/* base.css (原 style.css 重新命名並合併原 styles.css 內容) */
/* ========== Global Base ========== */
body {
  font-family: "Segoe UI", Arial, sans-serif;
  background-color: var(--bg-body, #23272a);
  color: var(--text-main, #dcddde);
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: calc(var(--vvh, 1vh) * 100);
  display: flex;
  flex-direction: column;
  line-height: 1.55;
}

/* Header / Navigation */
/* 原本使用 header, .main-header 造成所有內頁自訂 <header> (例如 Spotify 控制台內部區塊) 被強制套用 sticky + 漸層，導致排版錯亂。
   僅保留 .main-header（或未來若需要站點級 header，請使用 .site-header class）。 */
.main-header {
  background: linear-gradient(
    135deg,
    #23272a,
    var(--primary-color, #5865f2) 80%
  );
  color: #fff;
  padding: 16px 0;
  text-align: center;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  position: sticky;
  top: 0;
  z-index: 1000;
}

/* Mobile/PWA stability overrides: keep nav fixed without collapsing/hiding */
@media (max-width: 991.98px) {
  .site-nav.nav-compact,
  .site-nav.nav-hidden-full {
    transform: none !important;
    opacity: 1 !important;
  }
}

/* 可選：統一站點級標題區域使用 .site-header （複製 .main-header 樣式）*/
.site-header {
  background: linear-gradient(
    135deg,
    #23272a,
    var(--primary-color, #5865f2) 80%
  );
  color: #fff;
  padding: 16px 0;
  text-align: center;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  position: sticky;
  top: 0;
  z-index: 1000;
}
/* 覆寫 styles.css 內後段較亮版本 */
.main-header {
  background: linear-gradient(135deg, #7289da, var(--primary-color, #5865f2));
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* Legacy nav selectors (scoped to .legacy-nav only，避免干擾新版 .site-nav） */
nav.legacy-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 32px;
  background: transparent;
  max-width: 1200px;
  margin: 0 auto;
  height: 60px;
}
.legacy-nav .nav-brand {
  flex: 0 0 auto;
}
.legacy-nav .nav-brand a {
  color: #fff;
  font-size: 1.4rem;
  font-weight: bold;
  text-decoration: none;
}
.legacy-nav .nav-container {
  flex: 1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-left: 40px;
}
.legacy-nav .nav-links {
  display: flex;
  list-style: none;
  gap: 12px;
  margin: 0;
  padding: 0;
}
.legacy-nav .nav-links li {
  margin: 0;
}
.legacy-nav .nav-links a,
.legacy-nav .nav-item {
  color: #dcddde;
  text-decoration: none;
  display: block;
  padding: 10px 18px;
  border-radius: 6px;
  transition:
    background 0.2s,
    color 0.2s;
  font-weight: 500;
}
.legacy-nav .nav-item {
  padding: 8px 16px;
  gap: 8px;
  display: flex;
  align-items: center;
}
.legacy-nav .nav-links a:hover,
.legacy-nav .nav-item:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}
.legacy-nav .nav-item i {
  font-size: 1.1em;
}

/* Dropdown 菜單 */
.dropdown {
  position: relative;
}
.dropdown-toggle {
  cursor: var(--cursor-pointer, pointer);
}
.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  background: var(--bg-darker, #2f3136);
  color: var(--text-main, #dcddde);
  border-radius: 10px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
  padding: 20px;
  min-width: 280px;
  display: none;
  flex-direction: column;
  align-items: flex-start;
}
.dropdown-menu.show {
  display: flex;
}
.dropdown-menu.business-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px;
  background: var(--bg-darker, #2f3136);
  color: var(--text-main, #dcddde);
  border-radius: 10px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}
.dropdown-menu .close-btn {
  display: none;
}
.dropdown-menu .user-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 16px;
}
.dropdown-menu .card-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin-bottom: 10px;
  border: 2px solid #5865f2;
}
.dropdown-menu .card-details {
  text-align: left;
  font-size: 0.9rem;
  color: var(--text-muted, #dcddde);
}
.dropdown-menu .detail-item {
  margin-bottom: 5px;
}
.dropdown-menu .username {
  color: #fff;
  font-weight: 600;
  font-size: 1.2rem;
}
.dropdown-menu .discord-id,
.dropdown-menu .nickname,
.dropdown-menu .email {
  color: #dcddde;
  font-size: 0.9rem;
}
.dropdown-menu .admin-icon {
  color: #ffcc00;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 4px;
}
.dropdown-menu .logout-btn {
  background: var(--primary-color, #5865f2);
  color: #fff;
  padding: 10px 20px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 500;
  width: 100%;
  text-align: center;
  box-sizing: border-box;
  margin-top: 10px;
  transition: background 0.2s;
}
.dropdown-menu .logout-btn:hover {
  background: #4752c4;
}
/* Neutralize Bootstrap blue active state on dropdown items (align with dark palette) */
.dropdown-menu .dropdown-item.active,
.dropdown-menu .dropdown-item:active {
  background: var(--bg-lighter, rgba(0, 0, 0, 0.08));
  color: var(--text-main, #f2f3f5);
}

/* User / Profile */
.nav-user {
  margin-left: 20px;
}
.user-profile {
  display: flex;
  align-items: center;
  gap: 12px;
}
.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
}
.username {
  color: #fff;
  font-weight: 500;
}
.login-btn,
.logout-btn {
  padding: 10px 20px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 500;
  transition: background 0.2s;
}
.login-btn {
  background: #fff;
  color: var(--primary-color, #5865f2);
}
.logout-btn {
  background: rgba(217, 255, 0, 0.1);
  color: #fff;
}
.login-btn:hover,
.logout-btn:hover {
  background: #4752c4;
  color: #fff;
}

/* 主內容 */
main {
  padding: 32px 16px;
  min-height: 80vh;
}
h1,
h2 {
  color: #fff;
}

/* 區塊卡片 */
.status,
.logs,
.reports,
.admin-card {
  background: var(--bg-darker, #2f3136);
  color: var(--text-main, #dcddde);
  padding: 24px;
  margin-bottom: 24px;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
  width: 100%;
  max-width: none;
  margin-left: 0;
  margin-right: 0;
}

/* 表單元素 */
textarea,
pre {
  width: 100%;
  border: 1px solid var(--border-subtle, #40444b);
  background: var(--bg-darker, #23272a);
  color: var(--text-main, #dcddde);
  border-radius: 6px;
  padding: 12px;
  box-sizing: border-box;
}

/* 按鈕（實際滑鼠樣式由 base.html 全域游標 & .cursor-pointer 控制，這裡不覆寫 cursor） */
button,
.dropdown-menu .logout-btn,
.login-btn,
.logout-btn {
  background: var(--primary-color, #5865f2);
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  font-weight: 500;
  margin-right: 10px;
  transition: background 0.2s;
}
button:hover,
.dropdown-menu .logout-btn:hover,
.login-btn:hover,
.logout-btn:hover {
  background: #4752c4;
}
button {
  margin-right: 10px;
  cursor: var(--cursor-pointer, pointer);
}

/* Sidebar / 管理側欄 */
.admin-sidebar {
  background: var(--bg-darker, #23272a);
  color: var(--text-main, #dcddde);
  border-right: 1px solid var(--border-subtle, #40444b);
  position: fixed;
  top: 0;
  left: 0;
  height: 100%;
  width: 220px;
  padding: 24px 0;
  box-shadow: 2px 0 8px rgba(0, 0, 0, 0.08);
}
.admin-main {
  margin-left: 240px;
}

/* 響應式 */
@media (max-width: 900px) {
  .admin-sidebar {
    position: static;
    width: 100%;
    height: auto;
    border-right: none;
    box-shadow: none;
  }
  .admin-main {
    margin-left: 0;
  }
}
@media (max-width: 768px) {
  nav.legacy-nav {
    flex-direction: column;
    padding: 0 8px;
    height: auto;
  }
  .legacy-nav .nav-links {
    flex-direction: column;
    width: 100%;
    gap: 0;
  }
  .legacy-nav .nav-links a,
  .legacy-nav .nav-item {
    padding: 12px 0;
    text-align: center;
  }
  .admin-sidebar {
    width: 100%;
    padding: 12px 0;
  }
  .admin-main {
    margin-left: 0;
  }
}

/* Mobile/PWA stability overrides: keep nav fixed without collapsing/hiding */
@media (max-width: 991.98px) {
  .site-nav.nav-compact,
  .site-nav.nav-hidden-full {
    padding: 0.4rem 0 !important;
    transform: none !important;
  }
  .site-nav.nav-compact .navbar-brand,
  .site-nav.nav-hidden-full .navbar-brand,
  .site-nav.nav-hidden-full .nav-primary,
  .site-nav.nav-hidden-full .nav-user {
    opacity: 1 !important;
    transform: none !important;
    max-width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    pointer-events: auto !important;
  }
  .site-nav.nav-hidden-full .nav-hamburger {
    position: static !important;
    top: auto !important;
    right: auto !important;
    transform: none !important;
    box-shadow: none !important;
  }
}

