/* Typography and Layout */
body {
    font-family: 'Inter', sans-serif;
    line-height: 1.7;
    color: #222;
    background-color: #fff;
    margin: 0;
    padding: 0;
}

.article-container {
    max-width: 800px;
    margin: auto;
    padding: 2rem 1rem;
}

article h1 {
    font-size: 2.2rem;
    color: #087e47;
    text-align: center;
    margin-bottom: 0rem;
}

article h2 {
    font-size: 1.7rem;
    color: #1a1a1a;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
}

article h3 {
    font-size: 1.3rem;
    color: #444;
    margin-top: 1.8rem;
    margin-bottom: 0.6rem;
}

article p {
    font-size: 1rem;
    margin-bottom: 1rem;
}

article ul {
    margin: 1rem 0 1rem 1.5rem;
    padding-left: 1rem;
}

article li {
    margin-bottom: 0.5rem;
}

/* Navbar */
.navbar {
    background-color: #022527;
        padding: 15px 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: #fff;
}

.navbar .logo a {
    display: flex;
    align-items: center;
    color: #fff;
    text-decoration: none;
        gap: 10px;
}


.navbar .logo img {
    width: auto;
    height: 40px;
}

.navbar .site-name {
    font-weight: bold;
    font-size: 1.2rem;
    color: #fff;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 1rem;
}

.nav-links li a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
}

.nav-links li a:hover {
    color: #0077cc;
}

/* Sections */
.introduction {
    background-color: #f8f9fc;
    padding: 1.2rem;
    border-left: 4px solid #045f64;
    margin-bottom: 2rem;
}

.common-mistakes,
.faq-section,
.related-articles {
    background-color: #f2f2f2;
    padding: 1.5rem;
    margin-top: 2rem;
    border-radius: 8px;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem 1rem;
    font-size: 0.95rem;
    color: #666;
    background-color: #fafafa;
    margin-top: 3rem;
    border-top: 1px solid #ddd;
}

footer em {
    display: block;
    margin-bottom: 0.5rem;
}

/* Images */
article img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 1.5rem auto;
}

/* Links */
a {
    color: #0b3d91;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}
#backToTop {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: none;
    background-color: #0077cc;
    color: white;
    border: none;
    padding: 10px 15px;
    font-size: 18px;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    transition: opacity 0.3s ease;
}