px 9px 6px;
  overflow: hidden; color: transparent;
}
body.is-side-collapsed .xw-side__section-title::after {
  content: ""; display: block; height: 1px; margin-top: 7px; background: var(--xw-border);
}
body.is-side-collapsed .xw-side__item { justify-content: center; padding-inline: 0; }
body.is-side-collapsed .xw-side__item.is-active::before { left: -8px; }

.xw-topbar__crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--xw-text-sm);
  color: var(--xw-text-muted);
}
.xw-topbar__crumbs .xw-crumbs__sep { color: var(--xw-text-soft); }
.xw-topbar__crumbs strong {
  color: var(--xw-text);
  font-weight: var(--xw-weight-semibold);
  margin-left: 4px;
}
.xw-topbar__crumb-role {
  display: inline-flex; align-items: center; gap: 6px;
}
.xw-topbar__role-tag {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: var(--xw-radius-pill);
  background: var(--xw-primary-soft);
  color: var(--xw-primary);
  font-weight: var(--xw-weight-medium);
}
[data-theme="dark"] .xw-topbar__role-tag { color: #C7D2FE; }

.xw-topbar__spacer { flex: 1; }

/* 主题切换段控件 */
.xw-theme-toggle {
  display: inline-flex;
  background: var(--xw-surface-2);
  border-radius: var(--xw-radius-md);
  padding: 3px;
  gap: 2px;
}
.xw-theme-toggle button {
  padding: 4px 10px;
  border: 0;
  background: transparent;
  border-radius: 6px;
  font-size: 12px;
  color: var(--xw-text-muted);
  cursor: pointer;
  transition: background var(--xw-dur-xs) var(--xw-ease),
              color var(--xw-dur-xs) var(--xw-ease);
  font-family: inherit;
}
.xw-theme-toggle button:hover { color: var(--xw-text); }
.xw-theme-toggle button.is-active {
  background: var(--xw-surface);
  color: var(--xw-text);
  box-shadow: var(--xw-shadow-xs);
  font-weight: var(--xw-weight-medium);
}
.xw-theme-cycle {
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  display: inline-grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--xw-border);
  border-radius: var(--xw-radius-md);
  background: var(--xw-surface);
  color: var(--xw-text-muted);
  cursor: pointer;
  transition: color var(--xw-dur-xs) var(--xw-ease),
              border-color var(--xw-dur-xs) var(--xw-ease),
              background var(--xw-dur-xs) var(--xw-ease);
}
.xw-theme-cycle:hover {
  color: var(--xw-primary);
  border-color: var(--xw-primary);
  background: var(--xw-primary-soft);
}
.xw-theme-cycle__sun { display: none; }
.xw-theme-cycle__moon { display: block; }
[data-theme="dark"] .xw-theme-cycle__sun { display: block; }
[data-theme="dark"] .xw-theme-cycle__moon { display: none; }

/* ============== 主内容区 ============== */
.xw-main {
  margin-left: var(--xw-side-w);
  padding-top: var(--xw-topbar-h);
  min-height: 100vh;
  width: auto;
  box-sizing: border-box;
  transition: margin-left var(--xw-dur-md) var(--xw-ease);
  /* isolation: isolate breaks stacking context from sidebar,
     allowing dropdowns/popovers to render above fixed sidebar */
  isolation: isolate;
}
.xw-main__wrap {
  width: 100%;
  max-width: 100%;
  margin: 0;
  padding: 28px 32px 64px;
  box-sizing: border-box;
}

/* ============== 页面头 ============== */
.xw-page { display: block; }
.xw-page__head {
  margin-bottom: 24px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.xw-page__head-main {
  flex: 1 1 320px;
  min-width: 0;
}
.xw-page__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  flex-shrink: 0;
  padding-top: 4px;
}
.xw-page__crumb {
  font-size: var(--xw-text-sm);
  color: var(--xw-text-muted);
  margin-bottom: 8px;
}
.xw-page__crumb .xw-page__crumb-sep { margin: 0 6px; color: var(--xw-text-soft); }
.xw-page__title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--xw-text-2xl);
  font-weight: var(--xw-weight-semibold);
  color: var(--xw-text);
  margin: 0 0 6px;
  line-height: var(--xw-leading-tight);
}
.xw-page__title .xw-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--xw-success);
  box-shadow: 0 0 0 4px var(--xw-success-soft);
  flex-shrink: 0;
}
.xw-page__desc {
  font-size: var(--xw-text-sm);
  color: var(--xw-text-muted);
  margin: 0 0 20px;
}

/* ============== 响应式 ============== */
@media (max-width: 992px) {
  .xw-side { transform: translateX(-100%); }
  .xw-side.is-open { transform: translateX(0); }
  .xw-side__mask.is-open { opacity: 1; visibility: visible; pointer-events: auto; transition-delay: 0s; }
  .xw-side__burger { display: inline-flex; }
  .xw-topbar { left: 0; padding-left: 60px; }
  .xw-main { margin-left: 0; }
  .xw-main__wrap { padding: 24px 16px 48px; }
  .xw-side__collapse { display: none; }
  body.is-side-collapsed .xw-side { width: var(--xw-side-w); }
  body.is-side-collapsed .xw-topbar { left: 0; }
  body.is-side-collapsed .xw-main { margin-left: 0; }
  body.is-side-collapsed .xw-side__name,
  body.is-side-collapsed .xw-side__item-label,
  body.is-side-collapsed .xw-side__foot-text { display: block; }
  body.is-side-collapsed .xw-side__section-title {
    height: auto; padding: 10px 10px 6px; margin: 0; color: var(--xw-text-soft);
  }
  body.is-side-collapsed .xw-side__section-title::after { display: none; }
  body.is-side-collapsed .xw-side__item { justify-content: flex-start; padding-inline: 12px; }
}

@media (max-width: 640px) {
  .xw-topbar { padding: 0 12px 0 56px; gap: 8px; }
  .xw-topbar__crumbs { font-size: 12px; }
  .xw-theme-toggle button { padding: 4px 8px; font-size: 11px; }
}

@media (prefers-reduced-motion: reduce) {
  .xw-side, .xw-topbar, .xw-main, .xw-side__collapse, .xw-side__item { transition: none !important; }
}

/* —— 老容器兼容 —— */
.xw-warp {
  display: block;
  min-height: 100vh;
}