/* ==========================================================================
   swarm — Design System & Custom Stylesheet
   ========================================================================== */

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

:root {
  /* Color Palettes — HSL & OKLCH */
  --bg-dark: hsl(165, 24%, 7%);
  --bg-darker: hsl(160, 22%, 4%);
  --bg-card: rgba(15, 24, 22, 0.7);
  --bg-card-hover: rgba(22, 38, 34, 0.85);
  
  --border-glow: rgba(40, 184, 135, 0.24);
  --border-muted: rgba(255, 255, 255, 0.07);
  --border-light: rgba(255, 255, 255, 0.15);
  
  /* Primary & Accent Gradients */
  --accent-purple: oklch(0.76 0.16 145);
  --accent-cyan: oklch(0.75 0.18 190);
  --accent-green: oklch(0.76 0.18 145);
  --accent-red: oklch(0.63 0.21 25);
  --accent-yellow: oklch(0.82 0.16 85);
  
  --gradient-purple: linear-gradient(135deg, oklch(0.74 0.16 150), oklch(0.58 0.14 185));
  --gradient-cyan: linear-gradient(135deg, oklch(0.78 0.16 190), oklch(0.55 0.18 200));
  --gradient-text: linear-gradient(90deg, oklch(0.75 0.18 190) 0%, oklch(0.82 0.16 85) 100%);
  --gradient-warning: linear-gradient(135deg, oklch(0.2 0.07 25), oklch(0.12 0.03 25));
  
  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Outfit', var(--font-sans);
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Layout Spaces & Radii */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-squircle: 20px;
  
  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow-purple: 0 0 30px rgba(40, 184, 135, 0.18);
  --shadow-glow-cyan: 0 0 30px rgba(0, 206, 201, 0.15);
}

/* Fallback for Oklch gradient colors where not supported */
@supports (linear-gradient(in oklab, white, black)) {
  :root {
    --gradient-text: linear-gradient(90deg in oklab, oklch(0.75 0.18 190) 0%, oklch(0.82 0.16 85) 100%);
  }
}

/* Base Styles */
html {
  scroll-behavior: smooth;
  background-color: var(--bg-darker);
  color: #f5f6fa;
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body {
  position: relative;
  background: radial-gradient(circle at 50% 0%, var(--bg-dark) 0%, var(--bg-darker) 100%);
}

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

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

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
}

h2 {
  font-size: clamp(2rem, 3.5vw, 3rem);
}

h3 {
  font-size: clamp(1.35rem, 2vw, 1.8rem);
}

p {
  color: var(--text-muted, #a5b1c2);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-darker);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 5px;
  border: 2px solid var(--bg-darker);
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* Shared Containers */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 120px 0;
  position: relative;
}

.section-header {
  max-width: 700px;
  margin-bottom: 72px;
}

.section-title {
  margin-bottom: 16px;
  background: linear-gradient(135deg, #ffffff 0%, rgba(255, 255, 255, 0.7) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-desc {
  font-size: 1.15rem;
  font-weight: 400;
}

/* Button UI Components */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
  white-space: nowrap;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

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

.btn-primary {
  background: var(--gradient-purple);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 15px rgba(40, 184, 135, 0.32);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(40, 184, 135, 0.46), var(--shadow-glow-purple);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  border: 1px solid var(--border-muted);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--border-light);
}

.btn-outline {
  background: transparent;
  color: #ffffff;
  border: 1px solid var(--border-light);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: #ffffff;
  transform: translateY(-2px);
}

.btn-icon {
  flex-shrink: 0;
}

/* Pill Badges */
.pill-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: 9999px;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: rgba(40, 184, 135, 0.12);
  border: 1px solid rgba(40, 184, 135, 0.24);
  color: oklch(0.78 0.15 150);
  margin-bottom: 24px;
}

/* Text Formatting helper */
.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-cyan { color: oklch(0.75 0.18 190); }
.text-purple { color: oklch(0.80 0.14 82); }
.text-green { color: oklch(0.76 0.18 145); }
.text-red { color: oklch(0.65 0.2 25); }

/* ==========================================================================
   Header / Navigation Bar
   ========================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  z-index: 1000;
  border-bottom: 1px solid var(--border-muted);
  backdrop-filter: blur(16px) saturate(180%);
  background-color: rgba(8, 8, 16, 0.65);
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  height: 64px;
  background-color: rgba(5, 5, 10, 0.85);
  box-shadow: var(--shadow-sm);
}

.navbar-container {
  max-width: 1200px;
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.45rem;
  letter-spacing: -0.03em;
}

.logo-svg {
  color: oklch(0.78 0.15 150);
  transition: transform var(--transition-slow);
}