/* 滾動條樣式（保留原 base.css） */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-thumb {
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 3px;
}

/* 可擴充自訂區域占位 */
/* ===== End of merged styles ===== */
.alert {
  transition:
    opacity 0.4s ease,
    transform 0.4s ease;
}
.alert.fade-out {
  opacity: 0 !important;
  transform: translateY(-6px);
}

/* Flash container spacing tweak */
#flash-container {
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Utility spacing */
.mt-2x {
  margin-top: 1.25rem !important;
}
.mb-2x {
  margin-bottom: 1.25rem !important;
}
.py-2x {
  padding-top: 1.25rem !important;
  padding-bottom: 1.25rem !important;
}

/* Text helpers */
.text-faded {
  color: var(--text-muted, #b9bbbe) !important;
}
.text-accent {
  color: var(--primary-color, #5865f2) !important;
}

/* Card elevation utilities */
.elev-1 {
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}
.elev-2 {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

/* Smooth hover lift */
.lift-hover {
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease;
}
.lift-hover:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
}

/* Slim container variant */
.container-narrow {
  max-width: 860px;
  margin: 0 auto;
}

/* Footer refine */
footer.footer a:hover {
  color: #fff !important;
}

/* Accessible focus outline */
:focus-visible {
  outline: 2px solid #5865f2;
  outline-offset: 2px;
}

/* Button subtle variant */
.btn-subtle {
  background: rgba(255, 255, 255, 0.07);
  color: #fff;
}
.btn-subtle:hover {
  background: rgba(255, 255, 255, 0.15);
}

/* Responsive tune */
@media (max-width: 576px) {
  .navbar-brand {
    font-size: 0.95rem;
  }
  .footer .row > div {
    text-align: center !important;
  }
  .user-avatar {
    margin-right: 4px;
  }
}

/* Theme root (migrated) + 主題變數（支援淺色 / 深色 / 跟隨系統） */
:root {
  color-scheme: dark;
  /* 基本色票（預設深色） */
  --bg-body: #1e1f22;
  --bg-darker: #2b2d31;
  --bg-lighter: #313338;
  --text-main: #f2f3f5;
  --text-muted: #b5bac1;
  --border-subtle: rgba(255, 255, 255, 0.08);
  --primary-color: #5865f2;
}

/* 明亮主題：以 data-theme="light" 觸發 */
:root[data-theme="light"] {
  color-scheme: light;
  --bg-body: #f4f5f7;
  --bg-darker: #ffffff;
  --bg-lighter: #e5e7eb;
  --text-main: #111827;
  --text-muted: #6b7280;
  --border-subtle: rgba(15, 23, 42, 0.1);
  --primary-color: #4f46e5;
}

/* 跟隨系統：僅在未手動選擇時由 JS 套用 data-theme="system"，此區搭配 prefers-color-scheme */
@media (prefers-color-scheme: light) {
  :root[data-theme="system"] {
    color-scheme: light;
    --bg-body: #f4f5f7;
    --bg-darker: #ffffff;
    --bg-lighter: #e5e7eb;
    --text-main: #111827;
    --text-muted: #6b7280;
    --border-subtle: rgba(15, 23, 42, 0.1);
    --primary-color: #4f46e5;
  }
}

@media (prefers-color-scheme: dark) {
  :root[data-theme="system"] {
    color-scheme: dark;
    --bg-body: #1e1f22;
    --bg-darker: #2b2d31;
    --bg-lighter: #313338;
    --text-main: #f2f3f5;
    --text-muted: #b5bac1;
    --border-subtle: rgba(255, 255, 255, 0.08);
    --primary-color: #5865f2;
  }
}

/* ========== 淺色模式全站增強樣式 ========== */
/* 淺色模式：按鈕優化 */
:root[data-theme="light"] button,
:root[data-theme="light"] .btn-subtle {
  background: rgba(79, 70, 229, 0.1);
  color: #4f46e5;
}

:root[data-theme="light"] button:hover,
:root[data-theme="light"] .btn-subtle:hover {
  background: rgba(79, 70, 229, 0.2);
}

:root[data-theme="light"] .btn-primary,
:root[data-theme="light"] .login-btn,
:root[data-theme="light"] .logout-btn {
  background: #4f46e5;
  color: #ffffff;
}

:root[data-theme="light"] .btn-primary:hover,
:root[data-theme="light"] .login-btn:hover,
:root[data-theme="light"] .logout-btn:hover {
  background: #4338ca;
}

@media (prefers-color-scheme: light) {
  :root[data-theme="system"] button,
  :root[data-theme="system"] .btn-subtle {
    background: rgba(79, 70, 229, 0.1);
    color: #4f46e5;
  }
  
  :root[data-theme="system"] button:hover,
  :root[data-theme="system"] .btn-subtle:hover {
    background: rgba(79, 70, 229, 0.2);
  }
  
  :root[data-theme="system"] .btn-primary,
  :root[data-theme="system"] .login-btn,
  :root[data-theme="system"] .logout-btn {
    background: #4f46e5;
    color: #ffffff;
  }
  
  :root[data-theme="system"] .btn-primary:hover,
  :root[data-theme="system"] .login-btn:hover,
  :root[data-theme="system"] .logout-btn:hover {
    background: #4338ca;
  }
}

/* 淺色模式：表單元素 */
:root[data-theme="light"] input,
:root[data-theme="light"] select,
:root[data-theme="light"] textarea {
  background: #ffffff;
  border-color: #e2e8f0;
  color: #1e293b;
}

:root[data-theme="light"] input:focus,
:root[data-theme="light"] select:focus,
:root[data-theme="light"] textarea:focus {
  border-color: #4f46e5;
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

@media (prefers-color-scheme: light) {
  :root[data-theme="system"] input,
  :root[data-theme="system"] select,
  :root[data-theme="system"] textarea {
    background: #ffffff;
    border-color: #e2e8f0;
    color: #1e293b;
  }
  
  :root[data-theme="system"] input:focus,
  :root[data-theme="system"] select:focus,
  :root[data-theme="system"] textarea:focus {
    border-color: #4f46e5;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
  }
}

/* 淺色模式：Focus 輪廓 */
:root[data-theme="light"] :focus-visible {
  outline-color: #4f46e5;
}

@media (prefers-color-scheme: light) {
  :root[data-theme="system"] :focus-visible {
    outline-color: #4f46e5;
  }
}

/* 淺色模式：Skeleton 載入動畫 */
:root[data-theme="light"] .skeleton {
  background: #e5e7eb;
}

:root[data-theme="light"] .skeleton::after {
  background: linear-gradient(
    110deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.6) 40%,
    rgba(255, 255, 255, 0) 80%
  );
}

@media (prefers-color-scheme: light) {
  :root[data-theme="system"] .skeleton {
    background: #e5e7eb;
  }
  
  :root[data-theme="system"] .skeleton::after {
    background: linear-gradient(
      110deg,
      rgba(255, 255, 255, 0) 0%,
      rgba(255, 255, 255, 0.6) 40%,
      rgba(255, 255, 255, 0) 80%
    );
  }
}

/* 淺色模式：卡片和容器陰影 */
:root[data-theme="light"] .card,
:root[data-theme="light"] .panel {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
}

@media (prefers-color-scheme: light) {
  :root[data-theme="system"] .card,
  :root[data-theme="system"] .panel {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
  }
}

/* 淺色模式：側邊欄 */
:root[data-theme="light"] .admin-sidebar {
  background: #ffffff;
  border-right-color: #e2e8f0;
  box-shadow: 2px 0 8px rgba(0, 0, 0, 0.04);
}

@media (prefers-color-scheme: light) {
  :root[data-theme="system"] .admin-sidebar {
    background: #ffffff;
    border-right-color: #e2e8f0;
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.04);
  }
}

/* 淺色模式：下拉選單 */
:root[data-theme="light"] .dropdown-menu {
  background: #ffffff;
  border-color: #e2e8f0;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

:root[data-theme="light"] .dropdown-item:hover {
  background: #f1f5f9;
}

@media (prefers-color-scheme: light) {
  :root[data-theme="system"] .dropdown-menu {
    background: #ffffff;
    border-color: #e2e8f0;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  }
  
  :root[data-theme="system"] .dropdown-item:hover {
    background: #f1f5f9;
  }
}

/* 淺色模式：滾動條 */
:root[data-theme="light"] ::-webkit-scrollbar-track {
  background: #f1f5f9;
}

:root[data-theme="light"] ::-webkit-scrollbar-thumb {
  background: #cbd5e1;
}

:root[data-theme="light"] ::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

@media (prefers-color-scheme: light) {
  :root[data-theme="system"] ::-webkit-scrollbar-track {
    background: #f1f5f9;
  }
  
  :root[data-theme="system"] ::-webkit-scrollbar-thumb {
    background: #cbd5e1;
  }
  
