:root {
    --primary-color: #0d3b66;
    /* Trustworthy dark blue */
    --secondary-color: #faf0ca;
    /* Soft beige */
    --accent-color: #f4d35e;
    /* Warm yellow accent */
    --text-main: #333333;
    /* Dark gray for text */
    --text-muted: #666666;
    --bg-light: #f8f9fa;
    --border-color: #e0e0e0;
    --font-heading: 'Roboto', sans-serif;
    --font-body: 'Open Sans', sans-serif;
}

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

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

header {
    background-color: var(--primary-color);
    color: #ffffff;
    padding: 1rem 0;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    text-decoration: none;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 20px;
}

.nav-links a {
    color: #ffffff;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--accent-color);
}

.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, #1e5a8f 100%);
    color: white;
    text-align: center;
    padding: 4rem 2rem;
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-family: var(--font-heading);
}

.hero p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto;
    opacity: 0.9;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
    margin-bottom: 3rem;
}

.card {
    background: #ffffff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.card-content {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.card-tag {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    font-size: 0.8rem;
    font-weight: bold;
    padding: 4px 8px;
    border-radius: 4px;
    display: inline-block;
    align-self: flex-start;
    margin-bottom: 10px;
    text-decoration: none;
}

.card-title {
    font-size: 1.3rem;
    font-family: var(--font-heading);
    margin-bottom: 10px;
}

.card-title a {
    color: var(--text-main);
    text-decoration: none;
}

.card-title a:hover {
    color: var(--primary-color);
}

.card-excerpt {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 15px;
    flex-grow: 1;
}

.card-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: 15px;
}

/* Article layout */
.article-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    margin: 40px auto;
}

@media(max-width: 900px) {
    .article-layout {
        grid-template-columns: 1fr;
    }
}

.article-header {
    text-align: center;
    margin-bottom: 30px;
}

.article-header h1 {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.article-meta-top {
    display: flex;
    justify-content: center;
    gap: 20px;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.article-main-img {
    width: 100%;
    max-height: 450px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.article-content {
    background: #ffffff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.article-content h2 {
    color: var(--primary-color);
    font-family: var(--font-heading);
    margin: 30px 0 15px 0;
    font-size: 1.6rem;
}

.article-content h3 {
    color: var(--text-main);
    margin: 25px 0 10px 0;
    font-size: 1.3rem;
}

.article-content p {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.article-content ul,
.article-content ol {
    margin-bottom: 20px;
    padding-left: 20px;
    font-size: 1.1rem;
}

.article-content li {
    margin-bottom: 10px;
}

/* Sidebar */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.widget {
    background: #ffffff;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.widget h3 {
    font-family: var(--font-heading);
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 1.3rem;
    border-bottom: 2px solid var(--secondary-color);
    padding-bottom: 10px;
}

.widget-links {
    list-style: none;
}

.widget-links li {
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.widget-links li:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.widget-links a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 600;
    transition: color 0.3s;
    display: block;
    margin-bottom: 5px;
}

.widget-links a:hover {
    color: var(--primary-color);
}

.widget-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.author-box {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--secondary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.author-info h4 {
    margin-bottom: 5px;
    color: var(--text-main);
}

.author-info p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: #ffffff;
    padding: 40px 20px 20px;
    margin-top: 60px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-col h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--accent-color);
}

.footer-col p {
    opacity: 0.8;
    font-size: 0.95rem;
}

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

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul a {
    color: #ffffff;
    opacity: 0.8;
    text-decoration: none;
    transition: opacity 0.3s;
}

.footer-col ul a:hover {
    opacity: 1;
    text-decoration: underline;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.85rem;
    opacity: 0.7;
}

.disclaimer {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 15px;
    border-radius: 4px;
    margin-top: 20px;
    font-size: 0.8rem;
    color: #cccccc;
    text-align: center;
}

.toc {
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    padding: 20px;
    border-radius: 8px;
    margin: 30px 0;
}

.toc h3 {
    margin-top: 0;
}

.toc ul {
    list-style-type: none;
    padding-left: 0;
    margin-bottom: 0;
}

.toc li {
    margin-bottom: 8px;
}

.toc a {
    color: var(--primary-color);
    text-decoration: none;
}

.toc a:hover {
    text-decoration: underline;
}

.video-container {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    margin: 2rem 0;
    border-radius: 12px;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 12px;
}

.video-caption {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 2rem;
}

.page-header {
    margin: 40px 0 20px;
    text-align: center;
}

.page-header h1 {
    color: var(--primary-color);
    font-family: var(--font-heading);
}

.static-page-content {
    background: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    margin-bottom: 60px;
}