:root {
    --color-slate: #6B7280; /* Darker slate for better contrast on white */
    --color-slate-dark: #D1D5DB; /* Lighter borders */
    --color-carbon: #FFFFFF; /* White background */
    --color-carbon-alt: #F9FAFB; /* Off-white block background */
    --color-white: #0F1115; /* Black text */
    
    --grid-border: 1px solid var(--color-slate-dark);
    --grid-border-thick: 2px solid var(--color-slate-dark);
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
}

/* Reset Constraints */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-style: normal !important; /* Strictly no italics */
}

html {
    scroll-behavior: smooth;
    font-family: var(--font-main);
    background-color: var(--color-carbon);
    color: var(--color-white);
    font-size: 16px;
    line-height: 1.6;
}

body {
    position: relative;
    overflow-x: hidden;
}

/* Abstract Noise Overlay (Industrial Texture) */
.noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.02;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* Typography Scale */
h1, h2, h3, h4 {
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
}

h1.hero-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    font-size: clamp(2rem, 5vw, 4rem);
    text-transform: uppercase;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.05em;
}

h2.hero-subtitle {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    color: var(--color-white);
    max-width: 800px;
    margin-bottom: var(--spacing-lg);
    font-weight: 600;
}

.hero-text {
    font-size: 1.25rem;
    color: var(--color-slate);
    max-width: 800px;
    font-weight: 400;
}

h2.section-title {
    font-size: clamp(2rem, 5vw, 4rem);
    text-transform: uppercase;
    margin-bottom: var(--spacing-sm);
}

h3 {
    font-size: 1.5rem;
    text-transform: uppercase;
    margin-bottom: var(--spacing-sm);
    color: var(--color-white);
}

h4 {
    font-size: 1.25rem;
    text-transform: uppercase;
    color: var(--color-white);
    margin-bottom: 0.5rem;
}

p {
    font-size: 1.125rem;
    color: var(--color-slate);
    max-width: 65ch;
}

.small-lead {
    font-size: 1rem;
    color: var(--color-slate);
}

.section-notice {
    font-size: 0.875rem;
    color: var(--color-slate-dark);
    text-transform: uppercase;
    font-weight: 600;
}

/* Brutalist Utilities */
.d-block { display: block; }
.border-bottom { border-bottom: var(--grid-border); }
.border-top { border-top: var(--grid-border); }
.border-right { border-right: var(--grid-border); }
.alternate-bg { background-color: var(--color-carbon-alt); }
.mt-auto { margin-top: auto; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-md { margin-bottom: var(--spacing-md); }
.text-center { text-align: center; }

/* Grid System Constraints */
.grid-container {
    max-width: 1440px;
    margin: 0 auto;
    border-left: var(--grid-border);
    border-right: var(--grid-border);
    position: relative;
    padding: 0 var(--spacing-md);
}

.viewport-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
}

.content-section {
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
}

/* Navigation */
.main-nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(8px);
    border-bottom: var(--grid-border);
    display: grid;
    grid-template-columns: 200px 1fr;
    height: 60px;
}

.nav-brand {
    border-right: var(--grid-border);
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-md);
    font-weight: 800;
    letter-spacing: 0.1em;
    font-size: 0.875rem;
    color: var(--color-white);
}

.nav-links {
    display: flex;
}

.nav-link {
    color: var(--color-slate);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0 var(--spacing-md);
    display: flex;
    align-items: center;
    border-right: var(--grid-border);
    transition: all 0.2s;
    text-transform: uppercase;
}

.nav-link:hover, .nav-link.active {
    color: var(--color-carbon);
    background: var(--color-white);
}

/* Hero Section */
.hero-block {
    padding: 160px 0 var(--spacing-xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 80vh;
}

.profile-thumb {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 0;
    border: 2px solid var(--color-slate-dark);
}

/* Social Proof Bar */
.social-proof-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    min-height: 120px;
    align-items: center;
    margin: 0 calc(var(--spacing-md) * -1); /* Pull out to container edge */
}

.logo-item {
    padding: var(--spacing-md);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-slate-dark);
    text-transform: uppercase;
    border-right: var(--grid-border);
    height: 100%;
    letter-spacing: 0.1em;
    filter: grayscale(100%);
    transition: filter 0.3s;
}

.logo-item img {
    max-width: 120px;
    max-height: 40px;
    object-fit: contain;
}

.logo-item:hover {
    filter: grayscale(0%);
}

.logo-item:last-child {
    border-right: none;
}

.tvh-logo { font-size: 2rem; letter-spacing: -0.05em; display: flex; flex-direction: column; line-height: 0.8; }
.tvh-logo .logo-small { font-size: 0.6rem; letter-spacing: 0.2em; font-weight: 600; margin-top: 2px; }
.wb-logo { font-family: serif; font-weight: 600; }

