:root {
  color-scheme: dark;
  --ink: #e5edf6;
  --muted: #91a2b6;
  --subtle: #70839a;
  --line: #24364a;
  --line-strong: #344b63;
  --panel: #101b29;
  --canvas: #0b1521;
  --navy: #09131f;
  --navy-light: #16283b;
  --blue: #4b91f7;
  --blue-dark: #2d73d7;
  --blue-soft: #142d4d;
  --green: #36c693;
  --green-soft: #12372f;
  --orange: #f4a24f;
  --orange-soft: #402b19;
  --red: #f06a70;
  --red-soft: #401f28;
  --purple: #a590ff;
  --purple-soft: #29234b;
  --shadow-sm: 0 2px 5px rgb(0 0 0 / 22%);
  --shadow-md: 0 12px 32px rgb(0 0 0 / 34%);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-width: 320px;
  min-height: 100%;
  margin: 0;
}

body {
  color: var(--ink);
  background: #07101a;
  font-size: 14px;
}

button,
input,
select {
  font: inherit;
}

button {
  color: inherit;
}

button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 3px solid rgb(35 120 243 / 22%);
  outline-offset: 2px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.app-shell {
  --devices-col: 224px;
  --inspector-col: 342px;
  --timeline-row: minmax(250px, 0.72fr);

  display: grid;
  grid-template-rows: auto minmax(410px, 1fr) var(--timeline-row);
  width: 100%;
  height: 100vh;
  min-height: 760px;
  overflow: hidden;
}

.topbar {
  z-index: 20;
  display: grid;
  grid-template-columns: minmax(240px, 1fr) minmax(280px, 1.2fr) auto;
  gap: 28px;
  align-items: center;
  min-height: 82px;
  padding: 14px 20px;
  color: #fff;
  background: var(--navy);
  box-shadow: 0 4px 18px rgb(5 18 32 / 18%);
}

.brand-block,
.scenario-block,
.toolbar,
.heading-line,
.device-list-item,
.inspector-summary,
.detail-title,
.event-result {
  display: flex;
  align-items: center;
}

.brand-block {
  gap: 12px;
}

.brand-mark {
  position: relative;
  width: 38px;
  height: 38px;
  border: 1px solid rgb(255 255 255 / 16%);
  border-radius: 11px;
  background: rgb(255 255 255 / 7%);
}

.brand-mark span {
  position: absolute;
  width: 7px;
  height: 7px;
  border: 2px solid #70adff;
  border-radius: 50%;
  background: var(--navy);
}

.brand-mark span:nth-child(1) {
  top: 7px;
  left: 7px;
}

.brand-mark span:nth-child(2) {
  top: 22px;
  left: 15px;
}

.brand-mark span:nth-child(3) {
  top: 8px;
  left: 24px;
}

.brand-mark::before,
.brand-mark::after {
  position: absolute;
  width: 17px;
  height: 1px;
  content: "";
  background: #70adff;
  transform-origin: left center;
}

.brand-mark::before {
  top: 14px;
  left: 12px;
  transform: rotate(28deg);
}

.brand-mark::after {
  top: 23px;
  left: 13px;
  transform: rotate(-30deg);
}

.eyebrow,
.section-label,
.scenario-label {
  margin: 0 0 3px;
  color: var(--subtle);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.topbar .eyebrow {
  color: #8ea2b8;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: 17px;
  font-weight: 720;
  letter-spacing: -0.01em;
}

h1 span {
  color: #72acfa;
  font-weight: 520;
}

h2 {
  margin-bottom: 0;
  font-size: 15px;
  letter-spacing: -0.01em;
}

.scenario-block {
  gap: 13px;
  min-width: 0;
  padding-left: 25px;
  border-left: 1px solid rgb(255 255 255 / 13%);
}

.scenario-label {
  flex: 0 0 auto;
  padding: 5px 7px;
  color: #82b4f8;
  border: 1px solid rgb(102 164 247 / 25%);
  border-radius: 5px;
  background: rgb(35 120 243 / 10%);
}

.scenario-details {
  display: grid;
  min-width: 0;
}

.scenario-picker {
  position: relative;
  min-width: 0;
}

.scenario-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  width: min(220px, 100%);
  min-width: 0;
  padding: 1px 0;
  overflow: hidden;
  color: #fff;
  border: 0;
  outline: 0;
  background: transparent;
  font-size: 13px;
  font-weight: 720;
  text-overflow: ellipsis;
  cursor: pointer;
}

.scenario-trigger span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.scenario-trigger svg {
  width: 15px;
  height: 15px;
  margin-left: auto;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
  transition: transform 150ms ease;
}

.scenario-trigger[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.scenario-trigger:disabled {
  color: #9aabbd;
  cursor: wait;
}

.scenario-menu {
  position: absolute;
  z-index: 100;
  top: calc(100% + 10px);
  left: -10px;
  width: 292px;
  max-height: min(70vh, 620px);
  overflow-y: auto;
  padding: 7px;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  background: #122132;
  box-shadow: var(--shadow-md);
}

.scenario-menu[hidden] {
  display: none;
}

.scenario-option,
.scenario-download {
  width: 100%;
  color: inherit;
  border: 0;
  background: transparent;
  cursor: pointer;
  transition: 150ms ease;
}

.scenario-option {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  gap: 7px;
  align-items: center;
  min-height: 34px;
  padding: 6px 9px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 650;
  text-align: left;
}

.scenario-option:hover,
.scenario-option:focus-visible {
  background: rgb(255 255 255 / 7%);
}

.scenario-option[aria-checked="true"] {
  color: #fff;
  background: rgb(75 145 247 / 13%);
}

.scenario-option-check {
  color: var(--blue);
  opacity: 0;
}

.scenario-option[aria-checked="true"] .scenario-option-check {
  opacity: 1;
}

.scenario-menu-divider {
  height: 1px;
  margin: 6px 3px;
  background: var(--line);
}

.scenario-details > span {
  margin-top: 3px;
  overflow: hidden;
  color: #91a2b5;
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.scenario-download {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 44px;
  padding: 7px 9px;
  color: #c8dcf2;
  border-radius: 6px;
  text-align: left;
}

.scenario-download > span {
  display: grid;
  gap: 2px;
}

.scenario-download strong {
  color: #dceaff;
  font-size: 11px;
  font-weight: 720;
}

.scenario-download small {
  overflow: hidden;
  color: var(--muted);
  font-size: 10px;
  font-weight: 500;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.scenario-download svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.scenario-download:hover:not(:disabled) {
  color: #fff;
  background: rgb(255 255 255 / 11%);
}

