/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #0f1117; --bg2: #1a1d27; --bg3: #242734; --bg4: #2e3140;
  --text: #e2e8f0; --text2: #94a3b8; --text3: #64748b;
  --accent: #6366f1; --accent2: #818cf8;
  --green: #22c55e; --yellow: #f59e0b; --red: #ef4444; --blue: #3b82f6; --cyan: #06b6d4;
  --border: #2e3140; --radius: 8px; --radius-sm: 4px;
  --sidebar-w: 240px;
  --font: system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
}
[data-theme="light"] {
  --bg: #f8fafc;
  --bg2: #ffffff;
  --bg3: #f1f5f9;
  --bg4: #e2e8f0;
  --text: #0f172a;
  --text2: #475569;
  --text3: #64748b;
  --accent: #4f46e5;
  --accent2: #6366f1;
  --border: #cbd5e1;
}
html, body { height: 100%; background: var(--bg); color: var(--text); font-family: var(--font); font-size: 14px; line-height: 1.5; }
a { color: var(--accent2); text-decoration: none; }
a:hover { text-decoration: underline; }
button { cursor: pointer; font-family: inherit; font-size: inherit; }
input, select, textarea { font-family: inherit; font-size: inherit; }

/* ===== Login Screen ===== */
#login-screen {
  display: flex; align-items: center; justify-content: center;
  height: 100vh; background: var(--bg);
}
.login-box {
  background: var(--bg2); border: 1px solid var(--border); border-radius: 12px;
  padding: 40px; width: 400px; max-width: 90vw; text-align: center;
}
.login-box h1 { font-size: 24px; margin-bottom: 4px; }
.login-box .subtitle { color: var(--text2); margin-bottom: 28px; font-size: 13px; }
.login-box .logo { font-size: 40px; margin-bottom: 16px; display: block; }
.login-box input {
  width: 100%; padding: 10px 14px; background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text); margin-bottom: 12px; outline: none;
}
.login-box input:focus { border-color: var(--accent); }
.login-box .btn-login {
  width: 100%; padding: 10px; background: var(--accent); color: #fff; border: none;
  border-radius: var(--radius); font-weight: 600; font-size: 14px; margin-top: 4px;
}
.login-box .btn-login:hover { background: var(--accent2); }
.login-error { color: var(--red); font-size: 13px; margin-top: 8px; min-height: 20px; }

/* ===== App Layout ===== */
#app { display: none; height: 100vh; }
#app.active { display: flex; }

/* ===== Sidebar ===== */
.sidebar {
  width: var(--sidebar-w); background: var(--bg2); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; flex-shrink: 0; overflow-y: auto;
}
.sidebar-brand {
  padding: 20px 16px; border-bottom: 1px solid var(--border);
  font-weight: 700; font-size: 15px; display: flex; align-items: center; gap: 10px;
}
.sidebar-brand .icon { font-size: 22px; }
.sidebar-nav { padding: 8px; flex: 1; }
.sidebar-nav a {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: var(--radius); color: var(--text2);
  font-size: 13px; font-weight: 500; margin-bottom: 2px; transition: all .15s;
}
.sidebar-nav a:hover { background: var(--bg3); color: var(--text); text-decoration: none; }
.sidebar-nav a.active { background: var(--accent); color: #fff; }
.sidebar-nav a .icon { width: 20px; text-align: center; font-size: 16px; }
.sidebar-nav .section-label {
  font-size: 10px; text-transform: uppercase; letter-spacing: 1px;
  color: var(--text3); padding: 16px 12px 6px; font-weight: 600;
}
.sidebar-footer {
  padding: 12px 16px; border-top: 1px solid var(--border);
  font-size: 12px; color: var(--text3); display: flex; align-items: center; justify-content: space-between;
}
.sidebar-footer button {
  background: none; border: none; color: var(--text3); font-size: 12px; padding: 4px 8px;
  border-radius: var(--radius-sm);
}
.sidebar-footer button:hover { color: var(--red); background: rgba(239,68,68,.1); }

/* ===== Main Content ===== */
.main { flex: 1; overflow-y: auto; display: flex; flex-direction: column; }
.topbar {
  padding: 16px 24px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  background: var(--bg); position: sticky; top: 0; z-index: 10;
}
.topbar h2 { font-size: 18px; font-weight: 600; }
.topbar-actions { display: flex; gap: 8px; align-items: center; }
.content { padding: 24px; flex: 1; }

