/* Persona Design System - Adaptive Context System */

:root {
  /* Base Palette - Adaptable */
  --persona-neutral-10: #fafafa;
  --persona-neutral-50: #f5f5f5;
  --persona-neutral-100: #eeeeee;
  --persona-neutral-200: #e0e0e0;
  --persona-neutral-300: #bdbdbd;
  --persona-neutral-400: #9e9e9e;
  --persona-neutral-500: #757575;
  --persona-neutral-600: #616161;
  --persona-neutral-700: #424242;
  --persona-neutral-800: #303030;
  --persona-neutral-900: #212121;
  
  /* Dynamic Colors - Context Aware */
  --persona-primary: var(--persona-professional-primary, #1976d2);
  --persona-secondary: var(--persona-professional-secondary, #dc004e);
  --persona-accent: var(--persona-professional-accent, #00bcd4);
  --persona-surface: var(--persona-professional-surface, #ffffff);
  --persona-background: var(--persona-professional-background, #fafafa);
  
  /* Professional Context (Default) */
  --persona-professional-primary: #1976d2;
  --persona-professional-secondary: #dc004e;
  --persona-professional-accent: #00bcd4;
  --persona-professional-surface: #ffffff;
  --persona-professional-background: #fafafa;
  --persona-professional-gradient: linear-gradient(135deg, #1976d2 0%, #00bcd4 100%);
  
  /* Creative Context */
  --persona-creative-primary: #e91e63;
  --persona-creative-secondary: #ff9800;
  --persona-creative-accent: #9c27b0;
  --persona-creative-surface: #fafafa;
  --persona-creative-background: #fff3e0;
  --persona-creative-gradient: linear-gradient(135deg, #e91e63 0%, #ff9800 100%);
  
  /* Technical Context */
  --persona-technical-primary: #2e7d32;
  --persona-technical-secondary: #ff6f00;
  --persona-technical-accent: #1976d2;
  --persona-technical-surface: #f1f3f4;
  --persona-technical-background: #e8f5e8;
  --persona-technical-gradient: linear-gradient(135deg, #2e7d32 0%, #1976d2 100%);
  
  /* Typography System */
  --persona-font-display: var(--persona-context-display, 'Inter Variable', sans-serif);
  --persona-font-body: var(--persona-context-body, 'Inter', sans-serif);
  --persona-font-mono: 'JetBrains Mono Variable', 'SF Mono', monospace;
  
  /* Professional Typography */
  --persona-professional-display: 'Inter Variable', 'SF Pro Display', sans-serif;
  --persona-professional-body: 'Inter', '-apple-system', sans-serif;
  
  /* Creative Typography */
  --persona-creative-display: 'Fraunces Variable', 'Playfair Display', serif;
  --persona-creative-body: 'Source Sans Pro', 'Inter', sans-serif;
  
  /* Technical Typography */
  --persona-technical-display: 'JetBrains Mono Variable', 'SF Mono', monospace;
  --persona-technical-body: 'SF Pro Text', 'Inter', sans-serif;
  
  /* Type Scale - Material Design Inspired */
  --persona-text-caption: 0.75rem;     /* 12px */
  --persona-text-body-2: 0.875rem;     /* 14px */
  --persona-text-body-1: 1rem;         /* 16px */
  --persona-text-subtitle-2: 1.125rem; /* 18px */
  --persona-text-subtitle-1: 1.25rem;  /* 20px */
  --persona-text-h6: 1.5rem;           /* 24px */
  --persona-text-h5: 1.75rem;          /* 28px */
  --persona-text-h4: 2.125rem;         /* 34px */
  --persona-text-h3: 2.5rem;           /* 40px */
  --persona-text-h2: 3rem;             /* 48px */
  --persona-text-h1: 3.5rem;           /* 56px */
  
