/* =========================================================
   调音师助理 - Windows 11 Fluent 纯正暗黑 & 浅色高质感双模系统
   暗黑模式: 原生中性灰黑 (R=G=B 绝无偏蓝) + 柔金点缀
   浅色模式: 原生纯净浅灰白 (无任何黑块、黑斑或白字遮挡)
   ========================================================= */
:root {
  /* Windows 11 Fluent Dark (中性曜黑，R=G=B 无偏蓝) */
  --bg-base: #141414;
  --bg-titlebar: rgba(25, 25, 25, 0.90);
  --bg-sidebar: rgba(28, 28, 28, 0.90);
  --bg-content: transparent;
  
  --bg-card: rgba(40, 40, 40, 0.75);
  --bg-card-header: #1e1e1e;
  --bg-card-hover: rgba(52, 52, 52, 0.92);
  --bg-card-solid: #202020;
  
  --bg-hover: rgba(255, 255, 255, 0.06);
  --bg-active: rgba(228, 186, 81, 0.14);
  
  --stat-icon-bg: #2a2a2a;
  --stat-icon-border: rgba(255, 255, 255, 0.08);
  --stat-icon-color: #e4ba51;
  
  --color-text-primary: #ffffff;
  --color-text-secondary: #d2d2d2;
  --color-text-muted: #9e9e9e;
  
  --color-accent: #e4ba51;
  --color-accent-hover: #eed17c;
  --color-accent-light: #f5da8b;
  --color-accent-dark: #c49a34;
  --color-accent-glow: rgba(228, 186, 81, 0.20);
  --color-accent-gradient: linear-gradient(135deg, #d4a73b 0%, #e4ba51 50%, #eed17c 100%);
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-subtle: rgba(255, 255, 255, 0.04);
  --border-highlight: rgba(255, 255, 255, 0.14);
  --border-gold-accent: rgba(228, 186, 81, 0.28);
  
  --glass-blur: blur(20px) saturate(125%);
  --glass-blur-sm: blur(12px);
  --glass-blur-lg: blur(28px);
  
  --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.4), inset 0 1px 0 0 rgba(255, 255, 255, 0.08);
  --card-shadow-hover: 0 10px 32px rgba(0, 0, 0, 0.55), inset 0 1px 0 0 rgba(255, 255, 255, 0.14);
  
  --btn-secondary-bg: #2c2c2c;
  --btn-secondary-hover: #383838;
  --btn-secondary-border: rgba(255, 255, 255, 0.10);
  --btn-secondary-border-bottom: rgba(255, 255, 255, 0.16);
  --btn-secondary-color: #ffffff;
  
  --input-bg: #242424;
  --input-border: rgba(255, 255, 255, 0.10);
  --input-focus-border: #e4ba51;
  
  --filter-tag-bg: #262626;
  --filter-tag-hover: #323232;
  --filter-tag-color: #d2d2d2;
  
  --success: #10b981;
  --warning: #e4ba51;
  --danger: #ff4d4f;
  --info: #e4ba51;
  
  --radius-xs: 6px;
  --radius-sm: 8px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  
  --sidebar-width: 236px;
  --header-height: 50px;
  --font-family: "Segoe UI Variable Display", "Segoe UI Variable Text", "Segoe UI", -apple-system, BlinkMacSystemFont, "HarmonyOS Sans SC", sans-serif;
}

[data-theme="light"] {
  /* Windows 11 Fluent Light (原生纯净浅色，零黑块，温润曜金体系) */
  --bg-base: #f3f3f3;
  --bg-titlebar: rgba(245, 245, 245, 0.88);
  --bg-sidebar: rgba(248, 248, 248, 0.88);
  --bg-content: transparent;
  
  --bg-card: rgba(255, 255, 255, 0.88);
  --bg-card-header: #f4f4f6;
  --bg-card-hover: rgba(255, 255, 255, 0.98);
  --bg-card-solid: #ffffff;
  
  --bg-hover: rgba(0, 0, 0, 0.04);
  --bg-active: rgba(228, 186, 81, 0.14);
  
