:root {
  --black: #0b0e0c;
  --ink: #151a16;
  --amber: #f3a712;
  --red: #d33a2c;
  --green: #74c982;
  --blue: #6b9fd1;
  --beige: #ddd2b8;
  --paper: #eee7d5;
  --muted: #979b8f;
  --line: #343b34;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --sans: "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--black);
  color: var(--beige);
  font-family: var(--sans);
  line-height: 1.5;
  overflow-x: hidden;
}
body::before {
  position: fixed;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  content: "";
  opacity: 0.045;
  background-size: 4px 4px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='4' height='4'%3E%3Cpath d='M0 1h4' stroke='%23DDD2B8' stroke-width='.35'/%3E%3C/svg%3E");
}
a { color: inherit; }
button, input { font: inherit; }
button { color: inherit; }
.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: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  color: var(--black);
  background: var(--amber);
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid var(--amber); outline-offset: 3px; }

.site-header {
  position: relative;
  z-index: 10;
  min-height: 92px;
  display: grid;
  grid-template-columns: minmax(250px, 1fr) auto minmax(250px, 1fr);
  align-items: stretch;
  border-bottom: 1px solid var(--line);
  background: var(--black);
}
.brand {
  display: flex;
  align-items: center;
  gap: 13px;
  width: fit-content;
  padding: 13px 30px;
  text-decoration: none;
}
.brand-mark {
  width: 52px;
  height: 52px;
  flex: 0 0 auto;
  fill: none;
  stroke: var(--amber);
  stroke-width: 3.4;
  stroke-linecap: square;
  stroke-linejoin: miter;
}
.brand-mark .helix { stroke: var(--green); stroke-width: 1.7; }
.brand-copy { display: grid; line-height: 1; }
.brand-copy b {
  color: var(--paper);
  font-size: 26px;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.brand-copy small {
  margin-top: 6px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.site-header nav { display: flex; align-items: stretch; }
.site-header nav a {
  display: grid;
  place-items: center;
  min-width: 92px;
  padding: 0 15px;
  color: var(--muted);
  border-left: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-decoration: none;
  text-transform: uppercase;
}
.site-header nav a:last-child { border-right: 1px solid var(--line); }
.site-header nav a:hover { color: var(--amber); background: #111511; }
.employee-login {
  align-self: center;
  justify-self: end;
  margin-right: 30px;
  padding: 10px 13px;
  color: var(--paper);
  border: 1px solid var(--amber);
  background: #141714;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.09em;
  text-decoration: none;
  text-transform: uppercase;
  transition: color 120ms ease, background 120ms ease;
}
.employee-login:hover,
.employee-login:focus-visible { color: #0b0e0c; background: var(--amber); outline: none; }
.employee-login span {
  display: block;
  margin-top: 2px;
  color: var(--green);
  font-size: 8px;
}
.employee-login:hover span,
.employee-login:focus-visible span { color: #0b0e0c; }

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(390px, 0.75fr);
  min-height: 690px;
  border-bottom: 1px solid var(--line);
}
.hero::after {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 38%;
  height: 8px;
  content: "";
  background: var(--amber);
}
.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 92px clamp(30px, 6vw, 104px);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cg fill='none' stroke='%23343B34' stroke-width='1'%3E%3Cpath d='M0 0h120v120H0zM0 60h120M60 0v120'/%3E%3C/g%3E%3C/svg%3E");
}
.kicker {
  margin: 0 0 20px;
  color: var(--amber);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.lamp {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 8px;
  border: 1px solid currentColor;
  border-radius: 50%;
  vertical-align: 0;
}
.lamp-amber { color: var(--amber); background: var(--amber); }
.lamp-green { color: var(--green); background: var(--green); }
.hero h1,
.section-heading h2,
.boundary-copy h2 {
  margin: 0;
  color: var(--paper);
  font-size: clamp(48px, 6.25vw, 98px);
  font-stretch: condensed;
  font-weight: 900;
  letter-spacing: -0.055em;
  line-height: 0.88;
  text-transform: uppercase;
}
.hero h1 em { color: var(--amber); font-style: normal; }
.hero-lede {
  max-width: 740px;
  margin: 34px 0 0;
  padding-left: 20px;
  color: #c0baa8;
  border-left: 3px solid var(--red);
  font-size: clamp(16px, 1.35vw, 20px);
  line-height: 1.65;
}
.hero-actions { display: flex; gap: 12px; margin-top: 38px; flex-wrap: wrap; }
.action {
  display: inline-block;
  padding: 13px 17px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-decoration: none;
  text-transform: uppercase;
}
.action-primary { color: var(--black); background: var(--amber); border: 1px solid var(--amber); }
.action-secondary { color: var(--beige); border: 1px solid #62665d; }
.action:hover { color: var(--black); background: var(--green); border-color: var(--green); }

