/* ═══════════════════════════════════════════
   ShopFlow - 完整设计系统
   修复: 表格样式直接作用于元素，不依赖额外 class
   ═══════════════════════════════════════════ */

:root {
  --bg: #f8fafc;
  --bg-card: #ffffff;
  --bg-side: #0c1222;
  --bg-hover: #f1f5f9;
  --bg-code: #f8fafc;
  --text-1: #0f172a;
  --text-2: #475569;
  --text-3: #94a3b8;
  --text-inv: #f1f5f9;
  --text-side: #8b9dc3;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --primary: #4f46e5;
  --primary-bg: #eef2ff;
  --primary-hov: #4338ca;
  --success: #059669;
  --success-bg: #ecfdf5;
  --warning: #d97706;
  --warning-bg: #fffbeb;
  --danger: #dc2626;
  --danger-bg: #fef2f2;
  --info: #2563eb;
  --info-bg: #eff6ff;
  --r-sm: 6px; --r-md: 8px; --r-lg: 12px; --r-xl: 16px;
  --sh-sm: 0 1px 2px rgba(0,0,0,.05);
  --sh-md: 0 4px 6px -1px rgba(0,0,0,.07), 0 2px 4px -2px rgba(0,0,0,.05);
  --sh-lg: 0 10px 15px -3px rgba(0,0,0,.08);
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --mono: 'SF Mono', 'Fira Code', Consolas, monospace;
  --side-w: 232px;
}

/* Reset */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 14px; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font); background: var(--bg); color: var(--text-1); line-height: 1.55; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: inherit; }
img { max-width: 100%; }

/* ── Layout ────────────────────────────────── */
.app { display: flex; min-height: 100vh; }
.main { flex: 1; margin-left: var(--side-w); display: flex; flex-direction: column; min-height: 100vh; }

/* ── Sidebar ───────────────────────────────── */
.sidebar {
  position: fixed; top: 0; left: 0; bottom: 0;
  width: var(--side-w); background: var(--bg-side);
  display: flex; flex-direction: column; z-index: 100;
}
.side-brand {
  padding: 18px 16px 14px;
  display: flex; align-items: center; gap: 10px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.side-logo {
  width: 30px; height: 30px; border-radius: 8px;
  background: var(--primary); display: flex;
  align-items: center; justify-content: center; flex-shrink: 0;
}
.side-logo svg { width: 15px; height: 15px; fill: none; stroke: #fff; stroke-width: 2; }
.side-brand-name { font-size: 14px; font-weight: 700; color: var(--text-inv); letter-spacing: -.01em; }

.side-nav { flex: 1; overflow-y: auto; padding: 6px 8px; }
.side-nav::-webkit-scrollbar { width: 0; }
.nav-section {
  font-size: 10px; font-weight: 700; text-transform: uppercase;
  letter-spacing: .1em; color: #3b4d6b; padding: 14px 10px 5px;
}
.nav-item {
  display: flex; align-items: center; gap: 9px;
  padding: 7px 10px; border-radius: 7px;
  color: var(--text-side); font-size: 13px; font-weight: 500;
  margin-bottom: 1px; transition: all .12s;
}
.nav-item:hover { background: rgba(255,255,255,.06); color: var(--text-inv); }
.nav-item.active { background: var(--primary); color: #fff; }
.nav-item svg { width: 16px; height: 16px; opacity: .6; flex-shrink: 0; }
.nav-item.active svg { opacity: 1; }

.side-footer { padding: 10px 8px; border-top: 1px solid rgba(255,255,255,.06); }
.side-logout {
  display: flex; align-items: center; gap: 9px; width: 100%;
  padding: 7px 10px; border: none; border-radius: 7px;
  background: none; color: var(--text-side); font-size: 13px; cursor: pointer;
}
.side-logout:hover { background: rgba(255,255,255,.06); color: #f87171; }
.side-logout svg { width: 16px; height: 16px; }

/* ── Topbar ────────────────────────────────── */
.topbar {
  background: var(--bg-card); border-bottom: 1px solid var(--border);
  padding: 0 24px; height: 52px;
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 50;
}
.topbar h1 { font-size: 15px; font-weight: 600; }
.topbar-actions { display: flex; gap: 8px; align-items: center; }

/* ── Content ───────────────────────────────── */
.content { flex: 1; padding: 24px; }

/* ── Cards ─────────────────────────────────── */
.card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--r-lg); overflow: hidden;
}
.card + .card { margin-top: 16px; }
.card-head {
  padding: 14px 20px; display: flex; align-items: center;
  justify-content: space-between; border-bottom: 1px solid var(--border-light);
}
.card-head h3 { font-size: 13px; font-weight: 600; }
.card-body { padding: 20px; }