.scenario-download:disabled {
  cursor: not-allowed;
  opacity: .48;
}

.toolbar {
  justify-content: end;
  gap: 8px;
}

.button,
.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  border: 1px solid transparent;
  border-radius: 7px;
  cursor: pointer;
  transition: 150ms ease;
}

.button {
  gap: 7px;
  padding: 0 12px;
  font-size: 12px;
  font-weight: 680;
}

.button svg,
.icon-button svg,
.search-box svg,
.canvas-hint svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.button-secondary {
  color: #dbe8f6;
  border-color: rgb(255 255 255 / 14%);
  background: rgb(255 255 255 / 6%);
}

.button-secondary:hover,
.icon-button:hover:not(:disabled) {
  border-color: rgb(255 255 255 / 26%);
  background: rgb(255 255 255 / 11%);
}

.button-primary {
  color: #fff;
  background: var(--blue);
  box-shadow: 0 5px 16px rgb(35 120 243 / 25%);
}

.button-primary:hover {
  background: #3285f6;
  transform: translateY(-1px);
}

.button-primary:disabled {
  cursor: wait;
  opacity: .72;
  transform: none;
}

.button-group {
  display: flex;
  overflow: hidden;
  border: 1px solid rgb(255 255 255 / 13%);
  border-radius: 7px;
}

.trace-kind,
.trace-endpoints {
  display: flex;
  align-items: end;
  gap: 5px;
  color: #8194aa;
  font-size: 10px;
}

.trace-kind {
  display: grid;
  gap: 2px;
}

.trace-endpoints label {
  display: grid;
  gap: 2px;
  width: 128px;
}

.trace-kind > span,
.trace-endpoints label span {
  font-size: 7px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.trace-kind select,
.trace-endpoints select,
.trace-endpoints input {
  width: 100%;
  height: 25px;
  padding: 0 5px;
  color: #dbe8f6;
  border: 1px solid rgb(255 255 255 / 14%);
  border-radius: 5px;
  outline: none;
  background: #1a2d43;
  font: inherit;
}

.trace-kind select {
  width: 86px;
}

.trace-endpoints[hidden] {
  display: none;
}

.trace-endpoints input::placeholder {
  color: #8194aa;
}

.trace-kind select:focus,
.trace-endpoints select:focus,
.trace-endpoints input:focus {
  border-color: #70adff;
}

.trace-endpoints input[aria-invalid="true"] {
  border-color: var(--red);
}

.icon-button {
  width: 34px;
  color: #d7e4f1;
  border: 0;
  border-right: 1px solid rgb(255 255 255 / 12%);
  border-radius: 0;
  background: rgb(255 255 255 / 5%);
}

.icon-button.playback-button {
  width: 34px;
}

.playback-button .pause-icon,
.playback-button[data-playing="true"] .play-icon {
  display: none;
}

.playback-button[data-playing="true"] .pause-icon {
  display: block;
}

.icon-button:last-child {
  border-right: 0;
}

.icon-button svg {
  width: 15px;
  height: 15px;
}

.icon-button .fill-shape {
  fill: currentColor;
  stroke: none;
}

.icon-button:disabled {
  color: #62788e;
  cursor: default;
}

.workspace {
  display: grid;
  grid-template-columns: var(--devices-col) minmax(420px, 1fr) var(--inspector-col);
  min-height: 0;
  border-bottom: 1px solid var(--line-strong);
}

.app-shell.is-devices-collapsed {
  --devices-col: 46px;
}

.app-shell.is-inspector-collapsed {
  --inspector-col: 46px;
}

.app-shell.is-timeline-collapsed {
  --timeline-row: auto;
}

.panel {
  min-width: 0;
  min-height: 0;
  background: var(--panel);
}

.device-panel,
.inspector-panel {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.device-panel {
  border-right: 1px solid var(--line);
}

.inspector-panel {
  border-left: 1px solid var(--line);
}

.panel-heading,
.canvas-heading {
  flex: 0 0 auto;
  border-bottom: 1px solid var(--line);
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  padding: 13px 16px;
}

.panel-heading .eyebrow {
  color: #8794a6;
}

.panel-heading-title {
  min-width: 0;
}

.panel-heading-actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 6px;
}

.panel-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  min-height: 0;
}

.collapse-toggle {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  padding: 0;
  color: #62788e;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #f6f8fb;
  cursor: pointer;
}

.collapse-toggle:hover {
  color: #35475c;
  border-color: #bdc9d7;
  background: #eef2f7;
}

.collapse-toggle svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform .18s ease;
}

.collapse-toggle[aria-expanded="false"] svg {
  transform: rotate(180deg);
}

/* Collapsed side panels shrink to a vertical rail. */
.is-devices-collapsed .device-panel .panel-body,
.is-inspector-collapsed .inspector-panel .inspector-content,
.is-inspector-collapsed .inspector-panel .lldp-toggle,
.is-devices-collapsed .device-panel .count-badge {
  display: none;
}

.is-devices-collapsed .device-panel .panel-heading,
.is-inspector-collapsed .inspector-panel .panel-heading {
  flex: 1;
  align-items: center;
  flex-direction: column-reverse;
  justify-content: flex-end;
  gap: 12px;
  padding: 13px 8px;
  border-bottom: 0;
}

.is-devices-collapsed .device-panel .panel-heading .eyebrow,
.is-inspector-collapsed .inspector-panel .panel-heading .eyebrow {
  display: none;
}

.is-devices-collapsed .device-panel .panel-heading h2,
.is-inspector-collapsed .inspector-panel .panel-heading h2 {
  writing-mode: vertical-rl;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.is-timeline-collapsed .timeline-layout {
  display: none;
}

.is-timeline-collapsed .timeline-legend,
.is-timeline-collapsed .timeline-view-toggle {
  display: none;
}

.timeline-toolbar-actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
}

.count-badge,
.event-count {
  padding: 3px 8px;
  color: #637287;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #f6f8fb;
  font-size: 10px;
  font-weight: 750;
}

.search-box {
  position: relative;
  display: block;
  margin: 12px 12px 8px;
}

.search-box svg {
  position: absolute;
  top: 50%;
  left: 11px;
  width: 14px;
  height: 14px;
  color: #8b99aa;
  transform: translateY(-50%);
}

.search-box input {
  width: 100%;
  height: 34px;
  padding: 0 10px 0 33px;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #f8fafc;
  font-size: 12px;
}

.search-box input::placeholder {
  color: #9aa6b5;
}

.device-list {
  flex: 1;
  min-height: 0;
  padding: 3px 8px;
  overflow-y: auto;
}

