:root {
  --obsidian: #0B0D10;
  --charcoal: #12161B;
  --charcoal-elevated: #181D24;
  --charcoal-card: #151A21;
  --charcoal-card-hover: #1C222B;
  --travertine: #F4F1EA;
  --alabaster: #FAF8F5;
  --warm-gray: #D5D0C5;
  --muted-stone: #A7A29A;
  --bronze: #C5A572;
  --bronze-light: #DFC496;
  --bronze-dark: #9A7B4F;
  --slate-border: rgba(197, 165, 114, 0.22);
  --border-gold: rgba(197, 165, 114, 0.28);
  --slate-subtle: rgba(244, 241, 234, 0.08);
  --crimson: #B8292F;
  --crimson-glow: rgba(184, 41, 47, 0.25);
  --amber-alert: #D97706;
  --emerald-clean: #2E9B68;
  --emerald-glow: rgba(46, 155, 104, 0.2);
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --max-w: 1360px;
  --radius-lg: 14px;
  --radius-md: 8px;
  --shadow-luxury: 0 24px 60px rgba(0, 0, 0, 0.55);
  --transition-smooth: all 0.32s cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background-color: var(--obsidian);
  color: var(--travertine);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--obsidian);
  color: var(--travertine);
  overflow-x: hidden;
}

section[id] {
  scroll-margin-top: 96px;
}

h1, h2, h3, h4,
.hero-title,
.section-title,
.tier-name,
.pillar-title {
  text-wrap: balance;
}

p,
.hero-lead,
.section-subtitle,
.pillar-body,
.tier-desc,
.seq-desc {
  text-wrap: pretty;
}

.metric-val,
.aqi-number,
.iaq-out-num,
.iaq-in-num,
.ts-metrics-list,
.tele-mini-cell,
.review-stat-score,
#slider-aqi-val,
.telemetry-addon-price {
  font-variant-numeric: tabular-nums;
}

img, video {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-smooth);
}

ul {
  list-style: none;
}

code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  color: var(--bronze-light);
  background: rgba(197, 165, 114, 0.1);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
}

/* Focus-visible Accessibility Ring */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
video:focus-visible {
  outline: 2px solid var(--bronze-light);
  outline-offset: 3px;
}

/* Top Credential Bar */
.top-credential-bar {
  background: linear-gradient(90deg, #080A0C 0%, #131820 50%, #080A0C 100%);
  border-bottom: 1px solid var(--slate-border);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-stone);
  padding: 0.55rem 2rem;
}

.top-credential-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.credential-left {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.credential-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--bronze-light);
  font-weight: 600;
}

.telemetry-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--emerald-clean);
  box-shadow: 0 0 10px var(--emerald-clean);
  display: inline-block;
  margin-right: 0.45rem;
  animation: pulseDot 2.2s infinite;
}

@keyframes pulseDot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.65; }
}

.credential-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

/* Sticky Luxury Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(11, 13, 16, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--slate-subtle);
}

.nav-container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0.9rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.25rem;
  position: relative;
}

.brand-identity {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  min-width: 0;
}

.brand-logo {
  height: 46px;
  width: auto;
  object-fit: contain;
  flex-shrink: 0;
}

.brand-text-wrap {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--travertine);
  line-height: 1.1;
}

.brand-sub {
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--bronze);
  margin-top: 0.18rem;
}

.primary-nav {
  display: flex;
  align-items: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.nav-mobile-cta {
  display: none;
}

.nav-page-pill {
  font-size: 0.81rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--warm-gray);
  padding: 0.55rem 0.95rem;
  border-radius: 6px;
  border: 1px solid transparent;
  transition: var(--transition-smooth);
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
}

.nav-page-pill:hover {
  color: var(--bronze-light);
  background: rgba(197, 165, 114, 0.08);
  border-color: rgba(197, 165, 114, 0.22);
}

.nav-page-pill.active,
.nav-page-pill[aria-current="page"] {
  color: var(--travertine);
  background: rgba(197, 165, 114, 0.15);
  border-color: var(--bronze);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-shrink: 0;
}

.mobile-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 44px;
  min-width: 44px;
  padding: 0.5rem 0.85rem;
  border-radius: 6px;
  background: rgba(197, 165, 114, 0.12);
  border: 1px solid var(--bronze);
  color: var(--travertine);
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.mobile-menu-toggle:hover {
  background: rgba(197, 165, 114, 0.22);
  color: var(--bronze-light);
}

.menu-bars {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 16px;
}

.menu-bars span {
  display: block;
  width: 16px;
  height: 2px;
  background: var(--bronze-light);
  border-radius: 2px;
  transition: var(--transition-smooth);
}

.site-header.nav-open .menu-bars span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.site-header.nav-open .menu-bars span:nth-child(2) {
  opacity: 0;
}

