/* uiui — a dark console design system.
   Plain CSS, no build step. Every class is prefixed `ui-`.
   Tokens double as shadcn/ui variables so the theme drops into Tailwind projects too. */

/* ---------- 1. Tokens ---------- */
:root {
  /* surfaces (darkest → lightest) */
  --ui-bg: #131416;        /* page, sidebars, table area */
  --ui-surface: #1c1e21;   /* cards inside drawers, selects, drawer body */
  --ui-raised: #282b2f;    /* top bar, chips, search inputs, selected nav, hovered row */
  --ui-input: #25272a;     /* text inputs */
  --ui-border: #232526;    /* hairline row/card borders */
  --ui-border-2: #34383d;  /* stronger borders (buttons, chips, tiles) */
  --ui-selected: #18212e;  /* selected table row */
  --ui-overlay: rgba(0, 0, 0, .55);

  /* text */
  --ui-text: #dee0e3;
  --ui-text-2: #929497;
  --ui-text-3: #6b6e72;
  --ui-text-bright: #f9fafa;

  /* accent */
  --ui-accent: #4797ff;
  --ui-accent-hover: #68aaff;
  --ui-accent-dim: #386197;   /* active segmented tab */
  --ui-accent-deep: #05254d;  /* active rail icon halo, timeline band */
  --ui-accent-ghost: rgba(71, 151, 255, .12);

  /* semantic */
  --ui-green: #37be60;
  --ui-green-text: #2fa351;
  --ui-lime: #b0d322;
  --ui-yellow: #dfc116;
  --ui-orange: #e79613;
  --ui-red: #ee6368;
  --ui-purple: #b47cde;
  --ui-cyan: #5aa9c9;
  --ui-gray: #50565e;

  /* matrix / policy cells */
  --ui-allow: #42674f;
  --ui-block: #755b5e;
  --ui-return: #2a4c5b;

  /* shape */
  --ui-radius-sm: 4px;
  --ui-radius: 6px;
  --ui-radius-lg: 8px;

  /* type */
  --ui-font: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --ui-fs: 13px;
  --ui-fs-sm: 12px;
  --ui-fs-xs: 11px;
  --ui-fs-lg: 14px;
  --ui-fs-xl: 16px;

  /* layout */
  --ui-topbar-h: 48px;
  --ui-rail-w: 48px;
  --ui-sidebar-w: 260px;
  --ui-drawer-w: 360px;
  --ui-row-h: 31px;

  /* shadcn/ui compatible aliases */
  --background: var(--ui-bg);
  --foreground: var(--ui-text);
  --card: var(--ui-surface);
  --card-foreground: var(--ui-text);
  --popover: var(--ui-raised);
  --popover-foreground: var(--ui-text);
  --primary: var(--ui-accent);
  --primary-foreground: #ffffff;
  --secondary: var(--ui-raised);
  --secondary-foreground: var(--ui-text);
  --muted: var(--ui-surface);
  --muted-foreground: var(--ui-text-2);
  --accent: var(--ui-raised);
  --accent-foreground: var(--ui-text);
  --destructive: var(--ui-red);
  --destructive-foreground: #ffffff;
  --border: var(--ui-border-2);
  --input: var(--ui-input);
  --ring: var(--ui-accent);
  --radius: var(--ui-radius-sm);
  --chart-1: var(--ui-cyan);
  --chart-2: var(--ui-purple);
  --chart-3: var(--ui-green);
  --chart-4: var(--ui-orange);
  --chart-5: var(--ui-accent);
  color-scheme: dark;
}

/* Light theme. Toggle with data-theme="light" on `.ui` (or any ancestor) or class `light`. */
.ui[data-theme="light"], [data-theme="light"] .ui, .ui.light {
  --ui-bg: #f4f5f7;
  --ui-surface: #ffffff;
  --ui-raised: #e9ebee;
  --ui-input: #ffffff;
  --ui-border: #e3e5e9;
  --ui-border-2: #cbd0d6;
  --ui-selected: #e5efff;
  --ui-overlay: rgba(20, 24, 30, .35);
  --ui-text: #212327;
  --ui-text-2: #6b7280;
  --ui-text-3: #9aa1aa;
  --ui-text-bright: #0d0f12;
  --ui-accent: #006fff;
  --ui-accent-hover: #2a86ff;
  --ui-accent-dim: #3f7fd6;
  --ui-accent-deep: #dbe8ff;
  --ui-accent-ghost: rgba(0, 111, 255, .1);
  --ui-green: #2fa351;
  --ui-green-text: #1f8a41;
  --ui-lime: #8ea81a;
  --ui-yellow: #c9a800;
  --ui-orange: #d9810c;
  --ui-red: #dc3e45;
  --ui-purple: #8e56c2;
  --ui-cyan: #2f8fb5;
  --ui-gray: #b9c0c9;
  --ui-allow: #cfead8;
  --ui-block: #f3d5d8;
  --ui-return: #d4e5ee;
  color-scheme: light;
}
.ui[data-theme="light"] .ui-matrix td.allow, .ui.light .ui-matrix td.allow { border-color: #9fcdb0; }
.ui[data-theme="light"] .ui-matrix td.block, .ui.light .ui-matrix td.block { border-color: #e2aab0; }
.ui[data-theme="light"] .ui-matrix td.return, .ui.light .ui-matrix td.return { border-color: #a9c8d8; }
.ui[data-theme="light"] .ui-matrix td.block .ui-n, .ui.light .ui-matrix td.block .ui-n { color: var(--ui-red); }
.ui[data-theme="light"] .ui-buckets > div > b, .ui.light .ui-buckets > div > b { color: #fff; }
.ui[data-theme="light"] .ui-input, .ui[data-theme="light"] .ui-select, .ui[data-theme="light"] .ui-textarea,
.ui.light .ui-input, .ui.light .ui-select, .ui.light .ui-textarea { border: 1px solid var(--ui-border-2); }
.ui[data-theme="light"] .ui-heat, .ui.light .ui-heat { background: #cfe8d6; }
.ui[data-theme="light"] .ui-channels .ui-ch.na, .ui.light .ui-channels .ui-ch.na { background: #e3d597; }
.ui[data-theme="light"] .ui-channels .ui-ch.ex, .ui.light .ui-channels .ui-ch.ex { background: #efbcbc; }
.ui[data-theme="light"] .ui-port, .ui.light .ui-port { color: #fff; }

/* ---------- 2. Base ---------- */
.ui, .ui * , .ui *::before, .ui *::after { box-sizing: border-box; }
.ui {
  background: var(--ui-bg);
  color: var(--ui-text);
  font-family: var(--ui-font);
  font-size: var(--ui-fs);
  line-height: 1.4;
  font-feature-settings: "tnum" 1, "zero" 1, "cv11" 1; /* tabular figures + slashed zero, a signature of the console look */
  -webkit-font-smoothing: antialiased;
}
.ui a { color: var(--ui-accent); text-decoration: none; }
.ui a:hover { color: var(--ui-accent-hover); }
.ui :focus-visible { outline: 2px solid var(--ui-accent); outline-offset: 1px; border-radius: var(--ui-radius-sm); }
.ui ::selection { background: var(--ui-accent-dim); color: #fff; }
.ui ::-webkit-scrollbar { width: 8px; height: 8px; }
.ui ::-webkit-scrollbar-thumb { background: var(--ui-border-2); border-radius: 8px; }
.ui ::-webkit-scrollbar-track { background: transparent; }

.ui-icon { width: 16px; height: 16px; flex: none; stroke: currentColor; fill: none; stroke-width: 1.75; vertical-align: -3px; }
.ui-icon.sm { width: 14px; height: 14px; }
.ui-icon.lg { width: 20px; height: 20px; }
.ui-icon.xl { width: 28px; height: 28px; }

