/* ==========================================================================
   ZENTRI AXIOM PVT. LTD. - OFFICIAL ARCHITECTURAL & BIM DESIGN SYSTEM
   Theme: Precision Architectural Brutalism & High-Tech Digital Engineering
   ========================================================================== */

/* ── Typography & Web Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&family=Outfit:wght@400;500;600;700;800&display=swap');

/* ── Design Tokens & CSS Variables ── */
:root {
  /* Brand Palettes */
  --bg-canvas: #090c12;
  --bg-surface: #101522;
  --bg-surface-elevated: #161e30;
  --bg-surface-overlay: rgba(16, 21, 34, 0.85);
  --bg-glass: rgba(16, 21, 34, 0.72);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverted: #090c12;

  --accent-gold: #d4af37;
  --accent-gold-hover: #e6c555;
  --accent-gold-subtle: rgba(212, 175, 55, 0.12);
  --accent-gold-border: rgba(212, 175, 55, 0.35);

  --accent-cyan: #0ea5e9;
  --accent-cyan-subtle: rgba(14, 165, 233, 0.12);
  
  --accent-emerald: #10b981;
  --accent-blue: #3b82f6;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.16);
  --border-focus: var(--accent-gold);

  --grid-line: rgba(255, 255, 255, 0.035);
  --grid-crosshair: rgba(212, 175, 55, 0.25);

  /* Elevation & Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.65);
  --shadow-glow: 0 0 24px rgba(212, 175, 55, 0.18);

  /* Radii */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  /* Typography */
  --font-display: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 280ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-bounce: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Layout */
  --header-height: 80px;
  --container-max: 1360px;
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-canvas: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f1f5f9;
  --bg-surface-overlay: rgba(255, 255, 255, 0.9);
  --bg-glass: rgba(255, 255, 255, 0.8);
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverted: #ffffff;

  --accent-gold: #b38808;
  --accent-gold-hover: #967004;
  --accent-gold-subtle: rgba(179, 136, 8, 0.08);
  --accent-gold-border: rgba(179, 136, 8, 0.3);

  --border-subtle: rgba(15, 23, 42, 0.08);
  --border-medium: rgba(15, 23, 42, 0.16);

  --grid-line: rgba(15, 23, 42, 0.035);
  --grid-crosshair: rgba(179, 136, 8, 0.2);

  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.12);
}

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

html {
  font-family: var(--font-body);
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  transition: background-color var(--transition-smooth), color var(--transition-smooth);
}

/* Blueprint Grid Background */
.blueprint-grid {
  background-size: 40px 40px;
  background-image: 
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-position: center top;
}

/* Accessible Hidden */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus Outline */
:focus-visible {
  outline: 2px solid var(--accent-gold);
  outline-offset: 3px;
}

/* Links & Buttons */
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ── Layout Container ── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1rem, 3vw, 2.5rem);
  padding-right: clamp(1rem, 3vw, 2.5rem);
}

/* ── Header & Navigation ── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 1000;
  transition: background-color var(--transition-smooth), border-color var(--transition-smooth);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo-img {
  height: 48px;
  width: auto;
  object-fit: contain;
}

.brand-logo-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.1;
}

.brand-name span {
  color: var(--accent-gold);
}

.brand-tagline {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Desktop Nav */
.main-nav {
  display: none;
}

@media (min-width: 1024px) {
  .main-nav {
    display: flex;
    align-items: center;
    gap: 28px;
  }
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gold);
  transition: width var(--transition-fast);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Theme Toggle Button */
.theme-toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
  color: var(--accent-gold);
  border-color: var(--accent-gold-border);
}

/* Action Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-gold);
  color: #000000;
  box-shadow: 0 2px 10px rgba(212, 175, 55, 0.3);
}

.btn-primary:hover {
  background: var(--accent-gold-hover);
  box-shadow: 0 4px 18px rgba(212, 175, 55, 0.45);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
}

.btn-secondary:hover {
  background: var(--bg-surface);
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
}

.btn-outline:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.8125rem;
}

.btn-lg {
  padding: 14px 32px;
  font-size: 1.05rem;
}

/* Mobile Hamburger */
.mobile-nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  color: var(--text-primary);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
}

@media (min-width: 1024px) {
  .mobile-nav-toggle {
    display: none;
  }
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-canvas);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-smooth);
  z-index: 999;
  border-bottom: 1px solid var(--border-subtle);
  overflow-y: auto;
}

.mobile-drawer.open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.mobile-nav-link {
  font-size: 1.15rem;
  font-weight: 600;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.mobile-nav-link:hover {
  color: var(--accent-gold);
}

/* ── Section General ── */
section {
  padding: clamp(60px, 8vw, 110px) 0;
  position: relative;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-gold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: var(--accent-gold-subtle);
  border: 1px solid var(--accent-gold-border);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

.section-tag::before {
  content: '✦';
  font-size: 0.75rem;
}

.section-heading-wrap {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 56px auto;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.8vw, 3.25rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}

