/* ============================================
   CSS Variables - Color System
   ============================================ */
:root {
    --bg-0: #0f1623;
    --bg-1: #121c2b;
    --surface-0: rgba(255, 255, 255, 0.06);
    --surface-1: rgba(255, 255, 255, 0.09);
    --border: rgba(255, 255, 255, 0.10);
    --text-0: #e7eaf2;
    --text-1: rgba(231, 234, 242, 0.78);
    --muted: rgba(231, 234, 242, 0.60);
    --brand-0: #6f7fb7;
    --brand-1: #8f9fe0;
    --accent: #1b9145;
    --accent-2: #2ecc71;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

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

html {
    scroll-behavior: smooth;
}

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

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-0);
    background: var(--bg-0);
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(111, 127, 183, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(27, 145, 69, 0.03) 0%, transparent 50%),
        linear-gradient(180deg, var(--bg-0) 0%, var(--bg-1) 100%);
    background-attachment: fixed;
    overflow-x: hidden;
}

/* ============================================
   Skip Link
   ============================================ */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    z-index: 1000;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--accent);
    color: white;
    text-decoration: none;
    border-radius: 0 0 4px 0;
    transition: top var(--transition-base);
}

.skip-link:focus {
    top: 0;
}

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

/* ============================================
   Header & Navigation
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(15, 22, 35, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: all var(--transition-base);
}

.header.scrolled {
    background: rgba(15, 22, 35, 0.95);
    border-bottom-color: rgba(255, 255, 255, 0.15);
}

.header.collapsed {
    background: rgba(15, 22, 35, 0.98);
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

.nav {
    padding: 0.5rem 0;
    transition: padding var(--transition-base);
}

.header.collapsed .nav {
    padding: var(--spacing-sm) 0;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    transition: all var(--transition-base);
    position: relative;
    z-index: 100;
}

.header.collapsed .nav-container {
    justify-content: center;
    position: relative;
    padding: 0 var(--spacing-md);
    max-width: 100%;
}

/* Ensure hamburger is always visible and positioned on the right when header is collapsed */
/* Only show hamburger on mobile (max-width: 900px) */
@media (max-width: 900px) {
    .header.collapsed .nav-container .mobile-menu-toggle {
        display: flex !important;
        position: absolute !important;
        right: var(--spacing-md) !important;
        top: 50% !important;
        transform: translateY(-50%) !important;
        z-index: 200 !important;
        margin: 0 !important;
    }
}

/* Hide hamburger on desktop when header is collapsed */
@media (min-width: 901px) {
    .header.collapsed .nav-container .mobile-menu-toggle {
        display: none !important;
        opacity: 0 !important;
        visibility: hidden !important;
        pointer-events: none !important;
    }
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: opacity var(--transition-fast), margin var(--transition-base);
    margin-right: var(--spacing-md);
}

.header.collapsed .logo-link {
    margin-right: 0;
    margin-left: 0;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.logo-emphasis {
    position: relative;
    padding: 12px 20px;
    background: var(--surface-0);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: all var(--transition-base);
    overflow: hidden;
}

.logo-emphasis::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--brand-0) 0%, var(--brand-1) 50%, var(--accent) 100%);
    opacity: 0.8;
    transition: opacity var(--transition-base);
}

.logo-emphasis::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(111, 127, 183, 0.08) 0%, transparent 70%);
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.logo-link:hover .logo-emphasis {
    border-color: var(--brand-0);
    background: var(--surface-1);
    box-shadow: 0 4px 16px rgba(111, 127, 183, 0.15);
    transform: translateY(-2px);
}

.logo-link:hover .logo-emphasis::before {
    opacity: 1;
}

.logo-link:hover .logo-emphasis::after {
    opacity: 1;
}

.header.collapsed .logo-emphasis {
    padding: 0;
    background: transparent !important;
    border: none !important;
    border-radius: 0;
    overflow: hidden !important;
    box-shadow: none !important;
}

.header.collapsed .logo-emphasis::before {
    display: none !important;
    opacity: 0 !important;
    visibility: hidden !important;
    content: '' !important;
    width: 0 !important;
    height: 0 !important;
    background: transparent !important;
}

.header.collapsed .logo-emphasis::after {
    content: '' !important;
    display: none !important;
    opacity: 0 !important;
    visibility: hidden !important;
    width: 0 !important;
    height: 0 !important;
    max-width: 0 !important;
    max-height: 0 !important;
    background: transparent !important;
    background-image: none !important;
    background-size: 0 !important;
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    pointer-events: none !important;
    z-index: -9999 !important;
    transition: none !important;
    transform: scale(0) !important;
}

.logo-link:hover {
    opacity: 0.85;
}

.logo-link:focus {
    outline: 2px solid var(--accent);
    outline-offset: 4px;
    border-radius: 8px;
}

.nav-logo {
    height: 40px;
    width: auto;
    max-width: 150px;
    display: block;
    flex-shrink: 0;
    object-fit: contain;
    transition: height var(--transition-base), max-width var(--transition-base);
}

.header.collapsed .nav-logo {
    height: 28px;
    max-width: 100px;
    margin: 0;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 0.75rem;
    align-items: center;
    flex: 1;
    justify-content: center;
    margin: 0;
    transition: opacity var(--transition-base), visibility var(--transition-base), max-height var(--transition-base), gap var(--transition-base);
    opacity: 1;
    visibility: visible;
    max-height: 100px;
    flex-wrap: nowrap;
    min-width: 0;
}

.header.collapsed .nav-links {
    opacity: 0;
    visibility: hidden;
    max-height: 0;
    margin: 0;
    overflow: hidden;
}

.nav-link {
    color: var(--text-1);
    text-decoration: none;
    font-size: 17px;
    font-weight: 500;
    padding: var(--spacing-xs) 0.75rem;
    border-radius: 6px;
    transition: color var(--transition-fast), background var(--transition-fast);
    position: relative;
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--text-0);
    background: var(--surface-0);
}

.nav-link:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.nav-link.active {
    color: var(--brand-1);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: var(--spacing-sm);
    right: var(--spacing-sm);
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
}


