/* 
 * EDM Roadmap 2026-2030 - Module 4.1: Current State Synopsis & Future Vision
 * Minimal black and white aesthetic inspired by impress.js demo and Black Arts Technologies
 */

/* ============================================
   GLOBAL STYLES & RESET
   ============================================ */

:root {
    /* Light Theme Colors */
    --color-bg: #ffffff;
    --color-text: #000000;
    --color-text-secondary: #666666;
    --color-text-light: #999999;
    --color-border: #000000;
    --color-border-light: #cccccc;
    --color-accent: #333333;
    
    /* Typography */
    --font-primary: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --font-mono: 'Courier New', Courier, monospace;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Dark Theme */
[data-theme="dark"] {
    --color-bg: #1a2332;
    --color-text: #ffffff;
    --color-text-secondary: #b8c4d4;
    --color-text-light: #8a9db3;
    --color-border: #ffffff;
    --color-border-light: #4a5a6e;
    --color-accent: #e0e6ed;
}

/* Legacy color variables for backward compatibility */
:root {
    --color-black: var(--color-text);
    --color-white: var(--color-bg);
    --color-gray-dark: var(--color-accent);
    --color-gray-medium: var(--color-text-secondary);
    --color-gray-light: var(--color-text-light);
    --color-gray-ultralight: var(--color-border-light);
}

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

body {
    font-family: var(--font-primary);
    background: var(--color-bg);
    color: var(--color-text);
    overflow: hidden;
    line-height: 1.6;
    font-weight: 300;
    letter-spacing: -0.02em;
    transition: background-color var(--transition-medium), color var(--transition-medium);
}

/* ============================================
   FALLBACK MESSAGE
   ============================================ */

.fallback-message {
    font-family: var(--font-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg);
    color: var(--color-text);
    padding: var(--spacing-md);
    text-align: center;
}

.impress-supported .fallback-message {
    display: none;
}

/* ============================================
   IMPRESS CONTAINER
   ============================================ */

#impress {
    width: 100%;
    height: 100%;
}

.impress-enabled #impress {
    perspective: 1000px;
}

/* ============================================
   STEP/SLIDE BASE STYLES
   ============================================ */

.step {
    position: relative;
    width: 1200px;
    padding: var(--spacing-xl);
    opacity: 0;
    transition: opacity 1s;
}

.step.active {
    opacity: 1;
}

/* Make all steps visible in overview mode */
.impress-on-overview .step {
    opacity: 1;
    cursor: pointer;
}

/* Make the overview slide itself non-clickable so clicks pass through to visible slides */
#overview.step {
    pointer-events: none !important;
}

/* Ensure other steps remain clickable in overview mode */
.impress-on-overview .step:not(#overview) {
    pointer-events: auto;
}

.step.slide {
    background: transparent;
}

/* ============================================
   SLIDE CONTENT CONTAINER
   ============================================ */

.slide-content {
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    text-align: left;
}

/* ============================================
   TYPOGRAPHY - Minimal & Clean
   ============================================ */

.slide-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.03em;
    line-height: 1.1;
    color: var(--color-black);
}

.slide-title.critical,
.slide-title.success,
.slide-title.emphasis {
    color: var(--color-black);
}

.slide-subtitle {
    font-size: 2rem;
    font-weight: 300;
    margin-bottom: var(--spacing-md);
    color: var(--color-gray-medium);
    letter-spacing: -0.02em;
}

.slide-tagline {
    font-size: 1.5rem;
    color: var(--color-gray-medium);
    font-weight: 300;
    margin-top: var(--spacing-md);
}

.slide-footer {
    margin-top: var(--spacing-lg);
    font-size: 1.2rem;
    color: var(--color-gray-light);
    font-weight: 300;
}

.slide-divider {
    width: 100px;
    height: 1px;
    background: var(--color-black);
    margin: var(--spacing-md) 0;
}

/* ============================================
   TITLE SLIDE (Slide 1)
   ============================================ */

