/* Toolkit cover: RGB #369226; arc #EAEAE5. Blue sampled from the supplied vector logo.
   Dark and pale variants are site interface colors, not modified logo colors. */
:root {
  --knx-green: #369226;
  --knx-green-dark: #143d29;
  --knx-green-light: #eaf2e5;
  --knx-blue: #0b68ae;
  --knx-grey: #90999d;
  --surface: #ffffff;
  --surface-muted: #f1f3ef;
  --surface-warm: #fafbf8;
  --text: #18382a;
  --text-muted: #526457;
  --border: #d6dfd1;
  --accent-soft: #d7ecbb;
  --accent-text: #286e1e;
  --on-dark: #ffffff;
  --on-dark-muted: #d0dece;
  --dark-raised: #204a34;
  --dark-border: #64826b;
  --focus: #a9d568;
  --arc: #eaeae5;
  --grid-line: #ffffff12;
  --ghost-line: #ffffff25;
  --shadow: #143d2914;
  --arc-green: #3692260d;
  --ink: var(--text);
  --muted: var(--text-muted);
  --green: var(--knx-green-dark);
  --lime: var(--accent-soft);
  --paper: var(--surface-warm);
  --line: var(--border);
  --white: var(--surface);
  --radius: 8px;
}
* {
  box-sizing:border-box;
}
html {
  scroll-behavior:smooth;
  scroll-padding-top:100px;
}
body {
  margin:0;
  color:var(--ink);
  background:var(--paper);
  font-family:Arial,Helvetica,sans-serif;
  font-size:16px;
  line-height:1.65;
}
a {
  color:inherit;
  text-decoration:none;
}
button {
  font:inherit;
}
a,button,summary {
  -webkit-tap-highlight-color:transparent;
}
a:focus-visible,button:focus-visible,summary:focus-visible {
  outline:3px solid var(--accent-text);
  outline-offset:5px;
}
p {
  margin:0 0 20px;
}
h1,h2,h3 {
  line-height:1.15;
  letter-spacing:-.035em;
  margin:0 0 22px;
}
h1 {
  font-size:clamp(40px,4.7vw,66px);
  font-weight:700;
}
h2 {
  font-size:clamp(30px,3.1vw,44px);
}
h3 {
  font-size:20px;
  letter-spacing:-.02em;
}
.container {
  width:min(1200px,calc(100% - 64px));
  margin-inline:auto;
}
.skip-link {
  position:fixed;
  top:-100px;
  left:20px;
  padding:12px 20px;
  background:var(--lime);
  z-index:20;
}
.skip-link:focus {
  top:10px;
}
.site-header {
  background:var(--surface-warm);
  border-bottom:1px solid var(--line);
  position:sticky;
  top:0;
  z-index:10;
}
.header-inner {
  min-height:88px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand {
  display:inline-flex;
  align-items:center;
  gap:11px;
  white-space:nowrap;
  line-height:1.2;
  font-size:17px;
}
.brand strong {
  font-weight:400;
}
.brand-mark {
  display:grid;
  place-content:center;
  position:relative;
  width:39px;
  height:39px;
  border-radius:9px;
  background:var(--ink);
  color:var(--lime);
  font-size:31px;
  font-weight:700;
  letter-spacing:-4px;
  padding-right:7px;
}
.brand-mark span {
  position:absolute;
  right:7px;
  top:4px;
  font-size:19px;
  letter-spacing:0;
}
nav {
  display:flex;
  align-items:center;
  gap:25px;
  font-size:13px;
  font-weight:600;
}
nav>a:not(.button):hover {
  color:var(--accent-text);
}
.button {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:28px;
  background:var(--green);
  color:var(--on-dark);
  border:1px solid transparent;
  border-radius:4px;
  padding:14px 23px;
  font-weight:600;
  font-size:14px;
  transition:background .18s,transform .18s;
}
.button:hover {
  background:var(--dark-raised);
  transform:translateY(-2px);
}
.button span {
  font-size:20px;
}
.button-small {
  padding:10px 17px;
  gap:20px;
}
.menu-toggle {
  border:1px solid var(--line);
  background:transparent;
  border-radius:4px;
  padding:7px 12px;
  color:var(--ink);
}
.menu-toggle[hidden] {
