/* =====================================================
   SHRIYO COGNITIVE INSTRUMENT DESIGN SYSTEM
   Version 3.0 | Cognitive Architecture | 2026
   ===================================================== */

/* CSS VARIABLES - COGNITIVE ARCHITECTURE - UNCHANGED */
:root {
    /* Base Architecture */
    --color-base: #f8fafc;
    --color-surface: #ffffff;
    --color-surface-alt: #f1f5f9;
    --color-surface-card: rgba(255, 255, 255, 0.94);
    
    /* Cognitive Color System */
    --color-cognitive-dark: #0a291e;
    --color-cognitive-primary: #1e5c46;
    --color-cognitive-light: #2e7d5f;
    --color-cognitive-subtle: rgba(30, 92, 70, 0.08);
    --color-cognitive-border: rgba(30, 92, 70, 0.15);
    
    /* Authority Color System */
    --color-authority-dark: #131f3a;
    --color-authority-primary: #2d3b6d;
    --color-authority-light: #3c4a7a;
    --color-authority-subtle: rgba(45, 59, 109, 0.08);
    
    /* Signal Colors */
    --color-signal-negative: #b91c1c;
    --color-signal-positive: #059669;
    --color-signal-insight: #7c3aed;
    --color-signal-warning: #dc2626;
    
    /* Text Hierarchy */
    --color-text-primary: #111827;
    --color-text-secondary: #374151;
    --color-text-tertiary: #6b7280;
    --color-text-disabled: #9ca3af;
    
    /* Border System */
    --color-border-subtle: #e5e7eb;
    --color-border-medium: #d1d5db;
    --color-border-strong: #9ca3af;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'SF Mono', 'Cascadia Mono', 'Roboto Mono', monospace;
    
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing System */
    --space-unit: 1rem;
    --space-xs: calc(var(--space-unit) * 0.25);
    --space-sm: calc(var(--space-unit) * 0.5);
    --space-md: var(--space-unit);
    --space-lg: calc(var(--space-unit) * 1.5);
    --space-xl: calc(var(--space-unit) * 2);
    --space-2xl: calc(var(--space-unit) * 3);
    --space-3xl: calc(var(--space-unit) * 4);
    --space-4xl: calc(var(--space-unit) * 6);
    --space-5xl: calc(var(--space-unit) * 8);
    --space-6xl: calc(var(--space-unit) * 12);
    
    /* Transitions */
    --transition-slow: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-medium: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: 0.1s cubic-bezier(0.16, 1, 0.3, 1);
    
    /* Shadows */
    --shadow-subtle: 0 1px 1px rgba(0, 0, 0, 0.02);
    --shadow-card: 0 2px 4px rgba(0, 0, 0, 0.03);
    --shadow-elevated: 0 4px 8px rgba(0, 0, 0, 0.04);
    
    /* Border Radius */
    --radius-sm: 2px;
    --radius-md: 4px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    --radius-2xl: 16px;
    
    /* Z-Index */
    --z-negative: -1;
    --z-base: 1;
    --z-sticky: 100;
    --z-header: 200;
    --z-overlay: 300;
    --z-max: 9999;
}

/* =====================================================
   RESET & BASE ARCHITECTURE - UNCHANGED
   ===================================================== */

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

html {
    font-size: 18px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -moz-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    font-family: var(--font-primary);
    font-weight: var(--font-weight-regular);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
}

/* Background Architecture */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 15% 50%, var(--color-cognitive-subtle) 0%, transparent 55%),
        radial-gradient(circle at 85% 30%, var(--color-authority-subtle) 0%, transparent 55%);
    z-index: var(--z-negative);
    pointer-events: none;
}

/* Typography Hierarchy */
h1, h2, h3, h4 {
    font-weight: var(--font-weight-semibold);
    line-height: 1.2;
    letter-spacing: -0.01em;
    margin-bottom: var(--space-lg);
    color: var(--color-text-primary);
}

h1 {
    font-size: 3rem;
    font-weight: var(--font-weight-bold);
    letter-spacing: -0.02em;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.75rem;
}

p {
    margin-bottom: var(--space-md);
    color: var(--color-text-secondary);
}