.logo:hover .logo-svg {
  transform: rotate(30deg) scale(1.05);
}

.logo-text {
  background: linear-gradient(90deg, #ffffff 0%, rgba(255, 255, 255, 0.7) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Nav links styling */
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 6px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--gradient-text);
  transition: width var(--transition-fast);
}

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

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

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1100;
}

.mobile-menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: #ffffff;
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  padding-top: 180px;
  padding-bottom: 120px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 600px;
  background: radial-gradient(circle, rgba(40, 184, 135, 0.18) 0%, rgba(0, 206, 201, 0.05) 50%, transparent 100%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 64px;
  position: relative;
  z-index: 1;
}

.hero-text-content {
  max-width: 650px;
}

.hero-title {
  margin-bottom: 24px;
  line-height: 1.05;
}

.hero-subtitle {
  font-size: 1.25rem;
  font-weight: 400;
  line-height: 1.5;
  margin-bottom: 40px;
  color: #b2bec3;
}

.hero-buttons {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* ==========================================================================
   Terminal / Interactive Console
   ========================================================================== */
.hero-visual {
  width: 100%;
  display: flex;
  justify-content: center;
}

.terminal {
  width: 100%;
  max-width: 540px;
  background: var(--bg-card);
  border: 1px solid var(--border-muted);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg), var(--shadow-glow-purple);
  overflow: hidden;
  backdrop-filter: blur(12px);
  transition: transform var(--transition-slow), border-color var(--transition-normal);
}

.terminal:hover {
  border-color: var(--border-glow);
}

.terminal-header {
  background: rgba(0, 0, 0, 0.2);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.terminal-dots {
  display: flex;
  gap: 6px;
  margin-right: 20px;
}

.terminal-dots .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.terminal-dots .close { background-color: #ff5f56; }
.terminal-dots .minimize { background-color: #ffbd2e; }
.terminal-dots .expand { background-color: #27c93f; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
}

.terminal-tabs {
  display: flex;
  background: rgba(0, 0, 0, 0.15);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.tab-btn {
  flex: 1;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 10px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  background: rgba(255, 255, 255, 0.02);
  color: #ffffff;
}

.tab-btn.active {
  background: rgba(0, 0, 0, 0.1);
  color: oklch(0.78 0.15 150);
  border-bottom-color: oklch(0.78 0.15 150);
  font-weight: 500;
}

.terminal-content {
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  background: rgba(0, 0, 0, 0.25);
}

.tab-pane {
  display: none;
  animation: fadeIn 0.3s ease-out;
  flex-grow: 1;
}

.tab-pane.active {
  display: flex;
  flex-direction: column;
}

.console-line {
  margin-bottom: 12px;
  line-height: 1.4;
}

.prompt-line {
  color: #ffffff;
}

.prompt-symbol {
  color: oklch(0.75 0.18 190);
  font-weight: bold;
}

.system-line {
  color: #888899;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Tab 1 Flowchart Visuals */
.flow-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 18px 0;
  background: rgba(255, 255, 255, 0.02);
  padding: 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.03);
}

.flow-node {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-muted);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  text-align: center;
  font-size: 0.75rem;
  width: 100%;
  max-width: 240px;
}

.flow-node .node-label {
  font-weight: 600;
  color: #ffffff;
}

.flow-node .node-sub {
  color: var(--text-muted);
  font-size: 0.7rem;
}

.flow-node .node-status {
  font-size: 0.65rem;
  margin-top: 2px;
}

.flow-connectors {
  display: flex;
  justify-content: space-around;
  width: 100%;
  height: 24px;
  position: relative;
  max-width: 320px;
}

.flow-connectors .line {
  width: 1.5px;
  background-color: var(--border-muted);
}

.flow-connectors .diagonal-up {
  transform: rotate(-35deg) translate(-10px, 0);
  height: 30px;
}
.flow-connectors .diagonal-down {
  transform: rotate(35deg) translate(10px, 0);
  height: 30px;
}
.flow-connectors .straight {
  height: 24px;
}

.flow-workers {
  display: flex;
  gap: 10px;
  width: 100%;
  justify-content: center;
}

.worker-node {
  flex: 1;
  max-width: 150px;
}

.active-pulse {
  border-color: rgba(40, 184, 135, 0.42);
  animation: borderPulse 2s infinite ease-in-out;
}

@keyframes borderPulse {
  0%, 100% { border-color: rgba(40, 184, 135, 0.32); box-shadow: 0 0 5px rgba(40, 184, 135, 0.12); }
  50% { border-color: oklch(0.74 0.16 150); box-shadow: 0 0 10px rgba(40, 184, 135, 0.32); }
}

