*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    background: #2a2f42;
    color: #fff;
    font-family: "Helvetica", "Arial", sans-serif;
    font-size: 1.1rem;
    line-height: 1.3;
}

a {
    color: #27bbff;
    text-decoration: none;

    &:hover {
        text-decoration: underline;
    }
}

h1 {
    font-weight: bolder;
    color: #f8dc0c;
}

h2 {
    margin-top: 2rem;
    color: #ef5c92;
}

h3 {
    color: #85bae7;
}

.container {
    max-width: 800px;
    margin: auto;
    padding: 24px;
    min-height: 100vh;
    background: #121420;
}

.center {
    text-align: center;
}

.responsive {
    width: 100%;
    height: auto;
}

.rounded {
    border-radius: 8px;
}

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

ul.nav li {
    display: inline;
    margin-right: 0.5rem;
}

code {
    background: #111;
    padding: 4px;
}

.iframe-container {
    position: relative;
    overflow: hidden;
    width: 100%;
    padding-top: 56.25%; /* 16:9 Aspect Ratio (divide 9 by 16 = 0.5625) */
    margin-bottom: 16px;
}

.iframe-container > iframe {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    width: 100%;
    height: 100%;
    border-radius: 8px;
}

.mt-4 {
    margin-top: 4em;
}