:root {
  --bg: #f4f6f9;
  --surface: #ffffff;
  --surface-2: #f0f2f6;
  --border: #e2e6ec;
  --text: #1b2130;
  --muted: #667085;
  --primary: #2453c9;
  --primary-weak: #e8eefb;
  --ok: #0f7a55;
  --ok-weak: #e2f4ec;
  --warn: #a8540a;
  --warn-weak: #fdf0e0;
  --danger: #c0311a;
  --danger-weak: #fdebe7;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .05), 0 1px 3px rgba(16, 24, 40, .07);
  --font: system-ui, -apple-system, "Segoe UI", Tahoma, "Noto Sans Arabic", "Geeza Pro", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1117;
    --surface: #161b23;
    --surface-2: #1d232e;
    --border: #2a313d;
    --text: #e5e8ee;
    --muted: #97a1b2;
    --primary: #7aa2ff;
    --primary-weak: #1a2847;
    --ok: #46c993;
    --ok-weak: #11301f;
    --warn: #f2a65a;
    --warn-weak: #382412;
    --danger: #ff806b;
    --danger-weak: #3a1913;
    --shadow: none;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.6 var(--font);
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.3; margin: 0; }
h1 { font-size: 1.45rem; }
code { background: var(--surface-2); padding: 1px 6px; border-radius: 6px; font-size: .9em; }

.muted { color: var(--muted); }
.small { font-size: .85rem; }
.num { font-variant-numeric: tabular-nums; }
.nowrap { white-space: nowrap; }
.text-danger { color: var(--danger); font-weight: 600; }
.text-warn { color: var(--warn); font-weight: 600; }

/* ── Top bar ───────────────────────────────────────────────── */
.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px 16px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 20px;
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand-mark { color: var(--primary); font-size: 1.2rem; }
.brand-mark.big { font-size: 2.2rem; }
.live-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); opacity: .5; }
.live-dot.on { background: var(--ok); opacity: 1; box-shadow: 0 0 0 3px var(--ok-weak); }
.nav { display: flex; flex-wrap: wrap; gap: 4px; flex: 1; }
.nav a { padding: 6px 10px; border-radius: 8px; color: var(--muted); font-weight: 500; }
.nav a:hover { background: var(--surface-2); text-decoration: none; }
.nav a.active { background: var(--primary-weak); color: var(--primary); }
.user-menu { display: flex; align-items: center; gap: 8px; }
.user-menu form { margin: 0; }
.user-name { color: var(--text); font-weight: 500; }
.role { color: var(--muted); font-size: .8rem; font-weight: 400; }

/* ── Layout ────────────────────────────────────────────────── */
.page { max-width: 1200px; margin: 0 auto; padding: 20px 16px 48px; display: flex; flex-direction: column; gap: 16px; }
.page-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; }
.page-head h1 { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.crumbs { margin: 0; color: var(--muted); font-size: .9rem; }
.grid-2 { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 900px) { .grid-2 { grid-template-columns: 1fr 1fr; } }
.device-live { display: flex; flex-direction: column; gap: 16px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  min-width: 0;
}
.card.narrow { max-width: 560px; width: 100%; }
.card-title { font-size: 1.05rem; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.card-title-row { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 8px; margin-bottom: 8px; }
.card-title-row .card-title { margin-bottom: 0; }
.sub-title { font-size: .95rem; margin: 14px 0 6px; }
.empty { text-align: center; padding: 40px 16px; display: flex; flex-direction: column; align-items: center; gap: 10px; }

/* ── Badges & counters ─────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 2px 10px; border-radius: 999px;
  font-size: .8rem; font-weight: 600; white-space: nowrap;
  background: var(--surface-2); color: var(--muted);
}
.badge .dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.badge-ok { background: var(--ok-weak); color: var(--ok); }
.badge-warn { background: var(--warn-weak); color: var(--warn); }
.badge-danger { background: var(--danger-weak); color: var(--danger); }
.badge-muted { background: var(--surface-2); color: var(--muted); }
.count { font-size: .8rem; background: var(--surface-2); color: var(--muted); border-radius: 999px; padding: 0 9px; }
.count-danger { background: var(--danger-weak); color: var(--danger); }
.count-warn { background: var(--warn-weak); color: var(--warn); }

/* ── Device cards ──────────────────────────────────────────── */
.device-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
@media (max-width: 360px) { .device-grid { grid-template-columns: 1fr; } }
.device-card { padding: 0; transition: border-color .2s; }
.device-card:hover { border-color: var(--primary); }
.device-card.is-offline { border-color: var(--danger); }
.device-card-link { display: flex; flex-direction: column; gap: 12px; padding: 16px; color: inherit; }
.device-card-link:hover { text-decoration: none; }
.device-card-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }
.device-card-head h2 { font-size: 1.1rem; }
.device-card-head p { margin: 2px 0 0; }

.counters { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.counter { background: var(--surface-2); border-radius: 10px; padding: 8px; text-align: center; display: flex; flex-direction: column; }
.counter strong { font-size: 1.35rem; font-variant-numeric: tabular-nums; }
.counter span { font-size: .75rem; color: var(--muted); }
.counter-danger { background: var(--danger-weak); color: var(--danger); }
.counter-danger span, .counter-warn span { color: inherit; }
.counter-warn { background: var(--warn-weak); color: var(--warn); }

