:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1d2430;
  --muted: #6b7482;
  --line: #e3e6eb;
  --brand: #1a56db;
  --brand-dark: #1745b0;
  --ok: #13795b;
  --ok-bg: #e8f6f0;
  --err: #c0262d;
  --err-bg: #fdecec;
  --warn: #9a6200;
  --warn-bg: #fff6de;
  --info-bg: #eaf1fe;
  --radius: 10px;
}

* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 14px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--brand); text-decoration: none; }
h1 { font-size: 22px; margin: 0 0 4px; }
h2 { font-size: 16px; margin: 0 0 12px; }

.topbar {
  display: flex; align-items: center; gap: 24px; padding: 0 24px; height: 56px;
  background: #111827; color: #fff; position: sticky; top: 0; z-index: 10;
}
.brand { color: #fff; font-weight: 700; font-size: 16px; }
.brand span { color: #93b4ff; font-weight: 600; }
.topbar nav { display: flex; gap: 4px; flex: 1; }
.topbar nav a { color: #cbd2dc; padding: 8px 12px; border-radius: 8px; }
.topbar nav a:hover { color: #fff; background: #1f2937; }
.topbar nav a.active { color: #fff; background: #1f2937; }
.quota { font-size: 12px; color: #cbd2dc; display: flex; align-items: center; gap: 8px; white-space: nowrap; }
.quota-bar { width: 80px; height: 6px; background: #374151; border-radius: 3px; overflow: hidden; }
.quota-bar span { display: block; height: 100%; background: #34d399; }
.quota-high .quota-bar span { background: #f59e0b; }

main { max-width: 1400px; margin: 0 auto; padding: 24px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.strong { font-weight: 600; }
.mono { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; white-space: nowrap; }
.err { color: var(--err); }
.warn { color: var(--warn); }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; margin-bottom: 20px; }
.card-err { border-color: #f3c3c5; }
.page-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 16px; flex-wrap: wrap; }
.section-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.section-head h2 { margin: 0; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }
.actions form { margin: 0; }

.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; }
.flash-ok { background: var(--ok-bg); color: var(--ok); }
.flash-err { background: var(--err-bg); color: var(--err); }
.flash-info { background: var(--info-bg); color: #1e3a8a; }

label { display: block; font-weight: 600; margin-bottom: 6px; }
textarea, input {
  width: 100%; font: inherit; padding: 10px 12px; border: 1px solid #cfd5dd; border-radius: 8px; background: #fff;
}
textarea { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; resize: vertical; }
textarea:focus, input:focus { outline: 2px solid #bcd0fb; border-color: var(--brand); }
.hint { color: var(--muted); font-size: 13px; margin: 6px 0 16px; }

.topup-grid { display: grid; grid-template-columns: 1fr 300px; gap: 24px; }
@media (max-width: 800px) { .topup-grid { grid-template-columns: 1fr; } }
.limits { border-top: 1px solid var(--line); padding-top: 12px; margin-bottom: 16px; }
.limits div { display: flex; justify-content: space-between; padding: 4px 0; }
.limits span { color: var(--muted); }

.btn {
  display: inline-block; font: inherit; font-weight: 600; padding: 8px 14px; border-radius: 8px; cursor: pointer;
  border: 1px solid #cfd5dd; background: #fff; color: var(--text); white-space: nowrap;
}
.btn:hover { background: #f0f2f5; }
.btn-primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); }
.btn-primary:disabled { background: #9db4e8; border-color: #9db4e8; cursor: not-allowed; }
.btn-block { width: 100%; padding: 12px; }
.btn-small { padding: 2px 8px; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin-bottom: 20px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.stat span { display: block; color: var(--muted); font-size: 13px; }
.stat strong { font-size: 20px; }
.stat-ok strong { color: var(--ok); }
.stat-err strong { color: var(--err); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); font-weight: 600; white-space: nowrap; }
td.num, th.num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
tbody tr:hover { background: #fafbfc; }
tr.row-warn { background: var(--warn-bg); }
tr.row-warn:hover { background: #fff0c4; }
td form { margin: 0; }

.tag { display: inline-block; font-size: 11px; font-weight: 600; padding: 1px 6px; border-radius: 4px; background: #eef1f5; color: var(--muted); }
.tag-err { background: var(--err-bg); color: var(--err); }
.state { font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 10px; background: #eef1f5; color: var(--muted); white-space: nowrap; }
.state-active { background: var(--ok-bg); color: var(--ok); }
.state-ended, .state-error, .state-none, .state-unlimited { background: var(--err-bg); color: var(--err); }

.confirm-bar { display: flex; align-items: center; gap: 16px; margin-top: 16px; flex-wrap: wrap; }
.toolbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip { padding: 6px 12px; border-radius: 16px; background: #fff; border: 1px solid var(--line); color: var(--text); }
.chip b { color: var(--muted); font-weight: 600; margin-left: 4px; }
.chip.active { background: var(--brand); border-color: var(--brand); color: #fff; }
.chip.active b { color: #dbe6ff; }
.search { display: flex; gap: 6px; }
.search input { width: 240px; padding: 7px 10px; }
ul.plain { list-style: none; padding: 0; margin: 0; }
ul.plain li { padding: 3px 0; }
.visually-hidden { position: absolute; left: -9999px; width: 1px; height: 1px; }

tr.row-err { background: var(--err-bg); }
.state-exec-success { background: var(--ok-bg); color: var(--ok); }
.state-exec-pending { background: var(--warn-bg); color: var(--warn); }
.state-exec-failed, .state-exec-unknown, .state-exec-skipped { background: var(--err-bg); color: var(--err); }
.report {
  background: #0f172a; color: #e2e8f0; padding: 14px 16px; border-radius: 8px; margin: 0;
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; white-space: pre-wrap; line-height: 1.7;
}

.userbox { display: flex; align-items: center; gap: 8px; color: #cbd2dc; font-size: 13px; margin: 0; }
.login-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 20px; }
.login-card { width: 100%; max-width: 380px; margin: 0; }
.login-card h1 { font-size: 20px; }
.login-card input { margin-bottom: 14px; }
.login-card .btn { margin-top: 6px; }
.brand-accent { color: var(--brand); }
.settings-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; align-items: end; }
.settings-grid label { font-weight: 600; }
.settings-grid select { width: 100%; font: inherit; padding: 10px 12px; border: 1px solid #cfd5dd; border-radius: 8px; }
.settings-grid .full { grid-column: 1 / -1; }
.qr-row { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; }
.qr { max-width: 100%; background: #fff; border: 1px solid var(--line); border-radius: 8px;
      image-rendering: pixelated; }
.qr-help { flex: 1; min-width: 280px; }
.qr-help p { margin: 0 0 10px; }
.secret-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.secret { font-size: 15px; letter-spacing: 1px; padding: 6px 10px; }
code { background: #eef1f5; padding: 1px 5px; border-radius: 4px; font-size: 13px; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; } }
.chart-wrap { overflow-x: auto; margin-bottom: 16px; }
.chart { width: 100%; min-width: 560px; height: 260px; }
.chart-bar { fill: var(--brand); }
.chart-bar:hover { fill: var(--brand-dark); }
.chart-grid { stroke: var(--line); stroke-width: 1; }
.chart-axis { fill: var(--muted); font-size: 11px; }