/* ── Stats ─────────────────────────────────── */
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 14px; margin-bottom: 18px;
}
.stat-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 18px;
}
.stat-label {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: .06em; color: var(--text-3); margin-bottom: 6px;
}
.stat-value { font-size: 26px; font-weight: 700; line-height: 1.1; letter-spacing: -.02em; }
.stat-sub { font-size: 11px; color: var(--text-3); margin-top: 4px; }

/* ── TABLE: 全局样式，不依赖 class ────────── */
.table-wrap { overflow-x: auto; }
table {
  width: 100%; border-collapse: collapse;
  table-layout: auto;
}
thead th {
  padding: 9px 16px; font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .06em; color: var(--text-3);
  text-align: left; border-bottom: 1px solid var(--border);
  white-space: nowrap; background: var(--bg);
}
tbody td {
  padding: 10px 16px; font-size: 13px; color: var(--text-1);
  border-bottom: 1px solid var(--border-light); vertical-align: middle;
}
tbody tr { transition: background .1s; }
tbody tr:hover { background: var(--bg-hover); }
tbody tr:last-child td { border-bottom: none; }

/* ── Badges ────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center;
  padding: 2px 8px; border-radius: 999px;
  font-size: 11px; font-weight: 600;
}
.badge-ok      { background: var(--success-bg); color: var(--success); }
.badge-danger  { background: var(--danger-bg); color: var(--danger); }
.badge-warn    { background: var(--warning-bg); color: var(--warning); }
.badge-info    { background: var(--info-bg); color: var(--info); }
.badge-gray    { background: var(--bg-hover); color: var(--text-2); }
.badge-primary { background: var(--primary-bg); color: var(--primary); }

/* ── Buttons ───────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 6px 13px; border-radius: var(--r-md);
  font-size: 12.5px; font-weight: 600; border: none;
  transition: all .12s; white-space: nowrap;
}
.btn:active { transform: scale(.97); }
.btn-primary   { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hov); }
.btn-secondary { background: var(--bg-hover); color: var(--text-1); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--border); }
.btn-danger    { background: var(--danger-bg); color: var(--danger); }
.btn-danger:hover { background: #fee2e2; }
.btn-sm        { padding: 4px 9px; font-size: 11.5px; }
.btn.loading   { opacity: .65; pointer-events: none; }
.btn.loading::after {
  content: ''; width: 12px; height: 12px;
  border: 2px solid rgba(255,255,255,.3); border-top-color: #fff;
  border-radius: 50%; animation: spin .6s linear infinite;
  display: inline-block; margin-left: 3px;
}

/* ── Forms ─────────────────────────────────── */
.form-group { margin-bottom: 14px; }
.form-group label {
  display: block; font-size: 12px; font-weight: 600;
  color: var(--text-1); margin-bottom: 4px;
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 7px 11px; border: 1px solid var(--border);
  border-radius: var(--r-md); font-size: 13px; background: var(--bg-card);
  transition: border-color .15s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-bg);
}
.form-group .hint { font-size: 11px; color: var(--text-3); margin-top: 3px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.form-check { display: flex; align-items: center; gap: 7px; }
.form-check input[type="checkbox"] { width: 15px; height: 15px; accent-color: var(--primary); }

/* ── Modal ─────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,.4); display: flex;
  align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity .15s;
}
.modal-overlay.show { opacity: 1; pointer-events: auto; }
.modal {
  background: var(--bg-card); border-radius: var(--r-xl);
  width: 92%; max-width: 540px; max-height: 85vh;
  overflow-y: auto; transform: translateY(8px);
  transition: transform .15s; box-shadow: var(--sh-lg);
}
.modal-overlay.show .modal { transform: translateY(0); }
.modal-head {
  padding: 16px 20px 12px; display: flex; align-items: center;
  justify-content: space-between; border-bottom: 1px solid var(--border-light);
}
.modal-head h3 { font-size: 14px; font-weight: 700; }
.modal-close {
  width: 26px; height: 26px; display: flex; align-items: center;
  justify-content: center; border: none; background: none;
  border-radius: 6px; color: var(--text-3); cursor: pointer; font-size: 16px;
}
.modal-close:hover { background: var(--bg-hover); color: var(--text-1); }
.modal-body { padding: 18px 20px; }
.modal-foot {
  padding: 12px 20px 16px; display: flex;
  justify-content: flex-end; gap: 6px;
  border-top: 1px solid var(--border-light);
}