  :root[data-theme="system"] ::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
  }
}

/* 淺色模式：導航欄 */
:root[data-theme="light"] .site-nav {
  background: rgba(255, 255, 255, 0.95);
  border-bottom-color: rgba(0, 0, 0, 0.06);
}

:root[data-theme="light"] .site-nav:not(.at-top) {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

:root[data-theme="light"] .site-nav .nav-link {
  color: #6b7280;
}

:root[data-theme="light"] .site-nav .nav-link:hover,
:root[data-theme="light"] .site-nav .nav-link:focus,
:root[data-theme="light"] .site-nav .nav-link.active-page {
  background: rgba(0, 0, 0, 0.05);
  color: #111827;
}

:root[data-theme="light"] .site-nav .nav-dropdown {
  background: #ffffff;
  border-color: #e2e8f0;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

:root[data-theme="light"] .site-nav .dropdown-item {
  color: #111827;
}

:root[data-theme="light"] .site-nav .dropdown-item:hover,
:root[data-theme="light"] .site-nav .dropdown-item:focus,
:root[data-theme="light"] .site-nav .dropdown-item.active {
  background: rgba(79, 70, 229, 0.08);
  color: #111827;
}

:root[data-theme="light"] .site-nav .dropdown-header {
  color: #6b7280;
}

:root[data-theme="light"] .site-nav .dropdown-sep {
  border-top-color: #e2e8f0;
}

/* 淺色模式：Mobile Drawer */
:root[data-theme="light"] .nav-drawer {
  background: #ffffff;
}

:root[data-theme="light"] .drawer-link,
:root[data-theme="light"] .drawer-toggle {
  color: #111827;
}

:root[data-theme="light"] .drawer-link:hover,
:root[data-theme="light"] .drawer-toggle:hover,
:root[data-theme="light"] .drawer-link:focus,
:root[data-theme="light"] .drawer-toggle:focus {
  background: rgba(0, 0, 0, 0.05);
  color: #111827;
}

:root[data-theme="light"] .drawer-sublink {
  color: #6b7280;
}

:root[data-theme="light"] .drawer-sublink:hover,
:root[data-theme="light"] .drawer-sublink:focus {
  background: rgba(0, 0, 0, 0.05);
  color: #111827;
}

:root[data-theme="light"] .sub-heading {
  color: #6b7280;
}

:root[data-theme="light"] .drawer-sub {
  border-left-color: #e2e8f0;
}

@media (prefers-color-scheme: light) {
  :root[data-theme="system"] .site-nav {
    background: rgba(255, 255, 255, 0.95);
    border-bottom-color: rgba(0, 0, 0, 0.06);
  }
  
  :root[data-theme="system"] .site-nav:not(.at-top) {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  }
  
  :root[data-theme="system"] .site-nav .nav-link {
    color: #6b7280;
  }
  
  :root[data-theme="system"] .site-nav .nav-link:hover,
  :root[data-theme="system"] .site-nav .nav-link:focus,
  :root[data-theme="system"] .site-nav .nav-link.active-page {
    background: rgba(0, 0, 0, 0.05);
    color: #111827;
  }
  
  :root[data-theme="system"] .site-nav .nav-dropdown {
    background: #ffffff;
    border-color: #e2e8f0;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  }
  
  :root[data-theme="system"] .site-nav .dropdown-item {
    color: #111827;
  }
  
  :root[data-theme="system"] .site-nav .dropdown-item:hover,
  :root[data-theme="system"] .site-nav .dropdown-item:focus,
  :root[data-theme="system"] .site-nav .dropdown-item.active {
    background: rgba(79, 70, 229, 0.08);
    color: #111827;
  }
  
  :root[data-theme="system"] .site-nav .dropdown-header {
    color: #6b7280;
  }
  
  :root[data-theme="system"] .site-nav .dropdown-sep {
    border-top-color: #e2e8f0;
  }
  
  /* 淺色模式：Mobile Drawer (system) */
  :root[data-theme="system"] .nav-drawer {
    background: #ffffff;
  }
  
  :root[data-theme="system"] .drawer-link,
  :root[data-theme="system"] .drawer-toggle {
    color: #111827;
  }
  
  :root[data-theme="system"] .drawer-link:hover,
  :root[data-theme="system"] .drawer-toggle:hover,
  :root[data-theme="system"] .drawer-link:focus,
  :root[data-theme="system"] .drawer-toggle:focus {
    background: rgba(0, 0, 0, 0.05);
    color: #111827;
  }
  
  :root[data-theme="system"] .drawer-sublink {
    color: #6b7280;
  }
  
  :root[data-theme="system"] .drawer-sublink:hover,
  :root[data-theme="system"] .drawer-sublink:focus {
    background: rgba(0, 0, 0, 0.05);
    color: #111827;
  }
  
  :root[data-theme="system"] .sub-heading {
    color: #6b7280;
  }
  
  :root[data-theme="system"] .drawer-sub {
    border-left-color: #e2e8f0;
  }
}

/* 淺色模式：卡片 */
:root[data-theme="light"] .card {
  background: #ffffff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
}

:root[data-theme="light"] .card-header {
  background: rgba(0, 0, 0, 0.02);
  border-bottom-color: rgba(0, 0, 0, 0.06);
}

@media (prefers-color-scheme: light) {
  :root[data-theme="system"] .card {
    background: #ffffff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  }
  
  :root[data-theme="system"] .card-header {
    background: rgba(0, 0, 0, 0.02);
    border-bottom-color: rgba(0, 0, 0, 0.06);
  }
}

/* 淺色模式：Footer */
:root[data-theme="light"] footer,
:root[data-theme="light"] .footer {
  background: #f1f5f9;
  border-top-color: #e2e8f0;
}

@media (prefers-color-scheme: light) {
  :root[data-theme="system"] footer,
  :root[data-theme="system"] .footer {
    background: #f1f5f9;
    border-top-color: #e2e8f0;
  }
}

/* 淺色模式：連結 */
:root[data-theme="light"] a {
  color: #4f46e5;
}

:root[data-theme="light"] a:hover {
  color: #4338ca;
}

@media (prefers-color-scheme: light) {
  :root[data-theme="system"] a {
    color: #4f46e5;
  }
  
  :root[data-theme="system"] a:hover {
    color: #4338ca;
  }
}

/* 淺色模式：選中文字 */
:root[data-theme="light"] ::selection {
  background: rgba(79, 70, 229, 0.2);
  color: #1e293b;
}

@media (prefers-color-scheme: light) {
  :root[data-theme="system"] ::selection {
    background: rgba(79, 70, 229, 0.2);
    color: #1e293b;
  }
}

/* Progress/Loading skeleton */
.skeleton {
  position: relative;
  overflow: hidden;
  background: #2f3136;
}
.skeleton::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    110deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.08) 40%,
    rgba(255, 255, 255, 0) 80%
  );
  animation: skeleton 1.4s ease-in-out infinite;
}
@keyframes skeleton {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

/* Notification container (to align with JS) */
#notification-container .notification {
  font-size: 0.9rem;
}

/* ========== Moved from base.html inline styles ========== */
:root {
  --primary-color: #5865f2;
  --bg-dark: #36393f;
  --bg-darker: #2f3136;
  --bg-lightest: #40444b;
  --text-light: #dcddde;
  --text-muted: #b9bbbe;
  --cursor-default: url("/static/img/mouse/64/mouse_default_64.png") 0 0,
    auto;
  --cursor-pointer: url("/static/img/mouse/64/mouse_point_1_64.png") 0 0,
    pointer;
}

/* Cursor defaults (moved from base.html) */
html,
body {
  cursor: var(--cursor-default);
}

/* Interactive elements show the pointer variant */
a,
button,
[role="button"],
.btn,
input[type="submit"],
input[type="button"],
label,
.cursor-pointer {
  cursor: var(--cursor-pointer);
}

/* Text fields keep the I-beam for selection accuracy */
input[type="text"],
input[type="search"],
input[type="password"],
textarea {
  cursor: text;
}

/* Touch / coarse pointers should keep the system cursor */
@media (pointer: coarse) {
  html,
  body {
    cursor: auto;
  }

  a,
  button,
  [role="button"],
  .btn,
  input[type="submit"],
  input[type="button"],
  label,
  .cursor-pointer {
    cursor: pointer;
  }
}

/* 移除 body.app-root，直接套用在 body 基礎樣式 */

/* 新版頂部導覽列透明狀態（由 base.js 加上 .at-top，類似 Netflix 效果） */
.site-nav.at-top {
  background: transparent !important;
  border-bottom-color: transparent !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

/* ============================================
   透明導航欄文字顏色動態調整
   JavaScript 會根據導航欄下方的背景亮度動態添加：
   - .nav-on-dark-bg: 背景較暗，使用白色文字
   - .nav-on-light-bg: 背景較亮，使用深色文字
   這比主題模式更精確，可適應任何動態內容
   ============================================ */

