:root {
  --bg: #f1f5f9;
  --panel: #ffffff;
  --border: #e2e8f0;
  --text: #0f172a;
  --muted: #64748b;
  --accent: #4f46e5;
  --accent-2: #6366f1;
  --success: #16a34a;
  --success-bg: #dcfce7;
  --danger: #dc2626;
  --danger-bg: #fee2e2;
  --warning: #d97706;
  --warning-bg: #fef3c7;
  --info: #0284c7;
  --info-bg: #e0f2fe;
  --sidebar: #0f172a;
  --sidebar-text: #94a3b8;
  --sidebar-active: #4f46e5;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.08), 0 1px 2px rgba(15, 23, 42, 0.04);
}

* { box-sizing: border-box; }

html, body, #root { height: 100%; margin: 0; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

/* ---------- Login ---------- */
.login-wrap {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1e1b4b 0%, #4f46e5 60%, #7c3aed 100%);
}
.login-card {
  width: 360px;
  background: var(--panel);
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
}
.login-card h1 {
  font-size: 22px;
  margin: 0 0 4px;
  color: var(--text);
}
.login-card .sub {
  color: var(--muted);
  margin: 0 0 24px;
}
.login-card label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin: 14px 0 6px;
}
.login-card input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
}
.login-card input:focus {
  outline: 2px solid var(--accent);
  border-color: transparent;
}
.login-error {
  color: var(--danger);
  font-size: 13px;
  margin-top: 12px;
  min-height: 18px;
}

/* ---------- Layout ---------- */
.layout { display: flex; height: 100vh; }
.sidebar {
  width: 232px;
  flex: none;
  background: var(--sidebar);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  padding: 20px 14px;
}
.sidebar .brand {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  padding: 0 10px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.sidebar .brand .logo {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent-2), #7c3aed);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: #fff;
}
.sidebar nav { display: flex; flex-direction: column; gap: 4px; }
.sidebar a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--sidebar-text);
  text-decoration: none;
  font-weight: 500;
}
.sidebar a:hover { background: rgba(255, 255, 255, 0.06); color: #fff; }
.sidebar a.active { background: var(--sidebar-active); color: #fff; }
.sidebar .spacer { flex: 1; }
.sidebar .user { padding: 12px; border-top: 1px solid rgba(255, 255, 255, 0.08); }
.sidebar .user .name { color: #fff; font-weight: 600; }
.sidebar .logout {
  margin-top: 8px;
  width: 100%;
  text-align: left;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--sidebar-text);
  border-radius: 8px;
  padding: 8px 10px;
  cursor: pointer;
}
.sidebar .logout:hover { color: #fff; border-color: rgba(255, 255, 255, 0.3); }

.main { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
.topbar {
  height: 56px;
  flex: none;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 24px;
  font-size: 16px;
  font-weight: 600;
}
.content { flex: 1; overflow: auto; padding: 24px; }

/* Hamburger — только на мобильных */
.menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: 8px;
  font-size: 18px;
  line-height: 1;
  color: var(--text);
  cursor: pointer;
  padding: 0;
}
.menu-btn:hover { background: #f8fafc; }
.sidebar-overlay { display: none; }

@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 110;
    width: 260px;
    transform: translateX(-100%);
    transition: transform .25s ease;
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.3);
  }
  .layout.menu-open .sidebar { transform: translateX(0); }
  .sidebar-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.5);
    z-index: 105;
  }
  .menu-btn { display: inline-flex; }
  .topbar { padding: 0 12px; }
  .content { padding: 12px; }

  .modal-backdrop { padding: 16px 8px; align-items: stretch; }
  .modal { width: 100%; max-height: calc(100vh - 32px); }
  .form-grid { grid-template-columns: 1fr; }
  .ctrl-head { flex-wrap: wrap; }
  .action-row .group-label { min-width: 0; }
}