  display:none;
}
.hero {
  padding:62px 0 38px;
  background:radial-gradient(ellipse at 80% 25%,var(--knx-green-light),transparent 60%);
}
.hero-grid {
  display:grid;
  grid-template-columns:1.2fr 1fr;
  gap:64px;
  align-items:center;
}
.eyebrow {
  font-size:11px;
  font-weight:700;
  letter-spacing:.14em;
  margin-bottom:22px;
  line-height:1.6;
}
.status-dot {
  display:inline-block;
  width:7px;
  height:7px;
  background:var(--knx-green);
  border-radius:50%;
  margin-right:7px;
}
.hero h1 span {
  color:var(--accent-text);
}
.lead {
  font-size:19px;
  max-width:580px;
  line-height:1.65;
}
.hero-description {
  font-size:15px;
  color:var(--muted);
  max-width:530px;
}
.system-panel {
  background:var(--ink);
  color:var(--on-dark);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:0 18px 45px var(--shadow);
}
.panel-heading,.panel-footer {
  display:flex;
  justify-content:space-between;
  gap:12px;
  padding:20px 24px;
  font-size:9px;
  letter-spacing:.08em;
  border-bottom:1px solid var(--ghost-line);
}
.panel-heading>span:last-child {
  color:var(--lime);
  font-size:18px;
  line-height:1;
}
.panel-footer {
  border-top:1px solid var(--ghost-line);
  border-bottom:0;
  font-size:10px;
  letter-spacing:0;
  color:var(--on-dark-muted);
}
.system-diagram {
  position:relative;
  height:330px;
  background-image:radial-gradient(var(--grid-line) 1px,transparent 1px);
  background-size:19px 19px;
}
.system-diagram:before {
  content:"";
  position:absolute;
  left:50%;
  top:60px;
  width:1px;
  height:220px;
  background:var(--dark-border);
}
.system-diagram:after {
  content:"";
  position:absolute;
  left:24%;
  right:24%;
  height:58px;
  top:206px;
  border:1px solid var(--dark-border);
  border-bottom:0;
}
.diagram-core {
  position:absolute;
  z-index:2;
  top:119px;
  left:50%;
  transform:translateX(-50%);
  width:126px;
  height:98px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  border:1px solid var(--accent-soft);
  border-radius:8px;
  background:var(--accent-soft);
  color:var(--knx-green-dark);
  font-size:38px;
  font-weight:700;
  letter-spacing:-2px;
  box-shadow:0 0 0 9px var(--grid-line);
}
.diagram-core span {
  font-size:8px;
  letter-spacing:.09em;
}
.diagram-node {
  position:absolute;
  z-index:2;
  background:var(--dark-raised);
  border:1px solid var(--dark-border);
  border-radius:5px;
  padding:12px 8px;
  text-align:center;
  font-size:13px;
  width:136px;
  line-height:1.5;
}
.diagram-node span {
  display:block;
  font-size:8px;
  letter-spacing:.08em;
  color:var(--on-dark-muted);
  margin-top:4px;
}
.node-top {
  top:24px;
  left:50%;
  transform:translateX(-50%);
}
.node-left {
  bottom:23px;
  left:9%;
}
.node-right {
  bottom:23px;
  right:9%;
}
.audience-grid {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
  margin-top:44px;
}
.audience-card {
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:5px;
  padding:23px 27px;
  transition:border-color .2s;
}
.audience-card:hover {
  border-color:var(--knx-green);
}
.card-number {
  font-size:10px;
  letter-spacing:.12em;
  color:var(--accent-text);
  font-weight:700;
}
.audience-card strong {
  display:block;
  font-size:20px;
  letter-spacing:-.02em;
  margin:9px 0;
}
.audience-card>span:last-child {
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size:13px;
  color:var(--muted);
}
.audience-card b {
  color:var(--ink);
  font-size:21px;
}
.technology-strip {