/* ===== Cards & Widgets ===== */
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }
/* Динамическая ширина карточек статистики: колонки подстраиваются под
   содержимое и доступную ширину окна, а не фиксируются сеткой. */
.grid-auto { display: flex; flex-wrap: wrap; gap: 16px; }
.grid-auto > * { flex: 1 1 190px; min-width: 0; }
/* Полноширинные блоки (графики Monitor — на всю ширину окна) */
.page-flow > .card.full-width, .page-flow > .full-width { width: 100%; }
.card {
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px;
}
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.card-title { font-size: 13px; font-weight: 600; color: var(--text2); text-transform: uppercase; letter-spacing: .5px; }
.card-value { font-size: 28px; font-weight: 700; }
.card-sub { font-size: 12px; color: var(--text3); margin-top: 4px; }
.card-icon { font-size: 24px; }

/* ===== Tables ===== */
.table-wrap { overflow-x: auto; background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
thead { background: var(--bg3); }
th { padding: 10px 14px; text-align: left; font-weight: 600; color: var(--text2); font-size: 11px; text-transform: uppercase; letter-spacing: .5px; white-space: nowrap; }
th.sortable { cursor: pointer; user-select: none; transition: color .15s, background .15s; }
th.sortable:hover { color: var(--accent2); background: rgba(99,102,241,.08); }
th.sorted { color: var(--accent2); }
.sort-icon { display: inline-block; margin-left: 5px; font-size: 10px; opacity: .45; vertical-align: middle; }
th.sorted .sort-icon { opacity: 1; color: var(--accent2); }
td { padding: 10px 14px; border-top: 1px solid var(--border); vertical-align: middle; }
tr:hover td { background: rgba(99,102,241,.04); }
.mono { font-family: var(--mono); font-size: 12px; }
.truncate { max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ===== Badges ===== */
.badge {
  display: inline-block; padding: 2px 8px; border-radius: 10px;
  font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .3px;
}
.badge-green { background: rgba(34,197,94,.15); color: var(--green); }
.badge-yellow { background: rgba(245,158,11,.15); color: var(--yellow); }
.badge-red { background: rgba(239,68,68,.15); color: var(--red); }
.badge-blue { background: rgba(59,130,246,.15); color: var(--blue); }
.badge-gray { background: rgba(100,116,139,.15); color: var(--text3); }
.badge-cyan { background: rgba(6,182,212,.15); color: var(--cyan); }
.badge-purple { background: rgba(139,92,246,.15); color: #8b5cf6; }

/* ===== Buttons ===== */
.btn {
  padding: 7px 14px; border-radius: var(--radius); border: 1px solid var(--border);
  background: var(--bg3); color: var(--text); font-size: 13px; font-weight: 500;
  display: inline-flex; align-items: center; gap: 6px; transition: all .15s;
}
.btn:hover { background: var(--bg4); border-color: var(--text3); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent2); border-color: var(--accent2); }
.btn-danger { background: rgba(239,68,68,.15); border-color: var(--red); color: var(--red); }
.btn-danger:hover { background: var(--red); color: #fff; }
.btn-success { background: rgba(34,197,94,.15); border-color: var(--green); color: var(--green); }
.btn-success:hover { background: var(--green); color: #fff; }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-xs { padding: 2px 8px; font-size: 11px; border-radius: 12px; }
.btn-outline { background: transparent; }
.btn-icon { padding: 6px; width: 32px; height: 32px; display: inline-flex; align-items: center; justify-content: center; }
.btn-xs.btn-icon { width: 28px; height: 28px; padding: 4px; border-radius: 8px; font-size: 14px; }
.btn-group { display: flex; gap: 4px; }

/* ===== Page layout helpers ===== */
/* Вертикальный ритм карточек на странице: вместо инлайн-marginTop на каждой
   карточке используется единый отступ между элементами потока. */
.page-flow { display: flex; flex-direction: column; gap: 16px; }
.page-flow .grid { margin: 0; }

/* Под-вкладки внутри страницы (Обзор / Производительность и т.п.) */
.sub-tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 16px; }
.sub-tabs button {
  padding: 8px 16px; background: none; border: none; border-bottom: 2px solid transparent;
  color: var(--text2); font-size: 13px; font-weight: 500; margin-bottom: -1px;
}
.sub-tabs button:hover { color: var(--text); }
.sub-tabs button.active { color: var(--accent2); border-bottom-color: var(--accent2); }

/* Пилюли интерактивной легенды графиков */
.legend-pills { display: flex; flex-wrap: wrap; gap: 6px; max-height: 52px; overflow-y: auto; }
.legend-pill {
  display: inline-flex; align-items: center; gap: 5px; cursor: pointer;
  font-size: 11px; font-weight: 600; padding: 2px 9px; border-radius: 12px;
  border: 1px solid; background: transparent; transition: all .15s;
}
.legend-pill .dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.legend-pill.active { color: #fff; }
.legend-pill.inactive { background: transparent; }

