/* ==========================================================================
   VAULT & .SECURE FILE FORMAT - LIGHT UI DESIGN SYSTEM
   Inspired by Coralgenz Global / Vault
   Clean Crisp Enterprise Light Theme with Vibrant Cryptographic Accents
   ========================================================================== */

:root {
  /* Color Palette - Light UI */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f1f5f9;
  --bg-subtle: #f1f5f9;
  
  --border-subtle: #e2e8f0;
  --border-card: #e2e8f0;
  --border-hover: #c4b5fd;
  --border-glow: rgba(124, 58, 237, 0.25);
  
  --primary: #0066ff;
  --primary-hover: #0052cc;
  --primary-purple: #7c3aed;
  --primary-purple-hover: #6d28d9;
  
  --accent-cyan: #0284c7;
  --accent-cyan-light: #38bdf8;
  --accent-emerald: #059669;
  --accent-emerald-light: #10b981;
  --accent-amber: #d97706;
  --accent-rose: #e11d48;
  
  --text-main: #0f172a;
  --text-heading: #0f172a;
  --text-muted: #475569;
  --text-subtle: #64748b;
  
  /* Fonts */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Space Grotesk', 'Outfit', var(--font-sans);
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 20px -2px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 16px 32px -8px rgba(124, 58, 237, 0.12);
  --shadow-card: 0 10px 25px -5px rgba(15, 23, 42, 0.08);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  --container-max: 1200px;
}

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

html {
  font-family: var(--font-sans);
  font-size: 16px;
  background-color: var(--bg-primary);
  color: var(--text-main);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: #f8fafc;
  background-image: radial-gradient(#e2e8f0 1px, transparent 1px);
  background-size: 32px 32px;
  color: var(--text-main);
  overflow-x: hidden;
  position: relative;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(16px, 4vw, 32px);
  padding-right: clamp(16px, 4vw, 32px);
  position: relative;
  z-index: 1;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--text-heading);
  font-weight: 800;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(1.75rem, 3.8vw, 2.4rem);
  letter-spacing: -0.02em;
}

h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.6rem);
  letter-spacing: -0.01em;
}

p {
  color: var(--text-muted);
  line-height: 1.75;
  font-size: clamp(0.95rem, 1.4vw, 1.05rem);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-hover);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  min-height: 48px;
  touch-action: manipulation;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #0066ff 0%, #0052cc 100%);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(0, 102, 255, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #1a75ff 0%, #0066ff 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 102, 255, 0.45);
  color: #ffffff;
}

.btn-purple {
  background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(124, 58, 237, 0.35);
}

.btn-purple:hover {
  background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(124, 58, 237, 0.45);
  color: #ffffff;
}

.btn-emerald {
  background: linear-gradient(135deg, #059669 0%, #047857 100%);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(5, 150, 105, 0.35);
}

.btn-emerald:hover {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(5, 150, 105, 0.45);
  color: #ffffff;
}

.btn-secondary {
  background: #ffffff;
  color: #0f172a;
  border: 1px solid #e2e8f0;
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: #f8fafc;
  border-color: #cbd5e1;
  transform: translateY(-2px);
  color: #0066ff;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
  min-height: 38px;
  border-radius: var(--radius-sm);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.badge-blue {
  background: #eff6ff;
  color: #0066ff;
  border: 1px solid #bfdbfe;
}

.badge-purple {
  background: #f5f3ff;
  color: #7c3aed;
  border: 1px solid #ddd6fe;
}

.badge-emerald {
  background: #ecfdf5;
  color: #059669;
  border: 1px solid #a7f3d0;
}

.badge-amber {
  background: #fffbeb;
  color: #d97706;
  border: 1px solid #fde68a;
}

.badge-cyan {
  background: #f0f9ff;
  color: #0284c7;
  border: 1px solid #bae6fd;
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 8px currentColor;
  animation: pulse-dot-anim 2s infinite;
}