  border-block:1px solid var(--line);
  padding:22px 0;
  background:var(--surface-muted);
}
.technology-strip .container {
  display:flex;
  justify-content:space-between;
  gap:22px;
  align-items:center;
  flex-wrap:wrap;
}
.technology-strip span {
  font-size:9px;
  letter-spacing:.09em;
  max-width:125px;
  color:var(--muted);
}
.technology-strip strong {
  font-size:17px;
  font-weight:600;
  color:var(--text-muted);
}
.section {
  padding:88px 0;
}
.split-layout {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:90px;
}
.section-intro {
  font-size:19px;
  line-height:1.65;
}
.split-layout>div>p:not(.eyebrow):not(.section-intro) {
  color:var(--muted);
}
.text-link {
  display:inline-flex;
  gap:25px;
  font-size:14px;
  font-weight:700;
  border-bottom:1px solid var(--border);
  padding-bottom:6px;
  margin-top:10px;
}
.text-link:hover {
  color:var(--accent-text);
}
.needs-list article {
  display:flex;
  gap:20px;
  padding:23px 0;
  border-bottom:1px solid var(--line);
}
.needs-list article:first-child {
  padding-top:0;
}
.needs-list article>span {
  flex-shrink:0;
  display:grid;
  place-content:center;
  background:var(--knx-green-light);
  border-radius:4px;
  width:38px;
  height:38px;
  font-size:23px;
}
.needs-list h3 {
  font-size:18px;
  margin-bottom:8px;
}
.needs-list p {
  font-size:14px;
  color:var(--muted);
  margin:0;
}
.b2b-section {
  background:var(--ink);
  color:var(--paper);
}
.b2b-section .eyebrow {
  color:var(--lime);
}
.b2b-section .split-layout>div>p:not(.eyebrow) {
  color:var(--on-dark-muted);
}
.button-light {
  background:var(--lime);
  color:var(--ink);
  margin-top:12px;
}
.button-light:hover {
  background:var(--knx-green-light);
}
.b2b-deliverables {
  padding:30px 34px;
  border:1px solid var(--ghost-line);
  border-radius:6px;
  background:var(--grid-line);
  align-self:center;
}
.b2b-deliverables ul {
  list-style:none;
  padding:0;
  margin:0 0 23px;
}
.b2b-deliverables li {
  padding:12px 0 12px 24px;
  position:relative;
  border-bottom:1px solid var(--ghost-line);
  font-size:15px;
}
.b2b-deliverables li:before {
  content:'↗';
  position:absolute;
  left:0;
  color:var(--lime);
}
.small {
  font-size:12px;
  margin-bottom:0;
}
.section-heading {
  display:flex;
  justify-content:space-between;
  gap:40px;
  align-items:end;
  margin-bottom:35px;
}
.section-heading h2 {
  max-width:550px;
  margin-bottom:0;
}
.section-heading>p {
  max-width:330px;
  font-size:14px;
  color:var(--muted);
  margin:0;
}
.services-grid {
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border-left:1px solid var(--line);
  border-top:1px solid var(--line);
}
.service-card {
  padding:27px 23px;
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.service-card h3 {
  font-size:18px;
  line-height:1.35;
  margin:24px 0 12px;
}
.service-card p {
  font-size:14px;
  color:var(--muted);
  margin:0;
}
.process-section {
  background:var(--surface-muted);
}
.steps {
  list-style:none;
  padding:0;
  margin:40px 0 0;
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:22px;
}
.step-number {
  width:38px;
  height:38px;
  display:grid;
  place-content:center;
  border:1px solid var(--dark-border);
  border-radius:50%;
  font-size:12px;
  margin-bottom:24px;
}
.steps h3 {
  font-size:16px;
  margin-bottom:12px;
}
.steps p {
  font-size:13px;
  color:var(--muted);
  margin:0;
}
.experience-grid {
  display:grid;
  grid-template-columns:.8fr 1.2fr;
  gap:100px;
  align-items:center;
