body {
    background: #252b36; /* Change this color theme for your preference */
    color: #f3f7fc;
    font-family: 'Montserrat', Arial, sans-serif;
    margin: 0;
    min-height: 100vh;
}
nav {
    background: #1b2330;
    padding: 0.6em 0;
}
.nav-container {
    width: 93%;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
nav .logo {
    font-size: 1.6em;
    text-decoration: none;
    color: #32bf96;
    font-weight: bold;
}
nav ul {
    list-style: none;
    display: flex;
    margin: 0;
    padding: 0;
}
nav ul li {
    margin-left: 2em;
}
nav ul li a {
    color: #f3f7fc;
    text-decoration: none;
    padding: 0.5em 1em;
    border-radius: 4px;
    transition: background 0.2s;
}
nav ul li a:hover {
    background: #32bf96;
    color: #1b2330;
}
main {
    width: 92%;
    max-width: 950px;
    margin: 2.5em auto;
    background: #212838;
    border-radius: 12px;
    padding: 2.5em;
    box-shadow: 0 2px 18px rgba(0,0,0,0.16);
}
article h1, article h2 {
    color: #32bf96;
    margin-top: 1.25em;
}
ul {
    margin-bottom: 1.4em;
}
footer {
    background: #1b2330;
    color: #f3f7fc;
    text-align: center;
    padding: 1em 0;
    position: relative;
    margin-top: 2.4em;
}
.footer-container {
    width: 93%;
    margin: 0 auto;
}