/* --- Base Styles --- */
body {
    font-family: "Helvetica Neue", Arial, sans-serif;

    background-color: #faf9f6; 
    color: rgb(51, 51, 51); 

    line-height: 1.6;
    margin: 3rem;
    padding: 20px;
}

/* --- ID Selector --- */
#main-header {
    background-color: #ffffff;
    padding: 20px;
    text-align: center;
    border-radius: 10px;
    border-bottom: 1px solid#c5c7c7;
}

h1 {
    color: #2c3e50;
}

/* --- Combinator Selectors --- */
nav ul {
    list-style-type: none;
    padding: 0;
}

nav ul li {
    display: inline;
    margin: 20px;
}

/* --- Pseudo-classes --- */
nav ul li a {
    text-decoration: none;
    color: #7f8c8d;
    font-weight: bold;
    padding-bottom: 5px;
}

nav ul li a:hover {
    color: #27ae60;
}

/* --- Class Selectors --- */
.active {
    color: #27ae60;
    border-bottom: 2px solid #27ae60;
}

main {
    text-align: center;
    max-width: 800px;
    margin: 40px auto;
    padding: 0 20px;
}

img {
    max-width: 60%;
    height: auto;
    border-radius: 8px; 
    margin: 20px;
}

blockquote {
    font-family: "Georgia", serif;
    font-size: 1.2em;
    border-left: 4px solid #27ae60;
    padding-left: 15px;
    margin: 30px 0;
    color: #6d6d6d;

}
.text-content ul {
    list-style-type: none;
    padding-left: 0; 
}
/* --- Table --- */

table {
    width: 100%;
    border-collapse: collapse; 
    margin-bottom: 40px;
    background-color: #ffffff;
}

caption h3{
    font-size: 1.2em;
    font-weight: bold;
    margin-bottom: 10px;
    text-align: left;
    color: #2c3e50;
}
caption {
    font-size: 1em;
    margin-bottom: 10px;
    text-align: left;
    color: #3a5067;
}

th, td {
    font-family:monospace ;
    padding: 12px 15px;
    border-bottom: 1px solid #ecf0f1;
    text-align: left;
}

th {
    background-color: #f4f6f7;
    color: #2c3e50;
    font-weight: bold;
}

tbody tr:nth-child(even) {
    background-color: #fafbfc;
}

/* ---- footer ----- */
footer {
    text-align: center;
    padding: 20px;
    color: #95a5a6;
    font-size: 0.9em;
    margin-top: 60px;
    border-top: 1px solid #e0e0e0;
}
footer a.brand > img {
    width: 130px;
}