:root {
  --bg: #07111d;
  --bg-2: #0d1827;
  --panel: #101c2d;
  --panel-2: #18263a;
  --ink: #eef4ff;
  --muted: #92a4bf;
  --line: rgba(163, 191, 231, 0.16);
  --amber: #ffb149;
  --salmon: #ff7c73;
  --violet: #a78bfa;
  --cyan: #4fe3ff;
  --mint: #6ef3c5;
  --display: "Orbitron", sans-serif;
  --mono: "IBM Plex Mono", monospace;
  --radius-xl: 36px;
  --radius-lg: 24px;
  --radius-md: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(79, 227, 255, 0.12), transparent 32%),
    radial-gradient(circle at top right, rgba(255, 177, 73, 0.12), transparent 30%),
    linear-gradient(180deg, #050b14 0%, var(--bg) 42%, #04070d 100%);
  font-family: var(--mono);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body::before,
body::after {
  position: fixed;
  inset: 0;
  content: "";
  pointer-events: none;
}

body::before {
  z-index: -2;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 70px 70px;
  opacity: 0.12;
  mask-image: linear-gradient(to bottom, black, transparent 88%);
}

body::after {
  z-index: 18;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.03), transparent 15%, transparent 85%, rgba(255, 255, 255, 0.03));
  mix-blend-mode: screen;
  opacity: 0.42;
}

a {
  color: inherit;
}

.backdrop,
.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.backdrop {
  z-index: -1;
  background:
    radial-gradient(circle at 20% 20%, rgba(255, 177, 73, 0.18), transparent 0 22%),
    radial-gradient(circle at 70% 12%, rgba(79, 227, 255, 0.18), transparent 0 16%),
    radial-gradient(circle at 80% 78%, rgba(110, 243, 197, 0.12), transparent 0 18%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.02), transparent 60%);
  filter: blur(18px);
}

.scanlines {
  z-index: 17;
  opacity: 0.08;
  background-image: repeating-linear-gradient(to bottom, transparent 0 3px, rgba(255, 255, 255, 0.08) 3px 4px);
}

.shell-header,
.shell,
.shell-footer {
  width: min(100% - 48px, 1480px);
  margin-inline: auto;
}

.shell-header {
  min-height: 108px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding-top: 8px;
}

.section-nav {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  flex: 1 1 420px;
}

.nav-dropdown {
  position: relative;
}

.nav-button {
  border: 0;
  cursor: pointer;
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  z-index: 30;
  min-width: 320px;
  max-width: min(420px, calc(100vw - 32px));
  padding: 10px;
  border: 1px solid rgba(163, 191, 231, 0.18);
  border-radius: 22px;
  background: rgba(8, 14, 24, 0.98);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.nav-dropdown-menu-lighting {
  min-width: 360px;
}

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

.nav-menu-title {
  margin: 4px 8px 10px;
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.nav-menu-link {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 11px 12px;
  border-radius: 16px;
  text-decoration: none;
}

.nav-menu-link:hover {
  background: rgba(255, 255, 255, 0.05);
}

.nav-menu-link strong {
  color: var(--ink);
  font-family: var(--display);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.nav-menu-link small {
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.nav-light-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 8px;
  align-items: center;
  padding: 9px 8px;
  border-radius: 16px;
}

.nav-light-row:hover {
  background: rgba(255, 255, 255, 0.04);
}

.nav-light-row strong {
  color: var(--ink);
  font-family: var(--display);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.nav-light-row small {
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.nav-light-button {
  min-width: 50px;
  padding: 8px 10px;
  border: 1px solid rgba(163, 191, 231, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink);
  font-family: var(--display);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
}

.nav-light-button.active {
  background: linear-gradient(135deg, var(--amber), #ff904f 55%, #ff6b87);
  color: #1a1020;
}

.nav-light-button.inactive {
  background: rgba(7, 17, 29, 0.82);
}

.nav-chip {
  min-height: 42px;
  padding: 0 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid rgba(163, 191, 231, 0.18);
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink);
  text-decoration: none;
  font-family: var(--display);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.nav-chip.active {
  background: linear-gradient(135deg, var(--amber), #ff904f 55%, #ff6b87);
  color: #1a1020;
}