#title .slide-title {
    font-size: 5rem;
    margin-bottom: var(--spacing-sm);
}

#title .slide-subtitle {
    font-size: 2.5rem;
}

#title .slide-tagline {
    border-top: 1px solid var(--color-black);
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

/* ============================================
   RISK BOXES (Slide 2)
   ============================================ */

.risk-box {
    border: 1px solid var(--color-black);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    transition: all var(--transition-fast);
}

.risk-box:hover {
    border-width: 2px;
}

.risk-box h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--color-black);
}

.risk-box .date {
    font-size: 1rem;
    color: var(--color-gray-medium);
    font-weight: 300;
}

/* ============================================
   STATUS LISTS (Slides 3 & 4)
   ============================================ */

.status-list {
    list-style: none;
    width: 100%;
    max-width: 800px;
}

.status-item {
    padding: var(--spacing-sm) 0;
    margin: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-gray-ultralight);
    transition: all var(--transition-fast);
}

.status-item:hover {
    border-bottom-color: var(--color-black);
    padding-left: var(--spacing-sm);
}

.status-item.critical,
.status-item.warning {
    border-bottom-color: var(--color-gray-medium);
}

.status-text {
    font-size: 1.2rem;
    color: var(--color-black);
    font-weight: 300;
}

/* ============================================
   ARCHITECTURE GRID (Slide 5)
   ============================================ */

.arch-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    width: 100%;
    max-width: 800px;
    margin-top: var(--spacing-md);
}

.arch-item {
    border: 1px solid var(--color-gray-ultralight);
    padding: var(--spacing-md);
    transition: all var(--transition-fast);
}

.arch-item:hover,
.arch-item.highlight {
    border-color: var(--color-black);
}

.arch-item h4 {
    font-size: 1.1rem;
    color: var(--color-black);
    margin-bottom: var(--spacing-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.arch-item p {
    font-size: 1rem;
    color: var(--color-gray-medium);
    font-weight: 300;
}

/* ============================================
   GOVERNANCE GAPS (Slide 6)
   ============================================ */

.gap-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    width: 100%;
    max-width: 800px;
    margin-top: var(--spacing-md);
}

.gap-item {
    padding: var(--spacing-md);
    border-left: 3px solid var(--color-black);
    transition: all var(--transition-fast);
}

.gap-item.high {
    border-left-width: 5px;
}

.gap-item:hover {
    transform: translateX(5px);
}

.gap-item h4 {
    font-size: 1.3rem;
    color: var(--color-black);
    margin-bottom: var(--spacing-xs);
    font-weight: 700;
}

.gap-item p {
    font-size: 1rem;
    color: var(--color-gray-medium);
    font-weight: 300;
}

/* ============================================
   IMPERATIVE BOX (Slide 7)
   ============================================ */

.imperative-box {
    border: 1px solid var(--color-black);
    padding: var(--spacing-xl);
    max-width: 800px;
    margin-top: var(--spacing-md);
}

.imperative-text {
    font-size: 1.5rem;
    line-height: 1.8;
    color: var(--color-black);
    margin: var(--spacing-md) 0;
    font-weight: 300;
}

.imperative-text strong {
    font-weight: 700;
    color: var(--color-black);
}

/* ============================================
   SOLUTION HERO (Slide 8)
   ============================================ */

.solution-hero {
    margin-bottom: var(--spacing-lg);
}

.solution-platform {
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: var(--spacing-sm);
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.solution-tagline {
    font-size: 1.8rem;
    color: var(--color-gray-medium);
    font-weight: 300;
}

.solution-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    max-width: 800px;
    margin-top: var(--spacing-lg);
}

.feature {
    font-size: 1.2rem;
    padding: var(--spacing-sm);
    border-left: 2px solid var(--color-black);
    font-weight: 300;
}

/* ============================================
   PILLARS GRID (Slide 9)
   ============================================ */