/* Плитки KPI (перцентили на гистограмме, статистика) */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(115px, 1fr)); gap: 10px; margin-bottom: 12px; }
.kpi-tile { background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: 8px 12px; }
.kpi-tile .kpi-label { font-size: 11px; color: var(--text3); margin-bottom: 2px; }
.kpi-tile .kpi-value { font-family: var(--mono); font-size: 17px; font-weight: 700; }
.kpi-tile .kpi-unit { font-size: 11px; font-weight: 400; color: var(--text3); }

/* Карточки-счётчики статусов (Узлы по статусам) */
.status-tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 8px; }
.status-tile { padding: 10px; background: var(--bg3); border-radius: 6px; text-align: center; }
.status-tile .status-count { font-size: 20px; font-weight: 700; margin-bottom: 4px; }

/* Бакеты распределения задержек */
.bucket-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 8px; }
.bucket-tile { background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: 8px 10px; }
.bucket-tile .bucket-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 4px; }
.bucket-tile .bucket-range { font-family: var(--mono); font-size: 12px; font-weight: 600; }
.bucket-tile .bucket-quality { font-size: 10px; padding: 1px 5px; border-radius: 3px; font-weight: 500; }
.bucket-tile .bucket-stats { display: flex; justify-content: space-between; align-items: baseline; }
.bucket-tile .bucket-count { font-family: var(--mono); font-size: 15px; font-weight: 700; }
.bucket-tile .bucket-pct { font-size: 11px; color: var(--text3); }
.bucket-bar { background: var(--bg3); height: 4px; border-radius: 2px; margin-top: 6px; overflow: hidden; }
.bucket-bar > div { height: 100%; border-radius: 2px; transition: width .4s ease; }

/* Заголовок карточки графика: название + бейджи + действия в одну строку */
.chart-card-head { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; margin-bottom: 12px; }
.chart-card-head .chart-title { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.chart-card-head .chart-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.chart-note { font-size: 12px; color: var(--text3); margin-top: 3px; }

/* ===== Forms & Modals ===== */
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 12px; font-weight: 600; color: var(--text2); margin-bottom: 4px; text-transform: uppercase; letter-spacing: .3px; }
.form-control {
  width: 100%; padding: 8px 12px; background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text); outline: none;
}
.form-control:focus { border-color: var(--accent); }
select.form-control { appearance: auto; }
.checkbox-group { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; }
.checkbox-group label { display: flex; align-items: center; gap: 4px; font-size: 13px; color: var(--text); text-transform: none; letter-spacing: 0; font-weight: 400; cursor: pointer; }
.checkbox-group input[type="checkbox"] { accent-color: var(--accent); }

.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.6); display: flex;
  align-items: center; justify-content: center; z-index: 1000;
}
.modal {
  background: var(--bg2); border: 1px solid var(--border); border-radius: 12px;
  padding: 24px; width: 520px; max-width: 90vw; max-height: 85vh; overflow-y: auto;
}
.modal h3 { font-size: 17px; margin-bottom: 16px; }
.modal-footer { display: flex; justify-content: flex-end; gap: 8px; margin-top: 20px; }
.modal-footer-icons { flex-wrap: wrap; justify-content: center; gap: 6px; }

/* ===== Toast ===== */
.toast-container { position: fixed; top: 16px; right: 16px; z-index: 2000; display: flex; flex-direction: column; gap: 8px; }
.toast {
  padding: 12px 20px; border-radius: var(--radius); font-size: 13px; font-weight: 500;
  min-width: 260px; animation: slideIn .3s ease; box-shadow: 0 4px 16px rgba(0,0,0,.4);
}
.toast-success { background: #166534; color: #bbf7d0; border: 1px solid var(--green); }
.toast-error { background: #7f1d1d; color: #fecaca; border: 1px solid var(--red); }
.toast-info { background: #1e3a5f; color: #bfdbfe; border: 1px solid var(--blue); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ===== JSON Tree ===== */
.json-tree { font-family: var(--mono); font-size: 12px; line-height: 1.7; }
.json-key { color: var(--accent2); }
.json-string { color: var(--green); }
.json-number { color: var(--yellow); }
.json-bool { color: var(--cyan); }
.json-null { color: var(--text3); }
.json-toggle { cursor: pointer; user-select: none; }
.json-toggle::before { content: '▼ '; font-size: 10px; }
.json-toggle.collapsed::before { content: '▶ '; }
.json-match {
  background: rgba(245, 158, 11, 0.25) !important;
  color: #fbbf24 !important;
  padding: 1px 4px;
  border-radius: 4px;
  box-shadow: 0 0 0 1px rgba(245, 158, 11, 0.4);
}