  /* 浅色统计图标：柔和香槟奶油底与明亮金边，温暖高档 */
  --stat-icon-bg: #fef9e7;
  --stat-icon-border: #fde68a;
  --stat-icon-color: #a16207;
  
  --color-text-primary: #18181b;
  --color-text-secondary: #52525b;
  --color-text-muted: #71717a;
  
  /* 纯正香槟金黄色体系 (杜绝一切暗沉脏橘色) */
  --color-accent: #e4ba51;
  --color-accent-hover: #eed17c;
  --color-accent-light: #fef08a;
  --color-accent-dark: #ca8a04;
  --color-accent-glow: rgba(228, 186, 81, 0.28);
  --color-accent-gradient: linear-gradient(135deg, #fcd34d 0%, #e4ba51 50%, #d4a73b 100%);
  
  --border-color: rgba(0, 0, 0, 0.08);
  --border-subtle: rgba(0, 0, 0, 0.04);
  --border-highlight: rgba(228, 186, 81, 0.35);
  --border-gold-accent: rgba(228, 186, 81, 0.45);
  
  --card-shadow: 0 4px 16px rgba(0, 0, 0, 0.05), inset 0 1px 0 rgba(255, 255, 255, 0.95);
  --card-shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.08), inset 0 1px 0 rgba(255, 255, 255, 1);
  
  --btn-secondary-bg: #f4f4f5;
  --btn-secondary-hover: #e4e4e7;
  --btn-secondary-border: rgba(0, 0, 0, 0.10);
  --btn-secondary-border-bottom: rgba(0, 0, 0, 0.16);
  --btn-secondary-color: #18181b;
  
  --input-bg: #ffffff;
  --input-border: rgba(0, 0, 0, 0.12);
  --input-focus-border: #e4ba51;
  
  --filter-tag-bg: #f4f4f5;
  --filter-tag-hover: #e4e4e7;
  --filter-tag-color: #52525b;
}

/* 极细微磨砂滚动条 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.18);
  border: 2px solid transparent;
  background-clip: padding-box;
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(228, 186, 81, 0.50);
  border-width: 1px;
}
* {
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.18) transparent;
}

[data-theme="light"]::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.18);
}
[data-theme="light"]::-webkit-scrollbar-thumb:hover {
  background: rgba(228, 186, 81, 0.50);
}
[data-theme="light"] * {
  scrollbar-color: rgba(0, 0, 0, 0.18) transparent;
}

/* Base Resets */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-base);
  background-image: 
    radial-gradient(at 15% 15%, #1e1e1e 0px, transparent 65%),
    radial-gradient(at 85% 85%, #181818 0px, transparent 65%);
  background-attachment: fixed;
  color: var(--color-text-primary);
  min-height: 100vh;
  display: flex;
  position: relative;
  overflow-x: clip;
  overflow-y: visible;
  font-size: 13px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

[data-theme="light"] body {
  background-image: 
    radial-gradient(at 15% 15%, #eaeaea 0px, transparent 65%),
    radial-gradient(at 85% 85%, #f0f0f0 0px, transparent 65%);
}

/* 侧边栏 (Sidebar) */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-sidebar);
  backdrop-filter: var(--glass-blur-lg);
  -webkit-backdrop-filter: var(--glass-blur-lg);
  border-right: 1px solid var(--border-color);
  box-shadow: 2px 0 16px rgba(0, 0, 0, 0.35);
  height: 100vh;
  position: fixed;
  left: 0;
  top: 0;
  display: flex;
  flex-direction: column;
  z-index: 100;
}

[data-theme="light"] .sidebar {
  box-shadow: 2px 0 12px rgba(0, 0, 0, 0.04);
}

.sidebar-profile {
  padding: 16px 16px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar-avatar {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.10);
  flex-shrink: 0;
  padding: 2px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.sidebar-avatar:hover {
  transform: scale(1.04);
  border-color: var(--color-accent);
}

.sidebar-avatar img {
  width: 100%;
  height: 100%;
  border-radius: 6px;
  object-fit: contain;
}

.sidebar-user-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.sidebar-username {
  font-size: 13.5px;
  font-weight: 650;
  color: var(--color-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: 0.2px;
}