/* ============================================
   Buttons
   ============================================ */
.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    border-radius: 8px;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    font-family: var(--font-primary);
}

.cta-button.primary {
    background: var(--accent);
    color: white;
}

.cta-button.primary:hover {
    background: var(--accent-2);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(27, 145, 69, 0.3);
}

.cta-button.primary:focus {
    outline: 2px solid var(--accent-2);
    outline-offset: 2px;
}

.cta-button.secondary {
    background: transparent;
    color: var(--text-0);
    border: 1px solid var(--border);
}

.cta-button.secondary:hover {
    background: var(--surface-0);
    border-color: var(--brand-0);
    color: var(--brand-1);
}

.cta-button.secondary:focus {
    outline: 2px solid var(--brand-0);
    outline-offset: 2px;
}

/* ============================================
   Sections
   ============================================ */
.section {
    padding: var(--spacing-lg) 0;
    position: relative;
    scroll-margin-top: 120px;
}

.section-headline {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 600;
    color: var(--text-0);
    margin-bottom: var(--spacing-md);
    opacity: 1;
    transform: translateY(0);
    position: relative;
    z-index: 1;
    white-space: nowrap;
    visibility: visible;
}

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

.section-intro {
    font-size: 1.125rem;
    color: var(--text-1);
    max-width: 800px;
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
    opacity: 1;
    transform: translateY(0);
    position: relative;
    z-index: 1;
    visibility: visible;
}

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

/* ============================================
   Hero Section
   ============================================ */
.hero-section {
    padding-top: calc(100px + var(--spacing-xl));
    padding-bottom: var(--spacing-xl);
    display: flex;
    align-items: center;
    min-height: 90vh;
    transition: padding-top var(--transition-base);
}

body.header-collapsed .hero-section {
    padding-top: calc(70px + var(--spacing-xl));
}

.hero-content {
    max-width: 800px;
    z-index: 1;
}

.hero-headline {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--brand-0) 0%, var(--brand-1) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease 0.2s forwards;
}

.hero-subheadline {
    font-size: 1.25rem;
    color: var(--text-1);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease 0.4s forwards;
}

.hero-ctas {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease 0.6s forwards;
}

.hero-visual {
    position: absolute;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    width: 50%;
    max-width: 600px;
    opacity: 0.3;
    pointer-events: none;
}

.lifecycle-ring {
    width: 100%;
    height: 100%;
}

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

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

/* ============================================
   Platform Section
   ============================================ */
.platform-section {
    position: relative;
}

.platform-section::after {
    content: '';
    position: absolute;
    top: 20%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(111, 127, 183, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    position: relative;
    z-index: 1;
}

.feature-card {
    background: var(--surface-0);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: var(--spacing-md);
    transition: border-color var(--transition-base), background-color var(--transition-base), opacity var(--transition-base);
    opacity: 0;
    transform: translateY(30px);
    position: relative;
    overflow: hidden;
    will-change: auto;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--brand-0), var(--accent));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.feature-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.feature-card:hover {
    border-color: var(--brand-0);
    background: var(--surface-1);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-sm);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(27, 145, 69, 0.1);
    border-radius: 12px;
    padding: 8px;
    transition: background-color var(--transition-base), color var(--transition-base);
    will-change: auto;
}

.feature-card:hover .feature-icon {
    background: rgba(27, 145, 69, 0.15);
    color: var(--accent-2);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-0);
    margin-bottom: var(--spacing-xs);
}

.feature-description {
    color: var(--text-1);
    line-height: 1.6;
}


/* ============================================
   Labs Section
   ============================================ */
.workflow-timeline {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    position: relative;
    padding-left: var(--spacing-md);
}

.workflow-timeline::before {
    content: '';
    position: absolute;
    left: 24px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--brand-0) 0%, var(--accent) 100%);
    opacity: 0.3;
}

.timeline-item {
    display: flex;
    gap: var(--spacing-md);
    position: relative;
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.timeline-item.visible {
    opacity: 1;
    transform: translateX(0);
}

.timeline-number {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--surface-1);
    border: 2px solid var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: var(--accent);
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

.timeline-content {
    flex: 1;
    padding-top: var(--spacing-xs);
}

.timeline-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-0);
    margin-bottom: var(--spacing-xs);
}

.timeline-description {
    color: var(--text-1);
    line-height: 1.6;
}

.callout-panel {
    background: var(--surface-0);
    border: 1px solid var(--border);
    border-left: 4px solid var(--accent);
    border-radius: 12px;
    padding: var(--spacing-md);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.callout-panel.visible {
    opacity: 1;
    transform: translateY(0);
}

.callout-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-0);
    margin-bottom: var(--spacing-xs);
}

.callout-text {
    color: var(--text-1);
    line-height: 1.6;
}

/* ============================================
   EHS Section
   ============================================ */
.ehs-section {
    position: relative;
}

.ehs-section::before {
    content: '';
    position: absolute;
    top: 10%;
    left: -5%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(27, 145, 69, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}

.mirror-visual {
    margin-bottom: var(--spacing-xl);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
    position: relative;
    z-index: 1;
}

.mirror-visual.visible {
    opacity: 1;
    transform: translateY(0);
}

.mirror-container {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--spacing-lg);
    background: var(--surface-0);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: var(--spacing-xl);
    margin-top: var(--spacing-md);
    position: relative;
    overflow: hidden;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.mirror-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, transparent 0%, var(--brand-0) 20%, var(--accent) 50%, var(--brand-0) 80%, transparent 100%);
    opacity: 0.3;
    z-index: 1;
}

/* Hide vertical divider when grid wraps to single column */
@media (max-width: 768px) {
    .mirror-container::before {
        display: none;
    }
}

.mirror-column {
    padding: var(--spacing-sm);
    position: relative;
    z-index: 2;
}

.mirror-header {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--brand-1);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.mirror-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.mirror-list li {
    color: var(--text-1);
    padding-left: var(--spacing-md);
    position: relative;
    line-height: 1.7;
    font-size: 1.05rem;
}