/* ===== Chip ===== */
.chip {
  display: inline-block; padding: 1px 7px; border-radius: 4px; font-size: 11px;
  background: var(--bg4); color: var(--text2); margin: 1px 2px; font-family: var(--mono);
}

/* ===== Security flags ===== */
.flag-list { display: flex; flex-wrap: wrap; gap: 6px; }
.flag {
  display: inline-flex; align-items: center; gap: 4px; padding: 4px 10px;
  border-radius: 6px; font-size: 12px; font-weight: 500;
}
.flag-on { background: rgba(34,197,94,.12); color: var(--green); }
.flag-off { background: rgba(239,68,68,.1); color: var(--red); }

/* ===== Misc ===== */
.empty-state { text-align: center; padding: 48px 24px; color: var(--text3); }
.empty-state .icon { font-size: 48px; margin-bottom: 12px; display: block; }
.loading { text-align: center; padding: 32px; color: var(--text3); }
.toolbar { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; align-items: center; }
.toolbar .spacer { flex: 1; }
.tag-input { display: flex; gap: 4px; flex-wrap: wrap; align-items: center; }
.detail-grid { display: grid; grid-template-columns: 160px 1fr; gap: 6px 16px; font-size: 13px; }
.detail-grid dt { color: var(--text3); font-weight: 500; }
.detail-grid dd { color: var(--text); word-break: break-all; }

/* ===== Bulk Toolbar ===== */
.bulk-toolbar {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg2);
  border: 1px solid var(--accent);
  box-shadow: 0 10px 25px rgba(0,0,0,0.5);
  border-radius: var(--radius);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  z-index: 1000;
  animation: floatUp .2s ease;
}
@keyframes floatUp {
  from { transform: translate(-50%, 20px); opacity: 0; }
  to { transform: translate(-50%, 0); opacity: 1; }
}

/* ===== Table Grouping Styles ===== */
.group-header-row {
  background: var(--bg3) !important;
  border-top: 2px solid var(--border);
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  user-select: none;
}
.group-header-row:hover td {
  background: var(--bg4) !important;
}
.group-header-row td {
  padding: 10px 14px !important;
}
.group-header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.group-header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}
.group-toggle-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.06);
  font-size: 11px;
  color: var(--text2);
  transition: transform .15s, color .15s, background .15s;
}
.group-header-row:hover .group-toggle-icon {
  color: var(--accent2);
  background: rgba(99, 102, 241, 0.2);
}
.group-title {
  font-size: 13px;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.group-badge {
  font-size: 11px;
  background: var(--bg4);
  color: var(--text2);
  padding: 2px 8px;
  border-radius: 12px;
  font-weight: 500;
  border: 1px solid var(--border);
}
.group-header-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--text3);
}
.group-header-meta strong {
  color: var(--text2);
  font-weight: 600;
}
.group-child-row td {
  background: var(--bg2);
}
.group-child-row:hover td {
  background: rgba(99, 102, 241, 0.05) !important;
}
.group-child-indent {
  display: inline-flex;
  align-items: center;
  margin-right: 6px;
  color: var(--text3);
  font-family: var(--mono);
  font-size: 11px;
}
.segmented-btn {
  padding: 5px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg3);
  color: var(--text2);
  font-size: 12px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: all .15s;
}
.segmented-btn:hover {
  background: var(--bg4);
  color: var(--text);
  border-color: var(--text3);
}
.segmented-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 1px 4px rgba(99, 102, 241, 0.4);
}

