/* ==========================================================================
   ARGUS SOVEREIGN DESIGN SYSTEM — OFFICIAL WEBSITE STYLESHEET
   Aesthetics: Sovereign Luxury / Dark Modernist / Apple & Linear Precision
   ========================================================================== */

:root {
  --bg-deep: #070a0e;
  --bg-surface: #0d121a;
  --bg-card: rgba(18, 24, 36, 0.72);
  --bg-card-hover: rgba(24, 32, 48, 0.85);
  --bg-glass: rgba(13, 18, 26, 0.82);
  --bg-glass-strong: rgba(18, 24, 36, 0.94);

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.14);
  --border-bright: rgba(255, 255, 255, 0.28);
  --border-glow-cyan: rgba(34, 211, 238, 0.35);
  --border-glow-purple: rgba(168, 85, 247, 0.35);

  --text-primary: #ffffff;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-dim: #475569;

  --accent-cyan: #22d3ee;
  --accent-cyan-glow: rgba(34, 211, 238, 0.18);
  --accent-purple: #a855f7;
  --accent-purple-glow: rgba(168, 85, 247, 0.18);
  --accent-green: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  --accent-blue: #38bdf8;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, Consolas, Monaco, monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-elevated: 0 12px 40px rgba(0, 0, 0, 0.6);
  --shadow-glow-cyan: 0 0 35px rgba(34, 211, 238, 0.18);
  --shadow-glow-purple: 0 0 35px rgba(168, 85, 247, 0.18);

  --transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
  background-color: var(--bg-deep);
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
}

/* Background Ambient Canvas */
#ambient-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  opacity: 0.65;
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
  position: relative;
  z-index: 1;
}

.container-wide {
  max-width: 1440px;
}

.container-narrow {
  max-width: 900px;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
}

p {
  color: var(--text-secondary);
  font-size: 1.0625rem;
  line-height: 1.7;
}

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

.gradient-text-cyan {
  background: linear-gradient(135deg, #ffffff 20%, #22d3ee 80%, #38bdf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-purple {
  background: linear-gradient(135deg, #ffffff 20%, #c084fc 70%, #a855f7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-gold {
  background: linear-gradient(135deg, #ffffff 30%, #fbbf24 85%, #f59e0b 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-cyan);
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.25);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 20px;
  backdrop-filter: blur(8px);
}

.kicker-purple {
  color: var(--accent-purple);
  background: rgba(168, 85, 247, 0.08);
  border-color: rgba(168, 85, 247, 0.25);
}

.kicker-green {
  color: var(--accent-green);
  background: rgba(16, 185, 129, 0.08);
  border-color: rgba(16, 185, 129, 0.25);
}

/* ==========================================================================
   NAVIGATION BAR
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: all var(--transition-normal);
  padding: 20px 0;
}

.site-header.scrolled {
  padding: 12px 0;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: #ffffff;
}

.brand-mark {
  width: 32px;
  height: 32px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-mark svg {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 0 10px rgba(34, 211, 238, 0.5));
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  list-style: none;
  white-space: nowrap;
}

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

.nav-link:hover {
  color: #ffffff;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--accent-cyan);
  transition: all var(--transition-fast);
  transform: translateX(-50%);
  border-radius: 2px;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Button System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  white-space: nowrap;
  outline: none;
}

.btn-primary {
  background: linear-gradient(135deg, #22d3ee, #0284c7);
  color: #070a0e;
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(34, 211, 238, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #38bdf8, #0369a1);
  transform: translateY(-1px);
  box-shadow: 0 6px 25px rgba(34, 211, 238, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-medium);
  color: #ffffff;
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--border-bright);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  color: #ffffff;
}

.btn-sm {
  padding: 7px 16px;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 14px 32px;
  font-size: 1.0625rem;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
  padding: 8px;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  padding-top: 150px;
  padding-bottom: 90px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-glow-sphere {
  position: absolute;
  top: 15%;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 450px;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.15) 0%, rgba(168, 85, 247, 0.1) 40%, transparent 70%);
  filter: blur(60px);
  pointer-events: none;
  z-index: 0;
}

