/* ========================================
   Nexus Field OS - Premium Dark Institutional Stylesheet
   ======================================== */

/* CSS Custom Properties */
:root {
    --color-bg-primary: #0a0e27;
    --color-bg-secondary: #11131f;
    --color-bg-tertiary: #0d1117;
    --color-bg-card: rgba(255, 255, 255, 0.02);
    --color-bg-card-hover: rgba(255, 255, 255, 0.04);
    --color-accent: #00d4ff;
    --color-accent-dim: rgba(0, 212, 255, 0.1);
    --color-accent-mid: rgba(0, 212, 255, 0.3);
    --color-accent-bright: rgba(0, 212, 255, 0.6);
    --color-silver: #c0c7d4;
    --color-text-primary: #ffffff;
    --color-text-secondary: rgba(255, 255, 255, 0.7);
    --color-text-tertiary: rgba(255, 255, 255, 0.5);
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-light: rgba(255, 255, 255, 0.15);
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --spacing-2xl: 8rem;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Reset & Base */
*, *::before, *::after {
    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-body);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    overflow-x: hidden;
}

img, svg {
    display: block;
    max-width: 100%;
}

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

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

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

/* ========================================
   Navigation
   ======================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 39, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition-base);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.125rem;
    letter-spacing: -0.02em;
}

.nav-logo-mark {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--color-accent-dim);
    border: 1px solid var(--color-accent-mid);
    border-radius: var(--radius-sm);
    color: var(--color-accent);
    font-weight: 700;
    font-size: 0.875rem;
}

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

.nav-links {
    display: none;
    align-items: center;
    gap: var(--spacing-lg);
}

@media (min-width: 1024px) {
    .nav-links {
        display: flex;
    }
}

.nav-link {
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    letter-spacing: 0.01em;
    position: relative;
    padding: 0.25rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: var(--transition-base);
}

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

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

.nav-cta {
    display: none;
    padding: 0.625rem 1.25rem;
    background: var(--color-accent-dim);
    border: 1px solid var(--color-accent-mid);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-accent);
    transition: var(--transition-base);
}

@media (min-width: 1024px) {
    .nav-cta {
        display: inline-flex;
    }
}

.nav-cta:hover {
    background: var(--color-accent-mid);
    color: var(--color-text-primary);
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

@media (min-width: 1024px) {
    .nav-toggle {
        display: none;
    }
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 1.5px;
    background: var(--color-text-primary);
    transition: var(--transition-base);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-bg-primary);
}

.btn-primary:hover {
    background: rgba(0, 212, 255, 0.85);
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.2);
}

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

.btn-secondary:hover {
    border-color: var(--color-accent-mid);
    color: var(--color-accent);
}

.btn-large {
    padding: 1rem 2.25rem;
    font-size: 1rem;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(72px + var(--spacing-xl)) 0 var(--spacing-xl);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 80px 80px;
    opacity: 0.5;
}

.hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.04) 0%, transparent 70%);
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

@media (min-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr 1fr;
    }
}

.hero-eyebrow {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
    opacity: 0.8;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(3rem, 7vw, 5.5rem);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.03em;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-family: var(--font-heading);
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    font-weight: 400;
    line-height: 1.4;
    color: var(--color-silver);
    margin-bottom: var(--spacing-md);
    max-width: 500px;
}

.hero-copy {
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    max-width: 540px;
    margin-bottom: var(--spacing-lg);
}

.hero-cta-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-placeholder {
    position: relative;
    width: 100%;
    max-width: 500px;
    aspect-ratio: 4/3;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-image-label {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-md);
    z-index: 1;
}

.hero-image-dots {
    position: absolute;
    inset: 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    padding: 2rem;
    opacity: 0.3;
}

.hero-image-dots span {
    width: 4px;
    height: 4px;
    background: var(--color-accent);
    border-radius: 50%;
    justify-self: center;
    align-self: center;
}

.hero-image-lines {
    position: absolute;
    inset: 0;
    opacity: 0.6;
}

.hero-image-lines svg {
    width: 100%;
    height: 100%;
}

.hero-scroll {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.hero-scroll-line {
    width: 1px;
    height: 48px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(1); }
    50% { opacity: 1; transform: scaleY(1.2); }
}

/* ========================================
   Section Base Styles
   ======================================== */
.section {
    padding: var(--spacing-2xl) 0;
    position: relative;
}

