/* ── Reset & Base (Dark Mode) ────────────────── */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; background: #0f1117; color: #e2e8f0; }
a { text-decoration: none; color: inherit; }
.hidden { display: none !important; }

/* ── Login ────────────────────────────────────── */
#login-page {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; background: linear-gradient(135deg, #0f1117 0%, #1e293b 100%);
}
.login-card {
  background: #1e2433; border-radius: 16px; padding: 48px; text-align: center;
  box-shadow: 0 20px 60px rgba(0,0,0,.5); min-width: 360px; border: 1px solid #2d3748;
}
.login-card h1 { font-size: 28px; color: #60a5fa; margin-bottom: 8px; }
.login-card p { color: #94a3b8; margin-bottom: 32px; }

/* ── Buttons ──────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px;
  border: none; border-radius: 6px; cursor: pointer; font-size: 14px; transition: .2s;
}
.btn-primary { background: #2563eb; color: #fff; }
.btn-primary:hover { background: #3b82f6; }
.btn-success { background: #16a34a; color: #fff; }
.btn-success:hover { background: #22c55e; }
.btn-danger { background: #dc2626; color: #fff; }
.btn-danger:hover { background: #ef4444; }
.btn-warning { background: #f59e0b; color: #000; }
.btn-warning:hover { background: #fbbf24; }
.btn-secondary { background: #475569; color: #fff; }
.btn-secondary:hover { background: #64748b; }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-lg { padding: 14px 32px; font-size: 16px; }

/* ── Layout ───────────────────────────────────── */
#admin-page { display: flex; min-height: 100vh; }

/* ── Sidebar ──────────────────────────────────── */
#sidebar {
  width: 240px; background: #111827; color: #fff; display: flex;
  flex-direction: column; position: fixed; top: 0; left: 0; bottom: 0; z-index: 100;
  border-right: 1px solid #1f2937;
}
.sidebar-header { padding: 20px; border-bottom: 1px solid #1f2937; }
.sidebar-header h2 { font-size: 18px; color: #60a5fa; }
#sidebar nav { flex: 1; padding: 12px 0; overflow-y: auto; }
.nav-link {
  display: flex; align-items: center; gap: 10px; padding: 12px 20px;
  color: rgba(255,255,255,.6); transition: .2s; font-size: 14px;
}
.nav-link:hover { background: rgba(255,255,255,.05); color: #fff; }
.nav-link.active { background: rgba(37,99,235,.3); color: #60a5fa; border-right: 3px solid #2563eb; }
.nav-link i { width: 20px; text-align: center; }
.sidebar-footer { padding: 16px 20px; border-top: 1px solid #1f2937; font-size: 13px; color: rgba(255,255,255,.4); }

/* ── Nav 分組（可折疊） ──────────────────────────────── */
.nav-group { display: flex; flex-direction: column; }
.nav-group-header {
  display: flex; align-items: center; gap: 10px; padding: 10px 20px;
  background: transparent; border: 0; cursor: pointer;
  color: rgba(255,255,255,.85); font-size: 13px; font-weight: 600;
  letter-spacing: .5px; text-align: left; width: 100%;
  font-family: inherit;
}
.nav-group-header:hover { background: rgba(255,255,255,.05); color: #fff; }
.nav-group-header > i:first-child { width: 20px; text-align: center; color: #60a5fa; }
.nav-chevron { margin-left: auto; font-size: 10px; transition: transform .2s; opacity: .6; }
.nav-group.collapsed .nav-chevron { transform: rotate(-90deg); }
.nav-group-items { display: flex; flex-direction: column; }
.nav-group.collapsed .nav-group-items { display: none; }
.nav-group .nav-link {
  padding: 8px 20px 8px 44px;   /* 內縮、讓子項目視覺從屬於分組 */
  font-size: 13px;
}
.nav-group .nav-link i { width: 16px; font-size: 12px; }

/* ── 巢狀子分組（如「財務報表」展開 9 個子項目）─── */
.nav-subgroup .nav-group-header {
  padding-left: 44px;            /* 跟父分組的子 nav-link 對齊 */
  font-size: 13px;
  color: rgba(255,255,255,.75);
  font-weight: 500;
}
.nav-subgroup .nav-group-header > i:first-child {
  width: 16px; font-size: 12px;
}
.nav-subgroup .nav-link {
  padding-left: 64px;            /* 再往內縮一層、視覺從屬於子分組 */
  font-size: 12.5px;
}

/* ── Main Content ─────────────────────────────── */
#main-content { margin-left: 240px; flex: 1; padding: 24px; min-height: 100vh; background: #0f1117; }
#page-header { margin-bottom: 24px; display: flex; justify-content: space-between; align-items: center; }
#page-header h1 { font-size: 24px; color: #e2e8f0; }