@media (max-width: 600px) {
  .toolbar input[type='text'],
  .toolbar select { min-width: 0 !important; width: 100% !important; }
  .ctrl-meta { grid-template-columns: 1fr 1fr; gap: 0 14px; }
  .meta-item + .meta-item { border-left: none; padding-left: 0; }
  .login-card { width: 100%; max-width: 360px; padding: 24px; }
  .btn { min-height: 40px; }
  .table-wrap { -webkit-overflow-scrolling: touch; }
}

/* ---------- Cards / KPIs ---------- */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.kpi {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}
.kpi .label { color: var(--muted); font-size: 13px; margin-bottom: 6px; }
.kpi .value { font-size: 28px; font-weight: 700; line-height: 1.1; }
.kpi .hint { color: var(--muted); font-size: 12px; margin-top: 4px; }
.kpi .value.green { color: var(--success); }
.kpi .value.red { color: var(--danger); }
.kpi .value.amber { color: var(--warning); }
.kpi .value.blue { color: var(--info); }

.chart-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}
@media (max-width: 1000px) { .chart-grid { grid-template-columns: 1fr; } }
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}
.panel h3 { margin: 0 0 14px; font-size: 15px; }
.panel .muted { color: var(--muted); }

/* Collapsible panel (details/summary) */
details.panel.collapsible { padding: 0; overflow: hidden; }
details.panel.collapsible > summary {
  cursor: pointer;
  padding: 15px 18px;
  font-weight: 600;
  font-size: 14px;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}
details.panel.collapsible > summary::-webkit-details-marker { display: none; }
details.panel.collapsible > summary::after {
  content: '▾';
  color: var(--muted);
  transition: transform .15s ease;
}
details.panel.collapsible[open] > summary::after { transform: rotate(180deg); }
details.panel.collapsible > summary:hover { background: var(--bg); }
details.panel.collapsible > .collapsible-body { padding: 0 18px 18px; }

/* ---------- Table ---------- */
.toolbar {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.toolbar input[type='text'],
.toolbar select {
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  min-width: 220px;
}
.toolbar input:focus, .toolbar select:focus { outline: 2px solid var(--accent); border-color: transparent; }
.toolbar .spacer { flex: 1; }

.table-wrap {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: auto;
  box-shadow: var(--shadow);
}
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
th {
  background: #f8fafc;
  font-weight: 600;
  color: var(--muted);
  position: sticky;
  top: 0;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: #f8fafc; }
td.num { text-align: right; font-variant-numeric: tabular-nums; }

tr.clickable { cursor: pointer; }
tr.clickable:hover td { background: #eef2ff; }
tr.clickable td:first-child { font-weight: 600; }

.empty { padding: 32px; text-align: center; color: var(--muted); }

/* ---------- Badges ---------- */
.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.badge.green { background: var(--success-bg); color: var(--success); }
.badge.red { background: var(--danger-bg); color: var(--danger); }
.badge.amber { background: var(--warning-bg); color: var(--warning); }
.badge.blue { background: var(--info-bg); color: var(--info); }
.badge.gray { background: #f1f5f9; color: var(--muted); }

/* ---------- Buttons ---------- */
.btn {
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
}
.btn:hover { background: #f8fafc; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-2); }
.btn.danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn.danger:hover { filter: brightness(1.08); }
.btn.sm { padding: 5px 10px; font-size: 12.5px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---------- Modal ---------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 40px 16px;
  z-index: 100;
}
.modal {
  background: var(--panel);
  border-radius: var(--radius);
  width: 560px;
  max-width: 100%;
  max-height: 90vh;
  overflow: auto;
  padding: 22px;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.25);
}
.modal h3 { margin: 0 0 18px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-grid .full { grid-column: 1 / -1; }
.field label { display: block; font-size: 12.5px; color: var(--muted); margin-bottom: 5px; }
.field input, .field select {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
}
.field input:focus, .field select:focus { outline: 2px solid var(--accent); border-color: transparent; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; }

/* ---------- misc ---------- */
.msg {
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 14px;
  font-size: 13.5px;
}
.msg.error { background: var(--danger-bg); color: var(--danger); }
.msg.ok { background: var(--success-bg); color: var(--success); }
.loading { color: var(--muted); padding: 24px; text-align: center; }