.program-card {
  display: flex;
  flex-direction: column;
  margin: 38px 38px 38px 0;
  color: var(--black);
  background: var(--beige);
  border: 10px solid #938b77;
  box-shadow: inset 0 0 0 2px var(--black);
}
.card-topline {
  display: flex;
  justify-content: space-between;
  padding: 11px 14px;
  color: var(--beige);
  background: var(--black);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.1em;
}
.card-topline b { color: var(--amber); }
.program-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid #8c856f;
}
.program-grid p { margin: 0; padding: 14px; border-right: 1px solid #aaa188; border-bottom: 1px solid #aaa188; }
.program-grid p:nth-child(even) { border-right: 0; }
.program-grid span,
.program-grid strong { display: block; }
.program-grid span { color: #545348; font-family: var(--mono); font-size: 8px; text-transform: uppercase; }
.program-grid strong { margin-top: 4px; font-size: 13px; text-transform: uppercase; }
.specimen-window { position: relative; margin: auto 14px 12px; padding: 10px; background: #121812; border: 6px solid #686657; }
.specimen-window svg { display: block; width: 100%; height: auto; }
.specimen-window .island-fill { fill: #263b2d; stroke: var(--green); stroke-width: 2; }
.specimen-window .contour { fill: none; stroke: #52765a; stroke-width: 1; }
.specimen-window .road { fill: none; stroke: var(--amber); stroke-width: 2; stroke-dasharray: 5 4; }
.specimen-window circle { fill: var(--red); }
.scan-label { display: block; padding: 5px 2px 0; color: var(--green); font-family: var(--mono); font-size: 8px; letter-spacing: 0.12em; }
.card-note { margin: 0; padding: 10px 14px; color: #514f45; border-top: 1px solid #98917b; font-family: var(--mono); font-size: 8px; line-height: 1.5; text-transform: uppercase; }

.topology-section,
.estate-section,
.boundary-section,
.footprint-section { padding: clamp(76px, 8vw, 128px) clamp(24px, 6vw, 104px); }
.section-heading { max-width: 1180px; margin: 0 auto 54px; }
.section-heading h2,
.boundary-copy h2 { font-size: clamp(42px, 5vw, 76px); }
.section-heading > p:last-child { max-width: 680px; margin: 25px 0 0; color: #aaa897; font-size: 17px; }

