@font-face {
  font-family:Inter;
  src:url('/fonts/InterVariable.woff2') format('woff2');
  font-weight:100 900;
  font-style:normal;
  font-display:swap;
}
:root {
  --nc-ink:#a4410a;
  --nc-soft:#fff3e9;
  --nc-orange-border:#f7d8bd;
  --nc-shadow:0 4px 24px #15223905;
  --nc-terminal:#101923;
  --nc-terminal-text:#d7e2ed;
}
[data-ecv-mode=dark] {
  --nc-ink:#ffbc86;
  --nc-soft:#30251f;
  --nc-orange-border:#75513b;
  --nc-shadow:none;
}
* {
  box-sizing:border-box;
}
body.ecv-ui {
  margin:0;
  font:400 15px/1.65 Inter,system-ui,sans-serif;
  background:var(--ecv-bg);
  color:var(--ecv-text);
}
button,input,a {
  -webkit-tap-highlight-color:transparent;
}
button,a {
  touch-action:manipulation;
}
button {
  cursor:pointer;
}
a {
  color:inherit;
  text-decoration:none;
}
button:disabled {
  cursor:not-allowed;
}
h1,h2,h3,p {
  margin:0;
}
h1,h2,h3 {
  font-weight:600;
  line-height:1.25;
  letter-spacing:-.045em;
}
h1 {
  font-size:clamp(28px,3.1vw,39px);
}
h2 {
  font-size:24px;
}
h3 {
  font-size:21px;
}
p {
  line-height:1.75;
}
button,input {
  font:inherit;
}
svg.ui-icon {
  width:20px;
  height:20px;
  flex:none;
  vertical-align:middle;
}
.ecv-ui [hidden] {
  display:none!important;
}
.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;
}
.skip-link {
  position:fixed;
  top:-80px;
  left:20px;
  z-index:100;
  background:var(--ecv-surface);
  padding:12px;
  border:2px solid var(--ecv-accent);
}
.skip-link:focus {
  top:10px;
}
.muted {
  color:var(--ecv-muted);
}
.small {
  font-size:13px;
}
.eyebrow {
  font-size:10px;
  letter-spacing:1.65px;
  font-weight:600;
  color:var(--ecv-muted);
}
.text-link {
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--nc-ink);
  font-size:13px;
  font-weight:600;
  min-height:44px;
}
.text-link:hover {
  text-decoration:underline;
}
.text-link .ui-icon {
  width:17px;
  height:17px;
}
.demo-label {
  display:inline-flex;
  align-items:center;
  gap:7px;
  align-self:flex-start;
  font-size:11px;
  font-weight:500;
  padding:5px 10px;
  border:1px solid var(--nc-orange-border);
  border-radius:6px;
  color:var(--nc-ink);
  background:var(--nc-soft);
  white-space:nowrap;
}
.demo-label .ui-icon {
  width:14px;
  height:14px;
}
.topbar {
  height:84px;
  padding:0 34px;
  background:var(--ecv-surface);
  border-bottom:1px solid var(--ecv-border);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand {
  min-height:44px;
  display:flex;
  align-items:center;
  gap:20px;
  min-width:0;
}
.brand-logo {
  display:block;
  position:relative;
  width:157px;
  height:38px;
  overflow:hidden;
  flex-shrink:0;
}
.brand-logo .logo-light {
  position:absolute;
  max-width:none;
  width:195px;
  height:195px;
  left:-18px;
  top:-81px;
}
.brand-logo .logo-dark {
  display:none;
  position:absolute;
  width:157px;
  top:3px;
  left:0;
}
[data-ecv-mode=dark] .brand-logo .logo-light {
  display:none;
}
[data-ecv-mode=dark] .brand-logo .logo-dark {
  display:block;
}
.app-brand {
  padding-left:20px;
  border-left:1px solid var(--ecv-border);
  display:grid;
  gap:2px;
  white-space:nowrap;
  line-height:1.4;
}
.app-brand small {
  font-size:9px;
  letter-spacing:2px;
  color:var(--ecv-muted);
}
.app-brand strong {
  font-size:16px;
  font-weight:600;
}
.main-nav {
  display:flex;
  align-items:center;
  gap:5px;
  background:var(--ecv-bg);
  border:1px solid var(--ecv-border);
  border-radius:9px;
  padding:4px;
}
.main-nav a {
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:4px 15px;
  border-radius:6px;
  color:var(--ecv-muted);
  font-size:13px;
}
.main-nav a .ui-icon {
  width:16px;
  height:16px;
}
.main-nav a[aria-current] {
  color:var(--nc-ink);
  background:var(--ecv-surface);
  box-shadow:0 1px 4px #0000000a;
  font-weight:600;
}
.main-nav a:hover {
  color:var(--nc-ink);
}
.header-actions {
  display:flex;
  gap:16px;
  align-items:center;
}
.header-xp {
  display:flex;
  align-items:center;
  gap:5px;
  font-size:13px;
  font-weight:600;
  color:var(--nc-ink);
  white-space:nowrap;
}
.header-xp .ui-icon {
  width:17px;
}
.icon-button {
  display:inline-grid;
  place-items:center;
  flex-shrink:0;
  width:44px;
  height:44px;
  border:1px solid var(--ecv-border);
  border-radius:8px;
  background:var(--ecv-surface);
  color:var(--ecv-muted);
  font-size:25px;
}
.icon-button:hover {
  background:var(--ecv-bg);
}
.avatar {
  width:44px;
  height:44px;
  border-radius:50%;