.site-header.nav-open .menu-bars span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.65rem;
  min-height: 44px;
  font-size: 0.84rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-smooth);
  border: 1px solid transparent;
  font-family: var(--font-sans);
}

.btn-primary {
  background: linear-gradient(135deg, var(--bronze) 0%, var(--bronze-dark) 100%);
  color: var(--obsidian);
  font-weight: 700;
  box-shadow: 0 8px 25px rgba(197, 165, 114, 0.25);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--bronze-light) 0%, var(--bronze) 100%);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(197, 165, 114, 0.38);
}

.btn-secondary {
  background: rgba(244, 241, 234, 0.04);
  color: var(--travertine);
  border: 1px solid var(--slate-border);
}

.btn-secondary:hover {
  border-color: var(--bronze);
  background: rgba(197, 165, 114, 0.1);
}

.btn-sm {
  padding: 0.58rem 1.05rem;
  font-size: 0.76rem;
}

/* Hero Section */
.hero-section {
  position: relative;
  padding: 4.5rem 2rem 5rem;
  background:
    radial-gradient(circle at 82% 18%, rgba(197, 165, 114, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 12% 80%, rgba(184, 41, 47, 0.08) 0%, transparent 40%),
    linear-gradient(180deg, var(--obsidian) 0%, var(--charcoal) 100%);
  border-bottom: 1px solid var(--slate-subtle);
}

.hero-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.eyebrow-tag {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  max-width: 100%;
  gap: 0.5rem;
  font-size: 0.76rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--bronze-light);
  background: rgba(197, 165, 114, 0.08);
  border: 1px solid var(--slate-border);
  padding: 0.45rem 1rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
}

.eyebrow-tag .crimson-bar {
  width: 18px;
  height: 2px;
  background-color: var(--crimson);
  display: inline-block;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.55rem, 4.4vw, 4.15rem);
  font-weight: 500;
  line-height: 1.08;
  color: var(--travertine);
  margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
}

.hero-title em {
  font-style: italic;
  color: var(--bronze-light);
  font-weight: 400;
}

.hero-lead {
  font-size: 1.1rem;
  color: var(--muted-stone);
  max-width: 650px;
  margin-bottom: 2.2rem;
  line-height: 1.75;
}

.hero-lead strong {
  color: var(--travertine);
  font-weight: 600;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.75rem;
}

.hero-metrics-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  padding-top: 2rem;
  border-top: 1px solid var(--slate-subtle);
}

.metric-item {
  display: flex;
  flex-direction: column;
}

.metric-val {
  font-family: var(--font-serif);
  font-size: 1.95rem;
  font-weight: 600;
  color: var(--bronze-light);
  line-height: 1.1;
}

.metric-label {
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted-stone);
  margin-top: 0.35rem;
}

/* Hero Visual Showcase */
.hero-visual-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--slate-border);
  box-shadow: var(--shadow-luxury);
  background: var(--charcoal-card);
}

.hero-image-wrap {
  position: relative;
  aspect-ratio: 4 / 4.4;
  overflow: hidden;
}

.hero-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.04) brightness(0.92);
}

.hero-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 13, 16, 0.15) 0%, rgba(11, 13, 16, 0.4) 55%, rgba(11, 13, 16, 0.95) 100%);
}

.hero-floating-badge {
  position: absolute;
  top: 1.25rem;
  left: 1.25rem;
  right: 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  background: rgba(11, 13, 16, 0.82);
  backdrop-filter: blur(12px);
  border: 1px solid var(--slate-border);
  padding: 0.65rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-caption-panel {
  position: absolute;
  bottom: 1.25rem;
  left: 1.25rem;
  right: 1.25rem;
  background: rgba(18, 22, 27, 0.9);
  backdrop-filter: blur(14px);
  border: 1px solid var(--slate-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.hero-caption-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--travertine);
  margin-bottom: 0.35rem;
}

.hero-caption-sub {
  font-size: 0.82rem;
  color: var(--muted-stone);
  margin-bottom: 0.9rem;
}

.hero-telemetry-mini {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--slate-subtle);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.tele-mini-cell span {
  display: block;
  color: var(--muted-stone);
  font-size: 0.65rem;
  text-transform: uppercase;
}

.tele-mini-cell strong {
  color: var(--emerald-clean);
  font-size: 0.82rem;
}

/* Section Scaffolding */
.section-block {
  padding: 6rem 2rem;
  border-bottom: 1px solid var(--slate-subtle);
}

.section-block.alt-bg {
  background-color: var(--charcoal);
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
}

.section-header {
  max-width: 820px;
  margin-bottom: 3.5rem;
}

.section-header.centered {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2.15rem, 3.4vw, 3.2rem);
  font-weight: 500;
  line-height: 1.14;
  margin-bottom: 1rem;
  color: var(--travertine);
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--muted-stone);
  line-height: 1.75;
}

