/* =========================
   Tokens
   ========================= */
:root{
  /* brand */
  --primary-color:#2563eb;
  --primary-hover:#1d4ed8;
  --primary-light:#dbeafe;

  /* semantic */
  --secondary-color:#64748b;
  --success-color:#10b981;
  --warning-color:#f59e0b;
  --error-color:#ef4444;

  /* gray scale */
  --gray-50:#f8fafc; --gray-100:#f1f5f9; --gray-200:#e2e8f0; --gray-300:#cbd5e1;
  --gray-400:#94a3b8; --gray-500:#64748b; --gray-600:#475569; --gray-700:#334155;
  --gray-800:#1e293b; --gray-900:#0f172a;

  /* bg */
  --bg-primary:#ffffff; --bg-secondary:#f8fafc; --bg-tertiary:#f1f5f9;

  /* text */
  --text-primary:#0f172a; --text-secondary:#3b4a62; --text-muted:#5b6b82;

  /* borders/radius */
  --border-color:#e2e8f0;
  --r-sm:8px; --r-md:10px; --r-lg:14px; --r-2xl:16px;
  --border-radius:var(--r-md);
  --border-radius-lg:var(--r-lg);

  /* shadow */
  --shadow-sm:0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow:0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md:0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg:0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);

  /* timing */
  --dur-1:120ms; --dur-2:200ms; --dur-3:300ms;

  /* layout */
  --sidebar-width:260px; --navbar-height:64px;

  /* z-index */
  --z-navbar:1000; --z-sidebar:999; --z-modal:2000; --z-toast:3000; --z-loading:9999;

  color-scheme: light dark;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg-primary:#0b1220; --bg-secondary:#0a0f1a; --bg-tertiary:#0a1322;
    --text-primary:#e8edf8; --text-secondary:#b5c0d1; --text-muted:#93a0b4;
    --border-color:#1f2a3b;
    --gray-100:#101826; --gray-200:#172235; --gray-300:#1c2940;
    --shadow-sm:none; --shadow:none; --shadow-md:none; --shadow-lg:none;
    --primary-light:#20315a;
  }
}
@media (prefers-reduced-motion: reduce){
  *{ animation-duration:1ms !important; animation-iteration-count:1 !important; transition:none !important; }
}

/* =========================
   Reset & Base
   ========================= */
*{ margin:0; padding:0; box-sizing:border-box; }

body{
  font-family:'Inter', system-ui, -apple-system, 'Segoe UI', Roboto,
               'PingFang SC','Hiragino Sans GB','Noto Sans CJK SC','Microsoft YaHei', sans-serif;
  line-height:1.6; color:var(--text-primary); background:var(--bg-secondary);
  overflow-x:hidden; -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
}

/* =========================
   Loading
   ========================= */
.loading-overlay{
  position:fixed; inset:0; background:rgba(255,255,255,0.95);
  display:flex; align-items:center; justify-content:center; z-index:var(--z-loading);
  backdrop-filter:blur(4px);
}
.loading-spinner{ text-align:center; }
.spinner{
  width:40px; height:40px; border:4px solid var(--gray-200); border-top:4px solid var(--primary-color);
  border-radius:50%; animation:spin 1s linear infinite; margin:0 auto 16px;
}
@keyframes spin{ 0%{ transform:rotate(0) } 100%{ transform:rotate(360deg) } }

/* =========================
   Login
   ========================= */
.login-page{ min-height:100vh; display:flex; position:relative; overflow:hidden; }
.login-container{
  flex:1; display:flex; flex-direction:column; justify-content:center; align-items:center;
  padding:2rem; background:var(--bg-primary); z-index:2;
}
.login-header{ text-align:center; margin-bottom:2rem; }
.logo{ display:flex; align-items:center; justify-content:center; gap:12px; margin-bottom:8px; }
.logo i{ font-size:2rem; color:var(--primary-color); }
.logo h1{ font-size:clamp(1.25rem,1rem + 1.2vw,1.75rem); font-weight:700; color:var(--text-primary); }
.subtitle{ color:var(--text-secondary); font-size:.95rem; }
.login-form{ width:100%; max-width:400px; }

