:root {
  --primary: #1e3a8a;
  --primary-hover: #172554;
  --primary-light: #eff6ff;
  --accent: #0284c7;
  --success: #16a34a;
  --success-bg: #dcfce7;
  --warning: #d97706;
  --warning-bg: #fef3c7;
  --danger: #dc2626;
  --danger-bg: #fee2e2;
  --bg: #f8fafc;
  --sidebar-bg: #0f172a;
  --sidebar-text: #94a3b8;
  --sidebar-hover: #1e293b;
  --sidebar-active: #3b82f6;
  --card-bg: #ffffff;
  --text: #0f172a;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --border-focus: #3b82f6;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.03);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Microsoft JhengHei", "PingFang TC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* 側邊導航列 */
.sidebar {
  width: 250px;
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  border-right: 1px solid #1e293b;
  user-select: none;
}

.sidebar-header {
  padding: 1.25rem 1.25rem 1rem;
  border-bottom: 1px solid #1e293b;
}

.brand-title {
  color: #f8fafc;
  font-size: 1.15rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-subtitle {
  font-size: 0.75rem;
  color: #64748b;
  margin-top: 0.2rem;
}

.nav-list {
  list-style: none;
  padding: 0.75rem 0.5rem;
  flex: 1;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  margin-bottom: 0.25rem;
  border-radius: var(--radius);
  color: var(--sidebar-text);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.nav-item:hover {
  background: var(--sidebar-hover);
  color: #f8fafc;
}

.nav-item.active {
  background: var(--sidebar-active);
  color: #ffffff;
}

.nav-item .icon {
  font-size: 1.1rem;
  width: 1.25rem;
  text-align: center;
}

.nav-group .icon {
  font-size: 1.1rem;
  width: 1.25rem;
  text-align: center;
}

.nav-group-head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.55rem 0.85rem;
  margin-bottom: 0.15rem;
  border-radius: var(--radius);
  color: #cbd5e1;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  cursor: pointer;
  user-select: none;
  transition: all 0.15s ease;
}

.nav-group-head:hover {
  background: var(--sidebar-hover);
  color: #f8fafc;
}

.nav-caret {
  margin-left: auto;
  font-size: 0.7rem;
  transition: transform 0.15s ease;
}

.nav-group.open .nav-caret {
  transform: rotate(180deg);
}

.nav-sublist {
  list-style: none;
  margin: 0 0 0.25rem 0;
  padding: 0 0 0 0.6rem;
  display: none;
}

.nav-group.open > .nav-sublist {
  display: block;
}

.nav-sublist .nav-item {
  font-size: 0.85rem;
  padding: 0.5rem 0.7rem;
}

.nav-group-head .icon {
  font-size: 1.05rem;
  width: 1.25rem;
  text-align: center;
}

.sidebar-footer {
  padding: 1rem;
  border-top: 1px solid #1e293b;
  font-size: 0.78rem;
  color: #64748b;
  text-align: center;
}

/* 主視圖區域 */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg);
}

.top-bar {
  background: #ffffff;
  height: 60px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  flex-shrink: 0;
}

.page-title-area {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.page-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.content-body {
  flex: 1;
  padding: 1.5rem;
  overflow-y: auto;
}

/* 卡片與網格 */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-top: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 1.2rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}

.stat-card .label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 0.4rem;
}

.stat-card .value {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text);
}

.stat-card .sub-value {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
}

/* 資料區塊 Card */
.panel {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
  overflow: hidden;
}

.panel-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: linear-gradient(180deg, #ffffff 0%, #f6f9fd 100%);
  border-left: 4px solid var(--primary);
}

.panel-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.panel-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* 表格樣式 */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

table.data-table, table.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  text-align: left;
}

table.data-table th, table.table th {
  background: linear-gradient(180deg, #1e3a8a 0%, #1e40af 100%);
  color: #ffffff;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 0.7rem 1rem;
  border-bottom: 2px solid var(--accent);
  white-space: nowrap;
  text-shadow: 0 1px 1px rgba(0,0,0,0.15);
}

table.data-table td, table.table td {
  padding: 0.7rem 1rem;
  border-bottom: 1px solid #eef2f7;
  color: var(--text);
}

table.data-table tbody tr:nth-child(even), table.table tbody tr:nth-child(even) {
  background: #f6f9fd;
}

table.data-table tr:last-child td, table.table tr:last-child td {
  border-bottom: none;
}

table.data-table tbody tr:hover, table.table tbody tr:hover {
  background: var(--primary-light);
  box-shadow: inset 3px 0 0 var(--accent);
}

/* 按鈕按鍵 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--primary-hover);
}

.btn-outline {
  background: #ffffff;
  border-color: var(--border);
  color: var(--text);
}

