/**
 * admin-web/src/css/app.css
 * 乐雅管理后台全局样式（纯静态包，无构建）。
 * 设计基线：LEYAR_SAAS_UI_VISUAL_LANGUAGE.md
 *   - 主色雅绿 #21A447 / 辅色乐橙 #FF8A00 / 底乳白 #FFF7EC
 *   - 手机端风格：汉堡菜单 + 左侧抽屉；桌面端自适应 + 表格横向滚动（规则文档 §10）
 *   - 无重阴影/玻璃态/复杂渐变
 */
:root {
  --leya-green-800: #117A38;
  --leya-green-700: #188F40;
  --leya-green-600: #21A447;
  --leya-green-500: #34B75A;
  --leya-green-100: #E8F7EE;
  --leya-green-50:  #F3FBF6;
  --leya-orange-600:#E87800;
  --leya-orange-500:#FF8A00;
  --leya-orange-100:#FFF0D9;
  --leya-orange-50: #FFF8ED;
  --leya-cream-100:#FFF7EC;
  --leya-cream-50: #FFFCF7;
  --text-primary:   #172033;
  --text-secondary: #5D667A;
  --text-tertiary:  #8A94A6;
  --text-disabled:  #B7BFCC;
  --bg-page:   #F8FAF7;
  --bg-card:   #FFFFFF;
  --bg-warm:   #FFF7EC;
  --border-light:  #E6EAE0;
  --border-strong: #D2D9CD;
  --danger:      #E5484D;
  --danger-bg:   #FFF0F0;
  --warning:     #FF8A00;
  --warning-bg:  #FFF0D9;
  --success:     #21A447;
  --success-bg:  #E8F7EE;
  --font-xs: 12px;
  --font-sm: 13px;
  --font-md: 14px;
  --font-lg: 16px;
  --font-xl: 20px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-pill: 999px;
  --shadow-card: 0 4px 14px rgba(23, 32, 51, 0.06);
  --phone-w: 390px;
  --sidebar-w: 232px;
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text-primary);
  background: var(--bg-page);
  font-size: 14px;
  line-height: 1.5;
}
#shell { min-height: 100vh; }
#app { min-height: 100vh; }

/* ============ 通用控件 ============ */
button { font-family: inherit; cursor: pointer; border: none; background: none; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 16px; border-radius: var(--radius-md);
  font-size: var(--font-md); font-weight: 500; line-height: 1;
  transition: background .15s, opacity .15s;
}
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary { background: var(--leya-green-600); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--leya-green-700); }
.btn-ghost { background: var(--leya-green-50); color: var(--leya-green-700); }
.btn-ghost:hover:not(:disabled) { background: var(--leya-green-100); }
.btn-outline { background: #fff; border: 1px solid var(--border-strong); color: var(--text-primary); }
.btn-outline:hover:not(:disabled) { border-color: var(--leya-green-600); color: var(--leya-green-700); }
.btn-danger { background: var(--danger-bg); color: var(--danger); }
.btn-block { width: 100%; }
.btn-lg { padding: 12px 20px; border-radius: var(--radius-lg); font-size: var(--font-lg); }

input, select, textarea {
  font-family: inherit; font-size: var(--font-md); color: var(--text-primary);
  border: 1px solid var(--border-strong); border-radius: var(--radius-md);
  padding: 9px 12px; background: #fff; width: 100%;
  outline: none; transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--leya-green-600);
  box-shadow: 0 0 0 3px rgba(33, 164, 71, 0.10);
}
input[type="checkbox"], input[type="radio"] { width: 18px; height: 18px; accent-color: var(--leya-green-600); vertical-align: middle; }
label { font-size: var(--font-md); }

/* ============ 卡片 ============ */
.card {
  background: var(--bg-card); border-radius: var(--radius-lg);
  border: 1px solid var(--border-light); box-shadow: var(--shadow-card);
}

/* ============ Toast ============ */
.toast {
  position: fixed; top: 24px; left: 50%; transform: translateX(-50%);
  background: rgba(23, 32, 51, .88); color: #fff; font-size: var(--font-sm);
  padding: 10px 18px; border-radius: var(--radius-pill);
  opacity: 0; pointer-events: none; transition: opacity .25s;
  z-index: 9999; max-width: 80vw;
}
.toast.show { opacity: 1; }
.toast.ok { background: var(--leya-green-700); }
.toast.err { background: var(--danger); }