/* ── Stats Cards ──────────────────────────────── */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: #1e2433; border-radius: 12px; padding: 20px; border: 1px solid #2d3748;
  display: flex; align-items: center; gap: 16px;
}
.stat-card .icon { width: 48px; height: 48px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 20px; }
.stat-card .icon.blue { background: rgba(37,99,235,.2); color: #60a5fa; }
.stat-card .icon.green { background: rgba(22,163,74,.2); color: #4ade80; }
.stat-card .icon.orange { background: rgba(234,88,12,.2); color: #fb923c; }
.stat-card .icon.red { background: rgba(220,38,38,.2); color: #f87171; }
.stat-card .info h3 { font-size: 28px; color: #f1f5f9; }
.stat-card .info p { font-size: 13px; color: #94a3b8; }

/* ── Card / Panel ─────────────────────────────── */
.card { background: #1e2433; border-radius: 12px; padding: 20px; border: 1px solid #2d3748; margin-bottom: 16px; }
.card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.card-header h2 { font-size: 16px; color: #e2e8f0; }

/* ── Toolbar ──────────────────────────────────── */
.toolbar { display: flex; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; align-items: center; }
.toolbar input, .toolbar select {
  padding: 8px 12px; border: 1px solid #374151; border-radius: 6px; font-size: 14px;
  background: #111827; color: #e2e8f0;
}
.toolbar input { min-width: 200px; }

/* ── Batch toolbar (批次編輯列) ─────────────────── */
.batch-toolbar {
  display: flex; gap: 12px; align-items: center; margin-bottom: 12px;
  padding: 10px 14px; background: #1e293b; border: 1px solid #334155;
  border-radius: 6px; color: #e2e8f0;
}
.batch-toolbar strong { font-size: 16px; }

/* ── Table ────────────────────────────────────── */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th {
  background: #111827; padding: 10px 12px; text-align: left; font-size: 13px;
  color: #94a3b8; border-bottom: 2px solid #2d3748; white-space: nowrap;
}
.data-table td { padding: 10px 12px; border-bottom: 1px solid #1f2937; font-size: 14px; color: #e2e8f0; }
.data-table tr:hover td { background: rgba(255,255,255,.03); }
.data-table .actions { white-space: nowrap; display: flex; gap: 4px; }
/* 報表結果區：表格 footer 加總列 */
.data-table tfoot td {
  background: #0b1424; border-top: 2px solid #2d3748;
  font-weight: 700; color: #f1f5f9;
}

/* ── 報表頁面（左清單 + 右內容、鼎新格式） ─────── */
.report-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 16px;
  align-items: start;
}
.report-sub-nav {
  background: #1e2433;
  border: 1px solid #2d3748;
  border-radius: 12px;
  padding: 8px;
  position: sticky;
  top: 16px;
}
.report-sub-nav h3 {
  font-size: 12px; color: #94a3b8; margin: 8px 10px 6px;
  text-transform: uppercase; letter-spacing: .5px;
  font-weight: 600;
}
.report-sub-nav .sub-nav-divider {
  height: 1px; background: #2d3748; margin: 6px 8px;
}
.sub-nav-item {
  display: block; width: 100%; text-align: left;
  background: transparent; border: 0; cursor: pointer;
  color: rgba(255,255,255,.7); padding: 8px 12px;
  border-radius: 6px; font-size: 13px;
  font-family: inherit; transition: .15s;
  line-height: 1.4;
}
.sub-nav-item:hover { background: rgba(255,255,255,.05); color: #fff; }
.sub-nav-item.active {
  background: rgba(37,99,235,.25); color: #60a5fa;
  border-left: 2px solid #2563eb; padding-left: 10px;
}
.report-content { min-width: 0; /* prevent overflow on flex children */ }
@media (max-width: 900px) {
  .report-layout { grid-template-columns: 1fr; }
  .report-sub-nav { position: static; }
}

/* ── 報表結果區（所有 #rpt-* 結果 div）─────────── */
/* 1. 限高 + 內部滾動：撈出 200+ 筆也不會撐爆畫面
   2. 表頭 sticky：滾動時欄位標題固定在最上 */
[id^="rpt-"] {
  max-height: 65vh;
  overflow-y: auto;
  overflow-x: auto;
  border-radius: 6px;
}
[id^="rpt-"] .data-table thead th {
  position: sticky; top: 0; z-index: 2;
  /* background 已是 #111827、sticky 後仍會蓋住下層 */
}
[id^="rpt-"] .data-table tfoot td {
  position: sticky; bottom: 0;
}

/* ── Pagination ───────────────────────────────── */
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 16px; align-items: center; }
.pagination button { padding: 6px 14px; }
.pagination span { font-size: 14px; color: #94a3b8; }