  /* Spacing Scale - 8px grid */
  --persona-space-1: 0.25rem;  /* 4px */
  --persona-space-2: 0.5rem;   /* 8px */
  --persona-space-3: 0.75rem;  /* 12px */
  --persona-space-4: 1rem;     /* 16px */
  --persona-space-5: 1.25rem;  /* 20px */
  --persona-space-6: 1.5rem;   /* 24px */
  --persona-space-8: 2rem;     /* 32px */
  --persona-space-10: 2.5rem;  /* 40px */
  --persona-space-12: 3rem;    /* 48px */
  --persona-space-16: 4rem;    /* 64px */
  --persona-space-20: 5rem;    /* 80px */
  --persona-space-24: 6rem;    /* 96px */
  
  /* Elevation & Shadows */
  --persona-shadow-1: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --persona-shadow-2: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --persona-shadow-3: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --persona-shadow-4: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Border Radius */
  --persona-radius-sm: 0.25rem;
  --persona-radius-md: 0.5rem;
  --persona-radius-lg: 0.75rem;
  --persona-radius-xl: 1rem;
  --persona-radius-2xl: 1.5rem;
  --persona-radius-full: 9999px;
  
  /* Transitions */
  --persona-transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --persona-transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --persona-transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Layout */
  --persona-container-max: 1200px;
  --persona-container-padding: clamp(1rem, 5vw, 2rem);
}

/* Context Switching */
[data-persona="professional"] {
  --persona-context-display: var(--persona-professional-display);
  --persona-context-body: var(--persona-professional-body);
  --persona-primary: var(--persona-professional-primary);
  --persona-secondary: var(--persona-professional-secondary);
  --persona-accent: var(--persona-professional-accent);
  --persona-surface: var(--persona-professional-surface);
  --persona-background: var(--persona-professional-background);
  --persona-gradient: var(--persona-professional-gradient);
}

[data-persona="creative"] {
  --persona-context-display: var(--persona-creative-display);
  --persona-context-body: var(--persona-creative-body);
  --persona-primary: var(--persona-creative-primary);
  --persona-secondary: var(--persona-creative-secondary);
  --persona-accent: var(--persona-creative-accent);
  --persona-surface: var(--persona-creative-surface);
  --persona-background: var(--persona-creative-background);
  --persona-gradient: var(--persona-creative-gradient);
}

[data-persona="technical"] {
  --persona-context-display: var(--persona-technical-display);
  --persona-context-body: var(--persona-technical-body);
  --persona-primary: var(--persona-technical-primary);
  --persona-secondary: var(--persona-technical-secondary);
  --persona-accent: var(--persona-technical-accent);
  --persona-surface: var(--persona-technical-surface);
  --persona-background: var(--persona-technical-background);
  --persona-gradient: var(--persona-technical-gradient);
}

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

html {
  font-size: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--persona-font-body);
  font-size: var(--persona-text-body-1);
  line-height: 1.6;
  color: var(--persona-neutral-800);
  background-color: var(--persona-background);
  transition: all var(--persona-transition-slow);
}

/* Container */
.persona-container {
  width: 100%;
  max-width: var(--persona-container-max);
  margin: 0 auto;
  padding: 0 var(--persona-container-padding);
}

/* Header */
.persona-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--persona-neutral-200);
  transition: all var(--persona-transition-base);
}

.persona-nav {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  align-items: center;
  padding: var(--persona-space-4) 0;
  gap: var(--persona-space-4);
}

.persona-logo {
  display: flex;
  align-items: center;
  gap: var(--persona-space-2);
  font-family: var(--persona-font-display);
  font-weight: 700;
  font-size: var(--persona-text-h6);
  color: var(--persona-primary);
  text-decoration: none;
}

.persona-logo-icon {
  width: 2rem;
  height: 2rem;
  color: var(--persona-primary);
}

.persona-nav-center {
  display: flex;
  justify-content: center;
  gap: var(--persona-space-6);
}

.persona-nav-link {
  font-size: var(--persona-text-body-1);
  font-weight: 500;
  color: var(--persona-neutral-700);
  text-decoration: none;
  padding: var(--persona-space-2) var(--persona-space-3);
  border-radius: var(--persona-radius-md);
  transition: all var(--persona-transition-fast);
  position: relative;
}

.persona-nav-link:hover {
  color: var(--persona-primary);
  background-color: var(--persona-neutral-50);
}