.ui-muted { color: var(--ui-text-2); }
.ui-dim { color: var(--ui-text-3); }
.ui-bright { color: var(--ui-text-bright); }
.ui-green { color: var(--ui-green-text); }
.ui-lime { color: var(--ui-lime); }
.ui-yellow { color: var(--ui-yellow); }
.ui-orange { color: var(--ui-orange); }
.ui-red { color: var(--ui-red); }
.ui-purple { color: var(--ui-purple); }
.ui-accent { color: var(--ui-accent); }
.ui-num { font-feature-settings: "tnum" 1, "zero" 1; }
.ui-sm { font-size: var(--ui-fs-sm); }
.ui-xs { font-size: var(--ui-fs-xs); }
.ui-strong { font-weight: 600; color: var(--ui-text-bright); }
.ui-truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ui-row { display: flex; align-items: center; gap: 8px; }
.ui-between { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.ui-stack { display: flex; flex-direction: column; gap: 8px; }
.ui-grow { flex: 1 1 auto; min-width: 0; }
.ui-divider { height: 1px; background: var(--ui-border); margin: 10px 0; border: 0; }
.ui-vdivider { width: 1px; align-self: stretch; background: var(--ui-border-2); }

/* down / up throughput arrows */
.ui-down { color: var(--ui-accent); }
.ui-up { color: var(--ui-purple); }
.ui-down::before { content: "↓ "; }
.ui-up::before { content: "↑ "; }

/* ---------- 3. App shell ---------- */
.ui-app {
  display: grid;
  grid-template-rows: var(--ui-topbar-h) minmax(0, 1fr);
  grid-template-columns: var(--ui-rail-w) auto 1fr auto;
  grid-template-areas: "top top top top" "rail side main drawer";
  height: 100vh;
  overflow: hidden;
}
.ui-topbar { grid-area: top; display: flex; align-items: stretch; background: var(--ui-raised); border-bottom: 1px solid var(--ui-border); }
.ui-topbar .ui-brand { flex: 1; display: flex; align-items: center; justify-content: center; color: var(--ui-text-3); font-weight: 600; letter-spacing: .02em; }
.ui-topbar-tab {
  display: flex; align-items: center; gap: 8px; padding: 0 18px; color: var(--ui-text-2); font-weight: 500;
  border-right: 1px solid var(--ui-border); cursor: pointer; white-space: nowrap;
}
.ui-topbar-tab.is-active { background: var(--ui-bg); color: var(--ui-accent); }
.ui-topbar-tab.is-active .ui-icon { color: var(--ui-accent); }
.ui-topbar-tab .ui-dot { margin-right: 2px; }
.ui-topbar-actions { display: flex; align-items: center; gap: 6px; padding: 0 14px; }

.ui-rail { grid-area: rail; display: flex; flex-direction: column; align-items: center; padding: 10px 0; gap: 4px; background: var(--ui-bg); border-right: 1px solid var(--ui-border); }
.ui-rail .ui-spacer { flex: 1; }
.ui-rail-btn {
  width: 36px; height: 36px; display: grid; place-items: center; border-radius: var(--ui-radius);
  color: var(--ui-text-2); background: transparent; border: 0; cursor: pointer;
}
.ui-rail-btn:hover { color: var(--ui-text-bright); background: var(--ui-raised); }
.ui-rail-btn.is-active { color: var(--ui-accent); background: var(--ui-accent-deep); }
.ui-rail-btn .ui-icon { width: 20px; height: 20px; stroke-width: 1.5; }

.ui-sidebar { grid-area: side; width: var(--ui-sidebar-w); min-height: 0; display: flex; flex-direction: column; background: var(--ui-bg); border-right: 1px solid var(--ui-border); overflow: hidden auto; position: relative; }
.ui-sidebar-body { min-height: 0; flex: 1; overflow: auto; padding: 10px 12px; }
.ui-sidebar-foot { padding: 10px 12px; border-top: 1px solid var(--ui-border); display: flex; flex-direction: column; gap: 8px; }
.ui-sidebar .ui-collapse { position: absolute; right: -1px; top: 18px; }
.ui-collapse { width: 18px; height: 22px; display: grid; place-items: center; background: var(--ui-raised); color: var(--ui-text-2); border: 1px solid var(--ui-border-2); border-right: 0; border-radius: 4px 0 0 4px; cursor: pointer; }

.ui-main { grid-area: main; overflow: auto; min-width: 0; min-height: 0; }
.ui-drawer { grid-area: drawer; width: var(--ui-drawer-w); min-height: 0; display: flex; flex-direction: column; background: var(--ui-bg); border-left: 1px solid var(--ui-border); overflow: hidden; }
.ui-drawer-head { display: flex; align-items: center; justify-content: center; position: relative; height: 44px; padding: 0 44px; font-weight: 600; color: var(--ui-text-bright); border-bottom: 1px solid var(--ui-border); flex: none; }
.ui-drawer-head .ui-btn.icon { position: absolute; right: 8px; top: 7px; }
.ui-drawer-head .ui-btn.icon.left { right: auto; left: 8px; }
.ui-drawer-body { flex: 1; min-height: 0; overflow: auto; padding: 12px; display: flex; flex-direction: column; gap: 12px; }
.ui-drawer-foot { padding: 12px; border-top: 1px solid var(--ui-border); display: flex; gap: 8px; justify-content: flex-end; }

/* content padding helper */
.ui-page { padding: 14px 18px; }

/* ---------- 4. Buttons ---------- */
.ui-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: 32px; padding: 0 14px; border-radius: var(--ui-radius-sm);
  font: inherit; font-weight: 500; line-height: 1; white-space: nowrap; cursor: pointer;
  color: var(--ui-text); background: var(--ui-raised); border: 1px solid transparent;
}
.ui-btn:hover { background: var(--ui-border-2); }
.ui-btn:disabled, .ui-btn[aria-disabled="true"] { opacity: .45; cursor: not-allowed; }
.ui-btn.primary { background: var(--ui-accent); color: #fff; }
.ui-btn.primary:hover { background: var(--ui-accent-hover); }
.ui-btn.outline { background: transparent; border-color: var(--ui-accent); color: var(--ui-accent); }
.ui-btn.outline:hover { background: var(--ui-accent-ghost); }
.ui-btn.ghost { background: transparent; color: var(--ui-accent); padding: 0 6px; }
.ui-btn.ghost:hover { background: var(--ui-accent-ghost); }
.ui-btn.danger { background: transparent; color: var(--ui-red); padding: 0 6px; }
.ui-btn.danger:hover { background: rgba(238, 99, 104, .12); }
.ui-btn.icon { width: 30px; height: 30px; padding: 0; background: transparent; color: var(--ui-text-2); }
.ui-btn.icon:hover { background: var(--ui-raised); color: var(--ui-text-bright); }
.ui-btn.sm { height: 26px; padding: 0 10px; font-size: var(--ui-fs-sm); }
.ui-btn.block { width: 100%; }
.ui-btn.link { background: transparent; color: var(--ui-accent); height: auto; padding: 0; font-weight: 400; border: 0; }
.ui-btn.link:hover { color: var(--ui-accent-hover); }
.ui-btn.link.muted { color: var(--ui-text-3); }

/* "Create New | Manage" action rows */
.ui-links { display: flex; align-items: center; gap: 10px; padding: 10px 0 2px; }
.ui-links > * + *::before { content: ""; display: inline-block; width: 1px; height: 14px; background: var(--ui-border-2); margin-right: 10px; vertical-align: -2px; }
.ui-links.stack { flex-direction: column; align-items: flex-start; gap: 10px; padding: 0; }
.ui-links.stack > * + *::before { display: none; }

/* ---------- 5. Form controls ---------- */
.ui-field { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; }
.ui-label { font-size: var(--ui-fs-xs); color: var(--ui-text-2); display: inline-flex; align-items: center; gap: 4px; }
.ui-help { font-size: var(--ui-fs-xs); color: var(--ui-text-3); }
.ui-help.error { color: var(--ui-red); }

.ui-input, .ui-select, .ui-textarea {
  width: 100%; height: 32px; padding: 0 10px; border-radius: var(--ui-radius-sm);
  background: var(--ui-input); color: var(--ui-text-bright); border: 1px solid transparent; font: inherit;
}
.ui-textarea { height: auto; min-height: 64px; padding: 8px 10px; resize: vertical; }
.ui-input::placeholder, .ui-textarea::placeholder { color: var(--ui-text-3); }
.ui-input:hover, .ui-select:hover, .ui-textarea:hover { background: var(--ui-raised); }
.ui-input:focus, .ui-select:focus, .ui-textarea:focus { outline: none; border-color: var(--ui-accent); background: var(--ui-input); }
.ui-input:disabled, .ui-select:disabled { color: var(--ui-text-3); cursor: not-allowed; background: var(--ui-surface); }
.ui-select {
  appearance: none; padding-right: 28px; cursor: pointer; background-color: var(--ui-surface);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23929497' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 8px center;
}
.ui-input.sm, .ui-select.sm { height: 26px; font-size: var(--ui-fs-sm); }