.section-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border), transparent);
    max-width: 800px;
    margin: 0 auto;
}

.section-header {
    margin-bottom: var(--spacing-xl);
    max-width: 800px;
}

.section-eyebrow {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    opacity: 0.8;
    display: block;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3.25rem);
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
}

/* ========================================
   Thesis Section
   ======================================== */
.thesis-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

@media (min-width: 1024px) {
    .thesis-content {
        grid-template-columns: 1fr 1fr;
    }
}

.thesis-copy p {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.thesis-copy p:last-child {
    margin-bottom: 0;
}

.thesis-visual {
    display: flex;
    justify-content: center;
}

.thesis-image-placeholder {
    position: relative;
    width: 100%;
    max-width: 480px;
    aspect-ratio: 3/2;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.thesis-image-label {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-md);
    z-index: 1;
}

.thesis-factory {
    width: 100%;
    padding: 0 1rem;
}

.thesis-factory svg {
    width: 100%;
    height: auto;
}

/* ========================================
   Problem Section
   ======================================== */
.problem-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

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

.problem-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: var(--transition-base);
}

.problem-card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-light);
    transform: translateY(-2px);
}

.problem-card-icon {
    width: 48px;
    height: 48px;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
    opacity: 0.8;
}

.problem-card-icon svg {
    width: 100%;
    height: 100%;
}

.problem-card-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.01em;
}

.problem-card-copy {
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
}

/* ========================================
   Solution Section
   ======================================== */
.solution-content {
    max-width: 800px;
    margin-bottom: var(--spacing-xl);
}

.solution-lead {
    font-size: 1.25rem;
    line-height: 1.6;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.solution-copy {
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
}

.solution-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

@media (min-width: 768px) {
    .solution-features {
        grid-template-columns: repeat(4, 1fr);
    }
}

.feature-block {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
}

.feature-block:hover {
    border-color: var(--color-accent-mid);
    background: var(--color-bg-card-hover);
}

.feature-block-marker {
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
    flex-shrink: 0;
    opacity: 0.6;
}

.feature-block-title {
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-primary);
    letter-spacing: -0.01em;
}

.solution-architecture {
    max-width: 600px;
    margin: 0 auto;
}

.architecture-layer {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: center;
    transition: var(--transition-base);
}

.architecture-layer:hover {
    border-color: var(--color-border-light);
}

.architecture-layer-core {
    border-color: var(--color-accent-mid);
    background: var(--color-accent-dim);
}

.architecture-label {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
}

.architecture-items {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
    line-height: 1.5;
}

.architecture-arrow {
    display: flex;
    justify-content: center;
    padding: var(--spacing-xs) 0;
    color: var(--color-accent);
    opacity: 0.5;
}

.architecture-arrow svg {
    width: 20px;
    height: 32px;
}

/* ========================================
   Cognitive Nodes Section
   ======================================== */
.nodes-intro {
    max-width: 800px;
    margin-bottom: var(--spacing-xl);
}

.nodes-intro p {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.nodes-intro p:last-child {
    margin-bottom: 0;
}

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

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

@media (min-width: 1024px) {
    .nodes-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

.node-category {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: var(--transition-base);
}

.node-category:hover {
    border-color: var(--color-border-light);
    background: var(--color-bg-card-hover);
}

.node-category-title {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

.node-category-list {
    list-style: none;
}

.node-category-list li {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    padding: 0.375rem 0;
    position: relative;
    padding-left: 1rem;
}

.node-category-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 4px;
    background: var(--color-accent);
    border-radius: 50%;
    opacity: 0.5;
}

.nodes-visual {
    display: flex;
    justify-content: center;
}

.nodes-image-placeholder {
    position: relative;
    width: 100%;
    max-width: 600px;
    aspect-ratio: 16/10;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.nodes-image-label {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-md);
    z-index: 1;
}

.nodes-network {
    width: 100%;
    padding: 0 1rem;
}

.nodes-network svg {
    width: 100%;
    height: auto;
}

/* ========================================
   Node Agent Section
   ======================================== */
.agent-content {
    max-width: 800px;
    margin-bottom: var(--spacing-xl);
}

.agent-lead {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
}

.agent-capabilities {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
}

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

.capability-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
}

.capability-item:hover {
    border-color: var(--color-border-light);
    background: var(--color-bg-card-hover);
}

.capability-marker {
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 0.5rem;
    opacity: 0.6;
}

