body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f4f4;
    color: #333;
}

header {
    background: linear-gradient(135deg, #35424a, #1f2a30);
    color: #ffffff;
    padding: 20px 0;
    text-align: center;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

h1 {
    margin: 0;
    font-size: 2.5em;
}

header p {
    font-size: 1.2em;
    margin-top: 10px;
}

nav {
    margin: 20px 0;
}

nav a {
    color: #ffffff;
    text-decoration: none;
    margin: 0 15px;
}

nav a:hover {
    text-decoration: underline;
}

main {
    padding: 20px;
}

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
}

section {
    margin-bottom: 40px;
}

h2 {
    font-size: 2em;
    color: #35424a;
    border-bottom: 2px solid #35424a;
    padding-bottom: 10px;
    margin-bottom: 20px;
}

p {
    line-height: 1.6;
}

ul {
    list-style-type: none;
    padding: 0;
}

ul li {
    background: #e2e2e2;
    margin: 10px 0;
    padding: 10px;
    border-radius: 5px;
    transition: background 0.3s;
}

ul li:hover {
    background: #d4d4d4;
}

.footer {
    background: #35424a;
    color: #ffffff;
    text-align: center;
    padding: 10px 0;
    position: relative;
    bottom: 0;
    width: 100%;
    box-shadow: 0 -4px 8px rgba(0, 0, 0, 0.1);
}

footer p {
    margin: 0;
}