/* input with leading icon or trailing addon */
.ui-input-wrap { position: relative; display: flex; align-items: center; }
.ui-input-wrap > .ui-icon { position: absolute; left: 9px; color: var(--ui-text-3); pointer-events: none; }
.ui-input-wrap > .ui-input { padding-left: 30px; }
.ui-input-wrap > .ui-addon { position: absolute; right: 6px; display: flex; align-items: center; gap: 4px; color: var(--ui-text-2); font-size: var(--ui-fs-sm); }
.ui-input-wrap > .ui-addon .ui-btn.icon { width: 24px; height: 24px; }
.ui-search .ui-input { background: var(--ui-raised); }
.ui-search .ui-input:focus { background: var(--ui-input); }

/* number stepper */
.ui-stepper { display: inline-flex; align-items: stretch; height: 32px; background: var(--ui-input); border-radius: var(--ui-radius-sm); border: 1px solid transparent; }
.ui-stepper:focus-within { border-color: var(--ui-accent); }
.ui-stepper input { width: 64px; background: transparent; border: 0; color: var(--ui-text-bright); font: inherit; padding: 0 10px; outline: none; -moz-appearance: textfield; }
.ui-stepper input::-webkit-inner-spin-button { display: none; }
.ui-stepper .ui-unit { display: flex; align-items: center; padding-right: 8px; color: var(--ui-text-2); }
.ui-stepper .ui-arrows { display: flex; flex-direction: column; justify-content: center; padding: 0 6px; color: var(--ui-text-2); }
.ui-stepper .ui-arrows button { background: none; border: 0; color: inherit; padding: 0; height: 12px; cursor: pointer; display: grid; place-items: center; }
.ui-stepper .ui-arrows .ui-icon { width: 12px; height: 12px; }

/* checkbox & radio */
.ui-check, .ui-radio { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; user-select: none; color: var(--ui-text); }
.ui-check input, .ui-radio input { appearance: none; margin: 0; width: 16px; height: 16px; flex: none; border: 1.5px solid var(--ui-text-2); background: transparent; cursor: pointer; display: grid; place-items: center; }
.ui-check input { border-radius: 3px; }
.ui-radio input { border-radius: 50%; }
.ui-check input:hover, .ui-radio input:hover { border-color: var(--ui-text-bright); }
.ui-check input:checked { background: var(--ui-accent); border-color: var(--ui-accent); }
.ui-check input:checked::after { content: ""; width: 9px; height: 5px; border: 2px solid #fff; border-top: 0; border-right: 0; transform: translateY(-1px) rotate(-45deg); }
.ui-check input:indeterminate { background: var(--ui-accent); border-color: var(--ui-accent); }
.ui-check input:indeterminate::after { content: ""; width: 8px; height: 2px; background: #fff; }
.ui-radio input:checked { border-color: var(--ui-accent); }
.ui-radio input:checked::after { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--ui-accent); }
.ui-check input:disabled, .ui-radio input:disabled { opacity: .4; cursor: not-allowed; }
.ui-check:has(input:disabled), .ui-radio:has(input:disabled) { color: var(--ui-text-3); cursor: not-allowed; }
.ui-check .ui-count, .ui-radio .ui-count { color: var(--ui-text-2); }
.ui-check .ui-count::before { content: "("; } .ui-check .ui-count::after { content: ")"; }
.ui-radio .ui-count::before { content: "("; } .ui-radio .ui-count::after { content: ")"; }
.ui-check-group, .ui-radio-group { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.ui-check-group.column, .ui-radio-group.column { flex-direction: column; gap: 8px; }

/* switch */
.ui-switch { position: relative; display: inline-flex; align-items: center; gap: 8px; cursor: pointer; }
.ui-switch input { appearance: none; margin: 0; width: 32px; height: 18px; border-radius: 9px; background: var(--ui-gray); position: relative; cursor: pointer; transition: background .15s; flex: none; }
.ui-switch input::after { content: ""; position: absolute; top: 2px; left: 2px; width: 14px; height: 14px; border-radius: 50%; background: #fff; transition: transform .15s; }
.ui-switch input:checked { background: var(--ui-accent); }
.ui-switch input:checked::after { transform: translateX(14px); }
.ui-switch input:disabled { opacity: .4; }
.ui-switch.between { width: 100%; justify-content: space-between; }
.ui-switch .ui-switch-label { font-size: var(--ui-fs-xs); font-weight: 600; color: var(--ui-text); }

/* segmented control (Auto | Manual, 1h 1D 1W 1M, 2.4 GHz | 5 GHz) */
.ui-seg { display: inline-flex; background: var(--ui-surface); border-radius: var(--ui-radius-sm); padding: 2px; gap: 2px; }
.ui-seg > * {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; height: 26px; padding: 0 12px;
  border-radius: 3px; border: 0; background: transparent; color: var(--ui-text-2); font: inherit; font-weight: 500; cursor: pointer; white-space: nowrap;
}
.ui-seg > *:hover { color: var(--ui-text-bright); }
.ui-seg > .is-active { background: var(--ui-raised); color: var(--ui-accent); }
.ui-seg.solid > .is-active { background: var(--ui-accent-dim); color: #fff; }
.ui-seg.block { display: flex; } .ui-seg.block > * { flex: 1; }
.ui-seg.bare { background: transparent; padding: 0; gap: 0; }
.ui-seg.bare > * { padding: 0 8px; }
.ui-seg.bare > * + * { border-left: 1px solid var(--ui-border-2); border-radius: 0; }
.ui-seg.bare > .is-active { background: transparent; }
.ui-seg.sm > * { height: 22px; padding: 0 8px; font-size: var(--ui-fs-sm); }

/* toggle chip group (channel widths 20 40 80 160, TX power Auto High …) */
.ui-chips { display: inline-flex; flex-wrap: wrap; gap: 6px; }
.ui-chips > * {
  display: inline-flex; align-items: center; height: 30px; padding: 0 10px; border-radius: var(--ui-radius-sm);
  background: var(--ui-surface); border: 1px solid var(--ui-border-2); color: var(--ui-text); font: inherit; cursor: pointer;
}
.ui-chips > *:hover { border-color: var(--ui-text-2); }
.ui-chips > .is-active { border-color: var(--ui-accent); color: var(--ui-accent); }
.ui-chips > :disabled, .ui-chips > .is-disabled { color: var(--ui-text-3); cursor: not-allowed; }

/* range slider */
.ui-slider { width: 100%; }
.ui-slider input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 16px; background: transparent; margin: 0; cursor: pointer; }
.ui-slider input[type="range"]::-webkit-slider-runnable-track { height: 3px; border-radius: 2px; background: linear-gradient(to right, var(--ui-accent) var(--ui-fill, 0%), var(--ui-border-2) var(--ui-fill, 0%)); }
.ui-slider input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 12px; height: 12px; margin-top: -4.5px; border-radius: 50%; background: #fff; border: 0; box-shadow: 0 0 0 1px rgba(0,0,0,.3); }
.ui-slider input[type="range"]::-moz-range-track { height: 3px; border-radius: 2px; background: var(--ui-border-2); }
.ui-slider input[type="range"]::-moz-range-progress { height: 3px; background: var(--ui-accent); }
.ui-slider input[type="range"]::-moz-range-thumb { width: 12px; height: 12px; border-radius: 50%; background: #fff; border: 0; }
.ui-slider .ui-ticks { display: flex; justify-content: space-between; font-size: var(--ui-fs-xs); color: var(--ui-text-2); margin-top: 2px; }
.ui-slider .ui-ticks.marks span::before { content: ""; display: block; width: 4px; height: 4px; border-radius: 50%; background: var(--ui-text-3); margin: -6px auto 4px; }
.ui-slider-head { display: flex; justify-content: flex-end; font-size: var(--ui-fs-xs); color: var(--ui-text-2); }

