@font-face { font-family: 'IBM Plex Sans Arabic'; src: url('assets/fonts/IBMPlexSansArabic-Regular.ttf') format('truetype'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'IBM Plex Sans Arabic'; src: url('assets/fonts/IBMPlexSansArabic-Medium.ttf') format('truetype'); font-weight: 500; font-display: swap; }
@font-face { font-family: 'IBM Plex Sans Arabic'; src: url('assets/fonts/IBMPlexSansArabic-SemiBold.ttf') format('truetype'); font-weight: 600; font-display: swap; }
@font-face { font-family: 'IBM Plex Sans Arabic'; src: url('assets/fonts/IBMPlexSansArabic-Bold.ttf') format('truetype'); font-weight: 700; font-display: swap; }
@font-face { font-family: 'Space Grotesk'; src: url('assets/fonts/SpaceGrotesk.ttf') format('truetype'); font-weight: 300 700; font-display: swap; }
@font-face { font-family: 'JetBrains Mono'; src: url('assets/fonts/JetBrainsMono.ttf') format('truetype'); font-weight: 100 800; font-display: swap; }

/* The Octopus tokens — Brand Guidelines §4 */
:root {
  --char: #111114; --iron: #26262B; --ash: #B4B4BD; --fog: #E7E7EA; --white: #FCFCFD;
  --spark-400: #9581EC; --spark-500: #6E56CF; --spark-600: #5E48BE; --spark-700: #4C39A0;

  --bg: var(--white);
  --bg-raised: #F3F3F5;
  --surface: var(--white);
  --text: var(--char);
  --text-muted: #5A5A63;
  --border: var(--fog);
  --accent: var(--spark-500);
  --accent-text: var(--spark-600);
  --accent-soft: rgba(110, 86, 207, .10);
  --on-accent: var(--white);
  --grid: rgba(17, 17, 20, .07);

  --ok: #16A34A; --warn: #CA8A04; --err: #DC2626; --info: #2563EB;
  /* chart series — validated: scripts/validate_palette.js (light, surface #FCFCFD) */
  --s-down: #6E56CF; --s-up: #00899F;

  /* Space Grotesk first: it has no Arabic glyphs, so Arabic falls through to Plex
     while every numeral and Latin run renders in Space Grotesk, as the spec requires. */
  --font: 'Space Grotesk', 'IBM Plex Sans Arabic', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  --r: 14px; --r-sm: 9px;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: var(--char);
  --bg-raised: var(--iron);
  --surface: #18181C;
  --text: var(--white);
  --text-muted: var(--ash);
  --border: var(--iron);
  --accent-text: var(--spark-400);
  --accent-soft: rgba(110, 86, 207, .16);
  --grid: rgba(252, 252, 253, .07);
  --ok: #3FCF8E; --warn: #E2A03F; --err: #E5484D; --info: #5B9DD9;
  /* validated: dark, surface #26262B */
  --s-down: #8B74E8; --s-up: #00A3BF;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 400 15px/1.6 var(--font);
  font-variant-numeric: tabular-nums;
  min-height: 100vh; min-height: 100dvh;
}
h1, h2, h3 { margin: 0; }
h1 { font-size: 24px; font-weight: 700; line-height: 1.3; letter-spacing: -0.01em; }
h2 { font-size: 15px; font-weight: 600; line-height: 1.4; }
button, input { font: inherit; color: inherit; }
.mono, code { font-family: var(--font-mono); font-size: 13px; direction: ltr; unicode-bidi: isolate; }
.latin, bdi { unicode-bidi: isolate; direction: ltr; }
.muted { color: var(--text-muted); }
.hint { color: var(--text-muted); font-size: 13px; line-height: 1.5; margin: 12px 0 0; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
svg { stroke-linecap: round; stroke-linejoin: round; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 20px;
  padding: 12px max(16px, env(safe-area-inset-right)) 12px max(16px, env(safe-area-inset-left));
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; direction: ltr; }
.logo { display: block; height: 26px; width: auto; }
.logo-light { display: none; }
:root[data-theme="light"] .logo-dark { display: none; }
:root[data-theme="light"] .logo-light { display: block; }
.product {
  font-weight: 500; font-size: 13px; color: var(--accent-text);
  border: 1px solid var(--accent); border-radius: 999px; padding: 1px 9px; letter-spacing: .02em;
}
.tabs { display: flex; gap: 4px; margin-inline-start: auto; }
.tabs button {
  display: flex; align-items: center; gap: 7px; border: 0; background: none; cursor: pointer;
  padding: 7px 12px; border-radius: 999px; color: var(--text-muted); font-weight: 500; font-size: 14px;
}
.tabs svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.tabs button:hover { color: var(--text); background: var(--bg-raised); }
.tabs button[aria-current="page"] { color: var(--on-accent); background: var(--accent); }
.top-actions { display: flex; align-items: center; gap: 8px; }
.icon-btn {
  width: 36px; height: 36px; display: grid; place-items: center; cursor: pointer;
  border: 1px solid var(--border); background: var(--surface); border-radius: 999px;
}
.icon-btn svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.pill {
  display: inline-flex; align-items: center; gap: 7px; font-size: 12px; font-weight: 600; letter-spacing: .02em;
  padding: 5px 11px; border-radius: 999px; background: var(--bg-raised); color: var(--text-muted); white-space: nowrap;
}
.pill i { width: 8px; height: 8px; border-radius: 50%; background: var(--text-muted); }
.pill.ok i { background: var(--ok); box-shadow: 0 0 0 0 var(--ok); animation: pulse 2s infinite; }
.pill.err i { background: var(--err); }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--ok) 60%, transparent); } 70% { box-shadow: 0 0 0 7px transparent; } 100% { box-shadow: 0 0 0 0 transparent; } }