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    width: 100%;
    max-width: 900px;
    margin-top: var(--spacing-md);
}

.pillar {
    padding: var(--spacing-md);
    border: 1px solid var(--color-black);
    transition: all var(--transition-fast);
}

.pillar:hover {
    transform: translateY(-5px);
}

.pillar-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: var(--spacing-sm);
}

.pillar h3 {
    font-size: 1.3rem;
    color: var(--color-black);
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.pillar p {
    font-size: 1rem;
    color: var(--color-gray-medium);
    font-weight: 300;
}

/* ============================================
   MIGRATION STATUS (Slide 10)
   ============================================ */

.migration-status {
    margin-bottom: var(--spacing-lg);
}

.migration-status h3 {
    font-size: 2rem;
    color: var(--color-black);
    margin-bottom: var(--spacing-sm);
    font-weight: 300;
}

.status-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 1rem;
    font-weight: 300;
    margin-top: var(--spacing-sm);
    border: 1px solid var(--color-black);
}

/* ============================================
   FUTURE STATE GRID (Slide 12)
   ============================================ */

.future-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    max-width: 800px;
    margin-top: var(--spacing-md);
}

.future-item {
    padding: var(--spacing-md);
    border-left: 2px solid var(--color-black);
    transition: all var(--transition-fast);
}

.future-item:hover {
    transform: translateX(5px);
}

.future-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.future-item h4 {
    font-size: 1.3rem;
    color: var(--color-black);
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.future-item p {
    font-size: 1rem;
    color: var(--color-gray-medium);
    font-weight: 300;
}

/* ============================================
   GOVERNANCE GRID (Slide 13)
   ============================================ */

.governance-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    max-width: 800px;
    margin-top: var(--spacing-md);
}

.gov-item {
    padding: var(--spacing-md);
    border-left: 2px solid var(--color-black);
    transition: all var(--transition-fast);
}

.gov-item:hover {
    transform: translateX(5px);
}

.gov-item h4 {
    font-size: 1.1rem;
    color: var(--color-black);
    margin-bottom: var(--spacing-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.gov-item p {
    font-size: 0.95rem;
    color: var(--color-gray-medium);
    font-weight: 300;
}

/* ============================================
   TRANSFORMATION CONTAINER (Slide 14)
   ============================================ */

.transformation-container {
    display: flex;
    gap: var(--spacing-xl);
    align-items: flex-start;
    max-width: 900px;
}

.transform-side {
    flex: 1;
    padding: var(--spacing-lg);
    border: 1px solid var(--color-black);
}

.transform-side.current {
    border-color: var(--color-gray-medium);
}

.transform-side.future {
    border-color: var(--color-black);
}

.transform-side h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-black);
    font-weight: 700;
}

.transform-list {
    list-style: disc;
    text-align: left;
    padding-left: var(--spacing-md);
}

.transform-list li {
    padding: var(--spacing-xs) 0;
    color: var(--color-gray-dark);
    font-size: 1rem;
    font-weight: 300;
    list-style-position: inside;
}

/* ============================================
   SOLUTION FEATURES (Slide 8)
   ============================================ */

.solution-hero {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.solution-platform {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: var(--spacing-sm);
}

.solution-tagline {
    font-size: 1.3rem;
    color: var(--color-gray-medium);
    font-weight: 300;
}

.solution-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    max-width: 800px;
    margin: 0 auto;
}

.feature {
    padding: var(--spacing-md);
    border: 1px solid var(--color-gray-ultralight);
    font-size: 1.1rem;
    color: var(--color-gray-dark);
    font-weight: 300;
    transition: all var(--transition-fast);
}

.feature:hover {
    border-color: var(--color-black);
}

/* ============================================
   PILLARS GRID (Slide 9)
   ============================================ */

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    width: 100%;
    max-width: 1000px;
    margin-top: var(--spacing-md);
}

.pillar {
    padding: var(--spacing-md);
    border-radius: 15px;
    border: 2px solid var(--primary-blue);
    background: rgba(255, 255, 255, 0.05);
    transition: all var(--transition-fast);
}

