:root {
  --bg: #0b1021;
  --bg-2: #141a35;
  --card: #1a2142;
  --border: #2a3360;
  --text: #e6ebff;
  --muted: #94a0cc;
  --accent: #6fa8ff;
  --accent-2: #4ade80;
  --warn: #fbbf24;
  --danger: #f87171;
  --mono: ui-monospace, Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: linear-gradient(135deg, var(--bg) 0%, var(--bg-2) 100%);
  color: var(--text);
  min-height: 100vh;
}
header {
  padding: 20px 32px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 12px; }
.dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--accent-2); box-shadow: 0 0 12px var(--accent-2);
}
.brand h1 { font-size: 20px; margin: 0; letter-spacing: 0.3px; }
.sub { color: var(--muted); font-size: 13px; }
.net-info { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.net-info b { color: var(--accent); }

main { padding: 24px 32px 60px; max-width: 1300px; margin: 0 auto; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.25);
}
.card-head h2 {
  font-size: 15px;
  margin: 0 0 12px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--accent);
}
.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.row.right { justify-content: flex-end; margin-top: 16px; }
label { display: inline-flex; gap: 6px; align-items: center; font-size: 13px; }
input, select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 7px 10px;
  border-radius: 6px;
  font-size: 13px;
  font-family: inherit;
  min-width: 150px;
}
input:focus, select:focus { outline: 2px solid var(--accent); border-color: var(--accent); }
.btn {
  padding: 8px 14px;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.15s;
}
.btn:hover { background: var(--border); }
.btn.primary { background: var(--accent); color: #0b1021; border-color: var(--accent); font-weight: 600; }
.btn.primary:hover { background: #93bfff; }
.btn.danger { color: var(--danger); border-color: var(--danger); }
.btn.danger:hover { background: var(--danger); color: #0b1021; }
.btn.small { padding: 5px 10px; font-size: 12px; }

.status { font-family: var(--mono); font-size: 12px; color: var(--muted); margin-left: 8px; }
.status.ok { color: var(--accent-2); }
.status.err { color: var(--danger); }

#scan-results { margin-top: 16px; display: grid; gap: 12px; }
.host {
  border: 1px solid var(--border);
  background: var(--bg);
  border-radius: 8px;
  padding: 14px 16px;
}
.host.cam { border-left: 3px solid var(--accent-2); }
.host-head { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.host-ip { font-family: var(--mono); font-size: 15px; font-weight: 600; }
.host-vendor { font-size: 12px; padding: 2px 8px; border-radius: 10px; background: var(--border); text-transform: uppercase; letter-spacing: 0.5px; }
.host-ports { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.chip {
  display: inline-block; padding: 2px 8px; margin: 2px 4px 2px 0;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 10px; font-family: var(--mono); font-size: 11px;
  cursor: pointer;
}
.chip:hover { border-color: var(--accent); color: var(--accent); }
.chip.ok { border-color: var(--accent-2); color: var(--accent-2); }
.chip.err { border-color: var(--danger); color: var(--danger); }
.host-detail { margin-top: 8px; font-size: 12px; color: var(--muted); font-family: var(--mono); }
.probe-row { margin-top: 10px; padding-top: 10px; border-top: 1px dashed var(--border); }
.probe-row small { color: var(--muted); margin-right: 8px; }

table { width: 100%; border-collapse: collapse; margin-top: 10px; }
th, td { padding: 10px 8px; text-align: left; font-size: 13px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 500; font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; }
td.mono { font-family: var(--mono); }
.pill {
  display: inline-block; padding: 2px 8px; border-radius: 10px;
  font-size: 11px; font-weight: 600;
}
.pill.alive { background: rgba(74,222,128,0.15); color: var(--accent-2); }
.pill.dead { background: rgba(248,113,113,0.15); color: var(--danger); }
.pill.ok   { background: rgba(74,222,128,0.15); color: var(--accent-2); }
.pill.warn { background: rgba(250,180,80,0.15); color: #d99524; }
.pill.err  { background: rgba(248,113,113,0.15); color: var(--danger); }
.status.err { color: var(--danger); }
.status.ok  { color: var(--accent-2); }

/* Dashboard key-value rows */
.kv {
  display: flex; align-items: center; gap: 10px;
  padding: 4px 0; font-size: 13px;
}
.kv > span:first-child {
  color: var(--muted); min-width: 100px; flex-shrink: 0;
}
.kv input[type="range"] { flex: 1; min-width: 100px; }
.kv input[type="number"], .kv select {
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 4px;
  padding: 2px 6px; font-size: 13px;
}
details > summary { padding: 6px 0; user-select: none; }
details > summary:hover { opacity: 0.85; }

.modal {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6);
  display: flex; align-items: center; justify-content: center; z-index: 100;
}
.modal.hidden { display: none; }
.modal-body {
  background: var(--card); border: 1px solid var(--border);
  padding: 24px; border-radius: 10px; width: 400px; max-width: 90vw;
  max-height: 90vh; overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.modal-body::-webkit-scrollbar { width: 8px; }
.modal-body::-webkit-scrollbar-thumb {
  background: var(--border); border-radius: 4px;
}
/* NVR modal rộng hơn vì có bảng scan channels */
#nvr-modal .modal-body { width: 640px; }

/* Bảng scan channels: compact, không override bởi `.modal-body label{display:flex}` */
#n-scan-result table { border-collapse: collapse; width: 100%; }
#n-scan-result th, #n-scan-result td {
  padding: 6px 8px; border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
#n-scan-result th {
  font-size: 11px; text-transform: uppercase; color: var(--muted);
  font-weight: 600; letter-spacing: 0.03em;
}
#n-scan-result tr:last-child td { border-bottom: none; }
#n-scan-result input[type="text"],
#n-scan-result select {
  width: 100%; padding: 4px 8px; font-size: 13px;
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 4px;
}
#n-scan-result input[type="checkbox"] { margin: 0; cursor: pointer; }
.modal-body h3 { margin-top: 0; color: var(--accent); }
.modal-body label { display: flex; margin-bottom: 10px; }
.modal-body label input, .modal-body label select { flex: 1; margin-left: 10px; }

footer { padding: 20px 32px; text-align: center; color: var(--muted); font-size: 12px; }
footer code { font-family: var(--mono); color: var(--accent); }

a.url { color: var(--accent); text-decoration: none; font-family: var(--mono); }
a.url:hover { text-decoration: underline; }