.capability-text {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* ========================================
   Experience Graph Section
   ======================================== */
.graph-content {
    max-width: 800px;
    margin-bottom: var(--spacing-xl);
}

.graph-lead {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
}

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

.graph-section-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    opacity: 0.8;
}

.graph-items {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.graph-item {
    padding: 0.5rem 1rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 100px;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    transition: var(--transition-fast);
}

.graph-item:hover {
    border-color: var(--color-accent-mid);
    color: var(--color-accent);
}

.graph-value {
    max-width: 800px;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--color-bg-card);
    border-left: 2px solid var(--color-accent);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.graph-value p {
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    font-style: italic;
}

.graph-visual {
    display: flex;
    justify-content: center;
}

.graph-image-placeholder {
    position: relative;
    width: 100%;
    max-width: 600px;
    aspect-ratio: 2/1;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.graph-image-label {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-md);
    z-index: 1;
}

.graph-abstract {
    width: 100%;
    padding: 0 1rem;
}

.graph-abstract svg {
    width: 100%;
    height: auto;
}

/* ========================================
   Robot-as-a-Service Section
   ======================================== */
.raas-content {
    max-width: 800px;
    margin-bottom: var(--spacing-xl);
}

.raas-content p {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.raas-content p:last-child {
    margin-bottom: 0;
}

.raas-formula {
    display: flex;
    justify-content: center;
}

.formula-container {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl) var(--spacing-lg);
    max-width: 800px;
    width: 100%;
    text-align: center;
}

.formula-line {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.formula-item {
    font-family: var(--font-heading);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text-primary);
    padding: 0.5rem 1rem;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

.formula-plus {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--color-accent);
    opacity: 0.6;
    font-weight: 300;
}

.formula-equals {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-accent);
    opacity: 0.6;
    font-weight: 300;
    margin-bottom: var(--spacing-md);
}

.formula-result {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: -0.01em;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 1px solid var(--color-accent-mid);
    border-radius: var(--radius-sm);
    background: var(--color-accent-dim);
    display: inline-block;
}

/* ========================================
   Automation MRI Section
   ======================================== */
.mri-content {
    max-width: 800px;
    margin-bottom: var(--spacing-xl);
}

.mri-lead {
    font-size: 1.25rem;
    line-height: 1.6;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.mri-content p:last-of-type {
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
}

.mri-deliverables {
    margin-bottom: var(--spacing-xl);
}

.mri-deliverables-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    opacity: 0.8;
}

.mri-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
}

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

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

.mri-item:hover {
    border-color: var(--color-border-light);
    background: var(--color-bg-card-hover);
}

.mri-item-marker {
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
    flex-shrink: 0;
    opacity: 0.6;
}

.mri-item-text {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
}

.mri-commercial {
    max-width: 800px;
    padding: var(--spacing-lg);
    background: var(--color-bg-card);
    border-left: 2px solid var(--color-accent);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.mri-commercial p {
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    font-style: italic;
}

/* ========================================
   Data Trust Section
   ======================================== */
.trust-content {
    max-width: 800px;
    margin-bottom: var(--spacing-xl);
}

.trust-content p {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
}

.trust-principles {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

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

.principle-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
}

.principle-item:hover {
    border-color: var(--color-border-light);
    background: var(--color-bg-card-hover);
}

.principle-marker {
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 0.5rem;
    opacity: 0.6;
}

.principle-text {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

.trust-visual {
    display: flex;
    justify-content: center;
}

.trust-image-placeholder {
    position: relative;
    width: 100%;
    max-width: 400px;
    aspect-ratio: 1/1;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.trust-image-label {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-md);
    z-index: 1;
}

.trust-vault {
    width: 100%;
    padding: 0 2rem;
}

.trust-vault svg {
    width: 100%;
    height: auto;
}

/* ========================================
   Business Model Section
   ======================================== */
.business-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

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

@media (min-width: 1024px) {
    .business-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.business-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.business-card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-light);
    transform: translateY(-2px);
}

.business-card-num {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-accent);
    opacity: 0.6;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.business-card-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.01em;
}

.business-card-copy {
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
}

/* ========================================
   Strategic Moat Section
   ======================================== */
.moat-content {
    max-width: 800px;
    margin-bottom: var(--spacing-xl);
}

.moat-content p {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
}

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

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

@media (min-width: 1024px) {
    .moat-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.moat-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: var(--transition-base);
}

