:root {
        --bg: #ffffff;
        --text-main: #000000;
        --text-secondary: #333333;
        --text-tertiary: #666666;
        --border: #e0e0e0;
        --border-strong: #000000;
        
        
        --font-sans: "Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;
        --font-serif: "Times New Roman", Times, Baskerville, Georgia, serif;
        
        --container: 1200px;
        --space-sm: 1rem;
        --space-md: 2rem;
        --space-lg: 4rem;
        --space-xl: 8rem;
        
        --radius-sm: 2px; 
        --radius-btn: 4px;
    }

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

    body {
        background-color: var(--bg);
        color: var(--text-main);
        font-family: var(--font-serif); 
        font-size: 18px;
        line-height: 1.6;
        -webkit-font-smoothing: antialiased;
        overflow-x: hidden;
    }

    
    h1, h2, h3, h4, h5, h6 {
        font-family: var(--font-sans);
        font-weight: 700;
        color: var(--text-main);
        line-height: 1.2;
        letter-spacing: -0.02em;
    }

    .serif-accent {
        font-family: var(--font-serif);
        font-weight: 400;
        font-style: italic;
    }
    
    .text-sans {
        font-family: var(--font-sans);
    }

    a {
        text-decoration: none;
        color: inherit;
        transition: opacity 0.2s ease;
    }
    
    a:hover {
        opacity: 0.7;
    }

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

    .grid {
        display: grid;
        gap: var(--space-md);
    }

    .section {
        padding: var(--space-lg) 0;
        border-bottom: 1px solid var(--border);
    }

    
    header {
        position: sticky;
        top: 0;
        background: var(--bg);
        border-bottom: 1px solid var(--border);
        z-index: 1000;
        padding: 1.25rem 0;
    }

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

.logo {
    display: inline-flex;
    align-items: center;
    line-height: 1;
}

.logo img {
    display: block;
    height: 70px;
    width: auto;
    max-width: none;

}


    nav ul {
        display: flex;
        gap: 2rem;
        list-style: none;
    }

    .menu-toggle {
        display: none;
        width: 42px;
        height: 42px;
        border: 1px solid var(--border);
        background: var(--bg);
        border-radius: 4px;
        padding: 9px 8px;
        cursor: pointer;
    }

    .menu-toggle span {
        display: block;
        height: 2px;
        background: var(--text-main);
        margin: 5px 0;
        transition: transform 0.2s ease, opacity 0.2s ease;
    }

    nav a {
        font-family: var(--font-sans);
        font-size: 0.9rem;
        font-weight: 500;
        color: var(--text-secondary);
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 0.75rem 1.5rem;
        background: var(--text-main);
        color: var(--bg);
        font-family: var(--font-sans);
        font-weight: 600;
        font-size: 0.9rem;
        border: 1px solid var(--text-main);
        border-radius: var(--radius-btn);
        cursor: pointer;
        transition: all 0.2s;
    }
    
    .btn:hover {
        background: transparent;
        color: var(--text-main);
    }

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

    .btn-secondary:hover {
        border-color: var(--text-main);
    }

    
    .hero {
        padding: var(--space-lg) 0 var(--space-lg);
    }

    .hero-content {
        max-width: 900px;
    }

    h1 {
        font-size: clamp(2.5rem, 5vw, 4rem);
        margin-bottom: var(--space-md);
        color: var(--text-main);
    }

    .hero-sub {
        font-size: 1.25rem;
        color: var(--text-secondary);
        max-width: 600px;
        margin-bottom: var(--space-md);
        font-family: var(--font-serif); 
    }

    .hero-actions {
        display: flex;
        gap: var(--space-sm);
        margin-bottom: var(--space-lg);
    }

    .trust-strip {
        display: flex;
        gap: var(--space-md);
        padding-top: var(--space-md);
        border-top: 1px solid var(--border);
        font-family: var(--font-sans);
        font-size: 0.85rem;
        color: var(--text-tertiary);
        text-transform: uppercase;
        letter-spacing: 0.05em;
    }
    
    .trust-item {
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }
    
    .trust-item::before {
        content: "";
        display: block;
        width: 6px;
        height: 6px;
        background: var(--text-main);
        border-radius: 50%;
    }

    
    .section-header {
        margin-bottom: var(--space-lg);
        display: flex;
        justify-content: space-between;
        align-items: baseline;
        flex-wrap: wrap;
        gap: var(--space-md);
    }

    .section-title {
        font-size: 2rem;
        max-width: 600px;
    }

    
    .problem-grid {
        display: grid;
        grid-template-columns: 1fr 2fr;
        gap: var(--space-lg);
    }

    .problem-statement {
        font-size: 1.5rem;
        font-family: var(--font-serif);
        line-height: 1.4;
    }

    .problem-label {
        font-family: var(--font-sans);
        font-weight: 700;
        text-transform: uppercase;
        font-size: 0.85rem;
        letter-spacing: 0.05em;
        margin-bottom: var(--space-sm);
        display: block;
    }

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

    .pillar-card {
        background: #f9f9f9; 
        padding: var(--space-md);
        border: 1px solid var(--border);
    }

    .pillar-icon {
        width: 40px;
        height: 40px;
        background: var(--text-main);
        margin-bottom: var(--space-md);
    }

    
    .services-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 1px;
        background: var(--border); 
        border: 1px solid var(--border);
    }

    .service-card {
        background: var(--bg);
        padding: var(--space-md);
        display: flex;
        flex-direction: column;
        height: 100%;
        transition: background 0.2s;
    }
    
    .service-card:hover {
        background: #fafafa;
    }

    .service-title {
        font-size: 1.25rem;
        margin-bottom: 0.5rem;
    }