.device-list-item {
  width: 100%;
  gap: 10px;
  padding: 8px;
  text-align: left;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
}

.device-list-item:hover {
  background: #f4f7fb;
}

.device-list-item.is-selected {
  border-color: #c9ddfb;
  background: var(--blue-soft);
}

.list-icon,
.node-icon,
.inspector-icon {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  color: #536b87;
  border: 1px solid #dce4ed;
  background: #f2f6fa;
}

.list-icon {
  width: 30px;
  height: 30px;
  border-radius: 7px;
}

.list-icon svg,
.node-icon svg,
.inspector-icon svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

.device-list-item.is-selected .list-icon {
  color: var(--blue);
  border-color: #bbd6fb;
  background: #fff;
}

.device-list-copy {
  display: grid;
  flex: 1;
  min-width: 0;
}

.device-list-copy strong {
  font-size: 12px;
}

.device-list-copy span {
  margin-top: 2px;
  overflow: hidden;
  color: var(--muted);
  font-size: 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.protocol-key {
  position: relative;
  flex: 0 0 auto;
  padding: 12px 16px 14px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  background: #fbfcfe;
  font-size: 10px;
}

.protocol-key-heading,
.protocol-help-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.protocol-key-heading .section-label {
  margin-bottom: 0;
}

.protocol-key-item {
  display: grid;
  grid-template-columns: 12px 1fr;
  gap: 7px;
  align-items: center;
  margin-top: 7px;
}

.protocol-help-button,
.protocol-help-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  color: var(--muted);
  border: 1px solid var(--line-strong);
  background: transparent;
  cursor: pointer;
}

.protocol-help-button {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  font-size: 11px;
  font-weight: 850;
  line-height: 1;
}

.protocol-help-button:hover,
.protocol-help-button[aria-expanded="true"],
.protocol-help-close:hover {
  color: var(--ink);
  border-color: #58708a;
  background: var(--navy-light);
}

.protocol-help-popover {
  position: absolute;
  right: 10px;
  bottom: calc(100% - 8px);
  left: 10px;
  z-index: 30;
  padding: 12px;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: #162638;
  box-shadow: var(--shadow-md);
}

.protocol-help-popover[hidden] {
  display: none;
}

.protocol-help-popover:focus-visible {
  outline: 3px solid rgb(75 145 247 / 28%);
  outline-offset: 2px;
}

.protocol-help-heading strong {
  font-size: 11px;
}

.protocol-help-close {
  width: 20px;
  height: 20px;
  border-radius: 5px;
  font-size: 16px;
  line-height: 1;
}

.protocol-help-popover dl {
  display: grid;
  gap: 9px;
  margin: 10px 0 0;
}

.protocol-help-popover dl > div {
  display: grid;
  gap: 2px;
}

.protocol-help-popover dt {
  color: var(--ink);
  font-size: 10px;
  font-weight: 800;
}

.protocol-help-popover dd {
  margin: 0;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.35;
}

.key-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}

.key-icmp {
  background: var(--blue);
  box-shadow: 0 0 0 3px var(--blue-soft);
}

.key-arp {
  background: var(--orange);
  box-shadow: 0 0 0 3px var(--orange-soft);
}

.key-lldp {
  background: var(--green);
  box-shadow: 0 0 0 3px var(--green-soft);
}

.key-ethernet {
  background: var(--purple);
  box-shadow: 0 0 0 3px var(--purple-soft);
}

.key-drop {
  background: var(--red);
  box-shadow: 0 0 0 3px var(--red-soft);
}

.key-stp {
  background: var(--red);
  box-shadow: 0 0 0 3px var(--red-soft);
}

.canvas-panel {
  display: flex;
  flex-direction: column;
  background: var(--canvas);
}

.canvas-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  padding: 10px 18px;
  background: rgb(255 255 255 / 84%);
}

.heading-line {
  gap: 9px;
}

.canvas-heading p,
.timeline-toolbar p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 10px;
}

.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: #53715f;
  font-size: 9px;
  font-weight: 750;
}

.live-badge {
  --status-dot: var(--green);
  --status-glow: rgb(24 168 120 / 45%);
  padding: 3px 7px;
  border: 1px solid #caeadd;
  border-radius: 999px;
  background: #effaf6;
  text-transform: uppercase;
}

.live-badge i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--status-dot);
}

.live-badge[data-state="loading"],
.live-badge[data-state="resetting"],
.live-badge[data-state="tracing"],
.live-badge[data-state="lldp_updating"],
.live-badge[data-state="stp_updating"],
.live-badge[data-state="link_updating"],
.live-badge[data-state="playing"] {
  --status-dot: var(--blue);
  --status-glow: rgb(75 145 247 / 45%);
  color: #2e6eaf;
  border-color: #c8def5;
  background: #eef6ff;
}

.live-badge[data-state="paused"] {
  --status-dot: var(--orange);
  color: #98601f;
  border-color: #efd9bd;
  background: #fff7ed;
}

.live-badge[data-state="error"] {
  --status-dot: var(--red);
  color: #ae343d;
  border-color: #f0c9cc;
  background: #fff1f2;
}

.live-badge.is-running i {
  animation: live-pulse 1.3s ease-out infinite;
}

@keyframes live-pulse {
  0% { box-shadow: 0 0 0 0 var(--status-glow); }
  75%, 100% { box-shadow: 0 0 0 5px transparent; }
}

.canvas-stats {
  display: flex;
  gap: 24px;
}

.canvas-stats div {
  display: grid;
  gap: 3px;
}

.canvas-stats span {
  color: var(--subtle);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.canvas-stats strong {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 10px;
}

.traceroute-summary {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
  min-height: 38px;
  padding: 6px 18px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: #0d1825;
}

.traceroute-summary[hidden] {
  display: none;
}

.traceroute-summary-label {
  display: grid;
  flex: 0 0 auto;
  gap: 2px;
}

.traceroute-summary-label strong {
  flex: 0 0 auto;
  color: var(--subtle);
  font-size: 8px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.traceroute-summary-label span {
  color: #8395a8;
  font-size: 8px;
  white-space: nowrap;
}

.traceroute-summary ol {
  display: flex;
  min-width: 0;
  margin: 0;
  padding: 0 2px;
  gap: 6px;
  overflow-x: auto;
  list-style: none;
  scrollbar-width: thin;
}

.traceroute-hop {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 5px;
  height: 24px;
  padding: 0 8px 0 5px;
  color: #b8c8d9;
  border: 1px solid #30455c;
  border-radius: 999px;
  background: #142232;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
}