.moat-card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-light);
    transform: translateY(-2px);
}

.moat-card-title {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.01em;
}

.moat-card-copy {
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
}

/* ========================================
   Platform Architecture Section
   ======================================== */
.architecture-stack {
    max-width: 700px;
    margin: 0 auto;
}

.arch-layer {
    display: flex;
    align-items: stretch;
    gap: var(--spacing-md);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: var(--transition-base);
}

.arch-layer:hover {
    border-color: var(--color-border-light);
    background: var(--color-bg-card-hover);
}

.arch-layer-core {
    border-color: var(--color-accent-mid);
    background: var(--color-accent-dim);
}

.arch-layer-num {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-accent);
    opacity: 0.3;
    line-height: 1;
    flex-shrink: 0;
    min-width: 48px;
    display: flex;
    align-items: flex-start;
}

.arch-layer-content {
    flex: 1;
}

.arch-layer-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.arch-layer-items {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

.arch-connector {
    display: flex;
    justify-content: center;
    padding: var(--spacing-xs) 0;
    color: var(--color-accent);
    opacity: 0.4;
}

.arch-connector svg {
    width: 20px;
    height: 32px;
}

/* ========================================
   MVP Roadmap Section
   ======================================== */
.roadmap-timeline {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.roadmap-item {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition-base);
}

@media (min-width: 768px) {
    .roadmap-item {
        grid-template-columns: 140px 1fr;
        align-items: center;
    }
}

.roadmap-item:first-child {
    border-top: 1px solid var(--color-border);
}

.roadmap-item:hover {
    background: var(--color-bg-card);
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
    margin: 0 calc(-1 * var(--spacing-md));
    border-radius: var(--radius-sm);
}

@media (min-width: 768px) {
    .roadmap-item:hover {
        margin: 0;
    }
}

.roadmap-month {
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-accent);
    opacity: 0.8;
    letter-spacing: 0.02em;
}

.roadmap-title {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-text-primary);
    line-height: 1.4;
    letter-spacing: -0.01em;
}

/* ========================================
   Ideal Customers Section
   ======================================== */
.customers-intro {
    max-width: 800px;
    margin-bottom: var(--spacing-xl);
}

.customers-intro p {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
}

.customers-sections {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

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

.customers-section-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    opacity: 0.8;
}

.customers-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.customers-tag {
    padding: 0.5rem 1rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 100px;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    transition: var(--transition-fast);
}

.customers-tag:hover {
    border-color: var(--color-border-light);
    color: var(--color-text-primary);
}

/* ========================================
   Final CTA Section
   ======================================== */
.section-cta {
    padding: var(--spacing-2xl) 0;
    text-align: center;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3.25rem);
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
}

.cta-copy {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

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

/* ========================================
   Footer
   ======================================== */
.footer {
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-secondary);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

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

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text-primary);
    letter-spacing: -0.01em;
}

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

.footer-links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
}

.footer-separator {
    color: var(--color-border-light);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.footer-bottom p {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
}

/* ========================================
   Scroll Animations
   ======================================== */
.section {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Hero is always visible */
.hero {
    opacity: 1;
    transform: none;
}

/* ========================================
   Responsive Adjustments
   ======================================== */
@media (max-width: 767px) {
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .hero {
        padding: calc(72px + var(--spacing-lg)) 0 var(--spacing-lg);
    }
    
    .hero-cta-group {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .cta-buttons .btn {
        width: 100%;
    }
    
    .formula-line {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .formula-plus {
        transform: rotate(90deg);
    }
    
    .arch-layer {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .arch-layer-num {
        font-size: 1.5rem;
    }
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
    .nav,
    .hero-scroll,
    .btn {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .section {
        opacity: 1;
        transform: none;
        page-break-inside: avoid;
    }
}

/* ========================================
   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;
    }
    
    .section {
        opacity: 1;
        transform: none;
    }
}

/* Focus styles */
/* Generated image styling */
.generated-visual {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
    display: block;
}

.hero-image-placeholder .generated-visual,
.thesis-image-placeholder .generated-visual,
.nodes-image-placeholder .generated-visual,
.graph-image-placeholder .generated-visual,
.trust-image-placeholder .generated-visual {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

@media (max-width: 768px) {
    .generated-visual {
        min-height: 250px;
    }
}

/* Print styles */
@media print {
    .generated-visual {
        filter: none;
    }
}