:root {
  --primary: #2c5af0;
  --primary-light: rgba(44, 90, 240, 0.1);
  --bg: #f5f6fa;
  --card: #fff;
  --text: #323233;
  --muted: #969799;
  --line: #ebedf0;
  --danger: #ee0a24;
  --success: #07c160;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}
a { color: var(--primary); text-decoration: none; }
button, input, select { font: inherit; }

.shell { display: flex; min-height: 100vh; }
.side {
  width: 220px; flex-shrink: 0; background: #fff;
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column; padding: 20px 14px;
}
.brand { display: flex; gap: 10px; align-items: center; margin-bottom: 24px; }
.brand-logo { width: 40px; height: 40px; border-radius: 12px; object-fit: cover; background: #f5f6fa; }
.brand-name { font-weight: 700; font-size: 15px; }
.login-logo { width: 64px; height: 64px; border-radius: 16px; object-fit: cover; display: block; margin: 0 auto 12px; }
.side-link {
  display: block; padding: 10px 12px; border-radius: 10px; color: var(--text); font-size: 14px;
}
.side-link.active { background: var(--primary-light); color: var(--primary); font-weight: 600; }
.side-foot { margin-top: auto; font-size: 13px; color: var(--muted); }
.side-user { margin-bottom: 6px; color: var(--text); }
.main { flex: 1; padding: 20px 24px 40px; min-width: 0; }

.page-title { font-size: 20px; font-weight: 700; margin: 0 0 6px; }
.page-desc { margin: 0 0 16px; color: var(--muted); font-size: 13px; }

.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-bottom: 12px; }
.card {
  background: var(--card); border-radius: 12px; padding: 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}
.stat-label { font-size: 13px; color: var(--muted); }
.stat-num { margin-top: 8px; font-size: 24px; font-weight: 700; }
.stat-num.money { color: var(--success); }
.stat-num.warn { color: #ed6a0c; }

.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }
.tabs { display: flex; gap: 8px; flex-wrap: wrap; }
.tab {
  border: 1px solid var(--line); background: #fff; border-radius: 999px;
  padding: 6px 14px; font-size: 13px; color: var(--text); cursor: pointer;
}
.tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.search {
  margin-left: auto; display: flex; gap: 8px;
}
.search input {
  width: 240px; height: 36px; border: 1px solid var(--line); border-radius: 8px; padding: 0 12px;
}
.btn {
  height: 36px; padding: 0 14px; border-radius: 8px; border: none; cursor: pointer;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-plain { background: #fff; color: var(--text); border: 1px solid var(--line); }
.btn-success { background: var(--success); color: #fff; }
.btn:disabled, .btn.disabled { opacity: 0.45; cursor: not-allowed; pointer-events: none; }
.btn-sm { height: 28px; padding: 0 10px; font-size: 12px; border-radius: 6px; }

.table-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 12px 10px; text-align: left; border-bottom: 1px solid #f2f3f5; white-space: nowrap; }
th { color: var(--muted); font-weight: 500; background: #fafafa; }
.tag {
  display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px;
}
.tag-wait { background: #fff7e8; color: #ed6a0c; }
.tag-paid { background: #e8f8ef; color: var(--success); }
.tag-role { background: var(--primary-light); color: var(--primary); }
.amount { font-weight: 700; }
.user-sub { color: var(--muted); font-size: 12px; }

.pager { display: flex; justify-content: space-between; align-items: center; margin-top: 14px; color: var(--muted); font-size: 13px; }
.pager-actions { display: flex; gap: 8px; align-items: center; }
.pager-size { display: inline-flex; align-items: center; gap: 6px; }
.pager-size select { height: 36px; border: 1px solid var(--line); border-radius: 8px; padding: 0 8px; background: #fff; }
.login-card h1 { text-align: center; }
.empty { text-align: center; color: var(--muted); padding: 36px 0; }

.flash { margin-bottom: 12px; padding: 10px 12px; border-radius: 8px; font-size: 13px; }
.flash.ok { background: #e8f8ef; color: #078d46; }
.flash.err { background: #ffecee; color: var(--danger); }

.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; }
.login-card { width: 380px; max-width: 100%; }
.login-card h1 { margin: 0 0 6px; font-size: 22px; }
.login-card p { margin: 0 0 18px; color: var(--muted); font-size: 13px; }
.field { margin-bottom: 12px; }
.field label { display: block; margin-bottom: 6px; font-size: 13px; color: #646566; }
.field input { width: 100%; height: 40px; border: 1px solid var(--line); border-radius: 8px; padding: 0 12px; }
.login-card .btn { width: 100%; height: 40px; }

@media (max-width: 900px) {
  .shell { display: block; }
  .side { width: auto; border-right: none; border-bottom: 1px solid var(--line); }
  .side-foot { margin-top: 12px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .search { margin-left: 0; width: 100%; }
  .search input { flex: 1; width: auto; }
}