/* ===================================
   De Stijl Interactive Pitch Deck
   Mobile-First Responsive Design
   =================================== */

/* CSS Variables - De Stijl Color Palette */
:root {
    --color-red: #a71922;
    --color-blue: #195694;
    --color-yellow: #f2dd56;
    --color-black: #000000;
    --color-white: #FFFFFF;
    --color-gray: #F5F5F5;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    --transition-smooth: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-sans);
    background-color: var(--color-white);
    color: var(--color-black);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Container */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
}

/* Section Titles */
.section-title {
    font-size: 2.5rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-md);
    line-height: 1;
}

@media (min-width: 768px) {
    .section-title {
        font-size: 4rem;
    }
}

@media (min-width: 1024px) {
    .section-title {
        font-size: 5rem;
    }
}

/* ===================================
   Geometric Background - Van Doesburg Style
   Diagonal, dynamic, constantly animated
   =================================== */
.geometric-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    pointer-events: auto;
    z-index: 1;
    overflow: hidden;
    clip-path: inset(0 0 0 0);
}

.geo-rect,
.geo-diagonal {
    position: absolute;
    will-change: transform;
}

/* Static shapes removed - now generated dynamically from Ethereum */

/* ===================================
   Hero Section
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    padding: var(--spacing-md) var(--spacing-sm);
    overflow: hidden;
    background-color: transparent;
    pointer-events: none;
    isolation: isolate;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 10;
    pointer-events: auto;
}

.hero-title {
    font-size: 3rem;
    font-weight: 900;
    line-height: 0.9;
    text-transform: uppercase;
    letter-spacing: -0.03em;
    margin-bottom: var(--spacing-md);
    position: relative;
    z-index: 10;
    background-color: var(--color-white);
    padding: var(--spacing-sm) var(--spacing-md);
}

.title-line {
    display: block;
    position: relative;
    z-index: 10;
}

.hero-tagline {
    font-size: 1rem;
    font-weight: 400;
    letter-spacing: -0.1em;
    text-transform: uppercase;
    opacity: 1;
    margin-top: var(--spacing-md);
    position: relative;
    z-index: 10;
    background-color: var(--color-white);

    padding: var(--spacing-xs) var(--spacing-xs);
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 6rem;
    }
    .hero-tagline {
        font-size: 1.25rem;
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: 8rem;
    }
    .hero-tagline {
        font-size: 1.5rem;
    }
}


/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 60px;
    background-color: var(--color-black);
    opacity: 0.3;
    z-index: 5;
    pointer-events: none;
}

.scroll-line {
    width: 100%;
    height: 30px;
    background-color: var(--color-black);
    animation: scroll-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(30px); }
}

/* ===================================
   Vision Section
   =================================== */
.vision {
    min-height: 100vh;
    padding: var(--spacing-xl) 0;
    background-color: var(--color-gray);
    position: relative;
    display: flex;
    align-items: center;
}

.vision-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    align-items: center;
}

.vision-text {
    position: relative;
    z-index: 10;
}

@media (min-width: 1024px) {
    .vision-grid {
        grid-template-columns: 2fr 1fr;
        gap: var(--spacing-lg);
    }
}

.vision-content p {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    opacity: 0;
    transform: translateY(30px);
}

@media (min-width: 768px) {
    .vision-content p {
        font-size: 1.25rem;
    }
}

.vision-accent {
    position: relative;
    height: 300px;
    display: block;
    z-index: 1;
}

@media (max-width: 768px) {
    .vision-accent {
        height: 200px;
        margin-top: var(--spacing-md);
    }
}

.accent-block {
    position: absolute;
    will-change: transform;
    z-index: 1; /* Behind letters */
}

.accent-red {
    width: 150px;
    height: 200px;
    background-color: var(--color-red);
    top: 0;
    left: 0;
}

.accent-blue {
    width: 180px;
    height: 180px;
    background-color: var(--color-blue);
    bottom: 0;
    right: 0;
}

@media (max-width: 768px) {
    .accent-red {
        width: 100px;
        height: 130px;
    }
    