.sidebar-status-tag {
  font-size: 11px;
  color: var(--color-accent);
  display: flex;
  align-items: center;
  gap: 5px;
  margin-top: 2px;
  font-weight: 600;
}

.sidebar-status-tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 6px var(--color-accent);
  display: inline-block;
}

.sidebar-nav {
  flex: 1;
  padding: 10px 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-y: auto;
}

.nav-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 12px;
  border-radius: var(--radius-xs);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  border: 1px solid transparent;
  user-select: none;
}

.nav-item:hover {
  color: var(--color-text-primary);
  background: var(--bg-hover);
}

.nav-item.active {
  color: var(--color-text-primary);
  background: var(--bg-active);
  border: 1px solid var(--border-gold-accent);
  font-weight: 600;
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  bottom: 7px;
  width: 3px;
  background: var(--color-accent);
  border-radius: 0 3px 3px 0;
  box-shadow: 0 0 6px var(--color-accent);
}

.nav-item svg {
  width: 16px;
  height: 16px;
  stroke-width: 2;
  flex-shrink: 0;
  transition: stroke 0.15s ease;
}

.nav-item.active svg {
  stroke: var(--color-accent);
}

.sidebar-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-hover);
}

/* Main Content Area & Header */
.main-wrapper {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: transparent;
  position: relative;
  z-index: 1;
}

.header {
  height: var(--header-height);
  background: var(--bg-titlebar);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
  padding: 0 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 90;
}

[data-theme="light"] .header {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

.header-title-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-title {
  font-size: 14.5px;
  font-weight: 650;
  color: var(--color-text-primary);
  letter-spacing: 0.2px;
}

.header-subtitle {
  font-size: 12px;
  color: var(--color-text-muted);
  padding-left: 12px;
  border-left: 1px solid var(--border-highlight);
  font-weight: 400;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.content-container {
  padding: 22px 26px;
  flex: 1;
  max-width: 1400px;
  width: 100%;
}

.tab-pane {
  display: none;
  animation: tabFadeIn 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

.tab-pane.active {
  display: block;
}

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

/* Dashboard API Cards */
.dashboard-api-card {
  margin-bottom: 22px;
}

.dashboard-api-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  margin-bottom: 10px;
}

.dashboard-api-card-head h3 {
  font-size: 14px;
  font-weight: 650;
  color: var(--color-text-primary);
}

.dashboard-api-card-head code {
  color: var(--color-accent);
  font-weight: 650;
  background: var(--bg-hover);
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid var(--border-gold-accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

[data-theme="light"] .dashboard-api-card-head code {
  background: #fefce8;
  border-color: #fde047;
  color: #854d0e;
}

.dashboard-api-card-help {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
  line-height: 1.5;
}

.dashboard-api-group {
  margin-bottom: 20px;
}

.dashboard-api-group:last-child {
  margin-bottom: 0;
}

.dashboard-api-group-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin: 0 2px 10px;
}

.dashboard-api-group-kicker {
  display: block;
  margin-bottom: 2px;
  color: var(--color-accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.dashboard-api-group h4 {
  color: var(--color-text-primary);
  font-size: 13px;
  font-weight: 650;
}

.dashboard-api-group-head p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 12px;
  text-align: right;
}

.dashboard-api-table-container {
  margin-bottom: 0;
}

.dashboard-api-divider {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 38px;
  margin: 14px 0;
  border-top: 1px dashed var(--border-highlight);
}

.dashboard-api-divider span {
  position: absolute;
  top: -10px;
  padding: 0 14px;
  background: var(--bg-card-solid);
  color: var(--color-text-muted);
  font-size: 11px;
  letter-spacing: 0.4px;
  border-radius: 10px;
  border: 1px solid var(--border-subtle);
}

/* Preferences UI */
.pref-api-banner {
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  padding: 15px 18px;
  border-radius: var(--radius-md);
  background: var(--bg-active);
  backdrop-filter: var(--glass-blur-sm);
  -webkit-backdrop-filter: var(--glass-blur-sm);
  border: 1px solid var(--border-gold-accent);
  border-left: 4px solid var(--color-accent);
  box-shadow: var(--card-shadow);
}