/* 動態偵測模式：背景較暗時使用白色文字 */
.site-nav.at-top.nav-on-dark-bg .nav-link,
.site-nav.at-top.nav-on-dark-bg .navbar-brand,
.site-nav.at-top.nav-on-dark-bg .brand-text {
  color: #ffffff !important;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.6);
}

.site-nav.at-top.nav-on-dark-bg .nav-hamburger span {
  background-color: #ffffff !important;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

.site-nav.at-top.nav-on-dark-bg .nav-link i,
.site-nav.at-top.nav-on-dark-bg .nav-user-avatar {
  filter: drop-shadow(0 1px 3px rgba(0, 0, 0, 0.4));
}

/* 動態偵測模式：背景較亮時使用深色文字 */
.site-nav.at-top.nav-on-light-bg .nav-link,
.site-nav.at-top.nav-on-light-bg .navbar-brand,
.site-nav.at-top.nav-on-light-bg .brand-text {
  color: #1f2937 !important;
  text-shadow: 0 1px 2px rgba(255, 255, 255, 0.6);
}

.site-nav.at-top.nav-on-light-bg .nav-hamburger span {
  background-color: #1f2937 !important;
  box-shadow: 0 1px 2px rgba(255, 255, 255, 0.3);
}

.site-nav.at-top.nav-on-light-bg .nav-link i,
.site-nav.at-top.nav-on-light-bg .nav-user-avatar {
  filter: drop-shadow(0 1px 2px rgba(255, 255, 255, 0.5));
}

/* 回退模式：當 JavaScript 尚未偵測時，根據主題提供預設值 */
/* 淺色模式預設使用深色文字 */
:root[data-theme="light"] .site-nav.at-top:not(.nav-on-dark-bg):not(.nav-on-light-bg) .nav-link,
:root[data-theme="light"] .site-nav.at-top:not(.nav-on-dark-bg):not(.nav-on-light-bg) .navbar-brand,
:root[data-theme="light"] .site-nav.at-top:not(.nav-on-dark-bg):not(.nav-on-light-bg) .brand-text {
  color: #1f2937 !important;
  text-shadow: 0 1px 2px rgba(255, 255, 255, 0.5);
}

:root[data-theme="light"] .site-nav.at-top:not(.nav-on-dark-bg):not(.nav-on-light-bg) .nav-hamburger span {
  background-color: #1f2937 !important;
}

/* 跟隨系統淺色模式回退 */
@media (prefers-color-scheme: light) {
  :root[data-theme="system"] .site-nav.at-top:not(.nav-on-dark-bg):not(.nav-on-light-bg) .nav-link,
  :root[data-theme="system"] .site-nav.at-top:not(.nav-on-dark-bg):not(.nav-on-light-bg) .navbar-brand,
  :root[data-theme="system"] .site-nav.at-top:not(.nav-on-dark-bg):not(.nav-on-light-bg) .brand-text {
    color: #1f2937 !important;
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.5);
  }
  
  :root[data-theme="system"] .site-nav.at-top:not(.nav-on-dark-bg):not(.nav-on-light-bg) .nav-hamburger span {
    background-color: #1f2937 !important;
  }
}

/* 深色模式預設使用白色文字 */
:root:not([data-theme="light"]):not([data-theme="system"]) .site-nav.at-top:not(.nav-on-dark-bg):not(.nav-on-light-bg) .nav-link,
:root:not([data-theme="light"]):not([data-theme="system"]) .site-nav.at-top:not(.nav-on-dark-bg):not(.nav-on-light-bg) .navbar-brand,
:root:not([data-theme="light"]):not([data-theme="system"]) .site-nav.at-top:not(.nav-on-dark-bg):not(.nav-on-light-bg) .brand-text {
  color: rgba(255, 255, 255, 0.95) !important;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

:root:not([data-theme="light"]):not([data-theme="system"]) .site-nav.at-top:not(.nav-on-dark-bg):not(.nav-on-light-bg) .nav-hamburger span {
  background-color: rgba(255, 255, 255, 0.95) !important;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

@media (prefers-color-scheme: dark) {
  :root[data-theme="system"] .site-nav.at-top:not(.nav-on-dark-bg):not(.nav-on-light-bg) .nav-link,
  :root[data-theme="system"] .site-nav.at-top:not(.nav-on-dark-bg):not(.nav-on-light-bg) .navbar-brand,
  :root[data-theme="system"] .site-nav.at-top:not(.nav-on-dark-bg):not(.nav-on-light-bg) .brand-text {
    color: rgba(255, 255, 255, 0.95) !important;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  }
  
  :root[data-theme="system"] .site-nav.at-top:not(.nav-on-dark-bg):not(.nav-on-light-bg) .nav-hamburger span {
    background-color: rgba(255, 255, 255, 0.95) !important;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  }
}

/* 特殊頁面：有深色 Hero 背景的頁面，強制標記為深色背景（優先級最高） */
/* 使用 .dark-hero-nav 類別標記這些頁面 */
.dark-hero-nav .site-nav.at-top .nav-link,
.dark-hero-nav .site-nav.at-top .navbar-brand,
.dark-hero-nav .site-nav.at-top .brand-text {
  color: #ffffff !important;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.6);
}

.dark-hero-nav .site-nav.at-top .nav-hamburger span {
  background-color: #ffffff !important;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

.dark-hero-nav .site-nav.at-top .nav-link i,
.dark-hero-nav .site-nav.at-top .nav-user-avatar {
  filter: drop-shadow(0 1px 3px rgba(0, 0, 0, 0.4));
}

/* PWA 模式下也要支援透明導航欄 */
.pwa-standalone .site-nav.at-top,
body.pwa-force-hamburger-only .site-nav.at-top {
  background: transparent !important;
  border-bottom-color: transparent !important;
}
.site-nav .nav-inner {
  height: var(--nav-height);
}
.site-nav .navbar-brand {
  font-weight: 600;
  color: var(--text-main, #111827);
  white-space: nowrap;
}
.site-nav .brand-text {
  font-size: 0.98rem;
  opacity: 0.9;
}
.site-nav .nav-primary .nav-list {
  gap: 0.25rem;
}
.site-nav .nav-item {
  position: relative;
}
/* .site-nav .nav-link 系列在 unified 區塊統一定義，這裡僅保留結構樣式（.nav-inner/.navbar-brand 等） */
.site-nav .nav-link .angle {
  font-size: 0.8em;
  opacity: 0.85;
}
.site-nav .nav-dropdown {
  min-width: 240px;
  background: var(--bg-darker, #ffffff);
  border-radius: 12px;
  padding: 0.65rem 0.4rem 0.5rem;
  box-shadow: 0 14px 45px rgba(0, 0, 0, 0.12);
  border: 1px solid var(--border-subtle, rgba(15, 23, 42, 0.08));
  margin-top: 0.35rem;
}
.site-nav .dropdown-item {
  font-size: 0.92rem;
  padding: 0.4rem 0.95rem;
  border-radius: 8px;
  color: var(--text-muted, #6b7280);
  display: flex;
  align-items: center;
}
.site-nav .dropdown-item:hover,
.site-nav .dropdown-item.active {
  background: rgba(88, 101, 242, 0.12);
  color: var(--text-main, #111827);
  text-decoration: none;
}
.site-nav .dropdown-section {
  padding: 0 0.95rem;
  text-transform: none;
  letter-spacing: 0.4px;
}
.site-nav .dropdown-sep {
  border-color: var(--border-subtle, rgba(15, 23, 42, 0.08));
  margin: 0.4rem 0.65rem;
}

.dropdown-menu {
  background-color: var(--bg-darker);
  border-color: var(--border-subtle, #202225);
}
.dropdown-item {
  color: var(--text-muted);
}
.dropdown-item:hover {
  background-color: var(--bg-lighter);
  color: var(--text-main, #fff);
}

.card {
  background-color: var(--bg-darker);
  border: none;
  border-radius: 14px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  margin-bottom: 20px;
}
.card-header {
  background-color: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-weight: 600;
}

.footer {
  margin-top: auto;
  background-color: var(--bg-darker);
  padding: 20px 0 calc(20px + var(--safe-bottom));
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}
.main-content {
  width: 100%;
  max-width: none;
  margin: 0 auto;
  padding-left: 0;
  padding-right: 0;
  flex: 1 0 auto;
}
/* Provide soft rounded wrapper feel */
.main-content > section,
.main-content > .card,
.main-content > form,
.main-content > div.card {
  border-radius: 14px;
}
@media (max-width: 576px) {
  .main-content > section,
  .main-content > .card {
    border-radius: 10px;
  }
}
/* Normalize common section/card wrappers to align with main-content */
.main-content .card,
.main-content section,
.main-content .status,
.main-content .logs,
.main-content .reports,
.main-content .admin-card {
  max-width: 100%;
}
.main-content section {
  margin-bottom: 2rem;
}
.main-content section:last-child {
  margin-bottom: 1rem;
}

