/* ============================================================
   theme.css — 三个页面（管理端 / 归档 / 登录）共用的设计系统
   ============================================================
   主题优先级: data-theme 属性 > 系统偏好
   页面各自的组件样式仍在自己的 <style> 里，但一律引用这里的 token。
   ============================================================ */

/* ── 设计 token：浅色（默认） ───────────────────────── */
:root {
  --bg:          #f4f6fa;
  --bg-grad-1:   #e8ebf8;
  --bg-grad-2:   #f6eff5;
  --bg-grad-3:   #e4eaf8;
  --card:        rgba(255, 255, 255, 0.85);
  --card-solid:  #ffffff;
  --card-soft:   rgba(250, 251, 253, 0.7);
  --text:        #1e2532;
  --text-strong: #0f1624;
  --muted:       #717a8a;
  --border:      rgba(226, 230, 238, 0.8);
  --border-soft: rgba(238, 240, 245, 0.6);
  --field:       rgba(245, 247, 251, 0.7);

  --accent:      #6355df;
  --accent-2:    #a36be5;
  --accent-soft: rgba(99, 85, 223, 0.08);
  --accent-ring: rgba(99, 85, 223, 0.25);

  --ok:          #0e995a;
  --ok-soft:     #e3f6ed;
  --warn:        #c27608;
  --warn-soft:   #fdf2df;
  --err:         #db3c3c;
  --err-soft:    #fdecfe;

  --shadow-sm:   0 2px 6px rgba(18, 22, 38, 0.04);
  --shadow-md:   0 8px 24px rgba(18, 22, 38, 0.08);
  --shadow-lg:   0 24px 48px rgba(65, 55, 120, 0.12);

  --radius:      16px;
  --radius-sm:   10px;
  --font: "Inter", "Segoe UI", "Hiragino Sans", "Microsoft YaHei", system-ui, sans-serif;
  --mono: "JetBrains Mono", Consolas, Menlo, monospace;
  --tr: .25s cubic-bezier(.2, .8, .2, 1);
  --tr-fast: .15s cubic-bezier(.2, .8, .2, 1);
}

/* ── 设计 token：深色 ─────────────────────────────── */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:          #0d0e12;
    --bg-grad-1:   #151724;
    --bg-grad-2:   #191524;
    --bg-grad-3:   #121822;
    --card:        rgba(22, 24, 32, 0.7);
    --card-solid:  #161820;
    --card-soft:   rgba(28, 30, 42, 0.5);
    --text:        #e9ecf2;
    --text-strong: #f6f8fb;
    --muted:       #9199a8;
    --border:      rgba(48, 54, 68, 0.6);
    --border-soft: rgba(40, 46, 58, 0.4);
    --field:       rgba(32, 36, 48, 0.5);

    --accent:      #a294f5;
    --accent-2:    #d0a6f5;
    --accent-soft: rgba(162, 148, 245, 0.12);
    --accent-ring: rgba(162, 148, 245, 0.3);

    --ok:          #49d899;
    --ok-soft:     #173b2e;
    --warn:        #efa846;
    --warn-soft:   #3d2e12;
    --err:         #f27373;
    --err-soft:    #422628;

    --shadow-sm:   0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-md:   0 12px 32px rgba(0, 0, 0, 0.5);
    --shadow-lg:   0 24px 64px rgba(0, 0, 0, 0.7);
  }
}

:root[data-theme="dark"] {
  --bg:          #0d0e12;
  --bg-grad-1:   #151724;
  --bg-grad-2:   #191524;
  --bg-grad-3:   #121822;
  --card:        rgba(22, 24, 32, 0.7);
  --card-solid:  #161820;
  --card-soft:   rgba(28, 30, 42, 0.5);
  --text:        #e9ecf2;
  --text-strong: #f6f8fb;
  --muted:       #9199a8;
  --border:      rgba(48, 54, 68, 0.6);
  --border-soft: rgba(40, 46, 58, 0.4);
  --field:       rgba(32, 36, 48, 0.5);

  --accent:      #a294f5;
  --accent-2:    #d0a6f5;
  --accent-soft: rgba(162, 148, 245, 0.12);
  --accent-ring: rgba(162, 148, 245, 0.3);

  --ok:          #49d899;
  --ok-soft:     #173b2e;
  --warn:        #efa846;
  --warn-soft:   #3d2e12;
  --err:         #f27373;
  --err-soft:    #422628;

  --shadow-sm:   0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-md:   0 12px 32px rgba(0, 0, 0, 0.5);
  --shadow-lg:   0 24px 64px rgba(0, 0, 0, 0.7);
}

/* ── 基础 ─────────────────────────────────────────── */
* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
  background:
    radial-gradient(1200px 720px at 10% -10%, var(--bg-grad-1), transparent 70%),
    radial-gradient(1000px 600px at 90% 10%, var(--bg-grad-2), transparent 60%),
    radial-gradient(1100px 800px at 50% 110%, var(--bg-grad-3), transparent 70%),
    var(--bg);
  background-attachment: fixed;
  min-height: 100vh;
}