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

button {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    border: none;
    background: none;
    cursor: pointer;
    padding: 0;
    color: inherit;
}

/* Container System */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

/* Section Architecture */
section {
    padding: var(--space-6xl) 0;
    position: relative;
}

/* =====================================================
   COGNITIVE HEADER - INSTRUMENT INTERFACE - UNCHANGED
   ===================================================== */

.cognitive-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-header);
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border-subtle);
    padding: var(--space-sm) 0;
    transition: all var(--transition-medium);
}

.cognitive-header.header-scrolled {
    padding: var(--space-xs) 0;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-subtle);
}

.header-core {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-xl);
}

/* Instrument Logo */
.header-instrument {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    transition: transform var(--transition-medium);
}

.header-instrument:hover {
    transform: translateX(-2px);
}

.instrument-visual {
    width: 40px;
    height: 40px;
    position: relative;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    border: 1px solid var(--color-border-medium);
    transition: all var(--transition-medium);
    display: flex;
    align-items: center;
    justify-content: center;
}

.instrument-visual.small {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
}

.instrument-visual:hover {
    transform: rotate(90deg);
    border-color: var(--color-cognitive-primary);
    box-shadow: 0 2px 8px rgba(30, 92, 70, 0.1);
}

.instrument-geometry {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.geo-line {
    position: absolute;
    background: var(--color-cognitive-primary);
    border-radius: 1px;
}

.geo-primary {
    width: 20px;
    height: 2px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.geo-secondary {
    width: 2px;
    height: 20px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.geo-tertiary {
    width: 2px;
    height: 20px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(45deg);
    background: var(--color-authority-primary);
}

.instrument-label {
    font-weight: var(--font-weight-bold);
    font-size: 1.25rem;
    letter-spacing: 0.02em;
    color: var(--color-cognitive-dark);
    transition: all var(--transition-medium);
}

.header-instrument:hover .instrument-label {
    color: var(--color-cognitive-primary);
}

/* Cognitive Navigation */
.cognitive-nav {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-node {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    padding: var(--space-xs) 0;
    position: relative;
    min-height: 44px;
}

.node-index {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-cognitive-primary);
    opacity: 0.7;
    transition: all var(--transition-fast);
}

.node-label {
    transition: all var(--transition-fast);
}

.nav-node::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-cognitive-primary);
    transition: width var(--transition-medium);
}

.nav-node:hover {
    color: var(--color-text-primary);
}

.nav-node:hover .node-index {
    opacity: 1;
}

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

.nav-access {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: var(--color-cognitive-primary);
    color: white;
    border-radius: var(--radius-lg);
    font-weight: var(--font-weight-semibold);
    font-size: 0.875rem;
    transition: all var(--transition-medium);
    border: 1px solid transparent;
}

.nav-access:hover {
    background: var(--color-cognitive-light);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(30, 92, 70, 0.2);
}

.access-hint {
    font-size: 0.75rem;
    opacity: 0.9;
}

/* Mobile Toggle */
.mobile-cognitive-toggle {
    display: none;
    width: 44px;
    height: 44px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
    background: var(--color-surface);
    border: 1px solid var(--color-border-medium);
    border-radius: var(--radius-lg);
    transition: all var(--transition-medium);
    padding: var(--space-sm);
}

.toggle-line {
    width: 18px;
    height: 1px;
    background: var(--color-text-primary);
    transition: all var(--transition-medium);
    transform-origin: center;
}

.mobile-cognitive-toggle.active .toggle-line.line-1 {
    transform: translateY(7px) rotate(45deg);
    background: var(--color-cognitive-primary);
}

.mobile-cognitive-toggle.active .toggle-line.line-2 {
    opacity: 0;
    transform: scaleX(0);
}

.mobile-cognitive-toggle.active .toggle-line.line-3 {
    transform: translateY(-7px) rotate(-45deg);
    background: var(--color-cognitive-primary);
}

/* =====================================================
   MOBILE COGNITIVE OVERLAY - UNCHANGED
   ===================================================== */

.mobile-cognitive-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: var(--z-overlay);
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-slow);
}