  border:1px solid var(--nc-orange-border);
  color:var(--nc-ink);
  background:var(--nc-soft);
  font-size:14px;
  font-weight:600;
}
main {
  max-width:1440px;
  margin:0 auto;
  padding:42px 46px 28px;
}
main:focus {
  outline:none;
}
.page-intro {
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px;
  margin-bottom:28px;
}
.page-intro h1 {
  margin-top:8px;
}
.page-intro p {
  color:var(--ecv-muted);
  font-size:14px;
  margin-top:9px;
}
.page-intro>.demo-label {
  margin-top:26px;
}
.hero {
  display:grid;
  grid-template-columns:1fr .94fr;
  background:var(--ecv-surface);
  border:1px solid var(--ecv-border);
  border-radius:16px;
  overflow:hidden;
  box-shadow:var(--nc-shadow);
}
.hero-copy {
  padding:38px 42px;
}
.hero-kicker {
  display:inline-block;
  font-size:10px;
  letter-spacing:1.6px;
  font-weight:600;
  color:var(--nc-ink);
}
.hero-copy h2 {
  font-size:clamp(34px,3.6vw,49px);
  line-height:1.12;
  margin:18px 0;
  letter-spacing:-2.2px;
}
.hero-copy h2>span {
  color:var(--nc-ink);
}
.hero-copy>p {
  font-size:14px;
  color:var(--ecv-muted);
  max-width:395px;
}
.hero-actions {
  display:flex;
  gap:20px;
  align-items:center;
  flex-wrap:wrap;
  margin-top:24px;
}
.ecv-ui .ecv-btn {
  font-weight:600;
  min-height:46px;
  font-size:13px;
  padding:11px 17px;
  line-height:1.5;
}
.ecv-btn .ui-icon {
  width:17px;
  height:17px;
}
.ecv-ui .ecv-btn--primary {
  color:var(--ecv-on-accent);
}
.hero-footnote {
  display:flex;
  align-items:center;
  gap:6px;
  font-size:11px;
  color:var(--ecv-muted);
  margin-top:22px;
}
.hero-footnote .ui-icon {
  width:14px;
  height:14px;
}
.network-map {
  position:relative;
  min-width:0;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  background-color:var(--nc-soft);
  background-image:radial-gradient(var(--nc-orange-border) 1px,transparent 1px);
  background-size:18px 18px;
  padding:36px 20px 28px;
}
.map-network-label {
  display:flex;
  align-items:center;
  gap:7px;
  font-size:9px;
  letter-spacing:1.1px;
  color:var(--nc-ink);
  padding:7px 12px;
  border:1px solid var(--nc-orange-border);
  border-radius:6px;
  background:var(--ecv-surface);
  white-space:nowrap;
}
.status-dot {
  display:inline-block;
  width:6px;
  height:6px;
  background:#2fa27e;
  border-radius:50%;
  flex-shrink:0;
}
.map-router,.map-host {
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  text-align:center;
}
.map-router {
  margin-top:22px;
}
.device-icon {
  width:46px;
  height:46px;
  object-fit:contain;
}
.map-router .device-icon {
  width:60px;
  height:60px;
}
.map-router strong,.map-host strong {
  font-size:11px;
  font-weight:500;
  margin-top:6px;
  white-space:nowrap;
}
.map-router>span,.map-host>span {
  font:10px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;
  color:var(--ecv-muted);
}
.network-branches {
  display:flex;
  justify-content:space-around;
  width:100%;
  max-width:410px;
  margin-top:32px;
  position:relative;
  padding-top:24px;
}
.network-branches:before {
  content:'';
  position:absolute;
  left:16.66%;
  right:16.66%;
  top:0;
  height:1px;
  background:var(--nc-orange-border);
}
.network-branches:after {
  content:'';
  position:absolute;
  left:50%;
  top:-32px;
  height:32px;
  width:1px;
  background:var(--nc-orange-border);
}
.map-host {
  width:33.33%;
}
.map-host:before {
  content:'';
  position:absolute;
  left:50%;
  top:-24px;
  height:22px;
  width:1px;
  background:var(--nc-orange-border);
}
.map-caption {
  margin-top:24px;
  color:var(--nc-ink);
  font-size:10px;
  letter-spacing:.4px;
}
.stats-grid {
  display:grid;
  grid-template-columns:1fr 1fr 1fr 1.3fr;
  gap:14px;
  margin:20px 0 42px;
}
.stat-card {
  display:flex;
  align-items:center;
  gap:14px;
  padding:20px;
  background:var(--ecv-surface);
  border:1px solid var(--ecv-border);
  border-radius:10px;
}
.stat-symbol {
  width:40px;
  height:40px;
  display:grid;
  place-items:center;
  border-radius:9px;
  flex-shrink:0;
}
.stat-symbol.orange {
  background:var(--nc-soft);
  color:var(--nc-ink);
}
.stat-symbol.blue {
  background:#eff5ff;
  color:#285da6;
}
.stat-symbol.purple {
  background:#f4f0fe;
  color:#7350a7;
}
.stat-card strong {
  display:block;
  font-size:25px;
  font-weight:600;
  line-height:1.3;
  letter-spacing:-.7px;
}
.stat-card strong small {
  font-weight:400;
  font-size:14px;
  color:var(--ecv-muted);
  letter-spacing:0;
}
.stat-card>div>span {
