/* =========================================================
 * 龙百AI 管理后台 — Bootstrap 5 主题增强（PHP 式服务端模板）
 * 做法：覆盖 Bootstrap CSS 变量 + 显式重写硬编码组件色，
 *       统一升级为精致的「靛蓝」后台主题。不改页面结构。
 * ========================================================= */

/* ---------- 设计令牌 ---------- */
:root {
  /* 品牌主色：靛蓝 */
  --bs-primary: #4F46E5;
  --bs-primary-rgb: 79, 70, 229;
  --bs-link-color: #4F46E5;
  --bs-link-color-rgb: 79, 70, 229;
  --bs-link-hover-color: #4338CA;
  --bs-link-hover-color-rgb: 67, 56, 202;

  /* 语义色（工具类 .text-* / .bg-* / .badge 均走这些 rgb 变量） */
  --bs-secondary: #64748B;
  --bs-secondary-rgb: 100, 116, 139;
  --bs-success: #16A34A;
  --bs-success-rgb: 22, 163, 74;
  --bs-danger: #DC2626;
  --bs-danger-rgb: 220, 38, 38;
  --bs-warning: #D97706;
  --bs-warning-rgb: 217, 119, 6;
  --bs-info: #0891B2;
  --bs-info-rgb: 8, 145, 178;
  --bs-light: #F4F5F7;
  --bs-light-rgb: 244, 245, 247;
  --bs-dark: #1B1F32;
  --bs-dark-rgb: 27, 31, 50;

  /* 中性色 / 排版 */
  --bs-body-bg: #F4F5F7;
  --bs-body-color: #1F2937;
  --bs-secondary-color: #6B7280;
  --bs-tertiary-color: #9CA3AF;
  --bs-emphasis-color: #111827;
  --bs-border-color: #E5E7EB;
  --bs-border-color-translucent: rgba(17, 24, 39, .08);
  --bs-body-font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --bs-font-sans-serif: var(--bs-body-font-family);
  --bs-body-font-size: 14px;
  --bs-body-font-weight: 400;
  --bs-body-line-height: 1.55;

  /* 圆角 */
  --bs-border-radius: 8px;
  --bs-border-radius-sm: 6px;
  --bs-border-radius-lg: 10px;
  --bs-border-radius-xl: 12px;
  --bs-border-radius-xxl: 14px;
  --bs-border-radius-pill: 999px;

  /* 阴影：极轻单层 */
  --bs-box-shadow-sm: 0 1px 2px rgba(16, 24, 40, .05);
  --bs-box-shadow: 0 1px 3px rgba(16, 24, 40, .08), 0 1px 2px rgba(16, 24, 40, .04);
  --bs-box-shadow-lg: 0 8px 24px rgba(16, 24, 40, .10);

  /* 焦点环 */
  --bs-focus-ring-color: rgba(79, 70, 229, .22);

  /* 侧栏专属令牌 */
  --sidebar-bg: #1B1F32;
  --sidebar-width: 224px;
  --sidebar-width-sm: 64px;
}

/* ---------- 全局排版 ---------- */
body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
  font-weight: 600;
  letter-spacing: -.01em;
  color: #111827;
}
.text-muted { color: #9CA3AF !important; }
/* 数字等宽对齐（统计值 / 表格数值列） */
.stat-card .num, .table td, .info-value {
  font-variant-numeric: tabular-nums;
}

/* ---------- 卡片 ---------- */
.card {
  --bs-card-border-color: #EDF0F3;
  --bs-card-border-radius: 12px;
  --bs-card-cap-bg: transparent;
  --bs-card-cap-color: #374151;
  border: 1px solid #EDF0F3;
}
.card.shadow-sm, .card.shadow {
  box-shadow: var(--bs-box-shadow-sm) !important;
  transition: box-shadow .18s ease;
}
.card-header {
  background: transparent;
  border-bottom: 1px solid #EDF0F3;
  font-weight: 600;
  font-size: 14px;
  color: #374151;
  padding: 14px 20px;
}
.card-body { padding: 20px; }

/* ---------- 表格 ---------- */
.table {
  --bs-table-color: #1F2937;
  --bs-table-border-color: #EEF0F3;
  --bs-table-striped-bg: #FAFBFC;
  --bs-table-hover-bg: #F3F4FF;
  font-size: 14px;
  margin-bottom: 0;
}
.table > thead th {
  background: #F8F9FB;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: #6B7280;
  border-bottom: 1px solid #E5E7EB;
  padding: 12px 16px;
  white-space: nowrap;
}
.table > tbody td {
  padding: 12px 16px;
  vertical-align: middle;
  border-color: #F1F3F6;
}
.table-actions { white-space: nowrap; }
.table-actions .btn + .btn,
.table-actions .btn + form,
.table-actions form + .btn { margin-left: 6px; }