.topology-section { background: #0f130f; border-bottom: 1px solid var(--line); }
.topology-console { max-width: 1180px; margin: 0 auto; border: 1px solid #596058; background: #151a16; box-shadow: 12px 12px 0 #060806; }
.overlay-controls { display: grid; grid-template-columns: repeat(4, 1fr); border-bottom: 1px solid #596058; }
.overlay-controls button {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 58px;
  padding: 10px 16px;
  border: 0;
  border-right: 1px solid #596058;
  background: var(--beige);
  color: #4a4b42;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-align: left;
  text-transform: uppercase;
  cursor: pointer;
}
.overlay-controls button:last-child { border-right: 0; }
.overlay-controls button span { color: #7e7d6f; font-weight: 400; }
.overlay-controls button[aria-pressed="true"] { color: var(--black); background: var(--amber); box-shadow: inset 0 -6px 0 var(--red); }
.overlay-controls button:hover { background: var(--green); color: var(--black); }
.topology-screen { margin: 20px; border: 7px solid #4d554c; background: #08100b; box-shadow: inset 0 0 0 2px #1f3025; }
.screen-header { display: flex; justify-content: space-between; padding: 9px 12px; color: var(--green); border-bottom: 1px solid #304a36; font-family: var(--mono); font-size: 9px; letter-spacing: 0.1em; }
.topology-map { display: block; width: 100%; min-height: 360px; max-height: 590px; background: #0b140e; }
.map-base .island { fill: #132319; stroke: #54725a; stroke-width: 3; }
.map-base .sector { fill: none; stroke: #293f2e; stroke-width: 2; }
.map-base .node-base { fill: #16271c; stroke: #64836c; stroke-width: 2; }
.map-base .link-base { stroke: #445449; stroke-width: 3; stroke-dasharray: 10 8; }
.map-base .site-box { fill: #111a14; stroke: #526354; stroke-width: 3; }
.map-base .site-line { stroke: #36463a; stroke-width: 5; }
.map-label { fill: var(--green); font: 12px var(--mono); letter-spacing: 1px; }
.map-label.minor { fill: #718476; font-size: 10px; }
.map-label.site-title { fill: var(--beige); }
.overlay-layer { opacity: 0; pointer-events: none; transition: opacity 160ms linear; }
.overlay-layer.is-active { opacity: 1; }
.overlay-layer path,
.overlay-layer rect,
.overlay-layer circle { fill: none; stroke: var(--amber); stroke-width: 5; vector-effect: non-scaling-stroke; }
.overlay-layer circle { fill: #0b140e; }
.overlay-layer text { fill: var(--amber); font: 700 11px var(--mono); letter-spacing: 1px; }
.overlay-layer[data-layer="mobility"] path,
.overlay-layer[data-layer="mobility"] circle,
.overlay-layer[data-layer="mobility"] text { stroke: var(--blue); color: var(--blue); fill: var(--blue); }
.overlay-layer[data-layer="mobility"] circle { fill: #0b140e; }
.overlay-layer[data-layer="facilities"] path,
.overlay-layer[data-layer="facilities"] rect { stroke: var(--green); }
.overlay-layer[data-layer="facilities"] text { fill: var(--green); }
.overlay-layer[data-layer="enterprise"] path,
.overlay-layer[data-layer="enterprise"] circle { stroke: var(--red); }
.overlay-layer[data-layer="enterprise"] circle { fill: #0b140e; }
.overlay-layer[data-layer="enterprise"] text { fill: var(--red); }
.screen-readout { display: grid; grid-template-columns: 0.7fr 2fr 1fr; border-top: 1px solid #304a36; }
.screen-readout p { margin: 0; padding: 12px; border-right: 1px solid #304a36; }
.screen-readout p:last-child { border-right: 0; }
.screen-readout span,
.screen-readout strong { display: block; font-family: var(--mono); }
.screen-readout span { color: #617165; font-size: 8px; letter-spacing: 0.1em; text-transform: uppercase; }
.screen-readout strong { margin-top: 4px; color: var(--green); font-size: 10px; font-weight: 400; line-height: 1.45; }