/* ---------- layout ---------- */
main { max-width: 1120px; margin: 0 auto; padding: 20px 16px 40px; }
.view { display: none; flex-direction: column; gap: 16px; }
.view.active { display: flex; animation: rise .25s ease-out; }
@keyframes rise { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r); padding: 18px;
  min-width: 0;
}
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.page-head { margin: 4px 0 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.foot { text-align: center; color: var(--text-muted); font-size: 12px; padding: 0 16px 28px; }
.foot .latin { color: var(--accent-text); font-weight: 600; }

/* ---------- KPI tiles ---------- */
.kpis { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.kpi { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r); padding: 16px; min-width: 0; }
.kpi .label { font-size: 12px; font-weight: 600; letter-spacing: .02em; color: var(--text-muted); display: flex; align-items: center; gap: 6px; }
.kpi .value { font-size: 28px; font-weight: 700; letter-spacing: -0.02em; line-height: 1.2; margin-top: 6px; direction: ltr; text-align: right; white-space: nowrap; }
.kpi .value small { font-size: 14px; font-weight: 500; color: var(--text-muted); margin-inline-start: 4px; }
.kpi .sub { font-size: 13px; color: var(--text-muted); margin-top: 4px; }
.kpi .sub b { color: var(--text); font-weight: 600; }
.kpi.accent { background: var(--accent-soft); border-color: color-mix(in srgb, var(--accent) 35%, transparent); }
.dual { display: flex; gap: 14px; margin-top: 6px; }
.dual > div { min-width: 0; }
.dual .value { margin-top: 0; font-size: 22px; }
.dir { font-size: 12px; color: var(--text-muted); display: flex; align-items: center; gap: 5px; }
.dir::before { content: ''; width: 8px; height: 8px; border-radius: 2px; background: var(--s-down); }
.dir.up::before { background: var(--s-up); }
.meter { height: 8px; border-radius: 999px; background: var(--bg-raised); margin-top: 10px; overflow: hidden; }
.meter > span { display: block; height: 100%; background: var(--accent); border-radius: 999px; transition: width .4s; }
.meter > span.warn { background: var(--warn); }
.meter > span.err { background: var(--err); }