.mirror-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 600;
}

.mirror-divider {
    width: 2px;
    background: linear-gradient(180deg, transparent 0%, var(--brand-0) 50%, transparent 100%);
    opacity: 0.3;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    position: relative;
    z-index: 1;
}

.benefit-item {
    background: var(--surface-0);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--spacing-md);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.benefit-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--brand-0), var(--accent));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.benefit-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.benefit-item:hover {
    border-color: var(--brand-0);
}

.benefit-item:hover::before {
    opacity: 1;
}

.benefit-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-0);
    margin-bottom: var(--spacing-xs);
}

.benefit-text {
    color: var(--text-1);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* ============================================
   Pilot Section
   ============================================ */
.pilot-section {
    position: relative;
}

.pilot-section::before {
    content: '';
    position: absolute;
    top: 20%;
    right: -8%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(111, 127, 183, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}
.validation-box {
    background: var(--surface-0);
    border: 1px solid var(--border);
    border-left: 4px solid var(--accent);
    border-radius: 16px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.validation-box::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(27, 145, 69, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.validation-box.visible {
    opacity: 1;
    transform: translateY(0);
}

.validation-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-0);
    margin-bottom: var(--spacing-md);
}

.validation-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.validation-list li {
    color: var(--text-1);
    padding-left: var(--spacing-md);
    position: relative;
    line-height: 1.7;
}

.validation-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-size: 1.5rem;
    line-height: 1;
}

.proof-bar {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
    transition-delay: 200ms;
    position: relative;
    z-index: 1;
}

.proof-bar.visible {
    opacity: 1;
    transform: translateY(0);
}

.proof-chip {
    background: var(--surface-1);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 8px 16px;
    font-size: 0.9rem;
    color: var(--text-1);
    font-weight: 500;
    transition: border-color var(--transition-base), background-color var(--transition-base), color var(--transition-base);
    position: relative;
    will-change: auto;
}

.proof-chip:hover {
    background: var(--surface-0);
    border-color: var(--accent);
    color: var(--text-0);
}

/* ============================================
   Security Section
   ============================================ */
.security-section {
    position: relative;
}

.security-section::after {
    content: '';
    position: absolute;
    bottom: 15%;
    left: -8%;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(27, 145, 69, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}
.security-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    position: relative;
    z-index: 1;
}

.security-item {
    background: var(--surface-0);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--spacing-md);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
    position: relative;
}

.security-item::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, var(--brand-0), var(--accent));
    border-radius: 12px;
    opacity: 0;
    z-index: -1;
    transition: opacity var(--transition-base);
}

.security-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.security-item:hover {
    border-color: var(--brand-0);
}

.security-item:hover::after {
    opacity: 0.1;
}

.security-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-0);
    margin-bottom: var(--spacing-xs);
}

.security-text {
    color: var(--text-1);
    line-height: 1.6;
    font-size: 0.95rem;
}

.security-note {
    text-align: center;
    color: var(--muted);
    font-size: 0.9rem;
    font-style: italic;
    margin-top: var(--spacing-md);
}

/* ============================================
   About Section
   ============================================ */
.about-section {
    position: relative;
}

.about-section::after {
    content: '';
    position: absolute;
    bottom: 10%;
    right: -5%;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(111, 127, 183, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}

.about-content {
    max-width: 800px;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
    position: relative;
    z-index: 1;
}

.about-content.visible {
    opacity: 1;
    transform: translateY(0);
}

.about-subtitle {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-0);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.about-subtitle:first-child {
    margin-top: 0;
}

.about-paragraph {
    color: var(--text-1);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.about-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.about-list li {
    color: var(--text-1);
    padding-left: var(--spacing-md);
    position: relative;
    line-height: 1.7;
}

.about-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 600;
}

/* ============================================
   Contact Section
   ============================================ */
.contact-card {
    max-width: 600px;
    margin: 0 auto;
    background: var(--surface-0);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: var(--spacing-xl);
    text-align: center;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.contact-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(27, 145, 69, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.contact-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--brand-0), var(--accent));
    opacity: 0.5;
}

.contact-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.contact-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-0);
    margin-bottom: var(--spacing-md);
}

.contact-email {
    margin-bottom: var(--spacing-md);
}

.email-link {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.email-link:hover {
    color: var(--accent);
}

.email-link:focus {
    outline: 2px solid var(--accent);
    outline-offset: 4px;
    border-radius: 4px;
}

.contact-note {
    color: var(--text-1);
    line-height: 1.6;
    margin-bottom: var(--spacing-xs);
}

.contact-note.secondary {
    color: var(--muted);
    font-size: 0.95rem;
    margin-top: var(--spacing-sm);
}

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

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr 1.5fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    align-items: start;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-logo {
    margin-bottom: var(--spacing-xs);
}

.footer-logo-img {
    height: 32px;
    width: auto;
    max-width: 150px;
    object-fit: contain;
    opacity: 0.9;
    transition: opacity var(--transition-fast);
}

.footer-logo-img:hover {
    opacity: 1;
}

.footer-tagline {
    color: var(--muted);
    font-size: 0.875rem;
    line-height: 1.5;
    margin: 0;
}

.footer-links-section {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
}

.footer-links-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-group-title {
    color: var(--text-0);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0 0 var(--spacing-xs) 0;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin: 0;
    padding: 0;
}

.footer-link {
    color: var(--text-1);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
    display: inline-block;
}

.footer-link:hover {
    color: var(--text-0);
}

.footer-link:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: 4px;
}

.footer-contact {
    display: flex;
    justify-content: flex-end;
    align-items: start;
}

.footer-contact-card {
    background: var(--surface-0);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--spacing-md);
    text-align: right;
    transition: border-color var(--transition-base), background-color var(--transition-base);
    will-change: auto;
}

.footer-contact-card:hover {
    background: var(--surface-1);
    border-color: rgba(255, 255, 255, 0.15);
}

.footer-contact-label {
    color: var(--muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0 0 var(--spacing-xs) 0;
}

.footer-email {
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: color var(--transition-fast);
    display: block;
}