/* 关键修复：Tab 面板显示控制 */
.tab-pane{ display:none; }
.tab-pane.active{ display:block; }

.form-group{ margin-bottom:1.5rem; }
.form-group label{ display:block; margin-bottom:.5rem; font-weight:500; color:var(--text-primary); }

.input-group{ position:relative; display:flex; align-items:center; }
.input-group i{ position:absolute; inset-inline-start:12px; color:var(--text-muted); z-index:1; }
.input-group input{
  width:100%; padding:12px 16px 12px 40px; border:2px solid var(--border-color);
  border-radius:var(--border-radius); font-size:.95rem; background:var(--bg-primary);
  transition: border-color var(--dur-2) ease, box-shadow var(--dur-2) ease;
  min-height:44px;
}
.input-group input:focus-visible{
  outline:none; border-color:var(--primary-color); box-shadow:0 0 0 3px var(--primary-light);
}
.toggle-password{
  position:absolute; inset-inline-end:12px; background:none; border:none; color:var(--text-muted);
  cursor:pointer; padding:4px; border-radius:4px; transition: color var(--dur-2) ease, background var(--dur-2) ease;
  min-height:36px; min-width:36px;
}
.toggle-password:hover{ color:var(--text-primary); background:var(--gray-100); }

.login-btn{
  width:100%; padding:12px 24px; background:var(--primary-color); color:#fff; border:none;
  border-radius:var(--border-radius); font-size:1rem; font-weight:500; cursor:pointer;
  display:flex; align-items:center; justify-content:center; gap:8px; margin-bottom:1rem; min-height:44px;
  transition: background var(--dur-2) ease, transform var(--dur-1) ease, box-shadow var(--dur-2) ease;
}
.login-btn:hover{ background:var(--primary-hover); transform:translateY(-1px); box-shadow:var(--shadow-md); }
.login-btn:active{ transform:translateY(0); }

.login-footer{ text-align:center; }
.login-footer a{ color:var(--primary-color); text-decoration:none; font-weight:500; }
.login-footer a:hover{ text-decoration:underline; }

.login-bg{
  flex:1; background:linear-gradient(135deg, var(--primary-color) 0%, #1e40af 100%);
  display:flex; align-items:center; justify-content:center;
}
.bg-pattern{
  width:100%; height:100%;
  background-image:
    radial-gradient(circle at 25% 25%, rgba(255,255,255,0.1) 0%, transparent 50%),
    radial-gradient(circle at 75% 75%, rgba(255,255,255,0.1) 0%, transparent 50%);
  background-size:100px 100px;
}

/* =========================
   Layout
   ========================= */
.main-app{ display:flex; flex-direction:column; height:100vh; }

.top-navbar{
  height:var(--navbar-height); background:var(--bg-primary); border-bottom:1px solid var(--border-color);
  display:flex; align-items:center; justify-content:space-between; padding:0 1.5rem; position:fixed;
  inset:0 0 auto 0; z-index:var(--z-navbar); box-shadow:var(--shadow-sm);
}
.navbar-left{ display:flex; align-items:center; gap:1rem; }
.sidebar-toggle{
  background:none; border:none; font-size:1.25rem; color:var(--text-secondary); cursor:pointer;
  padding:8px; border-radius:var(--border-radius); transition: background var(--dur-2) ease, color var(--dur-2) ease;
  min-height:40px; min-width:40px;
}
.sidebar-toggle:hover{ background:var(--gray-100); color:var(--text-primary); }
.logo-small{ display:flex; align-items:center; gap:8px; font-weight:600; color:var(--text-primary); }
.logo-small i{ color:var(--primary-color); font-size:1.25rem; }
.navbar-right{ display:flex; align-items:center; }

