/* ============================================
    CSS 
   ============================================ */

:root {
    /* Color Palette - Light Theme (Default) */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #f1f3f5;
    --bg-card: #ffffff;
    --bg-overlay: rgba(255, 255, 255, 0.95);
    
    /* Heat Theme Accents - Subtle & Refined */
    --primary-color: #e85d04;        /* Refined orange */
    --primary-color-rgb: 232, 93, 4; /* RGB values for primary color */
    --primary-hover: #d95504;        /* Darker orange for hover */
    --primary-light: #ff6b35;        /* Lighter orange */
    --primary-dark: #c44536;         /* Darker orange */
    --accent-color: #dc2626;         /* Refined red */
    --accent-light: #ef4444;         /* Light red */
    --accent-dark: #b91c1c;          /* Dark red */
    --heat-yellow: #f59e0b;          /* Warm amber */
    
    /* Text Colors - Light Theme */
    --text-primary: #1a1a1a;
    --text-secondary: #4a5568;
    --text-tertiary: #718096;
    --text-light: #a0aec0;
    --text-inverse: #ffffff;
    
    /* Borders & Dividers - Light Theme */
    --border-light: #e2e8f0;
    --border-medium: #cbd5e0;
    --border-dark: #a0aec0;
    --border-accent: rgba(232, 93, 4, 0.2);
    --border-accent-hover: rgba(232, 93, 4, 0.4);
    
    /* Typography - Scientific/Academic Serif */
    --font-primary: 'Charter', 'Bitstream Charter', 'Georgia', 'Times New Roman', 'Times', serif;
    --font-mono: 'SF Mono', 'Monaco', 'Consolas', monospace;
    
    /* Font Sizes - Scientific/Academic Scale (slightly larger for serif readability) */
    --font-size-xs: 0.8125rem;    /* 13px */
    --font-size-sm: 0.9375rem;    /* 15px */
    --font-size-base: 1.0625rem;  /* 17px */
    --font-size-lg: 1.1875rem;    /* 19px */
    --font-size-xl: 1.3125rem;    /* 21px */
    --font-size-2xl: 1.625rem;    /* 26px */
    --font-size-3xl: 2.125rem;   /* 34px */
    --font-size-4xl: 2.625rem;   /* 42px */
    --font-size-hero: 3.125rem;  /* 50px */
    
    /* Font Weights */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Line Heights - Adjusted for serif readability */
    --line-height-tight: 1.3;
    --line-height-normal: 1.6;
    --line-height-relaxed: 1.8;
    
    /* Spacing System - Better Hierarchy */
    --spacing-xs: 0.5rem;    /* 8px */
    --spacing-sm: 0.75rem;   /* 12px */
    --spacing-md: 1rem;      /* 16px */
    --spacing-lg: 1.5rem;    /* 24px */
    --spacing-xl: 2rem;      /* 32px */
    --spacing-2xl: 3rem;     /* 48px */
    --spacing-3xl: 4rem;    /* 64px */
    --spacing-4xl: 6rem;    /* 96px */
    
    /* Max Widths */
    --max-width-content: 1200px;
    --max-width-text: 65ch;
    
    /* Shadows - Subtle & Professional */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
    
    /* Transitions - Smooth & Subtle */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Border Radius */
    --radius-sm: 0.375rem;   /* 6px */
    --radius-md: 0.5rem;     /* 8px */
    --radius-lg: 0.75rem;    /* 12px */
    --radius-xl: 1rem;       /* 16px */
}

/* ============================================
   Animations - Subtle & Professional
   ============================================ */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes highlightPulse {
    0%, 100% {
        background-color: transparent;
    }
    50% {
        background-color: rgba(232, 93, 4, 0.15);
    }
}

/* ============================================
   Reset & Base Styles
   ============================================ */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    background-attachment: fixed;
    -webkit-overflow-scrolling: touch;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}


/* ============================================
   Typography - Refined
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--text-primary);
    letter-spacing: 0;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
}

h2 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
}

h3 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
}

h4 {
    font-size: var(--font-size-xl);
    font-weight: 600;
}

p {
    margin-bottom: var(--spacing-md);
    max-width: var(--max-width-text);
    line-height: var(--line-height-relaxed);
    color: var(--text-secondary);
}

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

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

a:focus {
    outline: none;
}

code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background: var(--bg-tertiary);
    padding: 0.2em 0.4em;
    border-radius: var(--radius-sm);
    color: var(--primary-color);
    border: 1px solid var(--border-light);
}

/* ============================================
   Header & Navigation
   ============================================ */

.header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 1000;
    transition: transform 0.3s ease, background var(--transition-normal), border-color var(--transition-normal);
    transform: translateY(0);
    will-change: transform;
}

.header.hidden {
    transform: translateY(-100%) !important;
}

.header[style*="translateY(-100%)"] {
    transform: translateY(-100%) !important;
}

.nav-container {
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-xl);
    min-height: 56px;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo h1 {
    font-size: 1.125rem;
    margin: 0;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: var(--text-primary);
    font-family: var(--font-primary);
    text-transform: uppercase;
    position: relative;
    display: inline-block;
}

.logo a {
    color: inherit;
    text-decoration: none;
    display: inline-block;
}

.logo a:hover h1 {
    color: var(--primary-color);
}

.nav-menu a.active {
    color: var(--text-primary);
    font-weight: 600;
}

.nav-menu a.active::after {
    width: 100%;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-2xl);
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-menu a {
    color: var(--text-tertiary);
    font-weight: 500;
    font-size: var(--font-size-sm);
    padding: var(--spacing-xs) 0;
    position: relative;
    transition: color var(--transition-fast);
    text-decoration: none;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--primary-color);
    transition: width var(--transition-normal);
}

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

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



/* Methodology Page Header */
.story-header {
    background: var(--bg-overlay);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.story-main {
    padding-top: var(--spacing-2xl);
}

.story-header .story-container {
    max-width: var(--max-width-content);
    margin: 0 auto;
}

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

.story-header .logo-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.story-header .logo-icon {
    color: var(--primary-color);
    flex-shrink: 0;
}

.story-header .site-title {
    font-size: var(--font-size-xl);
    margin: 0;
    font-weight: var(--font-weight-bold);
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 50%, var(--heat-yellow) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.story-header .main-nav {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
}