.footer-email:hover {
    color: var(--accent-2);
}

.footer-email:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: 4px;
}

.brand-assets {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.brand-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.logo-thumbnails {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.logo-thumb {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.thumb-img {
    width: 60px;
    height: auto;
    border-radius: 8px;
    border: 1px solid var(--border);
    padding: 4px;
    background: var(--surface-0);
}

.thumb-label {
    font-size: 0.75rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.copyright {
    color: var(--muted);
    font-size: 0.875rem;
}

/* Footer Responsive */
@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: 1fr 1.5fr 1fr;
        gap: var(--spacing-md);
    }
    
    .footer-links-section {
        gap: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    .footer {
        padding: var(--spacing-md) 0 var(--spacing-sm);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        margin-bottom: var(--spacing-md);
    }
    
    .footer-brand {
        text-align: center;
    }
    
    .footer-logo {
        display: flex;
        justify-content: center;
    }
    
    .footer-tagline {
        text-align: center;
    }
    
    .footer-links-section {
        justify-content: center;
        gap: var(--spacing-lg);
    }
    
    .footer-contact {
        justify-content: center;
    }
    
    .footer-contact-card {
        text-align: center;
        width: 100%;
        max-width: 300px;
    }
    
    .footer-bottom {
        padding-top: var(--spacing-sm);
    }
}

/* ============================================
   Back to Top Button
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--surface-1);
    border: 1px solid var(--border);
    color: var(--text-0);
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    z-index: 50;
    opacity: 0;
    transform: translateY(20px);
}

.back-to-top.visible {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--surface-0);
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-4px);
}

.back-to-top:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* ============================================
   Responsive Design
   ============================================ */
.mobile-menu-toggle {
    display: none;
}

.mobile-menu {
    display: none;
}

/* Show hamburger menu when nav links would overflow */
@media (max-width: 900px) {
    .mobile-menu-toggle {
        display: flex !important;
        flex-direction: column;
        justify-content: space-around;
        width: 32px;
        height: 32px;
        background: transparent;
        border: none;
        cursor: pointer;
        padding: 0;
        z-index: 200 !important;
        position: relative;
        order: 999;
        flex-shrink: 0;
    }
    
    .hamburger-line {
        width: 100%;
        height: 3px;
        background: var(--text-0);
        border-radius: 2px;
        transition: all var(--transition-base);
        transform-origin: center;
    }
    
    /* Ensure hamburger is always visible, even when header is collapsed */
    .header.collapsed .mobile-menu-toggle {
        display: flex !important;
        position: absolute;
        right: var(--spacing-md);
        top: 50%;
        transform: translateY(-50%);
        z-index: 200 !important;
    }
}

/* Mobile menu should be available whenever hamburger is visible */
@media (max-width: 900px) {
    .mobile-menu {
        position: fixed !important;
        top: var(--header-height, 60px) !important;
        left: 0 !important;
        right: 0 !important;
        background: rgba(15, 22, 35, 0.98) !important;
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border);
        z-index: 199 !important;
        display: block !important;
        transform: translateY(-100%);
        transition: transform var(--transition-base), visibility var(--transition-base), opacity var(--transition-base);
        padding: var(--spacing-md) 0;
        max-height: calc(100vh - var(--header-height, 60px));
        overflow-y: auto;
        visibility: hidden;
        opacity: 0;
        pointer-events: none;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    }
    
    .mobile-menu[aria-hidden="true"]:not(.active) {
        visibility: hidden !important;
        opacity: 0 !important;
        pointer-events: none !important;
        transform: translateY(-100%) !important;
    }
    
    .mobile-menu.active {
        transform: translateY(0) !important;
        visibility: visible !important;
        opacity: 1 !important;
        pointer-events: auto !important;
        display: block !important;
    }
    
    /* Override aria-hidden when active */
    .mobile-menu.active[aria-hidden="true"],
    .mobile-menu.active[aria-hidden="false"] {
        transform: translateY(0) !important;
        visibility: visible !important;
        opacity: 1 !important;
        pointer-events: auto !important;
        display: block !important;
    }
    
    /* Don't hide mobile menu when header is collapsed - it should still work */
    .header.collapsed .mobile-menu {
        display: block !important;
    }
    
    .header.collapsed .mobile-menu.active {
        display: block !important;
    }
    
    .mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }
    
    .mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
        transform: rotate(-45deg) translate(8px, -8px);
    }
    
    /* Mobile menu link styling - must be at 900px where menu first appears */
    .mobile-nav-links {
        list-style: none;
        display: flex !important;
        flex-direction: column;
        gap: var(--spacing-sm);
        padding: 0 var(--spacing-md);
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .mobile-menu.active .mobile-nav-links {
        visibility: visible !important;
        opacity: 1 !important;
        display: flex !important;
    }
    
    .mobile-nav-link {
        color: var(--text-0) !important;
        text-decoration: none;
        font-size: 1.25rem;
        font-weight: 500;
        padding: var(--spacing-sm) var(--spacing-md);
        border-radius: 8px;
        transition: all var(--transition-fast);
        display: block !important;
        border-left: 3px solid transparent;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .mobile-menu.active .mobile-nav-link {
        visibility: visible !important;
        opacity: 1 !important;
        display: block !important;
    }
    
    .mobile-nav-link:hover,
    .mobile-nav-link:focus {
        background: var(--surface-0);
        border-left-color: var(--accent);
        color: var(--accent);
    }
    
    .mobile-nav-link.active {
        color: var(--brand-1);
        border-left-color: var(--accent);
    }
    
    .mobile-dropdown-toggle {
        width: 100%;
        text-align: left;
        background: none;
        border: none;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: space-between;
        color: var(--text-0) !important;
        text-decoration: none;
        font-size: 1.25rem;
        font-weight: 500;
        padding: var(--spacing-sm) var(--spacing-md);
        border-radius: 8px;
        transition: all var(--transition-fast);
        border-left: 3px solid transparent;
    }
    
    .mobile-dropdown-toggle:hover,
    .mobile-dropdown-toggle:focus {
        background: var(--surface-0);
        border-left-color: var(--accent);
        color: var(--accent);
    }
    