.user-info{
  position:relative; display:flex; align-items:center; gap:8px; cursor:pointer; padding:8px 12px;
  border-radius:var(--border-radius); transition: background var(--dur-2) ease;
}
.user-info:hover{ background:var(--gray-100); }
.user-avatar{
  width:32px; height:32px; background:var(--primary-color); border-radius:50%;
  display:flex; align-items:center; justify-content:center; color:#fff; font-size:.875rem;
}
.user-dropdown{
  position:absolute; top:100%; right:0; background:var(--bg-primary); border:1px solid var(--border-color);
  border-radius:var(--border-radius); box-shadow:var(--shadow-lg); min-width:180px; opacity:0; visibility:hidden;
  transform:translateY(8px); transition: opacity var(--dur-2) ease, transform var(--dur-2) ease, visibility 0s linear var(--dur-2);
  z-index:calc(var(--z-navbar) + 1); padding:4px;
}
.user-info:hover .user-dropdown, .user-info:focus-within .user-dropdown{ opacity:1; visibility:visible; transform:translateY(0); }
.user-dropdown a{
  display:flex; align-items:center; gap:8px; padding:10px 12px; color:var(--text-primary);
  text-decoration:none; transition: background var(--dur-2) ease; border-radius:6px; font-size:.9rem;
}
.user-dropdown a:hover{ background:var(--gray-100); }
@media (hover:none){
  .user-info:hover .user-dropdown{ opacity:0; visibility:hidden; transform:translateY(8px); }
}

.sidebar{
  width:var(--sidebar-width); background:var(--bg-primary); border-right:1px solid var(--border-color);
  position:fixed; top:var(--navbar-height); left:0; bottom:0; overflow-y:auto; transition: transform var(--dur-3) ease;
  z-index:var(--z-sidebar);
  inset-block-start:var(--navbar-height); inset-inline-start:0; inset-block-end:0;
}
.sidebar.collapsed{ transform:translateX(-100%); }
.sidebar-nav{ padding:1rem 0; }
.nav-menu{ list-style:none; }
.nav-item{ margin:0 1rem 4px; }
.nav-link{
  display:flex; align-items:center; gap:12px; padding:12px 16px; color:var(--text-secondary);
  text-decoration:none; position:relative; border-radius:var(--border-radius); font-weight:500;
  transition: background var(--dur-2) ease, color var(--dur-2) ease;
}
.nav-link:hover{ background:var(--gray-100); color:var(--text-primary); }
.nav-item.active .nav-link{ background:var(--primary-light); color:var(--primary-color); font-weight:600; }
.nav-link i{ font-size:1.125rem; width:20px; text-align:center; }

.main-content{
  margin-left:var(--sidebar-width); margin-top:var(--navbar-height); padding:2.5rem;
  min-height:calc(100vh - var(--navbar-height)); transition: margin var(--dur-3) ease, padding var(--dur-2) ease;
  container-type:inline-size;
}
.sidebar.collapsed + .main-content{ margin-left:0; }

/* 页面容器 */
.page{ display:none; content-visibility:auto; contain-intrinsic-size:800px; }
.page.active{ display:block; animation:fadeIn .5s ease; }
@keyframes fadeIn{ from{ opacity:0; transform:translateY(10px) } to{ opacity:1; transform:translateY(0) } }

.page-header{ display:flex; align-items:center; justify-content:space-between; margin-bottom:2rem; flex-wrap:wrap; gap:1rem; }
.page-header h2{ font-size:clamp(1.25rem, .9rem + 1.6vw, 1.875rem); font-weight:700; color:var(--text-primary); }
.page-actions{ display:flex; gap:12px; flex-wrap:wrap; }

/* 按钮 */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px; padding:8px 16px;
  border:1px solid transparent; border-radius:var(--border-radius); font-size:.875rem; font-weight:500; cursor:pointer;
  text-decoration:none; white-space:nowrap; min-height:40px;
  transition: background var(--dur-2) ease, color var(--dur-2) ease, border-color var(--dur-2) ease, transform var(--dur-1) ease, box-shadow var(--dur-2) ease;
}
.btn-primary{ background:var(--primary-color); color:#fff; border-color:var(--primary-color); }
.btn-primary:hover{ background:var(--primary-hover); border-color:var(--primary-hover); transform:translateY(-1px); box-shadow:var(--shadow-md); }
.btn-secondary{ background:var(--bg-primary); color:var(--text-primary); border:1px solid var(--border-color); }
.btn-secondary:hover{ background:var(--gray-100); border-color:var(--gray-300); }
.btn-sm{ padding:6px 12px; font-size:.8125rem; min-height:32px; }
.btn.btn-danger{ background:var(--error-color); color:#fff; border-color:var(--error-color); }
.btn.btn-danger:hover{ background:#d73737; border-color:#d73737; }