@keyframes pulse-dot-anim {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid #e2e8f0;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.05);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo-img {
  height: 48px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
}

.brand-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 900;
  color: #0f172a;
  letter-spacing: -0.02em;
}

.brand-title .format-tag {
  color: #0066ff;
}

.brand-subtitle {
  font-size: 0.72rem;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
}

/* Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  font-size: 0.92rem;
  font-weight: 600;
  color: #475569;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.nav-link:hover {
  color: #0066ff;
  background: #f1f5f9;
}

.nav-link.active {
  color: #0066ff;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  font-weight: 700;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Mobile Toggle Button */
.mobile-toggle {
  display: none;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  color: #0f172a;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  top: 76px;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 99;
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto;
  border-bottom: 2px solid #0066ff;
}

.mobile-drawer.is-open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 700;
  color: #0f172a;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.mobile-nav-link:hover, .mobile-nav-link.active {
  background: #eff6ff;
  border-color: #0066ff;
  color: #0066ff;
}

.mobile-drawer-footer {
  margin-top: auto;
  padding-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Hero Section */
.hero-section {
  padding: clamp(48px, 7vw, 84px) 0 clamp(36px, 5vw, 56px) 0;
  text-align: center;
  position: relative;
}

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

.hero-title {
  margin: 20px 0 16px 0;
  color: #0f172a;
}

.hero-title-highlight {
  color: #0066ff;
}

.hero-desc {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  max-width: 760px;
  margin: 0 auto 32px auto;
  color: #475569;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 40px;
}

/* Launch CTA Card Banner */
.launch-cta-banner {
  background: linear-gradient(135deg, #0066ff 0%, #7c3aed 100%);
  border-radius: var(--radius-xl);
  padding: clamp(24px, 4vw, 40px);
  color: #ffffff;
  text-align: center;
  margin: 48px 0;
  box-shadow: 0 20px 40px -10px rgba(0, 102, 255, 0.4);
  position: relative;
  overflow: hidden;
}

.launch-cta-banner h2 {
  color: #ffffff;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  margin-bottom: 12px;
}

.launch-cta-banner p {
  color: #e2e8f0;
  max-width: 650px;
  margin: 0 auto 24px auto;
  font-size: 1.05rem;
}

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

/* Metric Ribbon */
.metric-ribbon {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 28px;
}

.metric-pill {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-lg);
  padding: 20px 16px;
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-fast);
}

.metric-pill:hover {
  transform: translateY(-2px);
  border-color: #cbd5e1;
}

.metric-val {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 4px;
}

.metric-lbl {
  font-size: 0.78rem;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 700;
}

/* Spotlight Direct Answer Box */
.inventor-spotlight-box {
  background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #0f172a 100%);
  border: 2px solid #7c3aed;
  border-radius: var(--radius-xl);
  padding: clamp(24px, 4vw, 40px);
  color: #ffffff;
  box-shadow: 0 20px 40px -15px rgba(124, 58, 237, 0.35);
  position: relative;
  overflow: hidden;
  margin: 36px 0 48px 0;
}

.inventor-spotlight-box::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.25) 0%, transparent 70%);
  pointer-events: none;
}

.inventor-spotlight-title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 900;
  color: #ffffff;
  line-height: 1.3;
  margin-bottom: 14px;
}

.inventor-spotlight-answer {
  font-size: clamp(0.98rem, 1.6vw, 1.12rem);
  line-height: 1.8;
  color: #cbd5e1;
  margin-bottom: 24px;
}

.inventor-spotlight-answer strong {
  color: #38bdf8;
  font-weight: 700;
}

.citation-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.citation-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.citation-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #a78bfa;
  font-weight: 700;
}

.citation-value {
  color: #f8fafc;
  font-weight: 700;
  font-size: 0.95rem;
}

/* Section Header */
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 40px auto;
}