/* ============ 登录页 ============ */
.login-screen {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: var(--bg-warm); padding: 24px;
}
.login-card {
  width: 100%; max-width: 380px; background: #fff; border-radius: var(--radius-lg);
  padding: 32px 28px; box-shadow: var(--shadow-card); border: 1px solid var(--border-light);
}
.login-brand { text-align: center; margin-bottom: 24px; }
.login-brand .logo {
  width: 56px; height: 56px; border-radius: 16px; background: var(--leya-green-100);
  display: inline-flex; align-items: center; justify-content: center; margin-bottom: 10px;
  color: var(--leya-green-700); font-size: 28px;
}
.login-brand h1 { font-size: var(--font-xl); margin: 0; color: var(--text-primary); }
.login-brand p { margin: 4px 0 0; color: var(--text-tertiary); font-size: var(--font-sm); }
.login-field { margin-bottom: 16px; }
.login-field label { display: block; margin-bottom: 6px; color: var(--text-secondary); font-size: var(--font-sm); }
.login-remember { margin: -4px 0 4px; }
.remember-label {
  display: inline-flex; align-items: center; gap: 8px; cursor: pointer;
  color: var(--text-secondary); font-size: var(--font-sm); user-select: none;
}
.remember-label input[type="checkbox"] { width: 15px; height: 15px; margin: 0; }
.login-submit { margin-top: 8px; }
.login-err {
  color: var(--danger); font-size: var(--font-sm); background: var(--danger-bg);
  padding: 8px 10px; border-radius: var(--radius-sm); margin-top: 12px;
}

/* ============ 主布局：顶栏 + 抽屉 + 内容 ============ */
.layout {
  min-height: 100vh; display: flex; flex-direction: column; background: var(--bg-page);
}
.topbar {
  position: sticky; top: 0; z-index: 50;
  height: 56px; background: #fff; border-bottom: 1px solid var(--border-light);
  display: flex; align-items: center; padding: 0 16px; gap: 12px;
}
.topbar .menu-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: var(--radius-md); background: transparent; font-size: 22px;
}
.topbar .menu-btn:hover { background: var(--bg-warm); }
.topbar .brand { font-weight: 600; font-size: var(--font-lg); color: var(--leya-green-700); }
.topbar .spacer { flex: 1; }
.topbar .admin-chip {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--leya-green-50); color: var(--leya-green-700);
  border-radius: var(--radius-pill); padding: 5px 12px; font-size: var(--font-sm);
}
.topbar .logout-btn { color: var(--text-tertiary); font-size: var(--font-sm); padding: 6px 10px; border-radius: var(--radius-sm); }
.topbar .logout-btn:hover { color: var(--danger); background: var(--danger-bg); }

/* 抽屉 */
.drawer-mask {
  position: fixed; inset: 0; background: rgba(23,32,51,.4); z-index: 60;
  opacity: 0; pointer-events: none; transition: opacity .2s;
}
.drawer-mask.show { opacity: 1; pointer-events: auto; }
.drawer {
  position: fixed; top: 0; bottom: 0; left: 0; z-index: 61;
  width: var(--sidebar-w); max-width: 78vw; background: #fff;
  transform: translateX(-100%); transition: transform .22s ease;
  display: flex; flex-direction: column;
  box-shadow: 8px 0 24px rgba(23,32,51,.08);
}
.drawer.open { transform: translateX(0); }
.drawer-head {
  padding: 20px 18px 14px; display: flex; align-items: center; gap: 10px;
  border-bottom: 1px solid var(--border-light);
}
.drawer-head .logo {
  width: 40px; height: 40px; border-radius: 12px; background: var(--leya-green-100);
  display: inline-flex; align-items: center; justify-content: center; color: var(--leya-green-700);
}
.drawer-head .title { font-weight: 600; font-size: var(--font-md); }
.drawer-nav { padding: 10px 8px; flex: 1; overflow-y: auto; }
.drawer-nav .nav-section { margin-top: 12px; }
.drawer-nav .nav-section-title {
  font-size: var(--font-xs); color: var(--text-tertiary); padding: 8px 10px 4px;
  letter-spacing: .04em;
}
.drawer-nav .nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: var(--radius-md); cursor: pointer;
  color: var(--text-secondary); font-size: var(--font-md);
}
.drawer-nav .nav-item:hover { background: var(--bg-warm); color: var(--text-primary); }
.drawer-nav .nav-item.active { background: var(--leya-green-100); color: var(--leya-green-700); font-weight: 600; }
.drawer-nav .nav-item .icon { font-size: 18px; width: 22px; text-align: center; }
.drawer-foot {
  padding: 12px 16px; border-top: 1px solid var(--border-light);
  font-size: var(--font-xs); color: var(--text-tertiary);
}