    .accent-blue {
        width: 120px;
        height: 120px;
    }
}

.tx-letter {
    position: absolute;
    font-family: var(--font-mono);
    font-weight: 900;
    color: var(--color-black);
    opacity: 0;
    will-change: transform, opacity;
    pointer-events: none;
    text-transform: uppercase;
    letter-spacing: -0.05em;
    line-height: 1;
    z-index: 100; /* Well above accent blocks */
}

/* ===================================
   Projects Section
   =================================== */
.projects {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-white);
    position: relative;
    overflow: visible;
}

.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    overflow: visible;
}

@media (min-width: 768px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
        overflow: visible;
    }
}

@media (min-width: 1024px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-xl);
        overflow: visible;
    }
}

.project-card {
    background-color: var(--color-white);
    overflow: hidden;
    cursor: pointer;
    transition: transform var(--transition-fast);
    position: relative;
}

.project-card:hover {
    transform: translateY(-8px);
}

.project-image {
    position: relative;
    width: 100%;
    aspect-ratio: 4/3;
    overflow: hidden;
    background-color: var(--color-gray);
    z-index: 1;
}

.project-img,
.project-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.project-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    color: var(--color-black);
    opacity: 0.3;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 1;
    transition: opacity var(--transition-fast);
    transform: translateY(100%);
    will-change: transform, opacity;
}

.project-card[data-color="red"] .project-overlay {
    background-color: var(--color-red);
}

.project-card[data-color="blue"] .project-overlay {
    background-color: var(--color-blue);
}

.project-card[data-color="yellow"] .project-overlay {
    background-color: var(--color-yellow);
}

.project-card:hover .project-overlay {
    opacity: 0.8;
    transform: translateY(0);
}

.project-info {
    padding: var(--spacing-md);
    position: relative;
    z-index: 2;
    background-color: var(--color-white);
}

.project-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.project-meta {
    font-size: 0.875rem;
    opacity: 0.6;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.project-description {
    font-size: 1rem;
    line-height: 1.6;
    opacity: 0.8;
}

@media (min-width: 768px) {
    .project-title {
        font-size: 1.75rem;
    }
}

/* ===================================
   Future Series Section
   =================================== */
.future {
    min-height: 100vh;
    padding: var(--spacing-xl) 0;
    background-color: var(--color-black);
    color: var(--color-white);
    position: relative;
    display: flex;
    align-items: center;
}

.future .section-title {
    color: var(--color-white);
}

.future-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

@media (min-width: 768px) {
    .future-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

.future-block {
    padding: var(--spacing-md);
    border-left: 4px solid var(--color-red);
    opacity: 0;
    transform: translateX(-30px);
}

.future-block:nth-child(2) {
    border-color: var(--color-blue);
}

.future-block:nth-child(3) {
    border-color: var(--color-yellow);
}

.future-block:nth-child(4) {
    border-color: var(--color-red);
}

.future-number {
    font-size: 3rem;
    font-weight: 900;
    opacity: 0.2;
    margin-bottom: var(--spacing-sm);
    line-height: 1;
}

.future-subtitle {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
}

.future-block p {
    font-size: 1rem;
    line-height: 1.8;
    opacity: 0.9;
}

@media (min-width: 768px) {
    .future-subtitle {
        font-size: 1.75rem;
    }
    .future-block p {
        font-size: 1.125rem;
    }
}

/* Stats */
.future-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    padding-top: var(--spacing-lg);
    border-top: 2px solid rgba(255, 255, 255, 0.1);
}

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

.stat-number {
    font-size: 3rem;
    font-weight: 900;
    color: var(--color-red);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.7;
}

@media (min-width: 768px) {
    .stat-number {
        font-size: 4rem;
    }
    .stat-label {
        font-size: 1rem;
    }
}

/* ===================================
   Timeline Section
   =================================== */
.timeline {
    min-height: 100vh;
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg);
    display: flex;
    align-items: center;
}

.timeline-content {
    position: relative;
    max-width: 800px;
    margin: var(--spacing-xl) auto 0;
    padding: 0 var(--spacing-md);
}

/* Vertical line */
.timeline-line {
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(
        to bottom,
        var(--color-red) 0%,
        var(--color-red) 14%,
        var(--color-blue) 14%,
        var(--color-blue) 28%,
        var(--color-yellow) 28%,
        var(--color-yellow) 42%,
        var(--color-red) 42%,
        var(--color-red) 56%,
        var(--color-blue) 56%,
        var(--color-blue) 70%,
        var(--color-yellow) 70%,
        var(--color-yellow) 84%,
        var(--color-red) 84%,
        var(--color-red) 100%
    );
}