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

.mobile-cognitive-panel {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    max-width: 360px;
    background: var(--color-surface);
    border-left: 1px solid var(--color-border-subtle);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.mobile-cognitive-overlay.active .mobile-cognitive-panel {
    transform: translateX(0);
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-xl);
    border-bottom: 1px solid var(--color-border-subtle);
    background: var(--color-surface);
    position: sticky;
    top: 0;
}

.panel-close {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface);
    border: 1px solid var(--color-border-medium);
    border-radius: var(--radius-lg);
    transition: all var(--transition-medium);
}

.panel-close:hover {
    border-color: var(--color-cognitive-primary);
    color: var(--color-cognitive-primary);
    transform: rotate(90deg);
}

.panel-nodes {
    flex: 1;
    padding: var(--space-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.panel-node {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    color: var(--color-text-primary);
    border-radius: var(--radius-lg);
    transition: all var(--transition-medium);
    background: var(--color-surface);
    border: 1px solid transparent;
}

.panel-node:hover {
    border-color: var(--color-cognitive-border);
    background: var(--color-cognitive-subtle);
    transform: translateX(4px);
}

.panel-index {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-cognitive-primary);
    min-width: 32px;
}

.panel-label {
    flex: 1;
    font-weight: var(--font-weight-medium);
    font-size: 1rem;
}

.panel-node i {
    color: var(--color-text-tertiary);
    font-size: 0.875rem;
    transition: all var(--transition-medium);
}

.panel-node:hover i {
    color: var(--color-cognitive-primary);
    transform: translateX(4px);
}

.panel-access {
    padding: var(--space-xl);
    border-top: 1px solid var(--color-border-subtle);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    background: var(--color-surface-alt);
}

.access-primary,
.access-secondary {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-lg);
    transition: all var(--transition-medium);
    text-decoration: none;
    min-height: 60px;
}

.access-primary {
    background: var(--color-cognitive-primary);
    color: white;
    border: 1px solid transparent;
}

.access-secondary {
    background: var(--color-surface);
    color: var(--color-cognitive-primary);
    border: 1px solid var(--color-cognitive-primary);
}

.access-primary:hover,
.access-secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-elevated);
}

.access-primary:hover {
    background: var(--color-cognitive-light);
}

.access-secondary:hover {
    background: var(--color-cognitive-subtle);
}

.access-content {
    flex: 1;
}

.access-main {
    display: block;
    font-weight: var(--font-weight-semibold);
    font-size: 1rem;
    margin-bottom: var(--space-xs);
}

.access-sub {
    display: block;
    font-size: 0.875rem;
    opacity: 0.9;
}

.panel-meta {
    padding: var(--space-xl);
    border-top: 1px solid var(--color-border-subtle);
    background: var(--color-surface);
}

.panel-meta p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
    font-size: 0.875rem;
    line-height: 1.5;
}

.meta-items {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    font-family: var(--font-mono);
}

/* =====================================================
   COGNITIVE POSITIONING - UPDATED
   ===================================================== */

.cognitive-positioning {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: calc(var(--space-6xl) + var(--space-3xl)) 0 var(--space-5xl);
    position: relative;
    overflow: hidden;
}

.positioning-content {
    position: relative;
    z-index: var(--z-base);
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-xl);
}

.positioning-marker {
    margin-bottom: var(--space-xl);
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.marker-text {
    font-size: 0.875rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-cognitive-primary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-family: var(--font-mono);
}

.marker-line {
    flex: 1;
    height: 1px;
    background: var(--color-cognitive-primary);
    opacity: 0.3;
}

.positioning-statement {
    font-size: 3rem;
    margin-bottom: var(--space-xl);
    line-height: 1.1;
}

.statement-line {
    display: block;
    opacity: 0;
    transform: translateY(20px);
    animation: statementReveal 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.statement-line:nth-child(2) { animation-delay: 0.1s; }
.statement-line:nth-child(3) { animation-delay: 0.2s; }

@keyframes statementReveal {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.positioning-description {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin-bottom: var(--space-xl);
    line-height: 1.6;
}

.positioning-actions {
    display: flex;
    gap: var(--space-xl);
    margin-bottom: var(--space-4xl);
    flex-wrap: wrap;
}