/* ===== Help & Documentation Styles ===== */
.help-card {
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; margin-bottom: 20px;
}
.help-hero {
  background: linear-gradient(135deg, rgba(99,102,241,0.12), rgba(6,182,212,0.06));
  border: 1px solid rgba(99,102,241,0.25); border-radius: 12px; padding: 22px 24px; margin-bottom: 22px;
}
.help-tabs-nav {
  display: flex; gap: 6px; background: var(--bg); padding: 4px; border-radius: var(--radius);
  border: 1px solid var(--border); margin-bottom: 14px; overflow-x: auto;
}
.help-tab-btn {
  padding: 8px 16px; border: none; background: transparent; color: var(--text2);
  border-radius: var(--radius-sm); font-size: 13px; font-weight: 500; cursor: pointer;
  transition: all .15s; white-space: nowrap;
}
.help-tab-btn:hover { color: var(--text); background: var(--bg3); }
.help-tab-btn.active { color: #fff; background: var(--accent); font-weight: 600; }
.code-container {
  background: #0b0d13; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; margin-top: 10px;
}
.code-header {
  display: flex; justify-content: space-between; align-items: center; padding: 8px 14px;
  background: #141721; border-bottom: 1px solid var(--border); font-size: 12px; color: var(--text3);
}
.code-body {
  padding: 14px; margin: 0; font-family: var(--mono); font-size: 12px; line-height: 1.6;
  color: #e2e8f0; overflow-x: auto; white-space: pre;
}
.endpoint-badge {
  display: inline-block; font-family: var(--mono); font-weight: 700; font-size: 11px;
  padding: 2px 7px; border-radius: 4px;
}
.endpoint-get { background: rgba(34,197,94,.15); color: var(--green); }
.endpoint-post { background: rgba(59,130,246,.15); color: var(--blue); }

/* ===== FAQ Accordion Styles ===== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 14px;
}
.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .2s;
}
.faq-item.open {
  border-color: rgba(99, 102, 241, 0.45);
}
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 13px 18px;
  cursor: pointer;
  user-select: none;
  font-weight: 500;
  font-size: 13.5px;
  color: var(--text);
  background: transparent;
  transition: background .15s;
}
.faq-question:hover {
  background: var(--bg3);
}
.faq-question .faq-chevron {
  transition: transform .2s ease;
  font-size: 11px;
  color: var(--text2);
}
.faq-item.open .faq-chevron {
  transform: rotate(180deg);
  color: var(--accent);
}
.faq-answer {
  display: none;
  padding: 0 18px 15px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text2);
  border-top: 1px solid transparent;
}
.faq-item.open .faq-answer {
  display: block;
  border-top-color: var(--border);
  padding-top: 12px;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .sidebar { display: none; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .content { padding: 16px; }
}

/* ===== Node Chat Modal ===== */
.modal-overlay-wide .modal { width: 640px; max-width: 92vw; display: flex; flex-direction: column; }
.node-chat { display: flex; flex-direction: column; gap: 10px; min-height: 0; }
.node-chat-meta { font-size: 12px; color: var(--text2); word-break: break-all; }
.node-chat-messages {
  height: 340px; overflow-y: auto; display: flex; flex-direction: column; gap: 8px;
  background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 12px;
}
.node-chat-empty { margin: auto; color: var(--text3); font-size: 13px; text-align: center; }
.node-chat-msg { max-width: 78%; padding: 8px 12px; border-radius: 10px; font-size: 13px; line-height: 1.45; }
.node-chat-msg.msg-user { align-self: flex-end; background: var(--accent); color: #fff; }
.node-chat-msg.msg-assistant { align-self: flex-start; background: var(--bg2); border: 1px solid var(--border); }
.node-chat-msg.msg-error { align-self: flex-start; background: rgba(239,68,68,.12); border: 1px solid var(--red); color: var(--red); }
.node-chat-msg-head { font-size: 10px; opacity: .75; margin-bottom: 3px; display: flex; gap: 8px; text-transform: uppercase; letter-spacing: .5px; }
.node-chat-msg-body { white-space: pre-wrap; word-break: break-word; }
.node-chat-model-row { display: flex; align-items: center; gap: 8px; }
.node-chat-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin: 2px 0; }
.node-chat-count { color: #8b93a7; font-size: 12px; }
.node-chat-clear[disabled] { opacity: .45; cursor: default; }
.node-chat-model-label { font-size: 12px; color: var(--text2); text-transform: uppercase; letter-spacing: .5px; }
.node-chat-model-select { max-width: 320px; font-size: 13px; }
.node-chat-retry { margin-top: 6px; font-size: 12px; padding: 3px 10px; background: var(--bg2); color: var(--red); border: 1px solid var(--red); border-radius: 6px; cursor: pointer; }
.node-chat-retry:hover { background: rgba(239,68,68,.18); }
.node-chat-input-row { display: flex; gap: 8px; }
.node-chat-input { flex: 1; }
.node-chat-send { flex-shrink: 0; }

/* Dropdown-меню перепроверки статусов узлов (Узлы → «🔄 Проверить статусы») */
.dropdown-item {
  display: block;
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  color: var(--text);
  padding: 8px 12px;
  border-radius: calc(var(--radius) - 4px);
  font-size: 13px;
  cursor: pointer;
}
.dropdown-item:hover:not(:disabled) { background: var(--bg3, rgba(255,255,255,.06)); }
.dropdown-item:disabled { cursor: not-allowed; }