.section-title {
  margin-top: 10px;
  margin-bottom: 12px;
}

.section-desc {
  font-size: 1.05rem;
  color: #64748b;
}

/* Light Architecture Cards */
.light-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-lg);
  padding: clamp(20px, 3vw, 32px);
  box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.06);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.light-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px -8px rgba(124, 58, 237, 0.15);
  border-color: #c4b5fd;
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin: 32px 0;
}

.pillar-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.sec-code-chip {
  background: #f1f5f9;
  color: #0f172a;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 3px 8px;
  border-radius: 6px;
  font-weight: 700;
  border: 1px solid #e2e8f0;
}

.sec-arch-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 16px 0 20px 0;
  font-size: 0.92rem;
  line-height: 1.65;
  color: #475569;
}

.sec-arch-list li {
  position: relative;
  padding-left: 20px;
}

.sec-arch-list li::before {
  content: "•";
  position: absolute;
  left: 2px;
  top: -1px;
  color: #7c3aed;
  font-size: 18px;
  font-weight: bold;
}

.sec-arch-list strong {
  color: #0f172a;
  font-weight: 700;
}

/* Feature Parameter Summary Box (No Leaked Code) */
.param-summary-box {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-md);
  padding: 14px 16px;
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.82rem;
}

.param-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.param-label {
  color: #64748b;
  font-weight: 600;
}

.param-val {
  color: #0066ff;
  font-weight: 700;
}

/* Standalone Execution Lifecycle Pipeline */
.lifecycle-pipeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin: 32px 0;
  position: relative;
}

.lifecycle-step {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-lg);
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  position: relative;
}

.lifecycle-step:hover {
  transform: translateY(-3px);
  border-color: #0066ff;
  box-shadow: var(--shadow-md);
}

.lifecycle-step-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 800;
  color: #0066ff;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  padding: 2px 8px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 12px;
  width: fit-content;
}

.lifecycle-step-title {
  font-size: 0.95rem;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 8px;
  line-height: 1.3;
}

.lifecycle-step-desc {
  font-size: 0.82rem;
  color: #64748b;
  line-height: 1.5;
}

/* Compliance Grid */
.compliance-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 32px 0;
}

.compliance-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.compliance-card:hover {
  transform: translateY(-2px);
  border-color: #7c3aed;
  box-shadow: var(--shadow-md);
}

.compliance-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.compliance-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: #0f172a;
}

.compliance-desc {
  font-size: 0.86rem;
  color: #475569;
  line-height: 1.55;
}

.compliance-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 700;
  color: #059669;
  background: #ecfdf5;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  border: 1px solid #a7f3d0;
  width: fit-content;
  margin-top: auto;
}

/* Executive Interactive Simulator */
.exec-sim-container {
  background: #ffffff;
  border: 2px solid #e2e8f0;
  border-radius: var(--radius-xl);
  padding: clamp(24px, 4vw, 40px);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  margin: 40px 0;
}

.sim-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 24px;
}

.sim-input-box {
  width: 100%;
  background: #f8fafc;
  border: 1px solid #cbd5e1;
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 0.95rem;
  color: #0f172a;
  outline: none;
}

.sim-input-box:focus {
  border-color: #0066ff;
  background: #ffffff;
}

.sim-status-window {
  background: #0f172a;
  border-radius: var(--radius-lg);
  padding: 20px;
  color: #f8fafc;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 240px;
}

.sim-log-step {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: #cbd5e1;
}

.sim-log-step.active {
  color: #38bdf8;
  font-weight: 700;
}

.sim-log-step.success {
  color: #34d399;
  font-weight: 700;
}

/* Byte Layout Visualizer */
.byte-map-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 28px 0;
  overflow-x: auto;
  padding-bottom: 8px;
}

.byte-row {
  display: flex;
  gap: 8px;
  min-width: 720px;
}

.byte-block {
  padding: 14px 12px;
  border-radius: var(--radius-sm);
  background: #ffffff;
  border: 2px solid #e2e8f0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  box-shadow: var(--shadow-sm);
}