/* ============ 内容区 ============ */
.content { flex: 1; padding: 16px; max-width: 1080px; margin: 0 auto; width: 100%; }
.page-title { font-size: var(--font-xl); margin: 0 0 4px; color: var(--text-primary); }
.page-sub { font-size: var(--font-sm); color: var(--text-tertiary); margin: 0 0 16px; }
.section { margin-top: 20px; }
.section-title {
  font-size: var(--font-lg); font-weight: 600; margin: 0 0 12px;
  color: var(--text-primary); display: flex; align-items: center; gap: 8px;
}
.section-title::before {
  content: ""; display: inline-block; width: 4px; height: 16px;
  background: var(--leya-green-600); border-radius: var(--radius-pill);
}

/* ============ 设置页表单 ============ */
.settings-card { padding: 16px; }
.field-row {
  display: flex; flex-direction: column; gap: 6px;
  padding: 12px 0; border-bottom: 1px solid var(--border-light);
}
.field-row:last-child { border-bottom: none; }
.field-row .field-label { font-size: var(--font-md); color: var(--text-primary); font-weight: 500; }
.field-row .field-desc { font-size: var(--font-xs); color: var(--text-tertiary); }
.field-row .field-control { margin-top: 4px; }
.field-row.locked {
  background: var(--bg-warm); border-radius: var(--radius-md);
  padding: 12px; margin: 4px -8px 8px;
}
.field-row.locked .lock-tag {
  display: inline-block; margin-left: 8px; font-size: var(--font-xs);
  background: var(--warning-bg); color: var(--warning);
  padding: 2px 8px; border-radius: var(--radius-pill);
}
.field-row .hint-row { display: flex; gap: 8px; margin-top: 6px; }
.field-row .hint-row .btn { font-size: var(--font-xs); padding: 5px 10px; }
.switch-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.switch-row .switch-text { flex: 1; }
.switch {
  position: relative; display: inline-block; width: 44px; height: 26px; flex-shrink: 0;
}
.switch input { opacity: 0; width: 0; height: 0; }
.switch .slider {
  position: absolute; cursor: pointer; inset: 0; background: var(--border-strong);
  border-radius: var(--radius-pill); transition: background .2s;
}
.switch .slider::before {
  content: ""; position: absolute; height: 20px; width: 20px; left: 3px; top: 3px;
  background: #fff; border-radius: 50%; transition: transform .2s;
}
.switch input:checked + .slider { background: var(--leya-green-600); }
.switch input:checked + .slider::before { transform: translateX(18px); }
.settings-actions {
  display: flex; gap: 12px; padding: 16px 0 0; justify-content: flex-end;
  position: sticky; bottom: 0; background: var(--bg-page); padding-top: 16px;
}

/* ============ 看板/列表占位 ============ */
.placeholder-card {
  padding: 24px; text-align: center; color: var(--text-tertiary);
  background: var(--bg-warm); border: 1px dashed var(--border-strong);
  border-radius: var(--radius-md); margin-top: 16px;
}
.stat-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px;
}
.stat-card { padding: 14px; }
.stat-card .stat-label { font-size: var(--font-sm); color: var(--text-secondary); }
.stat-card .stat-value { font-size: 24px; font-weight: 700; margin-top: 4px; color: var(--leya-green-700); }
.stat-card.warn .stat-value { color: var(--leya-orange-600); }
.stat-value.warn { color: var(--leya-orange-600); }

/* 看板业务明细 */
.section-h { font-size: 16px; font-weight: 600; margin: 20px 0 10px; }
.biz-stat-row { padding: 14px; }
.biz-row-head { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.biz-name { font-size: 15px; font-weight: 600; }
.tag { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; }
.tag-warn { background: rgba(245,158,11,0.12); color: var(--leya-orange-600); }
.tag-default { background: rgba(157,163,176,0.18); color: var(--text-secondary); }
.biz-row-stats { display: flex; flex-wrap: wrap; gap: 14px; font-size: 13px; }
.text-success { color: var(--leya-green-700); }
.text-warning { color: var(--leya-orange-600); }
.text-tertiary { color: var(--text-tertiary); }
.text-secondary { color: var(--text-secondary); }