.persona-nav-end {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--persona-space-4);
}

/* Persona Selector */
.persona-selector {
  position: relative;
}

.persona-selector-btn {
  display: flex;
  align-items: center;
  gap: var(--persona-space-2);
  padding: var(--persona-space-2) var(--persona-space-3);
  background: var(--persona-surface);
  border: 1px solid var(--persona-neutral-200);
  border-radius: var(--persona-radius-md);
  font-size: var(--persona-text-body-2);
  font-weight: 500;
  color: var(--persona-neutral-700);
  cursor: pointer;
  transition: all var(--persona-transition-fast);
}

.persona-selector-btn:hover {
  border-color: var(--persona-primary);
}

.persona-chevron {
  width: 1rem;
  height: 1rem;
  transition: transform var(--persona-transition-fast);
}

.persona-selector-btn[aria-expanded="true"] .persona-chevron {
  transform: rotate(180deg);
}

.persona-dropdown {
  position: absolute;
  top: calc(100% + var(--persona-space-1));
  right: 0;
  min-width: 240px;
  background: var(--persona-surface);
  border: 1px solid var(--persona-neutral-200);
  border-radius: var(--persona-radius-lg);
  box-shadow: var(--persona-shadow-3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--persona-transition-fast);
  z-index: 1000;
}

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

.persona-option {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: var(--persona-space-3) var(--persona-space-4);
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
  transition: background-color var(--persona-transition-fast);
}

.persona-option:hover {
  background-color: var(--persona-neutral-50);
}

.persona-option:first-child {
  border-radius: var(--persona-radius-lg) var(--persona-radius-lg) 0 0;
}

.persona-option:last-child {
  border-radius: 0 0 var(--persona-radius-lg) var(--persona-radius-lg);
}

.persona-option-name {
  font-weight: 600;
  color: var(--persona-neutral-800);
  margin-bottom: var(--persona-space-1);
}

.persona-option-desc {
  font-size: var(--persona-text-caption);
  color: var(--persona-neutral-500);
}

.persona-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  padding: var(--persona-space-2);
  border-radius: var(--persona-radius-sm);
  cursor: pointer;
}

.persona-menu-toggle span {
  width: 20px;
  height: 2px;
  background: var(--persona-neutral-700);
  border-radius: 1px;
  transition: all var(--persona-transition-fast);
}

/* Hero Section */
.persona-hero {
  padding: var(--persona-space-20) 0;
  background: linear-gradient(135deg, var(--persona-background) 0%, var(--persona-surface) 100%);
  position: relative;
  overflow: hidden;
}

.persona-hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: var(--persona-gradient);
  opacity: 0.05;
  border-radius: 50% 0 0 50%;
  transform: translateX(25%);
}

.persona-hero-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--persona-space-12);
  align-items: center;
  position: relative;
  z-index: 1;
}

.persona-hero-title {
  font-family: var(--persona-font-display);
  font-size: var(--persona-text-h1);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--persona-space-6);
}

.persona-hero-accent {
  display: block;
  font-size: var(--persona-text-subtitle-1);
  font-weight: 500;
  color: var(--persona-primary);
  margin-bottom: var(--persona-space-2);
}

.persona-hero-main {
  display: block;
  background: var(--persona-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.persona-hero-subtitle {
  font-size: var(--persona-text-subtitle-1);
  line-height: 1.6;
  color: var(--persona-neutral-600);
  max-width: 32rem;
  margin-bottom: var(--persona-space-8);
}

.persona-hero-actions {
  display: flex;
  gap: var(--persona-space-4);
  flex-wrap: wrap;
}

/* Buttons */
.persona-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--persona-space-2);
  padding: var(--persona-space-3) var(--persona-space-6);
  font-size: var(--persona-text-body-1);
  font-weight: 600;
  border-radius: var(--persona-radius-lg);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--persona-transition-fast);
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.persona-btn-primary {
  background: var(--persona-gradient);
  color: white;
  box-shadow: var(--persona-shadow-2);
}

.persona-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--persona-shadow-3);
}