/* ── Badge ────────────────────────────────────── */
.badge {
  display: inline-block; padding: 2px 10px; border-radius: 12px; font-size: 12px; font-weight: 500;
}
.badge-pending { background: rgba(251,191,36,.15); color: #fbbf24; }
.badge-confirmed { background: rgba(96,165,250,.15); color: #60a5fa; }
.badge-shipped, .badge-received { background: rgba(74,222,128,.15); color: #4ade80; }
.badge-completed { background: rgba(34,197,94,.15); color: #22c55e; }
.badge-cancelled { background: rgba(248,113,113,.15); color: #f87171; }

/* ── Modal ────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.7); display: flex;
  align-items: center; justify-content: center; z-index: 200;
}
.modal-card {
  background: #1e2433; border-radius: 12px; width: 90%; max-width: 600px;
  max-height: 85vh; display: flex; flex-direction: column; border: 1px solid #2d3748;
}
.modal-header {
  padding: 16px 20px; border-bottom: 1px solid #2d3748; display: flex;
  justify-content: space-between; align-items: center;
}
.modal-header h3 { font-size: 18px; color: #e2e8f0; }
.modal-header .close-btn { background: none; border: none; font-size: 20px; cursor: pointer; color: #94a3b8; }
.modal-header .close-btn:hover { color: #fff; }
.modal-body { padding: 20px; overflow-y: auto; flex: 1; }
.modal-footer { padding: 12px 20px; border-top: 1px solid #2d3748; display: flex; justify-content: flex-end; gap: 8px; }

/* ── Form ─────────────────────────────────────── */
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; color: #94a3b8; margin-bottom: 4px; font-weight: 500; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 8px 12px; border: 1px solid #374151; border-radius: 6px; font-size: 14px;
  background: #111827; color: #e2e8f0;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: #2563eb; box-shadow: 0 0 0 2px rgba(37,99,235,.3);
}
.form-group textarea { resize: vertical; min-height: 60px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

/* ── Toast ────────────────────────────────────── */
#toast-container { position: fixed; top: 20px; right: 20px; z-index: 300; display: flex; flex-direction: column; gap: 8px; }
.toast {
  padding: 12px 20px; border-radius: 8px; color: #fff; font-size: 14px;
  animation: slideIn .3s ease; min-width: 250px; box-shadow: 0 4px 12px rgba(0,0,0,.4);
}
.toast-success { background: #16a34a; }
.toast-error { background: #dc2626; }
.toast-info { background: #2563eb; }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ── Order Items Table ────────────────────────── */
.items-table { width: 100%; border-collapse: collapse; margin-top: 12px; }
.items-table th { background: #111827; padding: 8px; font-size: 13px; text-align: left; color: #94a3b8; }
.items-table td { padding: 6px 8px; }
.items-table input, .items-table select {
  width: 100%; padding: 6px 8px; border: 1px solid #374151; border-radius: 4px; font-size: 13px;
  background: #111827; color: #e2e8f0;
}
.items-table .remove-row { color: #f87171; cursor: pointer; border: none; background: none; font-size: 16px; }

/* ── Empty State ──────────────────────────────── */
.empty-state { text-align: center; padding: 48px; color: #64748b; }
.empty-state i { font-size: 48px; margin-bottom: 12px; }

/* ── Section Headers in Forms ────────────────── */
h4 { color: #94a3b8; }

/* ── Checkbox styling ────────────────────────── */
input[type="checkbox"] { accent-color: #2563eb; }

/* ── Scrollbar ───────────────────────────────── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #111827; }
::-webkit-scrollbar-thumb { background: #374151; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #4b5563; }

/* ── Responsive ───────────────────────────────── */
@media (max-width: 768px) {
  #sidebar { width: 60px; }
  .sidebar-header h2, .nav-link span, .sidebar-footer { display: none; }
  .nav-link { justify-content: center; padding: 14px; }
  #main-content { margin-left: 60px; padding: 16px; }
  .form-row { grid-template-columns: 1fr; }
}

/* ── Print（列印） ────────────────────────────── */
.print-only { display: none; }
@media print {
  body, #main-content, .card, .data-table th, .data-table td {
    background: #fff !important; color: #000 !important;
  }
  #sidebar, #page-header, .no-print, .pagination, .actions, .toolbar, .card-header, .report-sub-nav {
    display: none !important;
  }
  #main-content { margin-left: 0 !important; padding: 0 !important; }
  .card { border: none !important; box-shadow: none !important; padding: 0 !important; margin: 0 !important; }
  .print-only { display: block; }
  .data-table { font-size: 12px; }
  .data-table th { border-bottom: 1px solid #000 !important; }
  .data-table td { border-bottom: 1px solid #ccc !important; }
  .badge { background: transparent !important; color: #000 !important; border: 1px solid #000; padding: 1px 6px; }
  @page { size: A4 landscape; margin: 1cm; }
}