.fio { font-weight: 600; }
.mono { font-family: Consolas, monospace; font-size: 12.5px; }

/* ---------- Hikvision controllers (business style) ---------- */
.page-title { margin: 0 0 4px; font-size: 18px; font-weight: 700; }
.page-sub { margin: 0 0 18px; color: var(--muted); font-size: 13px; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}
.stat {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  box-shadow: var(--shadow);
}
.stat .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; margin-bottom: 4px; }
.stat .value { font-size: 24px; font-weight: 700; line-height: 1.1; }
.stat .value.green { color: var(--success); }
.stat .value.red { color: var(--danger); }
.stat .value.blue { color: var(--info); }

.ctrl-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 16px;
  overflow: hidden;
}
.ctrl-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(0deg, #fafbfc, #fff);
}
.ctrl-head .name { font-size: 15px; font-weight: 700; }
.ctrl-head .ip { color: var(--muted); }
.ctrl-head .spacer { flex: 1; }
.ctrl-head .head-actions { display: flex; gap: 8px; }

.ctrl-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 0;
  padding: 10px 18px;
  border-bottom: 1px solid var(--border);
}
.meta-item { padding: 8px 0; }
.meta-item + .meta-item { border-left: 1px solid var(--border); padding-left: 18px; }
.meta-item .k { color: var(--muted); font-size: 11.5px; text-transform: uppercase; letter-spacing: .04em; }
.meta-item .v { font-size: 14px; font-weight: 600; margin-top: 2px; }
.meta-item .v.mono { font-size: 12.5px; }

.ctrl-error { margin: 12px 18px 0; }

.action-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 18px;
}
.action-row + .action-row { border-top: 1px solid var(--border); }
.action-row .group-label {
  color: var(--muted); font-size: 11.5px; text-transform: uppercase; letter-spacing: .05em;
  font-weight: 700; margin-right: 6px; min-width: 108px;
}

.dot {
  display: inline-block; width: 9px; height: 9px; border-radius: 50%;
  margin-right: 6px; vertical-align: middle;
}
.dot.online { background: var(--success); box-shadow: 0 0 0 3px rgba(22,163,74,.15); }
.dot.offline { background: var(--danger); box-shadow: 0 0 0 3px rgba(220,38,38,.15); }
.dot.unknown { background: #cbd5e1; }
.st-online { color: var(--success); font-weight: 600; font-size: 13px; }
.st-offline { color: var(--danger); font-weight: 600; font-size: 13px; }

.btn.door-open { border-color: var(--success); color: var(--success); }
.btn.door-open:hover { background: var(--success-bg); }
.btn.door-unlock { border-color: var(--warning); color: var(--warning); }
.btn.door-unlock:hover { background: var(--warning-bg); }
.btn.door-lock { border-color: var(--danger); color: var(--danger); }
.btn.door-lock:hover { background: var(--danger-bg); }
.btn.door-resume { border-color: var(--info); color: var(--info); }
.btn.door-resume:hover { background: var(--info-bg); }

.badge.muted-1 { background: #f1f5f9; color: var(--muted); }
.badge.online { background: var(--success-bg); color: var(--success); }
.badge.offline { background: var(--danger-bg); color: var(--danger); }

.check-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.check-row label { display: inline-flex; align-items: center; gap: 4px; font-size: 13px; white-space: nowrap; }
.check-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 4px 16px; }
.check-grid label { display: inline-flex; align-items: center; gap: 4px; font-size: 13px; white-space: nowrap; }
/* ---------- Vanilla app: login fullscreen ---------- */
body.unauth .sidebar,
body.unauth .topbar { display: none; }
body.unauth .layout { display: block; }
body.unauth .main { overflow: auto; }
body.unauth .content { padding: 0; }

/* ---------- NFC converter ---------- */
.conv-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 12px;
  align-items: start;
}
.conv-arrow {
  font-size: 22px;
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: center;
}
@media (max-width: 700px) {
  .conv-grid { grid-template-columns: 1fr; }
  .conv-arrow { transform: rotate(90deg); align-self: center; padding: 0; }
}