.story-header .main-nav a {
    color: var(--text-secondary);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-base);
    padding: var(--spacing-xs) 0;
    position: relative;
    transition: color var(--transition-fast);
    text-decoration: none;
}

.story-header .main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width var(--transition-normal);
}

.story-header .main-nav a:hover {
    color: var(--text-primary);
}

.story-header .main-nav a:hover::after {
    width: 100%;
}

.story-header .main-nav a.active {
    color: var(--primary-color);
}

.story-header .main-nav a.active::after {
    width: 100%;
}



/* Mobile Menu Toggle Button */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 30px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    position: relative;
}

.mobile-menu-toggle span {
    width: 100%;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-normal);
    transform-origin: center;
}

.mobile-menu-toggle:hover span {
    background: var(--primary-color);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

/* ============================================
   Storytelling Format Styles
   ============================================ */

.story-hero {
    background: transparent;
    padding: var(--spacing-lg) var(--spacing-xl) var(--spacing-md);
    margin-bottom: var(--spacing-md);
    text-align: left;
}

.story-hero::before {
    display: none;
}

.story-hero .story-container {
    position: relative;
    z-index: 1;
}


.story-container {
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    padding-top: calc(80px + var(--spacing-lg)); /* Account for fixed header */
}

.story-title {
    font-size: var(--font-size-hero);
    font-weight: 900;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    line-height: 1.1;
    letter-spacing: -0.02em;
    text-transform: uppercase;
    font-family: var(--font-primary);
}

.story-lead {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    color: var(--text-secondary);
    font-weight: var(--font-weight-normal);
    max-width: none;
    margin: var(--spacing-sm) 0 var(--spacing-md) 0;
    text-align: left;
}

.story-content {
    max-width: 100%;
    margin: 0;
    padding: 0;
}

.story-chapter {
    padding: var(--spacing-lg) 0;
    margin-bottom: 0;
}

.story-chapter-alt {
    /* Removed alternating background for consistency */
}

/* ============================================
   Narrative Scaffolding Elements
   ============================================ */

/* Narrative Bridge: Connects sections with smooth transitions */
.narrative-bridge {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-primary) 100%);
    padding: var(--spacing-3xl) 0;
    position: relative;
}

.bridge-container {
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.bridge-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.bridge-text {
    font-size: var(--font-size-xl);
    line-height: var(--line-height-relaxed);
    color: var(--text-secondary);
    font-style: italic;
    font-weight: var(--font-weight-medium);
}

/* Human-Scale Callout: Makes data relatable */
.human-scale-callout {
    background: linear-gradient(135deg, rgba(232, 93, 4, 0.08) 0%, rgba(232, 93, 4, 0.03) 100%);
    border-left: 4px solid var(--primary-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl) var(--spacing-2xl) var(--spacing-xl) var(--spacing-lg);
    margin: var(--spacing-2xl) 0;
}

.callout-content {
    width: 100%;
}

.callout-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin: 0 0 var(--spacing-md) 0;
    line-height: var(--line-height-tight);
}

.callout-text {
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    color: var(--text-secondary);
    margin: 0;
}

.callout-text + .callout-text {
    margin-top: var(--spacing-md);
}

/* Pull Quote: Emphasizes key insights */
.pull-quote {
    margin: var(--spacing-3xl) auto;
    padding: var(--spacing-2xl) var(--spacing-xl);
    max-width: 900px;
    position: relative;
}


.pull-quote blockquote {
    margin: 0;
    padding: 0;
    border: none;
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    font-style: italic;
    color: var(--text-primary);
    text-align: center;
}

/* Story Transition: Visual break between themes */
.story-transition {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-md) 0;
}

.transition-line {
    flex: 1;
    height: 2px;
    background: linear-gradient(90deg, transparent 0%, var(--border-medium) 50%, transparent 100%);
}

.transition-text {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: var(--font-weight-semibold);
    white-space: nowrap;
}

/* Story Pause: Creates breathing room */
.story-pause {
    padding: var(--spacing-3xl) 0;
    margin: var(--spacing-2xl) 0;
    text-align: center;
}

.pause-content {
    max-width: 700px;
    margin: 0 auto;
}

.pause-text {
    font-size: var(--font-size-xl);
    line-height: var(--line-height-relaxed);
    color: var(--text-primary);
    font-weight: var(--font-weight-medium);
    font-style: italic;
}

.chapter-header {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-light);
}

.chapter-number {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-sm);
}

.chapter-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    letter-spacing: -0.03em;
    margin: 0;
    padding: 0;
    border: none;
}

.chapter-title::after {
    display: none;
}

.story-text {
    margin-bottom: var(--spacing-md);
}

.story-text + .story-viz {
    margin-top: var(--spacing-md);
}

.story-paragraph {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    max-width: 100%;
}

.story-fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.story-fade-in.visible {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

.highlight-text {
    font-weight: var(--font-weight-semibold);
    color: var(--accent-color);
    padding: 2px 4px;
    border-radius: 3px;
    transition: background-color var(--transition-normal);
}

.highlight-text.visible {
    animation: highlightPulse 2s ease-in-out;
}

.highlight-text:hover {
    background-color: rgba(232, 93, 4, 0.1);
}

.story-viz {
    margin: var(--spacing-xl) 0;
}

.story-viz-container {
    background: transparent;
    border: none;
    border-radius: 0;
    padding: var(--spacing-2xl) 0;
    box-shadow: none;
    transition: all var(--transition-normal);
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    overflow: visible;
}

.story-viz-container .viz-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    font-weight: var(--font-weight-semibold);
    letter-spacing: -0.02em;
}

.story-viz-container .visualization {
    margin-bottom: var(--spacing-sm);
    width: 100%;
    max-width: 100%;
    min-height: 600px;
    overflow: visible;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    background: transparent;
    border: none;
    padding: 0;
}

.story-viz-container .viz-caption {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    line-height: var(--line-height-relaxed);
    padding-top: var(--spacing-xs);
    border-top: none;
    width: 100%;
    max-width: 100%;
    font-style: italic;
    margin-top: var(--spacing-xs);
}

