html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;

    /* Bleu / bleu-vert plus foncé */
    background: linear-gradient(
        135deg,
        #080e16 0%,
        #0c1722 35%,
        #102330 70%,
        #152e3d 100%
    );

    background-attachment: fixed;

    color: #d8e6ea;
    font-family: system-ui, sans-serif;
    font-size: 16px;
    line-height: 1.7;

    max-width: 900px;
    margin: auto;
}


/* Titres */
h1, h2, h3 {
    color: #53ffe8;
    font-weight: 600;
    letter-spacing: 0.4px;
}


/* Liens = toujours soulignés */
body a,
body a:visited,
body a:active {
    color: #7dd3fc;
    text-decoration: underline;
    text-underline-offset: 3px;
}

a:hover {
    color: #eeff53;
    text-decoration: underline; /* Soulignement uniquement au survol */
}


/* Sections */
section {
    padding: 60px 25px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}


/* Code */
code {
    background: rgba(255,255,255,0.05);
    color: #9be7ff;

    padding: 3px 8px;
    border-radius: 6px;

    font-family: monospace;
}


/* Listes */
li {
    margin: 8px 0;
}

.lang-btn,
.lang-btn:hover,
.lang-btn:visited {
    text-decoration: none !important;
    color: inherit !important;
}