.estate-section { color: var(--black); background: var(--beige); }
.estate-section .kicker { color: #745007; }
.estate-section .section-heading h2 { color: var(--black); }
.estate-section .section-heading > p:last-child { color: #4e5048; }
.split-heading { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr); align-items: end; gap: 60px; }
.estate-rack { max-width: 1180px; margin: 0 auto; border: 8px solid #7e796a; background: #3a3c36; }
.rack-unit {
  position: relative;
  display: grid;
  grid-template-columns: 150px minmax(220px, 0.8fr) minmax(250px, 1.3fr) minmax(180px, 0.7fr);
  align-items: center;
  min-height: 142px;
  padding: 18px 24px;
  color: var(--beige);
  border-bottom: 7px solid #747064;
  background: #151815;
}
.rack-unit:last-child { border-bottom: 0; }
.rack-unit::before,
.rack-unit::after { position: absolute; top: 12px; width: 8px; height: 8px; content: ""; border: 2px solid #65675e; border-radius: 50%; }
.rack-unit::before { left: 10px; }
.rack-unit::after { right: 10px; }
.unit-code { color: var(--muted); font-family: var(--mono); font-size: 9px; letter-spacing: 0.1em; }
.rack-unit h3 { margin: 0; font-size: 22px; letter-spacing: -0.02em; text-transform: uppercase; }
.rack-unit p { margin: 0; padding: 0 24px; color: #aaa99d; font-size: 13px; line-height: 1.55; }
.light-grid { display: grid; grid-template-columns: repeat(6, 8px); gap: 9px; justify-content: center; }
.light-grid i { width: 7px; height: 7px; background: var(--red); border: 1px solid #f96c58; }
.light-grid i:nth-child(3n) { background: var(--amber); border-color: #ffe082; }
.terminal-lines { padding: 12px; border: 2px solid #405447; background: #08100b; }
.terminal-lines span { display: block; width: 86%; height: 4px; margin: 8px 0; background: var(--blue); }
.terminal-lines span:nth-child(2) { width: 55%; }
.terminal-lines span:nth-child(3) { width: 72%; }
.mac-face { position: relative; width: 100px; height: 80px; margin: 0 auto; border: 7px solid #a69e86; background: #c9c0a9; }
.mac-face span { display: block; width: 65px; height: 43px; margin: 6px auto; background: #172018; border: 3px solid #5f5e53; }
.mac-face i { position: absolute; right: 7px; bottom: 4px; width: 6px; height: 6px; border-radius: 50%; background: var(--green); }
.signal-bars { display: flex; align-items: end; justify-content: center; gap: 7px; height: 58px; }
.signal-bars i { width: 12px; background: var(--green); }
.signal-bars i:nth-child(1) { height: 18px; }.signal-bars i:nth-child(2) { height: 29px; }.signal-bars i:nth-child(3) { height: 44px; }.signal-bars i:nth-child(4) { height: 35px; }.signal-bars i:nth-child(5) { height: 51px; background: var(--amber); }

.boundary-section { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 8vw, 120px); border-bottom: 1px solid var(--line); }
.boundary-copy > p:not(.kicker) { max-width: 640px; margin: 28px 0; color: #aaa99d; font-size: 17px; line-height: 1.65; }
.boundary-rule { max-width: 620px; padding: 18px; border-left: 5px solid var(--red); background: #151a16; }
.boundary-rule span,
.boundary-rule strong { display: block; }
.boundary-rule span { color: var(--red); font: 9px var(--mono); letter-spacing: 0.12em; text-transform: uppercase; }
.boundary-rule strong { margin-top: 7px; color: var(--paper); font-size: 14px; }
.path-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid #434a43; }
.path-list li { display: grid; grid-template-columns: 74px 1fr; min-height: 122px; padding: 22px 0; border-bottom: 1px solid #434a43; }
.path-list li > span { color: var(--amber); font: 26px var(--mono); }
.path-list b { color: var(--paper); font-size: 17px; text-transform: uppercase; }
.path-list p { margin: 7px 0 0; color: #9c9e93; font-size: 14px; }