  font-size:11px;
  color:var(--ecv-muted);
}
.progress-stat>div {
  width:100%;
}
.progress-stat strong {
  font-size:11px;
  letter-spacing:0;
  display:flex;
  justify-content:space-between;
  font-weight:500;
}
.progress-stat strong span {
  color:var(--nc-ink);
  font-weight:600;
}
.progress-stat progress {
  width:100%;
  height:6px;
  border:0;
  display:block;
  margin:11px 0 6px;
  border-radius:3px;
  overflow:hidden;
  background:var(--ecv-border);
}
progress::-webkit-progress-bar {
  background:var(--ecv-border);
}
progress::-webkit-progress-value {
  background:var(--ecv-accent);
}
progress::-moz-progress-bar {
  background:var(--ecv-accent);
}
.section-heading {
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:15px;
  margin-bottom:20px;
}
.section-heading h2 {
  margin-top:6px;
  font-size:25px;
}
.section-heading p {
  font-size:13px;
  color:var(--ecv-muted);
  margin-top:7px;
}
.unit-grid {
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.unit-card {
  display:flex;
  flex-direction:column;
  min-width:0;
  background:var(--ecv-surface);
  padding:24px;
  border:1px solid var(--ecv-border);
  border-radius:12px;
  transition:border-color .15s,transform .15s;
}
.unit-card:hover {
  border-color:var(--nc-orange-border);
  transform:translateY(-2px);
}
.unit-card-top {
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom:20px;
  gap:10px;
}
.unit-icon {
  display:grid;
  place-items:center;
  width:48px;
  height:48px;
  background:var(--nc-soft);
  border:1px solid var(--nc-orange-border);
  border-radius:10px;
}
.unit-icon .device-icon {
  width:30px;
  height:30px;
}
.unit-number {
  font-size:10px;
  letter-spacing:1.4px;
  color:var(--ecv-muted);
}
.unit-tag {
  color:var(--nc-ink);
  font-size:11px;
  margin-bottom:7px;
}
.unit-card h3 {
  font-size:20px;
}
.unit-card>p {
  color:var(--ecv-muted);
  font-size:13px;
  margin:10px 0 18px;
  flex:1;
}
.unit-meta {
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  font-size:10px;
  color:var(--ecv-muted);
}
.unit-meta>span {
  display:flex;
  align-items:center;
  gap:5px;
}
.unit-meta .ui-icon {
  width:13px;
  height:13px;
}
.unit-card-bottom {
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-top:20px;
  padding-top:15px;
  border-top:1px solid var(--ecv-border);
}
.level {
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:11px;
  color:var(--ecv-muted);
}
.level>i {
  height:5px;
  width:5px;
  border-radius:50%;
  background:var(--nc-ink);
}
.unit-card-bottom a {
  height:44px;
  width:44px;
  display:grid;
  place-items:center;
  background:var(--nc-soft);
  color:var(--nc-ink);
  border-radius:8px;
}
.unit-card-bottom a:hover {
  background:var(--nc-orange-border);
}
.challenge-banner {
  display:flex;
  align-items:center;
  gap:22px;
  background:var(--ecv-surface);
  border:1px solid var(--ecv-border);
  border-radius:12px;
  padding:25px 28px;
  margin:28px 0 18px;
}
.banner-icon {
  width:50px;
  height:50px;
  display:grid;
  place-items:center;
  border:1px solid var(--nc-orange-border);
  border-radius:50%;
  background:var(--nc-soft);
  color:var(--nc-ink);
  flex-shrink:0;
}
.banner-icon .ui-icon {
  width:26px;
  height:26px;
}
.challenge-banner h2 {
  font-size:20px;
  margin:6px 0;
}
.challenge-banner p {
  color:var(--ecv-muted);
  font-size:12px;
}
.challenge-banner .ecv-btn {
  margin-left:auto;
  white-space:nowrap;
}
.demo-disclosure {
  font-size:11px;
  color:var(--ecv-muted);
}
.site-footer {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin:0 46px;
  padding:22px 0;
  border-top:1px solid var(--ecv-border);
  color:var(--ecv-muted);
  font-size:10px;
}
.site-footer span span {
  margin:0 8px;
  color:var(--ecv-border);
}
.route-overview {
  display:flex;
  gap:25px;
  flex-wrap:wrap;
  color:var(--ecv-muted);
  font-size:13px;
  margin-bottom:30px;
}
.route-overview>span {
  display:flex;
  align-items:center;
  gap:7px;
}
.route-overview .ui-icon {
  width:17px;
}
.learning-note {
  display:flex;
  align-items:flex-start;
  gap:16px;
  margin-top:28px;
  padding:25px;
  border:1px solid var(--ecv-border);
  border-radius:12px;
  background:var(--ecv-surface);
}
.learning-note>.ui-icon {
  margin-top:2px;
  color:var(--nc-ink);
}
.learning-note h2 {
  font-size:18px;
  margin-bottom:8px;
}
.learning-note p {
  font-size:14px;
  color:var(--ecv-muted);
  max-width:800px;
}
.filters {
  display:flex;