.traceroute-hop-address {
  color: inherit;
  font-weight: 750;
}

.traceroute-hop-device {
  color: #8395a8;
}

.traceroute-hop-number {
  display: inline-grid;
  place-items: center;
  width: 15px;
  height: 15px;
  color: #8ebcff;
  border-radius: 50%;
  background: #1b3b61;
  font-size: 8px;
  font-weight: 800;
}

.traceroute-hop.is-timeout {
  color: #9aabba;
  border-style: dashed;
}

.traceroute-hop.is-reached {
  color: #bff2df;
  border-color: #327c67;
  background: #12372f;
}

.traceroute-hop.is-reached .traceroute-hop-number {
  color: #d7faed;
  background: #267259;
}

.topology-stage {
  position: relative;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  background-color: var(--canvas);
}

.topology-scroll {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}

.topology-scroll:focus-visible {
  outline: 2px solid rgb(75 145 247 / 55%);
  outline-offset: -2px;
}

.topology-surface {
  position: relative;
  min-width: 100%;
  min-height: 100%;
  overflow: hidden;
  background-color: var(--canvas);
  background-image: radial-gradient(circle, #cfd9e6 0.7px, transparent 0.8px);
  background-size: 18px 18px;
}

.topology-surface::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  background: radial-gradient(circle at 50% 42%, rgb(255 255 255 / 75%), transparent 55%);
}

.link-layer,
.link-label-layer,
.node-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.link-label-layer {
  z-index: 2;
  overflow: hidden;
  pointer-events: none;
}

.link-line {
  fill: none;
  stroke: #aebdce;
  stroke-dasharray: 6 7;
  stroke-linecap: round;
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
  transition: 300ms ease;
}

.link-line.is-discovered {
  stroke: #5a718a;
  stroke-dasharray: 0;
  stroke-width: 2.2;
}

.link-line.is-trace-path {
  stroke: #2378f3;
  stroke-dasharray: 0;
  stroke-width: 3.4;
  filter: url(#linkGlow);
}

.link-line.is-active {
  stroke: var(--blue);
  stroke-width: 3;
  filter: url(#linkGlow);
}

.link-line.is-broadcast {
  stroke: var(--orange);
  stroke-dasharray: 7 5;
  stroke-width: 3;
  animation: dash-flow 600ms linear infinite;
}

.link-line.is-lldp {
  stroke: var(--green);
  stroke-dasharray: 3 7;
  stroke-width: 3;
  animation: dash-flow 800ms linear infinite;
}

.link-line.is-drop {
  stroke: var(--red);
  stroke-width: 3;
}

.link-line.is-stp-blocked {
  opacity: .68;
  stroke: var(--red);
  stroke-dasharray: 2 7;
  stroke-width: 2.4;
}

.link-line.is-down {
  opacity: .72;
  stroke: #d44c55;
  stroke-dasharray: 3 8;
  stroke-width: 2.5;
  filter: none;
}

@keyframes dash-flow {
  to { stroke-dashoffset: -24; }
}

.link-port-label,
.link-cost-label {
  position: absolute;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  white-space: nowrap;
  transform: translate(-50%, -50%);
}

.link-port-label {
  min-height: 22px;
  padding: 3px 7px;
  color: #607287;
  border: 1px solid #cad5e0;
  border-radius: 5px;
  background: rgb(250 252 254 / 96%);
  box-shadow: 0 1px 3px rgb(25 45 68 / 8%);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 11px;
  font-weight: 650;
}

.link-port-label.is-stp-blocked {
  color: #ff9a9f;
  border-color: #8f4249;
  background: rgb(58 27 35 / 96%);
}

.link-port-label.is-down {
  color: #bd3942;
  border-color: #e5aeb2;
  background: rgb(255 241 242 / 96%);
}

.link-cost-label {
  min-height: 18px;
  padding: 2px 7px;
  color: #66768a;
  border: 1px solid #d6dee7;
  border-radius: 999px;
  background: rgb(250 252 254 / 94%);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.link-state-toggle {
  pointer-events: auto;
  appearance: none;
  cursor: pointer;
}

.link-state-toggle:hover:not(:disabled),
.link-state-toggle:focus-visible {
  color: #1761c8;
  border-color: #78aef7;
  outline: none;
  box-shadow: 0 0 0 3px rgb(35 120 243 / 15%);
}

.link-state-toggle.is-up::before,
.link-state-toggle.is-down::before {
  width: 6px;
  height: 6px;
  margin-right: 5px;
  border-radius: 50%;
  content: "";
}

.link-state-toggle.is-up::before {
  background: var(--green);
}

.link-state-toggle.is-down {
  color: #bd3942;
  border-color: #e5aeb2;
  background: rgb(255 241 242 / 96%);
}

.link-state-toggle.is-down::before {
  background: var(--red);
}

.link-state-toggle:disabled {
  cursor: wait;
}

.lldp-badge circle {
  fill: #e6f8f1;
  stroke: #8bd6bc;
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.lldp-badge path {
  fill: none;
  stroke: var(--green);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
}

.topology-node {
  position: absolute;
  z-index: 3;
  width: 146px;
  min-height: 82px;
  padding: 0;
  text-align: left;
  border: 1px solid #d3dde8;
  border-radius: 10px;
  background: rgb(255 255 255 / 96%);
  box-shadow: 0 4px 12px rgb(25 45 68 / 8%);
  cursor: pointer;
  transform: translate(-50%, -50%);
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.topology-node:hover {
  border-color: #aebed0;
  box-shadow: 0 7px 18px rgb(25 45 68 / 13%);
  transform: translate(-50%, -52%);
}

.topology-node.is-selected {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgb(35 120 243 / 13%), 0 8px 22px rgb(25 75 140 / 14%);
}

.topology-node.is-packet-location {
  box-shadow: 0 0 0 4px rgb(35 120 243 / 12%), 0 8px 24px rgb(25 75 140 / 18%);
}

.topology-node.is-stp-root:not(.is-selected) {
  border-color: #327c67;
  box-shadow: 0 0 0 2px rgb(54 198 147 / 12%), 0 7px 20px rgb(0 0 0 / 30%);
}

.node-main {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 11px 12px 8px;
}

.node-icon {
  width: 33px;
  height: 33px;
  border-radius: 8px;
}

.topology-node[data-type="switch"] .node-icon,
.topology-node[data-type="router"] .node-icon {
  color: var(--purple);
  border-color: #ded7f7;
  background: #f2effc;
}

