body {
    background-color: #0d1117;  /* GitHub dark mode background */
    color: #c9d1d9;             /* GitHub text color */
    font-family: Arial, sans-serif;
    max-width: 800px;
    margin: 40px auto;
    line-height: 1.6;
    padding-top: 10px;
}
a {
    color: #58a6ff;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

h1, h2, h3 {
    color: #ffffff;
}

header, footer {
    text-align: center;
}

hr {
    border: 0;
    border-top: 1px solid #30363d;
    margin: 20px 0;
}

pre {
    background-color: #161b22;
    border: 1px solid #30363d;
    padding: 12px;
    border-radius: 8px;
    overflow-x: auto;
    font-size: 0.9rem;
    color: #c9d1d9;
}

code {
    background-color: #21262d;
    color: #c9d1d9;
    padding: 2px 5px;
    border-radius: 4px;
    font-family: monospace;
}

ul {
    margin-left: 20px;
}

p {
    text-align: justify;
}


@media (max-width: 768px) {

    body {
        margin: 10px;
        padding: 0 10px;
        font-size: 16px;
    }

    h1 {
        font-size: 1.6em;
    }

    h2 {
        font-size: 1.3em;
    }

    pre {
        font-size: 0.8rem;
        padding: 10px;
    }

    nav a {
        display: inline-block;
        margin: 4px 6px;
    }

    ul {
        padding-left: 20px;
    }

    p {
        text-align: left;  /* easier to read on narrow screens */
    }
}



/* Logo section */
.logo {
  text-align: center;
  margin: 0;             /* remove all extra margin */
  padding: 0;            /* remove any padding */
  line-height: 0;        /* remove space from text container (like <h2>) */
}

.logo img {
  width: 70px;           /* slightly smaller for balance */
  height: 70px;
  border: 0px solid #00bcd4;
  display: block;        /* removes inline spacing below image */
  margin: 0 auto;        /* center horizontally */
}