  gap:8px;
  flex-wrap:wrap;
  margin:28px 0 12px;
}
.filter-button {
  background:var(--ecv-surface);
  border:1px solid var(--ecv-border);
  color:var(--ecv-muted);
  min-height:44px;
  border-radius:8px;
  padding:9px 16px;
  font-size:13px;
}
.filter-button[aria-pressed=true] {
  background:var(--nc-soft);
  border-color:var(--nc-orange-border);
  color:var(--nc-ink);
}
.result-count {
  margin-bottom:20px;
}
.challenge-grid {
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;
}
.challenge-card {
  display:flex;
  flex-direction:column;
  min-width:0;
  padding:24px;
  background:var(--ecv-surface);
  border:1px solid var(--ecv-border);
  border-radius:12px;
}
.challenge-top {
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:10px;
  margin-bottom:22px;
}
.challenge-index {
  font-size:10px;
  letter-spacing:1.3px;
  color:var(--ecv-muted);
}
.difficulty-bars {
  display:flex;
  gap:3px;
  align-items:flex-end;
}
.difficulty-bars i {
  width:4px;
  height:14px;
  background:var(--ecv-border);
  border-radius:1px;
}
.difficulty-bars i:nth-child(1) {
  height:5px;
}
.difficulty-bars i:nth-child(2) {
  height:8px;
}
.difficulty-bars i:nth-child(3) {
  height:11px;
}
.difficulty-bars i:nth-child(5) {
  height:17px;
}
.difficulty-bars i.filled {
  background:var(--ecv-accent);
}
.challenge-card h2 {
  font-size:19px;
}
.challenge-card>p {
  color:var(--ecv-muted);
  font-size:13px;
  margin:12px 0 20px;
  flex:1;
}
.challenge-card-bottom {
  display:flex;
  justify-content:space-between;
  align-items:center;
  border-top:1px solid var(--ecv-border);
  padding-top:10px;
  gap:8px;
}
.lab-page {
  padding-top:25px;
}
.lab-breadcrumb {
  display:flex;
  align-items:center;
  gap:9px;
  color:var(--ecv-muted);
  font-size:12px;
  min-height:36px;
  flex-wrap:wrap;
}
.lab-breadcrumb a {
  display:inline-flex;
  align-items:center;
  min-height:44px;
}
.lab-breadcrumb a:hover {
  color:var(--nc-ink);
}
.lab-breadcrumb .ui-icon {
  width:13px;
  height:13px;
}
.lab-heading {
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px;
  margin:10px 0 28px;
}
.lab-heading h1 {
  font-size:32px;
  margin-top:7px;
}
.lab-heading p {
  color:var(--ecv-muted);
  font-size:14px;
  margin-top:8px;
}
.lab-grid {
  display:grid;
  grid-template-columns:minmax(235px,310px) minmax(0,1fr);
  gap:24px;
  align-items:start;
}
.mission-panel {
  padding:25px;
  background:var(--ecv-surface);
  border:1px solid var(--ecv-border);
  border-radius:12px;
}
.panel-kicker {
  color:var(--nc-ink);
  font-size:10px;
  letter-spacing:1.7px;
  font-weight:600;
}
.mission-panel h2 {
  font-size:21px;
  margin:12px 0;
}
.mission-panel>p {
  font-size:14px;
  color:var(--ecv-muted);
}
.mission-objective {
  margin:24px 0;
  padding:16px;
  background:var(--nc-soft);
  border:1px solid var(--nc-orange-border);
  border-radius:8px;
}
.mission-objective>span {
  display:flex;
  align-items:center;
  gap:6px;
  color:var(--nc-ink);
  font-size:12px;
  font-weight:600;
}
.mission-objective .ui-icon {
  width:16px;
  height:16px;
}
.mission-objective p {
  font-size:13px;
  margin-top:8px;
}
.mission-step {
  display:flex;
  align-items:flex-start;
  gap:12px;
  margin:18px 0;
}
.mission-step>span {
  font-size:11px;
  border:1px solid var(--ecv-border);
  border-radius:50%;
  width:25px;
  height:25px;
  display:grid;
  place-items:center;
  flex:none;
  color:var(--ecv-muted);
}
.mission-step strong {
  font-size:12px;
  font-weight:600;
}
.mission-step p {
  font-size:12px;
  color:var(--ecv-muted);
  margin-top:3px;
}
.mission-reward {
  display:flex;
  align-items:center;
  gap:10px;
  padding-top:18px;
  margin-top:25px;
  border-top:1px solid var(--ecv-border);
  color:var(--nc-ink);
}
.mission-reward strong {
  display:block;
  font-size:13px;
  font-weight:500;
}
.mission-reward span {
  display:block;
  font-size:10px;
  color:var(--ecv-muted);
}
.lab-workspace {
  min-width:0;
}
.terminal-window {
  background:var(--nc-terminal);
  border:1px solid #293746;
  border-radius:12px;
  overflow:hidden;
  color:var(--nc-terminal-text);
}
.terminal-top {
  display:flex;
  align-items:center;
  gap:12px;
  background:#17232f;
  padding:15px 18px;
  border-bottom:1px solid #2b3a49;
}
.terminal-dots {
  display:flex;
  gap:5px;
}
.terminal-dots i {
  width:7px;
  height:7px;
  background:#f08d78;
  border-radius:50%;
}
.terminal-dots i:nth-child(2) {
  background:#ebc675;
