/* Star Online NMS — base stylesheet (no external dependencies) */
:root {
  --bg: #f3f5f9;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --border: #e3e8ef;
  --text: #0f172a;
  --text-2: #475569;
  --muted: #64748b;
  --primary: #2563eb;
  --primary-600: #1d4ed8;
  --primary-50: #eff6ff;
  --up: #059669;
  --up-50: #ecfdf5;
  --down: #dc2626;
  --down-50: #fef2f2;
  --warn: #b45309;
  --warn-50: #fffbeb;
  --unknown: #64748b;
  --side: #0b1220;
  --side-2: #131c2e;
  --side-text: #a8b3c7;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(15, 23, 42, .05), 0 1px 3px rgba(15, 23, 42, .06);
  --font: "Inter", "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  --mono: "JetBrains Mono", "Cascadia Mono", Consolas, "SFMono-Regular", monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { font: 14px/1.5 var(--font); color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { margin: 0; line-height: 1.25; }
h2 { font-size: 16px; font-weight: 600; }
h3 { font-size: 14px; font-weight: 600; margin-bottom: 8px; }
code { font-family: var(--mono); font-size: 12.5px; background: #eef2f7; padding: 1px 6px; border-radius: 5px; word-break: break-all; }
.icon { flex-shrink: 0; vertical-align: middle; }
.mono { font-family: var(--mono); font-size: 12.5px; }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.strong { font-weight: 600; }
.nowrap { white-space: nowrap; }
.pre { white-space: pre-wrap; word-break: break-word; }
.warn { color: var(--warn); }
.mt { margin-top: 20px; }
.pad { padding: 16px 20px; margin: 0; }
[hidden] { display: none !important; }

/* ---------- Sidebar layout ---------- */
.sidebar {
  position: fixed; inset: 0 auto 0 0; width: 240px; background: var(--side); color: var(--side-text);
  display: flex; flex-direction: column; z-index: 30; transition: transform .2s ease;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 18px 18px 14px; color: #fff; }
.brand strong { display: block; font-size: 14px; }
.brand span { display: block; font-size: 11.5px; color: var(--side-text); letter-spacing: .02em; }
.sidebar nav { flex: 1; overflow-y: auto; padding: 6px 10px; }
.nav-label { font-size: 10.5px; text-transform: uppercase; letter-spacing: .08em; color: #5d6a82; padding: 16px 10px 6px; }
.nav-link { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 8px; color: var(--side-text); font-weight: 500; }
.nav-link:hover { background: var(--side-2); color: #fff; text-decoration: none; }
.nav-link.active { background: #1e3a8a; color: #fff; }
.nav-link.disabled { opacity: .45; cursor: default; }
.nav-link.disabled:hover { background: none; color: var(--side-text); }
.sidebar-foot { padding: 12px 20px; font-size: 11px; color: #5d6a82; }

.main { margin-left: 240px; min-height: 100vh; display: flex; flex-direction: column; min-width: 0; }
.topbar {
  position: sticky; top: 0; z-index: 20; height: 60px; display: flex; align-items: center; gap: 12px;
  padding: 0 24px; background: rgba(255, 255, 255, .9); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border);
}
.page-title { font-size: 18px; font-weight: 600; flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.topbar-right { display: flex; align-items: center; gap: 8px; }
.topbar-right form { margin: 0; }
.user-chip { display: flex; align-items: center; gap: 8px; padding: 4px 10px 4px 4px; border-radius: 999px; color: var(--text); }
.user-chip:hover { background: var(--surface-2); text-decoration: none; }
.avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--primary-50); color: var(--primary); display: grid; place-items: center; font-weight: 700; }
.user-meta strong { display: block; font-size: 13px; line-height: 1.2; }
.user-meta small { color: var(--muted); font-size: 11.5px; text-transform: capitalize; }
.icon-btn { border: 0; background: none; color: var(--text-2); width: 36px; height: 36px; border-radius: 8px; display: grid; place-items: center; cursor: pointer; }
.icon-btn:hover { background: var(--surface-2); color: var(--text); }
.menu-toggle { display: none; }
.content { padding: 24px; max-width: 1400px; width: 100%; min-width: 0; }
.backdrop { display: none; }

/* ---------- Cards & grids ---------- */
.card { min-width: 0; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px; margin-bottom: 20px; }
.card.flush { padding: 0; overflow: hidden; }
.card.narrow { max-width: 720px; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.card-head h2 { display: flex; align-items: center; gap: 8px; }
.grid-main { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); gap: 20px; }
.grid-2col { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 20px; align-items: start; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 16px; align-items: start; }

