body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #f7f9fb;
    margin: 0;
    padding: 0;
    color: #23272f;
}

.container {
    max-width: 500px; /* ou 1000px selon ton écran */
    margin: 60px auto;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(30,40,60,0.04);
    padding: 28px 20px 20px 20px;
    text-align: center;
}

.container-archives {
    max-width: 1000px; /* élargi le container */
    margin: 60px auto;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(30,40,60,0.04);
    padding: 28px 20px 20px 20px;
    text-align: center;
    overflow-x: auto; /* permet le scroll horizontal si besoin */
}

h1 {
    margin-bottom: 24px;
    font-size: 1.7em;
    font-weight: 600;
    letter-spacing: -0.5px;
    color: #1a237e;
}

.btn {
    display: block;
    width: 100%;
    margin: 14px 0;
    padding: 12px;
    font-size: 1em;
    border: 2px solid #1976d2;
    border-radius: 8px;
    background: #fff;
    color: #1976d2;
    cursor: pointer;
    font-weight: 500;
    transition: background 0.18s, color 0.18s, box-shadow 0.18s;
    box-shadow: none;
}

.btn:hover, .btn:focus {
    background: rgba(25, 118, 210, 0.12); /* bleu transparent */
    color: #1976d2;
    box-shadow: 0 2px 8px #1976d220;
    outline: none;
}

.btn-secondary {
    border-color: #8e24aa;
    color: #8e24aa;
    background: #fff;
}


.btn-secondary:hover, .btn-secondary:focus {
    background: rgba(142, 36, 170, 0.12); /* violet transparent */
    color: #8e24aa;
    box-shadow: 0 2px 8px #8e24aa22;
}

a {
    color: #1a237e;
    text-decoration: none;
    transition: color 0.15s;
}

a:hover, a:focus {
    color: #3949ab;
    text-decoration: underline;
}

@media (max-width: 600px) {
    .container {
        max-width: 98vw;
        margin: 24px 1vw;
        padding: 16px 4px;
    }
    h1 {
        font-size: 1.1em;
    }
    .btn {
        font-size: 0.95em;
        padding: 10px;
    }
}