html,
body {
    margin: 0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;


}

/* texte */
h1 {
    text-decoration: none;
    margin: 12px 14px;
    color: #00050c;
    font-size: 34px;
    font-weight: 840;
    text-align: center;
}

h2 {
    text-align: left;
    margin: 20px 32px;
    font-size: 28px;
    color: #050452;
}

h3 {
    text-align: left;
    margin: 26px 36px;
    font-size: 22px;
    color: #075391;
}

p {
    margin: 16px 38px;
    line-height: 24px;
    font-size: 18px;
    color: black;

}

#code {
    margin: 16px 38px;
    line-height: 24px;
    font-size: 18px;
    color: black;
}



ol,
ul {
    margin-left: 20px;
    font-size: 18px;
    color: #010c24;
}



/* figure */
figure {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 20px;
}

figure img {
    border-radius: 8px;
    width: 400px;

}

figure figcaption {
    text-align: center;
    font-size: 14px;
    margin-top: 08px;

}

/* header */
header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 40px;
    background-color: #0f1c2e;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);

    gap: 30px;
}

#logo {
    height: 100px;
    display: block;
    justify-content: flex-start;
}


/* nav bar */
nav {
    display: flex;
    justify-content: flex-end;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 30px;
    margin: 0;
    padding: 0;
}

nav ul li {
    margin: 0 20px;
}

nav ul li a:hover {
    border-bottom: 2px solid;
}

nav ul li a {
    text-decoration: none;
    color: #fbfbfb;
    font-size: 18px;
    font-weight: 840;
}

main {
    max-width: 1500px;
    margin: 30px auto;
    padding: 15px;
    background-color: #acb2bc;

}

/* tableaux */
table {
    width: 100%;
    max-width: 1200px;
    margin: 20px auto;
    border-collapse: collapse;
    font-family: Arial, sans-serif;
    font-size: 16px;
    background: #ffffff;
    border-radius: 10px;
}

thead th {
    border: 1px solid #0f1c2e;
    background-color: #d6dcea;
    color: #0f1c2e;
    padding: 8px;
    text-align: left;
}

tbody td {
    border: 1px solid #a4b0dc;
    padding: 6px 10px;
    vertical-align: top;
}

caption {
    caption-side: bottom;
    text-align: center;
    font-style: italic;
    margin-top: 8px;
    color: #050452;
}

table a {
    color: #002270;
}



/* footer */
footer {
    background: #0f1c2e;
    text-align: center;
    font-size: 16px;
    padding: 24px;
    margin-top: 64px;
}

footer ul {
    color: #d6dcea;
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 30px;
    margin: 0;
}

footer li::after {
    content: "|";
    margin-left: 30px;
}

footer li:last-child::after {
    content: "";
}

.conclusion {
    font-style: italic;
    margin-top: 30px;
}