.persona-btn-secondary {
  background: var(--persona-surface);
  color: var(--persona-neutral-800);
  border-color: var(--persona-neutral-200);
}

.persona-btn-secondary:hover {
  background: var(--persona-neutral-50);
  border-color: var(--persona-primary);
}

.persona-btn-outline {
  background: transparent;
  color: var(--persona-primary);
  border-color: var(--persona-primary);
}

.persona-btn-outline:hover {
  background: var(--persona-primary);
  color: white;
}

.persona-btn-large {
  padding: var(--persona-space-4) var(--persona-space-8);
  font-size: var(--persona-text-subtitle-2);
}

.persona-btn-icon {
  width: 1.25em;
  height: 1.25em;
}

/* Hero Visual */
.persona-hero-visual {
  display: flex;
  justify-content: center;
  margin-top: var(--persona-space-8);
}

.persona-context-demo {
  background: var(--persona-surface);
  border-radius: var(--persona-radius-2xl);
  box-shadow: var(--persona-shadow-4);
  padding: var(--persona-space-6);
  max-width: 600px;
  width: 100%;
}

.persona-demo-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--persona-space-6);
  padding-bottom: var(--persona-space-4);
  border-bottom: 1px solid var(--persona-neutral-100);
}

.persona-demo-title {
  font-weight: 600;
  color: var(--persona-neutral-800);
}

.persona-demo-status {
  display: flex;
  align-items: center;
  gap: var(--persona-space-2);
  font-size: var(--persona-text-body-2);
  color: var(--persona-accent);
}

.persona-status-dot {
  width: 8px;
  height: 8px;
  background: var(--persona-accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

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

.persona-flow-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--persona-space-2);
}

.persona-flow-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--persona-space-2);
  padding: var(--persona-space-3);
  background: var(--persona-neutral-50);
  border-radius: var(--persona-radius-lg);
  min-width: 80px;
  opacity: 0.5;
  transition: all var(--persona-transition-base);
}

.persona-flow-item[data-step="1"] {
  opacity: 1;
  animation: flow-step 4s infinite;
}

@keyframes flow-step {
  0%, 25% { opacity: 1; background: var(--persona-primary); color: white; }
  26%, 100% { opacity: 0.5; background: var(--persona-neutral-50); color: inherit; }
}

.persona-flow-item[data-step="2"] {
  animation: flow-step 4s infinite 1s;
}

.persona-flow-item[data-step="3"] {
  animation: flow-step 4s infinite 2s;
}

.persona-flow-item[data-step="4"] {
  animation: flow-step 4s infinite 3s;
}

.persona-flow-icon {
  font-size: var(--persona-text-h6);
}

.persona-flow-arrow {
  width: 2rem;
  height: 2px;
  background: var(--persona-neutral-300);
  position: relative;
  border-radius: 1px;
}

.persona-flow-arrow::after {
  content: '';
  position: absolute;
  right: -4px;
  top: -3px;
  width: 0;
  height: 0;
  border-left: 8px solid var(--persona-neutral-300);
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
}

/* Capabilities Section */
.persona-capabilities {
  padding: var(--persona-space-20) 0;
  background: var(--persona-surface);
}

.persona-section-header {
  text-align: center;
  margin-bottom: var(--persona-space-16);
}

.persona-section-title {
  font-family: var(--persona-font-display);
  font-size: var(--persona-text-h2);
  font-weight: 700;
  color: var(--persona-neutral-800);
  margin-bottom: var(--persona-space-4);
}

.persona-section-subtitle {
  font-size: var(--persona-text-subtitle-1);
  color: var(--persona-neutral-600);
  max-width: 40rem;
  margin: 0 auto;
}

.persona-capability-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--persona-space-8);
}

.persona-capability-card {
  padding: var(--persona-space-8);
  background: var(--persona-background);
  border: 1px solid var(--persona-neutral-100);
  border-radius: var(--persona-radius-2xl);
  transition: all var(--persona-transition-base);
}

.persona-capability-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--persona-shadow-3);
  border-color: var(--persona-primary);
}