.action-primary,
.action-secondary {
    flex: 1;
    min-width: 280px;
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-lg) var(--space-xl);
    border-radius: var(--radius-xl);
    text-decoration: none;
    transition: all var(--transition-medium);
    border: 1px solid transparent;
}

.action-primary {
    background: var(--color-cognitive-primary);
    color: white;
}

.action-secondary {
    background: var(--color-surface);
    border-color: var(--color-cognitive-primary);
    color: var(--color-cognitive-primary);
}

.action-icon {
    font-size: 1.5rem;
    transition: transform var(--transition-medium);
}

.action-content {
    flex: 1;
}

.action-title {
    display: block;
    font-weight: var(--font-weight-semibold);
    font-size: 1.125rem;
    margin-bottom: var(--space-xs);
}

.action-subtitle {
    display: block;
    font-size: 0.875rem;
    opacity: 0.9;
}

.action-primary:hover {
    background: var(--color-cognitive-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(30, 92, 70, 0.15);
}

.action-secondary:hover {
    background: var(--color-cognitive-subtle);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.action-primary:hover .action-icon,
.action-secondary:hover .action-icon {
    transform: scale(1.1);
}

.positioning-progression {
    display: inline-flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: var(--color-surface-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-medium);
    cursor: pointer;
    transition: all var(--transition-medium);
}

.positioning-progression:hover {
    border-color: var(--color-cognitive-primary);
    transform: translateX(8px);
}

.progression-indicator {
    width: 40px;
    height: 1px;
    background: var(--color-border-medium);
    position: relative;
    overflow: hidden;
}

.progression-indicator::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--color-cognitive-primary);
    animation: progression 2s ease-in-out infinite;
}

@keyframes progression {
    0% { left: -100%; }
    100% { left: 100%; }
}

.progression-label {
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
}

/* =====================================================
   SECTION IDENTIFIER - UNCHANGED
   ===================================================== */

.section-identifier {
    margin-bottom: var(--space-4xl);
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.identifier-number {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-cognitive-primary);
    letter-spacing: 0.1em;
}

.identifier-line {
    flex: 1;
    height: 1px;
    background: var(--color-border-medium);
}

/* =====================================================
   COGNITIVE FRACTURE - UPDATED CONTENT
   ===================================================== */

.cognitive-fracture {
    background-color: var(--color-base);
}

.fracture-title {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.fracture-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-3xl);
}

.fracture-analysis {
    max-width: 900px;
    margin: 0 auto;
}

.analysis-container {
    background: var(--color-surface-card);
    border: 1px solid var(--color-border-medium);
    border-radius: var(--radius-2xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-card);
}

.analysis-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
    gap: var(--space-md);
}

.analysis-label {
    font-size: 0.875rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-cognitive-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-family: var(--font-mono);
}

.analysis-bias {
    font-size: 0.75rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-signal-warning);
    background: rgba(220, 38, 38, 0.1);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-full);
    border: 1px solid rgba(220, 38, 38, 0.2);
}

.analysis-statement {
    font-size: 1.75rem;
    color: var(--color-text-primary);
    margin-bottom: var(--space-2xl);
    padding-left: var(--space-lg);
    border-left: 2px solid var(--color-cognitive-border);
    line-height: 1.4;
}

.analysis-interpretations {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.interpretation {
    padding: var(--space-xl);
    background: var(--color-surface-alt);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border-subtle);
}

.interpretation-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
}

.interpretation-label {
    font-size: 0.875rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-secondary);
    font-family: var(--font-mono);
    letter-spacing: 0.05em;
}

.interpretation-bias {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.bias-negative {
    background: var(--color-signal-negative);
    box-shadow: 0 0 0 3px rgba(185, 28, 28, 0.1);
}

.bias-positive {
    background: var(--color-signal-positive);
    box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.1);
}

.interpretation-text {
    font-size: 1.125rem;
    color: var(--color-text-primary);
    line-height: 1.5;
    margin-bottom: var(--space-lg);
}

.interpretation-metrics {
    display: flex;
    gap: var(--space-md);
}

.interpretation-metrics .metric {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
    font-family: var(--font-mono);
}