/* Six Pillars / Safe Haven Layers Grid */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.pillar-card {
  background: var(--charcoal-card);
  border: 1px solid var(--slate-subtle);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.pillar-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--bronze), transparent);
  opacity: 0.6;
}

.pillar-card:hover {
  border-color: var(--bronze);
  background: var(--charcoal-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-luxury);
}

.pillar-index {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--bronze);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.85rem;
}

.pillar-title {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--travertine);
  line-height: 1.22;
  margin-bottom: 0.9rem;
}

.pillar-body {
  font-size: 0.93rem;
  color: var(--muted-stone);
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

/* Interactive Wildfire-Smoke Vault Simulator */
.simulator-shell {
  background: linear-gradient(145deg, #10141A 0%, #171D26 100%);
  border: 1px solid var(--slate-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-luxury);
  transition: var(--transition-smooth);
}

.simulator-shell.wildfire-active,
.simulator-shell.smoke-mode {
  border-color: rgba(184, 41, 47, 0.65);
  box-shadow: 0 24px 70px rgba(184, 41, 47, 0.2);
}

.sim-top-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--slate-subtle);
  margin-bottom: 2.25rem;
}

.sim-mode-buttons {
  display: flex;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.sim-mode-btn {
  padding: 0.72rem 1.2rem;
  min-height: 44px;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  border: 1px solid var(--slate-border);
  background: rgba(244, 241, 234, 0.04);
  color: var(--travertine);
  transition: var(--transition-smooth);
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.sim-mode-btn:hover {
  border-color: var(--bronze-light);
  background: rgba(197, 165, 114, 0.12);
}

.sim-mode-btn.active {
  border-color: var(--bronze-light);
  background: rgba(197, 165, 114, 0.22);
  color: var(--travertine);
  box-shadow: 0 0 18px rgba(197, 165, 114, 0.22);
}

#mode-wildfire.active {
  background: linear-gradient(135deg, var(--crimson) 0%, #8E1D22 100%);
  border-color: #E15B64;
  color: #FFFFFF;
  box-shadow: 0 0 22px rgba(184, 41, 47, 0.42);
}

#mode-normal.active {
  background: rgba(46, 155, 104, 0.22);
  border-color: var(--emerald-clean);
  color: #ECFDF5;
}

.sim-slider-wrap {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  background: rgba(11, 13, 16, 0.65);
  padding: 0.65rem 1.15rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--slate-subtle);
}

.sim-slider-wrap label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted-stone);
  white-space: nowrap;
}

.sim-aqi-slider {
  width: 170px;
  accent-color: var(--crimson);
  cursor: pointer;
  min-height: 32px;
}

#slider-aqi-val {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--bronze-light);
  white-space: nowrap;
}

.sim-status-banner {
  padding: 1rem 1.35rem;
  border-radius: var(--radius-md);
  margin-bottom: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.81rem;
  background: rgba(46, 155, 104, 0.12);
  border: 1px solid rgba(46, 155, 104, 0.4);
  color: #A7F3D0;
  transition: var(--transition-smooth);
}

.simulator-shell.wildfire-active .sim-status-banner,
.simulator-shell.smoke-mode .sim-status-banner,
.sim-status-banner.smoke-alert,
.sim-status-banner.danger {
  background: rgba(184, 41, 47, 0.18);
  border-color: rgba(225, 91, 100, 0.65);
  color: #FECACA;
}

.sim-touchscreens-grid {
  display: grid;
  grid-template-columns: 1fr 0.85fr 1fr;
  gap: 1.5rem;
  align-items: stretch;
}

.touchscreen-card {
  background: #0B0E13;
  border: 1px solid var(--slate-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-smooth);
}

.touchscreen-card.outdoor-panel.smoke-alert,
.touchscreen-card.outdoor-panel.danger {
  border-color: var(--crimson);
  background: linear-gradient(180deg, rgba(184, 41, 47, 0.14) 0%, #0B0E13 100%);
}

.touchscreen-card.indoor-panel {
  border-color: var(--emerald-clean);
  background: linear-gradient(180deg, rgba(46, 155, 104, 0.1) 0%, #0B0E13 100%);
}

.ts-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
}

.ts-title {
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted-stone);
}

.sim-status-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.28rem 0.7rem;
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.sim-status-pill.safe {
  background: rgba(46, 155, 104, 0.18);
  color: #6EE7B7;
  border: 1px solid rgba(46, 155, 104, 0.45);
}

.sim-status-pill.danger {
  background: rgba(184, 41, 47, 0.25);
  color: #FCA5A5;
  border: 1px solid rgba(225, 91, 100, 0.55);
}