    .mobile-dropdown-menu {
        list-style: none;
        padding-left: var(--spacing-md);
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-base);
        visibility: visible;
        opacity: 1;
    }
    
    .mobile-dropdown[aria-expanded="true"] .mobile-dropdown-menu {
        max-height: 500px;
        padding-top: var(--spacing-xs);
    }
    
    .mobile-menu.active .mobile-dropdown-menu {
        max-height: 500px !important;
        padding-top: var(--spacing-xs);
    }
    
    .mobile-dropdown-menu .mobile-nav-link {
        padding-left: calc(var(--spacing-md) + var(--spacing-sm));
        font-size: 1.1rem;
    }
}

/* Intermediate breakpoints for responsive nav */
@media (max-width: 1200px) {
    .nav-links {
        gap: 1.25rem;
        flex-wrap: nowrap;
    }
    
    .nav-link {
        font-size: 18px;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .nav-logo {
        height: 70px;
        max-width: 230px;
    }
}

@media (max-width: 1024px) {
    .nav-links {
        gap: 1rem;
        flex-wrap: nowrap;
    }
    
    .nav-link {
        font-size: 17px;
        padding: var(--spacing-xs) 10px;
    }
    
    .nav-logo {
        height: 65px;
        max-width: 210px;
    }
}

@media (max-width: 900px) {
    .nav-links {
        display: none !important;
    }
    
    .nav-cta {
        display: none;
    }
    
    .nav-logo {
        height: 60px;
        max-width: 190px;
    }
    
    /* Hide desktop dropdown menu when mobile menu is active */
    .nav-dropdown .dropdown-menu {
        display: none !important;
        visibility: hidden !important;
        opacity: 0 !important;
        pointer-events: none !important;
    }
}

@media (max-width: 768px) {
    .nav {
        padding: var(--spacing-sm) 0;
    }
    
    .nav-container {
        gap: var(--spacing-sm);
        padding: 0 var(--spacing-md);
        justify-content: space-between;
    }
    
    .nav-container .mobile-menu-toggle {
        order: 999;
        margin-left: auto;
    }
    
    .nav-links {
        display: none !important;
    }
    
    /* Hamburger and mobile menu already defined at 900px, just ensure visibility */
    .mobile-menu-toggle {
        display: flex !important;
        z-index: 200 !important;
        position: relative;
    }
    
    /* Keep hamburger visible even when header is collapsed on mobile */
    .header.collapsed .mobile-menu-toggle {
        display: flex !important;
    }
    
    .mobile-nav-links {
        list-style: none;
        display: flex !important;
        flex-direction: column;
        gap: var(--spacing-sm);
        padding: 0 var(--spacing-md);
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .mobile-menu.active .mobile-nav-links {
        visibility: visible !important;
        opacity: 1 !important;
        display: flex !important;
    }
    
    .mobile-nav-link {
        color: var(--text-0) !important;
        text-decoration: none;
        font-size: 1.25rem;
        font-weight: 500;
        padding: var(--spacing-sm) var(--spacing-md);
        border-radius: 8px;
        transition: all var(--transition-fast);
        display: block !important;
        border-left: 3px solid transparent;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .mobile-menu.active .mobile-nav-link {
        visibility: visible !important;
        opacity: 1 !important;
        display: block !important;
    }
    
    .mobile-nav-link:hover,
    .mobile-nav-link:focus {
        background: var(--surface-0);
        border-left-color: var(--accent);
        color: var(--accent);
    }
    
    .mobile-nav-link.active {
        color: var(--brand-1);
        border-left-color: var(--accent);
    }
    
    .mobile-menu-toggle:focus {
        outline: 2px solid var(--accent);
        outline-offset: 4px;
        border-radius: 4px;
    }
    
    .nav-logo {
        height: 64px;
    }
    
    .header.collapsed .nav-logo {
        height: 24px;
        max-width: 80px;
    }
    
    .section-headline {
        white-space: normal;
        font-size: clamp(2rem, 6vw, 2.5rem);
    }
    
    .hero-visual {
        display: none;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .mirror-container {
        grid-template-columns: 1fr;
        padding: var(--spacing-lg);
        max-width: 100%;
        gap: 0;
    }
    
    .mirror-container::before {
        display: none;
    }
    
    .mirror-container::after {
        content: '';
        position: absolute;
        top: 50%;
        left: var(--spacing-lg);
        right: var(--spacing-lg);
        transform: translateY(-50%);
        width: calc(100% - calc(var(--spacing-lg) * 2));
        height: 2px;
        background: linear-gradient(90deg, transparent 0%, var(--brand-0) 20%, var(--accent) 50%, var(--brand-0) 80%, transparent 100%);
        opacity: 0.3;
        z-index: 1;
    }
    
    .mirror-column {
        padding: var(--spacing-md) var(--spacing-sm);
    }
    
    .mirror-column:first-child {
        padding-bottom: var(--spacing-lg);
    }
    
    .mirror-column:last-child {
        padding-top: var(--spacing-lg);
    }
    
    .mirror-divider {
        display: none;
    }
    
    .workflow-timeline::before {
        left: 20px;
    }
    
    .section {
        padding: var(--spacing-lg) 0;
    }
    
    .hero-section {
        padding-top: calc(130px + var(--spacing-lg));
    }
    
    body.header-collapsed .hero-section {
        padding-top: calc(70px + var(--spacing-lg));
    }
}

@media (max-width: 480px) {
    .hero-ctas {
        flex-direction: column;
    }
    
    .cta-button {
        width: 100%;
    }
}

/* ============================================
   Navigation Dropdown & CTA
   ============================================ */
.nav-dropdown {
    position: relative;
}

/* Create a bridge area to keep dropdown open when moving mouse */
.nav-dropdown::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    height: 4px;
    background: transparent;
    z-index: 999;
    pointer-events: auto;
}

.dropdown-toggle {
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.dropdown-arrow {
    font-size: 0.75em;
    transition: transform var(--transition-fast);
}