.timeline-item {
    position: relative;
    padding-left: 60px;
    margin-bottom: var(--spacing-lg);
    opacity: 0;
    transform: translateX(-30px);
}

.timeline-item:last-child {
    margin-bottom: 0;
}

/* Marker dots */
.timeline-marker {
    position: absolute;
    left: 12px;
    top: 8px;
    width: 20px;
    height: 20px;
    background-color: var(--color-white);
    border: 4px solid var(--color-red);
    border-radius: 50%;
    z-index: 2;
}

/* Alternate marker colors */
.timeline-item[data-phase="q1"] .timeline-marker,
.timeline-item[data-phase="q3"] .timeline-marker {
    border-color: var(--color-blue);
}

.timeline-item[data-phase="q2"] .timeline-marker,
.timeline-item[data-phase="q4"] .timeline-marker {
    border-color: var(--color-yellow);
}

.timeline-item[data-phase="middle"] .timeline-marker {
    border-color: var(--color-red);
    width: 24px;
    height: 24px;
    left: 10px;
}

.timeline-item[data-phase="end"] .timeline-marker {
    border-color: var(--color-black);
}

/* Timeline cards */
.timeline-card {
    background-color: var(--color-white);
    padding: var(--spacing-md);
    border-left: 4px solid var(--color-red);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.timeline-card:hover {
    transform: translateX(8px);
    box-shadow: -8px 8px 0 var(--color-black);
}

/* Alternate card border colors */
.timeline-item[data-phase="q1"] .timeline-card,
.timeline-item[data-phase="q3"] .timeline-card {
    border-color: var(--color-blue);
}

.timeline-item[data-phase="q2"] .timeline-card,
.timeline-item[data-phase="q4"] .timeline-card {
    border-color: var(--color-yellow);
}

.timeline-item[data-phase="middle"] .timeline-card {
    border-width: 6px;
    border-color: var(--color-red);
}

.timeline-item[data-phase="end"] .timeline-card {
    border-color: var(--color-black);
    border-width: 6px;
}

.timeline-label {
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-red);
    margin-bottom: var(--spacing-xs);
    letter-spacing: 0.1em;
}

.timeline-item[data-phase="q1"] .timeline-label,
.timeline-item[data-phase="q3"] .timeline-label {
    color: var(--color-blue);
}

.timeline-item[data-phase="q2"] .timeline-label,
.timeline-item[data-phase="q4"] .timeline-label {
    color: var(--color-yellow);
}

.timeline-item[data-phase="middle"] .timeline-label {
    font-size: 1rem;
    color: var(--color-red);
}

.timeline-item[data-phase="end"] .timeline-label {
    color: var(--color-black);
}

.timeline-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
}

.timeline-description {
    font-size: 1rem;
    line-height: 1.8;
    opacity: 0.9;
}

@media (min-width: 768px) {
    .timeline-line {
        left: 50px;
    }
    
    .timeline-item {
        padding-left: 100px;
    }
    
    .timeline-marker {
        left: 42px;
    }
    
    .timeline-item[data-phase="middle"] .timeline-marker {
        left: 40px;
    }
    
    .timeline-title {
        font-size: 1.75rem;
    }
    
    .timeline-description {
        font-size: 1.125rem;
    }
}

/* ===================================
   Call to Action Section
   =================================== */
.cta {
    min-height: 100vh;
    padding: var(--spacing-xl) 0;
    background-color: var(--color-white);
    color: var(--color-black);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
}

/* De Stijl grid background */
.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        repeating-linear-gradient(0deg, transparent, transparent 99px, var(--color-black) 99px, var(--color-black) 100px),
        repeating-linear-gradient(90deg, transparent, transparent 99px, var(--color-black) 99px, var(--color-black) 100px);
    z-index: 0;
    opacity: 0.15;
    pointer-events: none;
}