.section-subtitle {
  font-size: clamp(1rem, 1.3vw, 1.1875rem);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ── Hero Section ── */
.hero-section {
  padding-top: calc(var(--header-height) + clamp(40px, 6vw, 80px));
  padding-bottom: clamp(60px, 8vw, 100px);
  min-height: 90vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
  opacity: 0.28;
  filter: contrast(1.15) brightness(0.85);
  pointer-events: none;
}

.hero-backdrop img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-backdrop::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(9, 12, 18, 0.7) 0%,
    rgba(9, 12, 18, 0.4) 40%,
    rgba(9, 12, 18, 0.95) 100%
  );
}

[data-theme="light"] .hero-backdrop::after {
  background: linear-gradient(
    to bottom,
    rgba(248, 250, 252, 0.8) 0%,
    rgba(248, 250, 252, 0.6) 40%,
    rgba(248, 250, 252, 0.98) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 880px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(16, 21, 34, 0.8);
  border: 1px solid var(--accent-gold-border);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 10px var(--accent-emerald);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

.hero-badge-text {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5.5vw, 4.5rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, #ffffff 30%, var(--accent-gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-theme="light"] .hero-title .gradient-text {
  background: linear-gradient(135deg, #0f172a 40%, var(--accent-gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: clamp(1.1rem, 1.5vw, 1.3rem);
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 36px;
  max-width: 720px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-specs-bar {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  padding: 20px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  backdrop-filter: blur(12px);
}

@media (min-width: 640px) {
  .hero-specs-bar {
    grid-template-columns: repeat(4, 1fr);
  }
}

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

.spec-value {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent-gold);
  line-height: 1.1;
}

.spec-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ── Interactive Scan-to-BIM Comparison Section ── */
.scan-comparison-wrap {
  position: relative;
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-medium);
  box-shadow: var(--shadow-lg);
  user-select: none;
  background: #000;
  aspect-ratio: 16 / 9;
}

.comparison-image-container {
  position: relative;
  width: 100%;
  height: 100%;
}

.comparison-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.comparison-layer img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.comparison-layer.top-layer {
  width: 50%;
  z-index: 2;
  border-right: 2px solid var(--accent-gold);
}

.comparison-layer.top-layer img {
  width: 1080px;
  max-width: none;
  height: 100%;
}

/* Splitter Handle */
.comparison-slider-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  background: var(--accent-gold);
  z-index: 3;
  cursor: ew-resize;
  transform: translateX(-50%);
}

.handle-knob {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #000000;
  border: 2px solid var(--accent-gold);
  color: var(--accent-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 16px rgba(212, 175, 55, 0.4);
}

.handle-knob svg {
  width: 20px;
  height: 20px;
}

.comparison-badge {
  position: absolute;
  bottom: 20px;
  padding: 6px 14px;
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  z-index: 4;
  backdrop-filter: blur(8px);
}

.comparison-badge.left {
  left: 20px;
  background: rgba(14, 165, 233, 0.85);
  color: #ffffff;
}

.comparison-badge.right {
  right: 20px;
  background: rgba(212, 175, 55, 0.85);
  color: #000000;
}

.comparison-caption {
  text-align: center;
  margin-top: 18px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.comparison-caption strong {
  color: var(--text-primary);
}

/* ── Interactive LOD Matrix Section ── */
.lod-matrix-wrap {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.lod-tabs-nav {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 12px;
  scrollbar-width: thin;
}

.lod-tab-btn {
  flex: 1;
  min-width: 140px;
  padding: 16px 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  text-align: left;
  transition: all var(--transition-fast);
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.lod-tab-btn:hover {
  border-color: var(--border-medium);
  background: var(--bg-surface-elevated);
}

.lod-tab-btn.active {
  background: var(--accent-gold-subtle);
  border-color: var(--accent-gold);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

.lod-tab-level {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--accent-gold);
}

.lod-tab-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: inherit;
}

.lod-detail-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: clamp(24px, 4vw, 40px);
}

@media (min-width: 900px) {
  .lod-detail-card {
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
  }
}

.lod-info-content h3 {
  font-family: var(--font-display);
  font-size: 1.85rem;
  margin-bottom: 12px;
}

.lod-info-content p {
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.lod-feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.lod-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.lod-feature-list li svg {
  width: 18px;
  height: 18px;
  color: var(--accent-gold);
  flex-shrink: 0;
  margin-top: 3px;
}

.lod-project-showcase {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 24px;
}

.lod-project-showcase h4 {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  text-transform: uppercase;
  color: var(--accent-gold);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.lod-project-showcase .proj-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.lod-project-showcase .proj-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* ── Services Section ── */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1100px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-gold-border);
  box-shadow: var(--shadow-md);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon-box {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: var(--accent-gold-subtle);
  border: 1px solid var(--accent-gold-border);
  color: var(--accent-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.service-icon-box svg {
  width: 26px;
  height: 26px;
}

.service-card-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.service-card-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.service-card-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px solid var(--border-subtle);
  padding-top: 16px;
}

.service-card-bullets li {
  font-size: 0.875rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.service-card-bullets li::before {
  content: '▸';
  color: var(--accent-gold);
}

/* ── Filterable Portfolio & Projects Section ── */
.portfolio-filter-bar {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
}

