:root {
  --bg: #0f1420;
  --bg-soft: #161d2e;
  --panel: #1b2436;
  --panel-2: #212c42;
  --line: #2c3852;
  --text: #e7ecf5;
  --muted: #93a0b8;
  --accent: #4f8cff;
  --accent-2: #33d6a6;
  --danger: #ff6b6b;
  --chip: #26324b;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  background: radial-gradient(1200px 600px at 80% -10%, #1a2440 0, transparent 60%), var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* ---------- Topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 40;
  background: rgba(15,20,32,.82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.topbar__inner {
  max-width: 1500px; margin: 0 auto; padding: 12px 22px;
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand__logo {
  width: 44px; height: 44px; border-radius: 12px;
  display: grid; place-items: center; font-weight: 800; letter-spacing: .5px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #06121f; box-shadow: var(--shadow);
}
.brand__title { font-weight: 700; font-size: 17px; }
.brand__sub { color: var(--muted); font-size: 12.5px; }
.topbar__tools { display: flex; align-items: center; gap: 14px; }
.acc-unit { color: var(--muted); font-size: 13px; display: flex; align-items: center; gap: 8px; }

/* ---------- Layout ---------- */
.layout {
  max-width: 1500px; margin: 0 auto; padding: 20px 22px 60px;
  display: grid; grid-template-columns: 340px 1fr; gap: 22px; align-items: start;
}
.sidebar {
  position: sticky; top: 78px;
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 14px; max-height: calc(100vh - 100px);
  overflow: auto; box-shadow: var(--shadow);
}
.sidebar__head {
  display: flex; align-items: baseline; justify-content: space-between;
  padding: 4px 6px 12px; font-weight: 700; font-size: 15px;
}
.sidebar__head .hint { color: var(--muted); font-weight: 500; font-size: 11.5px; }

/* ---------- Filter groups ---------- */
.fsection { margin-bottom: 10px; }
.fsection__title {
  font-size: 11px; text-transform: uppercase; letter-spacing: .12em;
  color: var(--muted); margin: 14px 6px 8px;
}
.fgroup {
  border: 1px solid var(--line); border-radius: 12px; margin-bottom: 8px;
  background: var(--panel); overflow: hidden;
}
.fgroup.is-active { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.fgroup__head {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px; cursor: pointer;
  user-select: none;
}
.fgroup__title { flex: 1; font-size: 13.5px; font-weight: 600; }
.fgroup__title small { display:block; color: var(--muted); font-weight: 500; font-size: 11px; }
.fgroup__body { padding: 0 12px 12px; display: none; }
.fgroup.is-open .fgroup__body { display: block; }
.fgroup__caret { color: var(--muted); transition: transform .15s; font-size: 12px; }
.fgroup.is-open .fgroup__caret { transform: rotate(90deg); }

/* switch */
.switch { position: relative; width: 38px; height: 22px; flex: none; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch span {
  position: absolute; inset: 0; background: #33415d; border-radius: 999px; transition: .18s;
}
.switch span::before {
  content: ""; position: absolute; width: 16px; height: 16px; left: 3px; top: 3px;
  background: #cbd5e6; border-radius: 50%; transition: .18s;
}
.switch input:checked + span { background: var(--accent); }
.switch input:checked + span::before { transform: translateX(16px); background: #fff; }

.field { margin-top: 10px; }
.field__label { font-size: 11.5px; color: var(--muted); margin-bottom: 4px; display:block; }
.row { display: flex; gap: 8px; }
.row .field { flex: 1; margin-top: 0; }
input[type="text"], input[type="number"], select {
  width: 100%; background: var(--panel-2); color: var(--text);
  border: 1px solid var(--line); border-radius: 9px; padding: 8px 10px; font-size: 13px;
  outline: none;
}
input:focus, select:focus { border-color: var(--accent); }
.unit-row { display: flex; gap: 8px; align-items: center; }
.unit-row select { width: 92px; flex: none; }

.forms-list { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.chk {
  display: inline-flex; align-items: center; gap: 6px; font-size: 12px;
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 999px;
  padding: 5px 10px; cursor: pointer;
}
.chk input { accent-color: var(--accent); }

/* meta filters */
.meta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }

/* ---------- Content ---------- */
.content__head {
  display: flex; align-items: center; gap: 16px; margin-bottom: 14px; flex-wrap: wrap;
}
.results-count { font-size: 20px; font-weight: 800; }
.results-count span:first-child { color: var(--accent-2); }
.active-chips { display: flex; gap: 8px; flex-wrap: wrap; }
.achip {
  font-size: 12px; background: var(--chip); border: 1px solid var(--line);
  color: var(--text); border-radius: 999px; padding: 5px 10px; display:inline-flex; gap:8px; align-items:center;
}
.achip button { background: none; border: none; color: var(--muted); cursor: pointer; font-size: 14px; line-height: 1; }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(360px, 1fr)); gap: 16px; }
.card {
  background: linear-gradient(180deg, var(--panel), var(--bg-soft));
  border: 1px solid var(--line); border-radius: var(--radius); padding: 16px;
  box-shadow: var(--shadow); transition: transform .12s, border-color .12s;
}
.card:hover { transform: translateY(-2px); border-color: var(--accent); }
.card__head { display: flex; justify-content: space-between; gap: 10px; align-items: flex-start; }
.card__name { font-size: 13px; color: var(--muted); }
.card__model { font-size: 17px; font-weight: 800; margin: 2px 0 6px; }
.badges { display: flex; flex-wrap: wrap; gap: 6px; margin: 6px 0 4px; }
.badge { font-size: 11px; padding: 3px 8px; border-radius: 999px; background: var(--chip); border: 1px solid var(--line); color: var(--muted); }
.badge--opt { background: rgba(79,140,255,.14); border-color: rgba(79,140,255,.4); color: #bcd3ff; }
.badge--dom { background: rgba(51,214,166,.14); border-color: rgba(51,214,166,.4); color: #b3f0dd; }
.card__meta { font-size: 11.5px; color: var(--muted); margin-top: 6px; }
.klass { font-weight:800; border-radius: 8px; padding: 2px 9px; font-size: 12px; }
.klass--1 { background: rgba(51,214,166,.18); color:#8ff0d3; }
.klass--2 { background: rgba(255,196,84,.16); color:#ffd591; }
.klass--3 { background: rgba(255,107,107,.16); color:#ffb0b0; }

.specs { margin-top: 12px; display: grid; gap: 7px; }
.spec {
  display: grid; grid-template-columns: 150px 1fr; gap: 8px; align-items: baseline;
  font-size: 12.5px; padding: 6px 8px; border-radius: 8px; background: rgba(255,255,255,.02);
}
.spec__k { color: var(--muted); }
.spec__v { font-variant-numeric: tabular-nums; }
.spec__v b { color: var(--text); }
.spec__acc { color: var(--accent-2); }
.spec__freq { color: #bcd3ff; }
.fixlist { color: var(--muted); font-size: 11.5px; }

.section-h { grid-column: 1 / -1; font-size: 11px; text-transform: uppercase; letter-spacing:.1em; color: var(--muted); margin-top: 4px; }

.empty { text-align: center; color: var(--muted); padding: 60px 0; font-size: 15px; }

@media (max-width: 1000px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: static; max-height: none; }
}