.analysis-insight {
    padding: var(--space-xl);
    background: var(--color-cognitive-subtle);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-cognitive-border);
    display: flex;
    align-items: flex-start;
    gap: var(--space-lg);
}

.insight-marker {
    font-size: 1.5rem;
    color: var(--color-cognitive-primary);
    flex-shrink: 0;
}

.insight-text {
    font-size: 1.125rem;
    color: var(--color-text-primary);
    margin: 0;
    line-height: 1.5;
}

/* =====================================================
   COGNITIVE LAYERS - UPDATED CONTENT
   ===================================================== */

.cognitive-layers {
    background-color: var(--color-surface-alt);
}

.layers-content {
    max-width: 1000px;
    margin: 0 auto;
}

.layers-title {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.layers-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-3xl);
}

.layers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-4xl);
}

.layer {
    background: var(--color-surface-card);
    border: 1px solid var(--color-border-medium);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    transition: all var(--transition-medium);
}

.layer:hover {
    border-color: var(--color-cognitive-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-elevated);
}

.layer-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.layer-index {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-cognitive-primary);
    background: var(--color-cognitive-subtle);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-full);
    border: 1px solid var(--color-cognitive-border);
    min-width: 32px;
    text-align: center;
}

.layer-name {
    font-size: 1.25rem;
    margin-bottom: 0;
}

.layer-description {
    font-size: 1rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
    margin-bottom: var(--space-lg);
}

.layer-coverage {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.coverage-data {
    display: flex;
    align-items: baseline;
    gap: var(--space-xs);
}

.coverage-value {
    font-size: 1.75rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-cognitive-primary);
    font-family: var(--font-mono);
}

.coverage-label {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
}

.coverage-bar {
    height: 6px;
    background: var(--color-surface-alt);
    border-radius: 3px;
    overflow: hidden;
}

.coverage-fill {
    height: 100%;
    background: var(--color-cognitive-primary);
    border-radius: 3px;
    width: 0;
    transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.3s;
}

.layers-insight {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-2xl);
    background: var(--color-surface-card);
    border: 1px solid var(--color-cognitive-primary);
    border-radius: var(--radius-2xl);
    position: relative;
}

.insight-container {
    text-align: center;
}

.insight-statement {
    font-size: 1.5rem;
    color: var(--color-text-primary);
    line-height: 1.4;
    margin-bottom: var(--space-lg);
}

.insight-metric {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
}

.metric-value {
    font-size: 3rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-cognitive-primary);
    font-family: var(--font-mono);
}

.metric-label {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
    max-width: 400px;
}

/* =====================================================
   COGNITIVE PATTERNS - UPDATED CONTENT
   ===================================================== */

.cognitive-patterns {
    background-color: var(--color-base);
}

.patterns-content {
    max-width: 1000px;
    margin: 0 auto;
}

.patterns-title {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.patterns-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-3xl);
}

.patterns-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
}

.pattern {
    background: var(--color-surface-card);
    border: 1px solid var(--color-border-medium);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    transition: all var(--transition-medium);
}

.pattern:hover {
    border-color: var(--color-cognitive-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-elevated);
}

.pattern-visual {
    margin-bottom: var(--space-lg);
}

.visual-container {
    width: 100%;
    height: 120px;
    background: var(--color-surface-alt);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-subtle);
    position: relative;
    overflow: hidden;
}

.visual-line {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--color-border-medium);
}

.visual-point {
    position: absolute;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-cognitive-primary);
    top: 50%;
    transform: translateY(-50%);
}

.visual-point.point-1 { left: 20%; }
.visual-point.point-2 { left: 50%; }
.visual-point.point-3 { left: 80%; }

.visual-wave {
    position: absolute;
    top: 50%;
    left: 10%;
    right: 10%;
    height: 40px;
    border-bottom: 1px solid var(--color-cognitive-primary);
    border-radius: 50%;
}

.visual-gap {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 60px;
    height: 1px;
    background: var(--color-signal-warning);
    transform: translate(-50%, -50%);
}

.pattern-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.pattern-name {
    font-size: 1.25rem;
    margin-bottom: 0;
}