.filter-btn {
  font-size: 0.875rem;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.filter-btn.active {
  background: var(--accent-gold);
  color: #000000;
  border-color: var(--accent-gold);
}

.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

@media (min-width: 680px) {
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1080px) {
  .projects-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.project-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-smooth);
  cursor: pointer;
}

.project-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-gold-border);
  box-shadow: var(--shadow-lg);
}

.project-thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #000;
}

.project-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.project-card:hover .project-thumb img {
  transform: scale(1.06);
}

.project-badges {
  position: absolute;
  top: 12px;
  left: 12px;
  display: flex;
  gap: 6px;
  z-index: 2;
}

.badge-tag {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: var(--radius-xs);
  text-transform: uppercase;
  background: rgba(16, 21, 34, 0.85);
  backdrop-filter: blur(6px);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
}

.badge-tag.highlight {
  background: var(--accent-gold);
  color: #000;
  border-color: var(--accent-gold);
}

.project-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-location {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-gold);
  margin-bottom: 6px;
}

.project-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 10px;
}

.project-snippet {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 18px;
  flex-grow: 1;
}

.project-meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-subtle);
  padding-top: 14px;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.project-meta-item strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* ── Quality Workflow Section ── */
.workflow-timeline {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  position: relative;
}

@media (min-width: 900px) {
  .workflow-timeline {
    grid-template-columns: repeat(5, 1fr);
  }
}

.workflow-step {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  position: relative;
  transition: all var(--transition-fast);
}

.workflow-step:hover {
  border-color: var(--accent-gold);
  transform: translateY(-2px);
}

.workflow-num {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-gold);
  margin-bottom: 12px;
}

.workflow-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.workflow-desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ── Tech Stack & Software Inventory ── */
.tech-stack-wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 32px;
  padding: 32px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

.tech-badge-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
}

.tech-badge-item svg {
  width: 22px;
  height: 22px;
  color: var(--accent-gold);
}

/* ── Interactive RFP Scope & Timeline Calculator ── */
.estimator-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 5vw, 48px);
  box-shadow: var(--shadow-lg);
}

.estimator-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

@media (min-width: 960px) {
  .estimator-grid {
    grid-template-columns: 1.4fr 1fr;
  }
}

.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9375rem;
  transition: border-color var(--transition-fast);
}

.form-control:focus {
  border-color: var(--accent-gold);
}

.services-checkbox-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

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

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.checkbox-label:hover {
  border-color: var(--accent-gold-border);
}

.checkbox-label input[type="checkbox"] {
  accent-color: var(--accent-gold);
}

/* Estimator Live Output Box */
.estimator-results-box {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--accent-gold-border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.results-header {
  margin-bottom: 24px;
}

.results-header h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin-bottom: 6px;
}

.results-header p {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.metric-highlight-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.metric-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 16px;
  border-radius: var(--radius-sm);
}

.metric-box .metric-num {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent-gold);
}

.metric-box .metric-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ── Policy Governance Hub Section ── */
.policies-cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 640px) {
  .policies-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .policies-cards-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.policy-hub-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-fast);
}

.policy-hub-card:hover {
  border-color: var(--accent-gold);
  transform: translateY(-2px);
}

.policy-badge {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--accent-gold);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.policy-hub-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.policy-hub-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 16px;
  flex-grow: 1;
}

/* ── Contact Section ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

@media (min-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr 1.2fr;
  }
}

.contact-info-panel {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--accent-gold-subtle);
  border: 1px solid var(--accent-gold-border);
  color: var(--accent-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-icon-box svg {
  width: 22px;
  height: 22px;
}

.contact-details h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.contact-details p, .contact-details a {
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.contact-details a:hover {
  color: var(--accent-gold);
}

.contact-form-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: clamp(24px, 4vw, 40px);
}

/* ── Footer ── */
.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 30px 0;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

@media (min-width: 600px) {
  .footer-top-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-top-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer-brand-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-top: 16px;
  max-width: 360px;
}

.footer-col-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links-list a {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.footer-links-list a:hover {
  color: var(--accent-gold);
}

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
  }
}

/* ── Accessible Native Dialog Modals ── */
dialog {
  border: none;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  color: var(--text-primary);
  max-width: 800px;
  width: calc(100% - 32px);
  margin: auto;
  padding: 0;
  box-shadow: var(--shadow-lg);
  outline: none;
}

dialog::backdrop {
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
}

.modal-header {
  padding: 24px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
}

.modal-close-btn {
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xs);
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
}

.modal-body {
  padding: 24px;
  max-height: 70vh;
  overflow-y: auto;
  line-height: 1.6;
}

.modal-body img {
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
}

.modal-specs-table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0;
  font-size: 0.875rem;
}

.modal-specs-table th, .modal-specs-table td {
  padding: 10px 14px;
  border: 1px solid var(--border-subtle);
  text-align: left;
}

.modal-specs-table th {
  background: var(--bg-surface-elevated);
  color: var(--accent-gold);
  font-family: var(--font-mono);
  font-weight: 600;
}

.modal-footer {
  padding: 18px 24px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}