/* the little ⓘ */
.ui-info { display: inline-grid; place-items: center; width: 14px; height: 14px; border-radius: 50%; border: 1.25px solid var(--ui-accent); color: var(--ui-accent); font-size: 9px; font-weight: 700; font-style: normal; line-height: 1; cursor: help; vertical-align: -2px; margin-left: 3px; }
.ui-info::before { content: "i"; }

/* settings-style form rows: label left, control right */
.ui-form-row { display: grid; grid-template-columns: 240px 1fr; gap: 10px 20px; align-items: start; padding: 10px 0; }
.ui-form-row > .ui-form-label { color: var(--ui-text); padding-top: 6px; display: flex; align-items: center; gap: 2px; }
.ui-form-row > .ui-form-label.top { padding-top: 0; }
.ui-form-row .ui-sub { display: flex; flex-direction: column; gap: 10px; }
.ui-form-row .ui-sub-title { color: var(--ui-text); }
.ui-form-row .ui-label { margin-top: 4px; }

/* quick-action tiles (Ping Test / Block App) */
.ui-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.ui-action { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; flex: 1 1 0; min-width: 60px; height: 56px; border-radius: var(--ui-radius); border: 1px solid var(--ui-border-2); background: var(--ui-surface); color: var(--ui-text); font-size: var(--ui-fs-xs); cursor: pointer; }
.ui-action:hover { border-color: var(--ui-text-2); }
.ui-action .ui-icon { width: 18px; height: 18px; }

/* ---------- 6. Chips, badges, status ---------- */
.ui-chip { display: inline-flex; align-items: center; gap: 4px; height: 20px; padding: 0 6px; border-radius: 3px; background: var(--ui-raised); color: var(--ui-text); font-size: var(--ui-fs-sm); white-space: nowrap; }
.ui-chip.blue { background: var(--ui-accent-ghost); color: var(--ui-accent); }
.ui-chip.green { background: rgba(55,190,96,.15); color: var(--ui-green); }
.ui-chip.red { background: rgba(238,99,104,.15); color: var(--ui-red); }
.ui-chip.yellow { background: rgba(223,193,22,.15); color: var(--ui-yellow); }
.ui-chip.outline { background: transparent; border: 1px solid var(--ui-border-2); }
.ui-chip .ui-x { color: var(--ui-text-2); cursor: pointer; margin-left: 2px; }
.ui-chip .ui-x:hover { color: var(--ui-text-bright); }
.ui-chip-row { display: inline-flex; flex-wrap: wrap; gap: 4px; }
.ui-badge { display: inline-flex; align-items: center; height: 14px; padding: 0 6px; border-radius: 7px; background: var(--ui-accent-dim); color: #fff; font-size: 9px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }

.ui-dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--ui-green); flex: none; }
.ui-dot.off, .ui-dot.gray { background: var(--ui-text-3); }
.ui-dot.red { background: var(--ui-red); }
.ui-dot.yellow { background: var(--ui-yellow); }
.ui-dot.blue { background: var(--ui-accent); }
.ui-dot.lg { width: 8px; height: 8px; }

/* risk / severity meters: 3 or 4 dashes */
.ui-meter { display: inline-flex; gap: 2px; vertical-align: middle; }
.ui-meter i { display: block; width: 6px; height: 3px; border-radius: 1px; background: var(--ui-border-2); }
.ui-meter[data-level="1"] i:nth-child(-n+1), .ui-meter[data-level="2"] i:nth-child(-n+2), .ui-meter[data-level="3"] i:nth-child(-n+3), .ui-meter[data-level="4"] i:nth-child(-n+4) { background: var(--ui-c, var(--ui-green)); }
.ui-meter[data-level="1"] { --ui-c: var(--ui-green); }
.ui-meter[data-level="2"] { --ui-c: var(--ui-yellow); }
.ui-meter[data-level="3"] { --ui-c: var(--ui-orange); }
.ui-meter[data-level="4"] { --ui-c: var(--ui-red); }
.ui-meter.filter { padding: 4px 10px; border-radius: var(--ui-radius-sm); border: 1px solid var(--ui-border-2); background: var(--ui-surface); cursor: pointer; }
.ui-meter.filter.is-active { border-color: var(--ui-accent); }

.ui-avatar { display: inline-grid; place-items: center; width: 22px; height: 22px; border-radius: 4px; background: var(--ui-c, var(--ui-orange)); color: #fff; font-size: 10px; font-weight: 700; }
.ui-avatar.round { border-radius: 50%; }
.ui-avatar.lg { width: 32px; height: 32px; font-size: 13px; }

/* device type glyph used in name cells */
.ui-device { display: inline-flex; align-items: center; gap: 8px; min-width: 0; }
.ui-device .ui-icon { color: var(--ui-text-2); width: 16px; height: 16px; }
.ui-device .ui-suffix { color: var(--ui-text-3); }

/* ---------- 7. Tables ---------- */
.ui-table-wrap { overflow: auto; }
.ui-table { width: 100%; border-collapse: collapse; font-size: var(--ui-fs); white-space: nowrap; }
.ui-table th, .ui-table td { text-align: left; padding: 0 10px; height: var(--ui-row-h); border-bottom: 1px solid var(--ui-border); vertical-align: middle; }
.ui-table th { font-weight: 600; color: var(--ui-text-bright); position: sticky; top: 0; background: var(--ui-bg); z-index: 1; }
.ui-table th.is-sorted, .ui-table th.sortable:hover { color: var(--ui-accent); cursor: pointer; }
.ui-table th .ui-icon { width: 12px; height: 12px; color: var(--ui-text-2); margin-left: 4px; }
.ui-table td { color: var(--ui-text); }
.ui-table tbody tr:hover { background: var(--ui-raised); }
.ui-table tbody tr.is-selected { background: var(--ui-selected); }
.ui-table tbody tr.is-selected td:first-child { box-shadow: inset 2px 0 0 var(--ui-accent); }
.ui-table tbody tr.is-muted td { color: var(--ui-text-3); }
.ui-table tbody tr.is-muted .ui-icon { color: var(--ui-text-3); }
.ui-table .num, .ui-table td.right, .ui-table th.right { text-align: right; }
.ui-table .center { text-align: center; }
.ui-table .w-check { width: 34px; padding-right: 0; }
.ui-table .w-dot { width: 22px; padding-right: 0; }
.ui-table .w-icon { width: 36px; }
.ui-table.striped tbody tr:nth-child(even) { background: rgba(255,255,255,.015); }
.ui-table.card { background: var(--ui-surface); }
.ui-table.card th { background: var(--ui-surface); }
.ui-table.compact th, .ui-table.compact td { height: 26px; font-size: var(--ui-fs-sm); }
.ui-table .ui-th-filter { display: inline-grid; place-items: center; width: 14px; height: 14px; margin-left: 4px; color: var(--ui-text-2); cursor: pointer; vertical-align: -3px; }
.ui-table .ui-th-filter .ui-icon { margin: 0; }

/* tiny channel/column header numbers, e.g. 36 40 44 … */
.ui-table th.tiny { font-size: 9px; font-weight: 600; color: var(--ui-accent); padding: 0 3px; text-align: center; }

/* pager */
.ui-pager { display: flex; align-items: center; gap: 14px; padding: 12px 0; color: var(--ui-text-2); font-size: var(--ui-fs-sm); }
.ui-pager .ui-pager-nav { display: inline-flex; border: 1px solid var(--ui-border-2); border-radius: var(--ui-radius-sm); overflow: hidden; }
.ui-pager .ui-pager-nav button { width: 24px; height: 24px; display: grid; place-items: center; background: transparent; border: 0; color: var(--ui-text-2); cursor: pointer; }
.ui-pager .ui-pager-nav button + button { border-left: 1px solid var(--ui-border-2); }
.ui-pager .ui-pager-nav button:hover { color: var(--ui-text-bright); background: var(--ui-raised); }
.ui-pager .ui-pager-nav button:disabled { opacity: .4; cursor: default; }
.ui-pager .ui-select { width: auto; height: 26px; }