.aqi-big-display {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1.35rem;
}

.aqi-number {
  font-family: var(--font-mono);
  font-size: 3.6rem;
  font-weight: 700;
  line-height: 1;
}

.outdoor-panel .aqi-number {
  color: var(--emerald-clean);
}

.outdoor-panel.smoke-alert .aqi-number,
.outdoor-panel.danger .aqi-number {
  color: #F87171;
}

.indoor-panel .aqi-number {
  color: var(--emerald-clean);
}

.aqi-unit-wrap {
  display: flex;
  flex-direction: column;
}

.aqi-unit-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted-stone);
  text-transform: uppercase;
}

.aqi-condition-text {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--travertine);
}

.ts-metrics-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  padding-top: 1.15rem;
  border-top: 1px solid var(--slate-subtle);
  font-family: var(--font-mono);
  font-size: 0.76rem;
}

.ts-metrics-list li {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  color: var(--muted-stone);
}

.ts-metrics-list strong {
  color: var(--travertine);
}

/* Center Mechanical Damper Card */
.mechanical-schematic-card {
  background: rgba(18, 22, 27, 0.95);
  border: 1px solid var(--slate-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.damper-svg-box {
  width: 100%;
  max-width: 240px;
  margin: 0.85rem auto;
}

.sequence-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.85rem;
  margin-top: 2rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--slate-subtle);
}

.seq-step {
  background: rgba(11, 13, 16, 0.65);
  border: 1px solid var(--slate-subtle);
  border-radius: var(--radius-md);
  padding: 1rem;
  font-size: 0.78rem;
  transition: var(--transition-smooth);
}

.seq-step.active,
.seq-step.active-step {
  border-color: var(--bronze);
  background: rgba(197, 165, 114, 0.1);
}

.simulator-shell.wildfire-active .seq-step.active-step,
.seq-step.active-smoke {
  border-color: #E15B64;
  background: rgba(184, 41, 47, 0.14);
}

.seq-num {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--bronze);
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.3rem;
}

.seq-title {
  font-weight: 700;
  color: var(--travertine);
  margin-bottom: 0.25rem;
}

.seq-desc {
  color: var(--muted-stone);
  font-size: 0.75rem;
  line-height: 1.48;
}

/* 4-Metric IAQ Telemetry Grid */
.iaq-metrics-4-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-top: 1.75rem;
}

.iaq-metric-card {
  background: rgba(15, 19, 25, 0.92);
  border: 1px solid var(--slate-border);
  border-radius: var(--radius-md);
  padding: 1.35rem;
  transition: var(--transition-smooth);
}

.iaq-metric-card.sanctuary-highlight {
  border-color: rgba(46, 155, 104, 0.45);
}

.iaq-metric-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--bronze-light);
  margin-bottom: 0.6rem;
}

.iaq-dual-numbers {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.65rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.iaq-out-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted-stone);
}

.iaq-in-num {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--emerald-clean);
}

.iaq-bar-track {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.07);
  border-radius: 99px;
  overflow: hidden;
  margin-bottom: 0.65rem;
}

.iaq-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--emerald-clean), var(--bronze));
  border-radius: 99px;
  transition: width 0.4s ease;
}

/* Comparison Matrix Table (White Glove Page) */
.comparison-matrix-wrap {
  background: var(--charcoal-card);
  border: 1px solid var(--slate-border);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  box-shadow: var(--shadow-luxury);
  margin-bottom: 1rem;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  min-width: 680px;
}

.comparison-table th,
.comparison-table td {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--slate-subtle);
  font-size: 0.9rem;
  vertical-align: top;
}

.comparison-table thead th {
  background: #0E1217;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--travertine);
  border-bottom: 2px solid var(--slate-border);
}

.comparison-table thead th.col-reas {
  background: linear-gradient(180deg, rgba(197, 165, 114, 0.18) 0%, rgba(197, 165, 114, 0.05) 100%);
  color: var(--bronze-light);
  border-left: 1px solid var(--slate-border);
}

.comparison-table tbody td.col-reas {
  background: rgba(197, 165, 114, 0.05);
  border-left: 1px solid var(--slate-border);
  color: var(--travertine);
  font-weight: 500;
}

.comparison-feature-name {
  font-weight: 600;
  color: var(--travertine);
  width: 24%;
}

.comparison-bad-cell {
  color: var(--muted-stone);
  width: 34%;
}

.comparison-good-cell {
  width: 42%;
}

/* White Glove Membership Tiers */
.tiers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  align-items: stretch;
}

.tier-card {
  background: var(--charcoal-card);
  border: 1px solid var(--slate-subtle);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: var(--transition-smooth);
}

.tier-card.flagship {
  border: 1.5px solid var(--bronze);
  background: linear-gradient(180deg, #1A2029 0%, #13171E 100%);
  box-shadow: 0 24px 65px rgba(197, 165, 114, 0.16);
}