::selection { background: var(--accent-ring); }

/* 滚动条（Chromium / WebKit） */
::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--muted) 32%, transparent);
  border-radius: 8px; border: 3px solid transparent; background-clip: content-box;
}
::-webkit-scrollbar-thumb:hover { background-color: color-mix(in srgb, var(--muted) 55%, transparent); }

/* ── 主题切换按钮（三页共用） ───────────────────────── */
.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; flex: none; padding: 0;
  border: 1px solid var(--border); border-radius: 10px;
  background: var(--card); color: var(--text);
  cursor: pointer; font-size: 15px; line-height: 1;
  transition: border-color var(--tr), transform .07s, background var(--tr);
}
.theme-toggle:hover { border-color: var(--accent); background: var(--accent-soft); }
.theme-toggle:active { transform: scale(.93); }

/* ── 统一 Header 三段式布局 CSS（管理页与归档页共用） ─────────── */
header.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  padding: 0 24px;
  background: color-mix(in srgb, var(--card-solid) 85%, transparent);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid var(--border-soft);
  position: sticky;
  top: 0;
  z-index: 1000 !important;
  overflow: visible !important;
}

.header-brand { display: flex; align-items: center; gap: 10px; flex: none; }
.header-brand .brand-logo {
  display: flex; align-items: center; gap: 9px;
  text-decoration: none; color: var(--text-strong);
  font-weight: 750; font-size: 16px; letter-spacing: -0.01em;
}
.header-brand .brand-logo:hover { opacity: 0.9; }
.header-brand .brand-icon-img {
  width: 26px; height: 26px; border-radius: 7px; flex: none;
  box-shadow: 0 2px 8px color-mix(in srgb, var(--accent) 30%, transparent);
  transition: transform var(--tr-fast);
}
.header-brand .brand-logo:hover .brand-icon-img { transform: scale(1.06); }
.header-brand .brand-icon { font-size: 18px; }

.header-nav { display: flex; align-items: center; gap: 12px; overflow: visible !important; }
.header-nav .nav-tabs {
  display: inline-flex;
  background: color-mix(in srgb, var(--card) 60%, var(--bg) 40%);
  padding: 3px; border-radius: 999px; gap: 2px;
  border: 1px solid var(--border-soft);
}
.header-nav .nav-tab {
  border: none; background: transparent; color: var(--muted);
  padding: 5px 14px; border-radius: 999px; cursor: pointer; font-size: 13px;
  font-weight: 500; transition: var(--tr); display: inline-flex; align-items: center; gap: 5px;
  white-space: nowrap; flex-shrink: 0;
}
.header-nav .nav-tab:hover { color: var(--text); }
.header-nav .nav-tab.active {
  background: var(--card-solid); color: var(--text-strong);
  font-weight: 650; box-shadow: var(--shadow-sm);
}

/* 成员工具下拉组件（z-index: 9999 绝对浮于最顶层 + 鼠标安全热区 bridge） */
.header-dropdown { position: relative; display: inline-block; overflow: visible !important; z-index: 9999 !important; }
.header-dropdown .dropdown-toggle { white-space: nowrap; }
.header-dropdown .dropdown-menu {
  position: absolute; top: 100%; left: 0;
  margin-top: 4px;
  background: var(--card-solid); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 6px; min-width: 185px;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.18); backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: none; flex-direction: column; gap: 2px; z-index: 9999 !important;
}
/* 鼠标防脱离安全桥（Hover Bridge）：透明填充 12px 间隙 */
.header-dropdown .dropdown-menu::before {
  content: ""; position: absolute; top: -12px; left: 0; right: 0; height: 12px; background: transparent;
}
.header-dropdown:hover .dropdown-menu,
.header-dropdown:focus-within .dropdown-menu,
.header-dropdown.open .dropdown-menu { display: flex; animation: navDlgIn .15s ease-out; }
@keyframes navDlgIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

.dropdown-item {
  border: none; background: transparent; color: var(--text);
  padding: 8px 12px; border-radius: 6px; cursor: pointer;
  font-size: 13px; text-align: left; display: flex; align-items: center; gap: 8px;
  transition: var(--tr-fast); width: 100%; white-space: nowrap; text-decoration: none;
}
.dropdown-item:hover { background: var(--accent-soft); color: var(--accent); }

.header-actions { display: flex; align-items: center; gap: 10px; flex: none; }
.header-actions .user-badge {
  font-size: 13px; color: var(--muted); font-weight: 500;
  display: inline-flex; align-items: center; gap: 4px; white-space: nowrap;
}
.subdued-btn {
  background: transparent !important;
  border-color: transparent !important;
  color: var(--muted) !important;
  box-shadow: none !important;
}
.subdued-btn:hover {
  color: var(--err) !important;
  background: var(--err-soft) !important;
}