/* ---------- 按钮 ---------- */
.btn {
  --bs-btn-font-weight: 500;
  --bs-btn-border-radius: 8px;
  letter-spacing: .01em;
  transition: background-color .15s ease, border-color .15s ease,
              color .15s ease, box-shadow .15s ease, transform .05s ease;
}
.btn:active { transform: translateY(1px); }
.btn:focus-visible { box-shadow: 0 0 0 3px var(--bs-focus-ring-color); }
.btn-sm { --bs-btn-border-radius: 7px; }
.btn-lg { --bs-btn-border-radius: 10px; }

/* 主色按钮（Bootstrap 编译产物硬编码 #0d6efd，必须显式覆盖） */
.btn-primary {
  --bs-btn-bg: #4F46E5;
  --bs-btn-border-color: #4F46E5;
  --bs-btn-hover-bg: #4338CA;
  --bs-btn-hover-border-color: #4338CA;
  --bs-btn-active-bg: #3730A3;
  --bs-btn-active-border-color: #3730A3;
  --bs-btn-disabled-bg: #4F46E5;
  --bs-btn-disabled-border-color: #4F46E5;
}
.btn-outline-primary {
  --bs-btn-color: #4F46E5;
  --bs-btn-border-color: #C7C9F5;
  --bs-btn-hover-bg: #4F46E5;
  --bs-btn-hover-border-color: #4F46E5;
  --bs-btn-active-bg: #4338CA;
  --bs-btn-active-border-color: #4338CA;
  --bs-btn-disabled-color: #4F46E5;
  --bs-btn-disabled-border-color: #C7C9F5;
}
.btn-success {
  --bs-btn-bg: #16A34A; --bs-btn-border-color: #16A34A;
  --bs-btn-hover-bg: #15803D; --bs-btn-hover-border-color: #15803D;
  --bs-btn-active-bg: #166534; --bs-btn-active-border-color: #166534;
}
.btn-outline-success {
  --bs-btn-color: #16A34A; --bs-btn-border-color: #BBE7C9;
  --bs-btn-hover-bg: #16A34A; --bs-btn-hover-border-color: #16A34A;
  --bs-btn-active-bg: #15803D; --bs-btn-active-border-color: #15803D;
}
.btn-danger {
  --bs-btn-bg: #DC2626; --bs-btn-border-color: #DC2626;
  --bs-btn-hover-bg: #B91C1C; --bs-btn-hover-border-color: #B91C1C;
  --bs-btn-active-bg: #991B1B; --bs-btn-active-border-color: #991B1B;
}
.btn-outline-danger {
  --bs-btn-color: #DC2626; --bs-btn-border-color: #F3C4C4;
  --bs-btn-hover-bg: #DC2626; --bs-btn-hover-border-color: #DC2626;
  --bs-btn-active-bg: #B91C1C; --bs-btn-active-border-color: #B91C1C;
}
.btn-warning {
  --bs-btn-bg: #D97706; --bs-btn-border-color: #D97706;
  --bs-btn-hover-bg: #B45309; --bs-btn-hover-border-color: #B45309;
}
.btn-secondary {
  --bs-btn-bg: #64748B; --bs-btn-border-color: #64748B;
  --bs-btn-hover-bg: #475569; --bs-btn-hover-border-color: #475569;
  --bs-btn-active-bg: #334155; --bs-btn-active-border-color: #334155;
}
.btn-outline-secondary {
  --bs-btn-color: #64748B; --bs-btn-border-color: #D5DAE2;
  --bs-btn-hover-bg: #64748B; --bs-btn-hover-border-color: #64748B;
  --bs-btn-active-bg: #475569; --bs-btn-active-border-color: #475569;
}
.btn-outline-light {
  --bs-btn-color: rgba(255, 255, 255, .82);
  --bs-btn-border-color: rgba(255, 255, 255, .28);
  --bs-btn-hover-bg: rgba(255, 255, 255, .14);
  --bs-btn-hover-border-color: rgba(255, 255, 255, .5);
  --bs-btn-hover-color: #fff;
}

/* ---------- 表单 ---------- */
.form-label {
  font-size: 13px;
  font-weight: 500;
  color: #4B5563;
  margin-bottom: 6px;
}
.form-control, .form-select {
  border-color: #DDE1E7;
  border-radius: 8px;
  font-size: 14px;
  color: #1F2937;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.form-control::placeholder { color: #B4BAC4; }
.form-control:focus, .form-select:focus {
  border-color: #A5B4FC;
  box-shadow: 0 0 0 3px rgba(79, 70, 229, .14);
}
.form-control-lg { border-radius: 10px; font-size: 15px; padding: 11px 16px; }
.form-check-input:checked {
  background-color: #4F46E5;
  border-color: #4F46E5;
}
.form-check-input:focus {
  border-color: #A5B4FC;
  box-shadow: 0 0 0 3px rgba(79, 70, 229, .14);
}

/* ---------- 徽章 ---------- */
.badge {
  --bs-badge-font-weight: 500;
  --bs-badge-border-radius: 6px;
  padding: 5px 9px;
  letter-spacing: .02em;
}