}
.terminal-dots i:nth-child(3) {
  background:#78b79b;
}
.terminal-top h2 {
  font-size:11px;
  letter-spacing:0;
  font-weight:400;
  display:flex;
  align-items:center;
  gap:7px;
}
.terminal-top .ui-icon {
  width:14px;
  height:14px;
}
.terminal-tag {
  margin-left:auto;
  color:#afbfcc;
  font-size:8px;
  letter-spacing:1px;
}
.terminal-body {
  padding:24px;
  min-height:290px;
  font:12px/1.9 ui-monospace,SFMono-Regular,Consolas,monospace;
  overflow-x:auto;
}
.terminal-intro {
  color:#f9ad71;
  margin-bottom:15px;
}
.terminal-intro>span {
  color:#afbfcc;
}
.terminal-body strong {
  font-weight:400;
  color:#d5e5ef;
}
.terminal-comment {
  margin:18px 0;
  color:#a4b7c9;
}
.terminal-placeholder {
  margin:18px 0;
  color:#e4c28d;
}
.terminal-prompt {
  display:flex;
  gap:10px;
  align-items:center;
  white-space:nowrap;
}
.terminal-prompt>span {
  color:#9ec9b8;
}
.terminal-prompt b {
  font-weight:400;
  color:#f8a468;
}
.terminal-prompt input {
  font:inherit;
  min-width:150px;
  flex:1;
  width:100%;
  border:0;
  background:transparent;
  color:#adbfcc;
  padding:5px;
}
.terminal-prompt input::placeholder {
  color:#a4b7c9;
  opacity:1;
}
.terminal-bottom {
  padding:10px 18px;
  border-top:1px solid #293746;
  display:flex;
  align-items:center;
  gap:7px;
  color:#adbfcc;
  font-size:10px;
}
.terminal-bottom>span:last-child {
  margin-left:auto;
}
.scenario-panel {
  background:var(--ecv-surface);
  border:1px solid var(--ecv-border);
  border-radius:12px;
  margin-top:20px;
  overflow:hidden;
}
.scenario-heading {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:16px 20px;
  border-bottom:1px solid var(--ecv-border);
}
.scenario-heading h2 {
  display:flex;
  align-items:center;
  gap:7px;
  font-size:13px;
  letter-spacing:0;
  font-weight:500;
}
.scenario-heading .ui-icon {
  height:16px;
  width:16px;
  color:var(--nc-ink);
}
.compact-map {
  padding:20px;
  min-height:260px;
}
.compact-map .map-network-label {
  font-size:9px;
}
.compact-map .map-router {
  margin-top:12px;
}
.compact-map .map-router .device-icon {
  width:42px;
  height:42px;
}
.compact-map .network-branches {
  margin-top:22px;
  padding-top:16px;
  max-width:450px;
}
.compact-map .network-branches:after {
  height:22px;
  top:-22px;
}
.compact-map .map-host:before {
  height:15px;
  top:-16px;
}
.compact-map .device-icon {
  height:34px;
  width:34px;
}
.compact-map .map-caption {
  display:none;
}
.lab-actionbar {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:20px 0 5px;
  margin-top:14px;
}
.lab-actionbar>div>p {
  color:var(--ecv-muted);
  font-size:11px;
  margin-top:6px;
}
.lab-actions {
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
}
.lab-actions .text-link {
  margin-left:6px;
}
.lab-actions button:disabled {
  opacity:.65;
}
.help-dialog,.profile-dialog {
  color:var(--ecv-text);
  background:var(--ecv-surface);
  border:1px solid var(--ecv-border);
  padding:28px;
  border-radius:16px;
  width:min(510px,calc(100% - 28px));
  max-height:calc(100dvh - 40px);
  overflow-y:auto;
  box-shadow:0 16px 90px #0002;
}
.help-dialog {
  margin:20px 20px 20px auto;
  min-height:min(680px,calc(100dvh - 40px));
}
.help-dialog::backdrop,.profile-dialog::backdrop {
  background:#0c17235c;
}
.dialog-top {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-bottom:18px;
}
.dialog-top h2 {
  font-size:23px;
  margin-top:6px;
}
.dialog-top .icon-button {
  border:0;
}
.help-context {
  padding:12px 14px;
  border-radius:8px;
  background:var(--nc-soft);
  color:var(--nc-ink);
  font-size:13px;
  margin-bottom:18px;
}
.help-tabs {
  display:flex;
  border-bottom:1px solid var(--ecv-border);
  margin-bottom:18px;
}
.help-tabs button {
  flex:1;
  min-height:44px;
  font-size:12px;
  color:var(--ecv-muted);
  background:transparent;
  border:0;
  border-bottom:2px solid transparent;
  padding:8px;
}
.help-tabs button[aria-selected=true] {
  color:var(--nc-ink);
  border-bottom-color:var(--ecv-accent);
  font-weight:600;
}
.hint {
  border:1px solid var(--ecv-border);
  border-radius:9px;
  margin-top:13px;
  padding:0 16px;
}
.hint summary {
  padding:15px 0;
  cursor:pointer;
  font-size:13px;
  font-weight:500;
  min-height:44px;
}
.hint summary span {
  font-size:10px;
  letter-spacing:1px;
  margin-right:10px;
  color:var(--nc-ink);
}
.hint p {
  font-size:13px;
  color:var(--ecv-muted);
  margin:0 0 14px;
}
.hint>code {
