:root {
  --bg: #f4f6fb;
  --panel: #ffffff;
  --panel-2: #f1f4fa;
  --border: #e2e7f0;
  --text: #1a2233;
  --muted: #6b7790;
  --accent: #3b6cff;
  --accent-2: #6b4bff;
  --green: #10a35a;
  --amber: #c47d00;
  --red: #e0483b;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: radial-gradient(1200px 600px at 80% -10%, #e9eefb 0%, var(--bg) 55%);
  color: var(--text);
  font: 15px/1.5 "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 20px; }

/* Header */
.nav {
  display: flex; align-items: center; gap: 22px;
  padding: 16px 0; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; backdrop-filter: blur(8px);
  background: rgba(255,255,255,.8); z-index: 20;
}
.brand { font-weight: 700; letter-spacing: .3px; display: flex; align-items: center; gap: 10px; }
.brand .dot { width: 10px; height: 10px; border-radius: 50%; background: linear-gradient(135deg,var(--accent),var(--accent-2)); box-shadow: 0 0 14px var(--accent); }
.nav .links { display: flex; gap: 6px; margin-left: 8px; align-items: center; }
.nav .links a { padding: 8px 14px; border-radius: 10px; color: var(--muted); font-weight: 600; }
.nav .links a.active, .nav .links a:hover { color: var(--text); background: var(--panel-2); }
/* Dropdown «Опросники» — открывается по клику (добавляется .open) */
.nav .dd { position: relative; }
.nav .dd > .dd-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px; border-radius: 10px;
  color: var(--muted); font-weight: 600;
  cursor: pointer; user-select: none;
  background: transparent; border: 0; font: inherit;
  transition: background .15s ease, color .15s ease;
}
.nav .dd > .dd-btn .caret {
  width: 8px; height: 8px;
  border-right: 2px solid currentColor; border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform .2s ease;
}
.nav .dd.open > .dd-btn,
.nav .dd > .dd-btn:hover { color: var(--text); background: var(--panel-2); }
.nav .dd.open > .dd-btn .caret { transform: rotate(-135deg) translateY(-2px); }

.nav .dd-menu {
  position: absolute; top: calc(100% + 8px); left: 0;
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 12px 36px rgba(26,34,51,.14), 0 2px 6px rgba(26,34,51,.04);
  padding: 8px; min-width: 320px;
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
  z-index: 100;
}
.nav .dd.open > .dd-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.nav .dd-menu a {
  display: block; padding: 10px 12px; border-radius: 10px;
  color: var(--text); text-decoration: none;
}
.nav .dd-menu a + a { margin-top: 2px; }
.nav .dd-menu a:hover { background: var(--panel-2); }
.nav .dd-menu .ti { font-weight: 600; font-size: 14px; line-height: 1.25; }
.nav .dd-menu .sb { color: var(--muted); font-size: 12px; margin-top: 2px; line-height: 1.35; }
.nav .spacer { flex: 1; }
.pill { font-size: 12px; color: var(--muted); border: 1px solid var(--border); padding: 5px 10px; border-radius: 999px; }

/* Layout */
.grid { display: grid; gap: 18px; }
.page { padding: 26px 0 60px; }
h1.title { font-size: 26px; margin: 4px 0 2px; }
.subtitle { color: var(--muted); margin: 0 0 22px; }

.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 18px; box-shadow: 0 1px 3px rgba(26,34,51,.04), 0 8px 24px rgba(26,34,51,.05); }
.panel h2 { font-size: 16px; margin: 0 0 14px; display:flex; align-items:center; gap:8px; }
.panel h2 .tag { font-size:11px; font-weight:600; color:var(--muted); border:1px solid var(--border); border-radius:999px; padding:2px 8px; }

/* Diagram */
.flow { display: flex; flex-wrap: wrap; align-items: stretch; gap: 0; }
.node {
  background: var(--panel-2); border: 1px solid var(--border); border-radius: 12px;
  padding: 12px 14px; min-width: 150px; flex: 1;
}
.node .label { font-weight: 700; }
.node .note { color: var(--muted); font-size: 12px; margin-top: 4px; }
.arrow { display: flex; align-items: center; color: var(--accent); padding: 0 8px; font-size: 20px; }
.exchange-link { display:flex; align-items:center; gap:10px; padding:10px 0; border-bottom:1px dashed var(--border); }
.exchange-link:last-child { border-bottom: none; }
.exchange-link .badge { background:var(--panel-2); border:1px solid var(--border); border-radius:8px; padding:4px 10px; font-weight:600; }