.nav-dropdown:hover .dropdown-arrow,
.nav-dropdown[aria-expanded="true"] .dropdown-arrow {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 2px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-1);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.25rem 0 0.5rem 0;
    list-style: none;
    min-width: 220px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--transition-base), visibility var(--transition-base), transform var(--transition-base);
    transform: translateX(-50%) translateY(0);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    z-index: 1000;
}

/* Add invisible top padding area to make it easier to reach */
.dropdown-menu::before {
    content: '';
    position: absolute;
    top: -4px;
    left: 0;
    right: 0;
    height: 4px;
    background: transparent;
    pointer-events: auto;
}

/* Clicked open (permanent) - stays open during scroll */
.nav-dropdown[aria-expanded="true"] .dropdown-menu {
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: all !important;
    transform: translateX(-50%) translateY(0) !important;
}

.nav-dropdown[aria-expanded="true"] .dropdown-menu::before {
    pointer-events: auto;
}

/* Hover open (temporary) - only if not clicked open */
.nav-dropdown:not([aria-expanded="true"]):hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: all;
    transform: translateX(-50%) translateY(0);
}

.dropdown-link {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--text-1);
    text-decoration: none;
    transition: color var(--transition-fast), background var(--transition-fast);
}

.dropdown-link:hover {
    color: var(--text-0);
    background: var(--surface-0);
}

.dropdown-link.active {
    color: var(--brand-1);
    background: var(--surface-0);
    }
    
    .nav-cta {
    margin-left: var(--spacing-sm);
    white-space: nowrap;
}

.header.collapsed .nav-cta {
    display: none !important;
    opacity: 0 !important;
    visibility: hidden !important;
    width: 0 !important;
    height: 0 !important;
    padding: 0 !important;
    margin: 0 !important;
    overflow: hidden !important;
    pointer-events: none !important;
    position: absolute !important;
    left: -9999px !important;
    transform: scale(0) !important;
    outline: none !important;
    box-shadow: none !important;
    border: none !important;
    background: transparent !important;
}

.mobile-dropdown {
    position: relative;
}

.mobile-dropdown-toggle {
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.mobile-dropdown-menu {
    list-style: none;
    padding-left: var(--spacing-md);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
    visibility: visible;
    opacity: 1;
}

.mobile-dropdown[aria-expanded="true"] .mobile-dropdown-menu {
    max-height: 500px;
    padding-top: var(--spacing-xs);
}

/* Auto-expand concepts dropdown when mobile menu is open for better UX */

.mobile-menu.active .mobile-dropdown-menu {
    max-height: 500px !important;
    padding-top: var(--spacing-xs);
}

/* ============================================
   Page Hero & Title Styles
   ============================================ */
.page-hero {
    padding-top: calc(100px + var(--spacing-xl));
    padding-bottom: var(--spacing-lg);
    text-align: center;
}

/* Reduce spacing between title and cards on concepts pages */
.page-hero + .pillar-content {
    padding-top: var(--spacing-md);
}

.page-hero:has(+ .pillar-content) {
    padding-bottom: var(--spacing-md);
}

.page-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--brand-0) 0%, var(--brand-1) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-subtitle {
    font-size: 1.25rem;
    color: var(--text-1);
    line-height: 1.7;
    max-width: 800px;
    margin: 0 auto;
}

/* ============================================
   Home Page New Sections
   ============================================ */
.sub-hero-section {
    padding: var(--spacing-md) 0;
    background: linear-gradient(180deg, transparent 0%, rgba(111, 127, 183, 0.12) 50%, transparent 100%);
}

.sub-hero-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.sub-hero-text {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
    color: var(--text-0);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.sub-hero-description {
    font-size: 1.125rem;
    color: var(--text-0);
    line-height: 1.7;
    margin-top: var(--spacing-md);
    opacity: 0.85;
}

.problem-section {
    padding: var(--spacing-lg) 0;
    background: linear-gradient(180deg, transparent 0%, rgba(27, 145, 69, 0.10) 50%, transparent 100%);
}

.problem-section .section-headline,
.problem-section .section-intro,
.problem-section .problem-text {
    opacity: 1 !important;
    color: var(--text-0) !important;
    visibility: visible !important;
}

.problem-text {
    font-size: 1.125rem;
    color: var(--text-1);
    font-weight: 500;
    margin-top: var(--spacing-md);
    opacity: 1;
    visibility: visible;
}

.shift-section {
    padding: var(--spacing-lg) 0;
    background: linear-gradient(135deg, rgba(111, 127, 183, 0.15) 0%, rgba(27, 145, 69, 0.15) 100%);
}

.shift-content {
    max-width: 1000px;
}

.lifecycle-flow {
    margin: var(--spacing-md) 0;
}

.solution-tagline {
    margin-top: var(--spacing-md);
    font-size: 1.125rem;
}

.solution-section {
    padding: var(--spacing-lg) 0;
}

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

.shift-headline {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-0);
    opacity: 1;
}

.shift-text {
    font-size: 1.25rem;
    color: var(--text-0);
    line-height: 1.7;
    opacity: 0.9;
}

.lifecycle-flow {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin: var(--spacing-lg) 0;
}

.lifecycle-step {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--surface-0);
    border: 1px solid var(--border);
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-0);
    transition: border-color var(--transition-base), background-color var(--transition-base);
    white-space: nowrap;
    flex-shrink: 0;
    will-change: auto;
}

.lifecycle-step:hover {
    background: var(--surface-1);
    border-color: var(--brand-0);
}

.lifecycle-arrow {
    color: var(--brand-0);
    font-size: 1.25rem;
    font-weight: 600;
    flex-shrink: 0;
}

.solution-tagline {
    font-size: 1.25rem;
    color: var(--text-0);
    text-align: center;
    margin-top: var(--spacing-lg);
    opacity: 0.9;
}

.why-section {
    padding: var(--spacing-lg) 0;
    background: linear-gradient(180deg, transparent 0%, rgba(111, 127, 183, 0.08) 50%, transparent 100%);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-lg) auto;
    max-width: 1000px;
    position: relative;
    z-index: 1;
    contain: layout style;
}