/* Action Buttons (Monochromatic) */
.btn-primary {
    display: inline-block;
    padding: 1rem 2rem;
    font-weight: 600;
    text-transform: uppercase;
    text-decoration: none;
    font-size: 0.875rem;
    transition: all 0.2s ease;
    border: 1px solid var(--color-white);
    background-color: transparent;
    color: var(--color-white);
}

.btn-primary:hover {
    background-color: var(--color-white);
    color: var(--color-carbon);
}

/* Pillars / Grid Layouts */
.pillars-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    margin: 0 calc(var(--spacing-md) * -1); 
}

.pillar-card {
    padding: 4rem var(--spacing-md) var(--spacing-lg);
    border-right: var(--grid-border);
    position: relative;
    transition: background-color 0.3s;
}

.pillar-card:hover {
    background-color: var(--color-carbon); 
}

.pillar-card:last-child {
    border-right: none;
}

.pillar-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--color-slate-dark);
    position: absolute;
    top: 1rem;
    left: 1rem;
    color: #9CA3AF;
    line-height: 1;
    z-index: 0;
}

.pillar-card h3, .pillar-card p {
    position: relative;
    z-index: 1;
}

/* Layout (Scar Tissue replacement) */
.esg-details {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    margin: 0 calc(var(--spacing-md) * -1); 
}

.detail-item {
    padding: var(--spacing-lg) var(--spacing-md);
    border-right: var(--grid-border);
    display: flex;
    flex-direction: column;
}

.detail-item:last-child {
    border-right: none;
}

/* Capabilities section */
.capability-block {
    padding: var(--spacing-xl) var(--spacing-md);
}

.centered-lead {
    margin: 0 auto;
    text-align: center;
}

.language-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.lang-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    border: var(--grid-border);
    padding: var(--spacing-lg) var(--spacing-md);
    transition: background-color 0.3s;
}

.lang-item:hover {
    background-color: var(--color-white);
}

.lang-item:hover .lang-level,
.lang-item:hover .lang-name {
    color: var(--color-carbon);
}

.lang-level {
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 800;
    color: var(--color-slate);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.1em;
    transition: color 0.3s;
}

.lang-name {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-white);
    transition: color 0.3s;
}

/* Contact / Logistics */
.contact-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    min-height: 60vh;
}

.contact-header {
    padding: var(--spacing-lg) var(--spacing-md) var(--spacing-lg) 0;
    display: flex;
    flex-direction: column;
}

.meta-title {
    font-size: 0.875rem;
    letter-spacing: 0.1em;
    color: var(--color-slate);
    margin-bottom: var(--spacing-sm);
}

.email-link {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--color-white);
    text-decoration: none;
    transition: color 0.3s;
}

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

.logistics-sidebar {
    padding: var(--spacing-lg) 0 var(--spacing-lg) var(--spacing-lg);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Footer */
.site-footer {
    padding: var(--spacing-md);
    text-align: center;
    color: var(--color-slate-dark);
    font-size: 0.875rem;
    text-transform: uppercase;
    font-weight: 800;
}
.footer-content {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
}

/* Animations (Sober & Professional) */
.fade-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in {
    opacity: 0;
    transition: opacity 1s ease-out;
}

.slide-right {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.block-reveal {
    clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
    transform: translateY(10px);
    transition: clip-path 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.observe-me.is-visible .fade-up,
.observe-me.is-visible .fade-in,
.observe-me.is-visible .slide-right {
    opacity: 1;
    transform: translate(0);
}

.observe-me.is-visible .block-reveal {
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    transform: translateY(0);
}

/* Animation Delays */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* Responsive adjustments */
@media (max-width: 1024px) {
    .esg-details {
        grid-template-columns: 1fr;
    }
    .detail-item {
        border-right: none;
        border-bottom: var(--grid-border);
    }
    .logistics-sidebar {
        padding-left: 0;
    }
    .language-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 768px) {
    .main-nav {
        grid-template-columns: 1fr;
        height: auto;
    }
    .nav-brand {
        border-right: none;
        border-bottom: var(--grid-border);
        padding: var(--spacing-sm) var(--spacing-md);
    }
    .nav-links {
        overflow-x: auto;
    }
    .pillars-grid {
        grid-template-columns: 1fr;
    }
    .pillar-card {
        border-right: none !important;
    }
    .border-top-mobile {
        border-top: var(--grid-border);
    }
    .social-proof-bar {
        grid-template-columns: repeat(2, 1fr);
    }
    .logo-item {
        border-bottom: var(--grid-border);
    }
    .logo-item:nth-child(even) {
        border-right: none;
    }
    .logo-item:nth-child(n+3) {
        border-bottom: none;
    }
    .hero-title {
        word-break: break-word;
    }
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    .language-grid {
        grid-template-columns: 1fr;
    }
}