.hero-title {
  font-size: clamp(2.5rem, 5.5vw, 4.75rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  max-width: 1050px;
  margin: 0 auto 24px auto;
  line-height: 1.08;
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.35rem);
  max-width: 780px;
  margin: 0 auto 38px auto;
  color: var(--text-secondary);
  line-height: 1.65;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

.hero-pills {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.hero-pill-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.hero-pill-item svg {
  width: 16px;
  height: 16px;
  color: var(--accent-cyan);
}

/* Hero Showcase Frame */
.showcase-frame-wrap {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  perspective: 1200px;
}

.showcase-chassis {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.02) 100%);
  padding: 10px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-medium);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.8), 0 0 50px rgba(34, 211, 238, 0.12);
  position: relative;
}

.showcase-titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px 12px 16px;
}

.window-dots {
  display: flex;
  align-items: center;
  gap: 7px;
}

.window-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot-red { background: #ff5f56; }
.dot-yellow { background: #ffbd2e; }
.dot-green { background: #27c93f; }

.window-status-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-cyan);
  background: rgba(34, 211, 238, 0.08);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(34, 211, 238, 0.2);
}

.status-pulse-dot {
  width: 6px;
  height: 6px;
  background: var(--accent-cyan);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-cyan);
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.showcase-screen-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: #000;
  position: relative;
}

.showcase-screen-wrap img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--transition-smooth);
}

/* ==========================================================================
   METRICS BAR SECTION
   ========================================================================== */
.metrics-strip {
  padding: 40px 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(13, 18, 26, 0.4);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.metric-card {
  text-align: center;
  padding: 10px;
}

.metric-num {
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 6px;
}

.metric-label {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  font-weight: 500;
}

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

/* ==========================================================================
   INTERACTIVE OS WORKBENCH (FLAGSHIP SHOWCASE)
   ========================================================================== */
.os-showcase-section {
  padding: 110px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 820px;
  margin: 0 auto 50px auto;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3.25rem);
  margin-bottom: 18px;
}

.section-desc {
  font-size: 1.125rem;
  color: var(--text-secondary);
}

/* OS Switcher Tabs */
.os-tabs-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 36px;
  background: rgba(18, 24, 36, 0.6);
  padding: 8px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  max-width: 980px;
  margin-left: auto;
  margin-right: auto;
  backdrop-filter: blur(12px);
}

.os-tab-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  outline: none;
}

.os-tab-btn:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.04);
}

.os-tab-btn.active {
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.15), rgba(14, 165, 233, 0.08));
  border-color: rgba(34, 211, 238, 0.4);
  color: #ffffff;
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.15);
}

.os-tab-btn svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-fast);
}

.os-tab-btn.active svg {
  color: var(--accent-cyan);
  transform: scale(1.1);
}

/* OS Tab Panel Display */
.os-display-card {
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-elevated), 0 0 40px rgba(34, 211, 238, 0.08);
  position: relative;
  transition: all var(--transition-normal);
}

.os-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 32px;
  background: rgba(13, 18, 26, 0.7);
  border-bottom: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  gap: 16px;
}

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

.os-icon-badge {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(34, 211, 238, 0.1);
  border: 1px solid rgba(34, 211, 238, 0.25);
  color: var(--accent-cyan);
}

.os-panel-title {
  font-size: 1.35rem;
  font-weight: 700;
}

.os-panel-subtitle {
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.os-tags {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.os-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

/* Image Hotspot Stage */
.os-stage-wrap {
  position: relative;
  background: #000;
  overflow: hidden;
}

.os-stage-wrap img {
  width: 100%;
  height: auto;
  display: block;
}

/* Hotspots */
.hotspot-pin {
  position: absolute;
  width: 28px;
  height: 28px;
  transform: translate(-50%, -50%);
  cursor: pointer;
  z-index: 10;
}

.hotspot-halo {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: rgba(34, 211, 238, 0.35);
  animation: pulseHalo 2s cubic-bezier(0.24, 0, 0.38, 1) infinite;
}

