:root {
    --bg-dark: #1b1d21;
    --bg-darker: #15171a;
    --bg-panel: #24272c;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --accent-blue: #0047AB;
    --accent-blue-hover: #1a5fb4;
    --accent-orange: #d29922;
    /* Warning/Safety/Industrial */
    --border-color: #363c45;

    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    --container-width: 1200px;
    --radius-sm: 4px;
    --radius-md: 6px;

    --header-bg: rgba(21, 23, 26, 0.95);
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.25;
}

h1 {
    font-size: 3rem;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 2.25rem;
    letter-spacing: -0.01em;
    margin-bottom: var(--spacing-sm);
}

h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
}

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

/* Utilities */
.grid {
    display: grid;
    gap: var(--spacing-md);
}

.layout-2-col {
    grid-template-columns: 1fr 1fr;
}

.layout-3-col {
    grid-template-columns: repeat(3, 1fr);
}

.layout-4-col {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 768px) {

    .layout-2-col,
    .layout-3-col,
    .layout-4-col {
        grid-template-columns: 1fr;
    }

    h1 {
        font-size: 2.5rem;
    }
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    border: 1px solid transparent;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--accent-blue);
    color: #fff;
    border: 1px solid var(--accent-blue);
}

.btn-primary:hover {
    background-color: var(--accent-blue-hover);
    border-color: var(--accent-blue-hover);
}

.btn-secondary {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    border-color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.05);
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Header */
.main-header {
    position: fixed;
    top: 1.5rem;
    left: 0;
    right: 0;
    margin: 0 auto;
    width: 95%;
    /* Slightly wider on mobile */
    max-width: 1100px;
    /* More compact on desktop */
    background-color: rgba(30, 34, 40, 0.6);
    /* Glassy/Translucent */
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    border-radius: 100px;
    /* Rounded Rectangle */
    z-index: 1000;
    padding: 0.5rem 0;
    transition: transform 0.3s ease-in-out, opacity 0.3s ease-in-out;
}

.main-header.nav-hidden {
    transform: translateY(-200%);
    opacity: 0;
}

.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 3rem;
    /* Increased padding */
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 40px;
    width: auto;
}

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

.main-header nav a:not(.btn) {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.main-header nav a:not(.btn):hover {
    color: var(--text-primary);
}

/* Hero Section */
.hero-section {
    position: relative;
    min-height: 98vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 120px;
    /* Clearance for floating nav */
    padding-bottom: 0;
    /* Remove bottom padding for true centering */
    background-color: var(--bg-darker);
    /* background: removed static image */
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
    /* Ensure canvas doesn't overflow */
}

#hero-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    /* Behind content */
    opacity: 0.6;
    /* Subtle effect */
    pointer-events: none;
}

.hero-content {
    position: relative;
    /* Ensure text is above canvas */
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.backing-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.05);
    color: #cbd5e1;
    /* Light Grey */
    border: 1px solid rgba(203, 213, 225, 0.3);
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-content h1,
.hero-content p {
    color: var(--text-primary);
}

.hero-sub {
    font-size: 1.5rem;
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
}

.trust-signals {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    font-size: 0.9rem;
    color: var(--text-secondary);
    justify-content: center;
}

.signal .icon {
    color: #888;
    /* Grey ticks */
    margin-right: 0.25rem;
    font-weight: bold;
}

.cta-group {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: 4rem;
}

/* Sections */
.section {
    padding: var(--spacing-xl) 0;
    border-bottom: 1px solid var(--border-color);
}

.section-header {
    margin-bottom: var(--spacing-lg);
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

/* Problem Section */
/* Problem Section */
.problem-section {
    background-color: var(--bg-dark);
}

.visual-block {
    position: relative;
    /* Ensure height is dictated by the text column content */
}

.visual-block img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-md);
    opacity: 0.6;
    mix-blend-mode: luminosity;
}



.risk-list {
    list-style: none;
    margin: var(--spacing-md) 0;
}

.risk-list li {
    margin-bottom: var(--spacing-xs);
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
}