/* ============ 响应式：桌面端表格横向滚动 ============ */
@media (min-width: 768px) {
  .content { padding: 24px; }
}
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: var(--radius-md); }
table.data { width: 100%; min-width: 640px; border-collapse: collapse; font-size: var(--font-sm); }
table.data th, table.data td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border-light); }
table.data th { background: var(--bg-warm); color: var(--text-secondary); font-weight: 600; }
table.data tr:hover { background: var(--leya-green-50); }

/* ============ 加载/空/错误状态 ============ */
.state-loading, .state-empty, .state-error {
  padding: 40px 16px; text-align: center; color: var(--text-tertiary);
}
.state-error { color: var(--danger); }
.spinner {
  display: inline-block; width: 24px; height: 24px;
  border: 3px solid var(--border-light); border-top-color: var(--leya-green-600);
  border-radius: 50%; animation: spin .8s linear infinite; vertical-align: middle; margin-right: 8px;
}
@keyframes spin { to { transform: rotate(360deg); } }
/* ============ 请假审批（M4.2）============ */
.view-leave .view-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.view-leave .filter-bar { display: flex; gap: 12px; }
.filter-select { padding: 6px 12px; border: 1px solid var(--border-light); border-radius: var(--radius-sm); font-size: var(--font-sm); background: #fff; }
.leave-list { display: flex; flex-direction: column; gap: 12px; }
.leave-card { background: #fff; border-radius: var(--radius-md); padding: 16px; box-shadow: 0 1px 3px rgba(0,0,0,0.06); }
.leave-card.status-待确认 { border-left: 4px solid var(--leya-orange-600); }
.leave-card.status-已批准 { border-left: 4px solid var(--leya-green-600); }
.leave-card.status-已驳回 { border-left: 4px solid var(--danger); }
.leave-card .card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.leave-card .student-name { font-size: var(--font-md); font-weight: 600; }
.status-tag { padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.tag-待确认 { background: var(--leya-orange-50); color: var(--leya-orange-600); }
.tag-已批准 { background: var(--leya-green-50); color: var(--leya-green-700); }
.tag-已驳回 { background: #FFEBEE; color: var(--danger); }
.leave-card .card-meta { font-size: var(--font-sm); color: var(--text-secondary); line-height: 1.8; }
.leave-card .meta-label { color: var(--text-tertiary); margin-right: 4px; }
.leave-card .reject-text { color: var(--danger); }
.card-actions { margin-top: 12px; display: flex; gap: 12px; }
.btn-sm { padding: 6px 16px; font-size: var(--font-sm); height: auto; line-height: 1.4; }
.btn-warn { background: var(--leya-orange-600); color: #fff; border: none; border-radius: var(--radius-sm); cursor: pointer; }
.btn-warn:hover { opacity: .9; }

/* ============ 文字动态（M5.1）============ */
.view-moment .view-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.view-moment .filter-bar { display: flex; gap: 12px; align-items: center; }
.moment-list { display: flex; flex-direction: column; gap: 12px; }
.moment-card { background: #fff; border-radius: var(--radius-md); padding: 16px; box-shadow: 0 1px 3px rgba(0,0,0,0.06); }
.moment-card.status-已发布 { border-left: 4px solid var(--leya-green-600); }
.moment-card.status-已隐藏 { border-left: 4px solid var(--text-tertiary); }
.moment-card.status-已删除 { border-left: 4px solid var(--danger); opacity: .65; }
.moment-card .card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.moment-card .moment-title { font-size: var(--font-md); font-weight: 600; }
.moment-card .moment-title.text-muted { color: var(--text-tertiary); font-weight: normal; }
.moment-card .moment-content { color: var(--text-primary); line-height: 1.6; white-space: pre-wrap; word-break: break-word; }
.tag-已发布 { background: var(--leya-green-50); color: var(--leya-green-700); }
.tag-已隐藏 { background: #F5F5F5; color: var(--text-tertiary); }
.tag-已删除 { background: #FFEBEE; color: var(--danger); }
.moment-card .card-meta { font-size: var(--font-sm); color: var(--text-secondary); line-height: 1.8; margin-top: 8px; }
.moment-card .meta-label { color: var(--text-tertiary); margin-right: 4px; }