.node-copy {
  display: grid;
  min-width: 0;
}

.node-copy strong {
  font-size: 13px;
}

.node-copy span {
  margin-top: 2px;
  overflow: hidden;
  color: var(--muted);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.node-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 24px;
  padding: 4px 11px;
  color: #708096;
  border-top: 1px solid #edf1f5;
  background: #fafbfd;
  border-radius: 0 0 10px 10px;
  font-size: 9px;
}

.node-footer span:first-child {
  max-width: 94px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.stp-root-badge {
  flex: 0 0 auto;
  padding: 2px 5px;
  color: #75dbb6;
  border: 1px solid #327c67;
  border-radius: 999px;
  background: #12372f;
  font-size: 7px;
  font-weight: 800;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.packet-marker {
  --packet-color: var(--blue);
  position: absolute;
  z-index: 8;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  pointer-events: none;
  transform: translate(-50%, -50%);
  transition: left 850ms cubic-bezier(.45, 0, .22, 1), top 850ms cubic-bezier(.45, 0, .22, 1);
}

.packet-marker span {
  display: block;
  width: 11px;
  height: 11px;
  border: 2px solid #fff;
  border-radius: 50%;
  background: var(--packet-color);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--packet-color) 17%, transparent), 0 4px 12px color-mix(in srgb, var(--packet-color) 40%, transparent);
}

.packet-marker::after {
  position: absolute;
  left: 19px;
  width: 0;
  height: 0;
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  border-left: 6px solid var(--packet-color);
  content: "";
  transform: rotate(var(--packet-angle, 0deg));
  transform-origin: -7px center;
}

.packet-marker.protocol-arp {
  --packet-color: var(--orange);
}

.packet-marker.protocol-lldp {
  --packet-color: var(--green);
}

.packet-marker.protocol-ethernet {
  --packet-color: var(--purple);
}

.packet-marker.protocol-drop {
  --packet-color: var(--red);
}

.packet-marker.protocol-arp span {
  animation: broadcast-pulse 900ms ease-out infinite;
}

.packet-marker.is-settled span {
  animation: none;
}

.topology-stage:not(.is-playing) .link-line.is-broadcast,
.topology-stage:not(.is-playing) .link-line.is-lldp,
.topology-stage:not(.is-playing) .packet-marker.protocol-arp span {
  animation-play-state: paused;
}

.packet-marker.protocol-drop::after {
  left: 20px;
  width: 4px;
  height: 11px;
  border: 0;
  border-radius: 1px;
  background: var(--red);
}

.packet-marker.is-hidden {
  display: none;
}

.drop-marker {
  position: absolute;
  z-index: 9;
  display: grid;
  place-items: center;
  width: 25px;
  height: 25px;
  color: #fff;
  border: 2px solid #fff;
  border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 0 5px rgb(220 62 70 / 18%), 0 5px 14px rgb(130 20 28 / 35%);
  pointer-events: none;
  transform: translate(-50%, -50%);
}

.drop-marker::after {
  position: absolute;
  top: 29px;
  padding: 2px 5px;
  color: #fff;
  border-radius: 4px;
  background: #b72f38;
  content: "Drop";
  font-size: 8px;
  font-weight: 850;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.drop-marker span {
  font-size: 19px;
  font-weight: 750;
  line-height: 1;
  transform: translateY(-1px);
}

.drop-marker.is-hidden {
  display: none;
}

@keyframes broadcast-pulse {
  0% { box-shadow: 0 0 0 0 rgb(240 138 36 / 38%); }
  100% { box-shadow: 0 0 0 15px rgb(240 138 36 / 0%); }
}

.location-toast {
  position: absolute;
  top: 16px;
  left: 18px;
  z-index: 10;
  display: flex;
  gap: 9px;
  align-items: center;
  max-width: calc(100% - 36px);
  padding: 8px 10px;
  border: 1px solid #d9e2ec;
  border-radius: 8px;
  background: rgb(255 255 255 / 92%);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(8px);
}

.location-toast > div {
  display: grid;
  min-width: 0;
}

.location-toast small {
  color: var(--subtle);
  font-size: 8px;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.location-toast strong {
  margin-top: 2px;
  overflow: hidden;
  font-size: 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.location-protocol,
.event-protocol,
.detail-protocol {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 5px;
  font-size: 8px;
  font-weight: 850;
  letter-spacing: 0.06em;
}

.location-protocol {
  min-width: 42px;
  white-space: nowrap;
  padding: 5px 6px;
}

.protocol-system {
  color: #677589;
  background: #edf1f5;
}

.protocol-icmp {
  color: #1761c8;
  background: var(--blue-soft);
}

.protocol-arp {
  color: #a9590b;
  background: var(--orange-soft);
}

.protocol-lldp {
  color: #107c58;
  background: var(--green-soft);
}

.protocol-ethernet {
  color: #5b3fc4;
  background: var(--purple-soft);
}

.protocol-drop {
  color: #bd2f34;
  background: var(--red-soft);
}

.canvas-hint {
  position: absolute;
  right: 14px;
  bottom: 12px;
  z-index: 4;
  display: flex;
  gap: 6px;
  align-items: center;
  color: #7a899c;
  font-size: 9px;
}

.canvas-hint svg {
  width: 13px;
  height: 13px;
}

.inspector-heading {
  min-height: 68px;
}

.lldp-toggle {
  min-width: 92px;
  height: 28px;
  padding: 0 9px;
  color: var(--muted);
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: #142232;
  font-size: 9px;
  font-weight: 750;
  cursor: pointer;
}

.lldp-toggle:hover:not(:disabled) {
  color: var(--ink);
  border-color: #58708a;
  background: #172638;
}

.lldp-toggle.is-enabled {
  color: #75dbb6;
  border-color: #327c67;
  background: #12372f;
}

.lldp-toggle:disabled {
  opacity: .58;
  cursor: default;
}

.inspector-content {
  min-height: 0;
  padding: 14px;
  overflow-y: auto;
}

.inspector-summary {
  gap: 11px;
  margin-bottom: 14px;
  padding-bottom: 13px;
  border-bottom: 1px solid var(--line);
}

.inspector-icon {
  width: 40px;
  height: 40px;
  color: var(--purple);
  border-color: #ddd6f6;
  border-radius: 9px;
  background: #f2effc;
}

.inspector-icon svg {
  width: 21px;
  height: 21px;
}

.inspector-summary-copy {
  display: grid;
  min-width: 0;
}

.inspector-summary-copy strong {
  font-size: 13px;
}

.inspector-summary-copy span {
  margin-top: 3px;
  overflow: hidden;
  color: var(--muted);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.inspector-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 13px;
}