.nav-chip:hover {
  transform: translateY(-1px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  text-decoration: none;
}

.brand-mark {
  width: 62px;
  height: 62px;
  display: grid;
  place-items: center;
  border-radius: 20px 12px 22px 12px;
  background: linear-gradient(135deg, var(--amber), #ff8f4a 55%, #ff6b87 100%);
  color: #1a1020;
  font: 700 22px/1 var(--display);
  box-shadow: 0 18px 40px rgba(255, 161, 86, 0.22);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.brand-copy strong {
  font: 700 19px/1 var(--display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-copy small,
.eyebrow,
.section-note,
.metric span,
.status-chip,
.sensor-meta,
.service-card small,
.link-card small {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.status-strip {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 16px;
  border: 1px solid rgba(163, 191, 231, 0.22);
  border-radius: 999px;
  background: rgba(8, 14, 24, 0.82);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.status-chip-live {
  color: #d9e8ff;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 0 rgba(110, 243, 197, 0.55);
  animation: pulse 2.2s infinite;
}

.shell {
  display: grid;
  gap: 18px;
  padding-bottom: 28px;
}

.panel {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(163, 191, 231, 0.18);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 22%),
    linear-gradient(180deg, rgba(16, 28, 45, 0.96), rgba(9, 16, 27, 0.98));
  box-shadow:
    0 28px 70px rgba(0, 0, 0, 0.42),
    inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.subpage-panel {
  min-height: 72vh;
}

.guide-shell {
  gap: 18px;
}

.guide-header {
  align-items: center;
}

.guide-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 34px;
  align-items: center;
  padding: 54px;
}

.guide-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.guide-status {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 14px;
  padding: 24px;
  border: 1px solid rgba(163, 191, 231, 0.16);
  border-radius: 26px;
  background: rgba(5, 11, 20, 0.58);
}

.guide-status-number,
.step-number {
  color: var(--amber);
  font: 600 13px/1 var(--display);
  letter-spacing: 0.12em;
}

.guide-status strong {
  font: 600 12px/1.2 var(--display);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.guide-status small {
  grid-column: 2;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.5;
}

.guide-status .guide-status-number + strong {
  align-self: end;
}

.guide-panel {
  padding-bottom: 42px;
}

.guide-steps {
  display: grid;
  gap: 0;
  max-width: 980px;
  margin: 0 auto;
  padding: 0;
  list-style: none;
}

.guide-step {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 22px;
  padding: 28px 0;
  border-top: 1px solid var(--line);
}

.guide-step:first-child {
  border-top: 0;
}

.guide-step h3 {
  margin: 0 0 12px;
  font: 600 17px/1.25 var(--display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.guide-step p,
.guide-callout p,
.guide-final p {
  margin: 0 0 14px;
  color: #d8e3f2;
  line-height: 1.7;
}

.guide-step code,
.guide-callout code,
.guide-final code {
  color: var(--cyan);
}

.step-note {
  color: var(--muted) !important;
  font-size: 12px;
}

.command-block {
  position: relative;
  display: grid;
  gap: 8px;
  margin: 18px 0;
  padding: 16px 88px 16px 16px;
  border: 1px solid rgba(79, 227, 255, 0.2);
  border-radius: 16px;
  background: #060d17;
  overflow-x: auto;
}

.command-label {
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.command-block code {
  color: #f3f7ff;
  font: 500 13px/1.5 var(--mono);
  white-space: nowrap;
}

.copy-command {
  position: absolute;
  top: 50%;
  right: 12px;
  transform: translateY(-50%);
  padding: 8px 10px;
  border: 1px solid rgba(163, 191, 231, 0.2);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--ink);
  font: 600 10px var(--display);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
}

.copy-command:hover {
  background: rgba(79, 227, 255, 0.16);
}

.download-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 18px 0;
  padding: 18px;
  border: 1px solid rgba(255, 177, 73, 0.3);
  border-radius: 18px;
  background: rgba(255, 177, 73, 0.07);
  text-decoration: none;
}