/* ---------- alerts ---------- */
.alerts { display: flex; flex-direction: column; gap: 8px; }
.alerts:empty { display: none; }
.alert {
  display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-radius: var(--r-sm);
  border: 1px solid var(--border); background: var(--surface); font-size: 14px;
}
.alert svg { width: 18px; height: 18px; flex: none; fill: none; stroke: currentColor; stroke-width: 2; }
.alert.error { border-color: color-mix(in srgb, var(--err) 45%, transparent); }
.alert.error svg { color: var(--err); }
.alert.warning { border-color: color-mix(in srgb, var(--warn) 45%, transparent); }
.alert.warning svg { color: var(--warn); }
.alert.info svg { color: var(--info); }
.alert button { margin-inline-start: auto; }

/* ---------- legends & charts ---------- */
.legend { display: flex; gap: 14px; font-size: 12px; color: var(--text-muted); }
.key { display: inline-flex; align-items: center; gap: 6px; }
.key::before { content: ''; width: 10px; height: 10px; border-radius: 3px; background: var(--s-down); }
.key.up::before { background: var(--s-up); }
.chart { position: relative; width: 100%; height: 220px; }
.chart svg { direction: ltr; display: block; width: 100%; height: 100%; overflow: visible; }
.chart .grid line { stroke: var(--grid); stroke-width: 1; }
.chart .axis text { fill: var(--text-muted); font-size: 11px; font-family: var(--font); }
.chart .s-down { stroke: var(--s-down); fill: var(--s-down); }
.chart .s-up { stroke: var(--s-up); fill: var(--s-up); }
.chart path.line { fill: none; stroke-width: 2; }
.chart path.area { stroke: none; opacity: .14; }
.chart rect.bar { stroke: var(--surface); stroke-width: 2; paint-order: stroke; }
.chart .hit { fill: transparent; cursor: crosshair; }
.chart .hit:hover + .hl, .chart .col:hover rect.bar { opacity: .82; }
.chart .cross { stroke: var(--text-muted); stroke-width: 1; stroke-dasharray: 3 3; }
.chart .dot { stroke: var(--surface); stroke-width: 2; }
.chart .ref { stroke: var(--text-muted); stroke-width: 1; stroke-dasharray: 2 4; opacity: .6; }
.chart .empty { fill: var(--text-muted); font-size: 13px; font-family: var(--font); }
.tooltip {
  position: fixed; z-index: 50; pointer-events: none; min-width: 140px;
  background: var(--bg-raised); color: var(--text); border: 1px solid var(--border);
  border-radius: var(--r-sm); padding: 8px 11px; font-size: 12px; line-height: 1.6;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .25);
}
.tooltip .t-head { color: var(--text-muted); margin-bottom: 2px; }
.tooltip .t-row { display: flex; justify-content: space-between; gap: 14px; }
.tooltip .t-row b { font-weight: 600; direction: ltr; }

/* ---------- facts ---------- */
.facts { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 9px 16px; font-size: 14px; }
.facts dt { color: var(--text-muted); }
.facts dd { margin: 0; text-align: left; overflow-wrap: anywhere; }
.facts.cols { grid-template-columns: auto 1fr auto 1fr; }

/* ---------- WAN ---------- */
.wan { padding: 12px 0; border-top: 1px solid var(--border); display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; }
.wan:first-child { border-top: 0; padding-top: 0; }
.wan .name { font-weight: 600; display: flex; align-items: center; gap: 8px; }
.wan .meta { font-size: 13px; color: var(--text-muted); grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 4px 16px; }
.badge {
  display: inline-flex; align-items: center; gap: 5px; font-size: 11px; font-weight: 600; letter-spacing: .02em;
  padding: 1px 8px; border-radius: 999px; background: var(--bg-raised); color: var(--text-muted); white-space: nowrap;
}
.badge.accent { background: var(--accent-soft); color: var(--accent-text); }
.badge.ok { color: var(--ok); background: color-mix(in srgb, var(--ok) 14%, transparent); }
.badge.err { color: var(--err); background: color-mix(in srgb, var(--err) 14%, transparent); }
.badge.warn { color: var(--warn); background: color-mix(in srgb, var(--warn) 14%, transparent); }
.badge.info { color: var(--info); background: color-mix(in srgb, var(--info) 14%, transparent); }
.badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; display: none; }
.badge.ok::before, .badge.err::before, .badge.warn::before { display: block; }