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 20px; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow); color: var(--text); display: flex; flex-direction: column; gap: 2px; position: relative; overflow: hidden; }
.stat:hover { text-decoration: none; border-color: #cbd5e1; }
.stat::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 4px; background: var(--border); }
.stat-up::before { background: var(--up); }
.stat-down::before { background: var(--down); }
.stat-down .stat-value { color: var(--down); }
.stat-label { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); font-weight: 600; }
.stat-value { font-size: 30px; font-weight: 700; font-variant-numeric: tabular-nums; }
.stat-sub { font-size: 12.5px; color: var(--muted); }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; }
.table th { text-align: left; font-size: 11.5px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); font-weight: 600; padding: 10px 14px; background: var(--surface-2); border-bottom: 1px solid var(--border); white-space: nowrap; }
.table td { padding: 10px 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
.table tbody tr:last-child td { border-bottom: 0; }
.table tbody tr:hover { background: #fafbfd; }
.table .num { text-align: right; font-variant-numeric: tabular-nums; }
.table .actions { text-align: right; white-space: nowrap; }
.card:not(.flush) .table th:first-child, .card:not(.flush) .table td:first-child { padding-left: 0; }
.row-down { background: #fff7f7; }

/* ---------- Badges ---------- */
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; background: #eef2f7; color: var(--text-2); white-space: nowrap; }
.badge .dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.badge-up { background: var(--up-50); color: var(--up); }
.badge-down { background: var(--down-50); color: var(--down); }
.badge-unknown { background: #f1f5f9; color: var(--unknown); }
.badge-muted { background: #f1f5f9; color: var(--muted); }
.sev-critical { background: var(--down-50); color: var(--down); }
.sev-warning { background: var(--warn-50); color: var(--warn); }
.sev-info { background: var(--primary-50); color: var(--primary); }
.role-admin { background: #f5f3ff; color: #6d28d9; }
.role-operator { background: var(--primary-50); color: var(--primary); }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; height: 36px; padding: 0 14px; border-radius: 8px; border: 1px solid var(--border); background: var(--surface); color: var(--text); font: 500 13.5px var(--font); cursor: pointer; white-space: nowrap; }
.btn:hover { background: var(--surface-2); text-decoration: none; border-color: #cbd5e1; }
.btn:disabled { opacity: .6; cursor: progress; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-600); border-color: var(--primary-600); }
.btn-danger { background: var(--down); border-color: var(--down); color: #fff; }
.btn-danger:hover { background: #b91c1c; border-color: #b91c1c; }
.btn-danger-ghost { color: var(--down); }
.btn-sm { height: 30px; padding: 0 10px; font-size: 12.5px; }
.btn-block { width: 100%; }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; }
.link-btn { background: none; border: 0; padding: 0; color: var(--muted); cursor: pointer; font: inherit; text-decoration: underline; }

/* ---------- Forms ---------- */
.form { margin: 0; }
.field { display: flex; flex-direction: column; gap: 5px; margin-bottom: 14px; min-width: 0; }
.field > span { font-weight: 500; font-size: 13px; color: var(--text-2); }
.field small { color: var(--muted); font-size: 12px; }
input[type=text], input[type=password], input[type=email], input[type=number], input[type=search], select, textarea {
  width: 100%; height: 38px; padding: 0 11px; border: 1px solid #cfd8e3; border-radius: 8px; background: #fff; color: var(--text); font: 14px var(--font);
}
textarea { height: auto; padding: 9px 11px; resize: vertical; }
input.mono { font-family: var(--mono); }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37, 99, 235, .15); }
input:disabled { background: var(--surface-2); color: var(--muted); }
.check { display: flex; align-items: center; gap: 8px; margin: 4px 0 14px; cursor: pointer; }
.check input { width: 16px; height: 16px; accent-color: var(--primary); }
.check.small { margin-top: -8px; color: var(--muted); }
.form-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 6px; }
.sticky-actions { position: sticky; bottom: 0; background: linear-gradient(transparent, var(--bg) 30%); padding: 16px 0; }
.inline-form { display: inline-flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; margin: 0; }
.inline-form .field { margin-bottom: 0; }
.subsection { border-top: 1px dashed var(--border); margin-top: 6px; padding-top: 14px; }
.code-input { font-family: var(--mono); font-size: 20px !important; letter-spacing: .3em; text-align: center; height: 48px !important; }