.risk-list li::before {
    content: "!";
    position: absolute;
    left: 0;
    color: var(--accent-orange);
    font-weight: bold;
}

.risk-list strong {
    color: var(--text-primary);
}

.impact-statement {
    font-size: 1.2rem;
    border-left: 3px solid var(--accent-orange);
    padding-left: var(--spacing-sm);
    color: var(--text-primary);
    font-weight: 500;
    margin-top: var(--spacing-md);
}

/* Feature Cards */
.feature-card {
    background: var(--bg-panel);
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: transform 0.2s ease;
    text-align: left;
}

.icon-wrapper {
    margin-bottom: var(--spacing-sm);
    color: var(--accent-blue);
}

.feature-card:hover {
    transform: translateY(-2px);
    border-color: var(--accent-blue);
}

/* Product Section */
.product-block {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.product-block.reverse {
    flex-direction: row-reverse;
}

.product-info {
    flex: 1;
}

.product-info .subtitle {
    color: #3b82f6;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    margin-top: -0.5rem;
}

.product-image {
    flex: 1;
    height: 300px;
    /* Placeholder height */
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.specs-list {
    list-style: disc inside;
    margin-top: var(--spacing-sm);
}

.specs-list li {
    margin-bottom: 0.25rem;
    color: var(--text-secondary);
}

/* Defensibility */
/* Defensibility */
.defense-point {
    padding-right: var(--spacing-md);
    text-align: center;
}


.defense-point .icon-wrapper,
.model-card .icon-wrapper {
    width: 64px;
    height: 64px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    color: #3b82f6;
    /* Light Blue */
    border: 1px solid rgba(59, 130, 246, 0.2);
    transition: transform 0.3s ease;
}

.defense-point .icon-wrapper svg,
.model-card .icon-wrapper svg {
    width: 36px;
    height: 36px;
    stroke-width: 2.5px;
}

.defense-point:hover .icon-wrapper,
.model-card:hover .icon-wrapper {
    transform: scale(1.1);
    background: rgba(59, 130, 246, 0.15);
    border-color: #3b82f6;
}

.defense-point h4 {
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: var(--spacing-xs);
    display: inline-block;
    padding-left: 1rem;
    padding-right: 1rem;
}

/* Market & Traction */
.market-quote {
    font-size: 1.1rem;
    font-style: italic;
    color: var(--text-secondary);
    margin-top: var(--spacing-sm);
}

.logo-cloud {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-top: var(--spacing-md);
    justify-content: center;
}

.industry-tag {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: 100px;
    font-size: 0.9rem;
    color: var(--text-primary);
}

/* Secondary Button */
.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.8);
    color: var(--text-primary);
    padding: 0.5rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 500;
    backdrop-filter: blur(4px);
    transition: all 0.2s ease;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
    transform: translateY(-1px);
}

/* Timeline */
.timeline {
    border-left: 2px solid var(--border-color);
    padding-left: var(--spacing-md);
    margin: 0 auto;
    max-width: 380px;
}

.milestone {
    position: relative;
    margin-bottom: var(--spacing-md);
}

.milestone .marker {
    position: absolute;
    left: calc(-1 * var(--spacing-md) - 5px);
    /* Adjust based on padding and border */
    top: 5px;
    width: 8px;
    height: 8px;
    background: var(--bg-dark);
    border: 2px solid var(--text-secondary);
    border-radius: 50%;
}

.milestone.completed .marker {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
}

.milestone.current .marker {
    background: var(--accent-orange);
    border-color: var(--accent-orange);
    box-shadow: 0 0 0 4px rgba(210, 153, 34, 0.2);
}

.milestone h4 {
    margin-bottom: 0.1rem;
}

/* Business Model & Advisors */
.model-card,
.advisor-card {
    background: var(--bg-panel);
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    text-align: center;
}

.advisor-card p {
    font-size: 0.85rem;
    line-height: 1.4;
    margin-bottom: 0;
}

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

.avatar-placeholder {
    width: 80px;
    height: 80px;
    background: var(--border-color);
    border-radius: 50%;
    margin: 0 auto var(--spacing-sm);
}