.flagship-ribbon {
  position: absolute;
  top: -13px;
  right: 1.75rem;
  background: linear-gradient(135deg, var(--bronze) 0%, var(--bronze-dark) 100%);
  color: var(--obsidian);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  padding: 0.3rem 0.9rem;
  border-radius: 100px;
}

.tier-name {
  font-family: var(--font-serif);
  font-size: 1.85rem;
  color: var(--travertine);
  margin-bottom: 0.35rem;
}

.tier-cadence {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--bronze-light);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.25rem;
}

.tier-desc {
  font-size: 0.9rem;
  color: var(--muted-stone);
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--slate-subtle);
}

.tier-features {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 2rem;
  font-size: 0.88rem;
  color: var(--travertine);
}

.tier-features li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
}

.tier-features li .check {
  color: var(--bronze-light);
  font-weight: 700;
  flex-shrink: 0;
}

.tier-pricing-box {
  padding-top: 1.25rem;
  border-top: 1px solid var(--slate-subtle);
  margin-bottom: 1.25rem;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--bronze-light);
}

.telemetry-addon-callout {
  margin-top: 2.5rem;
  background: linear-gradient(135deg, rgba(197, 165, 114, 0.12) 0%, rgba(18, 22, 27, 0.96) 100%);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
}

.telemetry-addon-callout > div {
  min-width: 0;
  max-width: 100%;
}

.telemetry-addon-callout h3 {
  font-family: var(--font-serif);
  font-size: 1.85rem;
  color: var(--travertine);
  margin-bottom: 0.5rem;
}

.telemetry-addon-price {
  color: var(--bronze-light);
  font-family: var(--font-mono);
  font-size: 1.5rem;
}

.telemetry-addon-callout p {
  color: var(--warm-gray);
  font-size: 0.94rem;
  max-width: 820px;
}

/* Real Project Gallery & Filterable Portfolio */
.portfolio-filter-bar {
  display: flex;
  gap: 0.65rem;
  flex-wrap: wrap;
  margin-bottom: 1.75rem;
}

.filter-btn {
  padding: 0.6rem 1.2rem;
  min-height: 44px;
  border-radius: 100px;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(244, 241, 234, 0.04);
  border: 1px solid var(--slate-subtle);
  color: var(--muted-stone);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.filter-btn.active,
.filter-btn:hover {
  background: var(--bronze);
  color: var(--obsidian);
  border-color: var(--bronze);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.video-mini-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.portfolio-item {
  background: var(--charcoal-card);
  border: 1px solid var(--slate-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition-smooth);
}

.portfolio-item:hover {
  border-color: var(--bronze);
  transform: translateY(-4px);
}

.portfolio-img-box {
  aspect-ratio: 16 / 11;
  overflow: hidden;
  position: relative;
}

.portfolio-img-box.compact {
  height: 155px;
  aspect-ratio: auto;
}

.portfolio-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.portfolio-item:hover .portfolio-img-box img {
  transform: scale(1.05);
}

.portfolio-tag {
  position: absolute;
  top: 0.85rem;
  left: 0.85rem;
  background: rgba(11, 13, 16, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid var(--slate-border);
  padding: 0.25rem 0.65rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  color: var(--bronze-light);
}

.portfolio-info {
  padding: 1.25rem;
}

.portfolio-info h3 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--travertine);
  margin-bottom: 0.35rem;
}

.portfolio-info p {
  font-size: 0.84rem;
  color: var(--muted-stone);
}

/* Video Walkthrough Banner */
.video-walkthrough-banner {
  margin-top: 2.5rem;
  margin-bottom: 2.5rem;
  background: linear-gradient(135deg, #141920 0%, #0E1217 100%);
  border: 1px solid var(--slate-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.5rem;
  align-items: center;
}

.video-frame-wrap {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--slate-border);
  background: #000;
}

.video-frame-wrap video {
  width: 100%;
  max-height: 400px;
  object-fit: cover;
}

/* Enclaves Strip */
.enclaves-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.enclave-card {
  background: var(--charcoal-card);
  border: 1px solid var(--slate-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.enclave-card h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--travertine);
  margin-bottom: 0.25rem;
}

.enclave-zip {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--bronze);
  margin-bottom: 0.65rem;
  display: block;
}

.enclave-card p {
  font-size: 0.84rem;
  color: var(--muted-stone);
}

/* Private Consultation Form */
.consultation-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 3.5rem;
  align-items: start;
}

.consult-contact-details {
  margin-top: 1.5rem;
  padding: 1.35rem 1.5rem;
  background: var(--charcoal-card);
  border: 1px solid var(--slate-border);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  font-size: 0.92rem;
  color: var(--warm-gray);
}