.hotspot-dot {
  position: absolute;
  top: 6px;
  left: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent-cyan);
  border: 2px solid #ffffff;
  box-shadow: 0 0 10px var(--accent-cyan);
}

@keyframes pulseHalo {
  0% { transform: scale(0.8); opacity: 0.8; }
  100% { transform: scale(2.4); opacity: 0; }
}

.hotspot-tooltip {
  position: absolute;
  bottom: 34px;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: rgba(13, 18, 26, 0.95);
  border: 1px solid var(--border-bright);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  width: 260px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(12px);
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  z-index: 20;
}

.hotspot-pin:hover .hotspot-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.hotspot-tooltip h5 {
  font-size: 0.875rem;
  color: #fff;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.hotspot-tooltip p {
  font-size: 0.78125rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

/* OS Feature Highlights Bar below image */
.os-feature-trio {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding: 24px 32px;
  background: rgba(13, 18, 26, 0.75);
  border-top: 1px solid var(--border-subtle);
}

.os-feat-item {
  display: flex;
  gap: 12px;
}

.os-feat-icon {
  color: var(--accent-cyan);
  flex-shrink: 0;
  margin-top: 2px;
}

.os-feat-item h4 {
  font-size: 0.9375rem;
  margin-bottom: 4px;
}

.os-feat-item p {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ==========================================================================
   WHY SOVEREIGNTY MATTERS (PRIVACY MANIFESTO)
   ========================================================================== */
.sovereignty-section {
  padding: 110px 0;
  background: linear-gradient(180deg, transparent 0%, rgba(13, 18, 26, 0.6) 50%, transparent 100%);
  position: relative;
}

.bento-trio {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.crisis-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.crisis-card:hover {
  transform: translateY(-3px);
  border-color: rgba(244, 63, 94, 0.35);
  box-shadow: 0 10px 30px rgba(244, 63, 94, 0.08);
}

.crisis-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-rose);
  background: rgba(244, 63, 94, 0.1);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 18px;
  border: 1px solid rgba(244, 63, 94, 0.2);
}

.crisis-title {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.crisis-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.sovereign-banner {
  margin-top: 40px;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.1), rgba(168, 85, 247, 0.08));
  border: 1px solid var(--border-glow-cyan);
  border-radius: var(--radius-xl);
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}

.sovereign-banner-content h3 {
  font-size: 1.75rem;
  margin-bottom: 8px;
}

.sovereign-banner-content p {
  color: var(--text-secondary);
  max-width: 680px;
}

/* ==========================================================================
   SYSTEMS ARCHITECTURE DEEP DIVE
   ========================================================================== */
.architecture-section {
  padding: 110px 0;
  position: relative;
}

.arch-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 50px;
}

.arch-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition-normal);
}

.arch-card:hover {
  border-color: var(--border-glow-cyan);
  box-shadow: var(--shadow-glow-cyan);
  transform: translateY(-2px);
}

.arch-card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.arch-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(34, 211, 238, 0.1);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
}

.arch-card h3 {
  font-size: 1.25rem;
}

.arch-card p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.arch-code-snippet {
  background: rgba(7, 10, 14, 0.85);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: #38bdf8;
  line-height: 1.5;
}

/* ==========================================================================
   COMPARISON MATRIX SECTION
   ========================================================================== */
.comparison-section {
  padding: 110px 0;
  position: relative;
}

.comparison-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  background: var(--bg-card);
  margin-top: 40px;
  box-shadow: var(--shadow-elevated);
}

.comparison-table {
  width: 100%;
  min-width: 700px;
  border-collapse: collapse;
  text-align: left;
}

.mobile-table-hint {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--accent-cyan);
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.2);
  border-radius: var(--radius-full);
  padding: 8px 16px;
  margin: 16px auto 0 auto;
  width: fit-content;
}

.comparison-table th,
.comparison-table td {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.comparison-table th {
  background: rgba(13, 18, 26, 0.85);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.comparison-table th.highlight-col {
  color: var(--accent-cyan);
  background: rgba(34, 211, 238, 0.08);
  border-left: 1px solid rgba(34, 211, 238, 0.2);
  border-right: 1px solid rgba(34, 211, 238, 0.2);
}