.inspector-tag {
  padding: 4px 7px;
  color: #506176;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: #f8fafc;
  font-size: 9px;
  font-weight: 700;
}

.inspector-tag.is-stp-enabled {
  color: #75dbb6;
  border-color: #327c67;
  background: #12372f;
}

.stp-section {
  padding-bottom: 7px;
  border-bottom: 1px solid var(--line);
}

.stp-section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 7px;
}

.stp-section-heading h3 {
  margin: 0;
  color: #7d8a9b;
  font-size: 9px;
  font-weight: 820;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.stp-status {
  padding: 3px 6px;
  color: #a7b5c5;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: #172638;
  font-size: 7px;
  font-weight: 800;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.stp-status.is-enabled {
  color: #75dbb6;
  border-color: #327c67;
  background: #12372f;
}

.stp-controls {
  display: grid;
  grid-template-columns: minmax(92px, .8fr) minmax(120px, 1.2fr);
  gap: 7px;
  align-items: end;
  margin-bottom: 9px;
}

.stp-toggle,
.stp-priority-field select {
  height: 30px;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: #142232;
  font-size: 9px;
}

.stp-toggle {
  padding: 0 8px;
  font-weight: 750;
  cursor: pointer;
}

.stp-toggle:hover:not(:disabled),
.stp-priority-field select:hover:not(:disabled) {
  border-color: #58708a;
  background: #172638;
}

.stp-toggle.is-enabled {
  color: #75dbb6;
  border-color: #327c67;
  background: #12372f;
}

.stp-toggle:disabled,
.stp-priority-field select:disabled {
  opacity: .58;
  cursor: default;
}

.stp-priority-field {
  display: grid;
  gap: 3px;
  min-width: 0;
  color: var(--muted);
  font-size: 8px;
  font-weight: 750;
}

.stp-priority-field select {
  width: 100%;
  padding: 0 7px;
}

.stp-metrics {
  margin-bottom: 7px;
}

.inspector-section {
  margin-bottom: 12px;
}

.inspector-section > h3 {
  margin: 0 0 7px;
  color: #7d8a9b;
  font-size: 9px;
  font-weight: 820;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.interface-table,
.mini-table {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 7px;
}

.interface-row,
.mini-row {
  display: grid;
  align-items: center;
  min-height: 30px;
  padding: 5px 8px;
  border-bottom: 1px solid #edf1f5;
  font-size: 9px;
}

.interface-row:last-child,
.mini-row:last-child {
  border-bottom: 0;
}

.interface-row {
  grid-template-columns: minmax(54px, .8fr) minmax(70px, 1fr) auto;
  gap: 7px;
}

.interface-state-toggle {
  min-width: 42px;
  height: 22px;
  padding: 0 6px;
  color: #137252;
  border: 1px solid #9bd8c2;
  border-radius: 999px;
  background: #eaf8f3;
  font-size: 8px;
  font-weight: 800;
  cursor: pointer;
}

.interface-state-toggle.is-down {
  color: #bd3942;
  border-color: #e5aeb2;
  background: #fff1f2;
}

.interface-state-toggle:disabled {
  opacity: .58;
  cursor: default;
}

.interface-row strong,
.mini-row strong {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-weight: 700;
}

.interface-row span,
.mini-row span {
  overflow: hidden;
  color: var(--muted);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.inspector-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px;
  margin-bottom: 12px;
}

.metric-card {
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fafbfd;
}

.metric-card span {
  display: block;
  color: var(--muted);
  font-size: 8px;
  font-weight: 750;
  text-transform: uppercase;
}

.metric-card strong {
  display: block;
  margin-top: 4px;
  overflow: hidden;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.data-disclosure {
  margin-bottom: 6px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
}

.data-disclosure summary {
  display: flex;
  align-items: center;
  min-height: 32px;
  padding: 0 9px;
  font-size: 10px;
  font-weight: 720;
  cursor: pointer;
  list-style: none;
}

.data-disclosure summary::-webkit-details-marker {
  display: none;
}

.data-disclosure summary::after {
  margin-left: auto;
  color: #8c99aa;
  content: "+";
  font-size: 14px;
  font-weight: 400;
}

.data-disclosure[open] summary::after {
  content: "−";
}

.data-disclosure[open] summary {
  border-bottom: 1px solid var(--line);
  background: #fafbfd;
}

.disclosure-count {
  margin-left: 7px;
  padding: 2px 5px;
  color: #6e7c90;
  border-radius: 99px;
  background: #edf1f5;
  font-size: 8px;
}

.mini-table {
  border: 0;
  border-radius: 0;
}

.mini-row {
  grid-template-columns: minmax(70px, .9fr) minmax(80px, 1.1fr);
  gap: 7px;
}

.mini-row.is-stp-blocked {
  border-left: 3px solid var(--red);
  background: var(--red-soft);
}

.mini-row.is-stp-blocked strong {
  color: #ff9a9f;
}

.mini-row.is-stp-forwarding {
  border-left: 3px solid var(--green);
}

.empty-row {
  padding: 10px;
  color: var(--muted);
  font-size: 9px;
}

.timeline-panel {
  z-index: 12;
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: #fff;
  box-shadow: 0 -5px 20px rgb(23 44 67 / 6%);
}

.timeline-toolbar {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: space-between;
  min-height: 58px;
  padding: 8px 18px;
  border-bottom: 1px solid var(--line);
}

.timeline-legend {
  display: flex;
  gap: 5px;
}

.timeline-view-toggle {
  display: flex;
  padding: 2px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #f4f7fa;
}

.view-chip {
  height: 22px;
  padding: 0 9px;
  color: #718096;
  border: 0;
  border-radius: 5px;
  background: transparent;
  font-size: 9px;
  font-weight: 750;
  cursor: pointer;
}

.view-chip:hover,
.view-chip.is-active {
  color: #244c80;
  background: #fff;
  box-shadow: 0 1px 3px rgb(29 54 84 / 12%);
}

.view-chip:disabled {
  cursor: not-allowed;
  opacity: .5;
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 26px;
  padding: 0 9px;
  color: #69788c;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  font-size: 9px;
  font-weight: 700;
  cursor: pointer;
}

.filter-chip:hover,
.filter-chip.is-active {
  color: #35475c;
  border-color: #bdc9d7;
  background: #f4f7fa;
}

.filter-chip i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.chip-lldp { background: var(--green); }
.chip-arp { background: var(--orange); }
.chip-icmp { background: var(--blue); }
.chip-ethernet { background: var(--purple); }

