:root {
    --corporate-blue: #002366;
    --platinum-silver: #E5E4E2;
    --authority-blue: #0047AB;
    --text-main: #333333;
    --text-light: #666666;
    --bg-light: #f9f9f9;
    --white: #ffffff;
    --border-color: #dddddd;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Georgia', 'Times New Roman', serif; /* Serif for readability/authority */
}

body {
    background-color: var(--bg-light);
    color: var(--text-main);
    line-height: 1.8;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
header {
    background-color: var(--corporate-blue);
    color: var(--white);
    padding: 15px 0;
    border-bottom: 4px solid var(--platinum-silver);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 50px;
}

.top-nav a {
    color: var(--platinum-silver);
    text-decoration: none;
    margin-left: 20px;
    font-family: 'Arial', sans-serif;
    font-size: 0.9rem;
    text-transform: uppercase;
}

.top-nav a:hover {
    color: var(--white);
    text-decoration: underline;
}

/* Main Layout */
.main-container {
    max-width: 1200px;
    margin: 30px auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 250px 1fr 250px; /* Left Nav, Content, Right Sidebar */
    gap: 30px;
    flex: 1;
}

/* Left Sidebar (Navigation) */
.sidebar-left {
    background: var(--white);
    padding: 20px;
    border: 1px solid var(--border-color);
    height: fit-content;
}

.sidebar-title {
    font-family: 'Arial', sans-serif;
    font-weight: bold;
    color: var(--corporate-blue);
    border-bottom: 2px solid var(--platinum-silver);
    padding-bottom: 10px;
    margin-bottom: 15px;
}

.nav-list {
    list-style: none;
}

.nav-list li {
    margin-bottom: 10px;
    border-bottom: 1px solid #eee;
    padding-bottom: 5px;
}

.nav-list li a {
    text-decoration: none;
    color: var(--text-main);
    font-size: 0.95rem;
    display: block;
}

.nav-list li a:hover {
    color: var(--authority-blue);
    padding-left: 5px;
    transition: padding 0.2s;
}

/* Main Content Area */
.content-area {
    background: var(--white);
    padding: 40px;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.article-header {
    margin-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 20px;
}

.article-title {
    font-size: 2.5rem;
    color: var(--corporate-blue);
    margin-bottom: 10px;
}

.article-meta {
    font-family: 'Arial', sans-serif;
    font-size: 0.85rem;
    color: var(--text-light);
}

.content-body h2 {
    font-family: 'Arial', sans-serif;
    color: var(--authority-blue);
    margin-top: 30px;
    margin-bottom: 15px;
    font-size: 1.5rem;
    border-left: 4px solid var(--platinum-silver);
    padding-left: 10px;
}

.content-body h3 {
    font-family: 'Arial', sans-serif;
    color: var(--text-main);
    margin-top: 25px;
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.content-body p {
    margin-bottom: 15px;
    text-align: justify;
}

.content-body ul, .content-body ol {
    margin-bottom: 15px;
    padding-left: 20px;
}

.content-body li {
    margin-bottom: 5px;
}

.info-box {
    background-color: #f0f4f8;
    border-left: 4px solid var(--corporate-blue);
    padding: 15px;
    margin: 20px 0;
    font-size: 0.95rem;
}

.cta-button {
    display: inline-block;
    background-color: var(--authority-blue);
    color: var(--white);
    padding: 12px 30px;
    text-decoration: none;
    font-family: 'Arial', sans-serif;
    font-weight: bold;
    border-radius: 4px;
    margin-top: 20px;
    transition: background 0.3s;
}

.cta-button:hover {
    background-color: var(--corporate-blue);
}

/* Right Sidebar (Widgets) */
.sidebar-right {
    height: fit-content;
}

.widget {
    background: var(--white);
    border: 1px solid var(--border-color);
    padding: 20px;
    margin-bottom: 20px;
}

.widget-title {
    font-family: 'Arial', sans-serif;
    font-size: 1rem;
    font-weight: bold;
    color: var(--text-main);
    margin-bottom: 15px;
    text-transform: uppercase;
}

.promo-img {
    width: 100%;
    height: auto;
    margin-bottom: 10px;
    border: 1px solid #eee;
}

/* Footer */
footer {
    background-color: #222;
    color: #aaa;
    padding: 40px 0;
    margin-top: auto;
    font-family: 'Arial', sans-serif;
    font-size: 0.9rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
}

.footer-col h4 {
    color: var(--white);
    margin-bottom: 15px;
}

.footer-col ul {
    list-style: none;
}

.footer-col a {
    color: #aaa;
    text-decoration: none;
}

.footer-col a:hover {
    color: var(--white);
}

/* Responsive */
@media (max-width: 992px) {
    .main-container {
        grid-template-columns: 1fr;
    }
    
    .sidebar-left, .sidebar-right {
        display: none; /* Simplify for mobile, or move to bottom */
    }
}