.download-card strong,
.download-card small {
  display: block;
}

.download-card strong {
  font: 600 13px/1.3 var(--display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.download-card small {
  margin-top: 6px;
  color: var(--muted);
  font-size: 11px;
}

.download-arrow {
  color: var(--amber);
  font: 600 11px var(--display);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
}

.guide-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.guide-callout h2,
.guide-final h2 {
  margin-bottom: 18px;
  font-size: clamp(22px, 2.2vw, 32px);
}

.guide-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding-left: 20px;
  color: #d8e3f2;
  line-height: 1.6;
}

.guide-list li::marker {
  color: var(--amber);
}

.guide-final {
  padding-bottom: 38px;
}

.download-gate {
  max-width: 980px;
  margin-inline: auto;
  width: 100%;
}

.download-gate h2 {
  margin-bottom: 12px;
  font-size: clamp(22px, 2.2vw, 32px);
}

.download-gate > p:not(.eyebrow) {
  color: #d8e3f2;
  line-height: 1.6;
}

.code-form {
  max-width: 520px;
  margin-top: 22px;
}

.code-form label {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.code-entry {
  display: flex;
  gap: 10px;
}

.code-entry input {
  min-width: 0;
  flex: 1;
  padding: 0 16px;
  border: 1px solid rgba(163, 191, 231, 0.24);
  border-radius: 999px;
  background: rgba(6, 11, 18, 0.72);
  color: var(--ink);
  font: 600 16px var(--mono);
  letter-spacing: 0.2em;
}

.code-entry .primary-link {
  border: 0;
  cursor: pointer;
}

.code-status {
  min-height: 20px;
  margin: 12px 0 0;
  color: var(--mint) !important;
  font-size: 12px;
}

.panel::before {
  position: absolute;
  inset: 18px 18px auto 18px;
  height: 3px;
  content: "";
  border-radius: 999px;
  background: linear-gradient(90deg, var(--amber), var(--salmon) 38%, var(--violet) 72%, var(--cyan));
  opacity: 0.9;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(400px, 0.85fr);
  gap: 28px;
  align-items: center;
  padding: 54px;
}

.hero-copy {
  padding-right: 10px;
}

.eyebrow {
  margin: 0 0 22px;
}

h1,
h2,
.metric strong,
.service-card h3,
.link-card strong {
  margin: 0;
  font-family: var(--display);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

h1 {
  font-size: clamp(40px, 6vw, 82px);
  line-height: 0.92;
  letter-spacing: 0.05em;
}

.intro {
  max-width: 620px;
  margin: 24px 0 0;
  color: #d7e1f4;
  font-size: 17px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.primary-link,
.secondary-link,
.service-link,
.link-card {
  text-decoration: none;
}

.primary-link,
.secondary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 18px;
  border-radius: 999px;
  font: 600 12px/1 var(--display);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.primary-link {
  background: linear-gradient(135deg, var(--amber), #ff904f 55%, #ff6b87);
  color: #1a1020;
  box-shadow: 0 18px 34px rgba(255, 154, 87, 0.22);
}

.secondary-link {
  border: 1px solid rgba(163, 191, 231, 0.24);
  background: rgba(6, 11, 18, 0.72);
}

.primary-link:hover,
.secondary-link:hover,
.service-link:hover,
.link-card:hover {
  transform: translateY(-2px);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}

.metric {
  padding: 16px 15px 14px;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02));
  border: 1px solid rgba(163, 191, 231, 0.14);
}

.metric span {
  display: block;
  margin-bottom: 8px;
}

.metric strong {
  display: block;
  color: var(--ink);
  font-size: 16px;
}

.bridge-display {
  position: relative;
  min-height: 510px;
  border-radius: 34px;
  border: 1px solid rgba(163, 191, 231, 0.18);
  background:
    radial-gradient(circle at 50% 46%, rgba(79, 227, 255, 0.12), transparent 22%),
    radial-gradient(circle at 50% 46%, rgba(255, 177, 73, 0.12), transparent 36%),
    linear-gradient(180deg, rgba(18, 32, 51, 0.96), rgba(8, 14, 24, 0.98));
  overflow: hidden;
}

