:root {
    --main-bg-color: #F9F9F6; /* Softer off-white */
    --border-color: #E8E8E3; /* Lighter border */
    --hover-color: #F0F0EC; /* Subtle hover background */
    --text-color: #2D2D2A; /* Slightly softer black */
    --accent-color: #5A5F4F; /* Muted olive green */
    --card-bg-color: #FFFFFF; /* Pure white for cards */
    --read-more-bar: #D8DBD1; /* Light, muted shade for bottom bar */
}

body, input, textarea {
    color: var(--text-color);
    font-family: 'Helvetica', Georgia, serif; /* Helvetica as priority */
    font-size: 18px; /* Larger base font size */
    padding: 0;
    margin: 0;
    background-color: var(--main-bg-color);
    line-height: 1.8; /* Increased leading for readability */
}

a {
    text-decoration: none;
    color: var(--text-color);
    transition: color 0.3s ease;
}

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

#header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 40px 0 20px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 50px;
}

#site-title {
    font-size: 42px; /* Slightly larger */
    font-weight: 300; /* Lighter weight */
    margin: 0;
    letter-spacing: 0.5px;
}

#article-title {
    font-size: 32px;
    font-weight: 300;
    margin: 10px 0 0 0;
    color: var(--accent-color);
    line-height: 1.4;
}

nav ul {
    list-style-type: none;
    display: flex;
    margin: 0;
    padding: 0;
}

nav li {
    margin-left: 35px;
}

nav li a {
    font-size: 18px;
    padding: 10px 5px;
    position: relative;
    font-weight: 400;
}

nav li a:hover {
    background-color: transparent;
}

nav li a:after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px;
    bottom: 0;
    left: 0;
    background-color: var(--accent-color);
    transition: width 0.3s ease;
}

nav li a:hover:after {
    width: 100%;
}

#wrapper {
    max-width: 1100px; /* Slightly narrower for focus */
    margin: 0 auto;
    padding: 0 20px;
}

.featured-article {
    margin-bottom: 50px;
    background-color: var(--card-bg-color);
    padding: 40px;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.featured-article h2 {
    font-size: 36px;
    margin-top: 0;
    margin-bottom: 20px;
    line-height: 1.4;
}

.featured-article .date {
    color: var(--accent-color);
    font-style: italic;
    margin-bottom: 20px;
    padding-bottom: 10px;
    display: block;
    font-size: 16px;
    border-bottom: 1px solid var(--border-color);
}

.featured-article .excerpt {
    margin-bottom: 25px;
    font-size: 18px;
}

.read-more {
    display: inline-block;
    padding: 10px 0;
    color: var(--accent-color);
    font-size: 16px;
    font-family: 'Helvetica', Georgia, serif; /* Helvetica as priority */
    font-weight: 400;
    position: relative;
    transition: color 0.3s ease;
}

.read-more:after {
    content: '';
    position: absolute;
    width: 100%;
    height: 1px;
    bottom: 0;
    left: 0;
    background-color: var(--read-more-bar); /* Light bar under text */
    transition: background-color 0.3s ease;
}

.read-more:hover {
    color: var(--text-color); /* Darker on hover for contrast */
}

.read-more:hover:after {
    background-color: var(--accent-color); /* Slightly darker bar on hover */
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.article-card {
    background-color: var(--card-bg-color);
    padding: 30px;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.article-card h3 {
    font-size: 26px;
    margin-top: 0;
    margin-bottom: 15px;
    line-height: 1.4;
}

.article-card .date {
    color: var(--accent-color);
    font-style: italic;
    margin-bottom: 15px;
    padding-bottom: 10px;
    display: block;
    font-size: 16px;
    border-bottom: 1px solid var(--border-color);
}

.article-card .excerpt {
    margin-bottom: 20px;
    font-size: 17px;
}

.article-page {
    background-color: var(--card-bg-color);
    padding: 50px;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.article-page h1 {
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 36px;
    line-height: 1.4;
}

.article-meta {
    color: var(--accent-color);
    font-style: italic;
    margin-bottom: 60px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    font-size: 16px;
}

.article-content {
    font-size: 18px;
    line-height: 1.8;
}

.article-content h1, .article-content h2, .article-content h3 {
    color: var(--accent-color);
    margin-bottom: 20px;
    font-size: 36px; /* Match .article-page h1 */
    line-height: 1.4;
}

.article-content h2 {
    font-size: 26px; /* Match .article-card h3 */
}

.article-content h3 {
    font-size: 22px; /* Smaller heading for consistency */
}

.article-content p {
    margin-bottom: 25px;
}

.article-content ul, .article-content ol {
    margin-bottom: 25px;
    padding-left: 30px;
}

.article-content a {
    color: var(--accent-color);
    text-decoration: underline;
}

.article-content code {
    background-color: var(--hover-color);
    padding: 2px 6px;
    border-radius: 3px;
}

.article-content pre {
    background-color: var(--hover-color);
    padding: 15px;
    border-radius: 4px;
    overflow-x: auto;
}

.excerpt h1, .excerpt h2, .excerpt h3 {
    color: var(--accent-color);
    margin-bottom: 20px;
    font-size: 26px; /* Match .article-card h3 for excerpts */
    line-height: 1.4;
}

.excerpt h2 {
    font-size: 22px;
}

.excerpt h3 {
    font-size: 18px;
}

.excerpt p {
    font-size: 17px; /* Match .article-card .excerpt */
    margin-bottom: 20px;
}

.excerpt ul, .excerpt ol {
    margin-bottom: 20px;
    padding-left: 30px;
}

.about-content .content h1, .about-content .content h2, .about-content .content h3 {
    color: var(--accent-color);
    margin-bottom: 20px;
    font-size: 36px; /* Match .article-page h1 */
    line-height: 1.4;
}

.about-content .content h2 {
    font-size: 26px; /* Match .article-card h3 */
}

.about-content .content h3 {
    font-size: 22px; /* Smaller heading for consistency */
}

.about-content .content p {
    font-size: 18px;
    margin-bottom: 25px;
}

.about-content .content ul, .about-content .content ol {
    margin-bottom: 25px;
    padding-left: 30px;
}

#footer {
    margin-top: 80px;
    padding: 30px 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
    font-size: 14px;
    color: var(--accent-color);
}

/* Responsive styles */
@media (max-width: 900px) {
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (max-width: 600px) {
    #header {
        flex-direction: column;
        align-items: flex-start;
        padding: 30px 0 15px;
    }

    nav {
        margin-top: 25px;
        width: 100%;
    }

    nav ul {
        justify-content: flex-start;
    }

    nav li {
        margin-left: 20px;
    }

    .articles-grid {
        grid-template-columns: 1fr;
    }

    .featured-article, .article-card, .article-page {
        padding: 25px;
    }

    #site-title {
        font-size: 36px;
    }

    .featured-article h2, .article-page h1 {
        font-size: 30px;
    }

    .article-card h3 {
        font-size: 24px;
    }
}