/* Legal pages wrapper */
.legal-wrapper {
  max-width: 980px;
  margin: 0 auto 2.5rem;
}
.legal-wrapper .card {
  background: var(--bg-darker, #2f3136);
}
.legal-wrapper h1 {
  text-align: center;
}
.legal-wrapper h2 {
  margin-top: 2.2em;
  font-size: 1.15rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  opacity: 0.95;
}

/* Provide a generic responsive row utility */
.row-flex {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}
.row-flex > * {
  flex: 1 1 320px;
}

main.main-content > *:first-child {
  margin-top: 0.25rem;
}
main.main-content > *:last-child {
  margin-bottom: 0.5rem;
}

@media (max-width: 992px) {
  .main-content {
    padding-left: 0;
    padding-right: 0;
  }
}

@media (max-width: 576px) {
  .main-content {
    padding-left: 0;
    padding-right: 0;
  }
  main.main-content > *:first-child {
    margin-top: 0.4rem;
  }
  main.main-content > *:last-child {
    margin-bottom: 0.9rem;
  }
}

/* Typography */
h1,
h2,
h3,
h4 {
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.5px;
}
h1 {
  font-size: clamp(1.9rem, 2.4vw + 1rem, 2.6rem);
  margin: 0.2em 0 0.6em;
}
h2 {
  font-size: clamp(1.4rem, 1.5vw + 0.9rem, 2rem);
  margin: 1.4em 0 0.55em;
}
h3 {
  font-size: 1.25rem;
  margin: 1.2em 0 0.5em;
}
p {
  margin: 0 0 1em;
}
ul,
ol {
  padding-left: 1.3em;
  margin-top: 0;
  margin-bottom: 1em;
}
li + li {
  margin-top: 0.25em;
}

code,
pre,
kbd {
  font-family:
    ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.9em;
}
pre {
  background: #1f2022;
  padding: 1rem;
  border-radius: 8px;
  overflow: auto;
}
code {
  background: rgba(255, 255, 255, 0.08);
  padding: 0.15em 0.45em;
  border-radius: 4px;
}

blockquote {
  margin: 1.2em 0;
  padding: 0.75em 1em;
  border-left: 4px solid #5865f2;
  background: rgba(88, 101, 242, 0.07);
  border-radius: 4px;
}

table {
  width: 100%;
  border-collapse: collapse;
}
table th,
table td {
  padding: 0.6em 0.75em;
  border: 1px solid #34373c;
}
table th {
  background: #2f3136;
  font-weight: 600;
}
table tr:nth-child(even) td {
  background: #2a2c30;
}

/* Improved navbar spacing */
.navbar .nav-link {
  padding: 0.55rem 0.9rem;
}
.navbar-nav {
  align-items: center;
}

/* Form elements */
input[type="text"],
input[type="password"],
input[type="email"],
select {
  background: #2b2d31;
  border: 1px solid #3a3d42;
  color: #fff;
  padding: 0.55rem 0.75rem;
  border-radius: 6px;
  width: 100%;
  box-sizing: border-box;
}
input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: #5865f2;
  box-shadow: 0 0 0 2px rgba(88, 101, 242, 0.35);
}

/* Cards refine */
.card {
  transition:
    box-shadow 0.25s ease,
    transform 0.25s ease;
}
.card:hover {
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
  transform: translateY(-2px);
}

/* Layout helpers */
.grid {
  display: grid;
  gap: 1.25rem;
}
.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

/* --- Public notes card layout fixes (避免內容高度不一致與未閉合標籤破壞布局) --- */
.row-flex {
  align-items: stretch;
}
.row-flex > [class*="col-"] {
  display: flex;
}
.row-flex .card {
  display: flex;
  flex-direction: column;
}
.row-flex .card .card-body {
  display: flex;
  flex-direction: column;
}
.row-flex .card .note-content-preview {
  flex: 0 0 auto;
}
.row-flex .card a.btn {
  margin-top: auto;
}
/* 確保預覽不會撐破高度造成 footer 被推離 (以文字形式顯示，已在後端移除 HTML) */
.note-content-preview {
  word-wrap: break-word;
  overflow: hidden;
}

/* Small screen tweaks */
@media (max-width: 768px) {
  .main-content {
    padding-left: 0.9rem;
    padding-right: 0.9rem;
  }
  h1 {
    font-size: clamp(1.7rem, 5vw + 1rem, 2.2rem);
  }
  h2 {
    font-size: clamp(1.25rem, 3.5vw + 0.8rem, 1.7rem);
  }
}

.btn-primary {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}
.btn-primary:hover {
  background-color: #4752c4;
  border-color: #4752c4;
}
.btn-outline-primary {
  color: var(--primary-color);
  border-color: var(--primary-color);
}
.btn-outline-primary:hover {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

/* Consent banner */
.consent-banner {
  position: fixed;
  left: 50%;
  bottom: calc(18px + var(--safe-bottom));
  transform: translateX(-50%);
  z-index: 1100;
  background: var(--bg-darker, #1f2023);
  color: var(--text-main, #fff);
  border: 1px solid var(--border-subtle, #2b2d31);
  border-radius: 12px;
  padding: 12px 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  display: none;
  gap: 12px;
  align-items: center;
  width: min(96%, 960px);
  max-width: 960px;
}
.consent-banner.show {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}
.consent-banner .consent-text {
  flex: 1 1 200px;
  margin-bottom: 6px;
}
.consent-banner .consent-actions {
  display: flex;
  gap: 8px;
  flex: 0 0 auto;
}
@media (max-width: 576px) {
  .consent-banner {
    bottom: calc(12px + var(--safe-bottom));
    padding: 12px;
  }
}

.table {
  color: var(--text-light);
}
.table-dark {
  background-color: var(--bg-darker);
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  margin-right: 8px;
}

/* Custom scrollbar (already some global scrollbar above; keep unified) */
/* Duplicate selectors avoided to prevent override churn */