.why-item {
    padding: var(--spacing-md);
    background: var(--surface-0);
    border: 1px solid var(--border);
    border-radius: 12px;
    transition: border-color var(--transition-base), background-color var(--transition-base);
    position: relative;
    z-index: 1;
    contain: layout style paint;
    min-height: 0;
}

.why-item:hover {
    background: var(--surface-1);
    border-color: var(--brand-0);
}

.why-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-0);
    margin-bottom: var(--spacing-sm);
}

.why-text {
    color: var(--text-1);
    line-height: 1.7;
}

.why-tagline {
    font-size: 1.5rem;
    color: var(--text-0);
    text-align: center;
    margin-top: var(--spacing-xl);
    line-height: 1.6;
    font-weight: 500;
}

.who-section {
    padding: var(--spacing-lg) 0;
}

.impact-section {
    padding: var(--spacing-lg) 0;
    background: linear-gradient(180deg, transparent 0%, rgba(27, 145, 69, 0.08) 50%, transparent 100%);
}

.who-grid,
.impact-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.who-item,
.impact-item {
    padding: var(--spacing-md);
    text-align: center;
    background: var(--surface-0);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: border-color var(--transition-base), background-color var(--transition-base);
    position: relative;
    z-index: 1;
    contain: layout style paint;
    min-height: 0;
}

.who-item:hover,
.impact-item:hover {
    background: var(--surface-1);
    border-color: var(--accent);
}

.who-title,
.impact-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-0);
    margin-bottom: var(--spacing-xs);
}

.who-description,
.impact-description {
    font-size: 0.9rem;
    color: var(--text-1);
    line-height: 1.6;
    margin: 0;
}

.cta-section {
    padding: var(--spacing-lg) 0;
    text-align: center;
    background: linear-gradient(135deg, rgba(111, 127, 183, 0.18) 0%, rgba(27, 145, 69, 0.18) 100%);
    border-radius: 24px;
    margin: var(--spacing-lg) auto;
    max-width: 1200px;
}

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

.cta-headline {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
    color: var(--text-0);
}

.cta-button.large {
    padding: 16px 32px;
    font-size: 1.125rem;
}

/* ============================================
   Platform Page Styles
   ============================================ */
.platform-intro {
    padding: var(--spacing-lg) 0;
}

.platform-intro-text {
    font-size: 1.25rem;
    color: var(--text-1);
    line-height: 1.8;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.platform-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
    z-index: 1;
    contain: layout style;
}

.platform-item {
    padding: var(--spacing-lg);
    background: var(--surface-0);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: border-color var(--transition-base), background-color var(--transition-base);
    position: relative;
    z-index: 1;
    contain: layout style paint;
    min-height: 0;
}

.platform-item:hover {
    background: var(--surface-1);
    border-color: var(--brand-0);
}


.platform-heading {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-0);
    margin-bottom: var(--spacing-sm);
}

.platform-text {
    font-size: 1rem;
    color: var(--text-1);
    line-height: 1.7;
}

/* ============================================
   Use Cases Page Styles
   ============================================ */
.use-case-nav {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md) 0;
}

.use-case-nav-link {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--surface-0);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-1);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: border-color var(--transition-base), background-color var(--transition-base), color var(--transition-base);
    will-change: auto;
}

.use-case-nav-link:hover {
    background: var(--surface-1);
    border-color: var(--brand-0);
    color: var(--brand-1);
}

.use-case-section {
    padding: var(--spacing-xl) 0;
}

.use-case-item {
    scroll-margin-top: 100px;
}

.use-case-item {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--surface-0);
    border: 1px solid var(--border);
    border-radius: 12px;
    position: relative;
    z-index: 1;
    contain: layout style paint;
    min-height: 0;
}

.use-case-title {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-0);
    margin-bottom: var(--spacing-lg);
}

.use-case-content {
    display: grid;
    gap: var(--spacing-lg);
    position: relative;
    z-index: 1;
    contain: layout style;
}

.use-case-problem,
.use-case-solution,
.use-case-outcome {
    padding: var(--spacing-md);
    background: var(--bg-0);
    border-radius: 8px;
}

.use-case-subtitle {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--brand-1);
    margin-bottom: var(--spacing-sm);
}

.use-case-content p {
    color: var(--text-1);
    line-height: 1.7;
}

/* ============================================
   About Page Styles
   ============================================ */
.about-intro {
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.about-intro-text {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
    color: var(--text-0);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.about-intro-description {
    font-size: 1.25rem;
    color: var(--text-1);
    line-height: 1.8;
    max-width: 900px;
    margin: 0 auto;
}

.about-content-section {
    padding: var(--spacing-xl) 0;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    position: relative;
    z-index: 1;
    contain: layout style;
}

.about-content-item {
    padding: var(--spacing-lg);
    background: var(--surface-0);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: border-color var(--transition-base), background-color var(--transition-base);
    position: relative;
    z-index: 1;
    contain: layout style paint;
    min-height: 0;
}

.about-content-item:hover {
    background: var(--surface-1);
    border-color: var(--brand-0);
}


.about-heading {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-0);
    margin-bottom: var(--spacing-sm);
}

.about-text {
    font-size: 1rem;
    color: var(--text-1);
    line-height: 1.7;
}

.about-values-section {
    max-width: 1000px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--surface-0) 0%, rgba(27, 145, 69, 0.05) 100%);
    border: 1px solid var(--border);
    border-radius: 16px;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    position: relative;
    z-index: 1;
    contain: layout style;
}

.value-item {
    padding: var(--spacing-md);
    background: var(--bg-0);
    border-radius: 12px;
    border: 1px solid var(--border);
}

.value-item strong {
    display: block;
    color: var(--text-0);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
}

.value-item p {
    color: var(--text-1);
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

/* ============================================
   Contact Page Styles
   ============================================ */
.contact-section {
    padding: var(--spacing-xl) 0;
}

.contact-form-container {
    max-width: 800px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-label {
    font-weight: 500;
    color: var(--text-0);
    font-size: 0.9rem;
}