.footprint-section { color: var(--black); background: var(--paper); }
.footprint-section .kicker { color: #845b09; }
.footprint-section .section-heading h2 { color: var(--black); }
.footprint-section .section-heading > p:last-child { color: #52544b; }
.footprint-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; max-width: 1180px; margin: 0 auto; }
.site-card { border: 2px solid #6f7065; background: var(--beige); }
.site-card header { display: grid; grid-template-columns: auto 1fr auto; align-items: center; padding: 14px 16px; color: var(--beige); background: var(--black); }
.site-card header b { font-size: 18px; letter-spacing: 0.06em; }
.site-card header small { color: var(--muted); font: 8px var(--mono); letter-spacing: 0.1em; }
.site-card > p { min-height: 110px; margin: 0; padding: 22px; color: #43463e; font-size: 15px; line-height: 1.6; }
.site-card dl { display: grid; grid-template-columns: 1fr 1fr; margin: 0; border-top: 1px solid #8c8a7a; }
.site-card dl div { padding: 14px 20px; border-right: 1px solid #8c8a7a; }
.site-card dl div:last-child { border-right: 0; }
.site-card dt { color: #6d6e62; font: 8px var(--mono); letter-spacing: 0.1em; text-transform: uppercase; }
.site-card dd { margin: 5px 0 0; font-size: 12px; font-weight: 700; text-transform: uppercase; }
.persona-strip { display: flex; align-items: stretch; max-width: 1180px; margin: 18px auto 0; border: 2px solid #6f7065; }
.persona-strip > * { display: flex; align-items: center; min-height: 58px; padding: 10px 17px; border-right: 1px solid #8c8a7a; }
.persona-strip > *:last-child { border-right: 0; }
.persona-strip span { color: var(--paper); background: var(--red); font: 9px var(--mono); letter-spacing: 0.1em; text-transform: uppercase; }
.persona-strip b { flex: 1; font-size: 11px; text-transform: uppercase; }
.persona-strip small { display: block; margin-left: 5px; color: #77786c; font: 7px var(--mono); }

footer { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 28px clamp(24px, 6vw, 104px); color: var(--muted); background: #080a08; border-top: 1px solid var(--line); }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand .brand-mark { width: 40px; height: 40px; }
.footer-brand div { display: grid; }
.footer-brand b { color: var(--beige); font-size: 13px; text-transform: uppercase; }
.footer-brand span,
footer p { font: 8px/1.5 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; }
footer p { max-width: 440px; margin: 0; text-align: right; }

#chatLaunch {
  position: fixed;
  z-index: 40;
  right: 24px;
  bottom: 24px;
  min-width: 154px;
  padding: 14px 18px;
  color: var(--green);
  border: 2px solid var(--green);
  background: var(--black);
  box-shadow: 6px 6px 0 #000;
  font: 700 11px var(--mono);
  letter-spacing: 0.08em;
  cursor: pointer;
}
#chatLaunch:hover { color: var(--black); background: var(--green); }
#chatPanel {
  position: fixed;
  z-index: 50;
  right: 24px;
  bottom: 24px;
  display: flex;
  flex-direction: column;
  width: min(430px, calc(100vw - 32px));
  height: min(620px, calc(100vh - 48px));
  color: var(--beige);
  border: 7px solid #596057;
  background: #0c110d;
  box-shadow: 10px 10px 0 #000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(18px);
  transition: opacity 130ms linear, transform 130ms linear, visibility 130ms linear;
}
#chatPanel.open { opacity: 1; visibility: visible; transform: translateY(0); }
#chatPanel > header { display: flex; align-items: center; justify-content: space-between; min-height: 52px; padding: 0 14px; color: var(--green); border-bottom: 1px solid #344b39; background: #111812; font: 700 12px var(--mono); letter-spacing: 0.09em; }
#chatClose { width: 34px; height: 34px; color: var(--beige); border: 1px solid #4b554c; background: var(--black); font-size: 24px; line-height: 1; cursor: pointer; }
#chatClose:hover { color: var(--black); background: var(--amber); }
.chat-status { display: flex; justify-content: space-between; padding: 6px 12px; color: #68766b; border-bottom: 1px solid #2f3b32; font: 8px var(--mono); letter-spacing: 0.08em; }
#chatLog { flex: 1; min-height: 0; padding: 18px; overflow-y: auto; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24'%3E%3Cpath d='M24 0H0v24' fill='none' stroke='%23202b22' stroke-width='1'/%3E%3C/svg%3E"); }
.msg { max-width: 88%; margin: 0 0 12px; padding: 11px 13px; font: 12px/1.55 var(--mono); }
.msg.bot { color: var(--green); border-left: 3px solid var(--green); background: #111a13; }
.msg.user { margin-left: auto; color: var(--black); background: var(--beige); }
.msg.system { color: #ffd2cc; border: 1px solid var(--red); background: #24110f; }
.msg.typing { color: #758478; }
#chatForm { display: grid; grid-template-columns: 1fr auto; gap: 8px; padding: 12px; border-top: 1px solid #344b39; }
#chatInput { min-width: 0; padding: 11px; color: var(--green); border: 1px solid #465248; border-radius: 0; background: #080c09; font: 11px var(--mono); }
#chatInput::placeholder { color: #59625b; }
#chatSend { padding: 0 14px; color: var(--black); border: 1px solid var(--amber); border-radius: 0; background: var(--amber); font: 700 9px var(--mono); letter-spacing: 0.08em; text-transform: uppercase; cursor: pointer; }
#chatSend:disabled { color: #777; border-color: #444; background: #222; cursor: wait; }