  display:block;
  overflow-wrap:anywhere;
  margin-bottom:16px;
  font-size:12px;
  color:var(--nc-ink);
}
code {
  font-family:ui-monospace,SFMono-Regular,Consolas,monospace;
}
.search-field {
  display:flex;
  align-items:center;
  gap:10px;
  border:1px solid var(--ecv-border);
  border-radius:8px;
  padding:10px 12px;
  margin-bottom:10px;
  color:var(--ecv-muted);
}
.search-field input {
  min-width:0;
  width:100%;
  background:transparent;
  color:var(--ecv-text);
  border:0;
  min-height:28px;
}
.reference-item {
  padding:15px 0;
  border-bottom:1px solid var(--ecv-border);
}
.reference-item>code {
  display:block;
  font-size:12px;
  color:var(--nc-ink);
  overflow-wrap:anywhere;
}
.reference-item strong {
  display:block;
  font-size:13px;
  font-weight:500;
  margin-top:7px;
}
.reference-item p {
  font-size:12px;
  color:var(--ecv-muted);
  margin-top:5px;
}
#reference-panel>p:last-child {
  margin-top:20px;
}
.profile-dialog>p {
  margin:15px 0;
}
.profile-dialog>.ecv-btn {
  margin-top:10px;
}
[data-ecv-mode=dark] .stat-symbol.blue {
  background:#1d2c45;
  color:#a5c8fc;
}
[data-ecv-mode=dark] .stat-symbol.purple {
  background:#30253e;
  color:#d0b3f1;
}
[data-ecv-mode=dark] .device-icon {
  filter:invert(1) brightness(.95);
}
@media(min-width:1600px) {
  .topbar {
    padding-inline:max(34px,calc((100vw - 1360px)/2));
  }
  .site-footer {
    max-width:1348px;
    margin-inline:auto;
  }
}
@media(max-width:1150px) {
  .topbar {
    padding-inline:24px;
    gap:15px;
  }
  .brand {
    gap:14px;
  }
  .brand-logo {
    width:137px;
  }
  .brand-logo .logo-light {
    width:170px;
    height:170px;
    top:-69px;
    left:-16px;
  }
  .brand-logo .logo-dark {
    width:137px;
    top:5px;
  }
  .app-brand {
    padding-left:14px;
  }
  .app-brand strong {
    font-size:14px;
  }
  .header-actions {
    gap:10px;
  }
  .main-nav a {
    padding-inline:11px;
  }
  main {
    padding:32px 28px;
  }
  .hero-copy {
    padding:32px;
  }
  .hero-copy h2 {
    font-size:42px;
  }
  .hero-actions {
    gap:12px;
  }
  .stats-grid {
    gap:10px;
  }
  .stat-card {
    padding:17px 14px;
    gap:10px;
  }
  .stat-card>div>span {
    font-size:10px;
  }
  .stat-symbol {
    width:34px;
    height:34px;
  }
  .unit-card {
    padding:20px;
  }
  .unit-meta {
    gap:8px;
  }
  .site-footer {
    margin-inline:28px;
  }
  .challenge-banner {
    padding:24px;
  }
  .lab-grid {
    grid-template-columns:260px minmax(0,1fr);
    gap:18px;
  }
  .lab-actionbar {
    align-items:flex-start;
  }
  .lab-actions {
    justify-content:flex-end;
  }
  .lab-actions .text-link {
    width:100%;
    justify-content:flex-end;
  }
  .mission-panel {
    padding:20px;
  }
}
@media(max-width:980px) {
  .topbar {
    height:68px;
    padding-inline:20px;
  }
  .app-brand small {
    display:none;
  }
  .app-brand {
    border:0;
    padding:0;
  }
  .brand-logo {
    width:128px;
  }
  .brand-logo .logo-light {
    width:159px;
    height:159px;
    left:-15px;
    top:-64px;
  }
  .brand-logo .logo-dark {
    width:128px;
    top:6px;
  }
  .app-brand strong {
    font-size:13px;
  }
  .brand {
    gap:12px;
  }
  .main-nav a {
    padding-inline:10px;
    min-height:44px;
  }
  .header-xp {
    display:none;
  }
  .header-actions {
    gap:8px;
  }
  .hero-copy {
    padding:28px;
  }
  .hero-copy h2 {
    font-size:38px;
  }
  .hero-copy>p {
    font-size:13px;
  }
  .hero-actions {
    gap:10px;
  }
  .hero-actions .ecv-btn {
    padding-inline:13px;
  }
  .network-map {
    padding-inline:12px;
  }
  .map-host strong {
    font-size:10px;
  }
  .map-host>span {
    font-size:9px;
  }
  .map-network-label {
    font-size:8px;
    letter-spacing:.7px;
  }
  .stat-card {
    flex-wrap:wrap;
  }
  .progress-stat {
    align-items:center;
  }
  .unit-grid {
    gap:12px;
  }
  .unit-card h3 {
    font-size:18px;
  }
  .unit-card {
    padding:18px;
  }
  .unit-card-top {
    margin-bottom:16px;
  }
  .unit-number {
    font-size:8px;
    letter-spacing:.8px;
  }
  .unit-meta {
    font-size:9px;
  }
  .challenge-grid {
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
  .challenge-banner {
    gap:15px;
  }
  .challenge-banner h2 {
    font-size:18px;
  }
  .challenge-banner .ecv-btn {
    font-size:12px;
  }
  .lab-grid {
    grid-template-columns:230px minmax(0,1fr);
    gap:15px;
  }
  .terminal-top {
    padding-inline:12px;