/* ---------- 8. Filter sidebar ---------- */
.ui-subtabs { display: flex; background: var(--ui-surface); border-radius: var(--ui-radius-sm); padding: 2px; margin-bottom: 10px; }
.ui-subtabs > * { flex: 1; display: flex; align-items: center; justify-content: center; gap: 6px; height: 28px; border-radius: 3px; border: 0; background: transparent; color: var(--ui-text-2); font: inherit; font-weight: 500; cursor: pointer; }
.ui-subtabs > .is-active { background: var(--ui-raised); color: var(--ui-accent); }
.ui-subtabs > *:not(.is-active) > span { display: none; }  /* icon-only when not selected */

.ui-filter { padding: 10px 0; border-bottom: 1px solid var(--ui-border); }
.ui-filter:last-child { border-bottom: 0; }
.ui-filter-title { display: flex; align-items: center; justify-content: space-between; font-size: var(--ui-fs-xs); font-weight: 700; color: var(--ui-text); margin-bottom: 8px; cursor: pointer; border-radius: var(--ui-radius-sm); padding: 2px 4px; margin-left: -4px; margin-right: -4px; }
.ui-filter-title:hover { background: var(--ui-raised); }
.ui-filter-title .ui-icon { width: 14px; height: 14px; color: var(--ui-text-2); }
.ui-filter-title.is-collapsed { margin-bottom: 0; }
.ui-filter-list { display: flex; flex-direction: column; gap: 4px; }
.ui-filter-list .ui-check, .ui-filter-list .ui-radio { padding: 3px 4px; margin: 0 -4px; border-radius: var(--ui-radius-sm); }
.ui-filter-list .ui-check:hover, .ui-filter-list .ui-radio:hover { background: var(--ui-raised); }
.ui-filter-list.two { display: grid; grid-template-columns: 1fr 1fr; }
.ui-filter-list.scroll { max-height: 150px; overflow: auto; }
.ui-filter .ui-group { font-size: var(--ui-fs-xs); color: var(--ui-text-2); margin: 6px 0 2px; }
.ui-filter .ui-selected { display: flex; justify-content: space-between; align-items: center; font-size: var(--ui-fs-xs); color: var(--ui-text-3); padding: 6px 0; border-bottom: 1px solid var(--ui-border); margin-bottom: 4px; }
.ui-filter .ui-switch { width: 100%; justify-content: space-between; padding: 4px 0; }
.ui-filter .ui-switch .ui-switch-label { font-size: var(--ui-fs-xs); font-weight: 700; }

/* ---------- 9. Cards, key-values, stats ---------- */
.ui-card { background: var(--ui-surface); border-radius: var(--ui-radius-lg); padding: 12px 14px; }
.ui-card.flat { background: transparent; border: 1px solid var(--ui-border); }
.ui-card.outline { background: transparent; border: 1px solid var(--ui-border-2); }
.ui-card.focus { border: 1px solid var(--ui-accent); background: transparent; }
.ui-card.pad-0 { padding: 0; }
.ui-card-title { display: flex; align-items: center; justify-content: space-between; gap: 8px; font-weight: 600; color: var(--ui-text-bright); margin-bottom: 10px; }
.ui-card-title .ui-icon { color: var(--ui-text-2); }
.ui-card-title .ui-icon.chev { margin-left: auto; cursor: pointer; }
.ui-card-title h3, .ui-card-title h2 { margin: 0; font-size: inherit; font-weight: inherit; display: flex; align-items: center; gap: 8px; }
.ui-card + .ui-card { margin-top: 12px; }
.ui-cards { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.ui-section-title { display: flex; align-items: center; gap: 8px; font-weight: 600; color: var(--ui-text-bright); margin: 0 0 8px; }
.ui-section-title .ui-icon { color: var(--ui-accent); }

.ui-kv { display: flex; flex-direction: column; }
.ui-kv > div { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 6px 0; }
.ui-kv > div > :first-child { color: var(--ui-text); display: inline-flex; align-items: center; gap: 4px; }
.ui-kv > div > :last-child { color: var(--ui-text-2); text-align: right; display: inline-flex; align-items: center; gap: 4px; }
.ui-kv.tight > div { padding: 3px 0; }
.ui-kv.lined > div { border-bottom: 1px solid var(--ui-border); }
.ui-kv.lined > div:last-child { border-bottom: 0; }
.ui-kv.bright > div > :last-child { color: var(--ui-text-bright); }
.ui-kv.dim > div > :first-child, .ui-kv.dim > div > :last-child { color: var(--ui-text-3); }

.ui-stat { display: flex; justify-content: space-between; align-items: center; padding: 5px 0; }
.ui-stat > :first-child { display: inline-flex; align-items: center; gap: 8px; }
.ui-stat > :last-child { color: var(--ui-text-2); }
.ui-stat .ui-icon { color: var(--ui-text-2); }

/* pill stats (15ms  29ms  7ms) */
.ui-pills { display: flex; gap: 6px; }
.ui-pill { flex: 1; display: inline-flex; align-items: center; justify-content: center; gap: 6px; height: 28px; border-radius: var(--ui-radius-sm); background: var(--ui-surface); color: var(--ui-text-2); font-size: var(--ui-fs-sm); }
.ui-pill .ui-icon { width: 14px; height: 14px; }

/* stat strip: icon count · icon count */
.ui-counts { display: flex; align-items: center; gap: 4px; color: var(--ui-text); }
.ui-counts > span { display: inline-flex; align-items: center; gap: 4px; }
.ui-counts > span + span::before { content: ""; width: 14px; border-top: 1px dotted var(--ui-text-3); margin: 0 4px; }
.ui-counts .ui-icon { color: var(--ui-accent); }

/* empty state */
.ui-empty { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; padding: 24px; color: var(--ui-text-2); text-align: center; min-height: 120px; }
.ui-empty .ui-icon { width: 22px; height: 22px; color: var(--ui-accent); }

/* ---------- 10. Icon tiles ---------- */
.ui-tiles { display: flex; gap: 6px; flex-wrap: wrap; }
.ui-tiles-title { font-size: var(--ui-fs-sm); color: var(--ui-text); margin-bottom: 6px; }
.ui-tile { display: flex; flex-direction: column; align-items: center; gap: 4px; width: 52px; cursor: pointer; }
.ui-tile .ui-tile-box { width: 40px; height: 36px; display: grid; place-items: center; border-radius: var(--ui-radius); border: 1px solid var(--ui-border-2); background: var(--ui-surface); color: var(--ui-text); position: relative; }
.ui-tile .ui-tile-box .ui-icon { width: 18px; height: 18px; }
.ui-tile .ui-tile-count { position: absolute; top: -8px; right: -1px; font-size: 9px; font-weight: 600; color: var(--ui-text-2); background: var(--ui-bg); padding: 0 3px; border-radius: 3px; }
.ui-tile .ui-tile-label { font-size: 9px; color: var(--ui-text-2); max-width: 52px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ui-tile:hover .ui-tile-box { border-color: var(--ui-text-2); }
.ui-tile.is-active .ui-tile-box { border-color: var(--ui-accent); box-shadow: 0 0 0 2px var(--ui-accent-ghost); }
.ui-tile.round .ui-tile-box { border-radius: 50%; width: 36px; }
.ui-tile.lg .ui-tile-box { width: 48px; height: 44px; }
.ui-tile.lg .ui-tile-box .ui-icon { width: 22px; height: 22px; }

/* ---------- 11. Ports ---------- */
.ui-ports { display: grid; grid-auto-flow: column; grid-template-rows: repeat(2, auto); gap: 5px; width: max-content; }
.ui-ports.gap { column-gap: 5px; }
.ui-ports .ui-port-gap { width: 26px; }
.ui-port { position: relative; width: 38px; height: 38px; border-radius: 5px; background: var(--ui-gray); color: #111; font-size: 10px; font-weight: 600; display: flex; align-items: flex-end; padding: 3px 4px; cursor: pointer; }
.ui-port.fe { background: var(--ui-lime); }
.ui-port.gbe { background: var(--ui-green); }
.ui-port.tengbe { background: var(--ui-cyan); }
.ui-port.off { background: var(--ui-gray); color: var(--ui-text); }
.ui-port.poe::before { content: "⚡"; position: absolute; top: 2px; left: 4px; font-size: 9px; }
.ui-port .ui-icon { position: absolute; top: 3px; right: 3px; width: 11px; height: 11px; stroke-width: 2; }
.ui-port.sm { width: 18px; height: 18px; border-radius: 3px; padding: 0; font-size: 0; }
.ui-port.sm .ui-icon { width: 9px; height: 9px; top: 1px; right: 1px; }
.ui-port.sfp::after { content: "SFP"; position: absolute; bottom: 4px; right: 4px; font-size: 7px; opacity: .7; }
.ui-legend { display: flex; flex-wrap: wrap; gap: 4px 12px; font-size: var(--ui-fs-xs); color: var(--ui-text-2); margin-top: 8px; }
.ui-legend > span { display: inline-flex; align-items: center; gap: 5px; }
.ui-legend i { display: inline-block; width: 8px; height: 8px; border-radius: 2px; background: var(--ui-c, var(--ui-gray)); }
.ui-legend i.rounded { border-radius: 50%; }