}
.experience-number {
  padding:35px;
  border-left:3px solid var(--knx-green);
}
.experience-number>strong {
  font-size:clamp(90px,11vw,150px);
  line-height:1;
  font-weight:500;
  letter-spacing:-.09em;
}
.experience-number strong span {
  color:var(--accent-text);
  font-size:.6em;
  vertical-align:top;
  letter-spacing:0;
}
.experience-number p {
  font-size:17px;
  color:var(--muted);
  margin:20px 0 0;
}
.experience-grid>div>p:not(.eyebrow) {
  color:var(--muted);
}
.faq-section {
  border-top:1px solid var(--line);
  background:var(--surface-muted);
}
.faq-list details {
  border-bottom:1px solid var(--border);
}
.faq-list summary {
  cursor:pointer;
  padding:19px 30px 19px 0;
  font-size:16px;
  font-weight:600;
  list-style:none;
  position:relative;
  line-height:1.5;
}
.faq-list summary::-webkit-details-marker {
  display:none;
}
.faq-list summary:after {
  content:'+';
  position:absolute;
  right:3px;
  font-size:23px;
  top:14px;
  font-weight:400;
}
.faq-list details[open] summary:after {
  content:'−';
}
.faq-list details p {
  font-size:14px;
  color:var(--muted);
  padding-right:25px;
}
.contact-section {
  background:var(--knx-green-light);
}
.contact-details {
  display:grid;
  gap:15px;
  margin-top:30px;
}
.contact-details div {
  display:flex;
  flex-direction:column;
  gap:4px;
}
.contact-details span {
  font-size:10px;
  letter-spacing:.13em;
  color:var(--text-muted);
}
.contact-details strong {
  font-size:21px;
  overflow-wrap:anywhere;
}
.placeholder-note {
  font-size:12px;
  margin-top:22px;
  max-width:400px;
}
.request-guide {
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:6px;
  padding:35px;
  align-self:center;
}
.request-guide h3 {
  font-size:24px;
  max-width:300px;
}
.request-guide ul {
  padding-left:20px;
  font-size:14px;
  margin:25px 0;
}
.request-guide li {
  padding:5px 0;
}
.request-guide>p:last-child {
  border-top:1px solid var(--line);
  padding-top:20px;
  margin:0;
  font-size:12px;
  color:var(--muted);
}
.site-footer {
  padding:33px 0 25px;
}
.footer-top,.footer-bottom {
  display:flex;
  justify-content:space-between;
  gap:30px;
  align-items:center;
}
.footer-top>p,.footer-top>a:last-child {
  font-size:12px;
  margin:0;
}
.footer-bottom {
  border-top:1px solid var(--line);
  padding-top:22px;
  margin-top:27px;
  align-items:start;
  font-size:11px;
  color:var(--muted);
}
.footer-bottom p {
  margin:0;
}
.footer-bottom p:last-child {
  max-width:400px;
}

@media(min-width:1001px) {
  .menu-toggle {
  display:none;
}
}

@media(max-width:1100px) {
  nav {
  gap:15px;
}
.hero-grid {
  gap:30px;
}
.split-layout {
  gap:50px;
}
.node-left {
  left:5%;
}
.node-right {
  right:5%;
}
.services-grid {
  grid-template-columns:repeat(2,1fr);
}
.steps {
  grid-template-columns:repeat(3,1fr);
  row-gap:30px;
}
}

@media(max-width:1000px) {
  .header-inner {
  flex-wrap:wrap;
  padding-block:18px;
  gap:14px;
}
.menu-toggle:not([hidden]) {
  display:block;
  margin-left:auto;
}
nav {
  width:100%;
  flex-wrap:wrap;
  padding-top:8px;
  gap:15px 24px;
}
nav[data-collapsed="true"] {
  display:none;
}
.hero-grid {
  grid-template-columns:1.1fr 1fr;
}
.hero h1 {
  font-size:43px;
}
.system-diagram {
  height:320px;
}
.diagram-node {
  width:112px;
  font-size:12px;
}
.panel-heading {
  font-size:8px;
  padding:17px;
}
.panel-footer {
  padding:17px;
  font-size:9px;
}
.audience-card strong {
  font-size:18px;
}
}