    gap:8px;
  }
  .terminal-dots {
    display:none;
  }
  .terminal-body {
    padding:18px;
    font-size:11px;
  }
  .terminal-tag {
    font-size:7px;
  }
  .lab-heading h1 {
    font-size:28px;
  }
  .lab-heading p {
    font-size:13px;
  }
  .scenario-heading {
    padding:14px;
  }
  .scenario-heading h2 {
    font-size:12px;
  }
  .scenario-heading>span {
    font-size:10px;
  }
}
@media(max-width:760px) {
  .topbar {
    flex-wrap:wrap;
    height:auto;
    min-height:118px;
    padding:10px 18px;
    gap:8px;
  }
  .brand {
    margin-right:auto;
  }
  .app-brand strong {
    font-size:14px;
  }
  .header-actions {
    order:1;
  }
  .main-nav {
    order:2;
    width:100%;
    justify-content:space-between;
    padding:2px;
    gap:2px;
  }
  .main-nav a {
    flex:1;
    min-height:44px;
  }
  .brand-logo {
    width:125px;
  }
  .brand-logo .logo-light {
    width:155px;
    height:155px;
    top:-62px;
    left:-14px;
  }
  .brand-logo .logo-dark {
    width:125px;
  }
  .page-intro {
    align-items:flex-start;
    flex-direction:column;
    gap:12px;
  }
  .page-intro>.demo-label {
    margin-top:0;
  }
  main {
    padding:26px 20px;
  }
  h1 {
    font-size:30px;
  }
  .page-intro p {
    font-size:14px;
  }
  .hero {
    grid-template-columns:1fr 1fr;
  }
  .hero-copy {
    padding:26px;
  }
  .hero-copy h2 {
    font-size:35px;
    letter-spacing:-1.5px;
  }
  .hero-kicker {
    font-size:8px;
    letter-spacing:1px;
  }
  .hero-copy>p {
    font-size:13px;
  }
  .hero-footnote {
    font-size:10px;
  }
  .hero-actions {
    flex-direction:column;
    align-items:flex-start;
    gap:3px;
  }
  .hero-actions .ecv-btn {
    font-size:12px;
  }
  .map-router .device-icon {
    width:48px;
    height:48px;
  }
  .network-branches {
    margin-top:25px;
    padding-top:20px;
  }
  .network-branches:after {
    top:-25px;
    height:25px;
  }
  .map-host:before {
    top:-20px;
    height:19px;
  }
  .map-host .device-icon {
    width:32px;
    height:32px;
  }
  .map-host strong {
    font-size:8px;
  }
  .map-host>span {
    font-size:7px;
  }
  .map-caption {
    font-size:9px;
  }
  .map-network-label {
    white-space:normal;
    text-align:center;
    max-width:100%;
    font-size:8px;
  }
  .stats-grid {
    grid-template-columns:repeat(2,minmax(0,1fr));
    margin-bottom:32px;
  }
  .stat-card {
    flex-wrap:nowrap;
    min-height:90px;
    padding:16px;
  }
  .unit-grid {
    grid-template-columns:1fr;
  }
  .unit-card {
    padding:24px;
  }
  .unit-card h3 {
    font-size:22px;
  }
  .unit-card-top {
    margin-bottom:15px;
  }
  .unit-number {
    font-size:10px;
    letter-spacing:1.3px;
  }
  .unit-card>p {
    font-size:14px;
    margin-top:10px;
  }
  .unit-meta {
    font-size:11px;
    gap:20px;
  }
  .unit-card-bottom {
    margin-top:18px;
  }
  .unit-icon {
    height:46px;
    width:46px;
  }
  .section-heading h2 {
    font-size:23px;
  }
  .section-heading {
    align-items:flex-end;
  }
  .section-heading>.text-link {
    white-space:nowrap;
    font-size:12px;
  }
  .section-heading p {
    font-size:13px;
  }
  .challenge-banner {
    flex-wrap:wrap;
    padding:22px;
  }
  .challenge-banner>div {
    flex:1;
    min-width:190px;
  }
  .challenge-banner .ecv-btn {
    margin-left:65px;
  }
  .site-footer {
    margin-inline:20px;
    flex-wrap:wrap;
    gap:10px;
    font-size:10px;
  }
  .site-footer>span:nth-child(2) {
    display:none;
  }
  .lab-grid {
    grid-template-columns:1fr;
  }
  .mission-panel {
    padding:22px;
  }
  .mission-panel>p {
    font-size:14px;
  }
  .mission-objective {
    margin:18px 0;
  }
  .mission-step {
    margin:13px 0;
  }
  .mission-step p {
    font-size:13px;
  }
  .mission-reward {
    margin-top:18px;
  }
  .lab-heading {
    align-items:flex-start;
  }
  .lab-heading h1 {
    font-size:27px;
  }
  .lab-heading>button {
    flex-shrink:0;
    padding:10px 13px;
  }
  .lab-heading p {
    font-size:14px;
  }
  .terminal-body {
    min-height:270px;
    font-size:12px;
  }
  .terminal-top h2 {
    font-size:12px;
  }
  .terminal-tag {
    font-size:8px;
  }
  .terminal-bottom {
    font-size:10px;
  }
  .lab-actionbar {
    flex-direction:column;
    gap:16px;
  }
  .lab-actions {
    width:100%;
    justify-content:flex-start;
  }
  .lab-actions .text-link {
    justify-content:flex-start;
    margin-left:0;
  }
  .compact-map .device-icon {
    width:40px;
