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

body {
    /* Use a professional, highly readable sans-serif font */
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

.container, .nav-container, .hero-container, .container-narrow {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.container-narrow {
    max-width: 900px; /* For intro text and specific sections */
}

/* 1. NAVIGATION BAR - Enterprise Ready */
.nav-bar-enterprise {
    background: #ffffff;
    border-bottom: 1px solid #e0e0e0; /* Subtle separation */
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 20px; /* Tighter padding for professional look */
}

.logo img {
    /* Enterprise Standard Logo Height: 40px */
    height: 40px; 
    width: auto;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.8rem;
}

.nav-links a {
    text-decoration: none;
    color: #1f2937; /* Darker text for professionalism */
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #0d47a1; /* Hover matches the new Enterprise Blue */
}

.btn-primary-small {
    background: #0d47a1;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    font-weight: 600;
    transition: background 0.3s;
}

.btn-primary-small:hover {
    background: #083884;
}

/* 2. HERO SECTION */
.hero-section-enterprise {
    /* Adjusted margin-top for the smaller navbar height */
    margin-top: 80px; 
    /* Deep, authoritative Enterprise Blue */
    background: #0d47a1;
    color: white;
    padding: 100px 20px;
    text-align: center;
}

.hero-headline-h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero-subhead-h2 {
    font-size: 1.5rem;
    margin-bottom: 3rem;
    opacity: 0.95;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

/* 3. CTA Buttons - Renamed classes for enterprise style */
.cta-buttons-group {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-cta-landowner, .btn-cta-developer {
    padding: 1.2rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    border-radius: 8px; /* Slightly less rounded than 50px */
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.7rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.btn-icon {
    font-size: 1.5rem;
}

/* Landowner button - Deeper, more refined Green */
.btn-cta-landowner {
    background: #2e7d32;
    color: white;
}

.btn-cta-landowner:hover {
    background: #1b5e20;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(46, 125, 50, 0.4);
}

/* Developer button - Solar Gold/Orange for Energy/Speed */
.btn-cta-developer {
    background: #ffb300;
    color: #1f2937;
}

.btn-cta-developer:hover {
    background: #ff8f00;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 179, 0, 0.4);
}

/* 4. SOLUTION OVERVIEW */
.solution-overview {
    padding: 80px 20px;
    background: #f9fafb;
}

.section-title-centered {
    font-size: 2.2rem;
    text-align: center;
    margin-bottom: 2rem;
    color: #0d47a1;
    font-weight: 600;
}

.intro-paragraph {
    font-size: 1.3rem;
    text-align: center;
    color: #4b5563;
    max-width: 900px;
    margin: 0 auto;
}

/* 5. CORE IP: SITE FEASIBILITY SCORE (SFS) */
.technology-sfs {
    padding: 100px 20px;
    background: white;
}

.section-title-left {
    font-size: 2.2rem;
    margin-bottom: 2rem;
    color: #1f2937;
    font-weight: 600;
    text-align: left;
}

.sfs-grid {
    display: flex;
    gap: 40px;
    align-items: center;
}

.sfs-description {
    flex: 1;
}

.sfs-description p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    line-height: 1.8;
    color: #4b5563;
    text-align: left;
}

.btn-learn-more {
    display: inline-block;
    color: #0d47a1;
    text-decoration: none;
    font-weight: 600;
    margin-top: 1rem;
    border-bottom: 2px solid #0d47a1;
    padding-bottom: 2px;
}

.sfs-visual {
    flex: 1;
    min-height: 300px; /* Placeholder for diagram/visual */
    background: #e0f2f1;
    border-radius: 10px;
}

/* 6. PROTECTED TRANSACTION MODEL */
.transaction-model-section {
    padding: 80px 20px;
    background: #f0f4f7;
}

.model-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.card-model {
    background: white;
    padding: 2.5rem;
    border-radius: 10px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s;
    border-top: 5px solid #0d47a1;
}

.card-model:hover {
    transform: translateY(-5px);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.card-model h3 {
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
    color: #1f2937;
}

.card-model p {
    color: #6b7280;
    font-size: 1rem;
}

/* 7. STAKEHOLDER BENEFITS */
.stakeholder-benefits {
    padding: 100px 20px;
    background: white;
}

.benefit-tabs {
    display: flex;
    gap: 40px;
    margin-top: 3rem;
}

.benefit-tab {
    flex: 1;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.developer-tab {
    background: #e3f2fd; /* Light blue background */
    border-left: 5px solid #0d47a1;
}

.landowner-tab {
    background: #e8f5e9; /* Light green background */
    border-left: 5px solid #2e7d32;
}

.benefit-tab h3 {
    font-size: 1.6rem;
    margin-bottom: 1.5rem;
    color: #1f2937;
}

.benefit-tab ul {
    list-style: none;
    padding-left: 0;
}

.benefit-tab li {
    background: url('data:image/svg+xml;charset=UTF-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="%230d47a1"><path d="M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z"/></svg>') no-repeat left 6px;
    background-size: 18px 18px;
    padding-left: 30px;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    color: #4b5563;
}
/* Adjust checkmark color for Landowner tab */
.landowner-tab li {
    background: url('data:image/svg+xml;charset=UTF-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="%232e7d32"><path d="M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z"/></svg>') no-repeat left 6px;
    background-size: 18px 18px;
}

/* 8. FINAL CALL TO ACTION */
.contact-section-final {
    padding: 80px 20px;
    text-align: center;
    background: #1f2937; /* Dark background for strong contrast */
    color: white;
}

.cta-summary {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    opacity: 0.9;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* 9. FOOTER - Authority */
.footer-enterprise {
    background: #101620; /* Slightly darker than CTA for depth */
    color: #ccc;
    text-align: center;
    padding: 2rem 20px;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.footer-details p {
    margin: 0.3rem 0;
    font-size: 0.9rem;
}

.authority-statement {
    font-weight: 600;
    color: #ffffff;
}

.footer-links a {
    color: #ccc;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #0d47a1;
}


/* Responsive Design */
@media (max-width: 1024px) {
    .sfs-grid, .benefit-tabs, .footer-container {
        flex-direction: column;
        text-align: center;
    }
    
    .sfs-description, .sfs-visual {
        flex: none;
    }

    .section-title-left {
        text-align: center;
    }

    .hero-headline-h1 {
        font-size: 3rem;
    }
    
    .hero-subhead-h2 {
        font-size: 1.3rem;
    }
}

@media (max-width: 768px) {
    .logo img {
        height: 35px; /* Final mobile height */
    }
    
    .hero-section-enterprise {
        margin-top: 70px; /* Reduced margin top */
        padding: 60px 20px;
    }
    
    .hero-headline-h1 {
        font-size: 2.2rem;
    }
    
    .hero-subhead-h2 {
        font-size: 1.1rem;
    }
    
    .cta-buttons-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn-cta-landowner, .btn-cta-developer {
        width: 100%;
        max-width: none;
    }
    
    .nav-links {
        display: none; /* Keep simple navigation on mobile */
    }

    .footer-container {
        align-items: center;
    }

    .footer-links {
        margin-top: 1rem;
    }
}