:root {
  --bg: #f6f7fb;
  --panel: #ffffff;
  --panel-2: #f1f3f9;
  --text: #121726;
  --muted: #5d6680;
  --line: #e3e6ef;
  --brand: #5b4cf0;
  --brand-2: #0fb5d8;
  --ok: #12a46b;
  --warn: #c98a06;
  --bad: #d23f4f;
  --side: #0d1220;
  --side-text: #c4cbe0;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 1px 3px rgba(16, 24, 40, 0.08);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0e19;
    --panel: #111727;
    --panel-2: #161d31;
    --text: #e8ebf5;
    --muted: #8f98b3;
    --line: #222a42;
    --side: #070a13;
    --shadow: none;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
code, .mono { font-family: "JetBrains Mono", Consolas, monospace; font-size: 12.5px; }

/* Shell */
.shell { display: grid; grid-template-columns: 236px 1fr; min-height: 100vh; }
.side { background: var(--side); color: var(--side-text); padding: 18px 12px; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.brand { display: flex; align-items: center; gap: 10px; padding: 6px 10px 18px; color: #fff; font-weight: 700; }
.brand .logo { width: 32px; height: 32px; border-radius: 9px; background: linear-gradient(135deg, #151d3d, #0b1022); border: 1px solid rgba(139, 123, 255, .55); display: grid; place-items: center; flex: none; }
.brand small { display: block; color: var(--side-text); font-weight: 500; font-size: 11px; opacity: .75; }
.nav a { display: flex; align-items: center; gap: 10px; color: var(--side-text); padding: 8px 10px; border-radius: 8px; margin: 1px 0; font-weight: 500; }
.nav a:hover { background: rgba(255,255,255,.06); text-decoration: none; color: #fff; }
.nav a.active { background: rgba(91, 76, 240, .22); color: #fff; }
.nav .sep { margin: 14px 10px 6px; font-size: 11px; text-transform: uppercase; letter-spacing: .08em; opacity: .5; }
.nav svg { width: 17px; height: 17px; flex: none; opacity: .9; }
.side-foot { margin-top: 20px; padding: 10px; font-size: 12px; opacity: .7; }
.side-foot a { color: var(--side-text); }
.main { padding: 26px 32px 60px; min-width: 0; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.topbar h1 { margin: 0; font-size: 22px; letter-spacing: -.01em; }
.topbar .sub { color: var(--muted); margin-top: 2px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.btn.menu-btn { display: none; }

/* Panels & grids */
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px; }
.card + .card { margin-top: 16px; }
.grid > .card + .card, .grid > form.card + .card, .grid > .card + form.card { margin-top: 0; }
.card h2 { margin: 0 0 12px; font-size: 15px; }
.card h2 .muted { font-weight: 500; }
.grid { display: grid; gap: 16px; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.span2 { grid-column: span 2; }
.kpi .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }
.kpi .value { font-size: 26px; font-weight: 700; margin-top: 4px; letter-spacing: -.02em; }
.kpi .hint { color: var(--muted); font-size: 12px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.between { justify-content: space-between; }
.stack > * + * { margin-top: 10px; }

/* Tables */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { font-size: 11.5px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); font-weight: 600; background: var(--panel-2); }
tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tbody tr:hover { background: color-mix(in srgb, var(--panel-2) 60%, transparent); }

/* Badges */
.badge { display: inline-flex; align-items: center; gap: 5px; padding: 2px 8px; border-radius: 999px; font-size: 11.5px; font-weight: 600; background: var(--panel-2); color: var(--muted); border: 1px solid var(--line); white-space: nowrap; }
.badge.ok { color: var(--ok); background: color-mix(in srgb, var(--ok) 12%, transparent); border-color: transparent; }
.badge.warn { color: var(--warn); background: color-mix(in srgb, var(--warn) 14%, transparent); border-color: transparent; }
.badge.bad { color: var(--bad); background: color-mix(in srgb, var(--bad) 12%, transparent); border-color: transparent; }
.badge.brand { color: var(--brand); background: color-mix(in srgb, var(--brand) 12%, transparent); border-color: transparent; }

/* Fill bar */
.bar { height: 6px; background: var(--panel-2); border-radius: 99px; overflow: hidden; min-width: 80px; }
.bar > span { display: block; height: 100%; background: linear-gradient(90deg, var(--brand), var(--brand-2)); }

/* Forms */
label { display: block; font-weight: 600; font-size: 12.5px; margin-bottom: 5px; }
label .muted { font-weight: 400; }
input[type=text], input[type=email], input[type=number], input[type=url], input[type=password], input[type=datetime-local], input[type=search], select, textarea {
  width: 100%; padding: 9px 11px; border: 1px solid var(--line); border-radius: 9px; background: var(--panel); color: var(--text); font: inherit;
}
textarea { min-height: 90px; resize: vertical; }
textarea.tall { min-height: 160px; }
input:focus, select:focus, textarea:focus { outline: 2px solid color-mix(in srgb, var(--brand) 40%, transparent); border-color: var(--brand); }
.field { margin-bottom: 14px; }
.help { color: var(--muted); font-size: 12px; margin-top: 4px; }
.check { display: flex; align-items: center; gap: 8px; font-weight: 500; }
.btn { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--line); background: var(--panel); color: var(--text); padding: 8px 14px; border-radius: 9px; font: inherit; font-weight: 600; cursor: pointer; text-decoration: none !important; white-space: nowrap; }
.btn:hover { border-color: var(--brand); }
.btn.primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--bad); }
.btn.danger:hover { border-color: var(--bad); }
.btn.sm { padding: 4px 9px; font-size: 12.5px; border-radius: 7px; }
form.inline { display: inline; }
.toolbar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 14px; }
.toolbar input[type=search] { max-width: 280px; }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 16px; }
.tabs a { padding: 8px 12px; color: var(--muted); font-weight: 600; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs a.active { color: var(--text); border-color: var(--brand); text-decoration: none; }

/* Flash */
.flash { padding: 11px 14px; border-radius: 10px; margin-bottom: 16px; font-weight: 500; }
.flash.ok { background: color-mix(in srgb, var(--ok) 12%, transparent); color: var(--ok); }
.flash.err { background: color-mix(in srgb, var(--bad) 12%, transparent); color: var(--bad); }

.empty { text-align: center; padding: 34px 10px; color: var(--muted); }
details.more summary { cursor: pointer; color: var(--brand); font-weight: 600; margin: 6px 0; }
.kv { display: grid; grid-template-columns: 130px 1fr; gap: 6px 12px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }

/* Login */
.login { min-height: 100vh; display: grid; place-items: center; padding: 20px; background: radial-gradient(1200px 600px at 20% 0%, rgba(91,76,240,.25), transparent), radial-gradient(900px 500px at 100% 100%, rgba(15,181,216,.18), transparent), var(--side); }
.login .card { width: 100%; max-width: 380px; }

@media (max-width: 960px) {
  .g3, .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .shell { grid-template-columns: 1fr; }
  .side { position: fixed; inset: 0 auto 0 0; width: 260px; z-index: 20; transform: translateX(-100%); transition: transform .2s; }
  body.nav-open .side { transform: none; box-shadow: 0 0 0 100vmax rgba(0,0,0,.45); }
  .btn.menu-btn { display: inline-flex; }
  .main { padding: 18px 16px 50px; }
  .g2, .g3, .g4 { grid-template-columns: 1fr; }
  .span2 { grid-column: auto; }
  .kv { grid-template-columns: 1fr; }
}