/* ==========================================================================
   VibePackr & BT-OS Official Enterprise Landing Page Styles
   Theme: Deep Dark Cybernetic Enterprise Governance
   ========================================================================== */

:root {
  --bg-primary: #070b14;
  --bg-secondary: #0c1427;
  --bg-tertiary: #131f3b;
  --bg-card: rgba(15, 23, 42, 0.75);
  --bg-card-hover: rgba(22, 34, 62, 0.85);
  --bg-glass: rgba(12, 20, 39, 0.8);

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-active: rgba(99, 102, 241, 0.4);
  --border-glow: rgba(59, 130, 246, 0.5);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-accent: #38bdf8;

  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
  --accent-indigo: #6366f1;
  --accent-violet: #8b5cf6;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;

  --gradient-brand: linear-gradient(135deg, #38bdf8 0%, #6366f1 50%, #a855f7 100%);
  --gradient-hero: radial-gradient(circle at 50% 10%, rgba(99, 102, 241, 0.18) 0%, rgba(6, 182, 212, 0.08) 40%, rgba(7, 11, 20, 0) 70%);
  --gradient-glow: radial-gradient(circle, rgba(56, 189, 248, 0.15) 0%, rgba(0, 0, 0, 0) 70%);
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.2);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --font-sans: -apple-system, BlinkMacSystemFont, "Pretendard", "Inter", "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Cascadia Code", "Roboto Mono", Consolas, monospace;
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 20% 15%, rgba(59, 130, 246, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 80% 45%, rgba(139, 92, 246, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 50% 85%, rgba(6, 182, 212, 0.06) 0%, transparent 50%);
  background-attachment: fixed;
}

/* Background grid pattern */
.bg-grid {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-size: 50px 50px;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  pointer-events: none;
  z-index: 0;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* --------------------------------------------------------------------------
   Navigation Bar
   -------------------------------------------------------------------------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: rgba(7, 11, 20, 0.85);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.3s ease;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  max-width: 1360px;
  padding: 0 28px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
  flex-shrink: 0;
  white-space: nowrap;
}

.nav-logo-icon {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: linear-gradient(135deg, #1e3a8a 0%, #312e81 100%);
  border: 1px solid rgba(99, 102, 241, 0.4);
  box-shadow: 0 0 16px rgba(59, 130, 246, 0.35);
  flex-shrink: 0;
}

.nav-brand-text {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  white-space: nowrap;
  line-height: 1;
}

.nav-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  font-size: 0.68rem;
  font-weight: 600;
  font-family: var(--font-mono);
  background: rgba(99, 102, 241, 0.14);
  color: #a5b4fc;
  border: 1px solid rgba(99, 102, 241, 0.28);
  border-radius: var(--radius-full);
  white-space: nowrap;
  letter-spacing: 0.02em;
  line-height: 1.2;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  white-space: nowrap;
  border-radius: 6px;
  transition: all 0.2s ease;
  line-height: 1.2;
}

.nav-link:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.06);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  white-space: nowrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s ease;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #2563eb 0%, #4f46e5 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #1d4ed8 0%, #4338ca 100%);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.5);
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.8rem;
}

.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  padding: 160px 0 100px;
  overflow: hidden;
  background: var(--gradient-hero);
}

.hero-content {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 500;
  color: #93c5fd;
  margin-bottom: 28px;
  backdrop-filter: blur(8px);
}

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

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.hero-title {
  font-size: clamp(2.5rem, 5.5vw, 4.25rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 24px;
}

.gradient-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 36px;
}

.hero-subtitle strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* Axiom badges */
.axiom-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
}

.axiom-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  font-weight: 600;
  font-family: var(--font-mono);
  color: #e2e8f0;
  transition: all 0.2s ease;
}

.axiom-chip:hover {
  border-color: var(--accent-cyan);
  background: rgba(30, 41, 59, 0.9);
  transform: translateY(-2px);
}

.axiom-symbol {
  color: var(--accent-rose);
  font-weight: 800;
}

.hero-cta-group {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

/* Hero Quick Stats */
.hero-specs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  text-align: left;
  margin-top: 20px;
}

.spec-card {
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  backdrop-filter: blur(10px);
  transition: all 0.25s ease;
}