.pillar:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 120, 212, 0.4);
}

.pillar-1 {
    border-color: var(--primary-blue);
}

.pillar-2 {
    border-color: var(--success-green);
}

.pillar-3 {
    border-color: var(--warning-orange);
}

.pillar-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-light);
    margin-bottom: var(--spacing-sm);
}

.pillar h3 {
    font-size: 1.5rem;
    color: var(--neutral-white);
    margin-bottom: var(--spacing-sm);
}

.pillar p {
    font-size: 1.1rem;
    color: var(--neutral-light);
}

/* ============================================
   TIMELINE PREVIEW (Slide 10)
   ============================================ */

.timeline-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.phase {
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    border: 2px solid var(--primary-blue);
    min-width: 220px;
    transition: all var(--transition-fast);
}

.phase:hover {
    transform: scale(1.1);
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-light);
}

.phase h4 {
    font-size: 1.8rem;
    color: var(--primary-light);
    margin-bottom: var(--spacing-xs);
}

.phase p {
    font-size: 1.2rem;
    color: var(--neutral-light);
}

.arrow {
    font-size: 3rem;
    color: var(--primary-blue);
}

.cta-text {
    font-size: 1.6rem;
    color: var(--primary-light);
    font-style: italic;
    margin-top: var(--spacing-lg);
}

/* ============================================
   CALL TO ACTION (Slide 17)
   ============================================ */

.cta-box {
    background: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-xl);
    border-radius: 15px;
    border: 2px solid var(--primary-blue);
    max-width: 900px;
}

.cta-box h3 {
    font-size: 2rem;
    color: var(--primary-light);
    margin-bottom: var(--spacing-md);
}

.cta-message {
    font-size: 1.5rem;
    line-height: 2;
    color: var(--neutral-white);
    margin: var(--spacing-lg) 0;
}

.cta-footer {
    font-size: 1.3rem;
    color: var(--neutral-medium);
    font-style: italic;
    margin-top: var(--spacing-md);
}

/* ============================================
   MIGRATION STATUS (Slide 10)
   ============================================ */

.migration-status {
    margin-bottom: var(--spacing-lg);
}

.migration-status h3 {
    font-size: 2rem;
    color: var(--neutral-white);
    margin-bottom: var(--spacing-sm);
}

.status-badge {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 30px;
    font-size: 1.2rem;
    font-weight: 600;
    margin-top: var(--spacing-sm);
}

.status-badge.success {
    background: rgba(16, 124, 16, 0.2);
    color: var(--success-green);
    border: 2px solid var(--success-green);
}

/* ============================================
   ARCHITECTURE HIGHLIGHT (Slide 11)
   ============================================ */

.arch-item.highlight {
    border-color: var(--success-green);
    background: rgba(16, 124, 16, 0.1);
}

.arch-item.highlight h4 {
    color: var(--success-green);
}

/* ============================================
   FUTURE STATE GRID (Slide 12)
   ============================================ */

.future-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.future-item {
    padding: var(--spacing-md);
    border-left: 2px solid var(--color-black);
    transition: all var(--transition-fast);
}

.future-item:hover {
    transform: translateX(5px);
}

.future-item h4 {
    font-size: 1.3rem;
    color: var(--color-black);
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.future-item p {
    font-size: 1rem;
    color: var(--color-gray-dark);
    font-weight: 300;
}

/* ============================================
   GOVERNANCE GRID (Slide 13)
   ============================================ */

.governance-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    max-width: 1000px;
    margin-top: var(--spacing-md);
}

.gov-item {
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-left: 4px solid var(--primary-blue);
    border-radius: 10px;
    transition: all var(--transition-fast);
}

.gov-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: scale(1.05);
    border-left-color: var(--primary-light);
}

.gov-item h4 {
    font-size: 1.3rem;
    color: var(--primary-light);
    margin-bottom: var(--spacing-xs);
}