.pattern-description {
    font-size: 1rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

.pattern-example {
    padding: var(--space-md);
    background: var(--color-surface-alt);
    border-radius: var(--radius-lg);
    border-left: 3px solid var(--color-cognitive-primary);
}

.example-label {
    display: block;
    font-size: 0.75rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-cognitive-primary);
    margin-bottom: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-family: var(--font-mono);
}

.example-text {
    font-size: 0.875rem;
    color: var(--color-text-primary);
    line-height: 1.5;
    margin: 0;
}

/* =====================================================
   COGNITIVE FOUNDATION - UPDATED CONTENT
   ===================================================== */

.cognitive-foundation {
    background-color: var(--color-surface-alt);
}

.foundation-content {
    max-width: 1000px;
    margin: 0 auto;
}

.foundation-title {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.foundation-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-3xl);
}

.foundation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
}

.principle {
    background: var(--color-surface-card);
    border: 1px solid var(--color-border-medium);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    transition: all var(--transition-medium);
}

.principle:hover {
    border-color: var(--color-cognitive-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-elevated);
}

.principle-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
    gap: var(--space-md);
}

.principle-name {
    font-size: 1.25rem;
    margin-bottom: 0;
    flex: 1;
}

.principle-tag {
    font-size: 0.75rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-cognitive-primary);
    background: var(--color-cognitive-subtle);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-full);
    border: 1px solid var(--color-cognitive-border);
    font-family: var(--font-mono);
    letter-spacing: 0.05em;
}

.principle-description {
    font-size: 1rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
    margin-bottom: var(--space-lg);
}

.principle-metric {
    display: flex;
    align-items: baseline;
    gap: var(--space-sm);
}

.principle-metric .metric-value {
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-cognitive-primary);
    font-family: var(--font-mono);
}

.principle-metric .metric-label {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
    flex: 1;
}

/* =====================================================
   COGNITIVE ACCESS - UPDATED CONTENT
   ===================================================== */

.cognitive-access {
    background: var(--color-base);
    border-top: 1px solid var(--color-border-subtle);
    border-bottom: 1px solid var(--color-border-subtle);
}

.access-content {
    max-width: 1000px;
    margin: 0 auto;
}

.access-header {
    margin-bottom: var(--space-4xl);
}

.access-marker {
    margin-bottom: var(--space-lg);
}

.access-marker .marker-text {
    font-size: 0.875rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-cognitive-primary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-family: var(--font-mono);
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    background: var(--color-cognitive-subtle);
    border: 1px solid var(--color-cognitive-border);
    border-radius: var(--radius-full);
}

.access-title {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.access-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 600px;
}

.access-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-4xl);
}

.option {
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    text-decoration: none;
    transition: all var(--transition-medium);
    border: 1px solid transparent;
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    text-align: left;
}

.option-primary {
    background: var(--color-cognitive-primary);
    color: white;
}

.option-secondary {
    background: var(--color-surface);
    border-color: var(--color-cognitive-primary);
    color: var(--color-cognitive-primary);
}

.option-tertiary {
    background: var(--color-surface);
    border-color: var(--color-authority-primary);
    color: var(--color-authority-primary);
}

.option:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-elevated);
}

.option-primary:hover {
    background: var(--color-cognitive-light);
}

.option-secondary:hover {
    background: var(--color-cognitive-subtle);
}

.option-tertiary:hover {
    background: rgba(45, 59, 109, 0.05);
}

.option-icon {
    font-size: 1.5rem;
    transition: transform var(--transition-medium);
}

.option:hover .option-icon {
    transform: scale(1.1);
}

.option-content {
    flex: 1;
}

.option-main {
    display: block;
    font-weight: var(--font-weight-semibold);
    font-size: 1.125rem;
    margin-bottom: var(--space-xs);
}

.option-sub {
    display: block;
    font-size: 0.875rem;
    opacity: 0.9;
}

.access-note {
    padding: var(--space-xl);
    background: var(--color-surface-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border-medium);
    display: flex;
    align-items: flex-start;
    gap: var(--space-lg);
    max-width: 700px;
    margin: 0 auto;
}