/* 发布弹窗 */
.modal-mask { position: fixed; inset: 0; background: rgba(0,0,0,0.45); display: flex; align-items: center; justify-content: center; z-index: 100; }
.modal-dialog { background: #fff; border-radius: var(--radius-md); width: min(92vw, 560px); max-height: 90vh; display: flex; flex-direction: column; }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--border-light); }
.modal-head h3 { margin: 0; font-size: var(--font-md); }
.modal-close { background: none; border: none; font-size: 24px; cursor: pointer; color: var(--text-tertiary); padding: 0; }
.modal-body { padding: 20px; overflow: auto; }
.modal-foot { padding: 12px 20px; border-top: 1px solid var(--border-light); display: flex; justify-content: flex-end; gap: 12px; }
.form-row { margin-bottom: 14px; }
.form-row label { display: block; margin-bottom: 6px; font-size: var(--font-sm); color: var(--text-secondary); }
.form-input { width: 100%; padding: 8px 12px; border: 1px solid var(--border-light); border-radius: var(--radius-sm); font-size: var(--font-sm); box-sizing: border-box; }
textarea.form-input { resize: vertical; }
.form-hint { font-size: 12px; color: var(--text-tertiary); margin-top: 4px; }
.biz-check-list { display: flex; flex-wrap: wrap; gap: 8px; }
.check-item { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border: 1px solid var(--border-light); border-radius: var(--radius-sm); cursor: pointer; font-size: var(--font-sm); }
.check-item input { margin: 0; }

/* 财务管理（M6.2） */
.finance-tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border-light); margin-bottom: 16px; }
.finance-tab { padding: 8px 16px; cursor: pointer; border: none; background: none; font-size: var(--font-md); color: var(--text-secondary); border-bottom: 2px solid transparent; }
.finance-tab.active { color: var(--leya-blue-600); border-bottom-color: var(--leya-blue-600); font-weight: 600; }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 20px; }
.stat-card { padding: 16px; background: #fff; border: 1px solid var(--border-light); border-radius: var(--radius-md); }
.stat-card .stat-label { font-size: var(--font-sm); color: var(--text-secondary); margin-bottom: 8px; }
.stat-card .stat-value { font-size: 24px; font-weight: 700; color: var(--text-primary); }
.stat-card.stat-receivable .stat-value { color: var(--leya-blue-600); }
.stat-card.stat-received .stat-value { color: var(--leya-green-600); }
.stat-card.stat-overdue .stat-value { color: var(--danger); }
.bill-card { padding: 12px 16px; background: #fff; border: 1px solid var(--border-light); border-radius: var(--radius-sm); margin-bottom: 8px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.bill-card.status-待缴 { border-left: 4px solid var(--leya-orange-600); }
.bill-card.status-已缴 { border-left: 4px solid var(--leya-green-600); }
.bill-card.status-逾期 { border-left: 4px solid var(--danger); }
.bill-card.status-已作废 { border-left: 4px solid var(--text-tertiary); opacity: .6; }
.bill-main { flex: 1; min-width: 240px; }
.bill-title { font-weight: 600; font-size: var(--font-md); }
.bill-meta { font-size: var(--font-sm); color: var(--text-secondary); margin-top: 4px; }
.bill-amount { font-size: 18px; font-weight: 700; color: var(--text-primary); }
.tag-待缴 { background: var(--leya-orange-50); color: var(--leya-orange-700); }
.tag-已缴 { background: var(--leya-green-50); color: var(--leya-green-700); }
.tag-逾期 { background: #FFEBEE; color: var(--danger); }
.tag-已作废 { background: #F5F5F5; color: var(--text-tertiary); }
.fee-item-card { padding: 10px 14px; background: #fff; border: 1px solid var(--border-light); border-radius: var(--radius-sm); margin-bottom: 6px; display: flex; justify-content: space-between; align-items: center; }
.fee-item-info { flex: 1; }
.fee-item-name { font-weight: 600; }
.fee-item-meta { font-size: var(--font-sm); color: var(--text-secondary); }
.fee-item-amount { font-weight: 700; color: var(--leya-blue-600); margin-left: 12px; }
.gen-bill-form { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.gen-bill-form .full { grid-column: span 2; }