body {
    margin: 0;
    padding: 0;
    background-color: #121212;
    color: #f5f5f5;
    font-family: Arial, sans-serif;
    line-height: 1.7;
}

.container {
    max-width: 900px;
    margin: 60px auto;
    padding: 40px;
    background: #1c1c1c;
    border-radius: 12px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.4);
}

.banner {
    margin: 40px 0;
    text-align: center;
}

.banner img {
    width: 100%;
    max-width: 500px;
    height: auto;
    display: block;
    margin: 0 auto;
    border-radius: 12px;
    box-shadow: none;
    /*box-shadow: 0 0 20px rgba(0, 0, 0, 0.35);*/
    background: transparent;
}

h1 {
    margin-top: 0;
    font-size: 40px;
}

h2 {
    margin-top: 35px;
    font-size: 24px;
}

p,
li {
    font-size: 17px;
    color: #d0d0d0;
}

ul {
    padding-left: 24px;
}

.button,
.back {
    display: inline-block;
    margin-top: 20px;
    margin-right: 15px;
    padding: 12px 24px;
    background: #ffffff;
    color: #121212;
    text-decoration: none;
    font-weight: bold;
    border-radius: 8px;
    transition: 0.2s ease;
}

.button:hover,
.back:hover {
    opacity: 0.85;
}

.footer {
    margin-top: 50px;
    font-size: 14px;
    color: #999;
}

strong {
    color: #ffffff;
}