.timeline-download {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 6px;
  height: 28px;
  padding: 0 9px;
  color: #b8d5ff;
  border: 1px solid #315d91;
  border-radius: 6px;
  background: #112842;
  font-size: 9px;
  font-weight: 750;
  cursor: pointer;
}

.timeline-download svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.timeline-download:hover:not(:disabled) {
  color: #d8e8ff;
  border-color: var(--blue);
  background: var(--blue-soft);
}

.timeline-download:disabled {
  cursor: not-allowed;
  opacity: .45;
}

.timeline-layout {
  display: grid;
  grid-template-columns: minmax(620px, 1fr) minmax(280px, 31%);
  flex: 1;
  min-height: 0;
}

.event-log {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  border-right: 1px solid var(--line);
}

.event-table-head,
.event-row {
  display: grid;
  grid-template-columns: 70px 76px minmax(160px, .85fr) minmax(220px, 1.5fr) 90px;
  column-gap: 8px;
  align-items: center;
}

.event-table-head {
  flex: 0 0 auto;
  min-height: 27px;
  padding: 0 14px 0 21px;
  color: #8b98a9;
  border-bottom: 1px solid var(--line);
  background: #fafbfd;
  font-size: 8px;
  font-weight: 800;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.event-list {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  scroll-behavior: smooth;
}

.event-row {
  position: relative;
  width: 100%;
  min-height: 38px;
  padding: 5px 14px 5px 21px;
  text-align: left;
  border: 0;
  border-bottom: 1px solid #edf1f5;
  background: #fff;
  cursor: pointer;
}

.event-row::before {
  position: absolute;
  top: 50%;
  left: 8px;
  width: 5px;
  height: 5px;
  border: 1px solid #aebac8;
  border-radius: 50%;
  background: #fff;
  content: "";
  transform: translateY(-50%);
}

.event-row:hover {
  background: #f8fafc;
}

.event-row.is-completed::before {
  border-color: var(--green);
  background: var(--green);
}

.event-row.is-current {
  background: #eef5ff;
  box-shadow: inset 3px 0 0 var(--blue);
}

.event-row.is-current::before {
  border-color: var(--blue);
  background: var(--blue);
  box-shadow: 0 0 0 3px rgb(35 120 243 / 15%);
}

.event-time,
.event-path,
.event-copy {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.event-time {
  color: #647389;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
}

.event-protocol {
  justify-self: start;
  min-width: 40px;
  padding: 4px 6px;
}

.event-path {
  color: #495a70;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
}

.event-copy {
  color: #304158;
  font-size: 10px;
  font-weight: 600;
}

.event-result {
  justify-self: start;
  gap: 5px;
  color: #52705f;
  font-size: 9px;
  font-weight: 700;
}

.event-result::before {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--green);
  content: "";
}

.event-result.is-dropped {
  color: var(--red);
}

.event-result.is-dropped::before {
  background: var(--red);
}

.event-detail {
  min-width: 0;
  padding: 13px 16px;
  overflow-y: auto;
  background: #fbfcfe;
}

.detail-title {
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 9px;
}

.detail-title h3 {
  margin: 0;
  font-size: 12px;
}

.detail-protocol {
  padding: 4px 6px;
}

.detail-why {
  margin: 0 0 11px;
  color: #516176;
  font-size: 10px;
  line-height: 1.5;
}

.decision-box {
  margin-bottom: 10px;
  padding: 8px 9px;
  color: #2e5e4c;
  border: 1px solid #cce9de;
  border-radius: 7px;
  background: #eff9f5;
  font-size: 9px;
  line-height: 1.45;
}

.decision-box strong {
  display: block;
  margin-bottom: 2px;
  color: #177955;
  font-size: 8px;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
}

.detail-field {
  min-width: 0;
  padding: 6px 7px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
}

.detail-field span,
.detail-field strong {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.detail-field span {
  color: #8895a5;
  font-size: 7px;
  font-weight: 800;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.detail-field strong {
  margin-top: 3px;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 8px;
}

.empty-detail {
  display: grid;
  place-items: center;
  height: 100%;
  color: var(--muted);
  text-align: center;
  font-size: 10px;
  line-height: 1.5;
}

.notice {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 100;
  max-width: 330px;
  padding: 10px 12px;
  color: #fff;
  border-radius: 8px;
  background: #172a40;
  box-shadow: var(--shadow-md);
  font-size: 11px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: 180ms ease;
}

.notice.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.notice.is-error {
  color: #ffe8ea;
  border: 1px solid #a9444b;
  background: #481f27;
}

.count-badge,
.event-count,
.search-box input,
.inspector-tag,
.metric-card,
.data-disclosure,
.filter-chip,
.detail-field {
  color: var(--ink);
  background: #142232;
}

.device-list-item:hover,
.filter-chip:hover,
.filter-chip.is-active,
.event-row:hover,
.data-disclosure[open] summary,
.event-table-head {
  color: var(--ink);
  border-color: var(--line-strong);
  background: #172638;
}

.device-list-item.is-selected,
.event-row.is-current {
  border-color: #315d91;
  background: #142d4d;
}

.list-icon,
.node-icon,
.inspector-icon,
.device-list-item.is-selected .list-icon,
.topology-node[data-type="switch"] .node-icon,
.topology-node[data-type="router"] .node-icon {
  color: #9db3cc;
  border-color: #31465d;
  background: #19293a;
}

.device-list-item.is-selected .list-icon {
  color: #73adff;
}

.topology-node[data-type="switch"] .node-icon,
.topology-node[data-type="router"] .node-icon,
.inspector-icon {
  color: var(--purple);
  border-color: #443c70;
  background: #282342;
}

.protocol-key,
.node-footer,
.event-detail {
  background: #0d1825;
}

.canvas-heading {
  background: rgb(16 27 41 / 92%);
}

.topology-surface {
  background-image: radial-gradient(circle, #26384b 0.7px, transparent 0.8px);
}

.topology-surface::before {
  background: radial-gradient(circle at 50% 42%, rgb(31 54 79 / 24%), transparent 58%);
}

.link-line {
  stroke: #3b5068;
}

.link-line.is-discovered {
  stroke: #71869d;
}

.link-port-label {
  color: #a9b9ca;
  border-color: #3d5269;
  background: rgb(19 33 48 / 96%);
  box-shadow: 0 2px 5px rgb(0 0 0 / 22%);
}

.link-cost-label {
  color: #9dafc1;
  border-color: #34495f;
  background: rgb(16 29 43 / 94%);
}