/* ================= Mobile Navbar Fixes (2025-08) =================
   修正：手機版導覽列下拉次選單仍套用桌面浮動樣式，導致置中漂浮 / 遮住內容。
   作法：在 <992px 時，針對 .navbar-nav 內的 .dropdown-menu (nav-submenu) 做重置，
                 改為佔滿可用寬度、靜態定位、透明背景並消除陰影與邊框。
                 同時調整內距與項目間距，確保與既有自訂 .nav-submenu 行為一致。 */
@media (max-width: 991.98px) {
  .navbar-nav .dropdown-menu.nav-submenu {
    /* 更精準鎖定 nav-submenu 避免影響其他可能的 dropdown */
    position: static !important; /* 移除 bootstrap 絕對定位 */
    inset: auto !important; /* 清除 top/left 等 */
    transform: none !important;
    width: 100%;
    min-width: 0;
    margin: 0.25rem 0 0.65rem 0; /* 與上/下項拉開一點 */
    padding: 0.25rem 0 0.55rem; /* 精簡內距 */
    background: transparent; /* 與父容器融合，由 nav-collapse 背景提供底色 */
    border: 0;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
  .navbar-nav .dropdown-menu.nav-submenu .dropdown-item {
    /* 手機項目寬度與主列對齊 */
    padding: 0.6rem 0.95rem;
    border-radius: 10px;
    font-size: 0.95rem;
    line-height: 1.25;
  }
  .navbar-nav .dropdown-menu.nav-submenu .dropdown-item + .dropdown-item {
    margin-top: 2px;
  }
  /* 標題（若有）縮小並與主體對齊 */
  .navbar-nav .dropdown-menu.nav-submenu .dropdown-header {
    padding: 0.4rem 0.95rem 0.25rem;
    font-size: 0.7rem;
    letter-spacing: 0.5px;
    opacity: 0.7;
  }
  /* Divider 縮短並降低可視重量 */
  .navbar-nav .dropdown-menu.nav-submenu .dropdown-divider {
    margin: 0.55rem 0.65rem;
    opacity: 0.25;
  }
}
/* ================================================================= */
/* Desktop nav interaction fix (2025-08): ensure dropdown sits above other content */
@media (min-width: 992px) {
  .nav-item.dropdown > .nav-submenu {
    z-index: 1025;
    position: absolute;
  }
  .nav-item.dropdown > .nav-link.dropdown-toggle {
    position: relative;
    z-index: 1225;
    pointer-events: auto;
  }
  .nav-item.dropdown.open > .nav-link.dropdown-toggle {
    pointer-events: auto;
  }
  .nav-item.dropdown > .nav-submenu {
    pointer-events: auto;
  }
}
/* === Migrated from base.html inline <style> (navigation redesign) === */
:root {
  --nav-height: 66px;
  --actual-nav-height: 66px;
}
@media (max-width: 576px) {
  :root {
    --nav-height: 60px;
  }
}
/* 包含 safe-top 以避免 PWA / iOS Safari 狀態列遮住內容 */
body.has-fixed-nav {
  padding-top: calc(
    var(--actual-nav-height, var(--nav-height)) + var(--safe-top)
  );
}
/* Safe-area variables (fallback 0) */
:root {
  --vvh: 1vh;
  --safe-top-dyn: 0px;
  --safe-right-dyn: 0px;
  --safe-bottom-dyn: 0px;
  --safe-left-dyn: 0px;
  --safe-top: calc(env(safe-area-inset-top, 0px) + var(--safe-top-dyn));
  --safe-right: calc(env(safe-area-inset-right, 0px) + var(--safe-right-dyn));
  --safe-bottom: calc(
    env(safe-area-inset-bottom, 0px) + var(--safe-bottom-dyn)
  );
  --safe-left: calc(env(safe-area-inset-left, 0px) + var(--safe-left-dyn));
}
body {
  padding-left: max(var(--safe-left), 0);
  padding-right: max(var(--safe-right), 0);
  padding-bottom: max(var(--safe-bottom), 0);
}
/* Brand / logo */
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 1.05rem;
  font-weight: 600;
}
.navbar-brand .site-logo {
  height: 38px;
  width: auto;
  border-radius: 10px;
  box-shadow: 0 0 0 1px var(--border-subtle, rgba(15, 23, 42, 0.08));
  object-fit: cover;
  background: var(--bg-body, #222);
}
@media (max-width: 576px) {
  .navbar-brand .site-logo {
    height: 32px;
  }
}
@media (min-width: 992px) {
  .navbar-brand {
    font-size: 1.15rem;
  }
}
/* Prevent image drag ghost interfering */
.navbar-brand img {
  -webkit-user-drag: none;
  user-select: none;
}
@media (min-width: 992px) {
  .navbar-brand {
    font-size: 1.15rem;
  }
}
.skip-link {
  position: absolute;
  left: 0;
  top: -40px;
  background: #5865f2;
  color: #fff;
  padding: 0.6rem 1rem;
  z-index: 2000;
  border-radius: 0 0 6px 0;
  text-decoration: none;
  transition: top 0.25s;
  font-weight: 500;
}
.skip-link:focus {
  top: 0;
}
/* Desktop submenu (custom, not Bootstrap) */
@media (min-width: 992px) {
  .nav-item.dropdown {
    position: relative;
  }
  .nav-item.dropdown > .nav-submenu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 230px;
    padding: 0.55rem 0.55rem 0.7rem;
    display: none !important;
    background: rgba(32, 34, 37, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 14px;
    box-shadow: 0 12px 32px -10px rgba(0, 0, 0, 0.65);
  }
  .nav-item.dropdown.open > .nav-submenu {
    display: block !important;
    animation: dropdownFade 0.18s ease;
  }
  .nav-submenu .dropdown-item {
    padding: 0.5rem 0.75rem;
    font-size: 0.85rem;
  }
  .nav-submenu .dropdown-item.active {
    background: #5865f2;
    color: #fff;
  }
  .nav-submenu .dropdown-header {
    font-size: 0.65rem;
    opacity: 0.6;
    padding: 0.35rem 0.4rem;
  }
  @keyframes dropdownFade {
    from {
      opacity: 0;
      transform: translateY(4px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}
/* PWA Standalone adjustments - Simplified for better compatibility */
@media (display-mode: standalone) {
  body.has-fixed-nav {
    padding-top: calc(
      var(--actual-nav-height, var(--nav-height)) + env(safe-area-inset-top, 0px)
    );
  }

  /* 覆蓋 Bootstrap .fixed-top，確保頂欄包含 safe-area 高度 */
  .site-nav.fixed-top {
    top: 0;
    padding-top: env(safe-area-inset-top, 0px);
    min-height: calc(var(--nav-height) + env(safe-area-inset-top, 0px));
  }
  
  /* PWA 模式下頂部透明效果 */
  .site-nav.fixed-top.at-top {
    background: transparent !important;
    border-bottom-color: transparent !important;
    box-shadow: none !important;
  }

  .site-nav {
    padding-left: calc(0.5rem + env(safe-area-inset-left, 0px));
    padding-right: calc(0.5rem + env(safe-area-inset-right, 0px));
  }

  .nav-drawer {
    padding-top: env(safe-area-inset-top, 0px);
  }

  .drawer-scroll {
    padding-bottom: calc(2rem + env(safe-area-inset-bottom, 0px));
  }

  .nav-backdrop {
    padding-top: env(safe-area-inset-top, 0px);
  }

  .site-nav .navbar-brand .brand-text {
    max-width: clamp(140px, 26vw, 320px);
  }

  .nav-hamburger {
    margin-top: max(0px, var(--safe-top) * 0.15);
  }

  .main-content {
    padding-bottom: calc(1.25rem + env(safe-area-inset-bottom, 0px));
  }
}

/* Enhanced Tablet PWA Support - Simplified */
@media (display-mode: standalone) and (min-width: 768px) and (max-width: 1024px) {
  /* Tablet-specific adjustments for better touch experience */
  .site-nav .navbar-brand .brand-text {
    max-width: 360px;
    font-size: 1.05rem;
  }

  /* Better tap targets for tablets */
  .nav-primary .nav-link {
    min-height: 44px;
    padding: 0.65rem 1rem;
    font-size: 0.95rem;
  }

  /* Ensure dropdown menus are properly positioned */
  .nav-dropdown,
  .dropdown-menu {
    top: calc(100% + 4px);
  }
}

/* Removed redundant pwa-ipad class styles - using media queries instead */

/* Landscape mode optimizations for tablets */
@media (display-mode: standalone) and (orientation: landscape) and (min-width: 768px) {
  .site-nav.fixed-top {
    min-height: calc(var(--nav-height) + env(safe-area-inset-top, 0px));
  }
  /* Reduce vertical padding in landscape to maximize content area */
  body.has-fixed-nav {
    padding-top: calc(var(--nav-height) + env(safe-area-inset-top, 0px) + 8px);
  }
  .main-content {
    padding-top: 1rem;
    padding-bottom: 1rem;
  }
}