.kv { display:flex; justify-content:space-between; gap:12px; padding:10px 0; border-bottom:1px dashed var(--border); }
.kv:last-child { border-bottom:none; }
.kv .muted { color: var(--muted); }
.status-chip { font-size:11px; padding:2px 8px; border-radius:999px; border:1px solid var(--border); color:var(--amber); }

.changelog .item { display:flex; gap:12px; padding:10px 0; border-bottom:1px dashed var(--border); }
.changelog .item:last-child { border-bottom:none; }
.changelog .date { color: var(--muted); font-size:12px; white-space:nowrap; min-width: 92px; }

/* Chat */
.chat { display:flex; flex-direction:column; height: 520px; }
.chat .log { flex:1; overflow-y:auto; display:flex; flex-direction:column; gap:10px; padding-right:6px; }
.msg { padding:10px 12px; border-radius:12px; max-width: 90%; }
.msg.user { align-self:flex-end; background:linear-gradient(135deg,var(--accent),var(--accent-2)); color:#fff; }
.msg.assistant { align-self:flex-start; background:var(--panel-2); border:1px solid var(--border); }
.msg.system { align-self:center; background:transparent; color:var(--muted); font-size:12px; }
.chat form { display:flex; gap:8px; margin-top:12px; }
.chat input[type=text] { flex:1; background:var(--panel-2); border:1px solid var(--border); border-radius:10px; padding:11px 12px; color:var(--text); outline:none; }
.chat input[type=text]:focus { border-color: var(--accent); }
.btn { background:linear-gradient(135deg,var(--accent),var(--accent-2)); color:#fff; border:none; border-radius:10px; padding:0 16px; font-weight:700; cursor:pointer; }
.btn.ghost { background:transparent; border:1px solid var(--border); color:var(--text); padding:8px 12px; }

/* Stats */
.stats { display:grid; grid-template-columns: repeat(4,1fr); gap:14px; }
.stat { background:var(--panel); border:1px solid var(--border); border-radius:14px; padding:16px; box-shadow: 0 1px 3px rgba(26,34,51,.04), 0 6px 18px rgba(26,34,51,.05); }
.stat .num { font-size:28px; font-weight:800; }
.stat .lbl { color:var(--muted); font-size:13px; margin-top:2px; }
.stat.red .num{color:var(--red)} .stat.amber .num{color:var(--amber)} .stat.green .num{color:var(--green)}

/* Tasks */
.task { background:var(--panel); border:1px solid var(--border); border-radius:14px; margin-bottom:12px; overflow:hidden; box-shadow: 0 1px 3px rgba(26,34,51,.04), 0 6px 18px rgba(26,34,51,.05); }
.task .head { display:flex; align-items:center; gap:12px; padding:14px 16px; cursor:pointer; }
.task .head:hover { background: var(--panel-2); }
.task .id { color:var(--muted); font-size:12px; font-family: ui-monospace, monospace; }
.task .t-title { font-weight:700; flex:1; }
.task .body { display:none; padding: 0 16px 16px; border-top:1px solid var(--border); }
.task.open .body { display:block; }
.task .body h4 { margin: 14px 0 6px; font-size:13px; color:var(--muted); text-transform:uppercase; letter-spacing:.5px; }
.s-new{color:var(--accent)} .s-analyzing{color:var(--amber)} .s-resolved{color:var(--green)}
.chip { font-size:11px; padding:3px 9px; border-radius:999px; border:1px solid var(--border); }
.solution-steps { margin:0; padding-left: 20px; }
.solution-steps li { margin: 4px 0; }
.conf { font-size:12px; }
.conf.ok{color:var(--green)} .conf.guess{color:var(--amber)}
.src { font-size:11px; color:var(--muted); border:1px solid var(--border); border-radius:6px; padding:2px 7px; }

.two-col { grid-template-columns: 1.6fr 1fr; }
.banner { background: rgba(91,140,255,.08); border:1px solid var(--border); border-radius:12px; padding:10px 14px; color:var(--muted); font-size:13px; margin-bottom:18px; }
@media (max-width: 980px){ .two-col{ grid-template-columns:1fr } .stats{ grid-template-columns:repeat(2,1fr) } }

