/* ============================================================
   SNTRICITY.COM — SITE STYLESHEET
   Design System: Dark Technical / Infrastructure Intelligence
   Fonts: DM Mono (code/labels), DM Sans (body), Syne (display)
   ============================================================ */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Syne:wght@600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;1,9..40,300&family=DM+Mono:wght@300;400;500&display=swap');

/* --- CSS Variables --- */
:root {
  /* Core palette */
  --bg-base:        #080c0f;
  --bg-surface:     #0d1318;
  --bg-raised:      #121a21;
  --bg-card:        #161f28;
  --bg-card-hover:  #1c2730;

  /* Borders */
  --border-subtle:  rgba(255,255,255,0.06);
  --border-default: rgba(255,255,255,0.10);
  --border-strong:  rgba(255,255,255,0.18);

  /* Text */
  --text-primary:   #e8edf2;
  --text-secondary: #8fa3b4;
  --text-muted:     #4d6375;
  --text-label:     #5c7a8e;

  /* Accent — electric teal */
  --accent:         #00c4a7;
  --accent-dim:     rgba(0, 196, 167, 0.12);
  --accent-glow:    rgba(0, 196, 167, 0.06);

  /* Signal — amber for warnings/highlights */
  --signal:         #e8a020;
  --signal-dim:     rgba(232, 160, 32, 0.10);

  /* Spacing scale */
  --sp-1: 0.25rem;
  --sp-2: 0.5rem;
  --sp-3: 0.75rem;
  --sp-4: 1rem;
  --sp-6: 1.5rem;
  --sp-8: 2rem;
  --sp-10: 2.5rem;
  --sp-12: 3rem;
  --sp-16: 4rem;
  --sp-20: 5rem;
  --sp-24: 6rem;
  --sp-32: 8rem;

  /* Typography */
  --font-display: 'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;
  --font-mono:    'DM Mono', monospace;

  /* Radius */
  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  12px;
  --radius-xl:  20px;

  /* Transitions */
  --t-fast:   150ms ease;
  --t-base:   250ms ease;
  --t-slow:   400ms ease;

  /* Layout */
  --content-max: 1200px;
  --content-text: 760px;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--t-fast), opacity var(--t-fast);
}

a:hover {
  color: #2dd9bf;
}

ul, ol {
  list-style: none;
}

/* --- Typography Scale --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.6rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
h4 { font-size: 1.15rem; font-weight: 600; }

p {
  color: var(--text-secondary);
  max-width: 72ch;
  font-weight: 300;
}

p + p {
  margin-top: var(--sp-4);
}

strong {
  color: var(--text-primary);
  font-weight: 500;
}

/* --- Layout Utilities --- */
.container {
  width: 100%;
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--sp-6);
}

.section {
  padding-block: var(--sp-24);
}

.section--sm {
  padding-block: var(--sp-16);
}

.section--lg {
  padding-block: var(--sp-32);
}

/* --- NAVIGATION --- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8, 12, 15, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
}

.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--sp-6);
}

.site-nav__logo {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  text-decoration: none;
}

.site-nav__logo-mark {
  width: 32px;
  height: 32px;
  background: var(--accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.site-nav__logo-mark span {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: #000;
  letter-spacing: 0;
}

.site-nav__logo-text {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: var(--sp-8);
}

.site-nav__links a {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: 0.01em;
  transition: color var(--t-fast);
}

.site-nav__links a:hover,
.site-nav__links a.active {
  color: var(--text-primary);
}

.site-nav__cta {
  font-family: var(--font-mono);
  font-size: 0.8rem !important;
  font-weight: 500 !important;
  color: var(--accent) !important;
  border: 1px solid rgba(0, 196, 167, 0.35);
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--radius-sm);
  transition: background var(--t-fast), border-color var(--t-fast) !important;
}

.site-nav__cta:hover {
  background: var(--accent-dim) !important;
  border-color: var(--accent) !important;
  color: var(--accent) !important;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--sp-2);
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  transition: transform var(--t-base), opacity var(--t-base);
}