@media(max-width:760px) {
  html {
  scroll-padding-top:95px;
}
.container {
  width:calc(100% - 36px);
}
.hero {
  padding-top:36px;
}
.hero-grid,.split-layout,.experience-grid {
  grid-template-columns:1fr;
  gap:35px;
}
.hero h1 {
  font-size:clamp(37px,8.5vw,55px);
}
.hero-copy .eyebrow {
  font-size:9px;
}
.hero-description {
  font-size:14px;
}
.system-panel {
  max-width:500px;
  width:100%;
  margin:auto;
}
.system-diagram {
  height:295px;
}
.diagram-core {
  top:105px;
}
.node-top {
  top:15px;
}
.node-left {
  left:12%;
}
.node-right {
  right:12%;
}
.system-diagram:after {
  top:187px;
}
.audience-grid {
  grid-template-columns:1fr;
  margin-top:28px;
  gap:12px;
}
.audience-card {
  padding:20px;
}
.technology-strip .container {
  justify-content:center;
  gap:14px 24px;
}
.technology-strip span {
  max-width:none;
  width:100%;
  text-align:center;
}
.technology-strip strong {
  font-size:14px;
}
.section {
  padding:55px 0;
}
.section-heading {
  display:block;
}
.section-heading>p {
  max-width:none;
  margin-top:20px;
}
.section-intro {
  font-size:17px;
}
.b2b-deliverables {
  padding:25px;
}
.experience-grid {
  gap:32px;
}
.experience-number {
  padding:10px 25px;
  display:flex;
  align-items:center;
  gap:30px;
}
.experience-number>strong {
  font-size:100px;
}
.experience-number p {
  font-size:14px;
  margin:0;
}
.request-guide {
  padding:25px;
}
.footer-top,.footer-bottom {
  flex-wrap:wrap;
  gap:20px;
}
.footer-top>p {
  display:none;
}
.footer-bottom p:last-child {
  max-width:none;
}
nav .button {
  width:100%;
}
nav>a:not(.button) {
  width:calc(50% - 12px);
  padding:5px 0;
}
}

@media(max-width:420px) {
  .brand {
  font-size:15px;
}
.services-grid {
  grid-template-columns:1fr;
}
.steps {
  grid-template-columns:repeat(2,1fr);
}
.node-left {
  left:5%;
}
.node-right {
  right:5%;
}
.service-card h3 {
  margin-top:15px;
}
.audience-card strong {
  font-size:17px;
}
.experience-number {
  gap:20px;
}
.footer-top>a:last-child {
  font-size:11px;
}
}

@media(prefers-reduced-motion:reduce) {
  html {
  scroll-behavior:auto;
}
*,*:before,*:after {
  transition:none!important;
  animation:none!important;
}
}


/* KNX Toolkit visual language: generous white space, arcs and hexagonal accents. */
.site-header {
  background: linear-gradient(110deg, var(--knx-green-dark), var(--dark-raised));
  color: var(--on-dark);
  border-bottom: 1px solid var(--dark-border);
  box-shadow: 0 4px 20px var(--shadow);
}
.header-inner { min-height: 90px; }
.brand-name { font-size: 22px; font-weight: 700; letter-spacing: -.035em; }
.brand-name small { display: block; font-size: 10px; line-height: 1.8; font-weight: 400; letter-spacing: .015em; }
.site-header .brand-mark { background: var(--knx-green); color: var(--on-dark); }
.site-header .button { background: var(--accent-soft); color: var(--knx-green-dark); }
.site-header .button:hover { background: var(--surface); }
.site-header nav > a:not(.button):hover { color: var(--accent-soft); }
.site-header .menu-toggle { color: var(--on-dark); border-color: var(--dark-border); }
.site-header :focus-visible, .knx-section :focus-visible, .b2b-section :focus-visible {
  outline-color: var(--focus);
}
.hero { position: relative; isolation: isolate; overflow: hidden; background: var(--surface-warm); padding-top: 56px; }
.hero::before { content: ''; position: absolute; z-index: -1; width: 750px; height: 750px; border: 90px solid var(--arc-green); border-radius: 50%; top: -350px; right: -270px; pointer-events: none; }