.story-viz-scrolly {
    margin: var(--spacing-3xl) 0;
}

.story-viz-scrolly .story-viz-container {
    max-width: 100%;
    margin: 0 auto;
    padding: var(--spacing-2xl);
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-md);
}

.story-viz-scrolly .viz-title {
    font-size: clamp(1.5rem, 2.2vw, 2.4rem);
    font-weight: var(--font-weight-bold);
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.scrolly-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.scrolly-sticky {
    position: sticky;
    top: 8vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 80vh;
    gap: var(--spacing-md);
}

.scrolly-viz {
    width: min(92vw, 1600px);
    min-height: 75vh;
    background: #f7f8fa;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.tile-map {
    position: relative;
    width: 100%;
    max-width: 100%;
    aspect-ratio: var(--map-aspect, 16 / 9);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: #f2f4f7;
    box-shadow: var(--shadow-lg);
    min-height: 600px;
    box-sizing: border-box;
    transition: background var(--transition-normal);
}


.tile-layer {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
    max-width: 100%;
    box-sizing: border-box;
}

.tile-layer.semantic-step {
    border-radius: var(--radius-lg);
    display: block;
    image-rendering: auto;
    max-width: 100%;
    width: 100%;
    height: 100%;
    box-sizing: border-box;
}

.tile-map canvas {
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    box-sizing: border-box;
}

/* Ensure all canvas elements in visualizations don't overflow */
.visualization canvas,
.tile-canvas {
    max-width: 100%;
    width: 100%;
    height: auto;
    box-sizing: border-box;
    display: block;
}

.tile-layer.is-visible {
    opacity: 1;
    visibility: visible;
}

.tile-layer.is-muted {
    opacity: 0.35;
}

.tile-layer img {
    position: absolute;
    image-rendering: auto;
    object-fit: cover;
    border: none;
    margin: 0;
    padding: 0;
    transition: opacity 0.2s ease;
}

.tile-layer img[src=""] {
    opacity: 0;
}

.tile-layer[data-layer="built"] {
    filter: saturate(1.15) contrast(1.05);
}

.scrolly-legend {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 16px;
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.scrolly-legend .legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.scrolly-legend .legend-swatch {
    width: 12px;
    height: 12px;
    border-radius: 3px;
    border: 1px solid var(--border-light);
}

.scrolly-legend .legend-veg {
    background: #2f9e44;
}

.scrolly-legend .legend-low-veg {
    background: #66d17a;
}

.scrolly-legend .legend-bare {
    background: #d4a373;
}

.scrolly-legend .legend-built {
    background: #e8590c;
}

.scrolly-legend .legend-water {
    background: #4dabf7;
}

.tile-canvas {
    width: 100%;
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    image-rendering: auto;
    object-fit: contain;
}

.tile-legend {
    margin-top: var(--spacing-md);
    display: grid;
    gap: 6px;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.tile-legend-title {
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

.tile-legend-bar {
    height: 10px;
    border-radius: 6px;
    border: 1px solid var(--border-light);
}

.tile-legend-labels {
    display: flex;
    justify-content: space-between;
    font-variant-numeric: tabular-nums;
    font-size: var(--font-size-xs);
}

/* ============================================
   Semantic Slider (3-step semantic visualization)
   ============================================ */

.semantic-slider-container {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

.slider-label {
    display: block;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.slider-wrapper {
    position: relative;
}

.semantic-slider {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: var(--bg-tertiary);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
    margin-bottom: var(--spacing-md);
}

.semantic-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    border: 3px solid var(--bg-primary);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-fast);
}

.semantic-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.semantic-slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    border: 3px solid var(--bg-primary);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-fast);
}

.semantic-slider::-moz-range-thumb:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-xs);
}

.slider-label-item {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    cursor: pointer;
    user-select: none;
}

.slider-label-item:hover {
    color: var(--primary-color);
    background: var(--bg-tertiary);
}

.slider-label-item.active {
    color: var(--primary-color);
    font-weight: var(--font-weight-semibold);
    background: var(--border-accent);
}

.scrolly-steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    max-width: 720px;
    margin: 0 auto;
}

.scrolly-step {
    display: block;
    padding: var(--spacing-lg);
    border-left: 4px solid transparent;
    background: transparent;
    transition: border-color var(--transition-normal), color var(--transition-normal);
}

.scrolly-step h4 {
    margin: 0 0 var(--spacing-xs);
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    font-weight: var(--font-weight-semibold);
}

.scrolly-step p {
    margin: 0;
    color: var(--text-secondary);
    line-height: var(--line-height-relaxed);
}

.scrolly-step.is-active {
    border-left-color: var(--primary-color);
}

.scrolly-stats {
    width: min(420px, 90vw);
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
}

.scrolly-stats .stats-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.scrolly-stats .stats-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    padding: 4px 0;
    transition: opacity 0.3s ease;
}

.scrolly-stats .stats-row.is-muted {
    opacity: 0.4;
}

.scrolly-stats .stats-value {
    font-variant-numeric: tabular-nums;
    color: var(--text-primary);
}

.story-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-2xl) 0;
}

/* Implications Section */
.implications-section {
    background: linear-gradient(135deg, rgba(232, 93, 4, 0.05) 0%, rgba(220, 38, 38, 0.05) 100%);
    border: 2px solid var(--border-accent);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    margin: var(--spacing-3xl) 0;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.implications-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.implications-highlight {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
}

.implications-icon {
    color: var(--primary-color);
    flex-shrink: 0;
}

.implications-stat {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin: 0;
    line-height: 1.4;
}

.implications-stat strong {
    color: var(--accent-color);
    font-size: var(--font-size-xl);
}

.implications-context {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    margin: var(--spacing-lg) 0;
    text-align: center;
    line-height: var(--line-height-relaxed);
    font-style: italic;
}

.implications-intro {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin: var(--spacing-lg) 0 var(--spacing-md);
    text-align: center;
}

.implications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.implications-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    transition: all var(--transition-fast);
}

.implications-item:hover {
    border-color: var(--border-accent);
    box-shadow: var(--shadow-sm);
    transform: translateY(-2px);
}

.implications-icon-small {
    color: var(--primary-color);
    flex-shrink: 0;
}