/* ===== Kanban ===== */
.board { display:grid; grid-template-columns: repeat(4, 1fr); gap:14px; align-items:start; }
.column { background:var(--panel-2); border:1px solid var(--border); border-radius:14px; padding:12px; min-height:140px; }
.column.drag-over { border-color:var(--accent); background:rgba(59,108,255,.06); }
.col-head { display:flex; align-items:center; gap:8px; margin:2px 4px 12px; font-weight:700; }
.col-head .dot-s { width:9px; height:9px; border-radius:50%; }
.col-head .count { margin-left:auto; color:var(--muted); font-size:12px; background:var(--panel); border:1px solid var(--border); border-radius:999px; padding:1px 9px; }
.col-new .dot-s{background:var(--accent)} .col-analyzing .dot-s{background:var(--amber)} .col-progress .dot-s{background:var(--accent-2)} .col-resolved .dot-s{background:var(--green)}

.card { background:var(--panel); border:1px solid var(--border); border-radius:12px; padding:12px; margin-bottom:10px; cursor:grab; box-shadow:0 1px 2px rgba(26,34,51,.05); }
.card:hover { border-color:var(--accent); }
.card:active { cursor:grabbing; }
.card.dragging { opacity:.5; }
.card .c-top { display:flex; align-items:center; gap:8px; margin-bottom:6px; }
.card .c-id { color:var(--muted); font-size:11px; font-family:ui-monospace,monospace; }
.card .c-title { font-weight:600; line-height:1.35; }
.card .c-meta { display:flex; align-items:center; gap:8px; margin-top:10px; }
.prio { font-size:11px; padding:2px 8px; border-radius:999px; border:1px solid var(--border); }
.prio.high{ color:var(--red); border-color:rgba(224,72,59,.4); }
.prio.mid{ color:var(--amber); }
.prio.low{ color:var(--muted); }

/* ===== Modal ===== */
.overlay { position:fixed; inset:0; background:rgba(26,34,51,.35); backdrop-filter:blur(2px); display:none; align-items:center; justify-content:center; z-index:50; padding:20px; }
.overlay.show { display:flex; }
.modal { background:var(--panel); border:1px solid var(--border); border-radius:18px; width:100%; max-width:720px; max-height:88vh; overflow:auto; box-shadow:0 24px 70px rgba(26,34,51,.25); }
.modal .m-head { display:flex; align-items:flex-start; gap:12px; padding:18px 20px; border-bottom:1px solid var(--border); position:sticky; top:0; background:var(--panel); }
.modal .m-head .x { margin-left:auto; cursor:pointer; color:var(--muted); font-size:22px; line-height:1; border:none; background:none; }
.modal .m-body { padding:18px 20px; }
.modal h4 { margin:16px 0 6px; font-size:12px; color:var(--muted); text-transform:uppercase; letter-spacing:.5px; }

/* Floating chat button */
.fab { position:fixed; right:24px; bottom:24px; z-index:40; background:linear-gradient(135deg,var(--accent),var(--accent-2)); color:#fff; border:none; border-radius:999px; padding:14px 20px; font-weight:700; cursor:pointer; box-shadow:0 10px 30px rgba(59,108,255,.4); }

@media (max-width: 1100px){ .board{ grid-template-columns:repeat(2,1fr) } }
@media (max-width: 640px){ .board{ grid-template-columns:1fr } }

/* ===== Content pages (Схемы/Проводки/Реализация) ===== */
.muted2 { color: var(--muted); font-size: 13px; margin: 10px 0 0; }
.schemes-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:16px; }
.scheme-card { border-top:3px solid var(--border); }
.scheme-card.doc { border-top-color: var(--green); }
.scheme-card.agent { border-top-color: var(--accent); }
.scheme-card.subagent { border-top-color: var(--accent-2); }
.scheme-head { display:flex; align-items:center; gap:10px; font-size:16px; margin-bottom:10px; }
.scheme-code { background:var(--panel-2); border:1px solid var(--border); border-radius:8px; padding:2px 10px; font-weight:800; font-family:ui-monospace,monospace; }
.scheme-row { display:flex; justify-content:space-between; gap:12px; padding:7px 0; border-bottom:1px dashed var(--border); font-size:14px; }
.scheme-row:last-of-type { border-bottom:none; }
code { background:var(--panel-2); border:1px solid var(--border); border-radius:6px; padding:1px 6px; font-size:12px; }
table.post { width:100%; border-collapse:collapse; font-size:13px; }
table.post th, table.post td { text-align:left; padding:6px 8px; border-bottom:1px solid var(--border); }
table.post th { color:var(--muted); font-weight:600; }
.impl-list { margin:6px 0 0; padding-left:18px; }
.impl-list li { margin:4px 0; font-size:13px; }
.conf-guess { color:var(--amber); border-color:rgba(196,125,0,.4); }
@media (max-width: 900px){ .schemes-grid{ grid-template-columns:1fr } }