.consult-contact-details strong {
  color: var(--bronze-light);
}

.consult-form-card {
  background: var(--charcoal-card);
  border: 1px solid var(--slate-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-luxury);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-bottom: 1.25rem;
}

.form-row .form-group {
  margin-bottom: 0;
}

.form-group label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--bronze-light);
  font-weight: 600;
}

.form-control {
  background: #0B0E13;
  border: 1px solid var(--slate-subtle);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  color: var(--travertine);
  font-family: var(--font-sans);
  font-size: 1rem; /* 16px minimum prevents iOS Safari zoom on focus */
  line-height: 1.4;
  min-height: 46px;
  transition: var(--transition-smooth);
}

.form-control:focus {
  border-color: var(--bronze);
  background: #0F131A;
}

.form-submit-btn {
  width: 100%;
  margin-top: 0.25rem;
}

.form-feedback {
  margin-top: 1.15rem;
  padding: 1.1rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  line-height: 1.6;
}

.form-feedback strong {
  display: block;
  margin-bottom: 0.3rem;
  font-size: 0.98rem;
}

.form-feedback-success {
  background: rgba(46, 155, 104, 0.14);
  border: 1px solid rgba(46, 155, 104, 0.5);
  color: #D1FAE5;
}

.form-feedback-success strong {
  color: #ECFDF5;
}

.form-feedback-success a {
  color: var(--bronze-light);
  text-decoration: underline;
  font-weight: 600;
}

.form-feedback-error {
  background: rgba(184, 41, 47, 0.16);
  border: 1px solid rgba(225, 91, 100, 0.6);
  color: #FECACA;
}

/* Footer */
.site-footer {
  background: #07090B;
  padding: 4.5rem 2rem 2.5rem;
  border-top: 1px solid var(--slate-border);
  font-size: 0.86rem;
  color: var(--muted-stone);
}

.footer-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--slate-subtle);
}

.footer-heading {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--travertine);
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a:hover {
  color: var(--bronze-light);
}

.footer-bottom {
  max-width: var(--max-w);
  margin: 2rem auto 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.78rem;
}

/* 3 Client Tracks Grid */
.tracks-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.track-card {
  background: var(--charcoal-card);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
  box-shadow: var(--shadow-luxury);
}

.track-card:hover {
  transform: translateY(-6px);
  border-color: var(--bronze);
}

.track-card-media {
  position: relative;
  height: 230px;
  overflow: hidden;
}

.track-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.track-card:hover .track-card-media img {
  transform: scale(1.05);
}

.track-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(11, 13, 16, 0.88);
  backdrop-filter: blur(8px);
  color: var(--bronze-light);
  border: 1px solid var(--border-gold);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 5px 11px;
  border-radius: 4px;
}

.track-card-body {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.track-card-body h3 {
  font-family: var(--font-serif);
  font-size: 1.55rem;
  color: var(--travertine);
  margin-bottom: 0.75rem;
  line-height: 1.25;
}

.track-card-body p {
  color: var(--muted-stone);
  font-size: 0.94rem;
  line-height: 1.65;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

/* 9 Specialized Services Grid */
.services-9-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.service-9-card {
  background: rgba(21, 26, 33, 0.85);
  border: 1px solid rgba(197, 165, 114, 0.18);
  border-radius: var(--radius-md);
  padding: 1.85rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.service-9-card:hover {
  border-color: var(--bronze);
  transform: translateY(-4px);
}

.service-9-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.service-9-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--bronze);
  letter-spacing: 0.14em;
}

.service-9-badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 3px 9px;
  border-radius: 99px;
  background: rgba(197, 165, 114, 0.12);
  color: var(--bronze-light);
}

.service-9-card h3 {
  font-family: var(--font-serif);
  font-size: 1.38rem;
  color: var(--travertine);
  margin-bottom: 0.65rem;
  line-height: 1.28;
}

.service-9-card p {
  font-size: 0.9rem;
  color: var(--muted-stone);
  line-height: 1.62;
  margin-bottom: 1.2rem;
}

.service-9-link {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bronze-light);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.service-9-link:hover {
  color: var(--travertine);
}

/* 5.0-Star Verified Client Reviews Section */
.reviews-summary-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  background: linear-gradient(90deg, rgba(21, 26, 33, 0.95), rgba(28, 35, 45, 0.95));
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  padding: 1.75rem 2.25rem;
  margin-bottom: 2.5rem;
}

.review-stat-box {
  display: flex;
  align-items: center;
  gap: 1.1rem;
}

.review-stat-score {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 600;
  color: var(--bronze-light);
  line-height: 1;
}