.implications-item span {
    font-size: var(--font-size-base);
    color: var(--text-primary);
    font-weight: var(--font-weight-medium);
}

.implications-conclusion {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    background: var(--bg-card);
    border: 2px solid var(--accent-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin: 0;
    line-height: 1.5;
}

.implications-icon-inline {
    color: var(--accent-color);
    flex-shrink: 0;
}

.implications-conclusion strong {
    color: var(--accent-color);
    font-weight: var(--font-weight-bold);
}

.story-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal), background var(--transition-normal), border-color var(--transition-normal);
}

.story-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--border-accent-hover);
}

.story-card .card-title {
    font-size: var(--font-size-lg);
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    font-weight: var(--font-weight-semibold);
}

.story-card p {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: var(--line-height-relaxed);
    margin: 0;
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    padding: var(--spacing-4xl) var(--spacing-xl) var(--spacing-3xl);
    margin-bottom: var(--spacing-3xl);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(232, 93, 4, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.hero-container {
    max-width: var(--max-width-content);
    margin: 0 auto;
    position: relative;
    z-index: 1;
    animation: fadeInUp 0.6s ease-out;
}

.hero-title {
    font-size: var(--font-size-hero);
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    line-height: 1.1;
    letter-spacing: -0.04em;
    max-width: 900px;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-xl);
    color: var(--text-secondary);
    max-width: 700px;
    font-weight: var(--font-weight-normal);
}

.hero-key-message {
    background: var(--bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-color);
    margin-top: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    max-width: 800px;
    position: relative;
    animation: slideIn 0.6s ease-out 0.2s both;
    transition: background var(--transition-normal);
}

.key-message-text {
    margin: 0;
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    line-height: var(--line-height-relaxed);
}

.key-message-text strong {
    color: var(--primary-color);
    font-weight: var(--font-weight-semibold);
}

/* ============================================
   Main Content
   ============================================ */

.main-content {
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: 0 var(--spacing-xl) var(--spacing-3xl);
    position: relative;
}

.container {
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    font-weight: var(--font-weight-bold);
    letter-spacing: -0.03em;
    position: relative;
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-light);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: var(--primary-color);
    border-radius: 1px;
}

.section-intro {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    max-width: 800px;
    line-height: var(--line-height-relaxed);
}

/* ============================================
   Sidebar Navigation
   ============================================ */

/* Sidebar toggle button */
.sidebar-toggle {
    position: fixed;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1001;
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--primary-color);
    border: none;
    color: white;
    cursor: pointer;
    display: none !important;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    visibility: hidden;
}

.sidebar-toggle.visible {
    opacity: 1;
    visibility: visible;
}

.sidebar-toggle:hover {
    transform: translateY(-50%) scale(1.08);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
    background: var(--primary-hover);
}

.sidebar-toggle:active {
    transform: translateY(-50%) scale(0.95);
}

.sidebar-nav {
    position: fixed;
    left: 0;
    top: 50%;
    transform: translate(-100%, -50%);
    z-index: 999;
    padding: 16px 12px;
    background: var(--bg-overlay);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-right: 1px solid var(--border-light);
    border-radius: 0 12px 12px 0;
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.12);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: auto;
    min-width: 180px;
    display: none !important;
}

.sidebar-nav.visible {
    transform: translate(0, -50%);
}

.sidebar-nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sidebar-nav-link {
    display: block;
    padding: 8px 12px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    border-radius: 6px;
    transition: all 0.2s ease;
    white-space: nowrap;
    position: relative;
    padding-left: 16px;
}

.sidebar-nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-secondary);
    padding-left: 20px;
}

.sidebar-nav-link.active {
    color: var(--primary-color);
    background: rgba(var(--primary-color-rgb), 0.1);
    font-weight: 600;
    padding-left: 20px;
}

.sidebar-nav-link.active::before {
    content: '';
    position: absolute;
    left: 6px;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 16px;
    background: var(--primary-color);
    border-radius: 2px;
}

/* Adjust content padding to account for fixed header */
.story-content {
    padding-top: 0;
}

/* ============================================
   Visualizations Section
   ============================================ */

.visualizations-section {
    margin-bottom: var(--spacing-3xl);
}

.viz-container {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
    box-shadow: var(--shadow-sm);
    position: relative;
    transition: all var(--transition-normal), background var(--transition-normal), border-color var(--transition-normal);
    animation: fadeInUp 0.6s ease-out both;
}

.viz-container:nth-child(1) { animation-delay: 0.1s; }
.viz-container:nth-child(2) { animation-delay: 0.2s; }
.viz-container:nth-child(3) { animation-delay: 0.3s; }

.viz-container:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-accent-hover);
}

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

.viz-title {
    font-size: var(--font-size-xl);
    margin: 0;
    color: var(--text-primary);
    font-weight: var(--font-weight-semibold);
    letter-spacing: -0.02em;
}

.viz-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.viz-controls label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
}

.control-select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-family: var(--font-primary);
    background: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast), background var(--transition-normal), border-color var(--transition-normal), color var(--transition-normal);
    min-width: 150px;
}

.control-select:hover {
    border-color: var(--primary-color);
    background: var(--bg-secondary);
}

.control-select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.visualization {
    min-height: 600px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px dashed var(--border-medium);
    position: relative;
    transition: background var(--transition-normal), border-color var(--transition-normal);
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    overflow: hidden;
}

.visualization svg {
    max-width: 100%;
    height: auto;
    display: block;
}

.visualization svg image {
    max-width: 100%;
    height: auto;
}

.placeholder-text {
    color: var(--text-tertiary);
    font-style: italic;
    text-align: center;
    position: absolute;
    z-index: 1;
    font-size: var(--font-size-base);
    transition: color var(--transition-normal);
    width: 100%;
    top: 50%;
    transform: translateY(-50%);
}

.viz-caption {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    line-height: var(--line-height-normal);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-light);
    width: 100%;
    max-width: 100%;
}

.viz-caption p {
    margin: 0;
    max-width: 100%;
    width: 100%;
}

.viz-caption strong {
    color: var(--text-secondary);
    font-weight: var(--font-weight-semibold);
}

/* ============================================
   Methodology Section
   ============================================ */