/* Large tablet and small desktop PWA adjustments */
@media (display-mode: standalone) and (min-width: 992px) {
  .site-nav {
    padding-left: calc(1rem + env(safe-area-inset-left, 0px));
    padding-right: calc(1rem + env(safe-area-inset-right, 0px));
  }
  /* Full navigation layout on larger screens */
  .nav-primary {
    display: flex !important;
  }
  .nav-hamburger {
    display: none !important;
  }
}
/* 100vh iOS 後退列修正：使用動態視窗單位避免可視高度跳動 */
.vh-100d {
  min-height: 100dvh;
}
/* 底部空間保留用於有系統手勢列裝置 */
.pwa-standalone .needs-bottom-safe {
  padding-bottom: calc(1rem + var(--safe-bottom));
}
/* === Safe Bottom Utilities (iPhone 手勢列 / PWA 底部工具列預留) === */
.safe-bottom-pad {
  padding-bottom: calc(var(--safe-bottom));
}
.safe-bottom-pad-sm {
  padding-bottom: calc(0.5rem + var(--safe-bottom));
}
.safe-bottom-pad-lg {
  padding-bottom: calc(1.5rem + var(--safe-bottom));
}
.fixed-bottom-safe {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  padding-bottom: calc(0.5rem + var(--safe-bottom));
}
@media (min-width: 992px) {
  /* 桌面裝置通常沒有 safe-area-bottom；避免多餘空白，可稍微縮減 */
  .fixed-bottom-safe {
    padding-bottom: 0.75rem;
  }
}
/* 僅在 display-mode:standalone / 窄螢幕時加強 (防止 Safari UI 已顯示時過多空白) */
@media (display-mode: standalone) and (max-width: 991.98px) {
  .footer {
    padding-bottom: calc(28px + var(--safe-bottom));
  }
}
/* === End migrated styles === */
/* ================= New Unified Navigation (2025-08 Refactor) ================= */
.site-nav {
  --nav-bg: var(--bg-darker, #2b2d31);
  --nav-border: var(--border-subtle, rgba(255, 255, 255, 0.06));
  background: var(--nav-bg);
  border-bottom: 1px solid var(--nav-border);
  padding: 0.4rem 0;
  transition:
    background 0.35s ease,
    box-shadow 0.35s ease,
    transform 0.5s ease;
  z-index: 1020;
}
.no-backdrop .site-nav {
  background: var(--bg-darker);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
.site-nav .navbar-brand {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}
.site-nav .navbar-brand .brand-text {
  white-space: nowrap;
  transition:
    opacity 0.4s ease,
    transform 0.45s ease;
}
.site-nav.brand-collapsed .brand-text {
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
}
.nav-inner {
  min-height: var(--nav-height);
}
/* Layout refinement (2025-08 mobile/desktop unify) */
.nav-inner {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.35rem;
}
/* Desktop full-width nav: override Bootstrap container constraints inside .site-nav */
.site-nav .nav-inner.container {
  max-width: none;
  width: 100%;
}
@media (min-width: 992px) {
  .site-nav .nav-inner {
    padding-left: clamp(16px, 2.4vw, 28px);
    padding-right: clamp(16px, 2.4vw, 28px);
  }
}
/* Desktop layout sizing fix: prevent wrapping and reserve space correctly */
.site-nav .navbar-brand {
  flex: 0 0 auto;
}
.site-nav .nav-primary {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  align-items: center;
}
.site-nav .nav-user {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
}
.site-nav .nav-primary .nav-list {
  flex-wrap: nowrap;
  align-items: center;
}
.nav-primary .nav-list {
  gap: 0.15rem;
}
.navbar-brand .brand-text {
  display: inline-block;
  max-width: clamp(120px, 22vw, 260px);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.nav-link {
  position: relative;
  color: var(--text-muted, #b5bac1);
  font-weight: 500;
  padding: 0.55rem 0.9rem;
  border-radius: 10px;
  line-height: 1.1;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition:
    background 0.25s,
    color 0.25s;
}
.nav-link:hover,
.nav-link:focus {
  background: var(--bg-lighter, rgba(255, 255, 255, 0.08));
  color: var(--text-main, #f2f3f5);
  text-decoration: none;
}
/* 單一頁面（首頁 / 語音房間 / 設定等）目前所在頁：淡底＋主題文字色，高亮但不藍底 */
.nav-link.active-page {
  background: var(--bg-lighter, rgba(255, 255, 255, 0.08));
  color: var(--text-main, #f2f3f5);
  box-shadow: none;
}
/* 有子項目前在此群組時（機器人服務 / 管理功能 / 使用者帳號）：更輕微的底色提示 */
.nav-link.is-current-group {
  background: var(--bg-lighter, rgba(0, 0, 0, 0.03));
  color: var(--text-main, #111827);
}
.nav-toggle-btn {
  background: transparent !important;
  border: none;
  color: inherit;
}
.nav-has-children {
  position: relative;
}
.nav-has-children > .nav-link .angle {
  font-size: 0.85em;
  transition: transform 0.35s ease;
}
.nav-has-children.open > .nav-link .angle {
  transform: rotate(180deg);
}
.nav-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 280px;
  background: var(--bg-darker, #2f3136);
  border: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.07));
  border-radius: 14px;
  padding: 0.85rem 0.9rem 0.9rem;
  box-shadow: 0 18px 42px -12px rgba(0, 0, 0, 0.55);
  display: none;
  animation: navDropFade 0.35s cubic-bezier(0.4, 0.2, 0.2, 1);
  z-index: 1030;
  max-width: min(92vw, 420px);
  overflow-wrap: anywhere;
}
.nav-has-children:last-child > .nav-dropdown:not(.nav-dropdown-end) {
  left: auto;
  right: 0;
}
@media (min-width: 992px) {
  /* 防止超出視窗：若 dropdown 超出右側則向左移動  */
  .nav-has-children > .nav-dropdown {
    transform-origin: top left;
  }
  .nav-has-children > .nav-dropdown[data-align-fix="right"] {
    left: auto;
    right: 0;
  }
}
.nav-dropdown.nav-dropdown-end {
  left: auto;
  right: 0;
}
.nav-has-children.open > .nav-dropdown {
  display: block;
}
@keyframes navDropFade {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}
.nav-dropdown .dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55rem 0.65rem;
  border-radius: 8px;
  font-size: 0.92rem;
  color: var(--text-main, #f2f3f5);
  text-decoration: none;
  transition:
    background 0.25s,
    color 0.25s;
}
.nav-dropdown .dropdown-item:hover,
.nav-dropdown .dropdown-item:focus {
  background: var(--bg-lighter, rgba(255, 255, 255, 0.08));
  color: var(--text-main, #f2f3f5);
}
.nav-dropdown .dropdown-item.active {
  background: rgba(88, 101, 242, 0.12);
  color: var(--text-main, #f2f3f5);
}
.nav-dropdown .dropdown-sep {
  margin: 0.55rem 0;
  border-top: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.08));
}
.nav-dropdown .dropdown-section {
  font-size: 0.7rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  opacity: 0.75;
  color: var(--text-muted, #b5bac1);
}
.nav-dropdown .dropdown-section + .dropdown-section {
  margin-top: 0.35rem;
}
.nav-dropdown .dropdown-section:not(:first-child) {
  padding-top: 0.25rem;
}
/* Utility: visually hidden (for a11y; may be used by injected nav items) */
.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}
/* Overflow (更多) 收納選單指示 */
.nav-overflow > .nav-link {
  font-weight: 600;
}
.nav-overflow:not(.d-none) {
  display: flex !important;
}

/* 快速新增按鈕 */
.quick-add-btn {
  width: 38px;
  height: 38px;
  min-width: 38px;
  padding: 0 !important;
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  border-radius: 50% !important;
  background: linear-gradient(135deg, #5865f2, #4752c4) !important;
  color: #fff !important;
  font-size: 1.1rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
  box-shadow: 0 4px 12px -3px rgba(88, 101, 242, 0.4);
}
.quick-add-btn:hover,
.quick-add-btn:focus {
  transform: scale(1.08);
  box-shadow: 0 6px 18px -4px rgba(88, 101, 242, 0.55);
  background: linear-gradient(135deg, #6973f7, #5865f2) !important;
}
.quick-add-btn i {
  margin: 0 !important;
}
.nav-has-children[data-nav-group="quick-add"].open .quick-add-btn {
  transform: rotate(45deg);
  background: linear-gradient(135deg, #ed4245, #c73e41) !important;
}
.nav-has-children[data-nav-group="quick-add"] .nav-dropdown {
  min-width: 200px;
}

/* 手機版快速新增按鈕樣式 */
.quick-add-toggle {
  background: linear-gradient(135deg, rgba(88, 101, 242, 0.15), rgba(88, 101, 242, 0.08)) !important;
  border-left: 3px solid #5865f2 !important;
}
.quick-add-toggle:hover,
.quick-add-toggle:focus {
  background: linear-gradient(135deg, rgba(88, 101, 242, 0.25), rgba(88, 101, 242, 0.15)) !important;
}
.nav-overflow .angle {
  transition: transform 0.35s ease;
}
.nav-overflow.open .angle {
  transform: rotate(180deg);
}
.nav-overflow-badge {
  position: absolute;
  top: 4px;
  right: 4px;
  background: #ff784e;
  color: #fff;
  font-size: 10px;
  padding: 2px 5px;
  border-radius: 10px;
  line-height: 1;
  font-weight: 600;
  box-shadow: 0 2px 6px -2px rgba(0, 0, 0, 0.5);
}
.nav-hamburger {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 4px 9px;
  cursor: var(--cursor-pointer, pointer);
  transition:
    background 0.3s,
    border-color 0.3s,
    box-shadow 0.3s;
  position: relative;
  z-index: 1030;
}
.nav-hamburger span {
  display: block;
  width: 100%;
  height: 3px;
  background: #fff;
  border-radius: 2px;
  transition:
    transform 0.45s cubic-bezier(0.65, 0.05, 0.36, 1),
    opacity 0.3s;
}
.nav-hamburger:focus-visible {
  outline: 2px solid #5865f2;
  outline-offset: 3px;
}
.nav-hamburger.open {
  background: linear-gradient(135deg, #5865f2, #4752c4);
  box-shadow: 0 6px 24px -6px rgba(0, 0, 0, 0.55);
}
.nav-hamburger.open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
}
.nav-hamburger.open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}
.nav-drawer {
  position: fixed;
  top: 0;
  left: 0;
  height: calc(var(--vvh, 1vh) * 100);
  width: 300px;
  max-width: 82%;
  background: var(--bg-darker, rgba(32, 34, 38, 0.9));
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-right: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.07));
  box-shadow: 0 10px 50px -12px rgba(0, 0, 0, 0.65);
  transform: translateX(-102%);
  transition: transform 0.55s cubic-bezier(0.74, -0.01, 0.24, 1);
  z-index: 1035;
  display: flex;
  flex-direction: column;
  /* PWA safe-area 支援 */
  padding-top: env(safe-area-inset-top, 0px);
  padding-left: env(safe-area-inset-left, 0px);
}
.no-backdrop .nav-drawer {
  background: var(--bg-darker, #26282c);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
.nav-drawer.open {
  transform: translateX(0);
}
.drawer-scroll {
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  /* 使用 env() 確保在 PWA 模式下正確處理 home indicator */
  padding: 1.05rem 1rem calc(2.5rem + env(safe-area-inset-bottom, 0px));
}
.install-banner-visible .drawer-scroll {
  padding-bottom: calc(3.4rem + var(--safe-bottom));
}
.drawer-brand .site-logo {
  border-radius: 12px;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.06);
}
.drawer-link,
.drawer-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  background: transparent;
  border: none;
  color: var(--text-main, #e5e7eb);
  padding: 0.7rem 0.65rem;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 500;
  text-align: left;
  cursor: var(--cursor-pointer, pointer);
  text-decoration: none;
  transition:
    background 0.25s,
    color 0.25s;
}
.drawer-link:hover,
.drawer-toggle:hover,
.drawer-link:focus,
.drawer-toggle:focus {
  background: var(--bg-lighter, rgba(255, 255, 255, 0.08));
  color: var(--text-main, #f2f3f5);
  text-decoration: none;
}
.drawer-link.active {
  background: linear-gradient(135deg, var(--primary-color, #5865f2), #4752c4);
  color: #fff;
  box-shadow: 0 4px 16px -6px rgba(0, 0, 0, 0.5);
}
.drawer-toggle .angle {
  transition: transform 0.4s ease;
  margin-left: auto;
}
.drawer-toggle[aria-expanded="true"] .angle {
  transform: rotate(180deg);
}
.drawer-group + .drawer-group {
  margin-top: 0.35rem;
}
.drawer-sub {
  padding: 0.4rem 0 0.6rem 0.35rem;
  animation: drawerSub 0.4s ease;
}
@keyframes drawerSub {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.drawer-sublink {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.6rem;
  margin: 0.15rem 0;
  border-radius: 8px;
  color: var(--text-muted, #b5bac1);
  font-size: 0.88rem;
  text-decoration: none;
  transition:
    background 0.25s,
    color 0.25s;
}
.drawer-sublink:hover,
.drawer-sublink:focus {
  background: var(--bg-lighter, rgba(255, 255, 255, 0.08));
  color: var(--text-main, #f2f3f5);
}
.drawer-sublink.active {
  background: var(--primary-color, #5865f2);
  color: #fff;
}
.sub-heading {
  font-size: 0.66rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  opacity: 0.7;
  margin: 0.75rem 0 0.35rem;
  padding-left: 0.4rem;
  color: var(--text-muted, #b5bac1);
}
.user-mini .user-avatar {
  border-radius: 50%;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.08);
}
.nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.45s ease;
  z-index: 1010;
}
.nav-backdrop {
  padding-top: var(--safe-top);
}
.nav-backdrop.show {
  opacity: 1;
  visibility: visible;
}
body.nav-drawer-open {
  overflow: hidden;
}
@media (max-width: 991.98px) {
  .nav-primary,
  .nav-user {
    display: none !important;
  }
}
@media (min-width: 992px) {
  .nav-hamburger,
  .nav-drawer,
  .nav-backdrop {
    display: none !important;
  }
}
.nav-drawer :focus-visible {
  outline: 2px solid #5865f2;
  outline-offset: 2px;
}
/* ==================================================================== */

