:root {
  --red: #ff1a1a; --deep-red: #8f1f18; --amber: #f08a2b; --cyan: #58a7b4; --green: #2fbf71;
  --black: #050505; --carbon: #0b0b0b; --graphite: #1a1a1a; --border: #2a2a2f;
  --white: #fafafb; --ash: #a1a1aa;
  color-scheme: dark;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--black); color: var(--white);
  font-family: Inter, system-ui, sans-serif; font-size: 15px; }
code { font-family: "IBM Plex Mono", ui-monospace, monospace; color: var(--amber); word-break: break-all; }
.topbar { display: flex; justify-content: space-between; align-items: center;
  padding: .8rem 1.2rem; border-bottom: 1px solid var(--border); background: var(--carbon);
  position: sticky; top: 0; z-index: 5; }
.mark { color: var(--red); font-weight: 800; letter-spacing: .14em; margin-right: .7rem; }
.product { color: var(--ash); }
main { max-width: 1100px; margin: 0 auto; padding: 1.2rem; }
.card { background: var(--carbon); border: 1px solid var(--border); border-radius: 10px;
  padding: 1.1rem 1.2rem; margin-bottom: 1rem; }
.card.narrow { max-width: 560px; margin-left: auto; margin-right: auto; }
.grid { display: grid; gap: 1rem; }
.grid.cards { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.grid.halves { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.stat .num { font-size: 1.9rem; font-weight: 700; }
.stat .lbl { color: var(--ash); font-size: .82rem; text-transform: uppercase; letter-spacing: .06em; }
h1, h2, h3 { margin: .2rem 0 .7rem; }
.muted { color: var(--ash); }
.error { color: var(--red); min-height: 1.2em; }
label { display: block; margin: .6rem 0; color: var(--ash); font-size: .9rem; }
label.check { display: flex; gap: .5rem; align-items: center; color: var(--white); }
input, select { width: 100%; margin-top: .25rem; background: var(--graphite); color: var(--white);
  border: 1px solid var(--border); border-radius: 6px; padding: .5rem .6rem; font: inherit; }
input[type="checkbox"] { width: auto; margin: 0; }
fieldset { border: 1px solid var(--border); border-radius: 8px; margin: .8rem 0; }
legend { color: var(--ash); padding: 0 .4rem; }
button { font: inherit; cursor: pointer; border-radius: 6px; border: 1px solid var(--border);
  background: var(--graphite); color: var(--white); padding: .45rem .8rem; }
button.primary { background: var(--deep-red); border-color: var(--red); }
button.primary:hover { background: var(--red); }
.navbtn.active { border-color: var(--cyan); color: var(--cyan); }
.navbtn.danger:hover { border-color: var(--red); color: var(--red); }
.filters { display: flex; gap: .6rem; flex-wrap: wrap; margin-bottom: .8rem; }
.filters input, .filters select { width: auto; flex: 1; min-width: 140px; margin: 0; }
.tablewrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { text-align: left; padding: .5rem .4rem; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--ash); font-weight: 600; }
td .dest { color: var(--ash); word-break: break-all; }
.pill { font-size: .75rem; padding: .1rem .5rem; border-radius: 999px; border: 1px solid var(--border); }
.pill.active { color: var(--green); border-color: var(--green); }
.pill.disabled { color: var(--red); border-color: var(--red); }
.actions { display: flex; gap: .35rem; flex-wrap: wrap; }
.actions button { padding: .25rem .5rem; font-size: .82rem; }
.chart { display: flex; align-items: flex-end; gap: 2px; height: 120px; padding-top: .5rem; }
.chart .bar { flex: 1; background: var(--cyan); min-height: 2px; border-radius: 2px 2px 0 0; position: relative; }
.chart .bar:hover { background: var(--amber); }
.chart .bar span { position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%);
  font-size: .62rem; color: var(--ash); white-space: nowrap; display: none; }
.chart .bar:hover span { display: block; }
.kv { display: flex; justify-content: space-between; padding: .3rem 0; border-bottom: 1px solid var(--border); }
.kv:last-child { border-bottom: none; }
.preview { background: var(--graphite); border: 1px solid var(--border); border-radius: 8px;
  padding: .7rem .8rem; margin: .8rem 0; font-size: .88rem; }
.about { margin-top: 1.5rem; }
#detail-qr img, #detail-qr svg { background: #fff; padding: 6px; border-radius: 8px; max-width: 180px; }