:root {
  --bg: #f6f7fb;
  --surface: #ffffff;
  --border: #e6e8ef;
  --text: #111827;
  --muted: #6b7280;
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --primary-soft: #eef2ff;
  --ok: #16a34a;
  --warn: #d97706;
  --danger: #dc2626;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(16,24,40,.04), 0 6px 20px rgba(16,24,40,.05);
  --sidebar-w: 232px;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang HK", "Microsoft JhengHei", Arial, sans-serif;
  font-size: 14px; line-height: 1.55;
}
a { color: inherit; text-decoration: none; }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.admin { display: flex; min-height: 100vh; }

/* sidebar */
.sidebar {
  width: var(--sidebar-w); flex: 0 0 var(--sidebar-w); background: #fff; border-right: 1px solid var(--border);
  display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh;
}
.sidebar .brand { display: flex; align-items: center; gap: 9px; padding: 18px 18px; font-weight: 700; font-size: 15px; border-bottom: 1px solid var(--border); }
.brand-mark {
  width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center; flex: none;
  background: linear-gradient(135deg,#6366f1,#4f46e5); color: #fff; font-weight: 800; font-size: 15px;
}
.sidebar nav { padding: 12px 10px; flex: 1; overflow-y: auto; }
.sidebar nav a {
  display: flex; align-items: center; gap: 10px; padding: 9px 11px; border-radius: 9px;
  color: var(--muted); font-size: 13.5px; margin-bottom: 2px; position: relative;
}
.sidebar nav a svg { width: 17px; height: 17px; fill: currentColor; flex: none; }
.sidebar nav a:hover { background: #f3f4f6; color: var(--text); }
.sidebar nav a.on { background: var(--primary-soft); color: var(--primary); font-weight: 600; }
.nav-badge {
  position: absolute; right: 10px; background: var(--danger); color: #fff; border-radius: 9px;
  font-size: 10.5px; padding: 1px 6px; font-style: normal; font-weight: 700;
}
.sidebar-foot { border-top: 1px solid var(--border); padding: 12px 16px; display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); }

/* main */
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  height: 60px; background: #fff; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between; padding: 0 26px; position: sticky; top: 0; z-index: 20;
}
.topbar h1 { margin: 0; font-size: 17px; font-weight: 700; }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.content { padding: 24px 26px 60px; }

/* cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 16px; margin-bottom: 22px; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.stat .label { font-size: 12.5px; color: var(--muted); margin-bottom: 8px; }
.stat .value { font-size: 25px; font-weight: 700; letter-spacing: -.02em; }
.stat .delta { font-size: 12px; margin-top: 6px; }
.delta.up { color: var(--ok); }
.delta.down { color: var(--danger); }

.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.panel-head { padding: 15px 18px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.panel-head h2, .panel-head h3 { margin: 0; font-size: 14.5px; font-weight: 700; }
.panel-body { padding: 18px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.mb { margin-bottom: 18px; }

/* table */
table.table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.table th {
  text-align: left; font-size: 11.5px; text-transform: uppercase; letter-spacing: .04em;
  color: var(--muted); padding: 10px 14px; border-bottom: 1px solid var(--border); background: #fafbfc; font-weight: 600;
}
table.table td { padding: 11px 14px; border-bottom: 1px solid #f0f1f5; vertical-align: middle; }
table.table tbody tr:last-child td { border-bottom: 0; }
table.table tbody tr:hover { background: #fafbff; }
.table-wrap { overflow-x: auto; }

/* badges */
.badge { display: inline-block; padding: 3px 9px; border-radius: 20px; font-size: 11.5px; font-weight: 600; }
.badge.ok { background: #ecfdf5; color: #047857; }
.badge.info { background: #eff6ff; color: #1d4ed8; }
.badge.warn { background: #fffbeb; color: #b45309; }
.badge.danger { background: #fef2f2; color: #b91c1c; }
.badge.primary { background: var(--primary-soft); color: var(--primary); }
.badge.muted { background: #f3f4f6; color: #6b7280; }