.methodology-section {
    background: var(--bg-secondary);
    padding: var(--spacing-3xl) var(--spacing-2xl);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-3xl);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    position: relative;
}

.methodology-content {
    max-width: 100%;
}

.methodology-subsection {
    margin-bottom: var(--spacing-2xl);
    animation: fadeInUp 0.6s ease-out both;
}

.methodology-subsection:nth-child(1) { animation-delay: 0.1s; }
.methodology-subsection:nth-child(2) { animation-delay: 0.2s; }
.methodology-subsection:nth-child(3) { animation-delay: 0.3s; }
.methodology-subsection:nth-child(4) { animation-delay: 0.4s; }

.methodology-subsection:last-child {
    margin-bottom: 0;
}

.subsection-title {
    font-size: var(--font-size-xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-weight: var(--font-weight-semibold);
    letter-spacing: -0.02em;
}

.methodology-subsection p {
    margin-bottom: var(--spacing-md);
    max-width: 100%;
    color: var(--text-secondary);
    line-height: var(--line-height-relaxed);
}

.methodology-subsection ul,
.methodology-subsection ol {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    max-width: calc(100% - var(--spacing-lg));
}

.methodology-subsection li {
    margin-bottom: var(--spacing-sm);
    line-height: var(--line-height-relaxed);
    color: var(--text-secondary);
}

.data-sources-list {
    list-style: none;
    margin-left: 0;
}

.data-sources-list li {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
    position: relative;
}

.data-sources-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: var(--font-weight-bold);
}

.pipeline-list {
    counter-reset: step-counter;
    list-style: none;
    margin-left: 0;
}

.pipeline-list li {
    counter-increment: step-counter;
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-2xl);
    position: relative;
}

.pipeline-list li::before {
    content: counter(step-counter);
    position: absolute;
    left: 0;
    background: var(--primary-color);
    color: var(--text-inverse);
    width: 2em;
    height: 2em;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    box-shadow: var(--shadow-sm);
}

/* ============================================
   Team Section
   ============================================ */

.team-section {
    margin-bottom: var(--spacing-3xl);
}

.team-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: var(--spacing-2xl);
}

.team-member {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    max-width: 600px;
    width: 100%;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    position: relative;
    animation: fadeInUp 0.6s ease-out both;
    border-top: 4px solid var(--primary-color);
}

.team-member:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--border-accent-hover);
}

.member-content {
    text-align: center;
}

.member-name {
    font-size: var(--font-size-2xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-weight: var(--font-weight-bold);
    letter-spacing: -0.02em;
}

.member-role {
    font-size: var(--font-size-lg);
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    font-weight: var(--font-weight-medium);
}

.member-description {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: var(--line-height-relaxed);
    margin: 0;
    max-width: 100%;
}

/* ============================================
   Content Sections (UHI Page)
   ============================================ */

.content-section {
    margin-bottom: var(--spacing-3xl);
}

.content-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-sm);
    animation: fadeInUp 0.6s ease-out both;
    transition: background var(--transition-normal), border-color var(--transition-normal);
}

.content-card h3.subsection-title {
    font-size: var(--font-size-xl);
    color: var(--text-primary);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    font-weight: var(--font-weight-semibold);
    letter-spacing: -0.02em;
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-light);
}

.content-card h3.subsection-title:first-child {
    margin-top: 0;
}

.content-card p {
    margin-bottom: var(--spacing-md);
    max-width: 100%;
    line-height: var(--line-height-relaxed);
}

.content-card ul {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    max-width: calc(100% - var(--spacing-lg));
}

.content-card li {
    margin-bottom: var(--spacing-sm);
    line-height: var(--line-height-relaxed);
    color: var(--text-secondary);
}

.feature-list {
    list-style: none;
    margin-left: 0;
}

.feature-list li {
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-xl);
    position: relative;
}

.feature-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: var(--font-weight-bold);
    font-size: 1.2em;
}

.feature-list li strong {
    color: var(--text-primary);
    font-weight: var(--font-weight-semibold);
}

.cta-card {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: var(--spacing-3xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    animation: fadeInUp 0.6s ease-out both;
    transition: background var(--transition-normal), border-color var(--transition-normal);
}

.cta-card .section-title {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: var(--spacing-md);
}

.cta-card .section-title::after {
    display: none;
}

.cta-card p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 100%;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-base);
    text-decoration: none;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--text-inverse);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--text-inverse);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--text-inverse);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: var(--spacing-3xl) var(--spacing-xl);
    margin-top: var(--spacing-4xl);
    border-top: 1px solid var(--border-light);
    position: relative;
    transition: background var(--transition-normal), border-color var(--transition-normal);
}

.footer-container {
    max-width: var(--max-width-content);
    margin: 0 auto;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-section h3 {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-weight: var(--font-weight-semibold);
}

.footer-section p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    max-width: 100%;
}

.footer-section a {
    color: var(--primary-color);
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: var(--primary-dark);
}

.footer-list {
    list-style: none;
    padding: 0;
    margin: var(--spacing-xs) 0;
}

.footer-list li {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    margin-bottom: 0.25rem;
    padding-left: var(--spacing-sm);
    position: relative;
}

.footer-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.footer-note {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--text-light);
    font-style: italic;
    margin-top: 0.25rem;
}

.footer-meta {
    font-size: var(--font-size-xs) !important;
    color: var(--text-light) !important;
    margin-top: var(--spacing-xs) !important;
}

.footer-bottom {
    border-top: 1px solid var(--border-light);
    padding-top: var(--spacing-md);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.footer-bottom p {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    margin: 0.25rem auto;
    text-align: center;
    max-width: 100%;
}

.footer-bottom p:first-child {
    margin-bottom: var(--spacing-xs);
    font-weight: var(--font-weight-medium);
}

/* ============================================
   Responsive Design
   ============================================ */

/* Hide sidebar on tablets and mobile */
@media (max-width: 1024px) {
    .sidebar-nav,
    .sidebar-toggle {
        display: none;
    }
    
    .story-header .header-content {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .story-header .main-nav {
        width: 100%;
        justify-content: flex-start;
        gap: var(--spacing-lg);
    }
    
