:root {
    --primary-color: #002d5b;
    /* NFU Deep Blue */
    --secondary-color: #b08d55;
    /* Gold/Bronze accent */
    --accent-color: #e31837;
    /* Alert/Action Red */
    --text-color: #333333;
    --text-light: #ffffff;
    --bg-light: #f4f4f4;
    --bg-white: #ffffff;
    --border-color: #e0e0e0;
    --font-heading: 'Georgia', serif;
    --font-body: 'Arial', sans-serif;
    --container-width: 1200px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 32px;
    --spacing-xl: 64px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--bg-white);
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

/* Header */
header {
    background-color: var(--bg-white);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.top-bar {
    background-color: var(--primary-color);
    color: var(--text-light);
    padding: var(--spacing-sm) 0;
    font-size: 0.9rem;
}

.top-bar .container {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
}

.top-bar a {
    color: var(--text-light);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    background-color: var(--bg-white);
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-links a {
    font-weight: bold;
    color: var(--primary-color);
    position: relative;
    padding-bottom: 4px;
}

.nav-links a:hover::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--secondary-color);
}

.btn-primary {
    background-color: var(--secondary-color);
    color: var(--text-light);
    padding: 10px 20px;
    border-radius: 4px;
    font-weight: bold;
    transition: background-color 0.3s;
}

.btn-primary:hover {
    background-color: #8c6f40;
}

.btn-secondary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 8px 16px;
    border-radius: 4px;
    font-weight: bold;
    transition: all 0.3s;
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--text-light);
}

/* Hero Section */
.hero {
    background-color: var(--bg-light);
    padding: var(--spacing-xl) 0;
    text-align: left;
    background-image: linear-gradient(rgba(0, 45, 91, 0.8), rgba(0, 45, 91, 0.6)), url('https://placehold.co/1920x600/002d5b/ffffff?text=Landscape+Image');
    /* Placeholder for NFU Hero */
    background-size: cover;
    background-position: center;
    color: var(--text-light);
    min-height: 500px;
    display: flex;
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-lg);
}

/* Features/Grid Section */
.features-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-white);
}

.section-title {
    font-family: var(--font-heading);
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: var(--spacing-lg);
    border-bottom: 3px solid var(--secondary-color);
    display: inline-block;
    padding-bottom: var(--spacing-sm);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.card {
    border: 1px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    transition: box-shadow 0.3s;
    background-color: var(--bg-white);
    display: flex;
    flex-direction: column;
}

.card:hover {
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.card-image {
    height: 200px;
    background-color: #ddd;
    background-size: cover;
    background-position: center;
}

.card-content {
    padding: var(--spacing-md);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-heading);
}

.card p {
    color: #666;
    font-size: 0.95rem;
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

.card-link {
    color: var(--secondary-color);
    font-weight: bold;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.card-link:hover {
    text-decoration: underline;
}

/* Recommended Section */
.recommended-section {
    background-color: #f9f9f9;
    padding: var(--spacing-xl) 0;
    text-align: center;
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: var(--text-light);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-col h4 {
    color: var(--secondary-color);
    margin-bottom: var(--spacing-md);
    font-family: var(--font-heading);
}

.footer-col ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-col ul li a:hover {
    color: var(--secondary-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
    font-size: 0.85rem;
    color: #ccc;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        /* Simplify for now, would use burger menu in full responsive impl */
    }

    .hero h1 {
        font-size: 2rem;
    }
}