.cta::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    background-image:
        linear-gradient(135deg, var(--color-red) 0px, var(--color-red) 100px, transparent 100px, transparent 200px),
        linear-gradient(45deg, var(--color-blue) 0px, var(--color-blue) 120px, transparent 120px, transparent 240px),
        linear-gradient(-45deg, var(--color-yellow) 0px, var(--color-yellow) 80px, transparent 80px, transparent 160px);
    background-size: 400px 400px, 360px 360px, 320px 320px;
    background-position: top left, top right, bottom left;
    opacity: 0.08;
    pointer-events: none;
}

.cta-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 10;
}

.cta-title {
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
}

.cta-description {
    font-size: 1.25rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
    color: var(--color-black);
}

@media (min-width: 768px) {
    .cta-description {
        font-size: 1.5rem;
    }
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    align-items: center;
    position: relative;
    z-index: 15;
}

@media (min-width: 768px) {
    .cta-buttons {
        flex-direction: row;
        justify-content: center;
        gap: var(--spacing-md);
    }
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-decoration: none;
    border: 3px solid var(--color-black);
    transition: all var(--transition-fast);
    cursor: pointer;
    position: relative;
    overflow: visible;
    width: 100%;
    max-width: 300px;
    text-align: center;
    z-index: 20;
    opacity: 1 !important;
}

@media (min-width: 768px) {
    .btn {
        width: auto;
    }
}

.btn-primary {
    background-color: var(--color-red);
    color: var(--color-white);
    border-color: var(--color-red);
}

.btn-primary:hover {
    background-color: var(--color-black);
    border-color: var(--color-black);
    transform: translateY(-4px);
    box-shadow: 8px 8px 0 var(--color-yellow);
}

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

.btn-secondary:hover {
    background-color: var(--color-blue);
    color: var(--color-white);
    border-color: var(--color-blue);
    transform: translateY(-4px);
    box-shadow: 8px 8px 0 var(--color-red);
}

.cta-benefits {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

@media (min-width: 768px) {
    .cta-benefits {
        grid-template-columns: repeat(3, 1fr);
    }
}

.benefit {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.benefit-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--color-black);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    border: 3px solid var(--color-black);
}

.benefit p {
    font-size: 1rem;
    opacity: 0.8;
    color: var(--color-black);
}

/* ===================================
   Final Message Section
   =================================== */
.final-message {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-black);
    color: var(--color-white);
    text-align: center;
    overflow: visible;
}

.final-content {
    max-width: 800px;
    margin: 0 auto;
    overflow: visible;
}

.final-text {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.03em;
    font-family: var(--font-mono);
}

.btn-final {
    font-size: 1.25rem;
    padding: var(--spacing-sm) var(--spacing-sm);
    background-color: var(--color-red);
    color: var(--color-white);
    border: none;
    font-family: var(--font-mono);
    letter-spacing: -0.03em;
    display: inline-block !important;
    width: fit-content !important;
    white-space: nowrap;
    overflow: visible;
    line-height: 1.4;
}

.btn-final:hover {
    background-color: var(--color-white);
    color: var(--color-red);
}

@media (min-width: 768px) {
    .final-text {
        font-size: 2rem;
    }
    
    .btn-final {
        font-size: 1.5rem;
    }
}

/* ===================================
   Footer
   =================================== */
.footer {
    min-height: 40vh;
    padding: var(--spacing-lg) 0 var(--spacing-md);
    background-color: var(--color-black);
    color: var(--color-white);
    position: relative;
    display: flex;
    align-items: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
    text-align: center;
}

@media (min-width: 768px) {
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.footer-info p {
    font-size: 0.875rem;
    opacity: 0.7;
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
}

.footer-links a {
    color: var(--color-white);
    text-decoration: none;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.footer-links a:hover {
    opacity: 1;
}

.footer-accent {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-red) 0%, var(--color-yellow) 50%, var(--color-blue) 100%);
}

/* ===================================
   Accessibility - Reduced Motion
   =================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .scroll-line {
        animation: none;
    }
    
    .geo-rect,
    .geo-diagonal,
    .accent-block {
        display: none;
    }
}

/* ===================================
   Utility Classes
   =================================== */
.reveal-text {
    opacity: 0;
    transform: translateY(30px);
}

.split-text {
    overflow: hidden;
}

/* Focus Styles for Accessibility */
a:focus,
button:focus,
.project-card:focus {
    outline: 3px solid var(--color-yellow);
    outline-offset: 2px;
}