/* --- FOOTER --- */
.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  padding-block: var(--sp-16) var(--sp-8);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--sp-12);
  margin-bottom: var(--sp-12);
}

.site-footer__brand p {
  font-size: 0.875rem;
  margin-top: var(--sp-4);
  max-width: 30ch;
}

.site-footer__col h4 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--sp-4);
}

.site-footer__col ul {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.site-footer__col a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--t-fast);
}

.site-footer__col a:hover {
  color: var(--text-primary);
}

.site-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--sp-8);
  border-top: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  gap: var(--sp-4);
}

.site-footer__bottom p {
  font-size: 0.8rem;
  color: var(--text-muted);
  max-width: none;
}

.site-footer__entity {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  padding: var(--sp-2) var(--sp-3);
  background: var(--bg-raised);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
}

/* --- HERO --- */
.hero {
  padding-block: var(--sp-32) var(--sp-24);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(0,196,167,0.07) 0%, transparent 65%),
    radial-gradient(ellipse 50% 40% at 85% 50%, rgba(0,196,167,0.04) 0%, transparent 60%);
  pointer-events: none;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--sp-6);
}

.hero__eyebrow::before {
  content: '';
  display: block;
  width: 20px;
  height: 1px;
  background: var(--accent);
}

.hero h1 {
  margin-bottom: var(--sp-6);
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero__lead {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 58ch;
  margin-bottom: var(--sp-10);
  font-weight: 300;
  line-height: 1.75;
}

.hero__actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--sp-4);
}

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  padding: var(--sp-3) var(--sp-6);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--t-base);
  text-decoration: none;
  letter-spacing: 0.01em;
}

.btn--primary {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
}

.btn--primary:hover {
  background: #2dd9bf;
  border-color: #2dd9bf;
  color: #000;
  transform: translateY(-1px);
}

.btn--secondary {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.btn--secondary:hover {
  background: var(--bg-raised);
  border-color: var(--border-strong);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--accent);
  border-color: rgba(0, 196, 167, 0.3);
}

.btn--ghost:hover {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

.btn--arrow::after {
  content: '→';
  font-family: var(--font-body);
  font-size: 1em;
  transition: transform var(--t-fast);
}

.btn--arrow:hover::after {
  transform: translateX(3px);
}

/* --- SECTION LABELS --- */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-label);
  margin-bottom: var(--sp-6);
}

.section-label::before {
  content: '';
  display: block;
  width: 16px;
  height: 1px;
  background: var(--text-label);
}

/* --- CARDS --- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--sp-8);
  transition: border-color var(--t-base), background var(--t-base), transform var(--t-base);
}

.card:hover {
  border-color: var(--border-default);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.card__icon {
  width: 40px;
  height: 40px;
  margin-bottom: var(--sp-5);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-raised);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

.card h3 {
  font-size: 1.05rem;
  margin-bottom: var(--sp-3);
}

.card p {
  font-size: 0.9rem;
  line-height: 1.65;
}

/* --- GRID LAYOUTS --- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-6);
}

/* --- FEATURED PROPERTY BLOCK (EdgeAIStack) --- */
.property-featured {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: var(--sp-12);
  position: relative;
  overflow: hidden;
}

.property-featured::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.property-featured__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(0,196,167,0.25);
  border-radius: var(--radius-sm);
  padding: var(--sp-1) var(--sp-3);
  margin-bottom: var(--sp-6);
}

.property-featured__badge::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.property-featured__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-12);
  align-items: start;
}

.property-featured h2 {
  margin-bottom: var(--sp-4);
}

.property-featured p {
  margin-bottom: var(--sp-6);
}

.property-featured__tools {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-3);
}

.tool-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--sp-4);
  font-size: 0.85rem;
}

.tool-item__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--sp-1);
}

.tool-item__name {
  color: var(--text-primary);
  font-weight: 400;
  font-size: 0.875rem;
}