.comparison-table td.highlight-col {
  background: rgba(34, 211, 238, 0.03);
  border-left: 1px solid rgba(34, 211, 238, 0.15);
  border-right: 1px solid rgba(34, 211, 238, 0.15);
  font-weight: 600;
  color: #fff;
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.badge-yes {
  color: var(--accent-green);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.badge-no {
  color: var(--accent-rose);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ==========================================================================
   HARDWARE & SPECS CALCULATOR
   ========================================================================== */
.specs-section {
  padding: 110px 0;
  position: relative;
}

.specs-calculator-card {
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: 40px;
  margin-top: 40px;
  box-shadow: var(--shadow-elevated);
}

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

.calc-select-group {
  margin-bottom: 24px;
}

.calc-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.calc-options {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.calc-btn {
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.calc-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.calc-btn.active {
  background: rgba(34, 211, 238, 0.15);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.calc-result-box {
  background: rgba(7, 10, 14, 0.8);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.result-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.result-row:last-child {
  border-bottom: none;
}

.result-label {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.result-val {
  font-family: var(--font-mono);
  font-weight: 700;
  color: #fff;
}

.result-val.highlight {
  color: var(--accent-cyan);
}

/* ==========================================================================
   FOUNDER STORY
   ========================================================================== */
.story-section {
  padding: 110px 0;
  position: relative;
}

.story-card {
  background: linear-gradient(135deg, rgba(18, 24, 36, 0.9), rgba(13, 18, 26, 0.95));
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: 50px;
  position: relative;
  overflow: hidden;
}

.story-content {
  max-width: 800px;
}

.story-quote {
  font-size: 1.45rem;
  font-weight: 500;
  color: #fff;
  line-height: 1.5;
  margin: 24px 0;
  font-style: italic;
}

.founder-signature {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 30px;
}

.founder-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, #22d3ee, #a855f7);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #070a0e;
  font-size: 1.125rem;
}

.founder-name {
  font-size: 1.125rem;
  font-weight: 700;
  color: #fff;
}

.founder-role {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   FAQ ACCORDION
   ========================================================================== */
.faq-section {
  padding: 110px 0;
  position: relative;
}

.faq-list {
  max-width: 880px;
  margin: 40px auto 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--border-medium);
}

.faq-question {
  width: 100%;
  padding: 22px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
  border: none;
  color: #fff;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  gap: 16px;
}

.faq-icon {
  width: 20px;
  height: 20px;
  color: var(--accent-cyan);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.faq-answer-inner {
  padding: 0 28px 24px 28px;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* ==========================================================================
   SOVEREIGN UI BENTO GALLERY SECTION
   ========================================================================== */
.ui-gallery-section {
  padding: 120px 0;
  position: relative;
  background: radial-gradient(circle at 50% 0%, rgba(34, 211, 238, 0.04) 0%, transparent 60%);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.gallery-card {
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
}

.gallery-card:hover {
  transform: translateY(-4px);
  border-color: rgba(34, 211, 238, 0.4);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.4), 0 0 30px rgba(34, 211, 238, 0.12);
}

.gallery-card-header {
  padding: 24px 28px 18px 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(13, 18, 26, 0.5);
}

.gallery-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.gallery-domain-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-cyan);
}

.gallery-domain-badge svg {
  width: 16px;
  height: 16px;
}

.gallery-pill {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: rgba(34, 211, 238, 0.1);
  border: 1px solid rgba(34, 211, 238, 0.25);
  color: var(--accent-cyan);
}

.gallery-card-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: #ffffff;
  margin: 0;
}

.gallery-card-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}

.gallery-img-container {
  position: relative;
  overflow: hidden;
  background: #040609;
  cursor: zoom-in;
}

.gallery-img-container img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--transition-smooth);
}

.gallery-card:hover .gallery-img-container img {
  transform: scale(1.02);
}

.gallery-zoom-overlay {
  position: absolute;
  inset: 0;
  background: rgba(7, 10, 14, 0.4);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
  pointer-events: none;
}