.gov-item p {
    font-size: 1rem;
    color: var(--neutral-light);
}

/* ============================================
   TRANSFORMATION CONTAINER (Slide 14)
   ============================================ */

.transformation-container {
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.transform-side {
    flex: 1 1 0;
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
    min-height: 400px;
    display: flex;
    flex-direction: column;
    width: 50%;
}

.transform-side.current {
    border-color: var(--color-border-light);
}

.transform-side.future {
    border-color: var(--color-border);
}

.transform-side h3 {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    font-weight: 700;
}

.transform-list {
    list-style: disc;
    text-align: left;
    padding-left: var(--spacing-md);
}

.transform-list li {
    padding: var(--spacing-xs) 0;
    color: var(--color-accent);
    font-size: 1.1rem;
    font-weight: 300;
    list-style-position: inside;
    line-height: 1.6;
}

/* ============================================
   EVOLUTION FLOW (Slide 15)
   ============================================ */

.evolution-flow {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-md);
    max-width: 700px;
}

.evolution-step {
    width: 100%;
    padding: var(--spacing-md);
    border-left: 3px solid var(--color-gray-ultralight);
    transition: all var(--transition-fast);
}

.evolution-step.highlight {
    border-left-color: var(--color-black);
    border-left-width: 5px;
}

.evolution-step:hover {
    transform: translateX(5px);
}

.evolution-step h4 {
    font-size: 0.9rem;
    color: var(--color-gray-medium);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 300;
}

.role-title {
    font-size: 1.4rem;
    color: var(--color-black);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.evolution-step.highlight .role-title {
    font-size: 1.6rem;
}

.role-desc {
    font-size: 1rem;
    color: var(--color-gray-medium);
    margin-top: var(--spacing-sm);
    font-weight: 300;
}

/* ============================================
   TIMELINE PHASES (Slide 16)
   ============================================ */

#timeline .slide-title {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.timeline-phases {
    display: flex;
    flex-wrap: nowrap;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    justify-content: space-between;
    max-width: 100%;
}

.phase-detail {
    flex: 1 1 0;
    min-width: 0;
    padding: var(--spacing-md);
    border: 1px solid var(--color-black);
    transition: all var(--transition-fast);
}

.phase-detail:hover {
    transform: translateY(-3px);
}

.phase-detail h3 {
    font-size: 1.5rem;
    color: var(--color-black);
    margin-bottom: 0.5rem;
    font-weight: 700;
    line-height: 1.2;
}

.phase-dates {
    font-size: 1.1rem;
    color: var(--color-gray-medium);
    font-weight: 300;
    margin-bottom: var(--spacing-sm);
}

.phase-list {
    list-style: disc;
    text-align: left;
    padding-left: var(--spacing-md);
    margin: 0;
}

.phase-list li {
    font-size: 0.95rem;
    color: var(--color-gray-dark);
    padding: 0.25rem 0;
    font-weight: 300;
    line-height: 1.5;
}

/* ============================================
   CALL TO ACTION (Slide 17)
   ============================================ */

.cta-box {
    border: 1px solid var(--color-black);
    padding: var(--spacing-xl);
    max-width: 800px;
}

.cta-box h3 {
    font-size: 2rem;
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.cta-message {
    font-size: 1.3rem;
    line-height: 2;
    color: var(--color-gray-dark);
    margin: var(--spacing-lg) 0;
    font-weight: 300;
}

.cta-footer {
    font-size: 1.1rem;
    color: var(--color-gray-medium);
    margin-top: var(--spacing-md);
    font-weight: 300;
}

/* ============================================
   NAVIGATION HINT
   ============================================ */

.hint {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-white);
    color: var(--color-black);
    padding: var(--spacing-xs) var(--spacing-md);
    border: 1px solid var(--color-black);
    font-size: 0.85rem;
    z-index: 10000;
    opacity: 0.6;
    transition: opacity var(--transition-fast);
    font-weight: 300;
}