/* Tab 2 Chat Simulator */
.chat-sim {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 10px 0;
  flex-grow: 1;
}

.chat-bubble {
  max-width: 85%;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.02);
}

.chat-bubble.left {
  align-self: flex-start;
  border-left: 2px solid oklch(0.75 0.18 190);
}

.chat-bubble.right {
  align-self: flex-end;
  border-right: 2px solid oklch(0.76 0.16 145);
  background: rgba(40, 184, 135, 0.07);
}

.chat-sender {
  font-size: 0.7rem;
  font-weight: 600;
  display: block;
  margin-bottom: 2px;
}

.chat-text {
  font-size: 0.75rem;
  color: #e2e2e9;
  line-height: 1.35;
}

/* Tab 3 Synthesis Steps */
.synthesis-steps {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 10px 0;
}

.synth-step {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  background: rgba(255, 255, 255, 0.02);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.02);
  font-size: 0.75rem;
}

.synth-step .step-icon {
  font-weight: bold;
}

.synth-step.done {
  border-left: 2px solid oklch(0.76 0.18 145);
}
.synth-step.done .step-icon {
  color: oklch(0.76 0.18 145);
}

.synth-step.review {
  border-left: 2px solid oklch(0.82 0.16 85);
}
.synth-step.review .step-icon {
  color: oklch(0.82 0.16 85);
}

.synth-step.fix {
  border-left: 2px solid oklch(0.75 0.18 190);
}
.synth-step.fix .step-icon {
  color: oklch(0.75 0.18 190);
}

.synth-step.final {
  border-left: 2px solid oklch(0.76 0.16 145);
}
.synth-step.final .step-icon {
  color: oklch(0.76 0.16 145);
  animation: pulseColor 1.5s infinite ease-in-out;
}

@keyframes pulseColor {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* ==========================================================================
   Patterns Section
   ========================================================================== */
.patterns-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
  margin-bottom: 96px;
}

.pattern-card {
  background: var(--bg-card);
  border: 1px solid var(--border-muted);
  border-radius: var(--radius-lg);
  padding: 40px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
  backdrop-filter: blur(8px);
}

.pattern-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: transparent;
  transition: background var(--transition-normal);
}

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

.pattern-card:nth-child(1):hover::before { background: var(--gradient-purple); }
.pattern-card:nth-child(2):hover::before { background: var(--gradient-cyan); }
.pattern-card:nth-child(3):hover::before { background: var(--accent-green); }

.pattern-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  margin-bottom: 24px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
}

.pattern-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.pattern-icon {
  width: 24px;
  height: 24px;
}

.pattern-card h3 {
  margin-bottom: 16px;
  color: #ffffff;
}

.pattern-card p {
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ==========================================================================
   Engine Highlights
   ========================================================================== */
.highlights-container {
  border-top: 1px solid var(--border-muted);
  padding-top: 96px;
}

.highlight-section-title {
  font-size: 1.8rem;
  margin-bottom: 48px;
  text-align: center;
}

.highlights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
}

.highlight-item {
  display: flex;
  gap: 20px;
}

.highlight-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: rgba(40, 184, 135, 0.1);
  border: 1px solid rgba(40, 184, 135, 0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  color: oklch(0.78 0.15 150);
}

.highlight-item h4 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: #ffffff;
}

.highlight-item p {
  font-size: 0.9rem;
  line-height: 1.5;
}

/* ==========================================================================
   Architecture Section
   ========================================================================== */
.arch-layout {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 48px;
  align-items: center;
}

.arch-visual {
  background: rgba(0, 0, 0, 0.15);
  border: 1px solid var(--border-muted);
  padding: 40px;
  border-radius: var(--radius-lg);
  overflow-x: auto;
}

.crate-diagram {
  display: flex;
  align-items: center;
  gap: 20px;
  min-width: 600px;
  justify-content: space-between;
}

.diagram-column {
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: center;
  flex: 1;
}

.crate-node {
  background: rgba(15, 24, 22, 0.9);
  border: 1.5px solid var(--border-muted);
  border-radius: var(--radius-md);
  padding: 16px;
  width: 100%;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  box-shadow: var(--shadow-sm);
}

.crate-node:hover {
  transform: scale(1.03);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

.crate-node.active-node {
  border-color: oklch(0.78 0.15 150);
  background: rgba(40, 184, 135, 0.1);
  box-shadow: var(--shadow-glow-purple);
}

.crate-tag {
  display: inline-block;
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.crate-node h4 {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #ffffff;
  margin-bottom: 4px;
}

