:root {
    --bg-color: #ffffff; /* Crisp White Background */
    --bg-alt: #f4f7fa;
    --navy-primary: #00234b; /* Deep Strategic Navy */
    --navy-secondary: #003366;
    --text-primary: #00234b; /* Navy Text */
    --text-secondary: #4a5568;
    --accent-color: #00234b;
    --accent-light: #e6ebf2;
    --white: #ffffff;
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    --content-width: 1100px;
    --ease: cubic-bezier(0.16, 1, 0.3, 1);
    --transition: all 0.6s var(--ease);
}

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

html { scroll-behavior: smooth; }

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-x: hidden;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.site-header {
    max-width: var(--content-width);
    margin: 0 auto;
    width: 100%;
    padding: 3rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    animation: fadeIn 1.2s var(--ease) forwards;
    z-index: 10;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-decoration: none;
    color: var(--navy-primary);
    transition: var(--transition);
}

.main-nav { display: flex; gap: 3rem; }

.main-nav .nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-weight: 600;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
}

.main-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--navy-primary);
    transition: var(--transition);
}

.main-nav .nav-link:hover {
    color: var(--navy-primary);
}

.main-nav .nav-link:hover::after, .main-nav .nav-link.active::after {
    width: 100%;
}

.main-nav .nav-link.active {
    color: var(--navy-primary);
}

main {
    max-width: var(--content-width);
    margin: 0 auto;
    width: 100%;
    padding: 2rem 2rem 10rem;
    flex-grow: 1;
    animation: fadeUp 1.2s var(--ease) 0.2s forwards;
    opacity: 0;
}

h1 {
    font-family: var(--font-heading);
    font-size: clamp(2.2rem, 4vw, 3.5rem);
    font-weight: 400;
    line-height: 1.2;
    margin-bottom: 4rem;
    color: var(--navy-primary);
    max-width: 900px;
}

h2 {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    color: var(--navy-primary);
    margin-bottom: 3rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

h2::after {
    content: '';
    height: 1px;
    flex-grow: 1;
    max-width: 60px;
    background-color: var(--navy-primary);
    opacity: 0.3;
}

p {
    font-size: clamp(1.05rem, 1.5vw, 1.15rem);
    font-weight: 400;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 800px;
}

p strong {
    color: var(--navy-primary);
    font-weight: 600;
}

.author {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--navy-primary);
    font-weight: 400;
    font-style: italic;
    margin-top: 4rem;
    display: block;
}

footer {
    background-color: var(--navy-primary);
    color: var(--white);
    padding: 8rem 0 4rem;
    margin-top: auto;
}

.footer-content {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    gap: 4rem;
    flex-wrap: wrap;
}

.footer-bottom {
    max-width: var(--content-width);
    margin: 4rem auto 0;
    padding: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    color: rgba(255,255,255,0.6);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    flex-wrap: wrap;
    gap: 2rem;
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 1.2rem 3rem;
    background-color: var(--navy-primary);
    color: var(--white);
    text-decoration: none;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-weight: 700;
    transition: var(--transition);
    border: 1px solid var(--navy-primary);
    cursor: pointer;
}

.btn:hover {
    background-color: transparent;
    color: var(--navy-primary);
}

.btn-outline {
    background-color: transparent;
    color: var(--navy-primary);
    border: 1px solid var(--navy-primary);
}

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

/* --- Hero Section --- */
.hero-image-container {
    width: 100%;
    height: 60vh;
    min-height: 500px;
    background-image: url('hero.jpg'); 
    background-size: cover;
    background-position: center;
    position: relative;
    margin-bottom: 6rem;
    box-shadow: 0 30px 60px -20px rgba(0,35,75,0.2);
}

.hero-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(to bottom, rgba(0,35,75,0.1), rgba(0,35,75,0.4));
}

/* --- Sector Grid --- */
.sector-grid {
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); 
    gap: 2rem;
    margin-top: 6rem;
}

.sector-card {
    background-color: var(--bg-alt);
    padding: 4rem 3rem;
    transition: var(--transition);
    border-top: 4px solid transparent;
}

.sector-card:hover {
    transform: translateY(-10px);
    border-top-color: var(--navy-primary);
    background-color: var(--white);
    box-shadow: 0 20px 40px rgba(0,35,75,0.1);
}

.sector-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--navy-primary);
    margin-bottom: 1.5rem;
}

.sector-card p {
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* --- Forms --- */
.form-group {
    margin-bottom: 2rem;
}

.form-group label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--navy-primary);
}

.form-control {
    width: 100%;
    padding: 1rem;
    border: 1px solid #e2e8f0;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--bg-alt);
}

.form-control:focus {
    outline: none;
    border-color: var(--navy-primary);
    background-color: var(--white);
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .site-header { padding: 2rem 1.5rem; }
    .main-nav { display: none; }
    .hero-image-container { height: 40vh; min-height: 300px; }
    .footer-content { flex-direction: column; gap: 3rem; }
    h1 { font-size: 2rem; }
}

.burger-btn {
    display: none;
    background: none;
    border: none;
    color: var(--navy-primary);
    cursor: pointer;
}

@media (max-width: 768px) {
    .burger-btn { display: block; }
}

/* --- Scroll Reveal --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1s var(--ease), transform 1s var(--ease);
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}