.hint:hover {
    opacity: 1;
}

/* ============================================
   DAMA WHEEL LINK
   ============================================ */



/* ============================================
   VIDEO MODAL
   ============================================ */

.video-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10002;
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-modal.hidden {
    display: none;
}

.video-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 1;
}

.video-modal-content {
    position: relative;
    width: 90%;
    max-width: 1200px;
    z-index: 2;
    animation: videoModalSlideIn 0.3s ease-out;
}

@keyframes videoModalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.video-modal-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: transparent;
    border: none;
    color: var(--color-bg);
    font-size: 2.5rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast);
    z-index: 3;
}

.video-modal-close:hover {
    color: var(--color-border-light);
}

.video-container {
    position: relative;
    width: 100%;
    background: #000;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.video-container video {
    width: 100%;
    height: auto;
    display: block;
}

/* Responsive video modal */
@media (max-width: 768px) {
    .video-modal-content {
        width: 95%;
    }
    
    .video-modal-close {
        top: -35px;
        font-size: 2rem;
    }
}

/* ============================================
   HAMBURGER MENU & DARK MODE TOGGLE
   ============================================ */

.header-controls {
    position: fixed;
    top: 20px;
    right: 20px;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    z-index: 10001;
}

.dark-mode-toggle {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-primary);
    border-radius: 4px;
}

.dark-mode-toggle:hover {
    opacity: 0.8;
    transform: translateY(-1px);
}

.hamburger-menu {
    position: relative;
}

.hamburger-button {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    padding: var(--spacing-xs);
    cursor: pointer;
    transition: all var(--transition-fast);
    border-radius: 4px;
    width: 40px;
    height: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
}

.hamburger-button:hover {
    opacity: 0.8;
    transform: translateY(-1px);
}

.hamburger-line {
    width: 20px;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition-fast);
}

.hamburger-button.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger-button.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger-button.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.nav-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    margin-top: var(--spacing-xs);
    min-width: 200px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
}

.nav-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

[data-theme="dark"] .nav-menu {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.nav-menu-item {
    display: block;
    padding: var(--spacing-sm);
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 300;
    border-bottom: 1px solid var(--color-border-light);
    transition: all var(--transition-fast);
}

.nav-menu-item:hover {
    background: var(--color-border-light);
    padding-left: calc(var(--spacing-sm) + 5px);
}

.nav-menu-item:last-child {
    border-bottom: none;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1200px) {
    .step {
        width: 700px;
        padding: var(--spacing-md);
    }
    
    .slide-title {
        font-size: 3rem;
    }
    
    .arch-grid,
    .pillars-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .step {
        width: 500px;
    }
    
    .arch-grid,
    .pillars-grid,
    .gap-container,
    .solution-features,
    .future-grid,
    .governance-grid {
        grid-template-columns: 1fr;
    }
    
    .header-controls {
        top: 15px;
        right: 15px;
    }
}

/* ============================================
   ANIMATIONS & EFFECTS
   ============================================ */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.step.active .slide-content {
    animation: fadeIn 0.6s ease-out;
}

/* Smooth scrolling for overview */
#overview {
    display: none;
}

.impress-on-overview #overview {
    display: block;
}

/* ============================================
   MODULE 4.4: TIMELINE STYLES
   ============================================ */

/* Timeline-specific body override */
body.timeline-page {
    overflow: auto;
}

/* Timeline Container */
.timeline-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-lg);
    min-height: 100vh;
}

/* Timeline Header */
.timeline-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-black);
}

.timeline-header h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
    color: var(--color-black);
}

.timeline-subtitle {
    font-size: 1.2rem;
    font-weight: 300;
    color: var(--color-gray-medium);
}

/* Timeline Wrapper */
.timeline-wrapper {
    margin: var(--spacing-xl) auto;
    padding: var(--spacing-xl) 0;
}