.note-icon {
    font-size: 1.5rem;
    color: var(--color-cognitive-primary);
    flex-shrink: 0;
}

.note-text {
    font-size: 1rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin: 0;
    text-align: left;
}

.note-emphasis {
    color: var(--color-text-primary);
    font-weight: var(--font-weight-semibold);
}

/* =====================================================
   COGNITIVE FOOTER - UNCHANGED
   ===================================================== */

.cognitive-footer {
    padding: var(--space-5xl) 0;
    border-top: 1px solid var(--color-border-medium);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-4xl);
    align-items: start;
}

.footer-instrument {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.instrument-link {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
}

.instrument-description {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
    max-width: 300px;
    margin: 0;
}

.instrument-meta {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    font-family: var(--font-mono);
}

.footer-nodes {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2xl);
}

.node-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.group-title {
    font-size: 0.875rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-family: var(--font-mono);
}

.group-node {
    color: var(--color-text-tertiary);
    font-size: 0.875rem;
    text-decoration: none;
    transition: color var(--transition-fast);
    padding: var(--space-xs) 0;
}

.group-node:hover {
    color: var(--color-text-primary);
}

/* =====================================================
   COGNITIVE NAVIGATION - UNCHANGED
   ===================================================== */

.cognitive-navigation {
    position: fixed;
    right: var(--space-xl);
    bottom: var(--space-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    z-index: var(--z-sticky);
}

.nav-direction {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--color-surface-card);
    border: 1px solid var(--color-border-medium);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-medium);
    box-shadow: var(--shadow-card);
}

.nav-direction:hover {
    border-color: var(--color-cognitive-primary);
    color: var(--color-cognitive-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-elevated);
}

/* =====================================================
   RESPONSIVE ARCHITECTURE - UNCHANGED
   ===================================================== */

@media (max-width: 1200px) {
    .container {
        max-width: 1000px;
        padding: 0 var(--space-xl);
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .positioning-statement {
        font-size: 2.5rem;
    }
    
    .access-title,
    .fracture-title,
    .layers-title,
    .patterns-title,
    .foundation-title {
        font-size: 2rem;
    }
}

@media (max-width: 992px) {
    html {
        font-size: 17px;
    }
    
    .cognitive-nav {
        display: none;
    }
    
    .mobile-cognitive-toggle {
        display: flex;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-3xl);
    }
    
    .footer-nodes {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .analysis-interpretations {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .access-options {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 16px;
    }
    
    .container {
        padding: 0 var(--space-lg);
    }
    
    section {
        padding: var(--space-4xl) 0;
    }
    
    .positioning-statement {
        font-size: 2rem;
    }
    
    .positioning-actions {
        flex-direction: column;
    }
    
    .action-primary,
    .action-secondary {
        min-width: 100%;
    }
    
    .fracture-title,
    .layers-title,
    .patterns-title,
    .foundation-title,
    .access-title {
        font-size: 1.75rem;
    }
    
    .analysis-statement {
        font-size: 1.5rem;
    }
    
    .mobile-cognitive-panel {
        max-width: 320px;
    }
    
    .cognitive-navigation {
        right: var(--space-md);
        bottom: var(--space-lg);
    }
    
    .nav-direction {
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 576px) {
    .footer-nodes {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .positioning-statement {
        font-size: 1.75rem;
    }
    
    .analysis-container {
        padding: var(--space-lg);
    }
    
    .layers-grid,
    .patterns-grid,
    .foundation-grid {
        grid-template-columns: 1fr;
    }
    
    .mobile-cognitive-panel {
        max-width: 280px;
    }
    
    .panel-node {
        padding: var(--space-md);
    }
    
    .access-primary,
    .access-secondary {
        min-height: 56px;
        padding: var(--space-md);
    }
}

@media print {
    .cognitive-header,
    .mobile-cognitive-overlay,
    .cognitive-navigation,
    .positioning-progression,
    .positioning-actions {
        display: none !important;
    }
    
    section {
        padding: var(--space-xl) 0 !important;
        break-inside: avoid;
    }
    
    body {
        background: white !important;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .statement-line,
    .coverage-fill {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }
}