:root {
    --color-primary: #002855;
    --color-secondary: #F2A900;
    --color-light-bg: #E6F0FF;
    --color-white: #FFFFFF;
    --color-text-dark: #333333;
    --color-text-light: #FFFFFF;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --spacing-unit: 1rem;
    --container-width: 1200px;
    --border-radius: 8px;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    margin-bottom: 1rem;
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

p { margin-bottom: 1rem; }

/* Utility Classes */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    background-color: var(--color-secondary);
    color: var(--color-primary);
    font-weight: 700;
    text-transform: uppercase;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    background-color: #d49000;
    transform: translateY(-2px);
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.section-title span {
    color: var(--color-secondary);
    border-bottom: 3px solid var(--color-secondary);
}

/* Header */
header {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.logo span {
    color: var(--color-secondary);
}

nav ul {
    display: flex;
    gap: 2rem;
}

nav a {
    font-weight: 500;
    font-size: 0.9rem;
    text-transform: uppercase;
}

nav a:hover {
    color: var(--color-secondary);
}

.header-cta {
    background-color: var(--color-secondary);
    color: var(--color-primary);
    padding: 8px 16px;
    font-size: 0.85rem;
    border-radius: 2px;
}

/* Hero Section */
.hero {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 4rem 0 0;
    position: relative;
    overflow: hidden;
    min-height: 600px;
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
}

.hero-text h1 {
    font-size: 3.5rem;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero-text h1 span {
    border-bottom: 5px solid var(--color-secondary);
}

.hero-text p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero-image img {
    width: 100%;
    max-height: 600px;
    object-fit: cover;
    object-position: top;
    mask-image: linear-gradient(to bottom, black 80%, transparent 100%);
}

/* Newsletter Section */
.newsletter {
    background-color: var(--color-secondary);
    padding: 3rem 0;
    color: var(--color-primary);
}

.newsletter-inner {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    align-items: center;
}

.newsletter-text h3 {
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.newsletter-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid rgba(0,0,0,0.1);
    border-radius: 4px;
}

.checkbox-group {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.submit-btn {
    grid-column: 1 / -1;
    justify-self: end;
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 10px 30px;
    border: none;
    text-transform: uppercase;
    font-weight: 700;
    cursor: pointer;
}

/* About Section */
.about {
    padding: 5rem 0;
    background-color: var(--color-light-bg);
}

.about-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image img {
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.about-text h2 {
    color: var(--color-primary);
    margin-bottom: 1.5rem;
}

/* Articles Grid Section */
.articles {
    padding: 5rem 0;
    background-color: var(--color-primary);
    color: var(--color-white);
}

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

.article-card {
    background-color: var(--color-white);
    color: var(--color-text-dark);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.article-image {
    height: 200px;
    overflow: hidden;
}

.article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.article-card:hover .article-image img {
    transform: scale(1.05);
}

.article-content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.article-content h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.article-content p {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.read-more {
    color: var(--color-primary);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.9rem;
    align-self: flex-start;
}

.read-more:hover {
    color: var(--color-secondary);
}

/* Footer */
footer {
    background-color: #001a38;
    color: var(--color-white);
    padding: 3rem 0;
    text-align: center;
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.social-icons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.copyright {
    opacity: 0.7;
}

/* Article Page Specifics */
.article-page {
    background-color: var(--color-white);
    padding: 4rem 0;
}

.article-header {
    text-align: center;
    margin-bottom: 3rem;
}

.article-header h1 {
    color: var(--color-primary);
    max-width: 800px;
    margin: 0 auto 1rem;
}

.article-meta {
    color: #888;
    font-size: 0.9rem;
}

.article-body {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
    line-height: 1.8;
}

.article-body h2 {
    color: var(--color-primary);
    margin-top: 2.5rem;
    border-bottom: 2px solid var(--color-light-bg);
    padding-bottom: 0.5rem;
}

.article-body ul, .article-body ol {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

.article-body li {
    margin-bottom: 0.5rem;
}

.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
}

.article-body th, .article-body td {
    border: 1px solid #ddd;
    padding: 12px;
    text-align: left;
}

.article-body th {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.article-body tr:nth-child(even) {
    background-color: #f9f9f9;
}

.faq-section {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid #eee;
}

.faq-item {
    margin-bottom: 1.5rem;
}

.faq-question {
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
        gap: 1rem;
    }
    
    nav ul {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .newsletter-inner {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .newsletter-form {
        grid-template-columns: 1fr;
    }
    
    .about-inner {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        order: -1;
    }
}