.bridge-display::before,
.bridge-display::after {
  position: absolute;
  content: "";
}

.bridge-display::before {
  inset: 22px;
  border-radius: 28px;
  border: 1px solid rgba(163, 191, 231, 0.08);
}

.bridge-display::after {
  inset: 0;
  background:
    linear-gradient(120deg, transparent 0 35%, rgba(255, 255, 255, 0.04) 35% 39%, transparent 39% 100%),
    linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.03) 48%, transparent 52%);
}

.bridge-ribbon {
  position: absolute;
  left: 34px;
  right: 34px;
  height: 18px;
  border-radius: 999px;
}

.bridge-ribbon-top {
  top: 34px;
  background: linear-gradient(90deg, var(--amber), #ff8b4f 46%, #ff6e9c 80%, var(--violet));
}

.bridge-ribbon-mid {
  top: 62px;
  right: auto;
  width: 58%;
  background: linear-gradient(90deg, #243651, #314867);
}

.bridge-ribbon-bot {
  bottom: 34px;
  width: 72%;
  background: linear-gradient(90deg, #18263a, #263b59);
}

.bridge-core {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  width: min(50vw, 220px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(79, 227, 255, 0.32), transparent 62%),
    radial-gradient(circle, rgba(255, 177, 73, 0.45), rgba(12, 20, 34, 0.96) 68%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 0 24px rgba(79, 227, 255, 0.05), 0 0 70px rgba(79, 227, 255, 0.2);
  text-align: center;
}

.bridge-core span {
  font: 700 clamp(22px, 2vw, 30px)/1 var(--display);
  letter-spacing: 0.18em;
}

.bridge-core small {
  margin-top: 8px;
  color: #dcecff;
  font-size: 11px;
  letter-spacing: 0.22em;
}

.bridge-panel-card {
  position: absolute;
  max-width: 220px;
  padding: 14px 16px;
  border-radius: 24px;
  border: 1px solid rgba(163, 191, 231, 0.18);
  background: rgba(9, 16, 27, 0.82);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.bridge-panel-card span,
.service-card h3,
.link-card strong,
h2 {
  font-size: 12px;
  line-height: 1.2;
}

.bridge-panel-card span,
.service-card h3,
.link-card strong {
  color: #f3f7ff;
  font-family: var(--display);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.bridge-panel-card small {
  display: block;
  margin-top: 8px;
  color: var(--muted);
}

.bridge-panel-card-left {
  top: 130px;
  left: 34px;
}

.bridge-panel-card-right {
  top: 130px;
  right: 34px;
}

.bridge-panel-card-bottom {
  left: 50%;
  bottom: 94px;
  transform: translateX(-50%);
}

.section-block {
  padding: 30px;
}

.bookmarks-panel {
  padding-bottom: 34px;
  background:
    linear-gradient(180deg, rgba(255, 177, 73, 0.06), transparent 24%),
    linear-gradient(180deg, rgba(16, 28, 45, 0.97), rgba(8, 14, 24, 0.99));
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 22px;
}

.section-head h2 {
  color: var(--ink);
  font-size: clamp(24px, 2.2vw, 38px);
  line-height: 1;
  letter-spacing: 0.06em;
}

.section-note {
  max-width: 400px;
  margin: 0;
  line-height: 1.6;
  text-align: right;
}

.card-grid,
.sublink-row,
.light-grid,
.bookmark-grid,
.service-columns,
.quick-links {
  display: grid;
  gap: 14px;
}

.sublink-row {
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin-bottom: 14px;
}

.sublink-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--accent, var(--cyan));
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink);
  text-decoration: none;
  font-family: var(--display);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.card-grid-sensors {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.light-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

body[data-page="lighting"] .light-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

body[data-page="lighting"] .light-card {
  min-height: 184px;
}

.bookmark-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.bookmarks-panel .bookmark-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.service-columns {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.service-group {
  display: grid;
  gap: 12px;
}