.review-stars {
  color: #EAB308;
  font-size: 1.05rem;
  letter-spacing: 2px;
}

.review-stat-label {
  font-size: 0.82rem;
  color: var(--muted-stone);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.review-card {
  background: var(--charcoal-card);
  border: 1px solid rgba(197, 165, 114, 0.2);
  border-radius: var(--radius-md);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.review-card.featured-verified {
  border-color: var(--bronze);
  background: linear-gradient(165deg, rgba(28, 35, 45, 0.96), rgba(18, 22, 28, 0.96));
}

.review-quote {
  font-size: 0.95rem;
  color: var(--travertine);
  line-height: 1.72;
  margin: 1rem 0 1.5rem;
  font-style: italic;
}

.review-author-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  padding-top: 1rem;
}

.review-author-name {
  font-weight: 600;
  color: var(--travertine);
  font-size: 0.9rem;
}

.review-source-pill {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #34D399;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.35);
  padding: 3px 8px;
  border-radius: 4px;
  white-space: nowrap;
}

/* 6 Core Values Strip */
.values-6-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1rem;
}

.value-card {
  background: rgba(21, 26, 33, 0.8);
  border: 1px solid rgba(197, 165, 114, 0.18);
  border-radius: var(--radius-md);
  padding: 1.4rem 1.2rem;
  text-align: left;
}

.value-index {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--bronze);
  letter-spacing: 0.14em;
  margin-bottom: 0.45rem;
}

.value-card h3 {
  font-family: var(--font-serif);
  font-size: 1.18rem;
  color: var(--travertine);
  margin-bottom: 0.4rem;
}

.value-card p {
  font-size: 0.8rem;
  color: var(--muted-stone);
  line-height: 1.5;
}

/* Plain-English Custom Home Design Walkthrough */
.plain-design-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
  margin-top: 2.25rem;
}

.plain-design-card {
  background: linear-gradient(165deg, rgba(23, 29, 38, 0.96), rgba(14, 18, 24, 0.98));
  border: 1px solid rgba(197, 165, 114, 0.28);
  border-radius: var(--radius-lg);
  padding: 2.15rem 1.9rem;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.42);
}

.plain-step-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bronze-light);
  background: rgba(197, 165, 114, 0.12);
  border: 1px solid rgba(197, 165, 114, 0.35);
  padding: 5px 12px;
  border-radius: 99px;
  margin-bottom: 1.1rem;
}

.plain-design-card h3 {
  font-family: var(--font-serif);
  font-size: 1.62rem;
  color: var(--travertine);
  line-height: 1.22;
  margin-bottom: 0.85rem;
}

.plain-contrast-box {
  margin-top: 1.25rem;
  padding-top: 1.1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: grid;
  gap: 0.65rem;
  font-size: 0.84rem;
}

.contrast-bad {
  color: #FCA5A5;
  background: rgba(184, 41, 47, 0.12);
  border-left: 3px solid #EF4444;
  padding: 8px 11px;
  border-radius: 4px;
}

.contrast-good {
  color: #A7F3D0;
  background: rgba(16, 185, 129, 0.11);
  border-left: 3px solid #10B981;
  padding: 8px 11px;
  border-radius: 4px;
}

/* Flagship Custom Estate Showcase Cards */
.flagship-estates-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  margin-bottom: 2.75rem;
}

.flagship-estate-card {
  background: var(--charcoal-card);
  border: 1px solid rgba(197, 165, 114, 0.32);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-luxury);
}

.flagship-main-photo {
  position: relative;
  height: 250px;
  overflow: hidden;
}

.flagship-main-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.flagship-estate-card:hover .flagship-main-photo img {
  transform: scale(1.04);
}

.flagship-sub-thumbs {
  display: grid;
  gap: 4px;
  background: #090B0E;
  padding: 4px;
  border-top: 1px solid rgba(197, 165, 114, 0.2);
  border-bottom: 1px solid rgba(197, 165, 114, 0.2);
}

.flagship-sub-thumbs.cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

.flagship-sub-thumbs.cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.flagship-sub-thumbs img {
  width: 100%;
  height: 68px;
  object-fit: cover;
  border-radius: 3px;
}

.flagship-estate-body {
  padding: 1.65rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.flagship-address-pill {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--bronze-light);
  margin-bottom: 0.45rem;
}

.flagship-estate-body h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--travertine);
  margin-bottom: 0.65rem;
  line-height: 1.24;
}

.flagship-estate-body p {
  font-size: 0.9rem;
  color: var(--muted-stone);
  line-height: 1.62;
  margin-bottom: 1.15rem;
}

.flagship-specs-row {
  margin-top: auto;
  padding-top: 0.95rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.flagship-spec-chip {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--warm-gray);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(197, 165, 114, 0.22);
  padding: 3px 8px;
  border-radius: 4px;
}