/* ===================================
   Section Navigation Indicator
   =================================== */
.section-nav {
    position: fixed;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
}

@media (max-width: 768px) {
    .section-nav {
        right: var(--spacing-sm);
        gap: var(--spacing-xs);
    }
}

.section-nav-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid var(--color-black);
    background-color: transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    padding: 0;
    position: relative;
}

.section-nav-dot::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--color-black);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.section-nav-dot.active {
    border-color: var(--color-red);
    background-color: var(--color-red);
    transform: scale(1.3);
}

.section-nav-dot:hover {
    border-color: var(--color-blue);
    transform: scale(1.2);
}

.section-nav-dot:hover::before {
    opacity: 1;
    background-color: var(--color-blue);
}

.section-nav-dot:focus {
    outline: 2px solid var(--color-yellow);
    outline-offset: 3px;
}

/* Color coding for specific sections */
.section-nav-dot:nth-child(1).active {
    background-color: var(--color-red);
    border-color: var(--color-red);
}

.section-nav-dot:nth-child(2).active {
    background-color: var(--color-blue);
    border-color: var(--color-blue);
}

.section-nav-dot:nth-child(3).active {
    background-color: var(--color-yellow);
    border-color: var(--color-yellow);
}

.section-nav-dot:nth-child(4).active {
    background-color: var(--color-black);
    border-color: var(--color-black);
}

.section-nav-dot:nth-child(5).active {
    background-color: var(--color-red);
    border-color: var(--color-red);
}

/* Loading Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Ethereum-driven shapes - dynamically generated from live blockchain data */
.eth-shape {
    position: absolute;
    border: none;
    will-change: transform, opacity;
    pointer-events: auto;
    cursor: pointer;
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                height 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                background-color 0.4s ease-out,
                transform 0.3s ease-out;
}

.eth-shape:hover {
    transform: scale(1.1);
}

/* Transaction annotations */
.tx-annotation {
    position: absolute;
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--color-white);
    border: 2px solid var(--color-black);
    font-family: var(--font-sans);
    font-size: 0.75rem;
    line-height: 1.3;
    z-index: 150;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transform: translateX(-50%);
    text-decoration: none;
    color: var(--color-black);
    display: block;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    pointer-events: auto;
}

.tx-annotation:hover {
    transform: translateX(-50%) translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    z-index: 160;
}

.tx-annotation.tx-red {
    border-color: var(--color-red);
}

.tx-annotation.tx-blue {
    border-color: var(--color-blue);
}

.tx-annotation.tx-yellow {
    border-color: var(--color-yellow);
}

.tx-hash {
    font-weight: 700;
    font-family: 'Courier New', monospace;
    font-size: 0.7rem;
    margin-bottom: 2px;
}

.tx-value {
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: 1px;
}

.tx-type {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1px;
}

.tx-fee {
    font-size: 0.65rem;
    opacity: 0.7;
}

.tx-line {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 140;
    overflow: visible;
}

.tx-path {
    stroke-linecap: round;
    stroke-linejoin: round;
}

@media (max-width: 768px) {
    .tx-annotation {
        font-size: 0.65rem;
        padding: 4px 8px;
    }
    
    .tx-hash {
        font-size: 0.6rem;
    }
    
    .tx-fee {
        font-size: 0.55rem;
    }
}

/* ===================================
   Modal & Gallery Overlays
   =================================== */
.modal,
.gallery-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
}

.modal.active,
.gallery-overlay.active {
    display: flex;
}

.modal-backdrop,
.gallery-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    cursor: pointer;
}

.modal-content,
.gallery-content {
    position: relative;
    z-index: 1001;
    width: 90%;
    max-width: 1200px;
    height: 90vh;
    background-color: var(--color-white);
    border: 4px solid var(--color-black);
    display: flex;
    flex-direction: column;
}

.modal-close,
.gallery-close {
    position: absolute;
    top: -40px;
    right: 0;
    background-color: var(--color-red);
    color: var(--color-white);
    border: none;
    width: 40px;
    height: 40px;
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-fast);
}

