body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #111827;
    color: #e5e7eb
}

.center {
    max-width: 640px;
    margin: 8vh auto
}

.card {
    background: #1f2937;
    border-radius: 12px;
    padding: 24px
}


.layout {
    display: grid;
    grid-template-columns:220px 1fr;
    height: 100vh
}

.members {
    border-right: 1px solid #374151;
    padding: 12px
}

.chat {
    display: flex;
    flex-direction: column
}

.messages {
    flex: 1;
    overflow: auto;
    padding: 12px
}

.msg {
    background: #1f2937;
    border-radius: 8px;
    padding: 8px;
    margin-bottom: 8px
}

.error {
    color: #fca5a5
}

#sendForm {
    display: flex;
    gap: 8px;
    padding: 12px
}

#sendForm input {
    flex: 1
}

@media (max-width: 760px) {
    .layout {
        grid-template-columns:1fr
    }

    .members {
        display: none
    }
}

html, body { height: 100%; }
body { display: flex; flex-direction: column; justify-content: space-between; }
.legal-links { margin-top: 10px; }
.legal-links a { color: #888; margin: 0 12px; text-decoration: none; transition: color 0.3s; }
.legal-links a:hover { color: #fff; }
main { flex: 1; display: flex; align-items: center; justify-content: center; padding: 1rem .75rem; }
.footer { text-align: center; padding: 20px; font-size: .9rem; color: #aaa; }