.gallery-card:hover .gallery-zoom-overlay {
  opacity: 1;
}

.zoom-badge {
  background: rgba(18, 24, 36, 0.9);
  border: 1px solid rgba(34, 211, 238, 0.4);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
}

.gallery-card-footer {
  padding: 16px 28px;
  background: rgba(13, 18, 26, 0.6);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.gallery-footer-specs {
  display: flex;
  align-items: center;
  gap: 16px;
}

.gallery-spec-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.gallery-spec-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
}

/* Lightbox Modal */
.image-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(4, 6, 9, 0.92);
  backdrop-filter: blur(16px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.image-lightbox.active {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-content {
  max-width: 90vw;
  max-height: 90vh;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-medium);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.8), 0 0 50px rgba(34, 211, 238, 0.15);
}

.lightbox-caption {
  margin-top: 16px;
  font-size: 1rem;
  color: #ffffff;
  font-weight: 600;
  text-align: center;
}

.lightbox-close-btn {
  position: absolute;
  top: -48px;
  right: 0;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  transition: all var(--transition-fast);
}

.lightbox-close-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: scale(1.1);
}

/* ==========================================================================
   FINAL CTA / FOOTER
   ========================================================================== */
.cta-section {
  padding: 110px 0 80px 0;
  text-align: center;
  position: relative;
}

.cta-box {
  background: radial-gradient(circle at center, rgba(34, 211, 238, 0.12) 0%, rgba(18, 24, 36, 0.8) 70%);
  border: 1px solid var(--border-glow-cyan);
  border-radius: var(--radius-xl);
  padding: 70px 40px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6), var(--shadow-glow-cyan);
}

.cta-box h2 {
  font-size: clamp(2.25rem, 4.5vw, 3.5rem);
  margin-bottom: 16px;
}

.cta-box p {
  font-size: 1.1875rem;
  max-width: 640px;
  margin: 0 auto 36px auto;
}

/* Site Footer */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 40px 0;
  background: rgba(7, 10, 14, 0.9);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand p {
  font-size: 0.875rem;
  margin-top: 12px;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #fff;
  margin-bottom: 18px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer-col a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.8125rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 16px;
}

/* ==========================================================================
   MODAL SYSTEM
   ========================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-dialog {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 520px;
  padding: 36px;
  position: relative;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.9);
  transform: scale(0.95);
  transition: transform var(--transition-fast);
}

.modal-overlay.active .modal-dialog {
  transform: scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px;
}

.modal-close-btn:hover {
  color: #fff;
}

.form-group {
  margin-bottom: 20px;
  text-align: left;
}

.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-input:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(34, 211, 238, 0.2);
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS
   ========================================================================== */
@media (max-width: 1024px) {
  .gallery-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .bento-trio {
    grid-template-columns: 1fr;
  }
  .arch-grid {
    grid-template-columns: 1fr;
  }
  .calculator-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .os-feature-trio {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  /* Layout & Container */
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  /* Section Spacing & Headers */
  .ui-gallery-section,
  .os-showcase-section,
  .sovereignty-section,
  .architecture-section,
  .comparison-section,
  .specs-section,
  .faq-section {
    padding: 60px 0;
  }
  .section-header {
    margin-bottom: 32px;
  }
  .section-title {
    font-size: 1.85rem;
    line-height: 1.2;
    margin-bottom: 12px;
  }
  .section-desc {
    font-size: 0.95rem;
  }

  /* Header & Navigation */
  .nav-links {
    display: none;
  }
  .mobile-toggle {
    display: block;
    margin-left: 4px;
  }
  .nav-container {
    gap: 8px;
  }
  .brand-logo {
    font-size: 1.05rem;
    gap: 8px;
  }
  .brand-mark {
    width: 26px;
    height: 26px;
  }
  .nav-actions {
    gap: 6px;
  }
  .nav-actions .open-investor-btn {
    display: none;
  }
  .nav-actions .open-waitlist-btn {
    padding: 6px 12px;
    font-size: 0.75rem;
  }