/* ---------- 12. Zone matrix ---------- */
.ui-matrix-wrap { display: grid; grid-template-columns: 18px 1fr; grid-template-rows: 18px 1fr; background: var(--ui-surface); border-radius: var(--ui-radius-lg); padding: 10px 14px 14px 6px; }
.ui-matrix-wrap .ui-matrix-dst { grid-column: 2; text-align: center; font-size: var(--ui-fs-sm); color: var(--ui-text-2); }
.ui-matrix-wrap .ui-matrix-src { grid-row: 2; writing-mode: vertical-rl; transform: rotate(180deg); text-align: center; font-size: var(--ui-fs-sm); color: var(--ui-text-2); }
.ui-matrix { border-collapse: separate; border-spacing: 1px; width: 100%; table-layout: fixed; font-size: var(--ui-fs); }
.ui-matrix th, .ui-matrix td { height: 28px; text-align: center; border-radius: 2px; border: 1px solid var(--ui-border-2); padding: 0 8px; font-weight: 400; position: relative; }
.ui-matrix th { color: var(--ui-text); background: transparent; }
.ui-matrix th.all { color: var(--ui-accent); background: var(--ui-accent-deep); border-color: var(--ui-accent-dim); }
.ui-matrix td { cursor: pointer; color: var(--ui-text-bright); }
.ui-matrix td.allow { background: var(--ui-allow); border-color: #4f7d5f; }
.ui-matrix td.block { background: var(--ui-block); border-color: #8c6a6e; }
.ui-matrix td.return { background: var(--ui-return); border-color: #38617a; }
.ui-matrix td.none { background: var(--ui-bg); color: var(--ui-text-2); }
.ui-matrix td.is-active { outline: 2px solid var(--ui-green); outline-offset: -2px; }
.ui-matrix td .ui-n { position: absolute; right: 6px; top: 50%; transform: translateY(-50%); color: var(--ui-accent); font-size: var(--ui-fs-sm); }
.ui-matrix td.block .ui-n { color: #ffb4b8; }

/* ---------- 13. Bars, buckets, scales, charts ---------- */
/* horizontal stacked bar (airtime, utilisation) */
.ui-bar { display: flex; height: 6px; border-radius: 3px; background: var(--ui-border-2); overflow: hidden; }
.ui-bar > i { display: block; height: 100%; background: var(--ui-c, var(--ui-accent)); }
.ui-bar.thick { height: 10px; }
.ui-bar.thin { height: 4px; }
.ui-bar-head { display: flex; justify-content: space-between; font-size: var(--ui-fs-xs); color: var(--ui-text-2); margin: 6px 0 4px; }

/* labelled 100% bars (Association 100%) */
.ui-bars { display: flex; gap: 6px; }
.ui-bars > div { flex: 1; }
.ui-bars .ui-bar-label { display: block; height: 14px; line-height: 14px; padding: 0 5px; border-radius: 2px; background: var(--ui-green-text); color: #0d2214; font-size: 10px; font-weight: 600; }
.ui-bars .ui-bar-val { font-size: 10px; color: var(--ui-green); margin-top: 3px; }

/* bucket distribution (signal -90 … -30) */
.ui-buckets { display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; gap: 3px; }
.ui-buckets > div { text-align: center; font-size: 10px; color: var(--ui-text-2); }
.ui-buckets > div > b { display: block; height: 14px; line-height: 14px; border-radius: 2px; background: var(--ui-border-2); color: #fff; font-size: 10px; font-weight: 600; margin-bottom: 3px; }
.ui-buckets > div.red > b { background: var(--ui-red); }
.ui-buckets > div.orange > b { background: var(--ui-orange); }
.ui-buckets > div.yellow > b { background: #839c21; }
.ui-buckets > div.green > b { background: var(--ui-green-text); }
.ui-buckets > div.dark > b { background: rgba(238,99,104,.25); }
.ui-buckets > div > b:empty { color: transparent; }

/* retries bucket bar (35%+ … 0%) uses same but muted */
.ui-buckets.muted > div > b { background: rgba(255,255,255,.06); }
.ui-buckets.muted > div.red > b { background: rgba(238,99,104,.35); }
.ui-buckets.muted > div.orange > b { background: rgba(231,150,19,.35); }
.ui-buckets.muted > div.yellow > b { background: rgba(223,193,22,.35); }
.ui-buckets.muted > div.green > b { background: var(--ui-green-text); }

/* gradient scale with markers (AP density -90 … -30) */
.ui-scale { position: relative; height: 6px; border-radius: 3px; margin: 22px 0 18px; background: linear-gradient(to right, #7a2b31, #8a5a1e 30%, #7e7a1a 55%, #3b7a3a 80%, #2a8a3f); }
.ui-scale.warm { background: linear-gradient(to right, #2a8a3f, #7e7a1a 55%, #d0742a); }
.ui-scale .ui-mark { position: absolute; top: 50%; width: 14px; height: 14px; border-radius: 50%; background: #d8f5df; border: 2px solid var(--ui-green); transform: translate(-50%, -50%); }
.ui-scale .ui-ticks { position: absolute; left: 0; right: 0; top: 10px; display: flex; justify-content: space-between; font-size: var(--ui-fs-xs); color: var(--ui-text-2); }

/* channel-plan grid */
.ui-channels { display: flex; flex-direction: column; gap: 3px; }
.ui-channels .ui-ch-row { display: flex; gap: 3px; align-items: center; }
.ui-channels .ui-ch-label { width: 48px; font-size: 10px; color: var(--ui-text-2); flex: none; }
.ui-channels .ui-ch-head { display: flex; gap: 3px; }
.ui-channels .ui-ch-head span, .ui-channels .ui-ch { width: 14px; height: 10px; border-radius: 2px; background: var(--ui-gray); flex: none; }
.ui-channels .ui-ch-head span { background: none; font-size: 8px; color: var(--ui-text-2); text-align: center; height: auto; }
.ui-channels .ui-ch.w2 { width: 31px; } .ui-channels .ui-ch.w4 { width: 65px; } .ui-channels .ui-ch.w8 { width: 133px; } .ui-channels .ui-ch.w12 { width: 201px; }
.ui-channels .ui-ch.use { background: var(--ui-green); }
.ui-channels .ui-ch.dfs { background: transparent; border: 1px solid var(--ui-gray); }
.ui-channels .ui-ch.na { background: #6b5a20; }
.ui-channels .ui-ch.ex { background: #7a3b3b; }
.ui-channels .ui-ch:hover { outline: 1px solid var(--ui-text-2); }

/* tiny inline heat cell (channel utilisation cells in a table) */
.ui-heat { display: inline-block; width: 34px; height: 14px; border-radius: 2px; background: #2c4a35; }
.ui-heat.hot { background: var(--ui-green); box-shadow: 0 0 6px rgba(55,190,96,.6); }