.group-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 4px;
}

.group-title strong {
  font-family: var(--display);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.group-title span {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.sensor-card,
.light-card,
.service-card,
.link-card {
  position: relative;
  padding: 18px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(163, 191, 231, 0.16);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 24%),
    linear-gradient(180deg, rgba(15, 24, 39, 0.96), rgba(10, 15, 24, 0.98));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.bookmarks-panel .link-card {
  min-height: 150px;
}

.sensor-card::before,
.light-card::before,
.service-card::before,
.link-card::before {
  position: absolute;
  inset: 0 auto 0 0;
  width: 8px;
  content: "";
  border-radius: 999px;
  background: var(--accent, var(--amber));
}

.sensor-card {
  min-height: 154px;
}

.light-card {
  display: grid;
  gap: 14px;
  min-height: 168px;
}

.sensor-top,
.light-top,
.service-top,
.link-top {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 12px;
}

.sensor-card h3 {
  margin-top: 0;
  margin-bottom: 6px;
  font: 700 15px/1.2 var(--display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.light-card h3 {
  margin: 0;
  font: 700 15px/1.2 var(--display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.light-state {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.light-state strong {
  color: var(--ink);
}

.light-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.light-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.light-button {
  min-width: 84px;
  border: 0;
  border-radius: 999px;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--ink);
  font-family: var(--display);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
}

.light-button.active {
  background: linear-gradient(135deg, var(--amber), #ff904f 55%, #ff6b87);
  color: #1a1020;
}

.light-button.inactive {
  border: 1px solid rgba(163, 191, 231, 0.2);
  background: rgba(7, 17, 29, 0.82);
}

.light-button:disabled {
  opacity: 0.6;
  cursor: progress;
}

.sensor-value {
  margin: 16px 0 10px;
  font: 700 clamp(20px, 2.2vw, 30px)/1 var(--display);
  letter-spacing: 0.05em;
}

.sensor-detail,
.light-detail,
.service-card p,
.link-card p {
  margin: 0;
  color: #d8e3f2;
  line-height: 1.6;
}

.sensor-gauge {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

.bar {
  flex: 1;
  height: 8px;
  border-radius: 999px;
  background: rgba(163, 191, 231, 0.14);
  overflow: hidden;
}

.bar span {
  display: block;
  height: 100%;
  width: var(--fill, 55%);
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent, var(--amber)), var(--accent, var(--amber)));
}

.service-group .service-card + .service-card,
.service-group .link-card + .link-card {
  margin-top: 0;
}

.service-card {
  display: grid;
  gap: 16px;
  min-height: 166px;
}

.service-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.service-badge {
  padding: 8px 11px;
  border-radius: 999px;
  border: 1px solid rgba(163, 191, 231, 0.16);
  background: rgba(255, 255, 255, 0.03);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.service-link,
.link-card {
  display: grid;
  gap: 12px;
}

.service-link {
  align-self: start;
  width: fit-content;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  font: 600 11px/1 var(--display);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.quick-links {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.link-card {
  min-height: 124px;
}

.link-card strong {
  font-size: 13px;
}

.shell-footer {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 16px;
  min-height: 92px;
  padding-bottom: 22px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.shell-footer p,
.shell-footer a {
  margin: 0;
}

.shell-footer a {
  text-decoration: none;
}

.shell-footer a:hover,
.service-link:hover,
.primary-link:hover,
.secondary-link:hover,
.link-card:hover {
  filter: brightness(1.06);
}

.shell-footer p:nth-child(2) {
  text-align: center;
}

*:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

@keyframes pulse {
  70% {
    box-shadow: 0 0 0 10px rgba(110, 243, 197, 0);
  }
}

@media (max-width: 1180px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .bridge-display {
    min-height: 440px;
  }

  .quick-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .shell-header,
  .shell,
  .shell-footer {
    width: min(100% - 28px, 100%);
  }

  .shell-header {
    min-height: auto;
    padding-top: 16px;
    padding-bottom: 6px;
    align-items: start;
    flex-direction: column;
  }

  .guide-header {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .section-nav {
    width: 100%;
    justify-content: flex-start;
  }