.crate-node p {
  font-size: 0.75rem;
  line-height: 1.3;
}

.arrow-down {
  width: 2px;
  height: 20px;
  background: linear-gradient(to bottom, var(--border-glow), var(--border-muted));
  position: relative;
}

.arrow-down::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 6px solid var(--border-muted);
}

.arrow-right-large {
  width: 24px;
  height: 2px;
  background: var(--border-muted);
  position: relative;
}

.arrow-right-large::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  border-left: 6px solid var(--border-muted);
}

.row-split {
  flex: 1.2;
}

.split-target {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
}

.split-target .crate-node {
  padding: 10px 14px;
}

/* Details Panel styling */
.arch-details {
  background: var(--bg-card);
  border: 1px solid var(--border-muted);
  border-radius: var(--radius-lg);
  padding: 40px;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  backdrop-filter: blur(8px);
}

.arch-details h3 {
  margin-bottom: 16px;
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 1.35rem;
}

.arch-details p {
  font-size: 0.95rem;
  line-height: 1.6;
}

.crate-meta-info {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

.crate-meta-info .meta-label {
  color: var(--text-muted);
}

.hidden {
  display: none !important;
}

/* ==========================================================================
   Quickstart Section
   ========================================================================== */
.steps-wrapper {
  display: flex;
  flex-direction: column;
  gap: 32px;
  margin-bottom: 80px;
}

.step-card {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-muted);
  border-radius: var(--radius-lg);
  padding: 40px;
  position: relative;
  backdrop-filter: blur(8px);
}

.step-badge {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(40, 184, 135, 0.07);
  border: 1.5px solid var(--border-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  color: oklch(0.78 0.15 150);
  box-shadow: var(--shadow-glow-purple);
}

.step-content h3 {
  margin-bottom: 12px;
  color: #ffffff;
}

.step-content p {
  margin-bottom: 24px;
  font-size: 1rem;
}

/* Code block wrapper with copy button */
.code-block-wrapper {
  position: relative;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.code-block-wrapper pre {
  padding: 20px 24px;
  overflow-x: auto;
  margin: 0;
}

.code-block-wrapper code {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: #e2e2e9;
  line-height: 1.5;
}

.copy-button {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  color: var(--text-muted);
  font-size: 0.75rem;
  padding: 6px 12px;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-sans);
  font-weight: 500;
}

.copy-button:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.2);
}

.copy-button.copied {
  background: oklch(0.35 0.1 145);
  color: #ffffff;
  border-color: oklch(0.5 0.15 145);
}

/* Feature flags container */
.flags-container {
  border-top: 1px solid var(--border-muted);
  padding-top: 80px;
}

.flags-container h3 {
  font-size: 1.5rem;
  color: #ffffff;
  margin-bottom: 32px;
}

.flags-table-wrapper {
  background: rgba(0, 0, 0, 0.15);
  border: 1px solid var(--border-muted);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.flags-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.flags-table th, .flags-table td {
  padding: 18px 24px;
}

.flags-table th {
  background: rgba(0, 0, 0, 0.2);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.9rem;
  color: #ffffff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.flags-table td {
  font-size: 0.9rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

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

.flags-table code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  background: rgba(255, 255, 255, 0.04);
  padding: 4px 8px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.03);
}

/* ==========================================================================
   Threat Model / Safety Section
   ========================================================================== */
.warning-banner {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  background: var(--gradient-warning);
  border: 1px solid rgba(255, 107, 107, 0.15);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin-bottom: 48px;
  box-shadow: 0 10px 40px rgba(255, 107, 107, 0.05);
}

.warning-icon-bg {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(255, 107, 107, 0.1);
  border: 1px solid rgba(255, 107, 107, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: oklch(0.65 0.2 25);
}

.warning-large-icon {
  width: 28px;
  height: 28px;
}

.warning-text {
  max-width: 900px;
}

.warning-heading {
  font-size: 1.8rem;
  color: #ffffff;
  margin-bottom: 12px;
}

.warning-sub {
  font-size: 1.05rem;
  line-height: 1.6;
}

.safety-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.safety-card {
  background: var(--bg-card);
  border: 1px solid var(--border-muted);
  border-radius: var(--radius-md);
  padding: 32px;
  backdrop-filter: blur(8px);
  transition: all var(--transition-normal);
}

.safety-card:hover {
  border-color: rgba(255, 107, 107, 0.2);
  background: var(--bg-card-hover);
}

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

.safety-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
}

.safety-card h3 {
  font-size: 1.15rem;
  color: #ffffff;
}

.safety-card p {
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ==========================================================================
   Call to Action (CTA) bottom Section
   ========================================================================== */
.cta-action-section {
  padding: 80px 0 120px 0;
}