.btn-outline:hover {
  background: #f1f5f9;
}

.btn-success {
  background: var(--success);
  color: #ffffff;
}

.btn-success:hover {
  background: #15803d;
}

.btn-danger {
  background: var(--danger);
  color: #ffffff;
}

.btn-danger:hover {
  background: #b91c1c;
}

.btn-sm {
  padding: 0.25rem 0.6rem;
  font-size: 0.78rem;
}

/* 狀態徽章 Badges */
.badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-align: center;
}

.badge-open {
  background: #e0f2fe;
  color: #0369a1;
}

.badge-completed {
  background: #fef3c7;
  color: #b45309;
}

.badge-closed {
  background: #dcfce7;
  color: #15803d;
}

.badge-effective {
  background: #dcfce7;
  color: #15803d;
}

.badge-void {
  background: #fee2e2;
  color: #b91c1c;
}

.badge-partial {
  background: #fef3c7;
  color: #b45309;
}

.badge-settled {
  background: #dcfce7;
  color: #15803d;
}

.badge-active {
  background: #dcfce7;
  color: #15803d;
}

.badge-inactive {
  background: #e5e7eb;
  color: #4b5563;
}

/* 表單與控制項 */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.35rem;
}

.form-control {
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-size: 0.88rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  outline: none;
  background: #ffffff;
  color: var(--text);
  transition: border-color 0.15s ease;
}

.form-control:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

/* 可打字下拉 (combobox)：單一欄位，select 隱藏只留 value，input + 浮出面板 */
.select-search-wrap {
  position: relative;
}
.select-search-wrap > select {
  display: none;
}
.select-search-new {
  color: var(--primary);
  font-weight: 600;
  background: var(--accent-bg, #f0f7ff);
}

.select-search-panel {
  display: none;
  position: fixed; /* fixed + JS 依輸入框 rect 定位：不被 .panel overflow:hidden / modal 等祖先裁切 */
  max-height: 240px;
  overflow-y: auto;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: var(--shadow-lg);
  z-index: 3000;
}
.select-search-item {
  padding: 0.4rem 0.75rem;
  font-size: 0.85rem;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.select-search-item:hover,
.select-search-item.hl {
  background: #eff6ff;
}
.select-search-item.active {
  color: var(--primary);
  font-weight: 600;
}
.select-search-item.placeholder {
  color: #94a3b8;
  font-size: 0.8rem;
}
.select-search-empty {
  padding: 0.5rem 0.75rem;
  font-size: 0.82rem;
  color: #94a3b8;
}

.form-row {
  display: flex;
  gap: 1rem;
}

.form-row .form-group {
  flex: 1;
}

/* 彈出視窗 Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(2px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
}

.modal-overlay.show {
  display: flex;
}

.modal-dialog {
  background: #ffffff;
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 720px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: modalIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-dialog.modal-lg {
  max-width: 960px;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.modal-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--text-muted);
  cursor: pointer;
}

.modal-close:hover {
  color: var(--text);
}

.modal-body {
  padding: 1.25rem;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  background: #f8fafc;
}

/* 動態明細行表格 */
.line-items-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.5rem;
  margin-bottom: 1rem;
}

.line-items-table th, .line-items-table td {
  padding: 0.5rem;
  border: 1px solid var(--border);
}

.line-items-table th {
  background: linear-gradient(180deg, #1e3a8a 0%, #1e40af 100%);
  color: #ffffff;
  font-size: 0.8rem;
  font-weight: 700;
  border: 1px solid #1e3a8a;
}
.line-items-table td {
  background: #ffffff;
}
.line-items-table tbody tr:nth-child(even) td {
  background: #f6f9fd;
}

/* Toast 提示 */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  padding: 0.75rem 1.25rem;
  border-radius: 6px;
  font-size: 0.88rem;
  box-shadow: var(--shadow-lg);
  color: #fff;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.25s ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toast-success { background: #16a34a; }
.toast-error { background: #dc2626; }
.toast-info { background: #0284c7; }

/* ===== 使用者登入機制 ===== */
.auth-overlay {
  position: fixed; inset: 0; z-index: 5000;
  background: rgba(15, 23, 42, 0.62);
  display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(2px);
}
.auth-card {
  background: var(--card, #fff); border-radius: 12px;
  padding: 1.6rem 1.8rem; width: min(380px, 92vw);
  box-shadow: 0 18px 50px rgba(0,0,0,0.35);
}
.auth-title { font-size: 1.15rem; font-weight: 700; text-align: center; margin-bottom: 1rem; color: var(--text, #1e293b); }
.auth-tabs { display: flex; gap: 0.5rem; margin-bottom: 1rem; }
.auth-tabs .btn { flex: 1; }
.auth-submit { width: 100%; margin-top: 0.4rem; }
.auth-sso-hint { margin-top: 1rem; font-size: 0.78rem; color: var(--text-muted, #64748b); line-height: 1.5; border-top: 1px solid var(--border, #e2e8f0); padding-top: 0.8rem; }
#userbar-name strong { font-weight: 700; }
.badge-role-admin { background: #7c3aed; }
.user-mgr-tabs { display: flex; gap: 0.5rem; margin-bottom: 1rem; }