/* 统计卡片 */
.stats-grid{ display:grid; grid-template-columns:repeat(auto-fit, minmax(250px,1fr)); gap:1.5rem; margin-bottom:2.5rem; }
.stat-card{
  background:var(--bg-primary); border-radius:var(--border-radius-lg); padding:1.5rem; box-shadow:var(--shadow);
  border:1px solid var(--border-color); transition: transform var(--dur-3) ease, box-shadow var(--dur-3) ease, border-color var(--dur-2) ease;
  display:flex; align-items:center; gap:1.5rem;
}
.stat-card:hover{ transform:translateY(-4px); box-shadow:var(--shadow-lg); border-color:var(--primary-light); }
.stat-icon{
  width:48px; height:48px; border-radius:var(--border-radius); background:var(--primary-light);
  display:flex; align-items:center; justify-content:center; color:var(--primary-color); font-size:1.25rem; flex-shrink:0;
}
.stat-content h3{
  font-size:1.875rem; font-weight:700; color:var(--text-primary); margin-bottom:2px; font-variant-numeric:tabular-nums;
}
.stat-content p{ color:var(--text-secondary); font-size:.875rem; margin:0; }

/* 图表区 */
.charts-grid{ display:grid; grid-template-columns:2fr 1fr; gap:1.5rem; margin-bottom:2.5rem; }
.chart-card{
  background:var(--bg-primary); border-radius:var(--border-radius-lg); border:1px solid var(--border-color);
  box-shadow:var(--shadow); overflow:hidden;
}
.chart-header{ padding:1.25rem 1.5rem; display:flex; align-items:center; justify-content:space-between; border-bottom:1px solid var(--border-color); }
.chart-header h3{ font-size:1.125rem; font-weight:600; color:var(--text-primary); }
.chart-content{ padding:1.5rem; }

/* 表格 */
.table-card{
  background:var(--bg-primary); border-radius:var(--border-radius-lg); border:1px solid var(--border-color);
  box-shadow:var(--shadow); overflow:hidden;
}
.table-header{
  padding:1.25rem 1.5rem; border-bottom:1px solid var(--border-color);
  display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:1rem;
}
.table-header h3{ font-size:1.125rem; font-weight:600; color:var(--text-primary); }
.table-controls{ display:flex; gap:8px; align-items:center; flex-wrap:wrap; }
.search-input{
  padding:8px 12px; border:1px solid var(--border-color); border-radius:var(--border-radius);
  font-size:.875rem; width:200px; transition: border-color var(--dur-2) ease, box-shadow var(--dur-2) ease; min-height:40px;
}
.search-input:focus-visible{ border-color:var(--primary-color); box-shadow:0 0 0 3px var(--primary-light); outline:none; }
input[type="checkbox"], input[type="radio"]{ accent-color:var(--primary-color); }

.table-content{ overflow-x:auto; }
.data-table{ width:100%; border-collapse:collapse; table-layout:fixed; }
.data-table th, .data-table td{
  padding:14px 16px; text-align:left; border-bottom:1px solid var(--border-color); white-space:nowrap;
  overflow:hidden; text-overflow:ellipsis;
}
.data-table th{
  background:var(--bg-secondary); font-weight:600; color:var(--text-primary); font-size:.8rem; text-transform:uppercase; letter-spacing:.5px;
}
.data-table td{ color:var(--text-secondary); font-size:.875rem; }
.data-table tbody tr:hover{ background:var(--primary-light); }
.data-table tbody tr:last-child td{ border-bottom:none; }