    .service-meta {
        font-family: var(--font-sans);
        font-size: 0.85rem;
        color: var(--text-tertiary);
        margin-bottom: 1rem;
        padding-bottom: 1rem;
        border-bottom: 1px solid var(--border);
        display: flex;
        justify-content: space-between;
    }

    .service-desc {
        font-size: 1rem;
        color: var(--text-secondary);
        flex-grow: 1;
        margin-bottom: 1.5rem;
    }

    .service-link {
        font-family: var(--font-sans);
        font-weight: 600;
        font-size: 0.9rem;
        text-decoration: underline;
        text-underline-offset: 4px;
    }

    
    .use-cases-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-sm);
    }

    .use-case-item {
        border-top: 2px solid var(--text-main);
        padding-top: var(--space-sm);
    }

    .use-case-title {
        font-family: var(--font-sans);
        font-weight: 700;
        font-size: 1rem;
        margin-bottom: 0.25rem;
    }
    
    .use-case-desc {
        font-size: 0.9rem;
        color: var(--text-secondary);
        line-height: 1.4;
    }

    
    .process-steps {
        display: flex;
        justify-content: space-between;
        position: relative;
    }

    .process-steps::before {
        content: "";
        position: absolute;
        top: 24px;
        left: 0;
        right: 0;
        height: 1px;
        background: var(--border);
        z-index: 0;
    }

    .step {
        position: relative;
        z-index: 1;
        width: 18%;
    }

    .step-num {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 48px;
        height: 48px;
        background: var(--bg);
        border: 1px solid var(--text-main);
        border-radius: 50%;
        font-family: var(--font-sans);
        font-weight: 700;
        margin-bottom: var(--space-sm);
    }

    .step-title {
        font-size: 1.1rem;
        margin-bottom: 0.5rem;
    }

    .step-desc {
        font-size: 0.9rem;
        color: var(--text-secondary);
    }

    
    footer {
        background: #f5f5f5;
        padding: var(--space-lg) 0;
        margin-top: var(--space-xl);
        font-family: var(--font-sans);
        font-size: 0.9rem;
        color: var(--text-secondary);
    }

    .footer-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-lg);
        margin-bottom: var(--space-lg);
    }

.footer-col h4 {
    margin-bottom: 1rem;
    font-size: 1rem;
}

.footer-logo {
    display: inline-block;
    margin-bottom: 0.75rem;
    line-height: 1;
}

.footer-logo img {
    display: block;
    height: 44px;
    width: auto;
}

.footer-social-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 0.75rem;
}

.footer-social-row a {
    display: inline-flex;
    line-height: 1;
}

.footer-social-row img {
    display: block;
    height: auto;
    width: auto;
}


    .footer-col ul {
        list-style: none;
    }

    .footer-col li {
        margin-bottom: 0.5rem;
    }

    .legal {
        border-top: 1px solid #ddd;
        padding-top: var(--space-md);
        display: flex;
        justify-content: space-between;
        font-size: 0.8rem;
    }
    
    .grid-image-placeholder {
        width: 100%;
        height: 300px;
        background-color: #f0f0f0;
        margin-bottom: var(--space-md);
        display: flex;
        align-items: center;
        justify-content: center;
        color: #999;
        font-family: var(--font-sans);
        font-size: 0.9rem;
    }

    
    @media (max-width: 768px) {
        .section {
            padding: 2.6rem 0;
        }
        .nav-container {
            position: relative;
            gap: 0.75rem;
            align-items: center;
        }
        .menu-toggle {
            display: inline-block;
            margin-left: auto;
        }
        .nav-container nav {
            display: none;
            position: absolute;
            top: calc(100% + 10px);
            left: var(--space-md);
            right: var(--space-md);
            background: var(--bg);
            border: 1px solid var(--border);
            padding: 0.8rem 0.9rem;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
            z-index: 1100;
        }
        .nav-container nav.open {
            display: block;
        }
        .nav-container nav ul {
            display: grid;
            gap: 0.6rem;
        }
        .nav-container nav a {
            display: block;
            padding: 0.35rem 0;
        }
        .grid, .problem-grid, .pillars-grid, .footer-grid { grid-template-columns: 1fr; }
        .use-cases-grid { grid-template-columns: 1fr 1fr; }
        .services-grid { grid-template-columns: 1fr; }
        .process-steps { flex-direction: column; gap: var(--space-md); }
        .process-steps::before { display: none; }
        .step { width: 100%; }
        h1 { font-size: 2.2rem; }
        .section-header {
            margin-bottom: 1.5rem;
            gap: 0.8rem;
        }
        .hero-actions {
            flex-wrap: wrap;
            margin-bottom: 1.3rem;
        }
        .hero-actions .btn {
            width: 100%;
        }
        .hero-sub {
            font-size: 1.1rem;
        }
        .logo img { height: 60px; }
        .nav-container > .btn {
            min-width: 92px;
            padding: 0.58rem 0.78rem;
            white-space: nowrap;
            font-size: 0;
        }
        .menu-toggle[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .menu-toggle[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .nav-container > .btn::after {
            content: "Book Call";
            font-size: 0.85rem;
            line-height: 1;
        }
        .trust-strip {
            display: grid;
            grid-template-columns: 1fr;
            gap: 0.55rem;
            padding-top: 0.9rem;
        }
        .trust-item {
            font-size: 0.78rem;
            letter-spacing: 0.03em;
        }
        .contact-form input,
        .contact-form textarea,
        .contact-form select {
            width: 100%;
        }
        .legal {
            flex-direction: column;
            gap: 0.5rem;
        }
        .legal span {
            word-break: break-word;
        }
        .footer-logo img {
            height: 40px;
        }
    }