.link-port-label.is-down,
.link-state-toggle.is-down {
  color: #ff9a9f;
  border-color: #8f4249;
  background: rgb(58 27 35 / 96%);
}

.interface-state-toggle {
  color: #75dbb6;
  border-color: #327c67;
  background: #12372f;
}

.interface-state-toggle.is-down {
  color: #ff9a9f;
  border-color: #8f4249;
  background: #3a1b23;
}

.lldp-badge circle {
  fill: #12372f;
  stroke: #327c67;
}

.topology-node {
  border-color: #31445a;
  background: rgb(17 29 43 / 97%);
  box-shadow: 0 7px 20px rgb(0 0 0 / 30%);
}

.topology-node:hover {
  border-color: #58708a;
  box-shadow: 0 10px 26px rgb(0 0 0 / 38%);
}

.node-footer {
  color: var(--muted);
  border-color: var(--line);
}

.location-toast {
  border-color: #31465d;
  background: rgb(15 27 40 / 94%);
}

.protocol-system {
  color: #a9b7c7;
  background: #263547;
}

.protocol-icmp {
  color: #89b9ff;
}

.protocol-arp {
  color: #ffc17e;
}

.protocol-lldp {
  color: #75dbb6;
}

.protocol-ethernet {
  color: #c3b2ff;
}

.protocol-drop {
  color: #ff9a9f;
}

.interface-row,
.mini-row,
.event-row {
  border-color: #203246;
}

.disclosure-count {
  color: #a7b5c5;
  background: #253548;
}

.timeline-panel,
.event-row {
  background: var(--panel);
}

.timeline-panel {
  box-shadow: 0 -7px 24px rgb(0 0 0 / 24%);
}

.event-time,
.event-path,
.event-copy,
.detail-why {
  color: #b1bfd0;
}

.event-result {
  color: #7cd9b8;
}

.decision-box {
  color: #b5d9cd;
  border-color: #295649;
  background: #112d28;
}

.decision-box strong {
  color: #65d5ae !important;
}

.data-disclosure.is-event-table {
  border-color: #4b91f7;
  box-shadow: 0 0 0 2px rgb(75 145 247 / 14%);
}

.data-disclosure.is-event-table > summary {
  color: #b8d5ff;
  background: #142d4d;
}

.mini-row.is-event-entry {
  border-left: 3px solid var(--blue);
  background: #142d4d;
  box-shadow: inset 0 0 20px rgb(75 145 247 / 7%);
}

.mini-row.is-event-entry strong {
  color: #d8e8ff;
}

.used-entry-badge {
  display: inline-block;
  margin-left: 6px;
  padding: 2px 4px;
  color: #d8e8ff;
  border: 1px solid #315d91;
  border-radius: 99px;
  background: #19385f;
  font-family: Inter, ui-sans-serif, sans-serif;
  font-size: 6px;
  font-weight: 850;
  letter-spacing: .07em;
  text-transform: uppercase;
  vertical-align: 1px;
}

.table-event-status {
  display: grid;
  gap: 2px;
  padding: 9px;
  color: #b8d5ff;
  border-bottom: 1px solid #315d91;
  background: #112842;
  font-size: 8px;
}

.table-event-status strong {
  font-size: 9px;
}

.table-event-status.is-miss,
.table-event-status.is-broadcast {
  color: #ffc17e;
  border-color: #654525;
  background: #322414;
}

.event-table-reference {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px 8px;
  margin-bottom: 10px;
  padding: 8px 9px;
  color: #b8d5ff;
  border: 1px solid #315d91;
  border-radius: 7px;
  background: #112842;
  font-size: 8px;
}

.event-table-reference span {
  grid-row: 1 / 3;
  align-self: center;
  padding: 4px 6px;
  border-radius: 5px;
  background: #19385f;
  font-weight: 800;
}

.event-table-reference strong,
.event-table-reference small {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.event-table-reference small {
  color: #8fb4e6;
}

.event-table-reference.is-miss,
.event-table-reference.is-broadcast {
  color: #ffc17e;
  border-color: #654525;
  background: #322414;
}

.event-table-reference.is-miss span,
.event-table-reference.is-broadcast span {
  background: #4a331c;
}

.notice {
  border: 1px solid #344b63;
  background: #162638;
}

* {
  scrollbar-color: #3b5068 #0d1825;
}

@media (max-width: 1180px) {
  .topbar {
    grid-template-columns: 220px 1fr auto;
    gap: 15px;
  }

  .app-shell {
    --devices-col: 190px;
    --inspector-col: 300px;
  }

  .workspace {
    grid-template-columns: var(--devices-col) minmax(390px, 1fr) var(--inspector-col);
  }

  .button {
    padding: 0 9px;
  }

}

@media (max-width: 980px) {
  .app-shell {
    height: auto;
    min-height: 100vh;
    overflow: visible;
  }

  .topbar {
    grid-template-columns: 1fr auto;
  }

  .scenario-block {
    grid-column: 1 / -1;
    padding-top: 10px;
    padding-left: 0;
    border-top: 1px solid rgb(255 255 255 / 10%);
    border-left: 0;
  }

  .app-shell {
    --devices-col: 180px;
  }

  .workspace {
    grid-template-columns: var(--devices-col) minmax(420px, 1fr);
    height: 540px;
    min-height: 540px;
  }

  .inspector-panel {
    display: none;
  }

  .timeline-layout {
    grid-template-columns: 1fr 300px;
    min-height: 260px;
  }
}

@media (max-width: 720px) {
  .app-shell {
    display: block;
  }

  .topbar {
    position: sticky;
    top: 0;
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .toolbar {
    justify-content: start;
    overflow-x: auto;
  }

  .workspace {
    display: block;
    height: auto;
  }

  .device-panel {
    display: none;
  }

  .canvas-panel {
    height: 560px;
  }

  .canvas-stats {
    display: none;
  }

  .timeline-panel {
    min-height: 520px;
  }

  .is-timeline-collapsed .timeline-panel {
    min-height: 0;
  }

  .timeline-toolbar-actions {
    align-items: flex-start;
    flex-wrap: wrap;
    justify-content: space-between;
    width: 100%;
  }

  .timeline-toolbar {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
    padding: 12px;
  }

  .timeline-layout {
    display: block;
  }

  .event-log {
    height: 300px;
    border-right: 0;
  }

  .event-detail {
    min-height: 210px;
    border-top: 1px solid var(--line);
  }

  .event-table-head,
  .event-row {
    grid-template-columns: 61px 62px minmax(130px, 1fr) 70px;
  }

  .event-table-head span:nth-child(4),
  .event-row .event-copy {
    display: none;
  }
}