/* svg chart container */
.ui-chart { position: relative; width: 100%; color: var(--ui-text-2); font-size: 10px; }
.ui-chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.ui-chart .grid { stroke: var(--ui-border-2); stroke-width: 1; stroke-dasharray: 2 3; }
.ui-chart .axis { fill: var(--ui-text-2); font-size: 10px; font-feature-settings: "tnum" 1, "zero" 1; }
.ui-chart .line { fill: none; stroke-width: 1.5; stroke-linejoin: round; }
.ui-chart .line.cyan { stroke: var(--ui-cyan); }
.ui-chart .line.purple { stroke: var(--ui-purple); }
.ui-chart .line.blue { stroke: var(--ui-accent); }
.ui-chart .line.orange { stroke: var(--ui-orange); }
.ui-chart .line.green { stroke: var(--ui-green); }
.ui-chart .area { fill: var(--ui-accent); opacity: .35; }
.ui-chart .area.cyan { fill: var(--ui-cyan); }
.ui-chart .threshold { stroke: var(--ui-yellow); stroke-width: 1; stroke-dasharray: 2 2; }
.ui-chart .box { stroke: var(--ui-border-2); fill: none; }
.ui-chart .band { fill-opacity: .25; stroke-width: 1.5; }
.ui-chart .band.blue { fill: var(--ui-accent); stroke: var(--ui-accent); }
.ui-chart .band.yellow { fill: var(--ui-yellow); stroke: var(--ui-yellow); }
.ui-chart .band.orange { fill: var(--ui-orange); stroke: var(--ui-orange); }
.ui-chart .band.green { fill: var(--ui-green); stroke: var(--ui-green); }
.ui-chart-foot { display: flex; justify-content: space-between; font-size: 10px; color: var(--ui-text-2); margin-top: 4px; }
.ui-chart-legend { display: flex; gap: 12px; align-items: center; font-size: var(--ui-fs-sm); color: var(--ui-text); }
.ui-chart-legend i { display: inline-block; width: 10px; height: 3px; background: var(--ui-c, var(--ui-accent)); border-radius: 2px; margin-right: 6px; vertical-align: middle; }
.ui-chart-legend i.dashed { background: repeating-linear-gradient(to right, var(--ui-c, var(--ui-accent)) 0 3px, transparent 3px 5px); }
.ui-spark { display: block; width: 100%; height: 34px; }
.ui-spark path.fill { fill: var(--ui-accent-dim); opacity: .6; }
.ui-spark path.stroke { fill: none; stroke: var(--ui-accent); stroke-width: 1; }

/* WAN status line (green bar with ISP icon and chevron) */
.ui-linkline { display: flex; align-items: center; gap: 8px; }
.ui-linkline .ui-bar { flex: 1; height: 4px; }
.ui-linkline .ui-bar > i { width: 100%; background: var(--ui-green-text); }

/* ---------- 14. Timeline (vertical, "Time Machine") ---------- */
.ui-timeline { position: relative; width: 170px; height: 100%; background: var(--ui-bg); border-right: 1px solid var(--ui-border); padding: 8px; font-size: 10px; color: var(--ui-text-2); }
.ui-timeline .ui-tl-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; color: var(--ui-text); }
.ui-timeline .ui-tl-zoom { display: inline-flex; align-items: center; gap: 4px; }
.ui-timeline .ui-tl-zoom .ui-bar { width: 50px; height: 4px; }
.ui-timeline .ui-tl-axis { position: relative; margin-left: 40px; border-left: 1px solid var(--ui-border-2); height: calc(100% - 40px); }
.ui-timeline .ui-tl-axis::before { content: ""; position: absolute; left: 6px; top: 0; bottom: 0; width: 6px; background: var(--ui-accent-deep); }
.ui-timeline .ui-tl-tick { position: absolute; left: -42px; width: 40px; text-align: right; padding-right: 6px; transform: translateY(-50%); }
.ui-timeline .ui-tl-tick::after { content: ""; position: absolute; right: -4px; top: 50%; width: 4px; border-top: 1px solid var(--ui-border-2); }
.ui-timeline .ui-tl-live { position: absolute; left: -14px; right: 0; display: flex; align-items: center; gap: 4px; transform: translateY(-50%); }
.ui-timeline .ui-tl-live::after { content: ""; flex: 1; border-top: 1px solid var(--ui-accent); }
.ui-timeline .ui-tl-live .ui-chip { background: var(--ui-accent); color: #fff; font-size: 9px; font-weight: 700; height: 16px; }

/* ---------- 15. Settings navigation ---------- */
.ui-nav { display: flex; flex-direction: column; gap: 2px; padding: 8px; }
.ui-nav-item, .ui a.ui-nav-item { display: flex; align-items: center; gap: 10px; height: 34px; padding: 0 10px; border-radius: var(--ui-radius); color: var(--ui-text); cursor: pointer; text-decoration: none; }
.ui-nav-item:hover { background: var(--ui-raised); color: var(--ui-text); }
.ui-nav-item.is-active { background: var(--ui-raised); color: var(--ui-accent); }
.ui-nav-item .ui-icon { color: var(--ui-text-2); width: 18px; height: 18px; }
.ui-nav-item.is-active .ui-icon { color: var(--ui-accent); }
.ui-nav-label { font-size: var(--ui-fs-xs); color: var(--ui-text-2); padding: 12px 8px 4px; }
.ui-nav-label.strong { color: var(--ui-text); font-weight: 700; }
.ui-nav-sep { height: 1px; background: var(--ui-border); margin: 6px 4px; }
.ui-nav-icons { display: flex; gap: 4px; padding: 4px 8px; }
.ui-nav-icons .ui-btn.icon { width: 32px; height: 32px; }
.ui-nav-icons .ui-btn.icon.is-active { background: var(--ui-raised); color: var(--ui-accent); }
.ui-nav-tree > .ui-nav-item + .ui-nav-item { position: relative; }
.ui-nav-tree > .ui-nav-item + .ui-nav-item::before { content: ""; position: absolute; left: 18px; top: -12px; height: 12px; border-left: 1px dotted var(--ui-text-3); }
.ui-nav-foot { padding: 10px 16px; font-size: var(--ui-fs-xs); color: var(--ui-text-2); display: flex; flex-direction: column; gap: 10px; }

/* settings layout: nav column + content */
.ui-settings { display: grid; grid-template-columns: 210px 1fr; height: 100%; }
.ui-settings > .ui-settings-nav { border-right: 1px solid var(--ui-border); overflow: auto; padding-top: 6px; }
.ui-settings > .ui-settings-body { overflow: auto; padding: 14px 18px; }
.ui-settings-nav .ui-search { padding: 8px 8px 0; }

/* option cards column + focus panel (VPN Server / Client, protection levels) */
.ui-options { display: grid; grid-template-columns: 280px 1fr; gap: 12px; align-items: start; }
.ui-option-list { display: flex; flex-direction: column; gap: 8px; background: var(--ui-surface); border-radius: var(--ui-radius-lg); padding: 8px; min-height: 100%; }
.ui-option { position: relative; padding: 10px 12px; border-radius: var(--ui-radius); background: var(--ui-raised); border: 1px solid transparent; cursor: pointer; }
.ui-option:hover { border-color: var(--ui-border-2); }
.ui-option.is-active { border-color: var(--ui-accent); background: var(--ui-accent-deep); }
.ui-option.is-active::after { content: ""; position: absolute; right: -9px; top: 14px; width: 8px; height: 8px; background: var(--ui-accent); border-radius: 50%; }
.ui-option h4 { margin: 0 0 2px; font-size: inherit; font-weight: 600; color: var(--ui-text-bright); }
.ui-option.is-active h4 { color: var(--ui-accent); }
.ui-option p { margin: 0; color: var(--ui-text-2); font-size: var(--ui-fs-sm); }
.ui-option.is-active p { color: var(--ui-text); }
.ui-option ul { margin: 6px 0 0; padding-left: 14px; color: var(--ui-text-2); font-size: var(--ui-fs-sm); }
.ui-option .ui-flow { display: flex; align-items: center; gap: 4px; margin-top: 8px; }
.ui-option .ui-flow > span { font-size: 9px; padding: 1px 5px; border: 1px solid var(--ui-accent); border-radius: 2px; color: var(--ui-text); }
.ui-option .ui-flow > i { flex: 1; height: 1px; background: var(--ui-accent); min-width: 8px; position: relative; }
.ui-option .ui-flow > i::after { content: ""; position: absolute; right: -1px; top: -3px; border: 3.5px solid transparent; border-left-color: var(--ui-accent); }
.ui-focus-panel { border: 1px solid var(--ui-accent); border-radius: var(--ui-radius-lg); padding: 14px 18px; }
.ui-focus-panel .ui-form-row { grid-template-columns: 220px 1fr; }