.byte-offset {
  font-size: 0.72rem;
  color: #64748b;
  font-weight: 600;
}

.byte-name {
  font-weight: 800;
  font-size: 0.88rem;
  color: #0f172a;
}

.byte-size {
  font-size: 0.75rem;
  color: #0066ff;
  font-weight: 700;
}

/* Comparison Table */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 32px 0;
  border-radius: var(--radius-lg);
  border: 1px solid #e2e8f0;
  background: #ffffff;
  box-shadow: var(--shadow-md);
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
}

.spec-table th {
  background: #f1f5f9;
  padding: 16px 20px;
  font-weight: 800;
  color: #0f172a;
  border-bottom: 2px solid #e2e8f0;
  white-space: nowrap;
}

.spec-table td {
  padding: 16px 20px;
  border-bottom: 1px solid #f1f5f9;
  color: #475569;
}

.spec-table tr:hover td {
  background: #f8fafc;
}

.spec-table .highlight-col {
  background: #eff6ff;
  font-weight: 700;
  color: #0066ff;
}

.check-ok {
  color: #059669;
  font-weight: 800;
}

.check-no {
  color: #e11d48;
  font-weight: 800;
}

/* FAQ Accordion */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 32px 0;
}

.faq-item {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-fast);
}

.faq-item.is-open {
  border-color: #0066ff;
}

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 18px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: #0f172a;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 800;
  cursor: pointer;
}

.faq-chevron {
  transition: transform var(--transition-normal);
  color: #0066ff;
  flex-shrink: 0;
}

.faq-item.is-open .faq-chevron {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 22px 20px 22px;
  color: #475569;
  font-size: 0.95rem;
  line-height: 1.75;
  display: none;
}

.faq-item.is-open .faq-answer {
  display: block;
}

/* Footer */
.site-footer {
  background: #ffffff;
  border-top: 1px solid #e2e8f0;
  padding: 64px 0 32px 0;
  margin-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand-desc {
  margin-top: 14px;
  font-size: 0.9rem;
  color: #64748b;
  max-width: 320px;
  line-height: 1.7;
}

.footer-heading {
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #0f172a;
  margin-bottom: 18px;
}

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

.footer-link {
  color: #64748b;
  font-size: 0.9rem;
  font-weight: 500;
}

.footer-link:hover {
  color: #0066ff;
}

.footer-bottom {
  padding-top: 28px;
  border-top: 1px solid #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
  color: #64748b;
}

/* Mobile Bottom Quick Dock */
.mobile-bottom-dock {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid #e2e8f0;
  z-index: 95;
  padding: 6px 12px;
  align-items: center;
  justify-content: space-around;
  box-shadow: 0 -2px 10px rgba(15, 23, 42, 0.05);
}

.dock-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  color: #64748b;
  font-size: 0.68rem;
  font-weight: 700;
  text-decoration: none;
}

.dock-item.active, .dock-item:hover {
  color: #0066ff;
}

.dock-item svg {
  width: 20px;
  height: 20px;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .pillars-grid {
    grid-template-columns: 1fr;
  }
  
  .lifecycle-pipeline {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .compliance-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  
  .mobile-toggle {
    display: flex;
  }
  
  .mobile-bottom-dock {
    display: flex;
  }
  
  body {
    padding-bottom: 64px;
  }
  
  .lifecycle-pipeline {
    grid-template-columns: 1fr;
  }
  
  .compliance-grid {
    grid-template-columns: 1fr;
  }
  
  .metric-ribbon {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .sim-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-actions, .launch-cta-buttons {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-actions .btn, .launch-cta-buttons .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .metric-ribbon {
    grid-template-columns: 1fr;
  }
  
  .citation-grid {
    grid-template-columns: 1fr;
  }
  
  .light-card {
    padding: 18px 16px;
  }
  
  .inventor-spotlight-box {
    padding: 22px 16px;
  }
}