/* --- LAYER DIAGRAM --- */
.layer-stack {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.layer-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  border-bottom: 1px solid var(--border-subtle);
}

.layer-item:last-child {
  border-bottom: none;
}

.layer-item__num {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-raised);
  border-right: 1px solid var(--border-subtle);
  padding: var(--sp-8);
}

.layer-item__num span {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.layer-item__content {
  padding: var(--sp-8);
}

.layer-item__content h4 {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--sp-2);
}

.layer-item__content p {
  font-size: 0.9rem;
  max-width: 60ch;
}

/* --- STAT BLOCKS --- */
.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-1);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-block: var(--sp-10);
}

.stat-item {
  padding: var(--sp-8) var(--sp-6);
  text-align: center;
  border-right: 1px solid var(--border-subtle);
}

.stat-item:last-child {
  border-right: none;
}

.stat-item__value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: var(--sp-2);
}

.stat-item__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* --- TAG LISTS --- */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-4);
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-secondary);
  background: var(--bg-raised);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: var(--sp-1) var(--sp-3);
  letter-spacing: 0.04em;
}

.tag--accent {
  color: var(--accent);
  background: var(--accent-dim);
  border-color: rgba(0,196,167,0.2);
}

/* --- PAGE HEADER --- */
.page-header {
  padding-block: var(--sp-20) var(--sp-16);
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: var(--sp-16);
  position: relative;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 80% at 30% 50%, rgba(0,196,167,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.page-header__breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: var(--sp-6);
}

.page-header__breadcrumb a {
  color: var(--text-muted);
  transition: color var(--t-fast);
}

.page-header__breadcrumb a:hover {
  color: var(--accent);
}

.page-header__breadcrumb span {
  color: var(--text-muted);
  opacity: 0.4;
}

.page-header h1 {
  margin-bottom: var(--sp-5);
}

.page-header__lead {
  font-size: 1.1rem;
  max-width: 60ch;
  color: var(--text-secondary);
}

/* --- DIVIDERS --- */
.divider {
  height: 1px;
  background: var(--border-subtle);
  margin-block: var(--sp-16);
}

/* --- CTA BLOCK --- */
.cta-block {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: var(--sp-16) var(--sp-12);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-block::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 100% at 50% 100%, rgba(0,196,167,0.05) 0%, transparent 70%);
  pointer-events: none;
}

.cta-block h2 {
  margin-bottom: var(--sp-4);
}

.cta-block p {
  margin-inline: auto;
  margin-bottom: var(--sp-8);
  font-size: 1.05rem;
}

.cta-block__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-4);
  flex-wrap: wrap;
}

/* --- INLINE LINK HIGHLIGHT --- */
.link-highlight {
  color: var(--accent);
  border-bottom: 1px solid rgba(0,196,167,0.35);
  padding-bottom: 1px;
  transition: border-color var(--t-fast);
}

.link-highlight:hover {
  border-color: var(--accent);
}

/* --- CONTACT FORM --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--sp-16);
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--sp-8);
}

.contact-method {
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
}

.contact-method__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.contact-method a,
.contact-method span {
  color: var(--text-primary);
  font-size: 0.95rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  margin-bottom: var(--sp-5);
}

.form-group label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.925rem;
  font-weight: 300;
  padding: var(--sp-3) var(--sp-4);
  width: 100%;
  transition: border-color var(--t-fast);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
}

.form-group textarea {
  min-height: 130px;
  resize: vertical;
  line-height: 1.65;
}

.form-group select option {
  background: var(--bg-card);
}

/* --- PROSE SECTIONS --- */
.prose {
  max-width: var(--content-text);
}

.prose h2 {
  margin-top: var(--sp-12);
  margin-bottom: var(--sp-4);
}

.prose h3 {
  margin-top: var(--sp-8);
  margin-bottom: var(--sp-3);
  color: var(--text-primary);
  font-size: 1.15rem;
}