.cta-container {
  display: flex;
  justify-content: center;
}

.cta-card {
  width: 100%;
  background: radial-gradient(circle at 100% 100%, rgba(40, 184, 135, 0.14) 0%, transparent 60%), var(--bg-card);
  border: 1px solid var(--border-muted);
  border-radius: var(--radius-xl);
  padding: 72px 40px;
  text-align: center;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-lg), var(--shadow-glow-purple);
  position: relative;
  overflow: hidden;
}

.cta-card::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(40, 184, 135, 0.07) 0%, transparent 60%);
  z-index: 0;
  pointer-events: none;
}

.cta-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin-bottom: 16px;
  color: #ffffff;
  position: relative;
  z-index: 1;
}

.cta-subtitle {
  font-size: 1.15rem;
  max-width: 600px;
  margin: 0 auto 40px auto;
  position: relative;
  z-index: 1;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  position: relative;
  z-index: 1;
  flex-wrap: wrap;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  border-top: 1px solid var(--border-muted);
  background: var(--bg-darker);
  padding: 64px 0;
}

.footer-container {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.footer-info {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-desc {
  font-size: 0.9rem;
  max-width: 400px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 32px;
  flex-wrap: wrap;
  gap: 20px;
}

.copyright {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-links a:hover {
  color: #ffffff;
}

/* ==========================================================================
   Responsive Media Queries
   ========================================================================== */

/* Tablet layouts (max 991px) */
@media (max-width: 991px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }
  
  .hero-text-content {
    margin: 0 auto;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .arch-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .arch-details {
    padding: 32px;
    text-align: center;
  }
  
  .crate-diagram {
    justify-content: center;
  }
}

/* Mobile responsive (max 768px) */
@media (max-width: 768px) {
  .section {
    padding: 80px 0;
  }
  
  .navbar-container {
    padding: 0 16px;
  }
  
  /* Mobile menu logic toggled by JS */
  .mobile-menu-toggle {
    display: flex;
  }
  
  .nav-links {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background-color: var(--bg-darker);
    border-bottom: 1px solid var(--border-muted);
    flex-direction: column;
    padding: 40px 0;
    gap: 24px;
    transform: translateY(-150%);
    opacity: 0;
    transition: all var(--transition-normal);
    pointer-events: none;
    z-index: 999;
  }
  
  .nav-links.mobile-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  
  .nav-actions {
    display: none; /* Hide double CTA on mobile header */
  }
  
  .hero-section {
    padding-top: 140px;
    padding-bottom: 80px;
  }

  .container {
    padding: 0 20px;
  }

  .hero-container,
  .hero-text-content,
  .hero-visual,
  .terminal {
    min-width: 0;
  }

  .hero-title {
    font-size: clamp(2.25rem, 11vw, 3rem);
    overflow-wrap: anywhere;
  }

  .hero-subtitle {
    font-size: 1.05rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    max-width: 280px;
    margin: 0 auto;
  }

  .hero-buttons .btn {
    width: 100%;
  }

  .terminal {
    max-width: 100%;
  }

  .terminal-content {
    padding: 18px;
    overflow: hidden;
  }

  .tab-btn {
    min-width: 0;
    font-size: 0.76rem;
  }

  .console-line {
    overflow-wrap: anywhere;
  }

  .flow-workers {
    flex-direction: column;
    align-items: center;
  }

  .worker-node {
    max-width: 240px;
  }

  .flow-connectors {
    display: none;
  }

  .chat-bubble {
    max-width: 100%;
  }

  .arch-visual {
    padding: 20px;
    max-width: 100%;
  }

  .crate-diagram {
    min-width: 0;
    width: 100%;
    flex-direction: column;
    gap: 16px;
  }

  .diagram-column {
    width: 100%;
  }

  .arrow-right-large,
  .arrow-down {
    display: none;
  }
  
  .step-card {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 28px 20px;
    text-align: center;
    min-width: 0;
  }

  .step-content,
  .code-block-wrapper,
  .code-block-wrapper pre {
    min-width: 0;
    max-width: 100%;
  }

  .code-block-wrapper {
    text-align: left;
  }

  .code-block-wrapper pre {
    padding: 18px 16px;
  }
  
  .step-badge {
    margin: 0 auto;
  }
  
  .flags-table th:nth-child(3),
  .flags-table td:nth-child(3) {
    display: none; /* Hide description column on mobile table for width */
  }
  
  .warning-banner {
    flex-direction: column;
    padding: 32px 20px;
    text-align: center;
    align-items: center;
  }
  
  .warning-icon-bg {
    margin-bottom: 16px;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}