  /* Hero Section */
  .hero-section {
    padding-top: 105px;
    padding-bottom: 50px;
  }
  .hero-title {
    font-size: 2.15rem;
  }
  .hero-subtitle {
    font-size: 0.95rem;
  }
  .hero-pills {
    gap: 10px;
    margin-bottom: 36px;
  }
  .hero-pill-item {
    font-size: 0.75rem;
  }

  /* Metrics Strip */
  .metrics-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* Interactive OS Workbench */
  .os-tabs-nav {
    flex-wrap: nowrap;
    overflow-x: auto;
    justify-content: flex-start;
    -webkit-overflow-scrolling: touch;
    padding: 6px;
    border-radius: var(--radius-lg);
    scrollbar-width: none;
    margin-bottom: 24px;
  }
  .os-tabs-nav::-webkit-scrollbar {
    display: none;
  }
  .os-tab-btn {
    flex-shrink: 0;
    padding: 8px 14px;
    font-size: 0.8125rem;
    white-space: nowrap;
  }
  .os-panel-header {
    padding: 16px;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .os-header-left {
    gap: 12px;
  }
  .os-icon-badge {
    width: 36px;
    height: 36px;
  }
  .os-panel-title {
    font-size: 1.15rem;
  }
  .os-panel-subtitle {
    font-size: 0.8125rem;
  }
  .os-tags {
    gap: 6px;
  }
  .os-feature-trio {
    padding: 16px;
    gap: 16px;
  }
  .hotspot-tooltip {
    max-width: calc(100vw - 40px);
    width: 240px;
    font-size: 0.75rem;
  }

  /* Bento Gallery Cards — Full Width Single Column */
  .gallery-grid {
    grid-template-columns: 1fr;
    gap: 24px;
    margin-top: 28px;
  }
  .gallery-card {
    border-radius: var(--radius-lg);
  }
  .gallery-card-header {
    padding: 18px 16px 14px 16px;
    gap: 10px;
  }
  .gallery-card-top {
    flex-wrap: wrap;
    gap: 8px;
  }
  .gallery-domain-badge {
    font-size: 0.75rem;
  }
  .gallery-pill {
    font-size: 0.6875rem;
    padding: 3px 8px;
  }
  .gallery-card-title {
    font-size: 1.2rem;
    line-height: 1.3;
  }
  .gallery-card-desc {
    font-size: 0.875rem;
    line-height: 1.5;
  }
  .gallery-card-footer {
    padding: 12px 16px;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .gallery-footer-specs {
    flex-wrap: wrap;
    gap: 6px;
  }
  .gallery-spec-item {
    font-size: 0.75rem;
  }

  /* Comparison Matrix */
  .mobile-table-hint {
    display: inline-flex;
  }
  .comparison-table-wrap {
    margin-top: 20px;
    border-radius: var(--radius-lg);
  }
  .comparison-table th,
  .comparison-table td {
    padding: 14px 16px;
    font-size: 0.8125rem;
  }
  .comparison-table th {
    font-size: 0.8125rem;
  }

  /* Hardware Specs & Calculator */
  .specs-calculator-card {
    padding: 18px 16px;
    border-radius: var(--radius-lg);
  }
  .calc-buttons-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .calc-btn {
    padding: 10px 12px;
    font-size: 0.8125rem;
  }
  .calc-result-box {
    padding: 16px;
    border-radius: var(--radius-md);
  }
  .result-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-subtle);
  }
  .result-label {
    font-size: 0.8125rem;
    color: var(--text-muted);
  }
  .result-val {
    font-size: 0.9375rem;
  }

  /* Cards & Sections */
  .bento-card {
    padding: 24px 18px;
    border-radius: var(--radius-lg);
  }
  .arch-card {
    padding: 24px 18px;
    border-radius: var(--radius-lg);
  }
  .story-card {
    padding: 24px 16px;
  }
  .story-quote {
    font-size: 0.9375rem;
  }
  .cta-box {
    padding: 40px 18px;
    border-radius: var(--radius-lg);
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  /* Modals */
  .modal-card {
    padding: 24px 18px;
    max-width: 94vw;
    max-height: 90vh;
    border-radius: var(--radius-lg);
  }
  .modal-title {
    font-size: 1.35rem;
  }
}