.persona-capability-header {
  display: flex;
  align-items: center;
  gap: var(--persona-space-4);
  margin-bottom: var(--persona-space-4);
}

.persona-capability-icon {
  width: 3rem;
  height: 3rem;
  background: var(--persona-gradient);
  border-radius: var(--persona-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.persona-capability-icon svg {
  width: 1.5rem;
  height: 1.5rem;
  color: white;
}

.persona-capability-title {
  font-family: var(--persona-font-display);
  font-size: var(--persona-text-h6);
  font-weight: 600;
  color: var(--persona-neutral-800);
}

.persona-capability-description {
  color: var(--persona-neutral-600);
  line-height: 1.6;
  margin-bottom: var(--persona-space-4);
}

.persona-capability-features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--persona-space-2);
}

.persona-feature-tag {
  padding: var(--persona-space-1) var(--persona-space-3);
  background: var(--persona-neutral-100);
  color: var(--persona-neutral-700);
  border-radius: var(--persona-radius-full);
  font-size: var(--persona-text-caption);
  font-weight: 500;
}

/* Implementation Section */
.persona-implementation {
  padding: var(--persona-space-20) 0;
  background: var(--persona-neutral-50);
}

.persona-implementation-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--persona-space-12);
  align-items: center;
}

.persona-implementation-title {
  font-family: var(--persona-font-display);
  font-size: var(--persona-text-h2);
  font-weight: 700;
  color: var(--persona-neutral-800);
  margin-bottom: var(--persona-space-4);
}

.persona-implementation-description {
  font-size: var(--persona-text-subtitle-2);
  color: var(--persona-neutral-600);
  line-height: 1.6;
  margin-bottom: var(--persona-space-8);
  max-width: 32rem;
}

.persona-implementation-stats {
  display: flex;
  gap: var(--persona-space-8);
}

.persona-stat {
  text-align: center;
}

.persona-stat-number {
  font-family: var(--persona-font-display);
  font-size: var(--persona-text-h3);
  font-weight: 700;
  color: var(--persona-primary);
  line-height: 1;
}

.persona-stat-label {
  font-size: var(--persona-text-body-2);
  color: var(--persona-neutral-600);
  margin-top: var(--persona-space-1);
}

.persona-code-window {
  background: var(--persona-neutral-900);
  border-radius: var(--persona-radius-xl);
  overflow: hidden;
  box-shadow: var(--persona-shadow-4);
}

.persona-code-header {
  display: flex;
  align-items: center;
  padding: var(--persona-space-4);
  background: rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.persona-code-controls {
  display: flex;
  gap: var(--persona-space-2);
  margin-right: var(--persona-space-4);
}

.persona-code-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.persona-code-dot-red { background: #ff5f56; }
.persona-code-dot-yellow { background: #ffbd2e; }
.persona-code-dot-green { background: #27ca3f; }

.persona-code-title {
  font-family: var(--persona-font-mono);
  font-size: var(--persona-text-body-2);
  color: rgba(255, 255, 255, 0.8);
}

.persona-code-content {
  padding: var(--persona-space-6);
  font-family: var(--persona-font-mono);
  font-size: var(--persona-text-body-2);
  line-height: 1.6;
  color: #e4e4e7;
  overflow-x: auto;
}

/* Ecosystem Section */
.persona-ecosystem {
  padding: var(--persona-space-20) 0;
  background: var(--persona-surface);
}

.persona-ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--persona-space-8);
}

.persona-ecosystem-item {
  text-align: center;
  padding: var(--persona-space-6);
}

.persona-ecosystem-icon {
  font-size: var(--persona-text-h1);
  margin-bottom: var(--persona-space-4);
}

.persona-ecosystem-title {
  font-family: var(--persona-font-display);
  font-size: var(--persona-text-h6);
  font-weight: 600;
  color: var(--persona-neutral-800);
  margin-bottom: var(--persona-space-3);
}

.persona-ecosystem-description {
  color: var(--persona-neutral-600);
  line-height: 1.6;
}