    .story-header .site-title {
        font-size: var(--font-size-lg);
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-hero: 2.25rem;
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.75rem;
        --font-size-2xl: 1.25rem;
        --font-size-xl: 1.125rem;
        --spacing-4xl: 3rem;
        --spacing-3xl: 2.5rem;
        --spacing-2xl: 2rem;
        --spacing-xl: 1.5rem;
        --spacing-lg: 1.25rem;
    }
    
    /* Navigation - Mobile */
    .nav-container {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        padding: var(--spacing-md);
        position: relative;
    }
    
    .logo h1 {
        font-size: var(--font-size-lg);
        z-index: 1002;
        position: relative;
    }
    
    .header-controls {
        gap: var(--spacing-sm);
    }
    
    .mobile-menu-toggle {
        display: flex;
        z-index: 1001;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--bg-overlay);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: stretch;
        padding: var(--spacing-3xl) var(--spacing-lg) var(--spacing-lg);
        margin: 0;
        gap: 0;
        box-shadow: -4px 0 20px rgba(0, 0, 0, 0.2);
        transition: right var(--transition-normal), background var(--transition-normal);
        z-index: 1000;
        overflow-y: auto;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-menu::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 70px;
        background: var(--bg-overlay);
        border-bottom: 1px solid var(--border-light);
        transition: background var(--transition-normal), border-color var(--transition-normal);
    }
    
    .nav-menu li {
        width: 100%;
        margin: 0;
        border-bottom: 1px solid var(--border-light);
    }
    
    .nav-menu li:last-child {
        border-bottom: none;
    }
    
    .nav-menu a {
        display: block;
        width: 100%;
        padding: var(--spacing-md) var(--spacing-sm);
        font-size: var(--font-size-base);
        color: var(--text-primary);
        text-align: left;
        min-height: 48px;
        display: flex;
        align-items: center;
        transition: all var(--transition-fast);
        position: relative;
    }
    
    .nav-menu a::after {
        display: none;
    }
    
    .nav-menu a:hover,
    .nav-menu a.active {
        color: var(--primary-color);
        background: var(--border-accent);
        padding-left: var(--spacing-md);
    }
    
    /* Overlay when menu is open */
    .nav-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(0, 0, 0, 0.4);
        backdrop-filter: blur(2px);
        z-index: 999;
        opacity: 0;
        transition: opacity var(--transition-normal);
    }
    
    
    /* Hide sidebar and toggle button on mobile */
    .sidebar-nav,
    .sidebar-toggle {
        display: none;
    }
    
    .nav-overlay.active {
        display: block;
        opacity: 1;
    }
    
    /* Prevent body scroll when menu is open */
    body.menu-open {
        overflow: hidden;
    }
    
    /* Hero Section - Mobile */
    .hero {
        padding: var(--spacing-2xl) var(--spacing-md);
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
        line-height: 1.2;
    }
    
    .hero-subtitle {
        font-size: var(--font-size-base);
        line-height: 1.6;
    }
    
    .hero-key-message {
        padding: var(--spacing-md);
    }
    
    /* Story Hero - Mobile */
    .story-hero {
        padding: var(--spacing-2xl) var(--spacing-md);
    }
    
    .story-container {
        padding: 0 var(--spacing-md);
    }
    
    .story-title {
        font-size: var(--font-size-3xl);
        line-height: 1.2;
    }
    
    .story-lead {
        font-size: var(--font-size-base);
        line-height: 1.6;
    }
    
    /* Story Chapters - Mobile */
    .story-chapter {
        padding: var(--spacing-2xl) var(--spacing-md);
    }
    
    .chapter-header {
        margin-bottom: var(--spacing-lg);
        padding-bottom: var(--spacing-md);
    }
    
    .chapter-number {
        font-size: var(--font-size-xs);
    }
    
    .chapter-title {
        font-size: var(--font-size-2xl);
        line-height: 1.3;
    }
    
    .story-text {
        margin-bottom: var(--spacing-2xl);
    }
    
    .story-paragraph {
        font-size: var(--font-size-base);
        line-height: 1.7;
        margin-bottom: var(--spacing-md);
    }
    
    /* Narrative Scaffolding - Mobile */
    .narrative-bridge {
        padding: var(--spacing-2xl) 0;
    }
    
    .bridge-text {
        font-size: var(--font-size-lg);
    }
    
    .human-scale-callout {
        padding: var(--spacing-lg);
        margin: var(--spacing-xl) 0;
    }
    
    .callout-title {
        font-size: var(--font-size-lg);
    }
    
    .pull-quote {
        margin: var(--spacing-xl) 0;
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    
    .pull-quote blockquote {
        font-size: var(--font-size-base);
    }
    
    .story-transition {
        margin: var(--spacing-xl) 0;
    }
    
    .transition-text {
        font-size: var(--font-size-xs);
    }
    
    .story-pause {
        padding: var(--spacing-xl) 0;
    }
    
    .pause-text {
        font-size: var(--font-size-lg);
    }
    
    /* Visualizations - Mobile */
    .story-viz {
        margin: var(--spacing-2xl) 0;
    }
    
    .story-viz-container {
        padding: var(--spacing-md);
        border-radius: var(--radius-lg);
    }
    
    .story-viz-container .viz-title {
        font-size: var(--font-size-lg);
        margin-bottom: var(--spacing-md);
    }
    
    .story-viz-container .visualization {
        min-height: 300px;
        padding: var(--spacing-sm);
    }
    
    .story-viz-container .viz-caption {
        font-size: var(--font-size-xs);
        padding-top: var(--spacing-sm);
    }

    .scrolly-layout {
        grid-template-columns: 1fr;
    }

    .scrolly-sticky {
        position: relative;
        top: auto;
    }

    .story-viz-scrolly .story-viz-container {
        max-width: 96vw;
        padding: var(--spacing-lg) 0;
    }

    .scrolly-viz {
        width: 96vw;
        min-height: 60vh;
    }

    .scrolly-step {
        padding: var(--spacing-md);
    }

    .scrolly-stats {
        padding: var(--spacing-sm);
    }
    
    .story-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        margin: var(--spacing-lg) 0;
    }
    
