body {
    margin: 0;
    padding: 0;
    height: 100vh;
    background-color: #eaeaea;
    font-family: Arial, sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.site-title {
    margin-top: 20px;
    font-size: 2em;
    color: #333;
    text-align: center;
}

.top-frame {
    width: 480px;
    height: 80px;
    background-color: #007BFF;
    border-radius: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 10px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

.main-layout {
    display: flex;
    flex-grow: 1;
    width: 100%;
    margin-top: 20px;
    box-sizing: border-box;
    padding: 0 20px;
}

.left-column {
    width: 35%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.left-box {
    width: 100%;
    background-color: #ccc;
    text-align: center;
    margin-bottom: 10px;
    box-shadow: 0 0 5px rgba(0,0,0,0.1);
}

.small-box {
    height: 20vh;
}

.tall-box {
    height: 50vh;
}
.bottom-frame {
    width: 60%;
    height: calc(80vh - 40px); /* 40px d'espace vide en bas */
    background-color: #000;
    color: #fff;
    padding: 20px;
    box-sizing: border-box;
    margin-left: 20px;
    margin-bottom: 40px; /* espace vide en bas */
    overflow-y: auto;
}
.chat-form textarea {
    width: 100%;
    resize: none;
    padding: 8px;
    border: 1px solid #999;
    border-radius: 4px;
    font-family: inherit;
    font-size: 1em;
    box-sizing: border-box;
}
.icon-grid {
    text-align: left;
    padding-left: 10px;
}
#chatInput {
    width: 90%;
    max-width: 92%;
    min-width: 90%;
    padding: 10px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
    resize: vertical;
    margin-top: 10px;
}