[data-theme="light"] .pref-api-banner {
  background: #fefce8;
  border: 1px solid #fde047;
  border-left: 4px solid #e4ba51;
}

.pref-api-banner-title {
  font-size: 13.5px;
  font-weight: 650;
  color: var(--color-text-primary);
  margin-bottom: 4px;
}

.pref-api-banner-desc {
  font-size: 12px;
  color: var(--color-text-secondary);
}

.api-code-pill {
  display: inline-flex;
  align-items: center;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 4px;
  background: var(--bg-hover);
  color: var(--color-accent);
  border: 1px solid var(--border-gold-accent);
  word-break: break-all;
}

[data-theme="light"] .api-code-pill {
  background: #ffffff;
  color: #854d0e;
  border: 1px solid #fcd34d;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.api-table-code {
  display: inline-block;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  font-weight: 500;
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--bg-active);
  color: var(--color-accent);
  border: 1px solid var(--border-gold-accent);
  word-break: break-all;
  max-width: 100%;
}

[data-theme="light"] .api-table-code {
  background: #fefce8;
  color: #854d0e;
  border: 1px solid #fde047;
}

.pref-path-badge {
  display: inline-flex;
  align-items: center;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12.5px;
  padding: 6px 12px;
  border-radius: 6px;
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  color: var(--color-text-primary);
  max-width: 380px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pref-path-badge.empty {
  color: var(--color-text-muted);
}

.preference-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 18px;
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.preference-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-subtle);
  gap: 16px;
  transition: background 0.15s ease;
}

.preference-row:hover {
  background: var(--bg-hover);
}

.preference-row:last-child {
  border-bottom: none;
}

.preference-row-label {
  font-size: 13px;
  font-weight: 550;
  color: var(--color-text-primary);
  line-height: 1.4;
}

.preference-row-desc {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 3px;
  line-height: 1.45;
}

.preference-section-title {
  font-size: 13px;
  font-weight: 650;
  color: var(--color-accent);
  margin: 22px 0 10px 2px;
  letter-spacing: 0.2px;
}

/* 分段选择器 (Pill Group) */
.pill-group {
  display: inline-flex;
  background: var(--input-bg);
  padding: 3px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
}

.pill-btn {
  padding: 5px 14px;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-secondary);
  background: transparent;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.pill-btn:hover {
  color: var(--color-text-primary);
}

.pill-btn.active {
  background: var(--bg-hover);
  color: var(--color-text-primary);
  font-weight: 600;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .pill-btn.active {
  background: #ffffff;
  color: #191919;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* 开关滑块 (Switch) */
.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: var(--btn-secondary-bg);
  border: 1px solid var(--border-color);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 24px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 3px;
  bottom: 3px;
  background-color: var(--color-text-muted);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 50%;
}

input:checked + .slider {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

input:checked + .slider:before {
  transform: translateX(20px);
  background-color: #141414;
}

/* Page Scroll Controls */
.page-scroll-controls {
  position: fixed;
  right: 22px;
  bottom: 26px;
  z-index: 980;
  display: flex;
  flex-direction: column;
  gap: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
}

.page-scroll-controls.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.page-scroll-button {
  display: inline-flex;
  width: 44px;
  min-height: 42px;
  padding: 5px 4px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xs);
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  color: var(--color-accent);
  box-shadow: var(--card-shadow);
  font: inherit;
  font-size: 17px;
  line-height: 1;
  cursor: pointer;
  transition: all 0.15s ease;
}

.page-scroll-button span {
  font-size: 10px;
  color: var(--color-text-secondary);
  line-height: 1.1;
}

.page-scroll-button:hover {
  border-color: var(--color-accent);
  background: var(--bg-card-hover);
  color: var(--color-accent-hover);
}

.page-scroll-button.is-disabled {
  opacity: .35;
  pointer-events: none;
}

@media (max-width: 760px) {
  :root { --sidebar-width: 200px; }
  .sidebar { width: 200px; }
  .main-wrapper { margin-left: 200px; min-width: 0; }
  .nav-item { padding: 8px 10px; font-size: 13px; }
  .content-container { padding: 16px; }
  .page-scroll-controls { right: 12px; bottom: 18px; }
}