    .story-card {
        padding: var(--spacing-md);
    }
    
    .story-card .card-title {
        font-size: var(--font-size-base);
    }
    
    .story-card p {
        font-size: var(--font-size-sm);
    }
    
    /* Implications Section - Mobile */
    .implications-section {
        padding: var(--spacing-lg);
        margin: var(--spacing-2xl) 0;
    }
    
    .implications-title {
        font-size: var(--font-size-xl);
    }
    
    .implications-highlight {
        flex-direction: column;
        text-align: center;
    }
    
    .implications-stat {
        font-size: var(--font-size-base);
    }
    
    .implications-stat strong {
        font-size: var(--font-size-lg);
    }
    
    .implications-context {
        font-size: var(--font-size-sm);
    }
    
    .implications-intro {
        font-size: var(--font-size-base);
    }
    
    .implications-grid {
        grid-template-columns: 1fr;
    }
    
    .implications-conclusion {
        flex-direction: column;
        font-size: var(--font-size-base);
        padding: var(--spacing-md);
    }
    
    /* Main Content - Mobile */
    .main-content {
        padding: 0 var(--spacing-md) var(--spacing-2xl);
    }
    
    .container {
        margin-bottom: var(--spacing-2xl);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
        margin-bottom: var(--spacing-md);
        padding-bottom: var(--spacing-sm);
    }
    
    .section-intro {
        font-size: var(--font-size-base);
    }
    
    /* Visualizations - Mobile */
    .viz-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .viz-container {
        padding: var(--spacing-md);
        border-radius: var(--radius-lg);
    }
    
    .viz-title {
        font-size: var(--font-size-lg);
    }
    
    .viz-controls {
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-xs);
    }
    
    .control-select {
        width: 100%;
        min-height: 48px;
        font-size: var(--font-size-base);
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .visualization {
        min-height: 300px;
        padding: var(--spacing-sm);
        border-radius: var(--radius-md);
    }
    
    .viz-caption {
        font-size: var(--font-size-xs);
        padding-top: var(--spacing-sm);
    }
    
    /* Methodology - Mobile */
    .methodology-section {
        padding: var(--spacing-lg) var(--spacing-md);
        border-radius: var(--radius-lg);
    }
    
    .methodology-subsection {
        margin-bottom: var(--spacing-lg);
    }
    
    .subsection-title {
        font-size: var(--font-size-lg);
        margin-bottom: var(--spacing-sm);
    }
    
    .methodology-subsection p {
        font-size: var(--font-size-sm);
        line-height: 1.6;
    }
    
    .methodology-subsection ul,
    .methodology-subsection ol {
        margin-left: var(--spacing-md);
    }
    
    .methodology-subsection li {
        font-size: var(--font-size-sm);
        line-height: 1.6;
    }
    
    /* Team - Mobile */
    .team-container {
        margin-top: var(--spacing-lg);
    }
    
    .team-member {
        padding: var(--spacing-md);
    }
    
    .member-name {
        font-size: var(--font-size-lg);
    }
    
    .member-role {
        font-size: var(--font-size-base);
    }
    
    .member-description {
        font-size: var(--font-size-sm);
    }
    
    /* Content Cards - Mobile */
    .content-card {
        padding: var(--spacing-md);
        border-radius: var(--radius-lg);
    }
    
    .content-card h3.subsection-title {
        font-size: var(--font-size-lg);
        margin-top: var(--spacing-lg);
    }
    
    .content-card p {
        font-size: var(--font-size-sm);
        line-height: 1.6;
    }
    
    /* CTA Cards - Mobile */
    .cta-card {
        padding: var(--spacing-lg);
        border-radius: var(--radius-lg);
    }
    
    .cta-card p {
        font-size: var(--font-size-base);
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-sm);
    }
    
    .btn {
        width: 100%;
        text-align: center;
        padding: var(--spacing-md);
        font-size: var(--font-size-base);
        min-height: 48px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    /* Footer - Mobile */
    .footer {
        padding: var(--spacing-xl) var(--spacing-md);
        margin-top: var(--spacing-2xl);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .footer-section h3 {
        font-size: var(--font-size-base);
    }
    
    .footer-section p {
        font-size: var(--font-size-xs);
    }
    
    /* Methodology Page Header - Mobile */
    .story-header .header-content {
        padding: var(--spacing-md);
    }
    
    .story-header .logo-icon {
        width: 32px;
        height: 32px;
    }
    
    .story-header .site-title {
        font-size: var(--font-size-base);
    }
    
    .story-header .main-nav {
        gap: var(--spacing-md);
        font-size: var(--font-size-sm);
    }
    
    .story-main {
        padding-top: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-hero: 1.75rem;
        --font-size-3xl: 1.5rem;
        --font-size-2xl: 1.25rem;
        --font-size-xl: 1.125rem;
        --spacing-4xl: 2.5rem;
        --spacing-3xl: 2rem;
        --spacing-2xl: 1.5rem;
    }
    
    /* Extra Small Mobile */
    .nav-container {
        padding: var(--spacing-sm);
    }
    
    .logo h1 {
        font-size: var(--font-size-base);
    }
    
    .mobile-menu-toggle {
        width: 26px;
        height: 26px;
    }
    
    .nav-menu {
        width: 260px;
        padding: var(--spacing-2xl) var(--spacing-md) var(--spacing-md);
    }
    
    .nav-menu a {
        font-size: var(--font-size-sm);
        padding: var(--spacing-sm);
        min-height: 44px;
    }
    
    .hero-title,
    .story-title {
        font-size: var(--font-size-2xl);
        line-height: 1.2;
    }
    
    .hero-subtitle,
    .story-lead {
        font-size: var(--font-size-sm);
    }
    
    .chapter-title {
        font-size: var(--font-size-xl);
    }
    
    .section-title {
        font-size: var(--font-size-xl);
    }
    
    .story-paragraph {
        font-size: var(--font-size-sm);
    }
    
    .story-viz-container {
        padding: var(--spacing-sm);
    }
    
    .story-viz-container .visualization {
        min-height: 250px;
        padding: var(--spacing-xs);
    }
    
    .visualization {
        min-height: 250px;
        padding: var(--spacing-xs);
    }
    
    .viz-container {
        padding: var(--spacing-sm);
    }
    
    .story-card {
        padding: var(--spacing-sm);
    }
    
    .content-card {
        padding: var(--spacing-sm);
    }
    
    .methodology-section {
        padding: var(--spacing-md) var(--spacing-sm);
    }
    