/* Intermediate Desktop Navigation Tightening (1081px - 1260px) */
@media (max-width: 1260px) and (min-width: 1081px) {
  .nav-container {
    padding: 0.85rem 1.25rem;
    gap: 0.75rem;
  }
  .brand-name {
    font-size: 1.12rem;
  }
  .nav-page-pill {
    font-size: 0.74rem;
    padding: 0.48rem 0.68rem;
  }
  .btn-sm {
    padding: 0.5rem 0.8rem;
    font-size: 0.72rem;
  }
}

/* Responsive Breakpoints: Tablet & Mobile Navigation + Orphan-Free Grids */
@media (max-width: 1120px) {
  .hero-grid,
  .consultation-grid,
  .video-walkthrough-banner {
    grid-template-columns: 1fr;
  }

  .sim-touchscreens-grid {
    grid-template-columns: 1fr;
  }

  .sequence-steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .sequence-steps > .seq-step:last-child:nth-child(odd) {
    grid-column: 1 / -1;
  }

  .iaq-metrics-4-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .values-6-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  /* Prevent 3-card & 9-card orphan cards on tablet widths */
  .tracks-grid,
  .pillars-grid,
  .reviews-grid,
  .tiers-grid,
  .flagship-estates-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .tracks-grid > :last-child:nth-child(odd),
  .pillars-grid > :last-child:nth-child(odd),
  .reviews-grid > :last-child:nth-child(odd),
  .tiers-grid > :last-child:nth-child(odd),
  .flagship-estates-grid > :last-child:nth-child(odd) {
    grid-column: 1 / -1;
  }

  .services-9-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .services-9-grid > :last-child:nth-child(odd) {
    grid-column: 1 / -1;
  }

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

  .telemetry-addon-callout {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 1080px) {
  .mobile-menu-toggle {
    display: inline-flex;
  }

  .primary-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(11, 13, 16, 0.98);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--bronze);
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.7);
    z-index: 999;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    padding: 1rem 1.5rem 1.35rem;
    gap: 0.55rem;
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-page-pill {
    width: 100%;
    min-height: 46px;
    padding: 0.75rem 1rem;
    font-size: 0.86rem;
    justify-content: space-between;
    background: rgba(244, 241, 234, 0.03);
    border-color: var(--slate-subtle);
  }

  .nav-mobile-cta {
    display: block;
    margin-top: 0.35rem;
  }

  .nav-cta-pill {
    background: linear-gradient(135deg, var(--bronze) 0%, var(--bronze-dark) 100%);
    color: var(--obsidian);
    font-weight: 700;
    border-color: var(--bronze);
    justify-content: center;
  }

  .nav-cta-pill:hover {
    color: var(--obsidian);
    background: linear-gradient(135deg, var(--bronze-light) 0%, var(--bronze) 100%);
  }
}

@media (max-width: 760px) {
  .top-credential-bar {
    padding: 0.5rem 1rem;
    font-size: 0.7rem;
  }

  .credential-right {
    display: none;
  }

  .nav-container {
    padding: 0.75rem 1rem;
  }

  .nav-walkthrough-btn {
    display: none;
  }

  .brand-logo {
    height: 38px;
  }

  .brand-name {
    font-size: 1.05rem;
  }

  .brand-sub {
    font-size: 0.58rem;
    letter-spacing: 0.12em;
  }

  .hero-section,
  .section-block {
    padding: 3.5rem 1.25rem;
  }

  .hero-metrics-strip,
  .plain-design-grid,
  .pillars-grid,
  .tiers-grid,
  .portfolio-grid,
  .video-mini-grid,
  .enclaves-grid,
  .sequence-steps,
  .iaq-metrics-4-grid,
  .form-row,
  .footer-grid,
  .tracks-grid,
  .services-9-grid,
  .reviews-grid,
  .values-6-grid,
  .flagship-estates-grid {
    grid-template-columns: 1fr;
  }

  .simulator-shell,
  .consult-form-card,
  .video-walkthrough-banner,
  .telemetry-addon-callout {
    padding: 1.4rem;
  }

  .sim-slider-wrap {
    width: 100%;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.5rem;
  }

  .sim-aqi-slider {
    width: 100%;
    order: 3;
  }

  .comparison-table {
    min-width: 0;
  }

  .comparison-table thead {
    display: none;
  }

  .comparison-table tbody,
  .comparison-table tr,
  .comparison-table td {
    display: block;
    width: 100%;
  }

  .comparison-table tr {
    border-bottom: 2px solid var(--slate-border);
    padding: 0.5rem 0;
  }

  .comparison-table td {
    padding: 0.75rem 1.15rem;
    border-bottom: none;
  }

  .comparison-table tbody td.col-reas {
    border-left: 3px solid var(--bronze);
  }

  .hero-telemetry-mini {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 440px) {
  .nav-phone-btn {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}