* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: #0b0b0b;
    color: #f2f2f2;
    font-family: Arial, sans-serif;
}

main {
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 20px;
}

h1 {
    text-align: center;
    color: #ff1a1a;
    margin-bottom: 40px;
}

section {
    background: #151515;
    border: 1px solid #2b2b2b;
    border-radius: 12px;
    padding: 20px;
    margin: 25px 0;
}

h2 {
    color: #ff3333;
}

h3,
h4 {
    font-weight: normal;
}

ul {
    line-height: 1.8;
}

a {
    color: #ff3333;
    text-decoration: none;
}

a:hover {
    color: #ff6666;
    text-decoration: underline;
}

footer {
    text-align: center;
    padding: 30px;
    color: #888;
}

iframe {
    display: block;
    margin: 30px auto;
    border-radius: 12px;
}

#dc {
    text-align: center;
}

iframe {
    display: block;
    margin: 30px auto;
    border-radius: 12px;
}