  .nav-dropdown-menu {
    left: 0;
    right: auto;
  }

  .status-strip {
    width: 100%;
    justify-content: space-between;
  }

  .hero,
  .guide-hero,
  .section-block {
    padding: 22px;
  }

  .guide-hero,
  .guide-columns {
    grid-template-columns: 1fr;
  }

  .hero-metrics,
  .sublink-row,
  .card-grid-sensors,
  .light-grid,
  .bookmark-grid,
  .service-columns,
  .quick-links {
    grid-template-columns: 1fr;
  }

  .section-head {
    align-items: start;
    flex-direction: column;
  }

  .section-note {
    text-align: left;
  }

  .bridge-display {
    min-height: 380px;
  }

  .bridge-panel-card-left {
    left: 22px;
  }

  .bridge-panel-card-right {
    right: 22px;
  }

  .bridge-panel-card-bottom {
    bottom: 82px;
  }

  .shell-footer {
    grid-template-columns: 1fr;
    justify-items: start;
    padding-bottom: 18px;
  }

  .shell-footer p:nth-child(2) {
    text-align: left;
  }
}

@media (max-width: 640px) {
  .shell-header,
  .shell,
  .shell-footer {
    width: calc(100% - 20px);
  }

  .shell-header {
    gap: 10px;
    padding-top: 10px;
  }

  .guide-header .brand {
    gap: 10px;
    min-width: 0;
  }

  .guide-header .brand-copy strong {
    font-size: 13px;
    letter-spacing: 0.05em;
  }

  .guide-header .brand-copy small {
    font-size: 9px;
  }

  .guide-header .brand-mark {
    flex: 0 0 46px;
    height: 46px;
    width: 46px;
  }

  .guide-header .nav-chip {
    min-height: 38px;
    padding: 0 11px;
    font-size: 9px;
    letter-spacing: 0.08em;
    white-space: nowrap;
  }

  .guide-shell {
    gap: 12px;
  }

  .panel {
    border-radius: 24px;
  }

  .panel::before {
    inset: 12px 12px auto;
  }

  .brand-copy small {
    letter-spacing: 0.1em;
  }

  .brand-mark {
    width: 54px;
    height: 54px;
    font-size: 18px;
  }

  h1 {
    max-width: 9ch;
    font-size: clamp(32px, 12vw, 48px);
    line-height: 0.98;
  }

  .intro {
    font-size: 15px;
    line-height: 1.55;
  }

  .guide-actions {
    gap: 8px;
    margin-top: 22px;
  }

  .guide-status {
    grid-template-columns: 32px 1fr;
    gap: 6px 10px;
    border-radius: 18px;
  }

  .guide-status small {
    margin-bottom: 6px;
    font-size: 10px;
  }

  .section-block {
    padding: 20px 16px;
  }

  .section-head {
    gap: 12px;
    margin-bottom: 16px;
  }

  .section-head h2,
  .guide-callout h2,
  .guide-final h2,
  .download-gate h2 {
    font-size: 22px;
    line-height: 1.1;
  }

  .eyebrow {
    margin-bottom: 14px;
    font-size: 10px;
  }

  .guide-step h3 {
    font-size: 15px;
  }

  .guide-step p,
  .guide-callout p,
  .guide-final p {
    font-size: 14px;
    line-height: 1.6;
  }

  .primary-link,
  .secondary-link {
    width: 100%;
  }

  .guide-hero {
    gap: 24px;
  }

  .guide-status {
    padding: 18px;
  }

  .guide-step {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 22px 0;
  }

  .step-number {
    font-size: 11px;
  }

  .code-entry {
    align-items: stretch;
    flex-direction: column;
  }

  .code-entry input {
    min-height: 50px;
    width: 100%;
  }

  .download-card {
    align-items: flex-start;
    flex-direction: column;
  }

  .download-arrow {
    padding-top: 4px;
  }

  .bridge-display {
    min-height: 320px;
  }

  .bridge-core {
    width: 176px;
  }

  .bridge-panel-card {
    max-width: 170px;
    padding: 12px 13px;
  }

  .bridge-panel-card-left,
  .bridge-panel-card-right {
    top: 118px;
  }

  .bridge-panel-card-bottom {
    bottom: 74px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}