.spec-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-active);
  transform: translateY(-3px);
}

.spec-icon {
  font-size: 1.5rem;
  margin-bottom: 12px;
  display: inline-block;
}

.spec-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.spec-desc {
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   Section Common Styles
   -------------------------------------------------------------------------- */
.section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 60px;
}

.section-badge {
  display: inline-block;
  padding: 4px 12px;
  font-size: 0.78rem;
  font-weight: 700;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(59, 130, 246, 0.12);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(1.85rem, 3.5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.25;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* --------------------------------------------------------------------------
   Pillar Card Layout (Image + Content)
   -------------------------------------------------------------------------- */
.pillar-card {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 48px;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 40px;
  margin-bottom: 60px;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
}

.pillar-card:hover {
  border-color: var(--border-active);
  box-shadow: var(--shadow-glow);
}

.pillar-card.reverse {
  grid-template-columns: 1fr 1.15fr;
}

.pillar-card.reverse .pillar-visual {
  order: 2;
}

.pillar-card.reverse .pillar-info {
  order: 1;
}

/* Infographic Preview Frame */
.pillar-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #000;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.6);
  cursor: pointer;
  group: hover;
}

.pillar-visual img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.4s ease, filter 0.3s ease;
}

.pillar-visual:hover img {
  transform: scale(1.02);
  filter: brightness(1.05);
}

.visual-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(7, 11, 20, 0.4);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  opacity: 0;
  transition: opacity 0.3s ease;
  backdrop-filter: blur(2px);
}

.pillar-visual:hover .visual-overlay {
  opacity: 1;
}

.visual-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: rgba(30, 41, 59, 0.9);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  transform: translateY(10px);
  transition: transform 0.3s ease;
}

.pillar-visual:hover .visual-badge {
  transform: translateY(0);
}

/* Pillar Information */
.pillar-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.pillar-num {
  font-size: 0.8rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.pillar-heading {
  font-size: clamp(1.5rem, 2.5vw, 2.1rem);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.pillar-desc {
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.pillar-features {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 10px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.feature-bullet {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid var(--accent-indigo);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 3px;
  color: #818cf8;
  font-size: 0.75rem;
}

.feature-text {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

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

/* --------------------------------------------------------------------------
   Interactive Governed Work Lifecycle
   -------------------------------------------------------------------------- */
.lifecycle-stepper {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
  margin-bottom: 30px;
}

.lifecycle-step {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 12px;
  text-align: center;
  cursor: pointer;
  transition: all 0.25s ease;
  position: relative;
}

.lifecycle-step.active, .lifecycle-step:hover {
  background: var(--bg-tertiary);
  border-color: var(--accent-blue);
  box-shadow: 0 4px 20px rgba(59, 130, 246, 0.25);
  transform: translateY(-3px);
}

.step-number {
  font-size: 0.75rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  margin-bottom: 4px;
}

.step-label {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-primary);
}

.lifecycle-detail-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  backdrop-filter: blur(8px);
}

.lifecycle-detail-content h4 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: #38bdf8;
}

.lifecycle-detail-content p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   Domains Grid
   -------------------------------------------------------------------------- */
.domains-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.domain-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all 0.25s ease;
}

.domain-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-active);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.domain-icon {
  font-size: 2rem;
  margin-bottom: 16px;
  display: inline-block;
}

.domain-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.domain-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* --------------------------------------------------------------------------
   Gallery Section
   -------------------------------------------------------------------------- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.gallery-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s ease;
}

.gallery-card:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(6, 182, 212, 0.2);
}

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

.gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  transition: transform 0.4s ease;
}

.gallery-card:hover .gallery-thumb img {
  transform: scale(1.05);
}

.gallery-meta {
  padding: 20px;
}

.gallery-tag {
  font-size: 0.75rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--accent-indigo);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.gallery-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.gallery-desc {
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

/* --------------------------------------------------------------------------
   CTA Section
   -------------------------------------------------------------------------- */
.cta-box {
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.4) 0%, rgba(49, 46, 129, 0.4) 100%);
  border: 1px solid rgba(99, 102, 241, 0.4);
  border-radius: var(--radius-xl);
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 60px rgba(99, 102, 241, 0.25);
}