.hero-grid { gap: 50px; }
h1 { font-weight: 500; font-size: clamp(40px, 4.4vw, 62px); letter-spacing: -.045em; }
h2 { font-weight: 500; }
.hero h1 span { color: var(--accent-text); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-actions .button { gap: 15px; padding: 13px 18px; }
.button-secondary { background: transparent; color: var(--text); border-color: var(--border); }
.button-secondary:hover { background: var(--knx-green-light); }
.hero-credentials { display: flex; align-items: center; gap: 17px; margin-top: 25px; }
.knx-logo-space { padding: 18px; display: inline-flex; flex-shrink: 0; }
.knx-logo-space img { display: block; max-width: 100%; height: auto; object-fit: contain; }
.hero-credentials .knx-logo-space { padding: 12px 16px; background: var(--surface); border: 1px solid var(--border); border-radius: 4px; }
.hero-credentials img { width: 90px; }
.hero-credentials p { font-size: 12px; line-height: 1.6; margin: 0; font-weight: 600; }
.hero-credentials p span { color: var(--text-muted); font-size: 11px; font-weight: 400; }
.system-panel { background: var(--knx-green-dark); border: 1px solid var(--dark-border); box-shadow: 0 20px 50px var(--shadow); }
.system-diagram { height: 350px; }
.diagram-core { background: var(--knx-green); color: var(--on-dark); border-color: var(--accent-soft); }
.diagram-core span { font-size: 9px; }
.node-top { top: 24px; }
.node-left, .node-right { bottom: 35px; }
.panel-heading, .panel-footer { font-size: 11px; }
.panel-heading { letter-spacing: .04em; }
.audience-card { border-top: 3px solid var(--knx-green); }
.audience-card:hover { background: var(--knx-green-light); }
.eyebrow { font-size: 12px; letter-spacing: .1em; }
.card-number { font-size: 12px; }
.services-grid { gap: 18px; border: 0; }
.service-card { background: var(--surface-muted); border: 1px solid var(--border); border-radius: 7px; padding: 25px 22px; transition: transform .2s, box-shadow .2s, border-color .2s; }
.service-card:hover { transform: translateY(-3px); box-shadow: 0 9px 22px var(--shadow); border-color: var(--knx-green); }
.service-card-top { display: flex; align-items: center; justify-content: space-between; }
.service-icon, .benefit-symbol { display: grid; place-items: center; width: 56px; height: 62px; background: var(--knx-green); color: var(--on-dark); clip-path: polygon(50% 0, 96% 25%, 96% 75%, 50% 100%, 4% 75%, 4% 25%); flex-shrink: 0; }
.service-icon svg { width: 30px; height: 30px; }
.service-card h3 { margin-top: 23px; }
.service-card p { font-size: 15px; }
.knx-section { background: var(--knx-green-dark); color: var(--on-dark); position: relative; isolation: isolate; overflow: hidden; }
.knx-section::before { content: ''; position: absolute; z-index: -1; width: 650px; height: 650px; border: 65px solid var(--ghost-line); border-radius: 50%; right: -320px; top: -380px; pointer-events: none; }
.knx-heading { display: grid; grid-template-columns: 1.5fr 1fr; gap: 70px; align-items: center; }
.knx-heading .section-intro { max-width: 650px; color: var(--on-dark-muted); }
.knx-heading .eyebrow { color: var(--accent-soft); }
.knx-identity { justify-self: center; text-align: center; }
.knx-identity .knx-logo-space { padding: 28px; }
.knx-identity p { font-size: 14px; color: var(--on-dark-muted); }
.knx-benefits { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 25px; }