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

#modal-iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.gallery-title {
    font-size: 2rem;
    font-weight: 900;
    text-transform: uppercase;
    padding: var(--spacing-md);
    border-bottom: 4px solid var(--color-black);
    margin: 0;
}

.gallery-grid {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
    align-content: start;
}

.gallery-img {
    width: 100%;
    height: auto;
    border: 2px solid var(--color-black);
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.gallery-img:hover {
    transform: scale(1.05);
}

@media (max-width: 768px) {
    /* General mobile containment fixes */
    body {
        overflow-x: hidden;
        width: 100vw;
        max-width: 100%;
    }
    
    section {
        overflow-x: hidden;
        overflow-y: visible !important;
        width: 100%;
    }
    
    .container {
        overflow-x: hidden;
        overflow-y: visible !important;
        padding-left: var(--spacing-md) !important;
        padding-right: var(--spacing-md) !important;
        max-width: 100% !important;
        width: 100% !important;
    }
    
    /* ALL sections must be viewport height minimum and expand to fit content */
    .hero,
    .vision,
    .future,
    .timeline,
    .cta,
    .projects,
    .final-message {
        min-height: 100vh !important;
        height: auto !important;
        max-height: none !important;
        overflow: visible !important;
        overflow-y: visible !important;
        padding: var(--spacing-lg) 0 !important;
        display: block !important;
    }
    
    /* Hero needs extra space */
    .hero {
        padding-top: var(--spacing-xl) !important;
        padding-bottom: var(--spacing-xl) !important;
    }
    
    /* Projects grid MUST expand to fit all content */
    .projects-grid {
        width: 100%;
        display: flex !important;
        flex-direction: column;
        gap: var(--spacing-lg);
        overflow: visible !important;
        max-height: none !important;
        height: auto !important;
    }
    
    /* Future blocks stack and expand */
    .future-content {
        display: flex !important;
        flex-direction: column;
        gap: var(--spacing-md);
        overflow: visible !important;
        max-height: none !important;
        height: auto !important;
    }
    
    .future-block {
        width: 100%;
        margin-bottom: var(--spacing-md);
        overflow: visible !important;
    }
    
    /* ALL children containers MUST expand naturally - NO SCROLLING */
    .future-content,
    .timeline-content,
    .cta-content,
    .vision-content,
    .hero-content,
    .vision-grid,
    .vision-text,
    .projects-content,
    .timeline-line,
    .cta-form,
    .final-content {
        height: auto !important;
        max-height: none !important;
        overflow: visible !important;
        overflow-y: visible !important;
        min-height: 0 !important;
        display: block !important;
    }
    
    .container {
        height: auto !important;
        max-height: none !important;
        min-height: 0 !important;
        overflow: visible !important;
        overflow-y: visible !important;
    }
    
    /* Force all child divs to expand - NUCLEAR OPTION */
    section > *,
    .container > *,
    .future-content > *,
    .timeline-content > *,
    .cta-content > *,
    .vision-content > *,
    section div,
    .container div {
        overflow: visible !important;
        max-height: none !important;
    }
    
    /* Prevent any flex/grid containers from becoming scrollable */
    section[style*="display: flex"],
    section[style*="display: grid"],
    .container[style*="display: flex"],
    .container[style*="display: grid"] {
        overflow: visible !important;
        max-height: none !important;
    }
    
    /* Timeline should stack vertically and expand */
    .timeline-item {
        width: 100%;
        margin-bottom: var(--spacing-md);
    }
    
    /* Adjust text sizes for mobile readability */
    .hero-title {
        font-size: 2.5rem !important;
    }
    
    .hero-subtitle {
        font-size: 1.25rem !important;
    }
    
    .section-title {
        font-size: 2rem !important;
    }
    
    /* Ensure all major containers expand */
    .hero-content,
    .projects,
    .future,
    .vision,
    .timeline,
    .cta {
        width: 100% !important;
        max-width: 100vw !important;
    }
    
    /* Project cards stacking fix */
    .project-card {
        margin-bottom: var(--spacing-lg);
        isolation: isolate;
    }
    
    .project-info {
        width: 100%;
        box-sizing: border-box;
    }
    
    /* Modal/Gallery */
    .modal-content,
    .gallery-content {
        width: 95%;
        height: 85vh;
        overflow-y: auto;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
}