.current, .status-line { margin: 0; font-size: .9rem; overflow-wrap: anywhere; }
.status-text { margin: 0 0 10px; overflow-wrap: anywhere; }
.current-box { background: var(--primary-weak); border-radius: 10px; padding: 10px 12px; margin-bottom: 10px; }
.pulse { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--primary); margin-inline-end: 4px; animation: pulse 1.4s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .25; } }
@media (prefers-reduced-motion: reduce) { .pulse { animation: none; } }

.facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px 16px; margin: 0; }
.facts-wide { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); margin-bottom: 4px; }
.facts div { display: flex; justify-content: space-between; gap: 8px; border-bottom: 1px dashed var(--border); padding: 4px 0; min-width: 0; }
.facts dt { color: var(--muted); font-size: .85rem; }
.facts dd { margin: 0; font-weight: 500; text-align: end; }

.warnings { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.warnings li { background: var(--warn-weak); color: var(--warn); border-radius: 8px; padding: 2px 10px; font-size: .82rem; font-weight: 600; }
.warnings-block li { font-size: .9rem; padding: 6px 12px; }

.bars { display: inline-flex; align-items: flex-end; gap: 2px; height: 14px; vertical-align: middle; }
.bars i { width: 4px; background: var(--border); border-radius: 1px; }
.bars i:nth-child(1) { height: 25%; }
.bars i:nth-child(2) { height: 50%; }
.bars i:nth-child(3) { height: 75%; }
.bars i:nth-child(4) { height: 100%; }
.bars.level-1 i:nth-child(-n+1),
.bars.level-2 i:nth-child(-n+2),
.bars.level-3 i:nth-child(-n+3),
.bars.level-4 i:nth-child(-n+4) { background: var(--ok); }
.bars.level-1 i:nth-child(1) { background: var(--danger); }

.sim-list { list-style: none; margin: 0; padding: 0; }
.sim-list li { display: flex; justify-content: space-between; align-items: center; padding: 6px 0; border-bottom: 1px dashed var(--border); }

/* ── Orders ────────────────────────────────────────────────── */
.order-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.order { border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; }
.order p { margin: 4px 0 0; overflow-wrap: anywhere; }
.order-head { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 12px; }
.order-reason { color: var(--danger); font-weight: 500; }
.order-response { background: var(--surface-2); border-radius: 8px; padding: 6px 10px; white-space: pre-line; }

/* ── Tables ────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { text-align: start; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: .8rem; background: var(--surface-2); }
tbody tr:hover { background: var(--surface-2); }
.row-danger td { color: var(--danger); }

/* ── Alerts ────────────────────────────────────────────────── */
.alert-list { list-style: none; margin: 0; padding: 0; }
.alert-item { display: flex; justify-content: space-between; gap: 12px; padding: 8px 10px; border-inline-start: 3px solid var(--border); margin-bottom: 6px; background: var(--surface-2); border-radius: 6px; }
.alert-item.level-critical { border-inline-start-color: var(--danger); }
.alert-item.level-warning { border-inline-start-color: var(--warn); }
.alert-item.level-info { border-inline-start-color: var(--ok); }
.alert-text { overflow-wrap: anywhere; }

/* ── Forms & buttons ───────────────────────────────────────── */
.field { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; }
.field span { font-size: .85rem; color: var(--muted); font-weight: 500; }
input, select {
  font: inherit; color: var(--text); background: var(--surface);
  border: 1px solid var(--border); border-radius: 8px; padding: 9px 12px; width: 100%;
}
input:focus, select:focus { outline: 2px solid var(--primary-weak); border-color: var(--primary); }
.check { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.check input { width: auto; }
.stack { display: flex; flex-direction: column; }
.inline-form { display: flex; gap: 8px; align-items: center; margin: 0; }
.inline-form select { width: auto; padding: 5px 10px; }
.search-form { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; max-width: 560px; }
.search-form .field { flex: 1; min-width: 200px; margin: 0; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.actions form { margin: 0; }
.edit-box { margin-top: 10px; }
.edit-box summary { cursor: pointer; color: var(--primary); font-size: .9rem; }
.edit-box form { margin-top: 10px; max-width: 480px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font: inherit; font-weight: 600; cursor: pointer;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  padding: 9px 16px; border-radius: 8px; text-decoration: none;
}
.btn:hover { background: var(--surface-2); text-decoration: none; }
.btn-sm { padding: 5px 12px; font-size: .85rem; }
.btn-block { width: 100%; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary); filter: brightness(1.08); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--muted); }
.btn-warn { color: var(--warn); border-color: var(--warn); }
.btn-danger { color: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: var(--danger-weak); }
@media (prefers-color-scheme: dark) { .btn-primary { color: #0e1117; } }

.flash { border-radius: 8px; padding: 10px 12px; margin-bottom: 12px; font-weight: 500; }
.flash-danger { background: var(--danger-weak); color: var(--danger); }
.flash-ok { background: var(--ok-weak); color: var(--ok); }

/* ── Login & pairing ───────────────────────────────────────── */
.login-wrap { min-height: 80vh; display: grid; place-items: center; }
.login-card { width: 100%; max-width: 380px; padding: 28px 24px; }
.login-head { text-align: center; margin-bottom: 20px; }
.login-head h1 { margin-top: 6px; }
.login-head p { margin: 4px 0 0; }
.pairing-code {
  font: 700 2.4rem/1.2 ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  letter-spacing: .12em; text-align: center;
  background: var(--primary-weak); color: var(--primary);
  border-radius: 12px; padding: 18px 8px; margin: 12px 0 16px;
}
.steps { padding-inline-start: 20px; margin: 0 0 16px; }
.steps li { margin-bottom: 6px; }