.prose p {
  margin-bottom: var(--sp-4);
}

.prose ul {
  margin-block: var(--sp-4);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.prose li {
  font-size: 0.95rem;
  color: var(--text-secondary);
  padding-left: var(--sp-5);
  position: relative;
}

.prose li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.8em;
}

/* --- HIGHLIGHT BOX --- */
.highlight-box {
  background: var(--accent-glow);
  border: 1px solid rgba(0,196,167,0.2);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--sp-5) var(--sp-6);
  margin-block: var(--sp-8);
}

.highlight-box p {
  font-size: 0.95rem;
  color: var(--text-primary);
  max-width: none;
  font-style: italic;
}

/* --- PROPERTY EXPANSION GRID --- */
.expansion-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.expansion-item {
  background: var(--bg-card);
  padding: var(--sp-8) var(--sp-6);
  transition: background var(--t-base);
}

.expansion-item:hover {
  background: var(--bg-card-hover);
}

.expansion-item__status {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--sp-4);
  padding: var(--sp-1) var(--sp-2);
  border-radius: var(--radius-sm);
  display: inline-block;
}

.status--live {
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(0,196,167,0.25);
}

.status--planned {
  color: var(--text-muted);
  background: var(--bg-raised);
  border: 1px solid var(--border-subtle);
}

.expansion-item h4 {
  font-size: 0.95rem;
  margin-bottom: var(--sp-2);
}

.expansion-item p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* --- RESPONSIVE --- */
@media (max-width: 1024px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-8);
  }

  .property-featured__grid {
    grid-template-columns: 1fr;
    gap: var(--sp-8);
  }

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

@media (max-width: 768px) {
  .container {
    padding-inline: var(--sp-4);
  }

  .section {
    padding-block: var(--sp-16);
  }

  .section--lg {
    padding-block: var(--sp-20);
  }

  .hero {
    padding-block: var(--sp-20) var(--sp-16);
  }

  .grid-3 {
    grid-template-columns: 1fr;
    gap: var(--sp-4);
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

  .stat-row {
    grid-template-columns: 1fr;
  }

  .stat-item {
    border-right: none;
    border-bottom: 1px solid var(--border-subtle);
  }

  .stat-item:last-child {
    border-bottom: none;
  }

  .site-nav__links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-base);
    border-bottom: 1px solid var(--border-subtle);
    padding: var(--sp-6);
    gap: var(--sp-5);
  }

  .site-nav__links.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: relative;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .property-featured {
    padding: var(--sp-8) var(--sp-6);
  }

  .property-featured__tools {
    grid-template-columns: 1fr;
  }

  .expansion-grid {
    grid-template-columns: 1fr 1fr;
  }

  .layer-item {
    grid-template-columns: 1fr;
  }

  .layer-item__num {
    border-right: none;
    border-bottom: 1px solid var(--border-subtle);
    padding: var(--sp-4);
    justify-content: flex-start;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: var(--sp-6);
  }

  .cta-block {
    padding: var(--sp-10) var(--sp-6);
  }

  .page-header {
    padding-block: var(--sp-12) var(--sp-10);
  }
}

@media (max-width: 480px) {
  .expansion-grid {
    grid-template-columns: 1fr;
  }

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

  .btn {
    width: 100%;
    justify-content: center;
  }
}

/* --- UTILITY --- */
.text-accent { color: var(--accent); }
.text-muted  { color: var(--text-muted); }
.text-mono   { font-family: var(--font-mono); }
.mt-8        { margin-top: var(--sp-8); }
.mt-12       { margin-top: var(--sp-12); }
.mb-4        { margin-bottom: var(--sp-4); }
.mb-8        { margin-bottom: var(--sp-8); }

/* --- SCROLL FADE IN --- */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-up {
  animation: fadeUp 0.55s ease both;
}

.fade-up-d1 { animation-delay: 0.1s; }
.fade-up-d2 { animation-delay: 0.2s; }
.fade-up-d3 { animation-delay: 0.3s; }
.fade-up-d4 { animation-delay: 0.45s; }