    height:40px;
  }
  .compact-map .map-host strong {
    font-size:11px;
  }
  .compact-map .map-host>span {
    font-size:10px;
  }
  .compact-map .map-network-label {
    font-size:9px;
  }
  .help-dialog {
    margin:14px auto;
    min-height:0;
    width:calc(100% - 28px);
    max-height:calc(100dvh - 28px);
    padding:22px;
  }
  .dialog-top h2 {
    font-size:21px;
  }
  .route-overview {
    gap:14px;
    font-size:12px;
  }
}
@media(max-width:480px) {
  .topbar {
    padding-inline:14px;
  }
  .brand {
    gap:8px;
  }
  .app-brand strong {
    font-size:12px;
  }
  .brand-logo {
    width:113px;
  }
  .brand-logo .logo-light {
    width:141px;
    height:141px;
    top:-56px;
    left:-13px;
  }
  .brand-logo .logo-dark {
    width:113px;
    top:8px;
  }
  .header-actions {
    gap:5px;
  }
  .icon-button,.avatar {
    width:44px;
    height:44px;
  }
  .header-actions .icon-button {
    border:0;
  }
  main {
    padding:24px 16px;
  }
  .page-intro {
    margin-bottom:22px;
  }
  h1 {
    font-size:28px;
  }
  .eyebrow {
    font-size:9px;
    letter-spacing:1.3px;
  }
  .hero {
    grid-template-columns:1fr;
  }
  .hero-copy {
    padding:28px;
  }
  .hero-copy h2 {
    font-size:42px;
    letter-spacing:-1.8px;
  }
  .hero-copy>p {
    font-size:14px;
  }
  .hero-actions {
    flex-direction:row;
    align-items:center;
    gap:12px;
  }
  .hero-actions .ecv-btn {
    font-size:12px;
  }
  .hero-kicker {
    font-size:9px;
  }
  .hero-footnote {
    font-size:10px;
  }
  .hero>.network-map {
    padding:24px 18px;
    min-height:270px;
    border-top:1px solid var(--nc-orange-border);
  }
  .map-host strong {
    font-size:10px;
  }
  .map-host>span {
    font-size:9px;
  }
  .map-network-label {
    font-size:9px;
  }
  .map-host .device-icon {
    width:36px;
    height:36px;
  }
  .map-caption {
    margin-top:20px;
    font-size:10px;
  }
  .stats-grid {
    gap:10px;
    margin-top:14px;
  }
  .stat-card {
    gap:9px;
    padding:14px 12px;
  }
  .stat-card strong {
    font-size:24px;
  }
  .stat-card strong small {
    font-size:12px;
  }
  .stat-symbol {
    height:31px;
    width:31px;
  }
  .stat-symbol .ui-icon {
    width:17px;
  }
  .stat-card>div>span {
    font-size:9px;
    line-height:1.5;
    display:block;
    margin-top:3px;
  }
  .progress-stat strong {
    font-size:10px;
  }
  .section-heading {
    flex-wrap:wrap;
    gap:6px;
  }
  .section-heading>.text-link {
    min-height:44px;
  }
  .section-heading h2 {
    font-size:23px;
  }
  .section-heading p {
    font-size:13px;
  }
  .challenge-banner {
    gap:12px;
    padding:20px;
  }
  .challenge-banner .ecv-btn {
    margin-left:0;
    width:100%;
  }
  .challenge-banner>div {
    min-width:170px;
  }
  .challenge-banner h2 {
    font-size:18px;
  }
  .banner-icon {
    width:42px;
    height:42px;
  }
  .challenge-grid {
    grid-template-columns:1fr;
  }
  .filters {
    gap:6px;
    margin-top:20px;
  }
  .filter-button {
    font-size:12px;
    padding:9px 13px;
  }
  .challenge-card {
    padding:22px;
  }
  .lab-heading {
    flex-wrap:wrap;
    gap:15px;
    margin-top:8px;
  }
  .lab-heading h1 {
    font-size:28px;
  }
  .lab-heading>button {
    min-width:110px;
  }
  .terminal-body {
    padding:18px 14px;
    font-size:11px;
  }
  .terminal-tag {
    font-size:7px;
  }
  .terminal-top h2 {
    font-size:11px;
  }
  .terminal-top {
    gap:5px;
  }
  .terminal-bottom {
    gap:5px;
    font-size:9px;
    padding-inline:12px;
  }
  .terminal-bottom>span:last-child {
    display:none;
  }
  .terminal-prompt {
    gap:6px;
  }
  .scenario-heading {
    flex-wrap:wrap;
    gap:6px;
  }
  .compact-map .map-host strong {
    font-size:9px;
  }
  .compact-map .map-host>span {
    font-size:8px;
  }
  .compact-map .network-branches {
    max-width:100%;
  }
  .lab-actions>.ecv-btn {
    flex:1;
    font-size:12px;
    padding-inline:10px;
  }
  .lab-actions .text-link {
    margin-top:3px;
  }
  .site-footer {
    margin-inline:16px;
  }
  .help-dialog,.profile-dialog {
    padding:20px;
  }
  .dialog-top h2 {
    font-size:20px;
  }
  .help-tabs button {
    font-size:11px;
  }
  .hint {
    padding-inline:13px;
  }
  .hint summary {
    font-size:12px;
  }
}
@media(prefers-reduced-motion:reduce) {
  *,*::before,*::after {
    transition:none!important;
    animation:none!important;
    scroll-behavior:auto!important;
  }
}