@media (max-width: 1050px) {
  .site-header { grid-template-columns: 1fr auto; }
  .site-header nav { display: none; }
  .hero { grid-template-columns: 1fr; }
  .program-card { margin: 0 30px 50px; }
  .hero-copy { min-height: 620px; }
  .rack-unit { grid-template-columns: 120px 1fr 1.1fr; }
  .rack-unit > *:last-child { display: none; }
  .boundary-section { grid-template-columns: 1fr; }
  .persona-strip { display: grid; grid-template-columns: repeat(2, 1fr); }
  .persona-strip > * { border-bottom: 1px solid #8c8a7a; }
}

@media (max-width: 720px) {
  .site-header { min-height: 78px; }
  .brand { padding: 11px 16px; }
  .brand-mark { width: 42px; height: 42px; }
  .brand-copy b { font-size: 21px; }
  .brand-copy small { display: none; }
  .employee-login { margin-right: 14px; padding: 8px; font-size: 8px; }
  .hero-copy { min-height: auto; padding: 76px 24px 70px; }
  .hero h1 { font-size: clamp(43px, 14vw, 68px); }
  .hero-lede { font-size: 15px; }
  .program-card { margin: 0 16px 36px; border-width: 7px; }
  .topology-section,
  .estate-section,
  .boundary-section,
  .footprint-section { padding: 72px 18px; }
  .section-heading { margin-bottom: 38px; }
  .section-heading h2,
  .boundary-copy h2 { font-size: clamp(39px, 12vw, 60px); }
  .split-heading { grid-template-columns: 1fr; gap: 12px; }
  .overlay-controls { grid-template-columns: 1fr 1fr; }
  .overlay-controls button:nth-child(2) { border-right: 0; }
  .overlay-controls button:nth-child(-n+2) { border-bottom: 1px solid #596058; }
  .topology-console { box-shadow: 6px 6px 0 #060806; }
  .topology-screen { margin: 8px; border-width: 4px; overflow: hidden; }
  .topology-map { width: 100%; height: auto; max-height: none; transform: none; }
  .screen-header span:last-child { display: none; }
  .screen-readout { grid-template-columns: 1fr; }
  .screen-readout p { border-right: 0; border-bottom: 1px solid #304a36; }
  .screen-readout p:last-child { border-bottom: 0; }
  .rack-unit { grid-template-columns: 1fr; gap: 8px; padding: 22px 27px; }
  .rack-unit > p { padding: 0; }
  .rack-unit > *:last-child { display: none; }
  .unit-code { margin-bottom: 2px; }
  .footprint-grid { grid-template-columns: 1fr; }
  .site-card > p { min-height: 0; }
  .site-card header { grid-template-columns: auto 1fr; }
  .site-card header small { grid-column: 2; margin-top: 3px; }
  .persona-strip { grid-template-columns: 1fr; }
  .persona-strip > * { border-right: 0; }
  footer { align-items: flex-start; flex-direction: column; }
  footer p { text-align: left; }
  #chatLaunch { right: 14px; bottom: 14px; }
  #chatPanel { right: 8px; bottom: 8px; width: calc(100vw - 16px); height: min(650px, calc(100vh - 16px)); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}

@media print {
  .site-header nav, .employee-login, #chatLaunch, #chatPanel { display: none !important; }
  body { color: #000; background: #fff; }
}