:root {
    --font-primary: "Mona Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

    --bg-dark: #0A0F1A;
    --bg-dark-secondary: #111a2c;
    --pre-bg: #010409;
    --border-color: #274272;
    --color-blue-light: #6C90C3;

    /* Texto */
    --text-light: #F0F3FA;
    --text-gray: #AEAEAE;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: var(--font-primary);
}

html {
    scroll-behavior: smooth;
}

body{
    background-color: var(--bg-dark);
    color: var(--text-light);
    font-size: 16px;
}

/* --- TopBar --- */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
}

.topbar {
    width: 100%;
    padding: 10px 30px;
    display: flex;
    align-items: center;
    background-color: var(--bg-dark);
    border-bottom: 1px solid var(--border-color);
    gap: 20px;
}

.topbar-title {
    font-size: 2rem;
    color: var(--text-light);
}

.topbar-logo img{
    height: 50px;
    width:auto;
    display: block;
}

/* --- SideBar --- */
.sidebar {
    width: 320px;
    height: calc(100vh - 71px);
    position: fixed;
    top: 71px;
    left: 0;
    background-color: var(--bg-dark-secondary);
    padding: 25px;
    overflow-y: auto;
    border-right: 1px solid var(--border-color);
}

.sidebar ul {
    list-style-type: none;
}

.list-title {
    margin-bottom: 20px;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-light);
}

.sidebar ul ul {
    margin-top: 15px;
    padding-left: 15px;
    border-left: 1px solid var(--border-color);
}

.sidebar li li {
    margin-bottom: 10px;
}

.sidebar a{
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 400;
    color: var(--text-gray);
    transition: color 0.2s ease;
}

.sidebar a:hover {
    color: var(--color-blue-light);
}

/* --- Main Container--- */
main {
    padding-top: 71px;
    padding-left: 320px;
}

.text-container {
    padding: 40px;
}

article {
    margin-bottom: 50px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
}

.topic-title {
    font-size: 2.5rem;
    margin-bottom: 30px;
    color: var(--color-blue-light);
}

article h3 {
    font-size: 1.6rem;
    margin-bottom: 20px;
}
article h4 {
    font-size: 1.2rem;
}

article p, article li {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-gray);
    margin-bottom: 15px;
}

article ul, article ol {
    padding-left: 25px;
}

article img {
    max-width: 400px;
    height: auto;
    border-radius: 8px;
    margin-top: 15px;
    opacity: 0.9;
}

/* --- Estilos de codigos y tablas --- */
pre {
    background-color: var(--pre-bg);
    padding: 20px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 20px 0;
    border: 1px solid var(--border-color);
}

code {
    font-family: 'Courier New', Courier, monospace;
    font-size: 1rem;
    color: #c9d1d9;
}

article p > code, article li > code {
    background-color: var(--border-color);
    padding: 3px 6px;
    border-radius: 4px;
    color: var(--text-light);
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

th, td {
    padding: 12px 15px;
    text-align: left;
    border: 1px solid var(--border-color);
}

thead th {
    background-color: var(--bg-dark-secondary);
    color: var(--text-light);
    font-size: 1.1rem;
}

/* --- Footer --- */
footer {
    padding: 20px;
    text-align: center;
    border-top: 1px solid var(--border-color);
    color: var(--text-gray);
    margin-left: 320px;
}

footer a {
    color: var(--color-blue-light);
    text-decoration: none;
}

/* --- Scrollbars --- */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark-secondary);
}

::-webkit-scrollbar-thumb {
    background-color: #2d3a50;
    border-radius: 10px;
    border: 2px solid var(--bg-dark-secondary);
}

::-webkit-scrollbar-thumb:hover {
    background-color: var(--color-blue-light);
}