.cta-box::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 60%);
  pointer-events: none;
}

.cta-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.cta-desc {
  font-size: 1.1rem;
  color: #cbd5e1;
  max-width: 680px;
  margin: 0 auto 36px;
  line-height: 1.6;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  border-top: 1px solid var(--border-subtle);
  background: #04070e;
  padding: 80px 0 40px;
  margin-top: 60px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 60px;
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  margin-bottom: 20px;
}

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

.footer-links a {
  font-size: 0.88rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   Lightbox Modal
   -------------------------------------------------------------------------- */
.lightbox-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1000;
  background: rgba(4, 7, 14, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: none;
  flex-direction: column;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.lightbox-modal.active {
  display: flex;
  opacity: 1;
}

.lightbox-header {
  height: 64px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(7, 11, 20, 0.8);
}

.lightbox-title-wrap {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lightbox-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.lightbox-counter {
  font-size: 0.82rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.lightbox-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lightbox-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 1rem;
}

.lightbox-btn:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.3);
}

.lightbox-body {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 20px;
}

.lightbox-img-wrapper {
  max-width: 92%;
  max-height: 88vh;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: grab;
  user-select: none;
  transition: transform 0.2s ease-out;
}

.lightbox-img-wrapper:active {
  cursor: grabbing;
}

.lightbox-img {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 0 60px rgba(0, 0, 0, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.lightbox-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--border-subtle);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  cursor: pointer;
  transition: all 0.2s ease;
  z-index: 10;
}

.lightbox-arrow:hover {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  transform: translateY(-50%) scale(1.1);
}

.lightbox-arrow.prev { left: 24px; }
.lightbox-arrow.next { right: 24px; }

.lightbox-footer {
  height: 60px;
  padding: 0 24px;
  border-top: 1px solid var(--border-subtle);
  background: rgba(7, 11, 20, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.thumb-item, .lightbox-thumb {
  width: 54px;
  height: 38px;
  border-radius: 4px;
  overflow: hidden;
  opacity: 0.4;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.thumb-item.active, .thumb-item:hover,
.lightbox-thumb.active, .lightbox-thumb:hover {
  opacity: 1;
  border-color: var(--accent-cyan);
}

.thumb-item img, .lightbox-thumb img {
  width: 100% !important;
  height: 100% !important;
  max-width: 100% !important;
  max-height: 100% !important;
  object-fit: cover !important;
  display: block !important;
}

/* --------------------------------------------------------------------------
   Responsive Breakpoints
   -------------------------------------------------------------------------- */
@media (min-width: 1025px) and (max-width: 1240px) {
  .navbar .container {
    padding: 0 16px;
  }
  .nav-menu {
    gap: 4px;
  }
  .nav-menu .nav-link {
    padding: 6px 10px;
    font-size: 0.82rem;
  }
}

@media (max-width: 1024px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    width: 100%;
    background: rgba(10, 15, 29, 0.98);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    flex-direction: column;
    padding: 20px 24px;
    gap: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
  }
  .nav-menu.open {
    display: flex;
  }
  .nav-menu .nav-link {
    width: 100%;
    padding: 10px 14px;
    font-size: 0.95rem;
  }
  .mobile-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #ffffff;
    font-size: 1.25rem;
    cursor: pointer;
    transition: all 0.2s ease;
  }
  .mobile-toggle:hover {
    background: rgba(255, 255, 255, 0.12);
  }
  .pillar-card, .pillar-card.reverse {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .pillar-card.reverse .pillar-visual {
    order: 0;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 768px) {
  .lifecycle-stepper {
    grid-template-columns: repeat(3, 1fr);
  }
  .pillar-card {
    padding: 24px;
  }
  .cta-box {
    padding: 40px 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .nav-brand .nav-badge {
    display: none;
  }
  .nav-actions .btn-secondary {
    display: none;
  }
}

@media (max-width: 480px) {
  .lifecycle-stepper {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero {
    padding: 130px 0 60px;
  }
  .axiom-strip {
    flex-direction: column;
  }
  .hero-cta-group {
    flex-direction: column;
  }
  .btn {
    width: 100%;
  }
}