/* ============================================================
   ext view 共用樣式（ext_orders / ext_returns / ext_loan / ext_counts / ext_finance / ext_reports）
   目標：與 panel / data-table 視覺一致
   ============================================================ */

/* 頁首列：等同 .panel-header 的排版 */
.page-header, .view-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 0.9rem 1.25rem;
  margin-bottom: 1.25rem;
}

.page-header h2, .view-header h2 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
}

.header-actions, .panel-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
}

/* 卡片容器：與 .panel 同款 */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 1.25rem;
  overflow: hidden;
}

.card-body {
  padding: 1rem 1.25rem;
}

/* 表格內縮 padding（table.table 已併入 data-table 規則） */
.panel > .table-responsive, .card > .table-responsive {
  width: 100%;
  overflow-x: auto;
}
table.table-sm th, table.table-sm td { padding: 0.45rem 0.6rem; }

/* 狀態/提示 */
.empty-state, .loading {
  text-align: center;
  color: var(--text-muted);
  padding: 2.5rem 1rem;
  font-size: 0.9rem;
  background: var(--card-bg);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  margin-bottom: 1.25rem;
}

.error {
  background: var(--danger-bg);
  color: #b91c1c;
  border: 1px solid #fecaca;
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  margin-bottom: 1.25rem;
  font-size: 0.88rem;
}

.alert {
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  margin-bottom: 1.25rem;
  font-size: 0.88rem;
}
.alert-danger {
  background: var(--danger-bg);
  color: #b91c1c;
  border: 1px solid #fecaca;
}

.info-box {
  background: var(--primary-light, #eff6ff);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.6rem 0.85rem;
  font-size: 0.85rem;
  color: var(--text);
  margin: 0.75rem 0;
}

/* 表單格線（ext_returns / ext_counts 用） */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.9rem 1rem;
  margin-bottom: 0.9rem;
}

.form-field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.35rem;
}

.form-field input, .form-field select, .form-field textarea {
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-size: 0.88rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  outline: none;
  background: #ffffff;
  color: var(--text);
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-control, .form-input, .form-select, .form-label {
  box-sizing: border-box;
}
.form-input, .form-select {
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-size: 0.88rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  outline: none;
  background: #ffffff;
  color: var(--text);
}
.form-input:focus, .form-select:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}
.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.35rem;
}

.form-actions {
  display: flex;
  gap: 0.6rem;
  margin-top: 1rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--border);
}

.totals-row {
  display: flex;
  justify-content: flex-end;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-size: 0.9rem;
  color: var(--text-muted);
  padding: 0.75rem 1rem;
  background: #eaf1fb;
  border-top: 2px solid var(--primary);
}
.totals-row strong { color: var(--primary); font-size: 1rem; }

/* 補齊 ext 用的 badge 色系（沿用既有色票） */
.badge-secondary { background: #e2e8f0; color: #475569; }
.badge-warning, .badge-warn { background: var(--warning-bg); color: #b45309; }
.badge-success { background: var(--success-bg); color: #15803d; }
.badge-danger, .badge-cancelled { background: var(--danger-bg); color: #b91c1c; }

/* ext_loan 自建 modal（.modal 當 overlay、.modal-content 當對話框）— 對齊既有 .modal-dialog 視覺 */
.modal {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(2px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
}
.modal.show { display: flex; }
.modal-content {
  background: #ffffff;
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 720px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: modalIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}
/* --- 第三大塊：應收／應付互抵對照（純顯示層） --- */
.offset-group {
  border: 2px solid var(--danger);          /* 紅圈：同一來往單位的互抵群組 */
  border-radius: var(--radius);
  background: #fff;                          /* 白底讓紅框在斑馬紋表格上可辨識 */
  padding: 0.75rem 1rem 1rem;
  margin-bottom: 1rem;
}
.offset-group-title { font-weight: 700; color: var(--danger); margin-bottom: 0.5rem; }
td.offset-net-cell {                         /* Excel 式跨列合併儲存格 */
  vertical-align: middle; text-align: center; font-size: 1.05rem;
  background: var(--danger-bg) !important;   /* 蓋過斑馬紋 nth-child(even) 的背景 */
  border-left: 3px double var(--danger);
  min-width: 140px;
}