/* RESET & BASE */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', sans-serif; /* Clean, engineering feel */
    line-height: 1.6;
    color: #333;
    background-color: #f9f9f9;
}

h1, h2, h3, h4, .logo, .tagline {
    font-family: 'Oswald', sans-serif; /* Strong, structural headers */
    text-transform: uppercase;
    letter-spacing: 1px;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 25px;
}

/* NAVIGATION */
nav {
    background: #111; /* Pitch black for premium feel */
    color: #fff;
    height: 80px;
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 2px solid #333;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
}

.logo span { color: #8899a6; /* Steel Blue/Grey */ }

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: #ccc;
    transition: 0.3s;
}

.nav-links a:hover { color: #fff; }

.btn-nav {
    border: 1px solid #8899a6;
    padding: 8px 20px;
    color: #fff;
    transition: 0.3s;
}

.btn-nav:hover { background: #8899a6; color: #000 !important; }

/* HERO SECTION - Architectural Background */
.hero {
    height: 75vh;
    background: url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?ixlib=rb-1.2.1&auto=format&fit=crop&w=1950&q=80');
    background-size: cover;
    background-position: center;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(10, 15, 20, 0.85); /* Heavy dark blue overlay */
}

.hero-content {
    position: relative;
    z-index: 2;
    color: #fff;
    max-width: 900px;
}

.tagline {
    display: block;
    font-size: 0.9rem;
    color: #8899a6;
    margin-bottom: 15px;
    letter-spacing: 3px;
    font-weight: 500;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 20px;
    border-left: 5px solid #8899a6; /* Architectural accent line */
    padding-left: 20px;
    display: inline-block;
}

.hero p {
    font-size: 1.3rem;
    font-weight: 300;
    color: #ddd;
    max-width: 700px;
    margin: 0 auto;
}

/* SECTION UTILITIES */
.section-header {
    margin-bottom: 3rem;
    text-align: left;
}

.section-header h2 {
    font-size: 2.2rem;
    color: #222;
}

.line {
    width: 80px;
    height: 4px;
    background: #000;
    margin-top: 10px;
}

.section-white { padding: 6rem 0; background: #fff; }
.section-grey { padding: 6rem 0; background: #f0f2f5; }
.section-dark { padding: 6rem 0; background: #1a1e21; color: #fff; }
.section-blue { padding: 5rem 0; background: #14181c; color: #fff; border-top: 4px solid #8899a6; }

/* THESIS & METRICS */
.thesis-content {
    max-width: 800px;
    margin-bottom: 3rem;
}

.lead-text {
    font-size: 1.25rem;
    font-weight: 400;
    color: #444;
    margin-bottom: 1.5rem;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: #ccc; /* Create borders via gap */
    border: 1px solid #ccc;
}

.metric-box {
    background: #fff;
    padding: 2rem;
    text-align: center;
}

.metric-box h4 {
    font-size: 1.4rem;
    margin-bottom: 5px;
    color: #000;
}

.metric-box p {
    color: #666;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* SECTOR CARDS */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.sector-card {
    background: #252a2e;
    padding: 2.5rem;
    border-left: 3px solid #8899a6;
    transition: transform 0.3s;
}

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

.icon-wrap i {
    font-size: 2rem;
    color: #8899a6;
    margin-bottom: 1.5rem;
}

.sector-card h3 { font-size: 1.5rem; margin-bottom: 1rem; color: #fff; }
.sector-card p { color: #aaa; font-size: 0.95rem; }

/* STRATEGY SPLIT */
.content-split {
    display: flex;
    flex-wrap: wrap;
    gap: 4rem;
    align-items: center;
}

.text-side { flex: 1; min-width: 300px; }
.stat-side { flex: 1; min-width: 300px; }

.text-side h2 { margin-bottom: 1.5rem; font-size: 2rem; }
.text-side p { margin-bottom: 2rem; color: #555; }

.check-list li {
    margin-bottom: 15px;
    font-size: 1.1rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
}

.check-list i { color: #222; }

.highlight-box {
    background: #fff;
    padding: 3rem;
    border: 1px solid #ddd;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.highlight-box h3 { margin-bottom: 1rem; font-size: 1.5rem; }

/* CONTACT */
.contact-wrapper {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.contact-wrapper h2 { margin-bottom: 1rem; color: #fff; }
.contact-wrapper p { color: #aaa; margin-bottom: 2rem; }

.contact-box {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-top: 2rem;
    border: 1px solid #333;
    padding: 2rem;
    background: #1a1e21;
}

.c-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-weight: 500;
}

.c-item i { color: #8899a6; }
.c-item a:hover { text-decoration: underline; color: #8899a6; }

/* FOOTER */
footer {
    background: #000;
    color: #444;
    padding: 3rem 0;
    border-top: 1px solid #222;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-left h4 { color: #fff; letter-spacing: 2px; }

/* RESPONSIVE */
@media(max-width: 768px) {
    .hero h1 { font-size: 2.2rem; }
    .nav-links { display: none; }
    .nav-container { justify-content: center; }
    .metrics-grid { grid-template-columns: 1fr; }
}