/* 分页容器（#dataPagination/#staffPagination/#schoolPagination/#salaryPagination） */
.table-footer{
  padding:1rem 1.5rem; display:flex; justify-content:space-between; align-items:center;
  border-top:1px solid var(--border-color); background-color:var(--bg-secondary);
}
.pagination-info{ font-size:.875rem; color:var(--text-muted); }
.pagination-controls{ display:flex; align-items:center; gap:.75rem; }
.pagination-controls span{ font-size:.875rem; color:var(--text-secondary); font-weight:500; }
.pagination-controls .btn{ border:1px solid var(--border-color); background:var(--bg-primary); }
.pagination-controls .btn:disabled{ opacity:.5; cursor:not-allowed; background:var(--bg-tertiary); }

/* 模态框 */
.modal{
  position:fixed; inset:0; background:rgba(0,0,0,0.5); display:flex; align-items:center; justify-content:center;
  z-index:var(--z-modal); opacity:0; visibility:hidden; transition: opacity var(--dur-3) ease, visibility 0s linear var(--dur-3);
  backdrop-filter:blur(4px);
}
.modal.active{ opacity:1; visibility:visible; transition:opacity var(--dur-3) ease; }
.modal-content{
  background:var(--bg-primary); border-radius:var(--border-radius-lg); box-shadow:var(--shadow-lg); max-width:500px;
  width:90%; max-height:90vh; overflow-y:auto; transform:scale(.95); transition: transform var(--dur-3) ease;
  contain:layout paint;
}
.modal.active .modal-content{ transform:scale(1); }
.modal-header{
  padding:1.25rem 1.5rem; border-bottom:1px solid var(--border-color); display:flex; align-items:center; justify-content:space-between;
}
.modal-header h3{ font-size:1.25rem; font-weight:600; color:var(--text-primary); }
.modal-close{
  background:none; border:none; font-size:1.25rem; color:var(--text-muted); cursor:pointer; padding:4px; border-radius:4px;
  transition: color var(--dur-2) ease, background var(--dur-2) ease; min-width:36px; min-height:36px;
}
.modal-close:hover{ background:var(--gray-100); color:var(--text-primary); }
.modal-body{ padding:1.5rem; }
body.modal-open{ overflow:hidden; scrollbar-gutter:stable; }

/* Toast */
.toast{
  position:fixed; top:20px; right:20px; background:var(--bg-primary); border:1px solid var(--border-color);
  border-radius:var(--border-radius); box-shadow:var(--shadow-lg); padding:16px; min-width:300px; z-index:var(--z-toast);
  transform:translateX(calc(100% + 20px)); opacity:0; visibility:hidden;
  transition: opacity var(--dur-3) ease, transform var(--dur-3) ease, visibility 0s linear var(--dur-3);
}
.toast.show{ transform:translateX(0); opacity:1; visibility:visible; transition: opacity var(--dur-3) ease, transform var(--dur-3) ease; }
.toast-content{ display:flex; align-items:center; gap:12px; }
.toast-icon{ font-size:1.25rem; }
.toast.success .toast-icon{ color:var(--success-color); }
.toast.error .toast-icon{ color:var(--error-color); }
.toast.warning .toast-icon{ color:var(--warning-color); }
.toast-message{ color:var(--text-primary); font-weight:500; }

/* Tabs */
.tabs{ display:flex; gap:8px; margin-bottom:1.5rem; border-bottom:1px solid var(--border-color); padding-bottom:8px; }
.tab-btn{
  padding:8px 16px; border:none; background:transparent; border-radius:8px; cursor:pointer; font-weight:600; color:var(--text-secondary);
  transition: color var(--dur-2) ease, box-shadow var(--dur-2) ease;
}
.tab-btn.active{ color:var(--primary-color); box-shadow:0 2px 0 var(--primary-color); }

/* Utilities */
.hidden{ display:none !important; }
.modal-open{ overflow:hidden; }
.text-success{ color:var(--success-color); }
.text-error{ color:var(--error-color); }
.text-center{ text-align:center; }
.text-muted{ color:var(--text-muted); }