.form-input,
.form-textarea {
    padding: 12px 16px;
    background: var(--surface-0);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-0);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: all var(--transition-base);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--brand-0);
    background: var(--surface-1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-submit {
    margin-top: var(--spacing-sm);
}

.contact-info {
    padding: var(--spacing-lg);
    background: var(--surface-0);
    border: 1px solid var(--border);
    border-radius: 12px;
}

.contact-info-text {
    color: var(--text-1);
    margin-bottom: var(--spacing-sm);
}

.contact-email-link {
    display: block;
    font-size: 1.25rem;
    color: var(--brand-1);
    text-decoration: none;
    margin-bottom: var(--spacing-md);
    transition: color var(--transition-fast);
}

.contact-email-link:hover {
    color: var(--brand-0);
}

.contact-info-note {
    color: var(--muted);
    font-size: 0.9rem;
}

/* ============================================
   Pillar Page Styles
   ============================================ */
.pillar-content {
    padding: var(--spacing-xl) 0;
    position: relative;
    z-index: 1;
    isolation: isolate;
}

/* Reduce top padding when preceded by page-hero (concepts pages) */
.page-hero + .pillar-content {
    padding-top: var(--spacing-md);
}

.pillar-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    position: relative;
    z-index: 1;
    contain: layout style;
}

.pillar-section {
    padding: var(--spacing-lg);
    background: var(--surface-0);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: border-color var(--transition-base), background-color var(--transition-base);
    position: relative;
    z-index: 1;
    contain: layout style paint;
    min-height: 0;
}

.pillar-section:hover {
    background: var(--surface-1);
    border-color: var(--brand-0);
}


.pillar-heading {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-0);
    margin-bottom: var(--spacing-sm);
}

.pillar-text {
    font-size: 1rem;
    color: var(--text-1);
    line-height: 1.7;
}

.pillar-future {
    max-width: 1000px;
    margin: var(--spacing-xl) auto 0;
    display: block;
    position: relative;
    z-index: 1;
    contain: layout style paint;
}

.pillar-cta {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--surface-0);
    border: 1px solid var(--border);
    border-radius: 12px;
    margin-top: var(--spacing-xl);
    position: relative;
    z-index: 1;
}

.pillar-cta-text {
    font-size: 1.125rem;
    color: var(--text-1);
    line-height: 1.8;
}

.pillar-link {
    color: var(--brand-1);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.pillar-link:hover {
    color: var(--brand-0);
    text-decoration: underline;
}

/* ============================================
   Typography & Spacing Refinements
   ============================================ */
.section {
    scroll-margin-top: 140px;
}

.container {
    padding-left: var(--spacing-lg);
    padding-right: var(--spacing-lg);
}

@media (min-width: 1024px) {
    .container {
        max-width: 1200px;
    }
}

@media (min-width: 1440px) {
    .container {
        max-width: 1400px;
    }
}

/* ============================================
   Subtle Animations
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.6s ease forwards;
}

.slide-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.cta-button {
    transition: background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base);
    will-change: auto;
}

/* CTA button hover effects removed to prevent rendering issues */

.cta-button:active {
    transform: translateY(0);
}

/* ============================================
   Dark Mode Compatibility
   ============================================ */
@media (prefers-color-scheme: dark) {
    /* Already dark by default, but ensure compatibility */
    :root {
        color-scheme: dark;
    }
}

/* ============================================
   Responsive Refinements
   ============================================ */
@media (max-width: 1024px) {
    .contact-form-container {
        grid-template-columns: 1fr;
    }
    
    .lifecycle-flow {
        flex-direction: column;
    }
    
    .lifecycle-arrow {
        transform: rotate(90deg);
    }
    
    .platform-content,
    .about-grid,
    .pillar-grid {
        grid-template-columns: 1fr;
    }
    
    .why-grid {
        grid-template-columns: 1fr;
    }
    
    .who-grid,
    .impact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-cta {
        display: none;
    }
    
    .why-grid,
    .who-grid,
    .impact-grid {
        grid-template-columns: 1fr;
    }
    
    .platform-heading,
    .use-case-title,
    .about-heading,
    .pillar-heading {
        font-size: 1.75rem;
    }
}

/* ============================================
   Platform Screenshots & Visuals
   ============================================ */
.solution-visual {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg) 0;
}

.platform-preview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.preview-item {
    background: var(--surface-0);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--spacing-md);
    transition: border-color var(--transition-base), background-color var(--transition-base);
    will-change: auto;
}

.preview-item:hover {
    background: var(--surface-1);
    border-color: var(--brand-0);
}

.platform-screenshot {
    width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    margin-bottom: var(--spacing-sm);
}

.preview-label {
    text-align: center;
    font-weight: 500;
    color: var(--text-1);
    font-size: 0.9rem;
    margin: 0;
}

.platform-visual-section {
    padding: var(--spacing-lg) 0;
    background: linear-gradient(180deg, transparent 0%, rgba(111, 127, 183, 0.03) 50%, transparent 100%);
}

.platform-screenshots {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
    max-width: 1400px;
    margin: 0 auto;
}

.screenshot-item {
    background: var(--surface-0);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--spacing-md);
    transition: border-color var(--transition-base), background-color var(--transition-base);
    will-change: auto;
}

.screenshot-item:hover {
    background: var(--surface-1);
    border-color: var(--brand-0);
}

.screenshot-caption {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-1);
    margin-top: var(--spacing-sm);
    margin-bottom: 0;
    line-height: 1.5;
}

.use-case-visual {
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.use-case-screenshot {
    width: 100%;
    max-width: 800px;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    transition: opacity var(--transition-base);
    will-change: auto;
}

.use-case-screenshot:hover {
    opacity: 0.9;
}

@media (max-width: 1024px) {
    .platform-preview {
        grid-template-columns: 1fr;
    }
    
    .platform-screenshots {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .platform-screenshot,
    .use-case-screenshot {
        border-radius: 8px;
    }
    
    .preview-item,
    .screenshot-item {
        padding: var(--spacing-sm);
    }
}