/* forms */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 8px 15px; border-radius: 9px; border: 1px solid transparent; background: var(--primary);
  color: #fff; font-size: 13.5px; font-weight: 600; cursor: pointer; font-family: inherit; transition: .15s;
}
.btn:hover { background: var(--primary-dark); }
.btn-sm { padding: 5px 11px; font-size: 12.5px; }
.btn-xs { padding: 3px 8px; font-size: 11.5px; }
.btn-ghost { background: #fff; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { background: #f3f4f6; }
.btn-danger { background: var(--danger); }
.btn-danger:hover { background: #b91c1c; }
.btn-block { width: 100%; }
.btn-group { display: flex; gap: 8px; flex-wrap: wrap; }
.input, select.input, textarea.input {
  width: 100%; padding: 8px 11px; border: 1px solid var(--border); border-radius: 9px;
  font-size: 13.5px; font-family: inherit; background: #fff; color: var(--text);
}
.input:focus { outline: 2px solid var(--primary-soft); border-color: var(--primary); }
textarea.input { min-height: 90px; line-height: 1.6; }
.field { margin-bottom: 14px; }
.field > label { display: block; font-size: 12.5px; font-weight: 600; margin-bottom: 5px; }
.hint { font-size: 12px; color: var(--muted); margin-top: 4px; }
.row { display: grid; gap: 14px; }
.row.cols-2 { grid-template-columns: 1fr 1fr; }
.row.cols-3 { grid-template-columns: repeat(3, 1fr); }
.row.cols-4 { grid-template-columns: repeat(4, 1fr); }

.alert { padding: 10px 14px; border-radius: 9px; font-size: 13.5px; margin-bottom: 14px; }
.alert-success { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.alert-error, .alert-danger { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.alert-info { background: var(--primary-soft); color: #3730a3; border: 1px solid #c7d2fe; }

.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 16px; }
.toolbar .input { width: auto; }
.toolbar form { display: flex; gap: 8px; align-items: center; }

.empty { text-align: center; padding: 50px 20px; color: var(--muted); }
.empty h3 { color: var(--text); margin: 0 0 6px; font-size: 15px; }

/* chart */
.chart { display: flex; align-items: flex-end; gap: 10px; height: 190px; padding: 10px 0 0; }
.chart .bar-wrap { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 7px; height: 100%; justify-content: flex-end; }
.chart .bar { width: 100%; max-width: 46px; background: linear-gradient(180deg,#818cf8,#4f46e5); border-radius: 6px 6px 0 0; min-height: 3px; }
.chart .bar-label { font-size: 11px; color: var(--muted); }
.chart .bar-value { font-size: 11px; font-weight: 600; }

.pagination { display: flex; gap: 5px; margin-top: 16px; justify-content: center; }
.pagination a { padding: 5px 11px; border-radius: 8px; border: 1px solid var(--border); background: #fff; font-size: 12.5px; }
.pagination a.active { background: var(--primary); color: #fff; border-color: var(--primary); }

.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.login-box { width: 100%; max-width: 380px; background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 30px; box-shadow: var(--shadow); }
.login-box h1 { margin: 16px 0 4px; font-size: 20px; }
.login-box p.muted { margin: 0 0 20px; font-size: 13px; }

@media (max-width: 900px) {
  .grid-2, .grid-3, .row.cols-3, .row.cols-4 { grid-template-columns: 1fr; }
  .sidebar { width: 62px; flex-basis: 62px; }
  .sidebar .brand-name, .sidebar nav a span, .sidebar-foot { display: none; }
  .content { padding: 18px; }
}

/* ===== 多語言 / 規格 / 主題 ===== */
.tr-box { border: 1px solid var(--border); border-radius: 10px; padding: 12px; margin-bottom: 10px; background: var(--bg-soft); }
.tr-title { font-weight: 600; font-size: 13px; margin-bottom: 10px; }
.variant-rows { display: flex; flex-direction: column; gap: 8px; }
.variant-row { display: grid; grid-template-columns: 2fr 1.2fr 1fr 1fr; gap: 8px; }
@media (max-width: 900px) { .variant-row { grid-template-columns: 1fr 1fr; } }