/* CTA Section */
.persona-cta {
  padding: var(--persona-space-20) 0;
  background: var(--persona-gradient);
  text-align: center;
  color: white;
}

.persona-cta-title {
  font-family: var(--persona-font-display);
  font-size: var(--persona-text-h2);
  font-weight: 700;
  margin-bottom: var(--persona-space-4);
}

.persona-cta-description {
  font-size: var(--persona-text-subtitle-1);
  margin-bottom: var(--persona-space-8);
  opacity: 0.9;
}

.persona-cta-actions {
  display: flex;
  gap: var(--persona-space-4);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--persona-space-6);
}

.persona-cta .persona-btn-primary {
  background: white;
  color: var(--persona-primary);
}

.persona-cta .persona-btn-outline {
  border-color: white;
  color: white;
}

.persona-cta .persona-btn-outline:hover {
  background: white;
  color: var(--persona-primary);
}

.persona-cta-note {
  font-size: var(--persona-text-body-2);
  opacity: 0.8;
}

/* Footer */
.persona-footer {
  padding: var(--persona-space-16) 0 var(--persona-space-8);
  background: var(--persona-neutral-900);
  color: rgba(255, 255, 255, 0.8);
}

.persona-footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--persona-space-12);
  margin-bottom: var(--persona-space-12);
}

.persona-footer-brand .persona-logo {
  color: white;
  margin-bottom: var(--persona-space-4);
}

.persona-footer-description {
  line-height: 1.6;
  margin-bottom: var(--persona-space-6);
  opacity: 0.7;
}

.persona-footer-social {
  display: flex;
  gap: var(--persona-space-3);
}

.persona-social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--persona-radius-md);
  color: rgba(255, 255, 255, 0.7);
  transition: all var(--persona-transition-fast);
}

.persona-social-link:hover {
  background: var(--persona-primary);
  color: white;
}

.persona-social-link svg {
  width: 1.25rem;
  height: 1.25rem;
}

.persona-footer-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--persona-space-8);
}

.persona-footer-title {
  font-size: var(--persona-text-subtitle-2);
  font-weight: 600;
  color: white;
  margin-bottom: var(--persona-space-4);
}

.persona-footer-link {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  padding: var(--persona-space-1) 0;
  transition: color var(--persona-transition-fast);
}

.persona-footer-link:hover {
  color: white;
}

.persona-footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--persona-space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.persona-footer-legal {
  display: flex;
  align-items: center;
  gap: var(--persona-space-6);
  font-size: var(--persona-text-body-2);
  opacity: 0.6;
}

.persona-badge {
  padding: var(--persona-space-1) var(--persona-space-3);
  background: var(--persona-primary);
  color: white;
  border-radius: var(--persona-radius-full);
  font-size: var(--persona-text-caption);
  font-weight: 600;
}

/* Responsive Design */
@media (min-width: 768px) {
  .persona-hero-content {
    grid-template-columns: 1fr 1fr;
  }
  
  .persona-hero-visual {
    margin-top: 0;
  }
  
  .persona-implementation-content {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .persona-nav {
    grid-template-columns: 1fr auto;
  }
  
  .persona-nav-center {
    display: none;
  }
  
  .persona-menu-toggle {
    display: flex;
  }
  
  .persona-flow-container {
    flex-direction: column;
    gap: var(--persona-space-4);
  }
  
  .persona-flow-arrow {
    width: 2px;
    height: 2rem;
    transform: rotate(90deg);
  }
  
  .persona-flow-arrow::after {
    top: -4px;
    right: -3px;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 8px solid var(--persona-neutral-300);
    border-bottom: none;
  }
  
  .persona-implementation-stats {
    justify-content: center;
  }
  
  .persona-footer-content {
    grid-template-columns: 1fr;
  }
  
  .persona-footer-bottom {
    flex-direction: column;
    gap: var(--persona-space-4);
    text-align: center;
  }
}

/* Focus States */
.persona-btn:focus,
.persona-nav-link:focus,
.persona-selector-btn:focus,
.persona-option:focus {
  outline: 2px solid var(--persona-primary);
  outline-offset: 2px;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}