/* Forms in modal */
.form-actions{ display:flex; justify-content:flex-end; gap:1rem; margin-top:1.5rem; }
.modal-form .form-group input,
.modal-form .form-group select,
.modal-form .form-group textarea{
  width:100%; padding:10px 12px; border:1px solid var(--border-color); border-radius:var(--border-radius);
  background:var(--bg-primary); color:var(--text-primary); font-size:.9rem;
  transition: border-color var(--dur-2) ease, box-shadow var(--dur-2) ease;
  min-height:40px;
}
.modal-form .form-group textarea{ min-height:96px; resize:vertical; }
.modal-form .form-group input:focus-visible,
.modal-form .form-group select:focus-visible,
.modal-form .form-group textarea:focus-visible{
  outline:none; border-color:var(--primary-color); box-shadow:0 0 0 3px var(--primary-light);
}

/* =========================
   Responsive
   ========================= */
@container (max-width: 900px){
  .charts-grid{ grid-template-columns:1fr; }
}
@media (max-width: 1024px){
  .charts-grid{ grid-template-columns:1fr; }
}

/* =========================
   Print
   ========================= */
@media print{
  .top-navbar,.sidebar,.page-actions,.btn,.toast,.modal{ display:none !important; }
  .main-content{ margin:0; padding:0; }
}

/* 1) 锁定原生控件为浅色渲染，避免白字白底 */
:root{ color-scheme: light; }

/* 2) 统一原生控件可读性（日期/月份/时间/下拉与搜索输入） */
.search-input,
input[type="date"],
input[type="month"],
input[type="time"],
select{
  color: var(--text-primary);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
}

input[type="date"],
input[type="month"],
input[type="time"],
select{
  padding: 8px 12px;
  min-height: 40px;
}

/* WebKit 日期/时间内部文字强制可见 */
input[type="date"]::-webkit-datetime-edit,
input[type="month"]::-webkit-datetime-edit,
input[type="time"]::-webkit-datetime-edit{
  color: var(--text-primary);
}
input[type="date"]::-webkit-calendar-picker-indicator,
input[type="month"]::-webkit-calendar-picker-indicator,
input[type="time"]::-webkit-calendar-picker-indicator{
  opacity:.7; cursor:pointer;
}

/* 3) 美化 <select> 下拉箭头并保证交互 */
select{
  appearance:none; -webkit-appearance:none; -moz-appearance:none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--text-muted) 50%),
    linear-gradient(135deg, var(--text-muted) 50%, transparent 50%),
    linear-gradient(var(--border-color), var(--border-color));
  background-position:
    calc(100% - 18px) 52%,
    calc(100% - 12px) 52%,
    calc(100% - 2.25rem) 50%;
  background-size:6px 6px, 6px 6px, 1px 60%;
  background-repeat:no-repeat;
  padding-right: 2.5rem;
}
select:focus-visible{
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-light);
  outline: none;
}

/* 4) 分页区域文本可见 */
.table-footer{ color: var(--text-secondary); }

/* 5) 考勤弹窗内辅助布局与控件（不改 HTML） */
.modal-form .choice-row{
  display:flex; gap:1rem; flex-wrap:wrap;
}
.modal-form .choice-row label{
  display:flex; align-items:center; gap:.5rem; color:var(--text-secondary);
}
.modal-form .time-inline{
  display:flex; align-items:center; gap:.5rem;
}
.modal-form .time-inline select,
.modal-form .half-select select{
  min-width: 90px;
}
.modal-form .sep{ color: var(--text-muted); }
.modal-form input[readonly]{
  background: var(--bg-tertiary);
  color: var(--text-secondary);
}

/* 6) 防止登录/注册同时显示（兜底） */
.tab-pane{ display:none; }
.tab-pane.active{ display:block; }
/* 交互脉冲网格 */
.login-bg{ position:relative; overflow:hidden; background:linear-gradient(135deg,#0b1220,#0f172a); }
.login-bg .pulse-canvas{ position:absolute; inset:0; width:100%; height:100%; display:block; }
@media (prefers-color-scheme: light){
  .login-bg{ background:linear-gradient(135deg,#eef2ff,#e6f0ff); }
}
@media (prefers-reduced-motion: reduce){
  .login-bg .pulse-canvas{ opacity:.85; }
}