/* ── Toast ─────────────────────────────────── */
.toast-box {
  position: fixed; top: 16px; right: 16px;
  z-index: 300; display: flex; flex-direction: column; gap: 6px;
}
.toast {
  padding: 9px 15px; border-radius: var(--r-md);
  font-size: 12.5px; font-weight: 600; box-shadow: var(--sh-lg);
  animation: slideIn .2s ease;
  display: flex; align-items: center; gap: 7px; min-width: 200px;
}
.toast-success { background: var(--success-bg); color: var(--success); border: 1px solid #bbf7d0; }
.toast-error   { background: var(--danger-bg); color: var(--danger); border: 1px solid #fecaca; }
@keyframes slideIn { from { transform: translateX(20px); opacity:0; } to { transform: translateX(0); opacity:1; } }

/* ── Toggle ────────────────────────────────── */
.toggle {
  width: 32px; height: 18px; border-radius: 10px;
  background: var(--border); cursor: pointer;
  position: relative; transition: background .15s; border: none;
}
.toggle.on { background: var(--primary); }
.toggle::after {
  content: ''; position: absolute; width: 14px; height: 14px;
  background: #fff; border-radius: 50%; top: 2px; left: 2px;
  transition: transform .15s; box-shadow: var(--sh-sm);
}
.toggle.on::after { transform: translateX(14px); }

/* ── Filter Bar ────────────────────────────── */
.filter-bar {
  display: flex; gap: 7px; margin-bottom: 14px;
  flex-wrap: wrap; align-items: center;
}
.filter-bar select, .filter-bar input {
  padding: 5px 9px; border: 1px solid var(--border);
  border-radius: 7px; font-size: 12px; background: var(--bg-card);
}
.filter-bar select:focus, .filter-bar input:focus {
  outline: none; border-color: var(--primary);
}

/* ── Group Cards ───────────────────────────── */
.groups-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 14px;
}
.group-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 18px; transition: box-shadow .15s;
}
.group-card:hover { box-shadow: var(--sh-md); }
.group-card-head {
  display: flex; justify-content: space-between;
  align-items: flex-start; margin-bottom: 10px;
}
.group-card h4 { font-size: 13px; font-weight: 700; }
.group-code {
  display: inline-block; background: var(--bg-hover); color: var(--text-2);
  padding: 1px 7px; border-radius: 5px; font-size: 10px;
  font-family: var(--mono); cursor: pointer;
}
.group-code:hover { background: var(--border); }
.group-stats { display: flex; gap: 18px; margin: 10px 0; }
.group-stat {
  font-size: 10px; color: var(--text-3);
  text-transform: uppercase; letter-spacing: .05em; font-weight: 700;
}
.group-stat strong {
  display: block; font-size: 17px; color: var(--text-1);
  font-weight: 700; text-transform: none; letter-spacing: 0;
}
.group-url {
  background: var(--bg-code); border: 1px dashed var(--border);
  border-radius: 7px; padding: 7px 11px;
  font-family: var(--mono); font-size: 10px; color: var(--text-2);
  cursor: pointer; word-break: break-all;
}
.group-url:hover { background: var(--primary-bg); border-color: var(--primary); color: var(--primary); }
.group-actions { display: flex; gap: 5px; margin-top: 10px; flex-wrap: wrap; }
.group-actions .btn { flex-shrink: 0; }

/* ── Bar Chart ─────────────────────────────── */
.bar-chart { display: flex; align-items: flex-end; gap: 5px; height: 100px; }
.bar-col { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 3px; }
.bar {
  width: 100%; background: var(--primary-bg); border-radius: 3px 3px 0 0;
  min-height: 3px;
}
.bar.active { background: var(--primary); }
.bar-label { font-size: 9px; color: var(--text-3); font-weight: 600; }

/* ── Utility ───────────────────────────────── */
.text-muted   { color: var(--text-3); }
.text-sm      { font-size: 12px; }
.text-truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 220px; }
.flex     { display: flex; align-items: center; }
.gap-2    { gap: 7px; }
.mt-2     { margin-top: 7px; }
.hint     { font-size: 11px; color: var(--text-3); margin-top: 3px; }
.empty    { text-align: center; padding: 36px 16px; color: var(--text-3); font-size: 13px; }

/* ── Loading ───────────────────────────────── */
.loading, .page-loading {
  display: flex; align-items: center; justify-content: center;
  padding: 36px; color: var(--text-3); font-size: 13px;
}
.spinner {
  width: 20px; height: 20px; border: 2.5px solid var(--border);
  border-top-color: var(--primary); border-radius: 50%;
  animation: spin .7s linear infinite; margin-right: 8px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Responsive ────────────────────────────── */
@media (max-width: 1024px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) {
  .sidebar { display: none; }
  .main { margin-left: 0; }
  .form-row { grid-template-columns: 1fr; }
}