    .team-member {
        padding: var(--spacing-sm);
    }
    
    .cta-card {
        padding: var(--spacing-md);
    }
}

/* Landscape orientation on mobile */
@media (max-width: 768px) and (orientation: landscape) {
    .story-hero {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .story-chapter {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .visualization {
        min-height: 250px;
    }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    /* Larger touch targets */
    .nav-menu a {
        min-height: 44px;
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .control-select {
        min-height: 48px;
        touch-action: manipulation;
    }
    
    .btn {
        min-height: 48px;
        touch-action: manipulation;
    }
    
    /* Remove hover effects on touch devices */
    .story-card:hover,
    .viz-container:hover,
    .team-member:hover {
        transform: none;
    }
    
    /* Ensure buttons are easily tappable */
    a, button, .control-select, .btn {
        -webkit-tap-highlight-color: rgba(232, 93, 4, 0.2);
        touch-action: manipulation;
    }
}

/* Prevent horizontal scroll on mobile */
@media (max-width: 768px) {
    html, body {
        overflow-x: hidden;
        width: 100%;
    }
    
    * {
        max-width: 100%;
    }
    
    /* Ensure images and content don't overflow */
    img, svg, video {
        max-width: 100%;
        height: auto;
    }
}

/* ============================================
   Accessibility
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

*:focus-visible {
    outline: none;
}

/* ============================================
   Genoa Modal Styles (Interactive Enlarge View)
   ============================================ */

.genoa-modal-overlay {
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.genoa-modal-content {
    animation: modalFadeIn 0.3s ease-out;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.genoa-modal-header {
    background: var(--bg-card);
    transition: background var(--transition-normal);
}

.genoa-modal-title {
    font-family: var(--font-primary);
    letter-spacing: 0;
}

.genoa-modal-close {
    font-family: var(--font-primary);
}

.genoa-modal-close:hover {
    transform: scale(1.1);
}

.genoa-modal-close:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.genoa-modal-controls button {
    font-family: var(--font-primary);
    transition: all var(--transition-fast);
}

.genoa-modal-controls button:hover {
    background: var(--bg-secondary) !important;
    border-color: var(--primary-color) !important;
    color: var(--primary-color) !important;
    transform: translateY(-1px);
}

.genoa-modal-controls button:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.genoa-modal-controls button:active {
    transform: translateY(0);
}

.genoa-modal-viz-container {
    touch-action: none; /* Prevent default touch behaviors for better zoom/pan */
}

.genoa-tooltip {
    pointer-events: none;
    white-space: nowrap;
    max-width: 200px;
}

.genoa-tooltip::before {
    content: '';
    position: absolute;
    left: -6px;
    top: 50%;
    transform: translateY(-50%);
    border: 6px solid transparent;
    border-right-color: rgba(0, 0, 0, 0.85);
}

/* Click hint animation */
.click-hint {
    transition: opacity var(--transition-normal);
}

/* Ensure modal is accessible on mobile */
@media (max-width: 768px) {
    .genoa-modal-content {
        width: 100% !important;
        height: 100% !important;
        max-width: 100% !important;
        max-height: 100vh !important;
        border-radius: 0 !important;
    }
    
    .genoa-modal-header {
        padding: 16px !important;
    }
    
    .genoa-modal-title {
        font-size: 18px !important;
    }
    
    .genoa-modal-controls {
        padding: 10px 16px !important;
        font-size: 12px !important;
    }
    
    .genoa-modal-controls button {
        padding: 8px 12px !important;
        font-size: 14px !important;
    }
    
    .genoa-modal-controls > div:last-child {
        width: 100%;
        margin-left: 0 !important;
        margin-top: 8px;
        text-align: center;
        font-size: 11px !important;
    }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    .genoa-modal-controls button {
        min-height: 44px;
        min-width: 44px;
    }
    
    .genoa-modal-close {
        min-height: 44px;
        min-width: 44px;
    }
}

/* Dashboard layout for Land Cover visualization */
.landcover-dashboard-wrapper {
    display: flex;
    gap: 20px;
    width: 100%;
    max-width: 100%;
    flex-wrap: wrap;
}

.dashboard-controls-section-horizontal {
    margin-top: 0 !important;
}

.landcover-dashboard-panel {
    display: flex;
    flex-direction: column;
    gap: 20px;
    flex: 0 0 300px;
    min-width: 280px;
    max-width: 100%;
}

.dashboard-legend-section,
.dashboard-controls-section,
.dashboard-stats-section {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: 16px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    transition: background var(--transition-normal), border-color var(--transition-normal);
}

.dashboard-legend-section > div:first-child,
.dashboard-controls-section > div:first-child,
.dashboard-stats-section > div:first-child {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

@media (max-width: 1200px) {
    .landcover-dashboard-wrapper {
        flex-direction: column;
    }
    
    .layered-map-container {
        flex: 1 1 100% !important;
        min-width: 100% !important;
    }
    
    .landcover-dashboard-panel {
        flex: 1 1 100%;
        max-width: 100%;
        flex-direction: row;
        flex-wrap: wrap;
    }
    
    .dashboard-legend-section,
    .dashboard-controls-section,
    .dashboard-stats-section {
        flex: 1 1 calc(33.333% - 15px);
        min-width: 250px;
    }
}

@media (max-width: 768px) {
    .landcover-dashboard-wrapper {
        flex-direction: column;
        gap: 15px;
    }
    
    .landcover-dashboard-panel {
        flex: 1 1 100%;
        min-width: 100%;
        flex-direction: column;
    }
    
    .layered-map-container {
        flex: 1 1 100% !important;
        min-width: 100% !important;
    }
    
    .dashboard-legend-section,
    .dashboard-controls-section,
    .dashboard-controls-section-horizontal,
    .dashboard-stats-section {
        flex: 1 1 100%;
        min-width: 100%;
    }
}

/* Print styles */
@media print {
    .header,
    .footer,
    .viz-controls,
    .genoa-modal-overlay {
        display: none;
    }
    
    .hero {
        background: white;
    }
    
    .visualization {
        page-break-inside: avoid;
    }
}