/* Timeline Visual */
.timeline-visual {
    position: relative;
    padding: var(--spacing-xl) 0;
}

/* Timeline Title */
.timeline-title {
    text-align: left;
    margin-bottom: var(--spacing-xl);
}

.timeline-title h2 {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-black);
    margin-bottom: var(--spacing-xs);
}

.timeline-template-label {
    font-size: 1rem;
    font-weight: 300;
    color: var(--color-gray-medium);
    background-color: #d4ed9f;
    display: inline-block;
    padding: 4px 12px;
    margin-top: var(--spacing-xs);
}

/* Timeline Line Container */
.timeline-line-container {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-xl) 0;
}

/* Timeline Line */
.timeline-line {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    padding: 80px 40px;
}

.timeline-line::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 3px;
    background-color: var(--color-black);
    z-index: 0;
    transform: translateY(-50%);
}

/* Year Container */
.year-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 1;
    flex: 1;
}

/* Year Box */
.year-box {
    background-color: var(--color-white);
    border: 3px solid var(--color-black);
    border-radius: 15px;
    padding: 20px 30px;
    min-width: 160px;
    text-align: center;
    position: relative;
    z-index: 2;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-medium);
}

.year-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.15);
}

.year-text {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-black);
    letter-spacing: -0.02em;
}

/* Connection Point */
.connection-point {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: var(--color-white);
    border: 3px solid var(--color-black);
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 3;
}

.connection-point.color-0 {
    background-color: #86D16A;
    border-color: #86D16A;
}

.connection-point.color-1 {
    background-color: #D9534F;
    border-color: #D9534F;
}

.connection-point.color-2 {
    background-color: #FFA500;
    border-color: #FFA500;
}

.connection-point.color-3 {
    background-color: #4A90E2;
    border-color: #4A90E2;
}

/* Callout Box */
.callout {
    position: absolute;
    width: 250px;
    background-color: var(--color-white);
    border: 2px solid var(--color-black);
    border-radius: 10px;
    padding: var(--spacing-md);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    z-index: 4;
}

.callout-top {
    bottom: 100%;
    margin-bottom: 40px;
}

.callout-bottom {
    top: 100%;
    margin-top: 40px;
}

/* Color borders for callouts */
.callout.color-0 {
    border-color: #86D16A;
    border-width: 3px;
}

.callout.color-1 {
    border-color: #D9534F;
    border-width: 3px;
}

.callout.color-2 {
    border-color: #FFA500;
    border-width: 3px;
}

.callout.color-3 {
    border-color: #4A90E2;
    border-width: 3px;
}

/* Callout connector line */
.callout::after {
    content: '';
    position: absolute;
    left: 50%;
    width: 2px;
    background-color: var(--color-black);
    transform: translateX(-50%);
    z-index: -1;
}

.callout-top::after {
    top: 100%;
    height: 40px;
}

.callout-bottom::after {
    bottom: 100%;
    height: 40px;
}

.callout.color-0::after {
    background-color: #86D16A;
}

.callout.color-1::after {
    background-color: #D9534F;
}

.callout.color-2::after {
    background-color: #FFA500;
}

.callout.color-3::after {
    background-color: #4A90E2;
}

/* Callout Year Label */
.callout-year {
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

.callout.color-0 .callout-year {
    color: #86D16A;
}

.callout.color-1 .callout-year {
    color: #D9534F;
}

.callout.color-2 .callout-year {
    color: #FFA500;
}

.callout.color-3 .callout-year {
    color: #4A90E2;
}

/* Initiatives List */
.initiatives-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.initiative-item {
    padding: var(--spacing-xs) 0;
    margin: var(--spacing-xs) 0;
    cursor: pointer;
    transition: all var(--transition-fast);
    border-bottom: 1px solid var(--color-gray-ultralight);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
}

.initiative-item:hover {
    transform: translateX(3px);
    border-bottom-color: var(--color-black);
}

.initiative-item:last-child {
    border-bottom: none;
}

.initiative-pillar-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 3px;
    color: var(--color-white);
    flex-shrink: 0;
}