/* ======== PWA iPhone / Mobile override: 僅保留漢堡按鈕 (2025-08) ======== */
@media (max-width: 991.98px) {
  .pwa-standalone .site-nav.keep-hamburger-only,
  body.pwa-force-hamburger-only .site-nav {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    /* PWA 模式下導航欄要考慮 safe-area，但不強制背景色以支援 .at-top 透明效果 */
    padding-top: calc(env(safe-area-inset-top, 0px) + 0.4rem);
  }
  /* PWA 模式下滑動後才顯示背景 */
  .pwa-standalone .site-nav:not(.at-top),
  body.pwa-force-hamburger-only .site-nav:not(.at-top) {
    background: var(--bg-darker, #23272a);
  }
  .pwa-standalone .site-nav.keep-hamburger-only .navbar-brand,
  body.pwa-force-hamburger-only .site-nav .navbar-brand,
  .pwa-standalone .site-nav.keep-hamburger-only .nav-primary,
  body.pwa-force-hamburger-only .site-nav .nav-primary,
  .pwa-standalone .site-nav.keep-hamburger-only .nav-user,
  body.pwa-force-hamburger-only .site-nav .nav-user {
    display: none !important;
  }
  .pwa-standalone .site-nav.keep-hamburger-only .nav-hamburger,
  body.pwa-force-hamburger-only .site-nav .nav-hamburger {
    position: fixed;
    /* 使用 safe-area-inset-top 確保不會被劉海/加泡層遮擋 */
    top: calc(env(safe-area-inset-top, 0px) + 12px);
    right: max(env(safe-area-inset-right, 0px) + 14px, 14px);
    box-shadow: 0 4px 18px -6px rgba(0, 0, 0, 0.55);
    background: #5865f2;
    border-color: rgba(255, 255, 255, 0.25);
    z-index: 1040;
  }
  .pwa-standalone .site-nav.keep-hamburger-only + .nav-backdrop {
    top: 0;
  }
  .pwa-standalone body.has-fixed-nav {
    padding-top: calc(
      var(--actual-nav-height, var(--nav-height)) + var(--safe-top)
    );
  }
}

/* Mobile scroll collapse: hide brand to free vertical space, keep only hamburger */
@media (max-width: 991.98px) {
  .site-nav {
    will-change: transform, background, padding;
  }
  .site-nav .navbar-brand {
    transition: all 0.5s cubic-bezier(0.65, 0.05, 0.36, 1);
  }
  .site-nav.nav-compact {
    padding: 0.15rem 0;
  }
  .site-nav.nav-compact .navbar-brand {
    opacity: 0;
    transform: translateY(-14px) scale(0.92);
    max-width: 0;
    margin: 0;
    padding: 0;
    overflow: hidden;
    pointer-events: none;
  }
  /* When drawer is open, ensure brand stays visible (override) */
  body.nav-drawer-open .site-nav.nav-compact .navbar-brand {
    opacity: 1;
    transform: none;
    max-width: 100%;
    margin-right: var(--bs-gutter-x, 0.75rem);
    pointer-events: auto;
  }

  /* 全隱藏模式：整個頂欄上滑離開，僅保留漢堡固定在右上角 */
  .site-nav.nav-hidden-full {
    transform: translateY(
      calc(
        -1 *
          (var(--actual-nav-height, var(--nav-height)) + var(--safe-top) + 4px)
      )
    );
  }
  .site-nav.nav-hidden-full .navbar-brand,
  .site-nav.nav-hidden-full .nav-primary,
  .site-nav.nav-hidden-full .nav-user {
    opacity: 0;
    pointer-events: none;
  }
  .site-nav.nav-hidden-full .nav-hamburger {
    position: fixed;
    /* 使用 safe-area-inset-top 確保不會被劉海遮擋 */
    top: calc(env(safe-area-inset-top, 0px) + 10px);
    right: max(env(safe-area-inset-right, 0px) + 14px, 14px);
    transform: scale(0.9);
    box-shadow: 0 4px 18px -6px rgba(0, 0, 0, 0.55);
    background: linear-gradient(135deg, var(--primary-color, #5865f2), #4752c4);
    border-color: rgba(255, 255, 255, 0.2);
    z-index: 1040;
  }
  .site-nav.nav-hidden-full .nav-hamburger.open {
    top: calc(env(safe-area-inset-top, 0px) + 12px);
    transform: scale(1);
  }
  body.nav-drawer-open .site-nav.nav-hidden-full {
    transform: none;
  }
  body.nav-drawer-open .site-nav.nav-hidden-full .navbar-brand,
  body.nav-drawer-open .site-nav.nav-hidden-full .nav-primary,
  body.nav-drawer-open .site-nav.nav-hidden-full .nav-user {
    opacity: 1;
    pointer-events: auto;
  }
}
@media (prefers-reduced-motion: reduce) {
  .site-nav .navbar-brand,
  .site-nav.nav-compact .navbar-brand {
    transition: none !important;
  }
}

/* ================= Desktop Full-Width Overrides (2025-08) =================
   目的：在桌面寬度時移除各頁常見容器的 max-width 限制，讓頁面可佔滿可視寬度。
   範圍：不影響行動裝置斷點（< 992px）。若單頁需要維持窄版，可於該頁額外覆寫。 */
@media (min-width: 992px) {
  /* Bootstrap container 系列：桌面改為全寬 */
  .container,
  .container-lg,
  .container-xl,
  .container-xxl {
    max-width: none !important;
    width: 100% !important;
  }
  /* 主要內容殼 */
  .main-content {
    max-width: none !important;
    width: 100% !important;
  }
  /* 舊導覽容器（避免 1200px 夾限） */
  nav.legacy-nav,
  .main-nav {
    max-width: none !important;
    width: 100% !important;
    margin-left: 0;
    margin-right: 0;
  }
  /* 常見卡片/版塊容器 */
  .status,
  .logs,
  .reports,
  .admin-card {
    max-width: none !important;
    width: 100% !important;
  }
  /* 法務/說明頁殼與窄版容器 */
  .legal-wrapper,
  .container-narrow {
    max-width: none !important;
    width: 100% !important;
  }
  /* 各設定 / 功能頁常見外層容器 */
  .settings-container,
  .notify-settings-container,
  .discord-bind-container,
  .security-settings-container,
  .advanced-container,
  .file-viewer-wrapper {
    max-width: none !important;
    width: 100% !important;
  }
}
/* ======================================================================== */