/* ---------- Toolbar & filters ---------- */
.toolbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.toolbar p { margin: 0; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin: 0; }
.filters select { width: auto; min-width: 130px; }
.search { position: relative; display: flex; align-items: center; }
.search .icon { position: absolute; left: 10px; color: var(--muted); }
.search input { padding-left: 32px; width: 240px; }
.title-line { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

/* ---------- Alerts ---------- */
.alert { padding: 11px 14px; border-radius: 8px; margin-bottom: 16px; border: 1px solid; font-size: 13.5px; }
.alert-success { background: var(--up-50); border-color: #a7f3d0; color: #065f46; }
.alert-error { background: var(--down-50); border-color: #fecaca; color: #991b1b; }
.alert-warning { background: var(--warn-50); border-color: #fde68a; color: #92400e; }
.alert-info { background: var(--primary-50); border-color: #bfdbfe; color: #1e40af; }

/* ---------- Definition lists ---------- */
.kv { display: grid; grid-template-columns: 140px 1fr; gap: 9px 14px; margin: 0; }
.kv dt { color: var(--muted); font-size: 13px; }
.kv dd { margin: 0; min-width: 0; }

/* ---------- Dashboard bits ---------- */
.type-list, .mini-list { list-style: none; margin: 0; padding: 0; }
.type-list li { margin-bottom: 12px; }
.type-row { display: flex; justify-content: space-between; margin-bottom: 4px; }
.bar { height: 6px; border-radius: 99px; background: var(--down-50); overflow: hidden; }
.bar span { display: block; height: 100%; width: 0; background: var(--up); border-radius: 99px; transition: width .4s; }
.mini-list li { display: flex; justify-content: space-between; gap: 8px; padding: 6px 0; border-bottom: 1px solid var(--border); }
.mini-list li:last-child { border-bottom: 0; }
.ok-line { display: flex; align-items: center; gap: 8px; color: var(--up); margin: 0; }
.empty-state { text-align: center; padding: 48px 20px; color: var(--muted); }
.empty-state h2 { color: var(--text); margin: 12px 0 6px; font-size: 20px; }

/* ---------- Device test ---------- */
.test-results { list-style: none; margin: 0; padding: 0; }
.test-results li { display: grid; grid-template-columns: 26px 170px 1fr; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--border); align-items: start; }
.test-results li:last-child { border-bottom: 0; }
.test-results .t-ok { color: var(--up); }
.test-results .t-fail { color: var(--down); }
.test-results .t-name { font-weight: 600; }
.test-results pre { margin: 6px 0 0; font: 12px var(--mono); white-space: pre-wrap; color: var(--text-2); background: var(--surface-2); padding: 8px; border-radius: 6px; }
.danger-zone { border-color: #fecaca; }

/* ---------- Auth pages ---------- */
.auth-body { min-height: 100vh; background: radial-gradient(1200px 600px at 10% -10%, #dbeafe 0, transparent 60%), radial-gradient(900px 500px at 110% 110%, #e0e7ff 0, transparent 55%), var(--bg); }
.auth-wrap { min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 32px 16px; }
.auth-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 22px; }
.auth-brand strong { display: block; font-size: 17px; }
.auth-brand span { color: var(--muted); font-size: 12.5px; }
.auth-card { width: 100%; max-width: 400px; padding: 28px; }
.auth-card.wide { max-width: 640px; }
.auth-card h2 { font-size: 20px; margin-bottom: 4px; display: flex; align-items: center; gap: 8px; }
.auth-card > p.muted { margin-top: 0; margin-bottom: 18px; }
.auth-wrap > .alert { width: 100%; max-width: 400px; }
.error-card { text-align: center; }
.error-code { font-size: 48px; font-weight: 800; color: #cbd5e1; }
.stepper { display: flex; gap: 8px; list-style: none; padding: 0; margin: 18px 0 22px; }
.stepper li { flex: 1; display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); padding-bottom: 10px; border-bottom: 3px solid var(--border); }
.stepper li span { width: 22px; height: 22px; border-radius: 50%; background: var(--border); display: grid; place-items: center; font-size: 12px; font-weight: 700; color: var(--text-2); }
.stepper li.current { color: var(--text); font-weight: 600; border-color: var(--primary); }
.stepper li.current span { background: var(--primary); color: #fff; }
.stepper li.done { border-color: var(--up); }
.stepper li.done span { background: var(--up); color: #fff; }
.checklist { list-style: none; padding: 0; margin: 0 0 18px; }
.checklist li { display: flex; align-items: center; gap: 8px; padding: 4px 0; font-size: 13px; }
.checklist .ok { color: var(--up); }
.checklist .fail { color: var(--down); font-weight: 600; }