/* ---------- segmented ---------- */
.seg { display: inline-flex; background: var(--bg-raised); border-radius: 999px; padding: 3px; }
.seg button { border: 0; background: none; padding: 5px 13px; border-radius: 999px; cursor: pointer; font-size: 13px; color: var(--text-muted); font-weight: 500; }
.seg button[aria-pressed="true"] { background: var(--surface); color: var(--text); box-shadow: 0 1px 2px rgba(0, 0, 0, .15); }

/* ---------- devices ---------- */
.device-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 12px; }
.device { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r); padding: 14px 16px; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.device.off { opacity: .62; }
.device .top { display: flex; align-items: center; gap: 12px; }
.device .ico { width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent-text); flex: none; position: relative; }
.device .ico svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.device .ico i { position: absolute; bottom: -2px; left: -2px; width: 11px; height: 11px; border-radius: 50%; background: var(--text-muted); border: 2px solid var(--surface); }
.device.on .ico i { background: var(--ok); }
.device .who { min-width: 0; flex: 1; }
.device .nm { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: flex; align-items: center; gap: 8px; }
.device .nm span { overflow: hidden; text-overflow: ellipsis; }
.device .addr { font-size: 12px; color: var(--text-muted); display: flex; gap: 10px; flex-wrap: wrap; }
.device .addr .mono { font-size: 12px; }
.device .edit { border: 0; background: none; cursor: pointer; color: var(--text-muted); padding: 6px; border-radius: 8px; }
.device .edit:hover { color: var(--text); background: var(--bg-raised); }
.device .edit svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; display: block; }
.device .nums { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; font-size: 12px; color: var(--text-muted); }
.device .nums b { display: block; color: var(--text); font-size: 15px; font-weight: 600; direction: ltr; text-align: right; }
.device .bar { display: flex; gap: 2px; height: 6px; border-radius: 999px; overflow: hidden; background: var(--bg-raised); }
.device .bar span { display: block; height: 100%; }
.device .bar .d { background: var(--s-down); }
.device .bar .u { background: var(--s-up); }

/* ---------- share list ---------- */
.share-list { display: flex; flex-direction: column; gap: 10px; }
.share { display: grid; grid-template-columns: minmax(90px, 180px) 1fr auto; gap: 12px; align-items: center; font-size: 13px; }
.share .nm { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.share .track { height: 10px; display: flex; gap: 2px; direction: rtl; }
.share .track span { display: block; height: 100%; border-radius: 3px; min-width: 2px; }
.share .track .d { background: var(--s-down); }
.share .track .u { background: var(--s-up); }
.share .v { direction: ltr; font-weight: 600; min-width: 70px; text-align: left; }

select {
  font: inherit; font-size: 13px; color: var(--text); background: var(--bg-raised);
  border: 1px solid var(--border); border-radius: 999px; padding: 4px 12px;
}
.month-total { font-size: 13px; color: var(--text-muted); margin: -4px 0 14px; }
.month-total b { color: var(--text); font-weight: 600; }

/* ---------- table view ---------- */
.table-view { margin-top: 12px; font-size: 13px; }
.table-view summary { cursor: pointer; color: var(--accent-text); font-weight: 500; }
.table-view table { width: 100%; border-collapse: collapse; margin-top: 10px; }
.table-view th, .table-view td { padding: 6px 8px; border-bottom: 1px solid var(--border); text-align: right; }
.table-view th { color: var(--text-muted); font-weight: 600; font-size: 12px; }
.table-view td.n { direction: ltr; text-align: left; }