/* ---------- 分页 ---------- */
.pagination-wrap {
  display: flex;
  justify-content: flex-end;
  margin-top: 16px;
}
.pagination {
  --bs-pagination-border-radius: 8px;
  --bs-pagination-color: #4B5563;
  --bs-pagination-border-color: #E5E7EB;
  --bs-pagination-hover-bg: #F3F4FF;
  --bs-hover-color: #4F46E5;
  --bs-pagination-hover-border-color: #E5E7EB;
  --bs-pagination-focus-color: #4F46E5;
  --bs-pagination-focus-bg: #F3F4FF;
  --bs-pagination-focus-box-shadow: 0 0 0 3px rgba(79, 70, 229, .14);
  --bs-pagination-active-bg: #4F46E5;
  --bs-pagination-active-border-color: #4F46E5;
  --bs-pagination-disabled-color: #C4C9D2;
  --bs-pagination-disabled-bg: #fff;
  --bs-pagination-disabled-border-color: #EDF0F3;
}
.page-link { font-weight: 500; padding: 6px 13px; }

/* ---------- 模态框 ---------- */
.modal-content {
  --bs-modal-border-radius: 14px;
  border: none;
  box-shadow: var(--bs-box-shadow-lg);
}
.modal-header {
  border-bottom: 1px solid #EDF0F3;
  padding: 16px 20px;
}
.modal-title { font-size: 16px; font-weight: 600; color: #111827; }
.modal-body { padding: 20px; }
.modal-footer {
  border-top: 1px solid #EDF0F3;
  padding: 14px 20px;
}

/* ---------- 统计卡片 ---------- */
.stat-card { text-align: center; padding: 8px 0; }
.stat-card .num {
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.2;
}
.stat-card .label {
  color: #6B7280;
  font-size: 13px;
  margin-top: 6px;
}
.col-md > .card:hover, .col > .card:hover { box-shadow: var(--bs-box-shadow) !important; }

/* ---------- 授权码 / 只读信息块 ---------- */
.authkey-box {
  word-break: break-all;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 14px;
  background: #F4F5F7;
  border: 1px solid #E5E7EB;
  padding: 12px 14px;
  border-radius: 10px;
  color: #374151;
}

/* =========================================================
 * 左侧固定侧栏布局
 * ========================================================= */
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar {
  width: var(--sidebar-width);
  flex: none;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  z-index: 1000;
}
.sidebar-brand {
  padding: 18px 20px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -.01em;
  border-bottom: 1px solid rgba(255, 255, 255, .07);
}
.sidebar-brand a {
  color: #fff;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}
.sidebar-nav {
  flex: 1;
  padding: 12px 12px;
  overflow-y: auto;
}
.sidebar-link {
  display: block;
  padding: 10px 14px;
  margin-bottom: 2px;
  color: rgba(255, 255, 255, .66);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  border-radius: 8px;
  transition: background-color .15s ease, color .15s ease;
}
.sidebar-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, .07);
}
.sidebar-link.active {
  color: #fff;
  background: linear-gradient(90deg, #4F46E5, #6366F1);
  box-shadow: 0 2px 8px rgba(79, 70, 229, .35);
}
/* 分组分隔（header.ejs 使用 .sidebar-divider 分组菜单） */
.sidebar-divider {
  height: 1px;
  background: rgba(255, 255, 255, .08);
  margin: 12px 14px;
}
.sidebar-footer {
  padding: 12px 16px;
  border-top: 1px solid rgba(255, 255, 255, .07);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.sidebar-user {
  color: rgba(255, 255, 255, .66);
  font-size: 13px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.admin-main {
  margin-left: var(--sidebar-width);
  width: calc(100% - var(--sidebar-width));
}

/* 窄屏收窄为图标栏 */
@media (max-width: 768px) {
  .admin-sidebar { width: var(--sidebar-width-sm); }
  .sidebar-brand { padding: 18px 6px; font-size: 13px; text-align: center; }
  .sidebar-nav { padding: 12px 6px; }
  .sidebar-link { padding: 10px 6px; text-align: center; font-size: 13px; }
  .sidebar-divider { margin: 12px 6px; }
  .sidebar-footer { flex-direction: column; }
  .sidebar-user { display: none; }
  .admin-main {
    margin-left: var(--sidebar-width-sm);
    width: calc(100% - var(--sidebar-width-sm));
  }
}

/* =========================================================
 * 登录页
 * ========================================================= */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
body.bg-dark {
  background: radial-gradient(1200px 600px at 20% -10%, #3730A3 0%, transparent 55%),
              linear-gradient(135deg, #1B1F32 0%, #111827 100%) !important;
}
.login-wrap .card {
  border: none;
  border-radius: 16px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .35);
}
.login-wrap .card h4 { font-size: 19px; font-weight: 600; }

/* =========================================================
 * Flash 提示浮层（脱离文档流，3 秒自动淡出）
 * ========================================================= */
.flash-wrap {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1080;
  width: max-content;
  max-width: min(560px, 92vw);
  pointer-events: none;
}
.flash-wrap .alert {
  pointer-events: auto;
  border: none;
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(16, 24, 40, .16);
}