/* ---------- 2FA ---------- */
.qr-box { display: flex; gap: 20px; align-items: center; margin: 12px 0 18px; flex-wrap: wrap; }
#qr img { display: block; border: 1px solid var(--border); border-radius: 8px; image-rendering: pixelated; }
.secret-key { font-size: 15px; letter-spacing: .06em; margin-top: 4px; word-break: break-all; }
.steps-list { padding-left: 18px; color: var(--text-2); }
.codes { display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px; list-style: none; padding: 14px; margin: 0 0 18px; background: var(--surface-2); border: 1px dashed #cbd5e1; border-radius: 8px; font-size: 15px; }
.pager { display: flex; gap: 12px; align-items: center; justify-content: center; }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .grid-main, .grid-2col { grid-template-columns: minmax(0, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .sidebar { transform: translateX(-100%); }
  body.sidebar-open .sidebar { transform: none; }
  body.sidebar-open .backdrop { display: block; position: fixed; inset: 0; background: rgba(2, 6, 23, .45); z-index: 25; }
  .main { margin-left: 0; }
  .menu-toggle { display: grid; }
  .user-meta { display: none; }
  .content, .topbar { padding-left: 16px; padding-right: 16px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .search input { width: 100%; }
  .filters, .search { width: 100%; }
  .kv { grid-template-columns: 1fr; gap: 2px; }
  .kv dd { margin-bottom: 8px; }
  .test-results li { grid-template-columns: 26px 1fr; }
  .test-results li > div { grid-column: 2; }
}

/* ---------- Step 2: monitoring ---------- */
.stats-5 { grid-template-columns: repeat(5, 1fr); }
.stat-value.small-value { font-size: 24px; }
.stat-value small { font-size: 14px; font-weight: 600; color: var(--muted); margin-left: 2px; }
.lvl-ok { color: var(--up); }
.lvl-warn { color: var(--warn); }
.lvl-crit { color: var(--down); }
.pad-head { padding: 16px 20px 0; }
.check.inline { margin: 0; white-space: nowrap; font-size: 13px; color: var(--text-2); }
.btn-primary-ghost { color: var(--primary); border-color: #bfdbfe; }
.btn-primary-ghost:hover { background: var(--primary-50); }

.range-picker { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.range-picker button { border: 0; background: var(--surface); padding: 6px 11px; font: 500 12.5px var(--font); color: var(--text-2); cursor: pointer; border-right: 1px solid var(--border); }
.range-picker button:last-child { border-right: 0; }
.range-picker button:hover { background: var(--surface-2); }
.range-picker button.active { background: var(--primary); color: #fff; }

.chart-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.chart-box h3 { font-size: 13px; color: var(--text-2); margin-bottom: 6px; }
.chart { min-height: 220px; width: 100%; position: relative; }
.chart.chart-tall { min-height: 320px; }
.chart-empty { display: grid; place-items: center; min-height: 200px; color: var(--muted); font-size: 13px; background: var(--surface-2); border: 1px dashed var(--border); border-radius: 8px; text-align: center; padding: 16px; }
.chart-empty.error { color: var(--down); }
.uplot { font-family: var(--font); }
.uplot .u-legend { font-size: 12px; text-align: left; margin-top: 4px; }
.uplot .u-legend .u-marker { border-radius: 3px; }
.stats-table { margin-top: 12px; }
.stats-table td, .stats-table th { padding: 7px 12px; }
.swatch { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 8px; vertical-align: middle; }

/* Interface table */
#if-table:not(.show-all) tr.row-unmonitored { display: none; }
#if-table tr.filtered-out { display: none !important; }
tr.row-unmonitored td { color: var(--muted); }
.util { display: flex; align-items: center; gap: 8px; min-width: 120px; }
.util .bar { flex: 1; background: #eef2f7; }
.bar.lvl-ok span { background: var(--up); }
.bar.lvl-warn span { background: #f59e0b; }
.bar.lvl-crit span { background: var(--down); }

@media (max-width: 1100px) {
  .stats-5 { grid-template-columns: repeat(3, 1fr); }
  .chart-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 860px) {
  .stats-5 { grid-template-columns: repeat(2, 1fr); }
  .range-picker button { padding: 6px 8px; }
}