/* ---------- forms ---------- */
.form { display: flex; flex-direction: column; gap: 12px; max-width: 560px; width: 100%; }
.form h2 { margin-top: 4px; }
.form label { display: flex; flex-direction: column; gap: 5px; font-size: 14px; font-weight: 500; }
.form label small { color: var(--text-muted); font-weight: 400; font-size: 12px; }
.form input[type=number], .form input:not([type]) {
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--r-sm);
  padding: 9px 12px; direction: ltr; text-align: right; outline: none;
}
.form input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.form fieldset { border: 1px solid var(--border); border-radius: var(--r-sm); padding: 10px 14px; margin: 0; }
.form legend { font-size: 13px; color: var(--text-muted); padding: 0 6px; }
.checks { display: flex; flex-wrap: wrap; gap: 8px 18px; }
.form label.check, .checks label { flex-direction: row; align-items: center; gap: 8px; font-weight: 400; }
input[type=checkbox] { accent-color: var(--accent); width: 16px; height: 16px; }
.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.btn {
  border: 1px solid var(--border); background: var(--bg-raised); padding: 8px 18px; border-radius: 999px;
  cursor: pointer; font-weight: 600; font-size: 14px;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn.primary:hover { background: var(--spark-600); }
.btn.primary:active { background: var(--spark-700); }
.btn.sm { padding: 4px 12px; font-size: 12px; }
.saved { font-size: 13px; color: var(--ok); }
.saved.err { color: var(--err); }
#settingsForm, #calibrateForm, .view[data-view=settings] .card { align-self: stretch; max-width: none; }
.view[data-view=settings] { display: none; }
.view[data-view=settings].active { display: grid; grid-template-columns: 1fr 1fr; align-items: start; }
.view[data-view=settings] .page-head { grid-column: 1 / -1; }
.view[data-view=settings] #settingsForm { grid-row: span 3; }
dialog {
  border: 1px solid var(--border); border-radius: var(--r); background: var(--surface); color: var(--text);
  padding: 20px; width: min(420px, calc(100vw - 32px));
}
dialog::backdrop { background: rgba(0, 0, 0, .5); backdrop-filter: blur(2px); }

/* ---------- phone ---------- */
@media (max-width: 900px) {
  .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-2, .view[data-view=settings].active { grid-template-columns: 1fr; }
  .view[data-view=settings] #settingsForm { grid-row: auto; }
  .facts.cols { grid-template-columns: auto 1fr; }
}
@media (max-width: 760px) {
  /* backdrop-filter would make the header the containing block of the fixed bottom nav */
  .topbar { gap: 10px; backdrop-filter: none; -webkit-backdrop-filter: none; background: var(--bg); }
  .tabs {
    position: fixed; bottom: 0; left: 0; right: 0; z-index: 20; margin: 0;
    justify-content: space-around; gap: 0;
    padding: 6px 6px calc(6px + env(safe-area-inset-bottom));
    background: color-mix(in srgb, var(--surface) 92%, transparent);
    backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
    border-top: 1px solid var(--border);
  }
  .tabs button { flex-direction: column; gap: 2px; font-size: 11px; padding: 6px 4px; flex: 1; border-radius: 12px; }
  .tabs svg { width: 21px; height: 21px; }
  .tabs button[aria-current="page"] { background: var(--accent-soft); color: var(--accent-text); }
  .top-actions { margin-inline-start: auto; }
  main { padding-bottom: 96px; }
  .foot { padding-bottom: 96px; }
  .kpi .value { font-size: 23px; }
  .dual .value { font-size: 18px; }
  .card { padding: 14px; }
  .chart { height: 190px; }
  .device-list { grid-template-columns: 1fr; }
  .share { grid-template-columns: minmax(70px, 110px) 1fr auto; }
}
@media (max-width: 400px) {
  .product { display: none; }
  .kpi { padding: 12px; }
  .kpi .value { font-size: 20px; }
  .dual { gap: 10px; }
}