/* =========================
   RESET & BASE
   ========================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Segoe UI", Arial, sans-serif;
}

body {
    background-color: #f2f2f2;
    color: #222;
}
/* =========================
   NAVIGATION
   ========================= */
nav {
    margin-top: 20px;
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

nav a {
    color: #ffffff;
    font-weight: bold;
    text-decoration: none;
    padding: 10px 20px;
    background-color: #6588d8;
    border-radius: 5px;
    transition: all 0.3s;
}

nav a:hover {
    background-color: #4a6bb8;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(101, 136, 216, 0.3);
}

/* =========================
   HEADER
   ========================= */
header {
    background-color: #658d8d;
    text-align: center;
    padding: 30px 20px;
    border-bottom: 2px solid #000;
    display: grid;
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
    gap: 15px 30px;
    align-items: center;
    justify-items: start;
    color: #ffffff;
}
/* =========================
   IMAGE HEADER
   ========================= */
header img {
    margin-top: 20px;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #000;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    grid-row: 1 / 3;
    grid-column: 1;
}

header h1 {
    font-size: 32px;
    letter-spacing: 3px;
    grid-row: 1;
    grid-column: 2;
    margin: 0;
}

header h2 {
    font-size: 18px;
    font-weight: normal;
    color: #ffffff;
    grid-row: 2;
    grid-column: 2;
    margin: 0;
}

/* =========================
   LAYOUT PRINCIPAL
   ========================= */
body {
    display: grid;
    grid-template-columns: 35% 65%;
    grid-template-rows: auto 1fr;
    grid-template-areas:
        "header header"
        "aside main";
    max-width: 100%;
    margin: auto;
}

/* placement */
header { grid-area: header; }
aside  { grid-area: aside; }
main   { grid-area: main; }

/* =========================
   COLONNES
   ========================= */
aside {
    background-color: #e6e6e6;
    padding: 30px;
}

main {
    background-color: #ffffff;
    padding: 30px;
    color: #000;
}

/* =========================
   TITRES
   ========================= */
h3 {
    margin-top: 25px;
    margin-bottom: 10px;
    font-size: 17px;
    text-transform: uppercase;
    border-bottom: 2px solid #000;
    padding-bottom: 5px;
}

h4 {
    margin-top: 15px;
    font-size: 15px;
}

/* =========================
   LISTES
   ========================= */
ul {
    margin-left: 20px;
}

li {
    margin-bottom: 8px;
    line-height: 1.4;
}

/* sous-listes */
ul ul {
    margin-top: 5px;
}

/* =========================
   TEXTE
   ========================= */
p {
    margin-top: 10px;
    line-height: 1.6;
    text-align: justify;
}

/* =========================
   LIENS
   ========================= */
a {
    color: #000;
    font-weight: bold;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}
/* =========================
    PAGE BOOK AND FILM
   ========================= */
main.Book-and-Film {
    max-width: 2000px;
    margin: 0 auto;
    padding: 40px 30px;
    text-align: center;
    background-color: #4a6bb8;
    color: #ffffff;
    grid-column: 1 / -1 ;
}

main h2 {
    margin-top: 30px;
    margin-bottom: 15px;
    font-size: 24px;
}

main p {
    text-align: justify;
    line-height: 1.8;
    margin-bottom: 20px;
}

main img {
    max-width: 400px;
    width: 100%;
    height: auto;
    margin: 20px auto;
    display: block;
    border: 3px solid #000;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    border-radius: 8px;
}
aside.Book-and-film {
    background-color: #4a6bb8;
}

/* =========================
   RESPONSIVE
   ========================= */
@media screen and (max-width: 900px) {
    body {
        grid-template-columns: 1fr;
        grid-template-areas:
            "header"
            "main"
            "aside";
    }
}