.initiative-title {
    font-size: 0.85rem;
    color: var(--color-black);
    font-weight: 300;
    line-height: 1.4;
}

.initiatives-placeholder {
    font-size: 0.9rem;
    color: var(--color-gray-medium);
    font-style: italic;
    text-align: center;
    padding: var(--spacing-sm) 0;
}

/* Timeline Legend */
.timeline-legend {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-ultralight);
}

.timeline-legend h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
}

.legend-items {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

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

.legend-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 4px;
    color: var(--color-white);
    font-weight: 700;
    font-size: 0.8rem;
}

.legend-badge.pillar-1 {
    background-color: #4A90E2;
}

.legend-badge.pillar-2 {
    background-color: #50C878;
}

.legend-badge.pillar-3 {
    background-color: #9B59B6;
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1;
}

.modal-content {
    position: relative;
    background-color: var(--color-white);
    max-width: 700px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    z-index: 2;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--color-gray-medium);
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast);
    z-index: 3;
}

.modal-close:hover {
    color: var(--color-black);
}

.modal-header {
    padding: var(--spacing-xl);
    padding-right: 60px;
    border-bottom: 1px solid var(--color-gray-ultralight);
}

.modal-header h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

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

.modal-badge {
    padding: 4px 12px;
    border-radius: 4px;
    color: var(--color-white);
    font-weight: 700;
    font-size: 0.85rem;
}

.modal-year {
    padding: 4px 12px;
    background-color: var(--color-gray-ultralight);
    color: var(--color-black);
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
}

.modal-priority {
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
}

.modal-priority.priority-critical {
    background-color: #D9534F;
    color: var(--color-white);
}

.modal-priority.priority-high {
    background-color: #FFA500;
    color: var(--color-white);
}

.modal-priority.priority-medium {
    background-color: #4A90E2;
    color: var(--color-white);
}

.modal-priority.priority-low {
    background-color: var(--color-gray-light);
    color: var(--color-white);
}

.modal-body {
    padding: var(--spacing-xl);
}

.modal-section {
    margin-bottom: var(--spacing-lg);
}

.modal-section:last-child {
    margin-bottom: 0;
}

.modal-section h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.modal-section p {
    font-size: 1rem;
    color: var(--color-gray-dark);
    line-height: 1.7;
    font-weight: 300;
}

.budget-amount {
    font-size: 1.3rem;
    font-weight: 700;
    color: #50C878;
}

/* Back Link */
.back-link {
    position: fixed;
    top: 20px;
    left: 20px;
    background: var(--color-white);
    color: var(--color-black);
    padding: var(--spacing-xs) var(--spacing-md);
    border: 1px solid var(--color-black);
    text-decoration: none;
    font-size: 0.85rem;
    z-index: 10000;
    opacity: 0.6;
    transition: opacity var(--transition-fast);
    font-weight: 300;
}

.back-link:hover {
    opacity: 1;
}

/* Responsive Timeline */
@media (max-width: 1200px) {
    .timeline-line {
        padding: 60px 20px;
    }
    
    .year-box {
        min-width: 120px;
        padding: 15px 20px;
    }
    
    .year-text {
        font-size: 1.5rem;
    }
    
    .callout {
        width: 200px;
        padding: var(--spacing-sm);
    }
}

@media (max-width: 768px) {
    .timeline-line {
        flex-direction: column;
        padding: var(--spacing-lg);
    }
    
    .timeline-line::before {
        top: 0;
        bottom: 0;
        left: 50%;
        width: 2px;
        height: auto;
    }
    
    .year-container {
        margin: var(--spacing-lg) 0;
    }
    
    .callout-top,
    .callout-bottom {
        position: relative;
        margin: var(--spacing-md) 0;
        width: 100%;
        max-width: 300px;
    }
    
    .callout-top::after,
    .callout-bottom::after {
        display: none;
    }
}