:root {
  color-scheme: dark;
  --bg: #020617;
  --panel: #0f172a;
  --panel-2: #111c33;
  --line: #1e293b;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --ok: #22c55e;
  --warn: #f59e0b;
  --bad: #ef4444;
  --none: #64748b;
  --radius: 10px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.5 var(--font); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
h1 { font-size: 1.5rem; margin: 0 0 .25rem; display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; }
h2 { font-size: 1.05rem; margin: 0 0 .75rem; display: flex; align-items: center; gap: .5rem; }
small { display: block; font-size: .78rem; color: var(--muted); }
.muted { color: var(--muted); }
.mono { font-family: var(--mono); font-size: .88em; }
.nowrap { white-space: nowrap; }
.i { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex: none; }

.top { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 1.5rem; padding: .6rem 1.5rem;
  background: rgba(2, 6, 23, .92); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: .5rem; color: var(--text); font-weight: 600; }
.brand small { display: inline; margin-left: .25rem; }
.top nav { display: flex; gap: .25rem; flex-wrap: wrap; flex: 1; }
.top nav a, .who a { display: flex; align-items: center; gap: .4rem; padding: .4rem .7rem; border-radius: 8px; color: var(--muted); }
.top nav a:hover, .who a:hover { color: var(--text); background: var(--panel); text-decoration: none; }
.top a[aria-current="page"] { color: var(--text); background: var(--panel); box-shadow: inset 0 -2px 0 var(--accent); }
.who { display: flex; align-items: center; gap: .5rem; }
.who form { margin: 0; }

.page { max-width: 1400px; margin: 0 auto; padding: 1.5rem; display: flex; flex-direction: column; gap: 1rem; }
.auth { min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 1.5rem; gap: 1rem; }
.head p { margin: .25rem 0 0; }
.crumbs { margin: 0 0 .25rem; color: var(--muted); font-size: .85rem; }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem 1.25rem; }
.card > :last-child { margin-bottom: 0; }
.warn-card { border-color: rgba(245, 158, 11, .45); background: linear-gradient(0deg, rgba(245, 158, 11, .06), rgba(245, 158, 11, .06)), var(--panel); }
.auth-card { width: 100%; max-width: 380px; }
.auth-card.wide { max-width: 620px; }
.narrow { max-width: 480px; }
.more { margin-left: auto; font-size: .85rem; font-weight: 400; }
.plain { list-style: none; padding: 0; margin: 0; display: grid; gap: .35rem; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1rem; }
.kv { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: .9rem; }
.kv span { display: block; color: var(--muted); font-size: .8rem; }

.notice { padding: .7rem 1rem; border-radius: var(--radius); border: 1px solid; width: 100%; }
.auth .notice { max-width: 380px; }
.notice.ok { border-color: rgba(34, 197, 94, .5); background: rgba(34, 197, 94, .08); }
.notice.bad { border-color: rgba(239, 68, 68, .5); background: rgba(239, 68, 68, .08); }
.notice.warn { border-color: rgba(245, 158, 11, .5); background: rgba(245, 158, 11, .08); }
.inline-form { display: flex; gap: .6rem; align-items: center; flex-wrap: wrap; margin-bottom: .9rem; }
.actions { display: flex; gap: .75rem; align-items: flex-start; flex-wrap: wrap; margin-top: .6rem; }

.strip { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: .75rem; }
.stat { background: var(--panel); border: 1px solid var(--line); border-left: 4px solid var(--none); border-radius: var(--radius); padding: .7rem 1rem; }
.stat b { display: block; font-size: 1.35rem; font-variant-numeric: tabular-nums; }
.stat span { color: var(--muted); font-size: .85rem; }
.stat.st-ok { border-left-color: var(--ok); }
.stat.st-warn { border-left-color: var(--warn); }
.stat.st-bad { border-left-color: var(--bad); }

.chip { display: inline-block; padding: .1rem .55rem; border-radius: 999px; font-size: .8rem; font-weight: 600; border: 1px solid; white-space: nowrap; }
.st-ok.chip { color: var(--ok); border-color: rgba(34, 197, 94, .5); background: rgba(34, 197, 94, .1); }
.st-warn.chip { color: var(--warn); border-color: rgba(245, 158, 11, .5); background: rgba(245, 158, 11, .1); }
.st-bad.chip { color: var(--bad); border-color: rgba(239, 68, 68, .5); background: rgba(239, 68, 68, .1); }
.st-none.chip { color: var(--muted); border-color: var(--line); background: transparent; }
.tag { font-size: .75rem; padding: .05rem .45rem; border-radius: 6px; border: 1px solid rgba(245, 158, 11, .5); color: var(--warn); }

.out, .mini { font-family: var(--mono); font-size: .78rem; }
.mini { display: inline-block; padding: .05rem .4rem; border-radius: 5px; border: 1px solid var(--line); color: var(--muted); white-space: nowrap; }
.out-ok { color: var(--ok); }
.out-warn { color: var(--warn); }
.out-bad { color: var(--bad); }
.out-none { color: var(--none); }
.mini.out-ok { border-color: rgba(34, 197, 94, .45); background: rgba(34, 197, 94, .08); }
.mini.out-warn { border-color: rgba(245, 158, 11, .45); background: rgba(245, 158, 11, .08); }
.mini.out-bad { border-color: rgba(239, 68, 68, .45); background: rgba(239, 68, 68, .08); }
.checks { display: flex; gap: .25rem; flex-wrap: wrap; }
.legend { display: flex; gap: .5rem; align-items: center; flex-wrap: wrap; color: var(--muted); font-size: .85rem; }

.scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th, td { text-align: left; padding: .55rem .6rem; border-bottom: 1px solid var(--line); vertical-align: top; }
thead th { color: var(--muted); font-weight: 500; font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; white-space: nowrap; }
tbody tr:hover { background: var(--panel-2); }
tbody th { font-weight: 600; }
.matrix .net { text-transform: none; letter-spacing: 0; color: var(--text); font-weight: 600; }
.matrix .cell { min-width: 150px; }
.reason { max-width: 340px; margin-top: .2rem; }

form { margin: 0; }
.stack { display: flex; flex-direction: column; gap: .5rem; }
.stack button { margin-top: .5rem; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: .9rem; align-items: start; }
.form-grid fieldset { grid-column: 1 / -1; }
.form-grid > button, .form-grid > label.check { margin-top: 1.55rem; }
.form-grid > fieldset + button { margin-top: 0; justify-self: start; }
.confirm summary { list-style: none; cursor: pointer; color: var(--bad); padding: .4rem .7rem; border: 1px solid var(--line); border-radius: 8px; display: inline-block; }
.confirm summary::-webkit-details-marker { display: none; }
.confirm[open] summary { color: var(--muted); }
.confirm form { margin-top: .4rem; }
.confirm button { min-height: 34px; padding: .35rem .8rem; }
.filters { display: flex; gap: .9rem; flex-wrap: wrap; align-items: end; }
label { display: flex; flex-direction: column; gap: .3rem; font-size: .85rem; color: var(--muted); }
label.check { flex-direction: row; align-items: center; gap: .5rem; color: var(--text); font-size: .9rem; cursor: pointer; }
fieldset { border: 1px solid var(--line); border-radius: var(--radius); padding: .6rem .9rem; display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; margin: 0; }
legend { color: var(--muted); font-size: .85rem; padding: 0 .3rem; }
input, select { font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: .5rem .65rem; min-height: 40px; }
input[type="checkbox"] { min-height: 0; width: 16px; height: 16px; accent-color: var(--accent); }
input:focus-visible, select:focus-visible { border-color: var(--accent); }
input.code { font-family: var(--mono); font-size: 1.4rem; letter-spacing: .3em; text-align: center; }

button, .button { font: inherit; font-weight: 600; cursor: pointer; border-radius: 8px; padding: .55rem 1rem; min-height: 40px;
  border: 1px solid var(--accent); background: var(--accent); color: #020617; display: inline-flex; align-items: center; gap: .4rem; justify-content: center; }
button:hover, .button:hover { filter: brightness(1.1); text-decoration: none; }
button.ghost { background: transparent; color: var(--muted); border-color: var(--line); }
button.ghost:hover { color: var(--text); }
button.danger { background: var(--bad); border-color: var(--bad); color: #fff; }
.head form { margin-top: .75rem; }
button.danger-text { color: var(--bad); }

.enroll { display: flex; gap: 1.25rem; align-items: flex-start; flex-wrap: wrap; margin: 1rem 0; }
.qr { width: 240px; height: 240px; image-rendering: pixelated; border-radius: 8px; background: #fff; }
.secret { display: block; font-family: var(--mono); padding: .6rem .8rem; border-radius: 8px; background: var(--bg); border: 1px solid var(--line);
  word-break: break-all; user-select: all; }
.enroll .secret { flex: 1 1 260px; }

@media (max-width: 720px) {
  .top { padding: .6rem 1rem; gap: .5rem; }
  .page { padding: 1rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}

/* economics */
.periods { display: flex; gap: .35rem; margin-top: .6rem; }
.periods a { padding: .25rem .65rem; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: .85rem; }
.periods a[aria-current="page"] { color: var(--text); border-color: var(--accent); }
td.num { font-variant-numeric: tabular-nums; white-space: nowrap; }
.bad { color: var(--bad); }
svg.bar { display: block; width: 160px; height: 8px; border-radius: 4px; overflow: hidden; margin: .2rem 0; }
.bar-bg { fill: var(--line); }
.bar-fill { fill: var(--ok); }
.bar-over { fill: var(--bad); }
.bar-alert { stroke: var(--warn); stroke-width: 1.5; vector-effect: non-scaling-stroke; }
svg.spark { display: block; width: 120px; height: 28px; }
.spark-line { fill: none; stroke: var(--accent); stroke-width: 1.5; vector-effect: non-scaling-stroke; stroke-linejoin: round; }
.spark-alert { stroke: var(--warn); stroke-width: 1; stroke-dasharray: 3 3; vector-effect: non-scaling-stroke; }

.cohorts td { text-align: center; min-width: 56px; }
.heat-0 { color: var(--muted); }
.heat-1 { background: rgba(34, 197, 94, .08); }
.heat-2 { background: rgba(34, 197, 94, .18); }
.heat-3 { background: rgba(34, 197, 94, .3); }
.heat-4 { background: rgba(34, 197, 94, .45); }
.heat-5 { background: rgba(34, 197, 94, .6); color: #020617; font-weight: 600; }