/* ===== Element selectors ===== */
h1, h2 {
    font-family: Arial, sans-serif;
    color: darkblue;
}

p {
    font-size: 16px;
    line-height: 1.6;
    color: #333;
}

/* ===== Body Layout (Jello Layout Style) ===== */
body {
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    font-family: Arial, sans-serif;
    background-color: #eef2f7;
}

/* ===== Header ===== */
#main-header {
    background-color: #f0f8ff;
    padding: 20px;
    text-align: center;
    border-bottom: 3px solid darkblue;
}

/* ===== Navigation ===== */
.nav-menu ul {
    list-style-type: none;
    padding: 0;
    margin: 10px 0 0 0;
}

.nav-menu li {
    display: inline;
}

.nav-menu a {
    text-decoration: none;
    color: green;
    margin: 0 15px;
    font-weight: bold;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: red;
}

/* ===== Main Content ===== */
main {
    flex: 1;
    padding: 30px;
    max-width: 900px;
    margin: auto;
}

/* ===== Sections ===== */
section {
    margin-bottom: 25px;
    background-color: #ffffff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 3px 3px 10px rgba(0,0,0,0.1);
}

/* ===== Footer ===== */
#main-footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 15px;
}