.advisor-img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 50%;
    margin-bottom: var(--spacing-sm);
    border: 2px solid var(--accent-blue);
}

@media (max-width: 768px) {
    .advisor-grid {
        grid-template-columns: 1fr;
    }
}

/* FAQ Section */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-panel);
    overflow: hidden;
    transition: border-color 0.3s ease;
}

.faq-item:hover {
    border-color: var(--accent-blue);
}

.faq-question {
    width: 100%;
    padding: 1.25rem;
    background: transparent;
    border: none;
    color: var(--text-primary);
    text-align: left;
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question .icon {
    font-size: 1.75rem;
    font-weight: 500;
    transition: transform 0.3s ease;
    color: #3b82f6;
    /* Light Blue */
}

.faq-item.active .faq-question .icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding: 0 1.25rem;
}

.faq-item.active .faq-answer {
    padding-bottom: 1.25rem;
}

.faq-answer p {
    color: var(--text-secondary);
    margin-bottom: 0;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Footer Redesign - Daylight Style */
.main-footer {
    background-color: #0b0c10;
    /* Very dark footer bg */
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-xl) 0;
    margin-top: auto;
    text-align: left;
    /* Reset center alignment */
    position: relative;
    /* For canvas positioning */
    overflow: hidden;
    /* Contain canvas */
}

#footer-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    opacity: 0.4;
    /* Slightly subtler than hero */
    pointer-events: none;
}

.footer-grid {
    position: relative;
    z-index: 1;
    /* Above canvas */
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 2fr;
    /* Brand | Nav | Social | Form */
    gap: var(--spacing-lg);
    align-items: start;
}

.footer-col h5 {
    font-size: 0.75rem;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
    opacity: 0.7;
    text-transform: uppercase;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1rem;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--accent-blue);
}

.footer-tagline {
    font-size: 1rem;
    line-height: 1.5;
    color: var(--text-primary);
    max-width: 200px;
}

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icons a {
    color: var(--text-primary);
    transition: color 0.3s ease;
}

.social-icons a:hover {
    color: var(--accent-blue);
}

/* Update Form - Pill Shape */
.email-signup {
    position: relative;
    display: flex;
    align-items: center;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 999px;
    padding: 4px;
    transition: border-color 0.3s ease;
    max-width: 400px;
    /* Limit width */
}

.email-signup:focus-within {
    border-color: var(--accent-blue);
}

.email-signup input {
    background: transparent;
    border: none;
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    flex: 1;
    outline: none;
    font-size: 0.9rem;
}

.email-signup button {
    background-color: #fff;
    color: #000;
    border: none;
    border-radius: 999px;
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
    transition: transform 0.2s ease, background-color 0.2s ease;
}

.email-signup button:hover {
    transform: scale(1.05);
    background-color: var(--accent-blue);
    color: #fff;
}

/* Copyright & Legal */
.copyright-desktop {
    margin-top: 3rem;
    color: var(--text-secondary);
    font-size: 0.75rem;
    opacity: 0.6;
}

.legal-links {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.25rem;
}

.legal-links a {
    color: inherit;
    text-decoration: none;
}

.separator {
    margin: 0 0.25rem;
}

.mobile-copyright {
    display: none;
    /* Hidden on desktop */
}

/* Responsive Footer */
@media (max-width: 900px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        /* 2 col grid */
        gap: var(--spacing-xl);
    }

    .brand-col,
    .update-col {
        grid-column: span 2;
        /* Full width */
    }

    .brand-col {
        order: -1;
        /* Logo first */
        margin-bottom: var(--spacing-lg);
    }

    .copyright-desktop {
        display: none;
        /* Hide desktop copyright */
    }

    .mobile-copyright {
        display: block;
        text-align: center;
        margin-top: var(--spacing-xl);
        color: var(--text-secondary);
        font-size: 0.8rem;
        opacity: 0.6;
    }

    .mobile-copyright .legal-links {
        justify-content: center;
    }
}

@media (max-width: 768px) {

    .product-block,
    .product-block.reverse {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .hero-section {
        padding-top: 120px;
    }

    .trust-signals {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
}