.knx-benefits article { background: var(--dark-raised); border: 1px solid var(--dark-border); padding: 27px; border-radius: 6px; }
.benefit-symbol { width: 44px; height: 49px; font-size: 13px; margin-bottom: 22px; }
.knx-benefits h3 { font-size: 21px; }
.knx-benefits p { font-size: 15px; color: var(--on-dark-muted); margin: 0; }
.knx-professional { display: flex; gap: 45px; justify-content: space-between; align-items: center; border-top: 1px solid var(--dark-border); padding-top: 30px; margin-top: 35px; }
.knx-professional p { max-width: 830px; margin: 0; font-size: 14px; color: var(--on-dark-muted); }
.knx-professional strong { color: var(--on-dark); }
.knx-professional a { flex-shrink: 0; color: var(--on-dark); border-color: var(--accent-soft); }
.knx-professional a:hover { color: var(--accent-soft); }
.step-number { border-color: var(--knx-green); color: var(--accent-text); background: var(--surface); }
.technology-strip strong:first-of-type { color: var(--accent-text); }
.technology-strip strong:nth-of-type(2) { color: var(--knx-blue); }
.footer-top { align-items: center; }
.footer-top > p { max-width: 290px; color: var(--text-muted); }
@media (max-width: 1100px) {
  .header-inner { gap: 15px; }
  .brand-name { font-size: 20px; }
  .brand-name small { font-size: 9px; }
  nav { gap: 13px; }
  .hero-grid { gap: 30px; }
  .panel-heading, .panel-footer { font-size: 10px; }
}
@media (max-width: 1000px) {
  nav { padding-top: 14px; border-top: 1px solid var(--dark-border); }
  .knx-benefits { gap: 14px; }
  .knx-benefits article { padding: 21px; }
  .system-diagram { height: 330px; }
}
@media (max-width: 760px) {
  .header-inner { min-height: 78px; padding-block: 14px; }
  .brand-name { font-size: 20px; }
  .brand-name small { font-size: 9px; }
  .hero { padding-top: 35px; }
  .hero-grid { gap: 32px; }
  .hero::before { width: 500px; height: 500px; border-width: 65px; top: -210px; right: -330px; }
  .hero-copy .eyebrow { font-size: 10px; }
  .hero-actions .button { font-size: 13px; }
  .hero-credentials { gap: 12px; }
  .hero-credentials p { font-size: 11px; }
  .hero-credentials p span { font-size: 10px; }
  .hero-credentials .knx-logo-space { padding: 12px; }
  .system-diagram { height: 295px; }
  .node-left, .node-right { bottom: 23px; }
  .node-top { top: 15px; }
  .knx-heading { grid-template-columns: 1fr; gap: 15px; }
  .knx-identity { justify-self: start; display: flex; align-items: center; text-align: left; gap: 10px; }
  .knx-identity .knx-logo-space { padding: 20px; }
  .knx-identity p { margin: 0; font-size: 12px; }
  .knx-benefits { grid-template-columns: 1fr; gap: 16px; }
  .knx-benefits article { padding: 25px; }
  .knx-professional { flex-direction: column; align-items: start; gap: 15px; }
  .section-intro { max-width: 65ch; }
  .footer-top > p { display: block; order: 3; max-width: none; width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  .service-card:hover, .button:hover { transform: none; }
}
/* Small labels need a darker background than the official display green. */
.diagram-core span { background: var(--knx-green-dark); padding: 2px 5px; border-radius: 2px; }
.benefit-symbol { background: var(--accent-text); }
@media (max-width: 420px) {
  .site-header .brand-name small { max-width: 145px; white-space: normal; line-height: 1.35; }
}
@media (min-width: 761px) and (max-width: 900px) {
  .hero h1 { font-size: 38px; }
  .hero .lead { font-size: 17px; }
  .hero-description { font-size: 14px; }
}