body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: #f1f3f4; /* style type GDoc */
    color: #202124;
}

/* Header avec bouton retour */
header {
    background: #fff;
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

header h1 {
    font-size: 1.6em;
    color: #202124;
}

.btn-retour {
    text-decoration: none;
    color: #1a73e8;
    font-weight: bold;
    padding: 8px 12px;
    border: 1px solid #1a73e8;
    border-radius: 4px;
    transition: background 0.3s, color 0.3s;
}

.btn-retour:hover {
    background: #1a73e8;
    color: #fff;
}

/* Main */
main {
    padding: 20px 40px;
}

/* Documents style feuille */
#documentsContainer {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Carte type feuille */
.card {
    background: #fff;
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 1px 3px rgba(60,64,67,0.3), 0 4px 8px rgba(60,64,67,0.15);
    border-left: 4px solid #1a73e8;
}

.card h3 {
    margin-top: 0;
    color: #1a73e8;
}

.card p {
    font-size: 1em;
    color: #202124;
    line-height: 1.6;
}

/* Photos */
.card img {
    max-width: 100%;
    margin-top: 15px;
    border-radius: 4px;
}

/* Date */
.card .date {
    font-size: 0.85em;
    color: #5f6368;
    margin-top: 10px;
}