body{
    font-family: Arial, Helvetica, sans-serif;
    background:#f7f7f7;
    color:#222;
    margin:0;
    padding:0;
}
.container{
    width:90%;
    max-width:900px;
    margin:20px auto;
    background:#fff;
    padding:20px;
    border-radius:6px;
    box-shadow:0 2px 6px rgba(0,0,0,.08);
}
h1{
    margin-top:0;
}
label{
    display:block;
    margin:8px 0;
}
input[type="text"],
input[type="email"],
input[type="date"],
input[type="number"],
textarea,
select{
    width:100%;
    padding:8px;
    border:1px solid #ccc;
    border-radius:4px;
    box-sizing:border-box;
}
textarea{
    resize:vertical;
}
fieldset{
    border:1px solid #ddd;
    padding:10px;
    margin:10px 0;
}
button,
.btn-secondary{
    padding:10px 14px;
    border:none;
    background:#2b7cff;
    color:#fff;
    border-radius:6px;
    cursor:pointer;
    text-decoration:none;
    display:inline-block;
    margin-top:10px;
}
button:hover,
.btn-secondary:hover{
    opacity:.95;
}
.btn-secondary{
    background:#777;
}
.table-etudiants{
    width:100%;
    border-collapse:collapse;
    margin-top:10px;
    font-size:14px;
}
.table-etudiants th,
.table-etudiants td{
    border:1px solid #ddd;
    padding:6px 8px;
    text-align:left;
}
.table-etudiants th{
    background:#f0f0f0;
}
.filters{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    align-items:flex-end;
}
.filters label{
    flex:1 1 150px;
}
@media (max-width:600px){
    .filters{
        flex-direction:column;
    }
}

.grid-trombinoscope {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 25px;
    margin-top: 30px;
}

.card-trombinoscope {
    text-align: center;
    padding: 10px;
}

.card-trombinoscope img {
    width: 150px;
    height: 180px;
    object-fit: cover;
    border-radius: 8px;
    display: block;
    margin: 0 auto 10px auto;
}

.nom-etudiant {
    font-size: 1.1rem;
    font-weight: bold;
}

@media (max-width: 900px) {
    .grid-trombinoscope {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 600px) {
    .grid-trombinoscope {
        grid-template-columns: repeat(2, 1fr);
    }

    .card-trombinoscope img {
        width: 130px;
        height: 155px;
    }
}