/* ── 顶栏前后台切换专属胶囊按钮 ── */
.app-switch-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  font-size: 13px;
  font-weight: 600;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent) 0%, color-mix(in srgb, var(--accent-2) 85%, var(--accent)) 100%) !important;
  color: #ffffff !important;
  border: 1px solid color-mix(in srgb, var(--accent) 60%, white 25%) !important;
  box-shadow: 0 2px 8px color-mix(in srgb, var(--accent) 32%, transparent) !important;
  text-decoration: none;
  white-space: nowrap;
  transition: all var(--tr-fast) cubic-bezier(.2,.8,.2,1);
  cursor: pointer;
  line-height: 1.4;
}
.app-switch-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px color-mix(in srgb, var(--accent) 45%, transparent) !important;
  filter: brightness(1.08);
  color: #ffffff !important;
}
.app-switch-btn:active {
  transform: translateY(0) scale(0.97);
}

@media (max-width: 768px) {
  html, body {
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
  }
  header.app-header {
    padding: 8px max(12px, env(safe-area-inset-right)) 8px max(12px, env(safe-area-inset-left));
    height: auto;
    min-height: 52px;
    flex-wrap: wrap;
    gap: 8px 10px;
    width: 100%;
    max-width: 100vw;
    box-sizing: border-box;
  }
  .header-brand {
    flex: none;
  }
  .header-brand .brand-title {
    font-size: 15px;
  }
  .header-actions {
    gap: 5px;
    margin-left: auto;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    max-width: calc(100vw - 125px);
  }
  .header-actions::-webkit-scrollbar { display: none; }
  #btnReloadFile, #btnRestart { display: none !important; }
  .header-actions .btn {
    padding: 4px 8px;
    font-size: 12px;
    white-space: nowrap;
    flex-shrink: 0;
  }
  .header-actions .user-badge {
    font-size: 11px;
    max-width: 75px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex-shrink: 0;
  }
  .header-actions .app-switch-btn {
    padding: 4px 9px;
    font-size: 11.5px;
    flex-shrink: 0;
    white-space: nowrap;
  }
  .header-nav {
    order: 3;
    width: 100%;
    max-width: 100%;
    justify-content: flex-start;
    padding-bottom: 2px;
    margin-top: 2px;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    box-sizing: border-box;
  }
  .header-nav::-webkit-scrollbar { display: none; }
  .header-nav .nav-tabs {
    max-width: 100%;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    flex-shrink: 0;
    padding: 3px;
    gap: 3px;
  }
  .header-nav .nav-tabs::-webkit-scrollbar { display: none; }
  .header-nav .nav-tab {
    white-space: nowrap !important;
    flex-shrink: 0 !important;
    padding: 5px 12px;
    font-size: 12.5px;
    line-height: 1.4;
  }

  /* 移动端顶栏内嵌下拉菜单隐藏，统一使用根节点的 Action Sheet 抽屉 */
  .header-dropdown .dropdown-menu {
    display: none !important;
  }
}

/* 主题切换时的整体柔和过渡（首帧不过渡，避免闪烁） */
.theme-ready,
.theme-ready header,
.theme-ready .card,
.theme-ready aside,
.theme-ready input,
.theme-ready select,
.theme-ready textarea,
.theme-ready button { transition: background-color var(--tr), color var(--tr), border-color var(--tr); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ── 搜索高亮与卡片虚拟化 ───────────────────────── */
.search-highlight {
  background: color-mix(in srgb, #ffeb3b 70%, transparent);
  color: #111;
  padding: 1px 4px;
  border-radius: 4px;
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

:root[data-theme="dark"] .search-highlight {
  background: color-mix(in srgb, #ffd54f 60%, transparent);
  color: #fff;
}

/* 原生 CSS 视口卡片虚拟化：屏外卡片自动跳过 Layout/Reflow 计算 */
.msg-card, .virtual-card {
  content-visibility: auto;
  contain-intrinsic-size: 260px;
}

/* ════════════ 移动端全局（三页共用） ════════════ */
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; overflow-x: hidden; width: 100%; max-width: 100vw; }
body { min-height: 100vh; min-height: 100dvh; overflow-x: hidden; width: 100%; max-width: 100vw; }

@media (hover: none) {
  * { -webkit-tap-highlight-color: transparent; }
}

/* iOS 聚焦防缩放：触控宽度下所有表单控件 ≥16px */
@media (max-width: 900px) {
  input, select, textarea { font-size: 16px !important; }
}

/* 手机端共享 chrome */
@media (max-width: 640px) {
  .theme-toggle { width: 36px; height: 36px; font-size: 15px; flex-shrink: 0; }
  header {
    padding-left: max(12px, env(safe-area-inset-left));
    padding-right: max(12px, env(safe-area-inset-right));
  }
  img, video, audio { max-width: 100%; }
}