/* toggle rows (SafeOps style: title, description, switch right) */
.ui-toggle-row { display: grid; grid-template-columns: 1fr auto; gap: 6px 24px; padding: 10px 0; }
.ui-toggle-row .ui-toggle-title { color: var(--ui-text); }
.ui-toggle-row .ui-toggle-desc { grid-column: 1; font-size: var(--ui-fs-xs); color: var(--ui-text-2); max-width: 240px; }
.ui-toggle-row .ui-switch { grid-column: 2; grid-row: 1; }
.ui-toggle-row .ui-toggle-extra { grid-column: 2; grid-row: 2; }

/* ---------- 16. Notices, banners, tooltips, modals ---------- */
.ui-notice { position: relative; display: flex; gap: 8px; padding: 10px 28px 10px 12px; border-radius: var(--ui-radius-lg); background: var(--ui-surface); font-size: var(--ui-fs-sm); color: var(--ui-text-2); }
.ui-notice > .ui-icon { color: var(--ui-accent); margin-top: 1px; }
.ui-notice b { display: block; color: var(--ui-text-bright); font-weight: 600; margin-bottom: 2px; }
.ui-notice .ui-close { position: absolute; right: 6px; top: 6px; }
.ui-notice.raised { background: var(--ui-raised); color: var(--ui-text); }
.ui-notice.warn > .ui-icon { color: var(--ui-yellow); }
.ui-notice.danger > .ui-icon { color: var(--ui-red); }
.ui-notice.inline { padding: 8px 12px; align-items: center; }
.ui-notice.inline b { display: inline; margin: 0 4px 0 0; }
.ui-hint { display: flex; align-items: center; gap: 8px; font-size: var(--ui-fs-sm); color: var(--ui-text); }
.ui-hint > .ui-icon, .ui-hint > .ui-info { color: var(--ui-accent); flex: none; }

.ui-tooltip { display: inline-block; background: var(--ui-raised); color: var(--ui-text); padding: 8px 12px; border-radius: var(--ui-radius); font-size: var(--ui-fs-sm); box-shadow: 0 4px 16px rgba(0,0,0,.45); max-width: 240px; }
.ui-tooltip b { display: block; color: var(--ui-text-bright); font-weight: 600; margin-bottom: 4px; }
.ui-tooltip .ui-kv > div { padding: 1px 0; gap: 16px; }
.ui-tooltip .ui-kv > div > :last-child { color: var(--ui-text-bright); font-weight: 600; }
.ui-tooltip.arrow-bottom { position: relative; }
.ui-tooltip.arrow-bottom::after { content: ""; position: absolute; left: 50%; bottom: -5px; width: 10px; height: 10px; background: inherit; transform: translateX(-50%) rotate(45deg); }

.ui-modal-backdrop { position: fixed; inset: 0; background: var(--ui-overlay); display: grid; place-items: center; z-index: 50; }
.ui-modal { width: 400px; max-width: calc(100vw - 32px); background: var(--ui-raised); border-radius: var(--ui-radius-lg); box-shadow: 0 12px 40px rgba(0,0,0,.6); display: flex; flex-direction: column; max-height: 80vh; }
.ui-modal-head { display: flex; align-items: center; justify-content: space-between; padding: 14px 16px 10px; font-weight: 600; color: var(--ui-text-bright); }
.ui-modal-body { padding: 0 16px; overflow: auto; flex: 1; }
.ui-modal-body .ui-input { background: var(--ui-input); }
.ui-modal-foot { display: flex; align-items: center; gap: 8px; padding: 14px 16px; }
.ui-modal-foot > :first-child { margin-right: auto; }
.ui-modal .ui-tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px 8px; padding: 12px 0; }
.ui-modal .ui-tile { width: auto; }
.ui-modal .ui-tile .ui-tile-label { font-size: var(--ui-fs-xs); white-space: normal; text-align: center; max-width: none; }

/* toast */
.ui-toast { display: inline-flex; align-items: center; gap: 10px; padding: 10px 14px; border-radius: var(--ui-radius-lg); background: var(--ui-raised); color: var(--ui-text); box-shadow: 0 8px 24px rgba(0,0,0,.5); }
.ui-toast > .ui-icon { color: var(--ui-green); }
.ui-toast.error > .ui-icon { color: var(--ui-red); }

/* ---------- 17. Diagram boxes ---------- */
.ui-diagram { display: flex; align-items: flex-start; gap: 24px; flex-wrap: wrap; }
.ui-node { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; min-width: 96px; padding: 10px 12px; border-radius: var(--ui-radius); background: var(--ui-accent-deep); border: 1px solid var(--ui-accent-dim); color: var(--ui-text-bright); font-size: var(--ui-fs-xs); text-align: center; }
.ui-node .ui-icon { color: var(--ui-accent); width: 18px; height: 18px; }
.ui-node.dashed { background: transparent; border: 1px dashed var(--ui-accent); }
.ui-node.lg { min-width: 140px; padding: 14px; font-size: var(--ui-fs); }
.ui-node.lg .ui-icon { width: 24px; height: 24px; }
.ui-node .ui-node-sub { color: var(--ui-text-2); font-size: var(--ui-fs-xs); }
.ui-group { position: relative; display: flex; gap: 8px; padding: 8px; border: 1px dashed var(--ui-accent); border-radius: var(--ui-radius); }
.ui-group .ui-group-label { position: absolute; top: -20px; left: 0; font-size: var(--ui-fs-sm); color: var(--ui-text-2); display: inline-flex; align-items: center; gap: 4px; }
.ui-group .ui-node { background: transparent; border: 0; min-width: 72px; padding: 6px 8px; }
.ui-edge { align-self: center; display: flex; align-items: center; gap: 6px; color: var(--ui-accent); font-size: var(--ui-fs-xs); }
.ui-edge::before, .ui-edge::after { content: ""; width: 20px; border-top: 1px solid var(--ui-accent-dim); }
.ui-edge.dotted::before, .ui-edge.dotted::after { border-top-style: dashed; }
.ui-edge.plain { width: 32px; } .ui-edge.plain::before { width: 32px; } .ui-edge.plain::after { display: none; }

/* routing-style cards with dark gradient */
.ui-route-card { display: flex; flex-direction: column; align-items: center; gap: 4px; width: 190px; padding: 18px 12px; border-radius: var(--ui-radius-lg); background: var(--ui-surface); border: 1px solid var(--ui-border-2); text-align: center; font-size: var(--ui-fs-sm); }
.ui-route-card.is-active { background: var(--ui-raised); }
.ui-route-card .ui-icon { width: 24px; height: 24px; color: var(--ui-accent); margin-bottom: 4px; }
.ui-route-card b { color: var(--ui-text-bright); }
.ui-route-card span { color: var(--ui-text-2); font-size: var(--ui-fs-xs); }
.ui-route-card a { font-size: var(--ui-fs-xs); }

/* ---------- 18. Misc ---------- */
.ui-device-hero { display: flex; align-items: center; gap: 12px; }
.ui-device-hero .ui-device-img { width: 48px; height: 28px; border-radius: 4px; background: linear-gradient(#5b5f66, #3c4046); border: 1px solid var(--ui-border-2); }
.ui-device-hero b { display: block; color: var(--ui-text-bright); font-weight: 600; }
.ui-device-hero span { color: var(--ui-text-2); font-size: var(--ui-fs-sm); }
.ui-device-hero .ui-icon.round { width: 32px; height: 32px; padding: 6px; border-radius: 50%; background: #fff; color: #222; }

.ui-inline-stats { display: flex; gap: 16px; font-size: var(--ui-fs-xs); color: var(--ui-text-2); }
.ui-inline-stats > div > b { display: block; color: var(--ui-text); font-weight: 400; }
.ui-inline-stats > div + div { border-left: 1px solid var(--ui-border-2); padding-left: 16px; }

.ui-mono { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: var(--ui-fs-sm); }
.ui-code { background: var(--ui-surface); border: 1px solid var(--ui-border); border-radius: var(--ui-radius); padding: 10px 12px; overflow: auto; font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: 12px; line-height: 1.5; color: var(--ui-text); white-space: pre; }

/* reduced motion */
@media (prefers-reduced-motion: reduce) { .ui *, .ui *::before, .ui *::after { transition: none !important; animation: none !important; } }