:root {
  --bg: #0f1117; --side: #161923; --panel: #1b1f2b; --panel2: #222736;
  --line: #2a3040; --text: #e6e9f0; --muted: #8b93a7; --accent: #7c6cff;
  --accent2: #4dd0e1; --ok: #35c78a; --bad: #ff6b6b; --warn: #ffb454;
  --radius: 12px;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font: 14px/1.5 -apple-system, "PingFang SC", "Segoe UI", Roboto, sans-serif;
  background: var(--bg); color: var(--text);
}
a { color: inherit; text-decoration: none; }

/* Layout */
.app { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.side { background: var(--side); border-right: 1px solid var(--line); padding: 20px 14px; display: flex; flex-direction: column; }
.brand { font-weight: 700; font-size: 18px; letter-spacing: .5px; color: #fff; padding: 4px 8px 18px; }
.brand.big { font-size: 26px; padding: 0; }
.side nav { display: flex; flex-direction: column; gap: 4px; }
.side nav a { padding: 10px 12px; border-radius: 10px; color: var(--muted); }
.side nav a:hover { background: var(--panel); color: var(--text); }
.side nav a.on { background: linear-gradient(90deg, rgba(124,108,255,.25), rgba(124,108,255,.05)); color: #fff; }
.logout { margin-top: auto; }
.logout button { width: 100%; background: transparent; color: var(--muted); border: 1px solid var(--line); border-radius: 10px; padding: 9px; cursor: pointer; }
.logout button:hover { color: var(--text); border-color: var(--muted); }

.main { display: flex; flex-direction: column; }
.topbar { padding: 22px 28px 6px; }
.topbar h1 { margin: 0; font-size: 20px; }
.content { padding: 16px 28px 40px; }

/* KPI cards */
.kpis { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px,1fr)); gap: 14px; margin-bottom: 20px; }
.kpi { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.kpi .n { font-size: 30px; font-weight: 700; }
.kpi .n.accent { color: var(--accent2); }
.kpi .l { color: var(--muted); margin-top: 4px; }

/* Panels */
.cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px,1fr)); gap: 16px; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; margin-bottom: 16px; }
.panel h2 { margin: 0 0 14px; font-size: 15px; color: #fff; }
.panel-head { display: flex; align-items: center; justify-content: space-between; }
.big-num { font-size: 34px; font-weight: 700; margin: 6px 0; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12.5px; }

/* Tables */
table { width: 100%; border-collapse: collapse; }
.grid-table th, .grid-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.grid-table th { color: var(--muted); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: .4px; }
.grid-table tr:hover td { background: rgba(255,255,255,.02); }
table.mini th, table.mini td { padding: 6px 8px; border-bottom: 1px solid var(--line); }

/* Badges */
.badge { display: inline-block; padding: 2px 9px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.badge.free { background: #2a3040; color: var(--muted); }
.badge.plus { background: rgba(124,108,255,.2); color: #b7adff; }
.badge.pro { background: rgba(77,208,225,.18); color: var(--accent2); }
.badge.active { background: rgba(53,199,138,.18); color: var(--ok); }
.badge.canceled { background: rgba(139,147,167,.18); color: var(--muted); }
.badge.refunded { background: rgba(255,107,107,.16); color: var(--bad); }

/* Buttons & forms */
button, .btn { font: inherit; cursor: pointer; border-radius: 9px; border: 1px solid var(--line); background: var(--panel2); color: var(--text); padding: 8px 14px; }
button:hover, .btn:hover { border-color: var(--muted); }
.btn.sm { padding: 5px 10px; font-size: 13px; }
.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.primary:hover { filter: brightness(1.08); }
.danger { color: var(--bad); border-color: rgba(255,107,107,.4); background: transparent; }
.link { background: none; border: none; padding: 0; color: var(--accent2); }
.link.danger { color: var(--bad); }
label { display: block; margin-bottom: 12px; color: var(--muted); font-size: 13px; }
input, select { width: 100%; margin-top: 5px; padding: 9px 11px; background: var(--bg); border: 1px solid var(--line); border-radius: 9px; color: var(--text); font: inherit; }
input:focus, select:focus { outline: none; border-color: var(--accent); }
.stack label { margin-bottom: 14px; }
.row3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
.inline { display: flex; gap: 8px; }
.inline input { width: auto; margin: 0; }

/* Toolbar / pager / tabs */
.toolbar { display: flex; gap: 10px; align-items: center; margin-bottom: 16px; }
.toolbar input { width: 320px; margin: 0; }
.pager { display: flex; gap: 12px; align-items: center; margin-top: 16px; }
.tabs { display: flex; gap: 6px; margin-bottom: 16px; }
.tabs a { padding: 7px 14px; border-radius: 20px; color: var(--muted); border: 1px solid var(--line); }
.tabs a.on { background: var(--accent); border-color: var(--accent); color: #fff; }

/* Detail */
.back { color: var(--muted); display: inline-block; margin-bottom: 14px; }
.kv { display: grid; grid-template-columns: 120px 1fr; gap: 8px 12px; margin: 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }

/* Notices */
.ok { background: rgba(53,199,138,.14); color: var(--ok); border: 1px solid rgba(53,199,138,.3); padding: 10px 14px; border-radius: 10px; margin-bottom: 16px; }
.err { background: rgba(255,107,107,.14); color: var(--bad); border: 1px solid rgba(255,107,107,.3); padding: 10px 14px; border-radius: 10px; margin-bottom: 14px; }
.empty { background: var(--panel); border: 1px dashed var(--line); border-radius: var(--radius); padding: 24px; text-align: center; color: var(--muted); margin-top: 20px; }
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; vertical-align: middle; }
.dot.ok { background: var(--ok); } .dot.bad { background: var(--bad); }

/* Login */
.login { min-height: 100vh; display: grid; place-items: center; }
.login-card { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 34px 36px; width: 320px; }
.login-card .sub { color: var(--muted); margin: 2px 0 20px; }
.login-card .primary { width: 100%; margin-top: 6px; }

/* ---- Metrics dashboard ---- */
h2.sec { font-size: 13px; text-transform: uppercase; letter-spacing: .6px; color: var(--muted); margin: 26px 0 12px; font-weight: 600; }
h2.sec:first-child { margin-top: 4px; }
.kpi .hint { color: var(--muted); font-size: 12px; margin-top: 4px; }
.kpi .delta { font-size: 12px; margin-top: 5px; color: var(--muted); }
.kpi .delta.up { color: #0ca30c; }     /* status: good */
.kpi .delta.down { color: #d03b3b; }   /* status: critical */

/* Charts: SVG scales to the card; container grows to include the axis band */
.chart { width: 100%; height: auto; display: block; }
.chart rect[fill="transparent"] { cursor: crosshair; }

/* Legend — identity is never color-alone (swatch + text token) */
.legend { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 12px; }
.legend .lg { display: inline-flex; align-items: center; gap: 7px; color: var(--muted); font-size: 12.5px; }
.legend .lg i { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }

/* Table-view twin */
.tableview { margin-top: 14px; }
.tableview summary { color: var(--muted); font-size: 12.5px; cursor: pointer; }
.tableview summary:hover { color: var(--text); }
table.scroll { display: block; max-height: 260px; overflow-y: auto; margin-top: 10px; }
table.mini td, table.mini th { font-variant-numeric: tabular-nums; }
code { background: var(--bg); padding: 1px 6px; border-radius: 5px; font-size: 12.5px; }
.panel h2 .sub { font-weight: 400; font-size: 12px; color: var(--muted); margin-left: 6px; }